[FFmpeg-cvslog] WavPack encoder
Paul B Mahol
git at videolan.org
Wed Aug 14 16:09:20 CEST 2013
ffmpeg | branch: master | Paul B Mahol <onemda at gmail.com> | Tue Jan 22 20:05:44 2013 +0000| [93f4277714ff7b8bb46306808bc42fff28d47dc8] | committer: Paul B Mahol
WavPack encoder
Signed-off-by: Paul B Mahol <onemda at gmail.com>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=93f4277714ff7b8bb46306808bc42fff28d47dc8
---
doc/general.texi | 3 +-
libavcodec/Makefile | 1 +
libavcodec/allcodecs.c | 2 +-
libavcodec/version.h | 2 +-
libavcodec/wavpack.c | 160 +--
libavcodec/wavpack.h | 192 +++
libavcodec/wavpackenc.c | 2987 +++++++++++++++++++++++++++++++++++++++++++++++
libavcodec/wavpackenc.h | 664 +++++++++++
8 files changed, 3848 insertions(+), 163 deletions(-)
diff --git a/doc/general.texi b/doc/general.texi
index 0e8e410..b755c18 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -924,8 +924,7 @@ following image formats are supported:
@tab A native but very primitive encoder exists.
@item Voxware MetaSound @tab @tab X
@tab imperfect and incomplete support
- at item WavPack @tab E @tab X
- @tab supported through external library libwavpack
+ at item WavPack @tab X @tab X
@item Westwood Audio (SND1) @tab @tab X
@item Windows Media Audio 1 @tab X @tab X
@item Windows Media Audio 2 @tab X @tab X
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index e9ba2fa..ce3cbf9 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -473,6 +473,7 @@ OBJS-$(CONFIG_VP8_DECODER) += vp8.o vp8dsp.o vp56rac.o
OBJS-$(CONFIG_VPLAYER_DECODER) += textdec.o ass.o
OBJS-$(CONFIG_VQA_DECODER) += vqavideo.o
OBJS-$(CONFIG_WAVPACK_DECODER) += wavpack.o
+OBJS-$(CONFIG_WAVPACK_ENCODER) += wavpackenc.o
OBJS-$(CONFIG_WEBP_DECODER) += vp8.o vp8dsp.o vp56rac.o
OBJS-$(CONFIG_WEBVTT_DECODER) += webvttdec.o
OBJS-$(CONFIG_WMALOSSLESS_DECODER) += wmalosslessdec.o wma_common.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 57329b5..afedb54 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -365,7 +365,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(TWINVQ, twinvq);
REGISTER_DECODER(VMDAUDIO, vmdaudio);
REGISTER_ENCDEC (VORBIS, vorbis);
- REGISTER_DECODER(WAVPACK, wavpack);
+ REGISTER_ENCDEC (WAVPACK, wavpack);
REGISTER_DECODER(WMALOSSLESS, wmalossless);
REGISTER_DECODER(WMAPRO, wmapro);
REGISTER_ENCDEC (WMAV1, wmav1);
diff --git a/libavcodec/version.h b/libavcodec/version.h
index e31fea2..553f5f2 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#include "libavutil/avutil.h"
#define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 27
+#define LIBAVCODEC_VERSION_MINOR 28
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavcodec/wavpack.c b/libavcodec/wavpack.c
index 47f598a..ac03c16 100644
--- a/libavcodec/wavpack.c
+++ b/libavcodec/wavpack.c
@@ -28,60 +28,13 @@
#include "thread.h"
#include "unary.h"
#include "bytestream.h"
+#include "wavpack.h"
/**
* @file
* WavPack lossless audio decoder
*/
-#define WV_HEADER_SIZE 32
-
-#define WV_MONO 0x00000004
-#define WV_JOINT_STEREO 0x00000010
-#define WV_FALSE_STEREO 0x40000000
-
-#define WV_HYBRID_MODE 0x00000008
-#define WV_HYBRID_SHAPE 0x00000008
-#define WV_HYBRID_BITRATE 0x00000200
-#define WV_HYBRID_BALANCE 0x00000400
-#define WV_INITIAL_BLOCK 0x00000800
-#define WV_FINAL_BLOCK 0x00001000
-
-#define WV_SINGLE_BLOCK (WV_INITIAL_BLOCK | WV_FINAL_BLOCK)
-
-#define WV_FLT_SHIFT_ONES 0x01
-#define WV_FLT_SHIFT_SAME 0x02
-#define WV_FLT_SHIFT_SENT 0x04
-#define WV_FLT_ZERO_SENT 0x08
-#define WV_FLT_ZERO_SIGN 0x10
-
-#define WV_MAX_SAMPLES 131072
-
-enum WP_ID_Flags {
- WP_IDF_MASK = 0x3F,
- WP_IDF_IGNORE = 0x20,
- WP_IDF_ODD = 0x40,
- WP_IDF_LONG = 0x80
-};
-
-enum WP_ID {
- WP_ID_DUMMY = 0,
- WP_ID_ENCINFO,
- WP_ID_DECTERMS,
- WP_ID_DECWEIGHTS,
- WP_ID_DECSAMPLES,
- WP_ID_ENTROPY,
- WP_ID_HYBRID,
- WP_ID_SHAPING,
- WP_ID_FLOATINFO,
- WP_ID_INT32INFO,
- WP_ID_DATA,
- WP_ID_CORR,
- WP_ID_EXTRABITS,
- WP_ID_CHANINFO,
- WP_ID_SAMPLE_RATE = 0x27,
-};
-
typedef struct SavedContext {
int offset;
int size;
@@ -89,23 +42,6 @@ typedef struct SavedContext {
uint32_t crc;
} SavedContext;
-#define MAX_TERMS 16
-
-typedef struct Decorr {
- int delta;
- int value;
- int weightA;
- int weightB;
- int samplesA[8];
- int samplesB[8];
-} Decorr;
-
-typedef struct WvChannel {
- int median[3];
- int slow_level, error_limit;
- int bitrate_acc, bitrate_delta;
-} WvChannel;
-
typedef struct WavpackFrameContext {
AVCodecContext *avctx;
int frame_flags;
@@ -147,102 +83,8 @@ typedef struct WavpackContext {
int ch_offset;
} WavpackContext;
-static const int wv_rates[16] = {
- 6000, 8000, 9600, 11025, 12000, 16000, 22050, 24000,
- 32000, 44100, 48000, 64000, 88200, 96000, 192000, 0
-};
-
-// exponent table copied from WavPack source
-static const uint8_t wp_exp2_table[256] = {
- 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x08, 0x09, 0x0a, 0x0b,
- 0x0b, 0x0c, 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15, 0x16, 0x16,
- 0x17, 0x18, 0x19, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1d, 0x1e, 0x1f, 0x20, 0x20, 0x21, 0x22, 0x23,
- 0x24, 0x24, 0x25, 0x26, 0x27, 0x28, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
- 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3a, 0x3b, 0x3c, 0x3d,
- 0x3e, 0x3f, 0x40, 0x41, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x48, 0x49, 0x4a, 0x4b,
- 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a,
- 0x5b, 0x5c, 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
- 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
- 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a,
- 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b,
- 0x9c, 0x9d, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad,
- 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0,
- 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc8, 0xc9, 0xca, 0xcb, 0xcd, 0xce, 0xcf, 0xd0, 0xd2, 0xd3, 0xd4,
- 0xd6, 0xd7, 0xd8, 0xd9, 0xdb, 0xdc, 0xdd, 0xde, 0xe0, 0xe1, 0xe2, 0xe4, 0xe5, 0xe6, 0xe8, 0xe9,
- 0xea, 0xec, 0xed, 0xee, 0xf0, 0xf1, 0xf2, 0xf4, 0xf5, 0xf6, 0xf8, 0xf9, 0xfa, 0xfc, 0xfd, 0xff
-};
-
-static const uint8_t wp_log2_table [] = {
- 0x00, 0x01, 0x03, 0x04, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x10, 0x11, 0x12, 0x14, 0x15,
- 0x16, 0x18, 0x19, 0x1a, 0x1c, 0x1d, 0x1e, 0x20, 0x21, 0x22, 0x24, 0x25, 0x26, 0x28, 0x29, 0x2a,
- 0x2c, 0x2d, 0x2e, 0x2f, 0x31, 0x32, 0x33, 0x34, 0x36, 0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3d, 0x3e,
- 0x3f, 0x41, 0x42, 0x43, 0x44, 0x45, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
- 0x52, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63,
- 0x64, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x74, 0x75,
- 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85,
- 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95,
- 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
- 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb2,
- 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc0,
- 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcb, 0xcc, 0xcd, 0xce,
- 0xcf, 0xd0, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd8, 0xd9, 0xda, 0xdb,
- 0xdc, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe4, 0xe5, 0xe6, 0xe7, 0xe7,
- 0xe8, 0xe9, 0xea, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xee, 0xef, 0xf0, 0xf1, 0xf1, 0xf2, 0xf3, 0xf4,
- 0xf4, 0xf5, 0xf6, 0xf7, 0xf7, 0xf8, 0xf9, 0xf9, 0xfa, 0xfb, 0xfc, 0xfc, 0xfd, 0xfe, 0xff, 0xff
-};
-
-static av_always_inline int wp_exp2(int16_t val)
-{
- int res, neg = 0;
-
- if (val < 0) {
- val = -val;
- neg = 1;
- }
-
- res = wp_exp2_table[val & 0xFF] | 0x100;
- val >>= 8;
- res = (val > 9) ? (res << (val - 9)) : (res >> (9 - val));
- return neg ? -res : res;
-}
-
-static av_always_inline int wp_log2(int32_t val)
-{
- int bits;
-
- if (!val)
- return 0;
- if (val == 1)
- return 256;
- val += val >> 9;
- bits = av_log2(val) + 1;
- if (bits < 9)
- return (bits << 8) + wp_log2_table[(val << (9 - bits)) & 0xFF];
- else
- return (bits << 8) + wp_log2_table[(val >> (bits - 9)) & 0xFF];
-}
-
#define LEVEL_DECAY(a) ((a + 0x80) >> 8)
-// macros for manipulating median values
-#define GET_MED(n) ((c->median[n] >> 4) + 1)
-#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> n) - 2) / (128 >> n)) * 2
-#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> n) ) / (128 >> n)) * 5
-
-// macros for applying weight
-#define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \
- if (samples && in) { \
- if ((samples ^ in) < 0) { \
- weight -= delta; \
- if (weight < -1024) \
- weight = -1024; \
- } else { \
- weight += delta; \
- if (weight > 1024) \
- weight = 1024; \
- } \
- }
-
static av_always_inline int get_tail(GetBitContext *gb, int k)
{
int p, e, res;
diff --git a/libavcodec/wavpack.h b/libavcodec/wavpack.h
new file mode 100644
index 0000000..bca6c45
--- /dev/null
+++ b/libavcodec/wavpack.h
@@ -0,0 +1,192 @@
+/*
+ * WavPack decoder/encoder common code
+ * Copyright (c) 2006,2011 Konstantin Shishkov
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_WAVPACK_H
+#define AVCODEC_WAVPACK_H
+
+#define MAX_TERMS 16
+#define MAX_TERM 8
+
+#define WV_HEADER_SIZE 32
+
+#define WV_MONO 0x00000004
+#define WV_JOINT_STEREO 0x00000010
+#define WV_CROSS_DECORR 0x00000020
+#define WV_FLOAT_DATA 0x00000080
+#define WV_INT32_DATA 0x00000100
+#define WV_FALSE_STEREO 0x40000000
+
+#define WV_HYBRID_MODE 0x00000008
+#define WV_HYBRID_SHAPE 0x00000008
+#define WV_HYBRID_BITRATE 0x00000200
+#define WV_HYBRID_BALANCE 0x00000400
+#define WV_INITIAL_BLOCK 0x00000800
+#define WV_FINAL_BLOCK 0x00001000
+
+#define WV_MONO_DATA (WV_MONO | WV_FALSE_STEREO)
+
+#define WV_SINGLE_BLOCK (WV_INITIAL_BLOCK | WV_FINAL_BLOCK)
+
+#define WV_FLT_SHIFT_ONES 0x01
+#define WV_FLT_SHIFT_SAME 0x02
+#define WV_FLT_SHIFT_SENT 0x04
+#define WV_FLT_ZERO_SENT 0x08
+#define WV_FLT_ZERO_SIGN 0x10
+
+#define WV_MAX_SAMPLES 131072
+
+enum WP_ID_Flags {
+ WP_IDF_MASK = 0x3F,
+ WP_IDF_IGNORE = 0x20,
+ WP_IDF_ODD = 0x40,
+ WP_IDF_LONG = 0x80
+};
+
+enum WP_ID {
+ WP_ID_DUMMY = 0,
+ WP_ID_ENCINFO,
+ WP_ID_DECTERMS,
+ WP_ID_DECWEIGHTS,
+ WP_ID_DECSAMPLES,
+ WP_ID_ENTROPY,
+ WP_ID_HYBRID,
+ WP_ID_SHAPING,
+ WP_ID_FLOATINFO,
+ WP_ID_INT32INFO,
+ WP_ID_DATA,
+ WP_ID_CORR,
+ WP_ID_EXTRABITS,
+ WP_ID_CHANINFO,
+ WP_ID_SAMPLE_RATE = 0x27,
+};
+
+typedef struct Decorr {
+ int delta;
+ int value;
+ int weightA;
+ int weightB;
+ int samplesA[MAX_TERM];
+ int samplesB[MAX_TERM];
+ int sumA;
+ int sumB;
+} Decorr;
+
+typedef struct WvChannel {
+ int median[3];
+ int slow_level, error_limit;
+ int bitrate_acc, bitrate_delta;
+} WvChannel;
+
+// macros for manipulating median values
+#define GET_MED(n) ((c->median[n] >> 4) + 1)
+#define DEC_MED(n) c->median[n] -= ((c->median[n] + (128 >> n) - 2) / (128 >> n)) * 2
+#define INC_MED(n) c->median[n] += ((c->median[n] + (128 >> n) ) / (128 >> n)) * 5
+
+// macros for applying weight
+#define UPDATE_WEIGHT_CLIP(weight, delta, samples, in) \
+ if (samples && in) { \
+ if ((samples ^ in) < 0) { \
+ weight -= delta; \
+ if (weight < -1024) \
+ weight = -1024; \
+ } else { \
+ weight += delta; \
+ if (weight > 1024) \
+ weight = 1024; \
+ } \
+ }
+
+static const int wv_rates[16] = {
+ 6000, 8000, 9600, 11025, 12000, 16000, 22050, 24000,
+ 32000, 44100, 48000, 64000, 88200, 96000, 192000, 0
+};
+
+// exponent table copied from WavPack source
+static const uint8_t wp_exp2_table[256] = {
+ 0x00, 0x01, 0x01, 0x02, 0x03, 0x03, 0x04, 0x05, 0x06, 0x06, 0x07, 0x08, 0x08, 0x09, 0x0a, 0x0b,
+ 0x0b, 0x0c, 0x0d, 0x0e, 0x0e, 0x0f, 0x10, 0x10, 0x11, 0x12, 0x13, 0x13, 0x14, 0x15, 0x16, 0x16,
+ 0x17, 0x18, 0x19, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1d, 0x1e, 0x1f, 0x20, 0x20, 0x21, 0x22, 0x23,
+ 0x24, 0x24, 0x25, 0x26, 0x27, 0x28, 0x28, 0x29, 0x2a, 0x2b, 0x2c, 0x2c, 0x2d, 0x2e, 0x2f, 0x30,
+ 0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x35, 0x36, 0x37, 0x38, 0x39, 0x3a, 0x3a, 0x3b, 0x3c, 0x3d,
+ 0x3e, 0x3f, 0x40, 0x41, 0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x48, 0x49, 0x4a, 0x4b,
+ 0x4c, 0x4d, 0x4e, 0x4f, 0x50, 0x51, 0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a,
+ 0x5b, 0x5c, 0x5d, 0x5e, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
+ 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79,
+ 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x87, 0x88, 0x89, 0x8a,
+ 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x95, 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b,
+ 0x9c, 0x9d, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad,
+ 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4, 0xb6, 0xb7, 0xb8, 0xb9, 0xba, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0,
+ 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc8, 0xc9, 0xca, 0xcb, 0xcd, 0xce, 0xcf, 0xd0, 0xd2, 0xd3, 0xd4,
+ 0xd6, 0xd7, 0xd8, 0xd9, 0xdb, 0xdc, 0xdd, 0xde, 0xe0, 0xe1, 0xe2, 0xe4, 0xe5, 0xe6, 0xe8, 0xe9,
+ 0xea, 0xec, 0xed, 0xee, 0xf0, 0xf1, 0xf2, 0xf4, 0xf5, 0xf6, 0xf8, 0xf9, 0xfa, 0xfc, 0xfd, 0xff
+};
+
+static const uint8_t wp_log2_table [] = {
+ 0x00, 0x01, 0x03, 0x04, 0x06, 0x07, 0x09, 0x0a, 0x0b, 0x0d, 0x0e, 0x10, 0x11, 0x12, 0x14, 0x15,
+ 0x16, 0x18, 0x19, 0x1a, 0x1c, 0x1d, 0x1e, 0x20, 0x21, 0x22, 0x24, 0x25, 0x26, 0x28, 0x29, 0x2a,
+ 0x2c, 0x2d, 0x2e, 0x2f, 0x31, 0x32, 0x33, 0x34, 0x36, 0x37, 0x38, 0x39, 0x3b, 0x3c, 0x3d, 0x3e,
+ 0x3f, 0x41, 0x42, 0x43, 0x44, 0x45, 0x47, 0x48, 0x49, 0x4a, 0x4b, 0x4d, 0x4e, 0x4f, 0x50, 0x51,
+ 0x52, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5a, 0x5c, 0x5d, 0x5e, 0x5f, 0x60, 0x61, 0x62, 0x63,
+ 0x64, 0x66, 0x67, 0x68, 0x69, 0x6a, 0x6b, 0x6c, 0x6d, 0x6e, 0x6f, 0x70, 0x71, 0x72, 0x74, 0x75,
+ 0x76, 0x77, 0x78, 0x79, 0x7a, 0x7b, 0x7c, 0x7d, 0x7e, 0x7f, 0x80, 0x81, 0x82, 0x83, 0x84, 0x85,
+ 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94, 0x95,
+ 0x96, 0x97, 0x98, 0x99, 0x9a, 0x9b, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f, 0xa0, 0xa1, 0xa2, 0xa3, 0xa4,
+ 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb2,
+ 0xb3, 0xb4, 0xb5, 0xb6, 0xb7, 0xb8, 0xb9, 0xb9, 0xba, 0xbb, 0xbc, 0xbd, 0xbe, 0xbf, 0xc0, 0xc0,
+ 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcb, 0xcc, 0xcd, 0xce,
+ 0xcf, 0xd0, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4, 0xd4, 0xd5, 0xd6, 0xd7, 0xd8, 0xd8, 0xd9, 0xda, 0xdb,
+ 0xdc, 0xdc, 0xdd, 0xde, 0xdf, 0xe0, 0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe4, 0xe5, 0xe6, 0xe7, 0xe7,
+ 0xe8, 0xe9, 0xea, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xee, 0xef, 0xf0, 0xf1, 0xf1, 0xf2, 0xf3, 0xf4,
+ 0xf4, 0xf5, 0xf6, 0xf7, 0xf7, 0xf8, 0xf9, 0xf9, 0xfa, 0xfb, 0xfc, 0xfc, 0xfd, 0xfe, 0xff, 0xff
+};
+
+static av_always_inline int wp_exp2(int16_t val)
+{
+ int res, neg = 0;
+
+ if (val < 0) {
+ val = -val;
+ neg = 1;
+ }
+
+ res = wp_exp2_table[val & 0xFF] | 0x100;
+ val >>= 8;
+ res = (val > 9) ? (res << (val - 9)) : (res >> (9 - val));
+ return neg ? -res : res;
+}
+
+static av_always_inline int wp_log2(int32_t val)
+{
+ int bits;
+
+ if (!val)
+ return 0;
+ if (val == 1)
+ return 256;
+ val += val >> 9;
+ bits = av_log2(val) + 1;
+ if (bits < 9)
+ return (bits << 8) + wp_log2_table[(val << (9 - bits)) & 0xFF];
+ else
+ return (bits << 8) + wp_log2_table[(val >> (bits - 9)) & 0xFF];
+}
+
+#endif /* AVCODEC_WAVPACK_H */
diff --git a/libavcodec/wavpackenc.c b/libavcodec/wavpackenc.c
new file mode 100644
index 0000000..1a4f252
--- /dev/null
+++ b/libavcodec/wavpackenc.c
@@ -0,0 +1,2987 @@
+/*
+ * WavPack lossless audio encoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#define BITSTREAM_WRITER_LE
+
+#include "libavutil/intreadwrite.h"
+#include "libavutil/opt.h"
+#include "avcodec.h"
+#include "internal.h"
+#include "put_bits.h"
+#include "bytestream.h"
+#include "wavpackenc.h"
+#include "wavpack.h"
+
+#define UPDATE_WEIGHT(weight, delta, source, result) \
+ if (source && result) { \
+ int32_t s = (int32_t) (source ^ result) >> 31; \
+ weight = (delta ^ s) + (weight - s); \
+ }
+
+#define APPLY_WEIGHT_F(weight, sample) (((((sample & 0xffff) * weight) >> 9) + \
+ (((sample & ~0xffff) >> 9) * weight) + 1) >> 1)
+
+#define APPLY_WEIGHT_I(weight, sample) ((weight * sample + 512) >> 10)
+
+#define APPLY_WEIGHT(weight, sample) (sample != (short) sample ? \
+ APPLY_WEIGHT_F(weight, sample) : APPLY_WEIGHT_I (weight, sample))
+
+#define CLEAR(destin) memset(&destin, 0, sizeof(destin));
+
+#define SHIFT_LSB 13
+#define SHIFT_MASK (0x1FU << SHIFT_LSB)
+
+#define MAG_LSB 18
+#define MAG_MASK (0x1FU << MAG_LSB)
+
+#define SRATE_LSB 23
+#define SRATE_MASK (0xFU << SRATE_LSB)
+
+#define EXTRA_TRY_DELTAS 1
+#define EXTRA_ADJUST_DELTAS 2
+#define EXTRA_SORT_FIRST 4
+#define EXTRA_BRANCHES 8
+#define EXTRA_SORT_LAST 16
+
+typedef struct WavPackExtraInfo {
+ struct Decorr dps[MAX_TERMS];
+ int nterms, log_limit, gt16bit;
+ uint32_t best_bits;
+} WavPackExtraInfo;
+
+typedef struct WavPackWords {
+ int pend_data, holding_one, zeros_acc;
+ int holding_zero, pend_count;
+ WvChannel c[2];
+} WavPackWords;
+
+typedef struct WavPackEncodeContext {
+ AVClass *class;
+ AVCodecContext *avctx;
+ PutBitContext pb;
+ int block_samples;
+ int buffer_size;
+ int sample_index;
+ int stereo, stereo_in;
+ int ch_offset;
+
+ int32_t *samples[2];
+ int samples_size[2];
+
+ int32_t *sampleptrs[MAX_TERMS+2][2];
+ int sampleptrs_size[MAX_TERMS+2][2];
+
+ int32_t *temp_buffer[2][2];
+ int temp_buffer_size[2][2];
+
+ int32_t *best_buffer[2];
+ int best_buffer_size[2];
+
+ int32_t *js_left, *js_right;
+ int js_left_size, js_right_size;
+
+ int32_t *orig_l, *orig_r;
+ int orig_l_size, orig_r_size;
+
+ unsigned extra_flags;
+ int optimize_mono;
+ int decorr_filter;
+ int joint;
+ int num_branches;
+
+ uint32_t flags;
+ uint32_t crc_x;
+ WavPackWords w;
+
+ uint8_t int32_sent_bits, int32_zeros, int32_ones, int32_dups;
+ uint8_t float_flags, float_shift, float_max_exp, max_exp;
+ int32_t shifted_ones, shifted_zeros, shifted_both;
+ int32_t false_zeros, neg_zeros, ordata;
+
+ int num_terms, shift, joint_stereo, false_stereo;
+ int num_decorrs, num_passes, best_decorr, mask_decorr;
+ struct Decorr decorr_passes[MAX_TERMS];
+ const WavPackDecorrSpec *decorr_specs;
+ float delta_decay;
+} WavPackEncodeContext;
+
+static av_cold int wavpack_encode_init(AVCodecContext *avctx)
+{
+ WavPackEncodeContext *s = avctx->priv_data;
+
+ s->avctx = avctx;
+
+ if (!avctx->frame_size) {
+ int block_samples;
+ if (!(avctx->sample_rate & 1))
+ block_samples = avctx->sample_rate / 2;
+ else
+ block_samples = avctx->sample_rate;
+
+ while (block_samples * avctx->channels > 150000)
+ block_samples /= 2;
+
+ while (block_samples * avctx->channels < 40000)
+ block_samples *= 2;
+ avctx->frame_size = block_samples;
+ } else if (avctx->frame_size && (avctx->frame_size < 128 ||
+ avctx->frame_size > WV_MAX_SAMPLES)) {
+ av_log(avctx, AV_LOG_ERROR, "invalid block size: %d\n", avctx->frame_size);
+ return AVERROR(EINVAL);
+ }
+
+ if (avctx->compression_level != FF_COMPRESSION_DEFAULT) {
+ if (avctx->compression_level >= 3) {
+ s->decorr_filter = 3;
+ s->num_passes = 9;
+ if (avctx->compression_level >= 8) {
+ s->num_branches = 4;
+ s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_SORT_LAST|EXTRA_BRANCHES;
+ } else if (avctx->compression_level >= 7) {
+ s->num_branches = 3;
+ s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
+ } else if (avctx->compression_level >= 6) {
+ s->num_branches = 2;
+ s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
+ } else if (avctx->compression_level >= 5) {
+ s->num_branches = 1;
+ s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_SORT_FIRST|EXTRA_BRANCHES;
+ } else if (avctx->compression_level >= 4) {
+ s->num_branches = 1;
+ s->extra_flags = EXTRA_TRY_DELTAS|EXTRA_ADJUST_DELTAS|EXTRA_BRANCHES;
+ }
+ } else if (avctx->compression_level == 2) {
+ s->decorr_filter = 2;
+ s->num_passes = 4;
+ } else if (avctx->compression_level == 1) {
+ s->decorr_filter = 1;
+ s->num_passes = 2;
+ } else if (avctx->compression_level < 1) {
+ s->decorr_filter = 0;
+ s->num_passes = 0;
+ }
+ }
+
+ s->num_decorrs = decorr_filter_sizes[s->decorr_filter];
+ s->decorr_specs = decorr_filters[s->decorr_filter];
+
+ s->delta_decay = 2.0;
+
+ return 0;
+}
+
+static void shift_mono(int32_t *samples, int nb_samples, int shift)
+{
+ int i;
+ for (i = 0; i < nb_samples; i++)
+ samples[i] >>= shift;
+}
+
+static void shift_stereo(int32_t *left, int32_t *right,
+ int nb_samples, int shift)
+{
+ int i;
+ for (i = 0; i < nb_samples; i++) {
+ left [i] >>= shift;
+ right[i] >>= shift;
+ }
+}
+
+#define FLOAT_SHIFT_ONES 1
+#define FLOAT_SHIFT_SAME 2
+#define FLOAT_SHIFT_SENT 4
+#define FLOAT_ZEROS_SENT 8
+#define FLOAT_NEG_ZEROS 0x10
+#define FLOAT_EXCEPTIONS 0x20
+
+#define get_mantissa(f) ((f) & 0x7fffff)
+#define get_exponent(f) (((f) >> 23) & 0xff)
+#define get_sign(f) (((f) >> 31) & 0x1)
+
+static void process_float(WavPackEncodeContext *s, int32_t *sample)
+{
+ int32_t shift_count, value, f = *sample;
+
+ if (get_exponent(f) == 255) {
+ s->float_flags |= FLOAT_EXCEPTIONS;
+ value = 0x1000000;
+ shift_count = 0;
+ } else if (get_exponent(f)) {
+ shift_count = s->max_exp - get_exponent(f);
+ value = 0x800000 + get_mantissa(f);
+ } else {
+ shift_count = s->max_exp ? s->max_exp - 1 : 0;
+ value = get_mantissa(f);
+ }
+
+ if (shift_count < 25)
+ value >>= shift_count;
+ else
+ value = 0;
+
+ if (!value) {
+ if (get_exponent(f) || get_mantissa(f))
+ s->false_zeros++;
+ else if (get_sign(f))
+ s->neg_zeros++;
+ } else if (shift_count) {
+ int32_t mask = (1 << shift_count) - 1;
+
+ if (!(get_mantissa(f) & mask))
+ s->shifted_zeros++;
+ else if ((get_mantissa(f) & mask) == mask)
+ s->shifted_ones++;
+ else
+ s->shifted_both++;
+ }
+
+ s->ordata |= value;
+ *sample = get_sign(f) ? -value : value;
+}
+
+static int scan_float(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ uint32_t crc = 0xffffffffu;
+ int i;
+
+ s->shifted_ones = s->shifted_zeros = s->shifted_both = s->ordata = 0;
+ s->float_shift = s->float_flags = 0;
+ s->false_zeros = s->neg_zeros = 0;
+ s->max_exp = 0;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t f = samples_l[i];
+ crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
+
+ if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
+ s->max_exp = get_exponent(f);
+ }
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t f;
+
+ f = samples_l[i];
+ crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
+ if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
+ s->max_exp = get_exponent(f);
+
+ f = samples_r[i];
+ crc = crc * 27 + get_mantissa(f) * 9 + get_exponent(f) * 3 + get_sign(f);
+
+ if (get_exponent(f) > s->max_exp && get_exponent(f) < 255)
+ s->max_exp = get_exponent(f);
+ }
+ }
+
+ s->crc_x = crc;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++)
+ process_float(s, &samples_l[i]);
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ process_float(s, &samples_l[i]);
+ process_float(s, &samples_r[i]);
+ }
+ }
+
+ s->float_max_exp = s->max_exp;
+
+ if (s->shifted_both)
+ s->float_flags |= FLOAT_SHIFT_SENT;
+ else if (s->shifted_ones && !s->shifted_zeros)
+ s->float_flags |= FLOAT_SHIFT_ONES;
+ else if (s->shifted_ones && s->shifted_zeros)
+ s->float_flags |= FLOAT_SHIFT_SAME;
+ else if (s->ordata && !(s->ordata & 1)) {
+ do {
+ s->float_shift++;
+ s->ordata >>= 1;
+ } while (!(s->ordata & 1));
+
+ if (s->flags & WV_MONO_DATA)
+ shift_mono(samples_l, nb_samples, s->float_shift);
+ else
+ shift_stereo(samples_l, samples_r, nb_samples, s->float_shift);
+ }
+
+ s->flags &= ~MAG_MASK;
+
+ while (s->ordata) {
+ s->flags += 1 << MAG_LSB;
+ s->ordata >>= 1;
+ }
+
+ if (s->false_zeros || s->neg_zeros)
+ s->float_flags |= FLOAT_ZEROS_SENT;
+
+ if (s->neg_zeros)
+ s->float_flags |= FLOAT_NEG_ZEROS;
+
+ return s->float_flags & (FLOAT_EXCEPTIONS | FLOAT_ZEROS_SENT |
+ FLOAT_SHIFT_SENT | FLOAT_SHIFT_SAME);
+}
+
+static void scan_int23(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ uint32_t magdata = 0, ordata = 0, xordata = 0, anddata = ~0;
+ int i, total_shift = 0;
+
+ s->int32_sent_bits = s->int32_zeros = s->int32_ones = s->int32_dups = 0;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t M = samples_l[i];
+
+ magdata |= (M < 0) ? ~M : M;
+ xordata |= M ^ -(M & 1);
+ anddata &= M;
+ ordata |= M;
+
+ if ((ordata & 1) && !(anddata & 1) && (xordata & 2))
+ return;
+ }
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t L = samples_l[i];
+ int32_t R = samples_r[i];
+
+ magdata |= (L < 0) ? ~L : L;
+ magdata |= (R < 0) ? ~R : R;
+ xordata |= L ^ -(L & 1);
+ xordata |= R ^ -(R & 1);
+ anddata &= L & R;
+ ordata |= L | R;
+
+ if ((ordata & 1) && !(anddata & 1) && (xordata & 2))
+ return;
+ }
+ }
+
+ s->flags &= ~MAG_MASK;
+
+ while (magdata) {
+ s->flags += 1 << MAG_LSB;
+ magdata >>= 1;
+ }
+
+ if (!(s->flags & MAG_MASK))
+ return;
+
+ if (!(ordata & 1)) {
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_zeros++;
+ total_shift++;
+ ordata >>= 1;
+ } while (!(ordata & 1));
+ } else if (anddata & 1) {
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_ones++;
+ total_shift++;
+ anddata >>= 1;
+ } while (anddata & 1);
+ } else if (!(xordata & 2)) {
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_dups++;
+ total_shift++;
+ xordata >>= 1;
+ } while (!(xordata & 2));
+ }
+
+ if (total_shift) {
+ s->flags |= WV_INT32_DATA;
+
+ if (s->flags & WV_MONO_DATA)
+ shift_mono(samples_l, nb_samples, total_shift);
+ else
+ shift_stereo(samples_l, samples_r, nb_samples, total_shift);
+ }
+}
+
+static int scan_int32(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ uint32_t magdata = 0, ordata = 0, xordata = 0, anddata = ~0;
+ uint32_t crc = 0xffffffffu;
+ int i, total_shift = 0;
+
+ s->int32_sent_bits = s->int32_zeros = s->int32_ones = s->int32_dups = 0;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t M = samples_l[i];
+
+ crc = crc * 9 + (M & 0xffff) * 3 + ((M >> 16) & 0xffff);
+ magdata |= (M < 0) ? ~M : M;
+ xordata |= M ^ -(M & 1);
+ anddata &= M;
+ ordata |= M;
+ }
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t L = samples_l[i];
+ int32_t R = samples_r[i];
+
+ crc = crc * 9 + (L & 0xffff) * 3 + ((L >> 16) & 0xffff);
+ crc = crc * 9 + (R & 0xffff) * 3 + ((R >> 16) & 0xffff);
+ magdata |= (L < 0) ? ~L : L;
+ magdata |= (R < 0) ? ~R : R;
+ xordata |= L ^ -(L & 1);
+ xordata |= R ^ -(R & 1);
+ anddata &= L & R;
+ ordata |= L | R;
+ }
+ }
+
+ s->crc_x = crc;
+ s->flags &= ~MAG_MASK;
+
+ while (magdata) {
+ s->flags += 1 << MAG_LSB;
+ magdata >>= 1;
+ }
+
+ if (!((s->flags & MAG_MASK) >> MAG_LSB)) {
+ s->flags &= ~WV_INT32_DATA;
+ return 0;
+ }
+
+ if (!(ordata & 1))
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_zeros++;
+ total_shift++;
+ ordata >>= 1;
+ } while (!(ordata & 1));
+ else if (anddata & 1)
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_ones++;
+ total_shift++;
+ anddata >>= 1;
+ } while (anddata & 1);
+ else if (!(xordata & 2))
+ do {
+ s->flags -= 1 << MAG_LSB;
+ s->int32_dups++;
+ total_shift++;
+ xordata >>= 1;
+ } while (!(xordata & 2));
+
+ if (((s->flags & MAG_MASK) >> MAG_LSB) > 23) {
+ s->int32_sent_bits = (uint8_t)(((s->flags & MAG_MASK) >> MAG_LSB) - 23);
+ total_shift += s->int32_sent_bits;
+ s->flags &= ~MAG_MASK;
+ s->flags += 23 << MAG_LSB;
+ }
+
+ if (total_shift) {
+ s->flags |= WV_INT32_DATA;
+
+ if (s->flags & WV_MONO_DATA)
+ shift_mono(samples_l, nb_samples, total_shift);
+ else
+ shift_stereo(samples_l, samples_r, nb_samples, total_shift);
+ }
+
+ return s->int32_sent_bits;
+}
+
+static int8_t store_weight(int weight)
+{
+ weight = av_clip(weight, -1024, 1024);
+ if (weight > 0)
+ weight -= (weight + 64) >> 7;
+
+ return (weight + 4) >> 3;
+}
+
+static int restore_weight(int8_t weight)
+{
+ int result;
+
+ if ((result = (int) weight << 3) > 0)
+ result += (result + 64) >> 7;
+
+ return result;
+}
+
+static int log2s(int32_t value)
+{
+ return (value < 0) ? -wp_log2(-value) : wp_log2(value);
+}
+
+static void decorr_mono(int32_t *in_samples, int32_t *out_samples,
+ int nb_samples, struct Decorr *dpp, int dir)
+{
+ int m = 0, i;
+
+ dpp->sumA = 0;
+
+ if (dir < 0) {
+ out_samples += (nb_samples - 1);
+ in_samples += (nb_samples - 1);
+ }
+
+ dpp->weightA = restore_weight(store_weight(dpp->weightA));
+
+ for (i = 0; i < MAX_TERM; i++)
+ dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
+
+ if (dpp->value > MAX_TERM) {
+ while (nb_samples--) {
+ int32_t left, sam_A;
+
+ sam_A = ((3 - (dpp->value & 1)) * dpp->samplesA[0] - dpp->samplesA[1]) >> !(dpp->value & 1);
+
+ dpp->samplesA[1] = dpp->samplesA[0];
+ dpp->samplesA[0] = left = in_samples[0];
+
+ left -= APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam_A, left);
+ dpp->sumA += dpp->weightA;
+ out_samples[0] = left;
+ in_samples += dir;
+ out_samples += dir;
+ }
+ } else if (dpp->value > 0) {
+ while (nb_samples--) {
+ int k = (m + dpp->value) & (MAX_TERM - 1);
+ int32_t left, sam_A;
+
+ sam_A = dpp->samplesA[m];
+ dpp->samplesA[k] = left = in_samples[0];
+ m = (m + 1) & (MAX_TERM - 1);
+
+ left -= APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam_A, left);
+ dpp->sumA += dpp->weightA;
+ out_samples[0] = left;
+ in_samples += dir;
+ out_samples += dir;
+ }
+ }
+
+ if (m && dpp->value > 0 && dpp->value <= MAX_TERM) {
+ int32_t temp_A[MAX_TERM];
+
+ memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
+
+ for (i = 0; i < MAX_TERM; i++) {
+ dpp->samplesA[i] = temp_A[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+}
+
+static void reverse_mono_decorr(struct Decorr *dpp)
+{
+ if (dpp->value > MAX_TERM) {
+ int32_t sam_A;
+
+ if (dpp->value & 1)
+ sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ else
+ sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
+
+ dpp->samplesA[1] = dpp->samplesA[0];
+ dpp->samplesA[0] = sam_A;
+
+ if (dpp->value & 1)
+ sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ else
+ sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
+
+ dpp->samplesA[1] = sam_A;
+ } else if (dpp->value > 1) {
+ int i, j, k;
+
+ for (i = 0, j = dpp->value - 1, k = 0; k < dpp->value / 2; i++, j--, k++) {
+ i &= (MAX_TERM - 1);
+ j &= (MAX_TERM - 1);
+ dpp->samplesA[i] ^= dpp->samplesA[j];
+ dpp->samplesA[j] ^= dpp->samplesA[i];
+ dpp->samplesA[i] ^= dpp->samplesA[j];
+ }
+ }
+}
+
+static uint32_t log2sample(uint32_t v, int limit, uint32_t *result)
+{
+ uint32_t dbits;
+
+ if ((v += v >> 9) < (1 << 8)) {
+ dbits = nbits_table[v];
+ result += (dbits << 8) + wp_log2_table[(v << (9 - dbits)) & 0xff];
+ } else {
+ if (v < (1L << 16))
+ dbits = nbits_table[v >> 8] + 8;
+ else if (v < (1L << 24))
+ dbits = nbits_table[v >> 16] + 16;
+ else
+ dbits = nbits_table[v >> 24] + 24;
+
+ result += dbits = (dbits << 8) + wp_log2_table[(v >> (dbits - 9)) & 0xff];
+
+ if (limit && dbits >= limit)
+ return 1;
+ }
+
+ return 0;
+}
+
+static uint32_t log2mono(int32_t *samples, int nb_samples, int limit)
+{
+ uint32_t result = 0;
+ while (nb_samples--) {
+ if (log2sample(abs(*samples++), limit, &result))
+ return UINT32_MAX;
+ }
+ return result;
+}
+
+static uint32_t log2stereo(int32_t *samples_l, int32_t *samples_r,
+ int nb_samples, int limit)
+{
+ uint32_t result = 0;
+ while (nb_samples--) {
+ if (log2sample(abs(*samples_l++), limit, &result) ||
+ log2sample(abs(*samples_r++), limit, &result))
+ return UINT32_MAX;
+ }
+ return result;
+}
+
+static void decorr_mono_buffer(int32_t *samples, int32_t *outsamples,
+ int nb_samples, struct Decorr *dpp,
+ int tindex)
+{
+ struct Decorr dp, *dppi = dpp + tindex;
+ int delta = dppi->delta, pre_delta, term = dppi->value;
+
+ if (delta == 7)
+ pre_delta = 7;
+ else if (delta < 2)
+ pre_delta = 3;
+ else
+ pre_delta = delta + 1;
+
+ CLEAR(dp);
+ dp.value = term;
+ dp.delta = pre_delta;
+ decorr_mono(samples, outsamples, FFMIN(2048, nb_samples), &dp, -1);
+ dp.delta = delta;
+
+ if (tindex == 0)
+ reverse_mono_decorr(&dp);
+ else
+ CLEAR(dp.samplesA);
+
+ memcpy(dppi->samplesA, dp.samplesA, sizeof(dp.samplesA));
+ dppi->weightA = dp.weightA;
+
+ if (delta == 0) {
+ dp.delta = 1;
+ decorr_mono(samples, outsamples, nb_samples, &dp, 1);
+ dp.delta = 0;
+ memcpy(dp.samplesA, dppi->samplesA, sizeof(dp.samplesA));
+ dppi->weightA = dp.weightA = dp.sumA / nb_samples;
+ }
+
+ decorr_mono(samples, outsamples, nb_samples, &dp, 1);
+}
+
+static void recurse_mono(WavPackEncodeContext *s, WavPackExtraInfo *info,
+ int depth, int delta, uint32_t input_bits)
+{
+ int term, branches = s->num_branches - depth;
+ int32_t *samples, *outsamples;
+ uint32_t term_bits[22], bits;
+
+ if (branches < 1 || depth + 1 == info->nterms)
+ branches = 1;
+
+ CLEAR(term_bits);
+ samples = s->sampleptrs[depth][0];
+ outsamples = s->sampleptrs[depth + 1][0];
+
+ for (term = 1; term <= 18; term++) {
+ if (term == 17 && branches == 1 && depth + 1 < info->nterms)
+ continue;
+
+ if (term > 8 && term < 17)
+ continue;
+
+ if (!s->extra_flags && (term > 4 && term < 17))
+ continue;
+
+ info->dps[depth].value = term;
+ info->dps[depth].delta = delta;
+ decorr_mono_buffer(samples, outsamples, s->block_samples, info->dps, depth);
+ bits = log2mono(outsamples, s->block_samples, info->log_limit);
+
+ if (bits < info->best_bits) {
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * (depth + 1));
+ memcpy(s->sampleptrs[info->nterms + 1][0],
+ s->sampleptrs[depth + 1][0], s->block_samples * 4);
+ }
+
+ term_bits[term + 3] = bits;
+ }
+
+ while (depth + 1 < info->nterms && branches--) {
+ uint32_t local_best_bits = input_bits;
+ int best_term = 0, i;
+
+ for (i = 0; i < 22; i++)
+ if (term_bits[i] && term_bits[i] < local_best_bits) {
+ local_best_bits = term_bits[i];
+ best_term = i - 3;
+ }
+
+ if (!best_term)
+ break;
+
+ term_bits[best_term + 3] = 0;
+
+ info->dps[depth].value = best_term;
+ info->dps[depth].delta = delta;
+ decorr_mono_buffer(samples, outsamples, s->block_samples, info->dps, depth);
+
+ recurse_mono(s, info, depth + 1, delta, local_best_bits);
+ }
+}
+
+static void sort_mono(WavPackEncodeContext *s, WavPackExtraInfo *info)
+{
+ int reversed = 1;
+ uint32_t bits;
+
+ while (reversed) {
+ int ri, i;
+
+ memcpy(info->dps, s->decorr_passes, sizeof(s->decorr_passes));
+ reversed = 0;
+
+ for (ri = 0; ri < info->nterms && s->decorr_passes[ri].value; ri++) {
+
+ if (ri + 1 >= info->nterms || !s->decorr_passes[ri+1].value)
+ break;
+
+ if (s->decorr_passes[ri].value == s->decorr_passes[ri+1].value) {
+ decorr_mono_buffer(s->sampleptrs[ri][0], s->sampleptrs[ri+1][0],
+ s->block_samples, info->dps, ri);
+ continue;
+ }
+
+ info->dps[ri ] = s->decorr_passes[ri+1];
+ info->dps[ri+1] = s->decorr_passes[ri ];
+
+ for (i = ri; i < info->nterms && s->decorr_passes[i].value; i++)
+ decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
+ s->block_samples, info->dps, i);
+
+ bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
+ if (bits < info->best_bits) {
+ reversed = 1;
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
+ s->block_samples * 4);
+ } else {
+ info->dps[ri ] = s->decorr_passes[ri];
+ info->dps[ri+1] = s->decorr_passes[ri+1];
+ decorr_mono_buffer(s->sampleptrs[ri][0], s->sampleptrs[ri+1][0],
+ s->block_samples, info->dps, ri);
+ }
+ }
+ }
+}
+
+static void delta_mono(WavPackEncodeContext *s, WavPackExtraInfo *info)
+{
+ int lower = 0, delta, d;
+ uint32_t bits;
+
+ if (!s->decorr_passes[0].value)
+ return;
+ delta = s->decorr_passes[0].delta;
+
+ for (d = delta - 1; d >= 0; d--) {
+ int i;
+
+ for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
+ info->dps[i].value = s->decorr_passes[i].value;
+ info->dps[i].delta = d;
+ decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
+ s->block_samples, info->dps, i);
+ }
+
+ bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
+ if (bits >= info->best_bits)
+ break;
+
+ lower = 1;
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
+ s->block_samples * 4);
+ }
+
+ for (d = delta + 1; !lower && d <= 7; d++) {
+ int i;
+
+ for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
+ info->dps[i].value = s->decorr_passes[i].value;
+ info->dps[i].delta = d;
+ decorr_mono_buffer(s->sampleptrs[i][0], s->sampleptrs[i+1][0],
+ s->block_samples, info->dps, i);
+ }
+
+ bits = log2mono(s->sampleptrs[i][0], s->block_samples, info->log_limit);
+ if (bits >= info->best_bits)
+ break;
+
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
+ s->block_samples * 4);
+ }
+}
+
+static int allocate_buffers2(WavPackEncodeContext *s, int nterms)
+{
+ int i;
+
+ for (i = 0; i < nterms + 2; i++) {
+ av_fast_padded_malloc(&s->sampleptrs[i][0], &s->sampleptrs_size[i][0],
+ s->block_samples * 4);
+ if (!s->sampleptrs[i][0])
+ return AVERROR(ENOMEM);
+ if (!(s->flags & WV_MONO_DATA)) {
+ av_fast_padded_malloc(&s->sampleptrs[i][1], &s->sampleptrs_size[i][1],
+ s->block_samples * 4);
+ if (!s->sampleptrs[i][1])
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ return 0;
+}
+
+static int allocate_buffers(WavPackEncodeContext *s)
+{
+ int i;
+
+ for (i = 0; i < 2; i++) {
+ av_fast_padded_malloc(&s->best_buffer[0], &s->best_buffer_size[0],
+ s->block_samples * 4);
+ if (!s->best_buffer[0])
+ return AVERROR(ENOMEM);
+
+ av_fast_padded_malloc(&s->temp_buffer[i][0], &s->temp_buffer_size[i][0],
+ s->block_samples * 4);
+ if (!s->temp_buffer[i][0])
+ return AVERROR(ENOMEM);
+ if (!(s->flags & WV_MONO_DATA)) {
+ av_fast_padded_malloc(&s->best_buffer[1], &s->best_buffer_size[1],
+ s->block_samples * 4);
+ if (!s->best_buffer[1])
+ return AVERROR(ENOMEM);
+
+ av_fast_padded_malloc(&s->temp_buffer[i][1], &s->temp_buffer_size[i][1],
+ s->block_samples * 4);
+ if (!s->temp_buffer[i][1])
+ return AVERROR(ENOMEM);
+ }
+ }
+
+ return 0;
+}
+
+static void analyze_mono(WavPackEncodeContext *s, int32_t *samples, int do_samples)
+{
+ WavPackExtraInfo info;
+ int i;
+
+ info.log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
+ info.log_limit = FFMIN(6912, info.log_limit);
+
+ info.nterms = s->num_terms;
+
+ if (allocate_buffers2(s, s->num_terms))
+ return;
+
+ memcpy(info.dps, s->decorr_passes, sizeof(info.dps));
+ memcpy(s->sampleptrs[0][0], samples, s->block_samples * 4);
+
+ for (i = 0; i < info.nterms && info.dps[i].value; i++)
+ decorr_mono(s->sampleptrs[i][0], s->sampleptrs[i + 1][0],
+ s->block_samples, info.dps + i, 1);
+
+ info.best_bits = log2mono(s->sampleptrs[info.nterms][0], s->block_samples, 0) * 1;
+ memcpy(s->sampleptrs[info.nterms + 1][0], s->sampleptrs[i][0], s->block_samples * 4);
+
+ if (s->extra_flags & EXTRA_BRANCHES)
+ recurse_mono(s, &info, 0, (int) floor(s->delta_decay + 0.5),
+ log2mono(s->sampleptrs[0][0], s->block_samples, 0));
+
+ if (s->extra_flags & EXTRA_SORT_FIRST)
+ sort_mono(s, &info);
+
+ if (s->extra_flags & EXTRA_TRY_DELTAS) {
+ delta_mono(s, &info);
+
+ if ((s->extra_flags & EXTRA_ADJUST_DELTAS) && s->decorr_passes[0].value)
+ s->delta_decay = (float)((s->delta_decay * 2.0 + s->decorr_passes[0].delta) / 3.0);
+ else
+ s->delta_decay = 2.0;
+ }
+
+ if (s->extra_flags & EXTRA_SORT_LAST)
+ sort_mono(s, &info);
+
+ if (do_samples)
+ memcpy(samples, s->sampleptrs[info.nterms + 1][0], s->block_samples * 4);
+
+ for (i = 0; i < info.nterms; i++)
+ if (!s->decorr_passes[i].value)
+ break;
+
+ s->num_terms = i;
+}
+
+static void scan_word(WavPackEncodeContext *s, WvChannel *c,
+ int32_t *samples, int nb_samples, int dir)
+{
+ if (dir < 0)
+ samples += nb_samples - 1;
+
+ while (nb_samples--) {
+ uint32_t low, value = labs(samples[0]);
+
+ if (value < GET_MED(0)) {
+ DEC_MED(0);
+ } else {
+ low = GET_MED(0);
+ INC_MED(0);
+
+ if (value - low < GET_MED(1)) {
+ DEC_MED(1);
+ } else {
+ low += GET_MED(1);
+ INC_MED(1);
+
+ if (value - low < GET_MED(2)) {
+ DEC_MED(2);
+ } else {
+ INC_MED(2);
+ }
+ }
+ }
+ samples += dir;
+ }
+}
+
+static int wv_mono(WavPackEncodeContext *s, int32_t *samples,
+ int no_history, int do_samples)
+{
+ struct Decorr temp_decorr_pass, save_decorr_passes[MAX_TERMS] = {{0}};
+ int nb_samples = s->block_samples;
+ int buf_size = sizeof(int32_t) * nb_samples;
+ uint32_t best_size = UINT32_MAX, size;
+ int log_limit, pi, i, ret;
+
+ for (i = 0; i < nb_samples; i++)
+ if (samples[i])
+ break;
+
+ if (i == nb_samples) {
+ CLEAR(s->decorr_passes);
+ CLEAR(s->w);
+ s->num_terms = 0;
+ return 0;
+ }
+
+ log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
+ log_limit = FFMIN(6912, log_limit);
+
+ if ((ret = allocate_buffers(s)) < 0)
+ return ret;
+
+ if (no_history || s->num_passes >= 7)
+ s->best_decorr = s->mask_decorr = 0;
+
+ for (pi = 0; pi < s->num_passes;) {
+ const WavPackDecorrSpec *wpds;
+ int nterms, c, j;
+
+ if (!pi) {
+ c = s->best_decorr;
+ } else {
+ if (s->mask_decorr == 0)
+ c = 0;
+ else
+ c = (s->best_decorr & (s->mask_decorr - 1)) | s->mask_decorr;
+
+ if (c == s->best_decorr) {
+ s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
+ continue;
+ }
+ }
+
+ wpds = &s->decorr_specs[c];
+ nterms = decorr_filter_nterms[s->decorr_filter];
+
+ while (1) {
+ memcpy(s->temp_buffer[0][0], samples, buf_size);
+ CLEAR(save_decorr_passes);
+
+ for (j = 0; j < nterms; j++) {
+ CLEAR(temp_decorr_pass);
+ temp_decorr_pass.delta = wpds->delta;
+ temp_decorr_pass.value = wpds->terms[j];
+
+ if (temp_decorr_pass.value < 0)
+ temp_decorr_pass.value = 1;
+
+ decorr_mono(s->temp_buffer[j&1][0], s->temp_buffer[~j&1][0],
+ FFMIN(nb_samples, 2048), &temp_decorr_pass, -1);
+
+ if (j) {
+ CLEAR(temp_decorr_pass.samplesA);
+ } else {
+ reverse_mono_decorr(&temp_decorr_pass);
+ }
+
+ memcpy(save_decorr_passes + j, &temp_decorr_pass, sizeof(struct Decorr));
+ decorr_mono(s->temp_buffer[j&1][0], s->temp_buffer[~j&1][0],
+ nb_samples, &temp_decorr_pass, 1);
+ }
+
+ size = log2mono(s->temp_buffer[j&1][0], nb_samples, log_limit);
+ if (size != UINT32_MAX || !nterms)
+ break;
+ nterms >>= 1;
+ }
+
+ if (size < best_size) {
+ memcpy(s->best_buffer[0], s->temp_buffer[j&1][0], buf_size);
+ memcpy(s->decorr_passes, save_decorr_passes, sizeof(struct Decorr) * MAX_TERMS);
+ s->num_terms = nterms;
+ s->best_decorr = c;
+ best_size = size;
+ }
+
+ if (pi++)
+ s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
+ }
+
+ if (s->extra_flags)
+ analyze_mono(s, samples, do_samples);
+ else if (do_samples)
+ memcpy(samples, s->best_buffer[0], buf_size);
+
+ if (no_history || s->extra_flags) {
+ CLEAR(s->w);
+ scan_word(s, &s->w.c[0], s->best_buffer[0], nb_samples, -1);
+ }
+ return 0;
+}
+
+static void decorr_stereo(int32_t *in_left, int32_t *in_right,
+ int32_t *out_left, int32_t *out_right,
+ int nb_samples, struct Decorr *dpp, int dir)
+{
+ int m = 0, i;
+
+ dpp->sumA = dpp->sumB = 0;
+
+ if (dir < 0) {
+ out_left += nb_samples - 1;
+ out_right += nb_samples - 1;
+ in_left += nb_samples - 1;
+ in_right += nb_samples - 1;
+ }
+
+ dpp->weightA = restore_weight(store_weight(dpp->weightA));
+ dpp->weightB = restore_weight(store_weight(dpp->weightB));
+
+ for (i = 0; i < MAX_TERM; i++) {
+ dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
+ dpp->samplesB[i] = wp_exp2(log2s(dpp->samplesB[i]));
+ }
+
+ switch (dpp->value) {
+ case 2:
+ while (nb_samples--) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0];
+ dpp->samplesA[0] = dpp->samplesA[1];
+ out_left[0] = tmp = (dpp->samplesA[1] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+ dpp->sumA += dpp->weightA;
+
+ sam = dpp->samplesB[0];
+ dpp->samplesB[0] = dpp->samplesB[1];
+ out_right[0] = tmp = (dpp->samplesB[1] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ dpp->sumB += dpp->weightB;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ case 17:
+ while (nb_samples--) {
+ int32_t sam, tmp;
+
+ sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ dpp->samplesA[1] = dpp->samplesA[0];
+ out_left[0] = tmp = (dpp->samplesA[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+ dpp->sumA += dpp->weightA;
+
+ sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ dpp->samplesB[1] = dpp->samplesB[0];
+ out_right[0] = tmp = (dpp->samplesB[0] = in_right[0]) - APPLY_WEIGHT (dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ dpp->sumB += dpp->weightB;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ case 18:
+ while (nb_samples--) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
+ dpp->samplesA[1] = dpp->samplesA[0];
+ out_left[0] = tmp = (dpp->samplesA[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+ dpp->sumA += dpp->weightA;
+
+ sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
+ dpp->samplesB[1] = dpp->samplesB[0];
+ out_right[0] = tmp = (dpp->samplesB[0] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ dpp->sumB += dpp->weightB;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ default: {
+ int k = dpp->value & (MAX_TERM - 1);
+
+ while (nb_samples--) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[m];
+ out_left[0] = tmp = (dpp->samplesA[k] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+ dpp->sumA += dpp->weightA;
+
+ sam = dpp->samplesB[m];
+ out_right[0] = tmp = (dpp->samplesB[k] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ dpp->sumB += dpp->weightB;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ m = (m + 1) & (MAX_TERM - 1);
+ k = (k + 1) & (MAX_TERM - 1);
+ }
+
+ if (m) {
+ int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
+ int k;
+
+ memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
+ memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
+
+ for (k = 0; k < MAX_TERM; k++) {
+ dpp->samplesA[k] = temp_A[m];
+ dpp->samplesB[k] = temp_B[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+ break;
+ }
+ case -1:
+ while (nb_samples--) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ out_left[0] = tmp = (sam_B = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ dpp->sumA += dpp->weightA;
+
+ out_right[0] = tmp = (dpp->samplesA[0] = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+ dpp->sumB += dpp->weightB;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ case -2:
+ while (nb_samples--) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_B = dpp->samplesB[0];
+ out_right[0] = tmp = (sam_A = in_right[0]) - APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+ dpp->sumB += dpp->weightB;
+
+ out_left[0] = tmp = (dpp->samplesB[0] = in_left[0]) - APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ dpp->sumA += dpp->weightA;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ case -3:
+ while (nb_samples--) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ sam_B = dpp->samplesB[0];
+
+ dpp->samplesA[0] = tmp = in_right[0];
+ out_right[0] = tmp -= APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+ dpp->sumB += dpp->weightB;
+
+ dpp->samplesB[0] = tmp = in_left[0];
+ out_left[0] = tmp -= APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ dpp->sumA += dpp->weightA;
+
+ in_left += dir;
+ out_left += dir;
+ in_right += dir;
+ out_right += dir;
+ }
+ break;
+ }
+}
+
+static void reverse_decorr(struct Decorr *dpp)
+{
+ if (dpp->value > MAX_TERM) {
+ int32_t sam_A, sam_B;
+
+ if (dpp->value & 1) {
+ sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ sam_B = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ } else {
+ sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
+ sam_B = (3 * dpp->samplesB[0] - dpp->samplesB[1]) >> 1;
+ }
+
+ dpp->samplesA[1] = dpp->samplesA[0];
+ dpp->samplesB[1] = dpp->samplesB[0];
+ dpp->samplesA[0] = sam_A;
+ dpp->samplesB[0] = sam_B;
+
+ if (dpp->value & 1) {
+ sam_A = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ sam_B = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ } else {
+ sam_A = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
+ sam_B = (3 * dpp->samplesB[0] - dpp->samplesB[1]) >> 1;
+ }
+
+ dpp->samplesA[1] = sam_A;
+ dpp->samplesB[1] = sam_B;
+ } else if (dpp->value > 1) {
+ int i, j, k;
+
+ for (i = 0, j = dpp->value - 1, k = 0; k < dpp->value / 2; i++, j--, k++) {
+ i &= (MAX_TERM - 1);
+ j &= (MAX_TERM - 1);
+ dpp->samplesA[i] ^= dpp->samplesA[j];
+ dpp->samplesA[j] ^= dpp->samplesA[i];
+ dpp->samplesA[i] ^= dpp->samplesA[j];
+ dpp->samplesB[i] ^= dpp->samplesB[j];
+ dpp->samplesB[j] ^= dpp->samplesB[i];
+ dpp->samplesB[i] ^= dpp->samplesB[j];
+ }
+ }
+}
+
+static void decorr_stereo_quick(int32_t *in_left, int32_t *in_right,
+ int32_t *out_left, int32_t *out_right,
+ int nb_samples, struct Decorr *dpp)
+{
+ int m = 0, i;
+
+ dpp->weightA = restore_weight(store_weight(dpp->weightA));
+ dpp->weightB = restore_weight(store_weight(dpp->weightB));
+
+ for (i = 0; i < MAX_TERM; i++) {
+ dpp->samplesA[i] = wp_exp2(log2s(dpp->samplesA[i]));
+ dpp->samplesB[i] = wp_exp2(log2s(dpp->samplesB[i]));
+ }
+
+ switch (dpp->value) {
+ case 2:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0];
+ dpp->samplesA[0] = dpp->samplesA[1];
+ out_left[i] = tmp = (dpp->samplesA[1] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[0];
+ dpp->samplesB[0] = dpp->samplesB[1];
+ out_right[i] = tmp = (dpp->samplesB[1] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ case 17:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ dpp->samplesA[1] = dpp->samplesA[0];
+ out_left[i] = tmp = (dpp->samplesA[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ dpp->samplesB[1] = dpp->samplesB[0];
+ out_right[i] = tmp = (dpp->samplesB[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ case 18:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
+ dpp->samplesA[1] = dpp->samplesA[0];
+ out_left[i] = tmp = (dpp->samplesA[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
+ dpp->samplesB[1] = dpp->samplesB[0];
+ out_right[i] = tmp = (dpp->samplesB[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ default: {
+ int k = dpp->value & (MAX_TERM - 1);
+
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[m];
+ out_left[i] = tmp = (dpp->samplesA[k] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[m];
+ out_right[i] = tmp = (dpp->samplesB[k] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+
+ m = (m + 1) & (MAX_TERM - 1);
+ k = (k + 1) & (MAX_TERM - 1);
+ }
+
+ if (m) {
+ int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
+ int k;
+
+ memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
+ memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
+
+ for (k = 0; k < MAX_TERM; k++) {
+ dpp->samplesA[k] = temp_A[m];
+ dpp->samplesB[k] = temp_B[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+ break;
+ }
+ case -1:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ out_left[i] = tmp = (sam_B = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+
+ out_right[i] = tmp = (dpp->samplesA[0] = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+ }
+ break;
+ case -2:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_B = dpp->samplesB[0];
+ out_right[i] = tmp = (sam_A = in_right[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ out_left[i] = tmp = (dpp->samplesB[0] = in_left[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ case -3:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ sam_B = dpp->samplesB[0];
+
+ dpp->samplesA[0] = tmp = in_right[i];
+ out_right[i] = tmp -= APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ dpp->samplesB[0] = tmp = in_left[i];
+ out_left[i] = tmp -= APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ }
+}
+
+static void decorr_stereo_buffer(WavPackExtraInfo *info,
+ int32_t *in_left, int32_t *in_right,
+ int32_t *out_left, int32_t *out_right,
+ int nb_samples, int tindex)
+{
+ struct Decorr dp = {0}, *dppi = info->dps + tindex;
+ int delta = dppi->delta, pre_delta;
+ int term = dppi->value;
+
+ if (delta == 7)
+ pre_delta = 7;
+ else if (delta < 2)
+ pre_delta = 3;
+ else
+ pre_delta = delta + 1;
+
+ dp.value = term;
+ dp.delta = pre_delta;
+ decorr_stereo(in_left, in_right, out_left, out_right,
+ FFMIN(2048, nb_samples), &dp, -1);
+ dp.delta = delta;
+
+ if (tindex == 0) {
+ reverse_decorr(&dp);
+ } else {
+ CLEAR(dp.samplesA);
+ CLEAR(dp.samplesB);
+ }
+
+ memcpy(dppi->samplesA, dp.samplesA, sizeof(dp.samplesA));
+ memcpy(dppi->samplesB, dp.samplesB, sizeof(dp.samplesB));
+ dppi->weightA = dp.weightA;
+ dppi->weightB = dp.weightB;
+
+ if (delta == 0) {
+ dp.delta = 1;
+ decorr_stereo(in_left, in_right, out_left, out_right, nb_samples, &dp, 1);
+ dp.delta = 0;
+ memcpy(dp.samplesA, dppi->samplesA, sizeof(dp.samplesA));
+ memcpy(dp.samplesB, dppi->samplesB, sizeof(dp.samplesB));
+ dppi->weightA = dp.weightA = dp.sumA / nb_samples;
+ dppi->weightB = dp.weightB = dp.sumB / nb_samples;
+ }
+
+ if (info->gt16bit)
+ decorr_stereo(in_left, in_right, out_left, out_right,
+ nb_samples, &dp, 1);
+ else
+ decorr_stereo_quick(in_left, in_right, out_left, out_right,
+ nb_samples, &dp);
+}
+
+static void sort_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info)
+{
+ int reversed = 1;
+ uint32_t bits;
+
+ while (reversed) {
+ int ri, i;
+
+ memcpy(info->dps, s->decorr_passes, sizeof(s->decorr_passes));
+ reversed = 0;
+
+ for (ri = 0; ri < info->nterms && s->decorr_passes[ri].value; ri++) {
+
+ if (ri + 1 >= info->nterms || !s->decorr_passes[ri+1].value)
+ break;
+
+ if (s->decorr_passes[ri].value == s->decorr_passes[ri+1].value) {
+ decorr_stereo_buffer(info,
+ s->sampleptrs[ri ][0], s->sampleptrs[ri ][1],
+ s->sampleptrs[ri+1][0], s->sampleptrs[ri+1][1],
+ s->block_samples, ri);
+ continue;
+ }
+
+ info->dps[ri ] = s->decorr_passes[ri+1];
+ info->dps[ri+1] = s->decorr_passes[ri ];
+
+ for (i = ri; i < info->nterms && s->decorr_passes[i].value; i++)
+ decorr_stereo_buffer(info,
+ s->sampleptrs[i ][0], s->sampleptrs[i ][1],
+ s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
+ s->block_samples, i);
+
+ bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
+ s->block_samples, info->log_limit);
+
+ if (bits < info->best_bits) {
+ reversed = 1;
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0],
+ s->sampleptrs[i][0], s->block_samples * 4);
+ memcpy(s->sampleptrs[info->nterms + 1][1],
+ s->sampleptrs[i][1], s->block_samples * 4);
+ } else {
+ info->dps[ri ] = s->decorr_passes[ri ];
+ info->dps[ri+1] = s->decorr_passes[ri+1];
+ decorr_stereo_buffer(info,
+ s->sampleptrs[ri ][0], s->sampleptrs[ri ][1],
+ s->sampleptrs[ri+1][0], s->sampleptrs[ri+1][1],
+ s->block_samples, ri);
+ }
+ }
+ }
+}
+
+static void delta_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info)
+{
+ int lower = 0, delta, d, i;
+ uint32_t bits;
+
+ if (!s->decorr_passes[0].value)
+ return;
+ delta = s->decorr_passes[0].delta;
+
+ for (d = delta - 1; d >= 0; d--) {
+ for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
+ info->dps[i].value = s->decorr_passes[i].value;
+ info->dps[i].delta = d;
+ decorr_stereo_buffer(info,
+ s->sampleptrs[i ][0], s->sampleptrs[i ][1],
+ s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
+ s->block_samples, i);
+ }
+
+ bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
+ s->block_samples, info->log_limit);
+ if (bits >= info->best_bits)
+ break;
+ lower = 1;
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[i][0],
+ s->block_samples * 4);
+ memcpy(s->sampleptrs[info->nterms + 1][1], s->sampleptrs[i][1],
+ s->block_samples * 4);
+ }
+
+ for (d = delta + 1; !lower && d <= 7; d++) {
+ for (i = 0; i < info->nterms && s->decorr_passes[i].value; i++) {
+ info->dps[i].value = s->decorr_passes[i].value;
+ info->dps[i].delta = d;
+ decorr_stereo_buffer(info,
+ s->sampleptrs[i ][0], s->sampleptrs[i ][1],
+ s->sampleptrs[i+1][0], s->sampleptrs[i+1][1],
+ s->block_samples, i);
+ }
+
+ bits = log2stereo(s->sampleptrs[i][0], s->sampleptrs[i][1],
+ s->block_samples, info->log_limit);
+
+ if (bits < info->best_bits) {
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * i);
+ memcpy(s->sampleptrs[info->nterms + 1][0],
+ s->sampleptrs[i][0], s->block_samples * 4);
+ memcpy(s->sampleptrs[info->nterms + 1][1],
+ s->sampleptrs[i][1], s->block_samples * 4);
+ }
+ else
+ break;
+ }
+}
+
+static void recurse_stereo(WavPackEncodeContext *s, WavPackExtraInfo *info,
+ int depth, int delta, uint32_t input_bits)
+{
+ int term, branches = s->num_branches - depth;
+ int32_t *in_left, *in_right, *out_left, *out_right;
+ uint32_t term_bits[22], bits;
+
+ if (branches < 1 || depth + 1 == info->nterms)
+ branches = 1;
+
+ CLEAR(term_bits);
+ in_left = s->sampleptrs[depth ][0];
+ in_right = s->sampleptrs[depth ][1];
+ out_left = s->sampleptrs[depth + 1][0];
+ out_right = s->sampleptrs[depth + 1][1];
+
+ for (term = -3; term <= 18; term++) {
+ if (!term || (term > 8 && term < 17))
+ continue;
+
+ if (term == 17 && branches == 1 && depth + 1 < info->nterms)
+ continue;
+
+ if (term == -1 || term == -2)
+ if (!(s->flags & WV_CROSS_DECORR))
+ continue;
+
+ if (!s->extra_flags && (term > 4 && term < 17))
+ continue;
+
+ info->dps[depth].value = term;
+ info->dps[depth].delta = delta;
+ decorr_stereo_buffer(info, in_left, in_right, out_left, out_right,
+ s->block_samples, depth);
+ bits = log2stereo(out_left, out_right, s->block_samples, info->log_limit);
+
+ if (bits < info->best_bits) {
+ info->best_bits = bits;
+ CLEAR(s->decorr_passes);
+ memcpy(s->decorr_passes, info->dps, sizeof(info->dps[0]) * (depth + 1));
+ memcpy(s->sampleptrs[info->nterms + 1][0], s->sampleptrs[depth + 1][0],
+ s->block_samples * 4);
+ memcpy(s->sampleptrs[info->nterms + 1][1], s->sampleptrs[depth + 1][1],
+ s->block_samples * 4);
+ }
+
+ term_bits[term + 3] = bits;
+ }
+
+ while (depth + 1 < info->nterms && branches--) {
+ uint32_t local_best_bits = input_bits;
+ int best_term = 0, i;
+
+ for (i = 0; i < 22; i++)
+ if (term_bits[i] && term_bits[i] < local_best_bits) {
+ local_best_bits = term_bits[i];
+ best_term = i - 3;
+ }
+
+ if (!best_term)
+ break;
+
+ term_bits[best_term + 3] = 0;
+
+ info->dps[depth].value = best_term;
+ info->dps[depth].delta = delta;
+ decorr_stereo_buffer(info, in_left, in_right, out_left, out_right,
+ s->block_samples, depth);
+
+ recurse_stereo(s, info, depth + 1, delta, local_best_bits);
+ }
+}
+
+static void analyze_stereo(WavPackEncodeContext *s,
+ int32_t *in_left, int32_t *in_right,
+ int do_samples)
+{
+ WavPackExtraInfo info;
+ int i;
+
+ info.gt16bit = ((s->flags & MAG_MASK) >> MAG_LSB) >= 16;
+
+ info.log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
+ info.log_limit = FFMIN(6912, info.log_limit);
+
+ info.nterms = s->num_terms;
+
+ if (allocate_buffers2(s, s->num_terms))
+ return;
+
+ memcpy(info.dps, s->decorr_passes, sizeof(info.dps));
+ memcpy(s->sampleptrs[0][0], in_left, s->block_samples * 4);
+ memcpy(s->sampleptrs[0][1], in_right, s->block_samples * 4);
+
+ for (i = 0; i < info.nterms && info.dps[i].value; i++)
+ if (info.gt16bit)
+ decorr_stereo(s->sampleptrs[i ][0], s->sampleptrs[i ][1],
+ s->sampleptrs[i + 1][0], s->sampleptrs[i + 1][1],
+ s->block_samples, info.dps + i, 1);
+ else
+ decorr_stereo_quick(s->sampleptrs[i ][0], s->sampleptrs[i ][1],
+ s->sampleptrs[i + 1][0], s->sampleptrs[i + 1][1],
+ s->block_samples, info.dps + i);
+
+ info.best_bits = log2stereo(s->sampleptrs[info.nterms][0], s->sampleptrs[info.nterms][1],
+ s->block_samples, 0);
+
+ memcpy(s->sampleptrs[info.nterms + 1][0], s->sampleptrs[i][0], s->block_samples * 4);
+ memcpy(s->sampleptrs[info.nterms + 1][1], s->sampleptrs[i][1], s->block_samples * 4);
+
+ if (s->extra_flags & EXTRA_BRANCHES)
+ recurse_stereo(s, &info, 0, (int) floor(s->delta_decay + 0.5),
+ log2stereo(s->sampleptrs[0][0], s->sampleptrs[0][1],
+ s->block_samples, 0));
+
+ if (s->extra_flags & EXTRA_SORT_FIRST)
+ sort_stereo(s, &info);
+
+ if (s->extra_flags & EXTRA_TRY_DELTAS) {
+ delta_stereo(s, &info);
+
+ if ((s->extra_flags & EXTRA_ADJUST_DELTAS) && s->decorr_passes[0].value)
+ s->delta_decay = (float)((s->delta_decay * 2.0 + s->decorr_passes[0].delta) / 3.0);
+ else
+ s->delta_decay = 2.0;
+ }
+
+ if (s->extra_flags & EXTRA_SORT_LAST)
+ sort_stereo(s, &info);
+
+ if (do_samples) {
+ memcpy(in_left, s->sampleptrs[info.nterms + 1][0], s->block_samples * 4);
+ memcpy(in_right, s->sampleptrs[info.nterms + 1][1], s->block_samples * 4);
+ }
+
+ for (i = 0; i < info.nterms; i++)
+ if (!s->decorr_passes[i].value)
+ break;
+
+ s->num_terms = i;
+}
+
+static int wv_stereo(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int no_history, int do_samples)
+{
+ struct Decorr temp_decorr_pass, save_decorr_passes[MAX_TERMS] = {{0}};
+ int nb_samples = s->block_samples, ret;
+ int buf_size = sizeof(int32_t) * nb_samples;
+ int log_limit, force_js = 0, force_ts = 0, got_js = 0, pi, i;
+ uint32_t best_size = UINT32_MAX, size;
+
+ for (i = 0; i < nb_samples; i++)
+ if (samples_l[i] || samples_r[i])
+ break;
+
+ if (i == nb_samples) {
+ s->flags &= ~((uint32_t) WV_JOINT_STEREO);
+ CLEAR(s->decorr_passes);
+ CLEAR(s->w);
+ s->num_terms = 0;
+ return 0;
+ }
+
+ log_limit = (((s->flags & MAG_MASK) >> MAG_LSB) + 4) * 256;
+ log_limit = FFMIN(6912, log_limit);
+
+ if (s->joint) {
+ force_js = s->joint > 0;
+ force_ts = s->joint < 0;
+ }
+
+ if ((ret = allocate_buffers(s)) < 0)
+ return ret;
+
+ if (no_history || s->num_passes >= 7)
+ s->best_decorr = s->mask_decorr = 0;
+
+ for (pi = 0; pi < s->num_passes;) {
+ const WavPackDecorrSpec *wpds;
+ int nterms, c, j;
+
+ if (!pi)
+ c = s->best_decorr;
+ else {
+ if (s->mask_decorr == 0)
+ c = 0;
+ else
+ c = (s->best_decorr & (s->mask_decorr - 1)) | s->mask_decorr;
+
+ if (c == s->best_decorr) {
+ s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
+ continue;
+ }
+ }
+
+ wpds = &s->decorr_specs[c];
+ nterms = decorr_filter_nterms[s->decorr_filter];
+
+ while (1) {
+ if (force_js || (wpds->joint_stereo && !force_ts)) {
+ if (!got_js) {
+ av_fast_padded_malloc(&s->js_left, &s->js_left_size, buf_size);
+ av_fast_padded_malloc(&s->js_right, &s->js_right_size, buf_size);
+ memcpy(s->js_left, samples_l, buf_size);
+ memcpy(s->js_right, samples_r, buf_size);
+
+ for (i = 0; i < nb_samples; i++)
+ s->js_right[i] += ((s->js_left[i] -= s->js_right[i]) >> 1);
+ got_js = 1;
+ }
+
+ memcpy(s->temp_buffer[0][0], s->js_left, buf_size);
+ memcpy(s->temp_buffer[0][1], s->js_right, buf_size);
+ } else {
+ memcpy(s->temp_buffer[0][0], samples_l, buf_size);
+ memcpy(s->temp_buffer[0][1], samples_r, buf_size);
+ }
+
+ CLEAR(save_decorr_passes);
+
+ for (j = 0; j < nterms; j++) {
+ CLEAR(temp_decorr_pass);
+ temp_decorr_pass.delta = wpds->delta;
+ temp_decorr_pass.value = wpds->terms[j];
+
+ if (temp_decorr_pass.value < 0 && !(s->flags & WV_CROSS_DECORR))
+ temp_decorr_pass.value = -3;
+
+ decorr_stereo(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
+ s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
+ FFMIN(2048, nb_samples), &temp_decorr_pass, -1);
+
+ if (j) {
+ CLEAR(temp_decorr_pass.samplesA);
+ CLEAR(temp_decorr_pass.samplesB);
+ } else {
+ reverse_decorr(&temp_decorr_pass);
+ }
+
+ memcpy(save_decorr_passes + j, &temp_decorr_pass, sizeof(struct Decorr));
+
+ if (((s->flags & MAG_MASK) >> MAG_LSB) >= 16)
+ decorr_stereo(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
+ s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
+ nb_samples, &temp_decorr_pass, 1);
+ else
+ decorr_stereo_quick(s->temp_buffer[ j&1][0], s->temp_buffer[ j&1][1],
+ s->temp_buffer[~j&1][0], s->temp_buffer[~j&1][1],
+ nb_samples, &temp_decorr_pass);
+ }
+
+ size = log2stereo(s->temp_buffer[j&1][0], s->temp_buffer[j&1][1],
+ nb_samples, log_limit);
+ if (size != UINT32_MAX || !nterms)
+ break;
+ nterms >>= 1;
+ }
+
+ if (size < best_size) {
+ memcpy(s->best_buffer[0], s->temp_buffer[j&1][0], buf_size);
+ memcpy(s->best_buffer[1], s->temp_buffer[j&1][1], buf_size);
+ memcpy(s->decorr_passes, save_decorr_passes, sizeof(struct Decorr) * MAX_TERMS);
+ s->num_terms = nterms;
+ s->best_decorr = c;
+ best_size = size;
+ }
+
+ if (pi++)
+ s->mask_decorr = s->mask_decorr ? ((s->mask_decorr << 1) & (s->num_decorrs - 1)) : 1;
+ }
+
+ if (force_js || (s->decorr_specs[s->best_decorr].joint_stereo && !force_ts))
+ s->flags |= WV_JOINT_STEREO;
+ else
+ s->flags &= ~((uint32_t) WV_JOINT_STEREO);
+
+ if (s->extra_flags) {
+ if (s->flags & WV_JOINT_STEREO) {
+ analyze_stereo(s, s->js_left, s->js_right, do_samples);
+
+ if (do_samples) {
+ memcpy(samples_l, s->js_left, buf_size);
+ memcpy(samples_r, s->js_right, buf_size);
+ }
+ } else
+ analyze_stereo(s, samples_l, samples_r, do_samples);
+ } else if (do_samples) {
+ memcpy(samples_l, s->best_buffer[0], buf_size);
+ memcpy(samples_r, s->best_buffer[1], buf_size);
+ }
+
+ if (s->extra_flags || no_history ||
+ s->joint_stereo != s->decorr_specs[s->best_decorr].joint_stereo) {
+ s->joint_stereo = s->decorr_specs[s->best_decorr].joint_stereo;
+ CLEAR(s->w);
+ scan_word(s, &s->w.c[0], s->best_buffer[0], nb_samples, -1);
+ scan_word(s, &s->w.c[1], s->best_buffer[1], nb_samples, -1);
+ }
+ return 0;
+}
+
+#define count_bits(av) ( \
+ (av) < (1 << 8) ? nbits_table[av] : \
+ ( \
+ (av) < (1L << 16) ? nbits_table[(av) >> 8] + 8 : \
+ ((av) < (1L << 24) ? nbits_table[(av) >> 16] + 16 : nbits_table[(av) >> 24] + 24) \
+ ) \
+)
+
+static void encode_flush(WavPackEncodeContext *s)
+{
+ WavPackWords *w = &s->w;
+ PutBitContext *pb = &s->pb;
+
+ if (w->zeros_acc) {
+ int cbits = count_bits(w->zeros_acc);
+
+ do {
+ if (cbits > 31) {
+ put_bits(pb, 31, 0x7FFFFFFF);
+ cbits -= 31;
+ } else {
+ put_bits(pb, cbits, (1 << cbits) - 1);
+ cbits = 0;
+ }
+ } while (cbits);
+
+ put_bits(pb, 1, 0);
+
+ while (w->zeros_acc > 1) {
+ put_bits(pb, 1, w->zeros_acc & 1);
+ w->zeros_acc >>= 1;
+ }
+
+ w->zeros_acc = 0;
+ }
+
+ if (w->holding_one) {
+ if (w->holding_one >= 16) {
+ int cbits;
+
+ put_bits(pb, 16, (1 << 16) - 1);
+ put_bits(pb, 1, 0);
+ w->holding_one -= 16;
+ cbits = count_bits(w->holding_one);
+
+ do {
+ if (cbits > 31) {
+ put_bits(pb, 31, 0x7FFFFFFF);
+ cbits -= 31;
+ } else {
+ put_bits(pb, cbits, (1 << cbits) - 1);
+ cbits = 0;
+ }
+ } while (cbits);
+
+ put_bits(pb, 1, 0);
+
+ while (w->holding_one > 1) {
+ put_bits(pb, 1, w->holding_one & 1);
+ w->holding_one >>= 1;
+ }
+
+ w->holding_zero = 0;
+ } else {
+ put_bits(pb, w->holding_one, (1 << w->holding_one) - 1);
+ }
+
+ w->holding_one = 0;
+ }
+
+ if (w->holding_zero) {
+ put_bits(pb, 1, 0);
+ w->holding_zero = 0;
+ }
+
+ if (w->pend_count) {
+ put_bits(pb, w->pend_count, w->pend_data);
+ w->pend_data = w->pend_count = 0;
+ }
+}
+
+static void wavpack_encode_sample(WavPackEncodeContext *s, WvChannel *c, int32_t sample)
+{
+ WavPackWords *w = &s->w;
+ uint32_t ones_count, low, high;
+ int sign = ((sample) < 0) ? 1 : 0;
+
+ if (s->w.c[0].median[0] < 2 && !s->w.holding_zero && s->w.c[1].median[0] < 2) {
+ if (w->zeros_acc) {
+ if (sample)
+ encode_flush(s);
+ else {
+ w->zeros_acc++;
+ return;
+ }
+ } else if (sample) {
+ put_bits(&s->pb, 1, 0);
+ } else {
+ CLEAR(s->w.c[0].median);
+ CLEAR(s->w.c[1].median);
+ w->zeros_acc = 1;
+ return;
+ }
+ }
+
+ if (sign)
+ sample = ~sample;
+
+ if (sample < (int32_t) GET_MED(0)) {
+ ones_count = low = 0;
+ high = GET_MED(0) - 1;
+ DEC_MED(0);
+ } else {
+ low = GET_MED(0);
+ INC_MED(0);
+
+ if (sample - low < GET_MED(1)) {
+ ones_count = 1;
+ high = low + GET_MED(1) - 1;
+ DEC_MED(1);
+ } else {
+ low += GET_MED(1);
+ INC_MED(1);
+
+ if (sample - low < GET_MED(2)) {
+ ones_count = 2;
+ high = low + GET_MED(2) - 1;
+ DEC_MED(2);
+ } else {
+ ones_count = 2 + (sample - low) / GET_MED(2);
+ low += (ones_count - 2) * GET_MED(2);
+ high = low + GET_MED(2) - 1;
+ INC_MED(2);
+ }
+ }
+ }
+
+ if (w->holding_zero) {
+ if (ones_count)
+ w->holding_one++;
+
+ encode_flush(s);
+
+ if (ones_count) {
+ w->holding_zero = 1;
+ ones_count--;
+ } else
+ w->holding_zero = 0;
+ } else
+ w->holding_zero = 1;
+
+ w->holding_one = ones_count * 2;
+
+ if (high != low) {
+ uint32_t maxcode = high - low, code = sample - low;
+ int bitcount = count_bits(maxcode);
+ uint32_t extras = (1 << bitcount) - maxcode - 1;
+
+ if (code < extras) {
+ w->pend_data |= code << w->pend_count;
+ w->pend_count += bitcount - 1;
+ } else {
+ w->pend_data |= ((code + extras) >> 1) << w->pend_count;
+ w->pend_count += bitcount - 1;
+ w->pend_data |= ((code + extras) & 1) << w->pend_count++;
+ }
+ }
+
+ w->pend_data |= ((int32_t) sign << w->pend_count++);
+
+ if (!w->holding_zero)
+ encode_flush(s);
+}
+
+static void pack_int32(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ const int sent_bits = s->int32_sent_bits;
+ int32_t value, mask = (1 << sent_bits) - 1;
+ PutBitContext *pb = &s->pb;
+ int i, pre_shift;
+
+ pre_shift = s->int32_zeros + s->int32_ones + s->int32_dups;
+
+ if (!sent_bits)
+ return;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++) {
+ value = (samples_l[i] >> pre_shift) & mask;
+ put_bits(pb, sent_bits, value);
+ }
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ value = (samples_l[i] >> pre_shift) & mask;
+ put_bits(pb, sent_bits, value);
+ value = (samples_r[i] >> pre_shift) & mask;
+ put_bits(pb, sent_bits, value);
+ }
+ }
+}
+
+static void pack_float_sample(WavPackEncodeContext *s, int32_t *sample)
+{
+ const int max_exp = s->float_max_exp;
+ PutBitContext *pb = &s->pb;
+ int32_t value, shift_count;
+
+ if (get_exponent(*sample) == 255) {
+ if (get_mantissa(*sample)) {
+ put_bits(pb, 1, 1);
+ put_bits(pb, 23, get_mantissa(*sample));
+ } else {
+ put_bits(pb, 1, 0);
+ }
+
+ value = 0x1000000;
+ shift_count = 0;
+ } else if (get_exponent(*sample)) {
+ shift_count = max_exp - get_exponent(*sample);
+ value = 0x800000 + get_mantissa(*sample);
+ } else {
+ shift_count = max_exp ? max_exp - 1 : 0;
+ value = get_mantissa(*sample);
+ }
+
+ if (shift_count < 25)
+ value >>= shift_count;
+ else
+ value = 0;
+
+ if (!value) {
+ if (s->float_flags & FLOAT_ZEROS_SENT) {
+ if (get_exponent(*sample) || get_mantissa(*sample)) {
+ put_bits(pb, 1, 1);
+ put_bits(pb, 23, get_mantissa(*sample));
+
+ if (max_exp >= 25)
+ put_bits(pb, 8, get_exponent(*sample));
+
+ put_bits(pb, 1, get_sign(*sample));
+ } else {
+ put_bits(pb, 1, 0);
+
+ if (s->float_flags & FLOAT_NEG_ZEROS)
+ put_bits(pb, 1, get_sign(*sample));
+ }
+ }
+ } else if (shift_count) {
+ if (s->float_flags & FLOAT_SHIFT_SENT) {
+ int32_t data = get_mantissa(*sample) & ((1 << shift_count) - 1);
+ put_bits(pb, shift_count, data);
+ } else if (s->float_flags & FLOAT_SHIFT_SAME) {
+ put_bits(pb, 1, get_mantissa(*sample) & 1);
+ }
+ }
+}
+
+static void pack_float(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ int i;
+
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++)
+ pack_float_sample(s, &samples_l[i]);
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ pack_float_sample(s, &samples_l[i]);
+ pack_float_sample(s, &samples_r[i]);
+ }
+ }
+}
+
+static void decorr_stereo_pass2(struct Decorr *dpp,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ int i, m, k;
+
+ switch (dpp->value) {
+ case 17:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ dpp->samplesA[1] = dpp->samplesA[0];
+ samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ dpp->samplesB[1] = dpp->samplesB[0];
+ samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ case 18:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
+ dpp->samplesA[1] = dpp->samplesA[0];
+ samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
+ dpp->samplesB[1] = dpp->samplesB[0];
+ samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ default:
+ for (m = 0, k = dpp->value & (MAX_TERM - 1), i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[m];
+ samples_l[i] = tmp = (dpp->samplesA[k] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[m];
+ samples_r[i] = tmp = (dpp->samplesB[k] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam);
+ UPDATE_WEIGHT(dpp->weightB, dpp->delta, sam, tmp);
+
+ m = (m + 1) & (MAX_TERM - 1);
+ k = (k + 1) & (MAX_TERM - 1);
+ }
+ if (m) {
+ int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
+
+ memcpy(temp_A, dpp->samplesA, sizeof (dpp->samplesA));
+ memcpy(temp_B, dpp->samplesB, sizeof (dpp->samplesB));
+
+ for (k = 0; k < MAX_TERM; k++) {
+ dpp->samplesA[k] = temp_A[m];
+ dpp->samplesB[k] = temp_B[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+ break;
+ case -1:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ samples_l[i] = tmp = (sam_B = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+
+ samples_r[i] = tmp = (dpp->samplesA[0] = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+ }
+ break;
+ case -2:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_B = dpp->samplesB[0];
+ samples_r[i] = tmp = (sam_A = samples_r[i]) - APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ samples_l[i] = tmp = (dpp->samplesB[0] = samples_l[i]) - APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ case -3:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ sam_B = dpp->samplesB[0];
+
+ dpp->samplesA[0] = tmp = samples_r[i];
+ samples_r[i] = tmp -= APPLY_WEIGHT(dpp->weightB, sam_B);
+ UPDATE_WEIGHT_CLIP(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ dpp->samplesB[0] = tmp = samples_l[i];
+ samples_l[i] = tmp -= APPLY_WEIGHT(dpp->weightA, sam_A);
+ UPDATE_WEIGHT_CLIP(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ }
+}
+
+#define update_weight_d2(weight, delta, source, result) \
+ if (source && result) \
+ weight -= (((source ^ result) >> 29) & 4) - 2;
+
+#define update_weight_clip_d2(weight, delta, source, result) \
+ if (source && result) { \
+ const int32_t s = (source ^ result) >> 31; \
+ if ((weight = (weight ^ s) + (2 - s)) > 1024) weight = 1024; \
+ weight = (weight ^ s) - s; \
+ }
+
+static void decorr_stereo_pass_id2(struct Decorr *dpp,
+ int32_t *samples_l, int32_t *samples_r,
+ int nb_samples)
+{
+ int i, m, k;
+
+ switch (dpp->value) {
+ case 17:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ dpp->samplesA[1] = dpp->samplesA[0];
+ samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = 2 * dpp->samplesB[0] - dpp->samplesB[1];
+ dpp->samplesB[1] = dpp->samplesB[0];
+ samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ case 18:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[0] + ((dpp->samplesA[0] - dpp->samplesA[1]) >> 1);
+ dpp->samplesA[1] = dpp->samplesA[0];
+ samples_l[i] = tmp = (dpp->samplesA[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[0] + ((dpp->samplesB[0] - dpp->samplesB[1]) >> 1);
+ dpp->samplesB[1] = dpp->samplesB[0];
+ samples_r[i] = tmp = (dpp->samplesB[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
+ }
+ break;
+ default:
+ for (m = 0, k = dpp->value & (MAX_TERM - 1), i = 0; i < nb_samples; i++) {
+ int32_t sam, tmp;
+
+ sam = dpp->samplesA[m];
+ samples_l[i] = tmp = (dpp->samplesA[k] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam);
+ update_weight_d2(dpp->weightA, dpp->delta, sam, tmp);
+
+ sam = dpp->samplesB[m];
+ samples_r[i] = tmp = (dpp->samplesB[k] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam);
+ update_weight_d2(dpp->weightB, dpp->delta, sam, tmp);
+
+ m = (m + 1) & (MAX_TERM - 1);
+ k = (k + 1) & (MAX_TERM - 1);
+ }
+
+ if (m) {
+ int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
+
+ memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
+ memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
+
+ for (k = 0; k < MAX_TERM; k++) {
+ dpp->samplesA[k] = temp_A[m];
+ dpp->samplesB[k] = temp_B[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+ break;
+ case -1:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ samples_l[i] = tmp = (sam_B = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
+
+ samples_r[i] = tmp = (dpp->samplesA[0] = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
+ }
+ break;
+ case -2:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_B = dpp->samplesB[0];
+ samples_r[i] = tmp = (sam_A = samples_r[i]) - APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ samples_l[i] = tmp = (dpp->samplesB[0] = samples_l[i]) - APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ case -3:
+ for (i = 0; i < nb_samples; i++) {
+ int32_t sam_A, sam_B, tmp;
+
+ sam_A = dpp->samplesA[0];
+ sam_B = dpp->samplesB[0];
+
+ dpp->samplesA[0] = tmp = samples_r[i];
+ samples_r[i] = tmp -= APPLY_WEIGHT_I(dpp->weightB, sam_B);
+ update_weight_clip_d2(dpp->weightB, dpp->delta, sam_B, tmp);
+
+ dpp->samplesB[0] = tmp = samples_l[i];
+ samples_l[i] = tmp -= APPLY_WEIGHT_I(dpp->weightA, sam_A);
+ update_weight_clip_d2(dpp->weightA, dpp->delta, sam_A, tmp);
+ }
+ break;
+ }
+}
+
+static void put_metadata_block(PutByteContext *pb, int flags, int size)
+{
+ if (size & 1)
+ flags |= WP_IDF_ODD;
+
+ bytestream2_put_byte(pb, flags);
+ bytestream2_put_byte(pb, (size + 1) >> 1);
+}
+
+static int wavpack_encode_block(WavPackEncodeContext *s,
+ int32_t *samples_l, int32_t *samples_r,
+ uint8_t *out, int out_size)
+{
+ int block_size, start, end, data_size, tcount, temp, m = 0;
+ int i, j, ret, got_extra = 0, nb_samples = s->block_samples;
+ uint32_t crc = 0xffffffffu;
+ struct Decorr *dpp;
+ PutByteContext pb;
+
+ if (!(s->flags & WV_MONO) && s->optimize_mono) {
+ int32_t lor = 0, diff = 0;
+
+ for (i = 0; i < nb_samples; i++) {
+ lor |= samples_l[i] | samples_r[i];
+ diff |= samples_l[i] - samples_r[i];
+
+ if (lor && diff)
+ break;
+ }
+
+ if (i == nb_samples && lor && !diff) {
+ s->flags &= ~(WV_JOINT_STEREO | WV_CROSS_DECORR);
+ s->flags |= WV_FALSE_STEREO;
+
+ if (!s->false_stereo) {
+ s->false_stereo = 1;
+ s->num_terms = 0;
+ CLEAR(s->w);
+ }
+ } else if (s->false_stereo) {
+ s->false_stereo = 0;
+ s->num_terms = 0;
+ CLEAR(s->w);
+ }
+ }
+
+ if (s->flags & SHIFT_MASK) {
+ int shift = (s->flags & SHIFT_MASK) >> SHIFT_LSB;
+ int mag = (s->flags & MAG_MASK) >> MAG_LSB;
+
+ if (s->flags & WV_MONO_DATA)
+ shift_mono(samples_l, nb_samples, shift);
+ else
+ shift_stereo(samples_l, samples_r, nb_samples, shift);
+
+ if ((mag -= shift) < 0)
+ s->flags &= ~MAG_MASK;
+ else
+ s->flags -= (1 << MAG_LSB) * shift;
+ }
+
+ if ((s->flags & WV_FLOAT_DATA) || (s->flags & MAG_MASK) >> MAG_LSB >= 24) {
+ av_fast_padded_malloc(&s->orig_l, &s->orig_l_size, sizeof(int32_t) * nb_samples);
+ av_fast_padded_malloc(&s->orig_r, &s->orig_r_size, sizeof(int32_t) * nb_samples);
+ memcpy(s->orig_l, samples_l, sizeof(int32_t) * nb_samples);
+ memcpy(s->orig_r, samples_r, sizeof(int32_t) * nb_samples);
+
+ if (s->flags & WV_FLOAT_DATA)
+ got_extra = scan_float(s, samples_l, samples_r, nb_samples);
+ else
+ got_extra = scan_int32(s, samples_l, samples_r, nb_samples);
+ s->num_terms = 0;
+ } else {
+ scan_int23(s, samples_l, samples_r, nb_samples);
+ if (s->shift != s->int32_zeros + s->int32_ones + s->int32_dups) {
+ s->shift = s->int32_zeros + s->int32_ones + s->int32_dups;
+ s->num_terms = 0;
+ }
+ }
+
+ if (!s->num_passes && !s->num_terms) {
+ s->num_passes = 1;
+
+ if (s->flags & WV_MONO_DATA)
+ ret = wv_mono(s, samples_l, 1, 0);
+ else
+ ret = wv_stereo(s, samples_l, samples_r, 1, 0);
+
+ s->num_passes = 0;
+ }
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++)
+ crc += (crc << 1) + samples_l[i];
+
+ if (s->num_passes)
+ ret = wv_mono(s, samples_l, !s->num_terms, 1);
+ } else {
+ for (i = 0; i < nb_samples; i++)
+ crc += (crc << 3) + (samples_l[i] << 1) + samples_l[i] + samples_r[i];
+
+ if (s->num_passes)
+ ret = wv_stereo(s, samples_l, samples_r, !s->num_terms, 1);
+ }
+ if (ret < 0)
+ return ret;
+
+ if (!s->ch_offset)
+ s->flags |= WV_INITIAL_BLOCK;
+
+ s->ch_offset += 1 + !(s->flags & WV_MONO);
+
+ if (s->ch_offset == s->avctx->channels)
+ s->flags |= WV_FINAL_BLOCK;
+
+ bytestream2_init_writer(&pb, out, out_size);
+ bytestream2_put_le32(&pb, MKTAG('w', 'v', 'p', 'k'));
+ bytestream2_put_le32(&pb, 0);
+ bytestream2_put_le16(&pb, 0x410);
+ bytestream2_put_le16(&pb, 0);
+ bytestream2_put_le32(&pb, 0);
+ bytestream2_put_le32(&pb, s->sample_index);
+ bytestream2_put_le32(&pb, nb_samples);
+ bytestream2_put_le32(&pb, s->flags);
+ bytestream2_put_le32(&pb, crc);
+
+ if (s->flags & WV_INITIAL_BLOCK &&
+ s->avctx->channel_layout != AV_CH_LAYOUT_MONO &&
+ s->avctx->channel_layout != AV_CH_LAYOUT_STEREO) {
+ put_metadata_block(&pb, WP_ID_CHANINFO, 5);
+ bytestream2_put_byte(&pb, s->avctx->channels);
+ bytestream2_put_le32(&pb, s->avctx->channel_layout);
+ bytestream2_put_byte(&pb, 0);
+ }
+
+ if ((s->flags & SRATE_MASK) == SRATE_MASK) {
+ put_metadata_block(&pb, WP_ID_SAMPLE_RATE, 3);
+ bytestream2_put_le24(&pb, s->avctx->sample_rate);
+ bytestream2_put_byte(&pb, 0);
+ }
+
+ put_metadata_block(&pb, WP_ID_DECTERMS, s->num_terms);
+ for (i = 0; i < s->num_terms; i++) {
+ struct Decorr *dpp = &s->decorr_passes[i];
+ bytestream2_put_byte(&pb, ((dpp->value + 5) & 0x1f) | ((dpp->delta << 5) & 0xe0));
+ }
+ if (s->num_terms & 1)
+ bytestream2_put_byte(&pb, 0);
+
+#define WRITE_DECWEIGHT(type) do { \
+ temp = store_weight(type); \
+ bytestream2_put_byte(&pb, temp); \
+ type = restore_weight(temp); \
+ } while (0)
+
+ bytestream2_put_byte(&pb, WP_ID_DECWEIGHTS);
+ bytestream2_put_byte(&pb, 0);
+ start = bytestream2_tell_p(&pb);
+ for (i = s->num_terms - 1; i >= 0; --i) {
+ struct Decorr *dpp = &s->decorr_passes[i];
+
+ if (store_weight(dpp->weightA) ||
+ (!(s->flags & WV_MONO_DATA) && store_weight(dpp->weightB)))
+ break;
+ }
+ tcount = i + 1;
+ for (i = 0; i < s->num_terms; i++) {
+ struct Decorr *dpp = &s->decorr_passes[i];
+ if (i < tcount) {
+ WRITE_DECWEIGHT(dpp->weightA);
+ if (!(s->flags & WV_MONO_DATA))
+ WRITE_DECWEIGHT(dpp->weightB);
+ } else {
+ dpp->weightA = dpp->weightB = 0;
+ }
+ }
+ end = bytestream2_tell_p(&pb);
+ out[start - 2] = WP_ID_DECWEIGHTS | (((end - start) & 1) ? WP_IDF_ODD: 0);
+ out[start - 1] = (end - start + 1) >> 1;
+ if ((end - start) & 1)
+ bytestream2_put_byte(&pb, 0);
+
+#define WRITE_DECSAMPLE(type) do { \
+ temp = log2s(type); \
+ type = wp_exp2(temp); \
+ bytestream2_put_le16(&pb, temp); \
+ } while (0)
+
+ bytestream2_put_byte(&pb, WP_ID_DECSAMPLES);
+ bytestream2_put_byte(&pb, 0);
+ start = bytestream2_tell_p(&pb);
+ for (i = 0; i < s->num_terms; i++) {
+ struct Decorr *dpp = &s->decorr_passes[i];
+ if (i == 0) {
+ if (dpp->value > MAX_TERM) {
+ WRITE_DECSAMPLE(dpp->samplesA[0]);
+ WRITE_DECSAMPLE(dpp->samplesA[1]);
+ if (!(s->flags & WV_MONO_DATA)) {
+ WRITE_DECSAMPLE(dpp->samplesB[0]);
+ WRITE_DECSAMPLE(dpp->samplesB[1]);
+ }
+ } else if (dpp->value < 0) {
+ WRITE_DECSAMPLE(dpp->samplesA[0]);
+ WRITE_DECSAMPLE(dpp->samplesB[0]);
+ } else {
+ for (j = 0; j < dpp->value; j++) {
+ WRITE_DECSAMPLE(dpp->samplesA[j]);
+ if (!(s->flags & WV_MONO_DATA))
+ WRITE_DECSAMPLE(dpp->samplesB[j]);
+ }
+ }
+ } else {
+ CLEAR(dpp->samplesA);
+ CLEAR(dpp->samplesB);
+ }
+ }
+ end = bytestream2_tell_p(&pb);
+ out[start - 1] = (end - start) >> 1;
+
+#define WRITE_CHAN_ENTROPY(chan) do { \
+ for (i = 0; i < 3; i++) { \
+ temp = wp_log2(s->w.c[chan].median[i]); \
+ bytestream2_put_le16(&pb, temp); \
+ s->w.c[chan].median[i] = wp_exp2(temp); \
+ } \
+ } while (0)
+
+ put_metadata_block(&pb, WP_ID_ENTROPY, 6 * (1 + (!(s->flags & WV_MONO_DATA))));
+ WRITE_CHAN_ENTROPY(0);
+ if (!(s->flags & WV_MONO_DATA))
+ WRITE_CHAN_ENTROPY(1);
+
+ if (s->flags & WV_FLOAT_DATA) {
+ put_metadata_block(&pb, WP_ID_FLOATINFO, 4);
+ bytestream2_put_byte(&pb, s->float_flags);
+ bytestream2_put_byte(&pb, s->float_shift);
+ bytestream2_put_byte(&pb, s->float_max_exp);
+ bytestream2_put_byte(&pb, 127);
+ }
+
+ if (s->flags & WV_INT32_DATA) {
+ put_metadata_block(&pb, WP_ID_INT32INFO, 4);
+ bytestream2_put_byte(&pb, s->int32_sent_bits);
+ bytestream2_put_byte(&pb, s->int32_zeros);
+ bytestream2_put_byte(&pb, s->int32_ones);
+ bytestream2_put_byte(&pb, s->int32_dups);
+ }
+
+ if (s->flags & WV_MONO_DATA && !s->num_passes) {
+ for (i = 0; i < nb_samples; i++) {
+ int32_t code = samples_l[i];
+
+ for (tcount = s->num_terms, dpp = s->decorr_passes; tcount--; dpp++) {
+ int32_t sam;
+
+ if (dpp->value > MAX_TERM) {
+ if (dpp->value & 1)
+ sam = 2 * dpp->samplesA[0] - dpp->samplesA[1];
+ else
+ sam = (3 * dpp->samplesA[0] - dpp->samplesA[1]) >> 1;
+
+ dpp->samplesA[1] = dpp->samplesA[0];
+ dpp->samplesA[0] = code;
+ } else {
+ sam = dpp->samplesA[m];
+ dpp->samplesA[(m + dpp->value) & (MAX_TERM - 1)] = code;
+ }
+
+ code -= APPLY_WEIGHT(dpp->weightA, sam);
+ UPDATE_WEIGHT(dpp->weightA, dpp->delta, sam, code);
+ }
+
+ m = (m + 1) & (MAX_TERM - 1);
+ samples_l[i] = code;
+ }
+ if (m) {
+ for (tcount = s->num_terms, dpp = s->decorr_passes; tcount--; dpp++)
+ if (dpp->value > 0 && dpp->value <= MAX_TERM) {
+ int32_t temp_A[MAX_TERM], temp_B[MAX_TERM];
+ int k;
+
+ memcpy(temp_A, dpp->samplesA, sizeof(dpp->samplesA));
+ memcpy(temp_B, dpp->samplesB, sizeof(dpp->samplesB));
+
+ for (k = 0; k < MAX_TERM; k++) {
+ dpp->samplesA[k] = temp_A[m];
+ dpp->samplesB[k] = temp_B[m];
+ m = (m + 1) & (MAX_TERM - 1);
+ }
+ }
+ }
+ } else if (!s->num_passes) {
+ if (s->flags & WV_JOINT_STEREO) {
+ for (i = 0; i < nb_samples; i++)
+ samples_r[i] += ((samples_l[i] -= samples_r[i]) >> 1);
+ }
+
+ for (i = 0; i < s->num_terms; i++) {
+ struct Decorr *dpp = &s->decorr_passes[i];
+ if (((s->flags & MAG_MASK) >> MAG_LSB) >= 16 || dpp->delta != 2)
+ decorr_stereo_pass2(dpp, samples_l, samples_r, nb_samples);
+ else
+ decorr_stereo_pass_id2(dpp, samples_l, samples_r, nb_samples);
+ }
+ }
+
+ bytestream2_put_byte(&pb, WP_ID_DATA | WP_IDF_LONG);
+ init_put_bits(&s->pb, pb.buffer + 3, bytestream2_get_bytes_left_p(&pb));
+ if (s->flags & WV_MONO_DATA) {
+ for (i = 0; i < nb_samples; i++)
+ wavpack_encode_sample(s, &s->w.c[0], s->samples[0][i]);
+ } else {
+ for (i = 0; i < nb_samples; i++) {
+ wavpack_encode_sample(s, &s->w.c[0], s->samples[0][i]);
+ wavpack_encode_sample(s, &s->w.c[1], s->samples[1][i]);
+ }
+ }
+ encode_flush(s);
+ flush_put_bits(&s->pb);
+ data_size = put_bits_count(&s->pb) >> 3;
+ bytestream2_put_le24(&pb, (data_size + 1) >> 1);
+ bytestream2_skip_p(&pb, data_size);
+ if (data_size & 1)
+ bytestream2_put_byte(&pb, 0);
+
+ if (got_extra) {
+ bytestream2_put_byte(&pb, WP_ID_EXTRABITS | WP_IDF_LONG);
+ init_put_bits(&s->pb, pb.buffer + 7, bytestream2_get_bytes_left_p(&pb));
+ if (s->flags & WV_FLOAT_DATA)
+ pack_float(s, s->orig_l, s->orig_r, nb_samples);
+ else
+ pack_int32(s, s->orig_l, s->orig_r, nb_samples);
+ flush_put_bits(&s->pb);
+ data_size = put_bits_count(&s->pb) >> 3;
+ bytestream2_put_le24(&pb, (data_size + 5) >> 1);
+ bytestream2_put_le32(&pb, s->crc_x);
+ bytestream2_skip_p(&pb, data_size);
+ if (data_size & 1)
+ bytestream2_put_byte(&pb, 0);
+ }
+
+ block_size = bytestream2_tell_p(&pb);
+ AV_WL32(out + 4, block_size - 8);
+
+ return block_size;
+}
+
+static void fill_buffer(WavPackEncodeContext *s,
+ const int8_t *src, int32_t *dst,
+ int nb_samples)
+{
+ int i;
+
+#define COPY_SAMPLES(type, offset, shift) do { \
+ const type *sptr = (const type *)src; \
+ for (i = 0; i < nb_samples; i++) \
+ dst[i] = (sptr[i] - offset) >> shift; \
+ } while (0)
+
+ switch (s->avctx->sample_fmt) {
+ case AV_SAMPLE_FMT_U8P:
+ COPY_SAMPLES(int8_t, 0x80, 0);
+ break;
+ case AV_SAMPLE_FMT_S16P:
+ COPY_SAMPLES(int16_t, 0, 0);
+ break;
+ case AV_SAMPLE_FMT_S32P:
+ if (s->avctx->bits_per_raw_sample <= 24) {
+ COPY_SAMPLES(int32_t, 0, 8);
+ break;
+ }
+ case AV_SAMPLE_FMT_FLTP:
+ memcpy(dst, src, nb_samples * 4);
+ }
+}
+
+static void set_samplerate(WavPackEncodeContext *s)
+{
+ int i;
+
+ for (i = 0; i < 15; i++) {
+ if (wv_rates[i] == s->avctx->sample_rate)
+ break;
+ }
+
+ s->flags = i << SRATE_LSB;
+}
+
+static int wavpack_encode_frame(AVCodecContext *avctx, AVPacket *avpkt,
+ const AVFrame *frame, int *got_packet_ptr)
+{
+ WavPackEncodeContext *s = avctx->priv_data;
+ int buf_size, ret;
+ uint8_t *buf;
+
+ s->block_samples = frame->nb_samples;
+ av_fast_padded_malloc(&s->samples[0], &s->samples_size[0],
+ sizeof(int32_t) * s->block_samples);
+ if (!s->samples[0])
+ return AVERROR(ENOMEM);
+ if (avctx->channels > 1) {
+ av_fast_padded_malloc(&s->samples[1], &s->samples_size[1],
+ sizeof(int32_t) * s->block_samples);
+ if (!s->samples[1])
+ return AVERROR(ENOMEM);
+ }
+
+ if ((ret = ff_alloc_packet2(avctx, avpkt, s->block_samples * avctx->channels * 8)) < 0)
+ return ret;
+ buf = avpkt->data;
+ buf_size = avpkt->size;
+
+ for (s->ch_offset = 0; s->ch_offset < avctx->channels;) {
+ set_samplerate(s);
+
+ switch (s->avctx->sample_fmt) {
+ case AV_SAMPLE_FMT_S16P: s->flags |= 1; break;
+ case AV_SAMPLE_FMT_S32P: s->flags |= 3 - (s->avctx->bits_per_raw_sample <= 24); break;
+ case AV_SAMPLE_FMT_FLTP: s->flags |= 3 | WV_FLOAT_DATA;
+ }
+
+ fill_buffer(s, frame->extended_data[s->ch_offset], s->samples[0], s->block_samples);
+ if (avctx->channels - s->ch_offset == 1) {
+ s->flags |= WV_MONO;
+ } else {
+ s->flags |= WV_CROSS_DECORR;
+ fill_buffer(s, frame->extended_data[s->ch_offset + 1], s->samples[1], s->block_samples);
+ }
+
+ s->flags += (1 << MAG_LSB) * ((s->flags & 3) * 8 + 7);
+
+ if ((ret = wavpack_encode_block(s, s->samples[0], s->samples[1],
+ buf, buf_size)) < 0)
+ return ret;
+
+ buf += ret;
+ buf_size -= ret;
+ }
+ s->sample_index += frame->nb_samples;
+
+ avpkt->pts = frame->pts;
+ avpkt->size = buf - avpkt->data;
+ avpkt->duration = ff_samples_to_time_base(avctx, frame->nb_samples);
+ *got_packet_ptr = 1;
+ return 0;
+}
+
+static av_cold int wavpack_encode_close(AVCodecContext *avctx)
+{
+ WavPackEncodeContext *s = avctx->priv_data;
+ int i;
+
+ for (i = 0; i < MAX_TERMS + 2; i++) {
+ av_freep(&s->sampleptrs[i][0]);
+ av_freep(&s->sampleptrs[i][1]);
+ s->sampleptrs_size[i][0] = s->sampleptrs_size[i][1] = 0;
+ }
+
+ for (i = 0; i < 2; i++) {
+ av_freep(&s->samples[i]);
+ s->samples_size[i] = 0;
+
+ av_freep(&s->best_buffer[i]);
+ s->best_buffer_size[i] = 0;
+
+ av_freep(&s->temp_buffer[i][0]);
+ av_freep(&s->temp_buffer[i][1]);
+ s->temp_buffer_size[i][0] = s->temp_buffer_size[i][1] = 0;
+ }
+
+ av_freep(&s->js_left);
+ av_freep(&s->js_right);
+ s->js_left_size = s->js_right_size = 0;
+
+ av_freep(&s->orig_l);
+ av_freep(&s->orig_r);
+ s->orig_l_size = s->orig_r_size = 0;
+
+ return 0;
+}
+
+#define OFFSET(x) offsetof(WavPackEncodeContext, x)
+#define FLAGS AV_OPT_FLAG_ENCODING_PARAM | AV_OPT_FLAG_AUDIO_PARAM
+static const AVOption options[] = {
+ { "joint_stereo", "", OFFSET(joint), AV_OPT_TYPE_INT, {.i64=0},-1, 1, FLAGS, "joint" },
+ { "on", "mid/side", 0, AV_OPT_TYPE_CONST, {.i64= 1}, 0, 0, FLAGS, "joint"},
+ { "off", "left/right", 0, AV_OPT_TYPE_CONST, {.i64=-1}, 0, 0, FLAGS, "joint"},
+ { "auto", NULL, 0, AV_OPT_TYPE_CONST, {.i64= 0}, 0, 0, FLAGS, "joint"},
+ { "optimize_mono", "", OFFSET(optimize_mono), AV_OPT_TYPE_INT, {.i64=0}, 0, 1, FLAGS, "opt_mono" },
+ { "on", NULL, 0, AV_OPT_TYPE_CONST, {.i64=1}, 0, 0, FLAGS, "opt_mono"},
+ { "off", NULL, 0, AV_OPT_TYPE_CONST, {.i64=0}, 0, 0, FLAGS, "opt_mono"},
+ { NULL },
+};
+
+static const AVClass wavpack_encoder_class = {
+ .class_name = "WavPack encoder",
+ .item_name = av_default_item_name,
+ .option = options,
+ .version = LIBAVUTIL_VERSION_INT,
+};
+
+AVCodec ff_wavpack_encoder = {
+ .name = "wavpack",
+ .long_name = NULL_IF_CONFIG_SMALL("WavPack"),
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_WAVPACK,
+ .priv_data_size = sizeof(WavPackEncodeContext),
+ .priv_class = &wavpack_encoder_class,
+ .init = wavpack_encode_init,
+ .encode2 = wavpack_encode_frame,
+ .close = wavpack_encode_close,
+ .capabilities = CODEC_CAP_SMALL_LAST_FRAME,
+ .sample_fmts = (const enum AVSampleFormat[]){ AV_SAMPLE_FMT_U8P,
+ AV_SAMPLE_FMT_S16P,
+ AV_SAMPLE_FMT_S32P,
+ AV_SAMPLE_FMT_FLTP,
+ AV_SAMPLE_FMT_NONE },
+};
diff --git a/libavcodec/wavpackenc.h b/libavcodec/wavpackenc.h
new file mode 100644
index 0000000..1582d68
--- /dev/null
+++ b/libavcodec/wavpackenc.h
@@ -0,0 +1,664 @@
+/*
+ * WavPack lossless audio encoder
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_WAVPACKENC_H
+#define AVCODEC_WAVPACKENC_H
+
+#include "wavpack.h"
+
+typedef struct WavPackDecorrSpec {
+ int8_t joint_stereo, delta, terms[MAX_TERMS+1];
+} WavPackDecorrSpec;
+
+static const WavPackDecorrSpec fast_specs[] = {
+ { 1, 2, { 18,17 } }, { 1, 1, { 17,17 } }, { 0, 2, { 18,17 } },
+ { 0, 1, { 17,17 } }, { 1, 3, { 1,18 } }, { 1, 1, { 17, 1 } },
+ { 0, 1, { 1,17 } }, { 0, 1, { -2,17 } }, { 0, 2, { -1,17 } },
+ { 1, 1, { 17, 2 } }, { 0, 3, { 18,18 } }, { 0, 1, { 17, 1 } },
+ { 1, 6, { 1, 2 } }, { 1, 1, { 17, 3 } }, { 0, 1, { -2, 3 } },
+ { 0, 1, { 2,17 } }, { 0, 1, { 18,-2 } }, { 0, 1, { -1,17 } },
+ { 0, 1, { 18,17 } }, { 0, 1, { 17, 2 } }, { 1, 2, { 18,-2 } },
+ { 1, 1, { 1,17 } }, { 0, 3, { 18, 2 } }, { 0, 1, { 17,-2 } },
+ { 0, 1, { 18,-2 } }, { 1, 2, { 17,-3 } }, { 0, 1, { 18, 3 } },
+ { 0, 1, { 18,18 } }, { 1, 1, { 1, 3 } }, { 1, 1, { 18, 3 } },
+ { 1, 1, { 1, 3 } }, { 0, 2, { 18,17 } }, { 1, 1, { 1,17 } },
+ { 1, 1, { 17, 3 } }, { 0, 3, { 18,17 } }, { 0, 1, { 18,18 } },
+ { 1, 1, { 1, 3 } }, { 1, 1, { 1,18 } }, { 0, 1, { 18,-2 } },
+ { 0, 2, { 18,17 } }, { 0, 1, { -1,18 } }, { 1, 1, { 17, 3 } },
+ { 0, 1, { 17, 2 } }, { 0, 1, { 17, 3 } }, { 1, 1, { 18, 2 } },
+ { 1, 1, { 17,-2 } }, { 0, 1, { 1,-2 } }, { 0, 2, { 18,17 } },
+ { 0, 1, { 17,-2 } }, { 1, 1, { 17,-2 } }, { 0, 1, { 18, 3 } },
+ { 0, 1, { 2,17 } }, { 1, 2, { 18,-3 } }, { 1, 2, { 1,18 } },
+ { 1, 2, { 18, 2 } }, { 0, 1, { 17,-1 } }, { 0, 1, { 17,-2 } },
+ { 1, 1, { 17,-2 } }, { 1, 1, { 1, 3 } }, { 0, 1, { 1,17 } },
+ { 1, 2, { 18,-2 } }, { 1, 2, { 17,-3 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 1, 1, { 17, 2 } }, { 1, 2, { 18,18 } },
+ { 0, 1, { 17, 2 } }, { 0, 1, { 18,17 } }, { 1, 1, { 1,17 } },
+ { 1, 1, { 17, 2 } }, { 0, 2, { 18,18 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 17,-3 } }, { 1, 6, { 1, 2 } }, { 0, 3, { 17,17 } },
+ { 0, 1, { 1,18 } }, { 0, 1, { 1,-2 } }, { 1, 1, { 17, 2 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 1, 1, { 18, 3 } },
+ { 1, 2, { 17,-3 } }, { 0, 1, { 17, 2 } }, { 0, 1, { 17, 3 } },
+ { 0, 1, { 18,-2 } }, { 1, 1, { 18,18 } }, { 1, 6, { 1, 2 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 1, { -1,17 } },
+ { 1, 1, { 18, 3 } }, { 0, 1, { 17,18 } }, { 1, 1, { 17, 3 } },
+ { 0, 1, { 18, 3 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 18, 2 } }, { 0, 1, { -2, 3 } }, { 0, 4, { 18,-1 } },
+ { 0, 2, { 18,18 } }, { 0, 1, { -2, 3 } }, { 1, 1, { 17,-2 } },
+ { 0, 1, { 17, 3 } }, { 0, 2, { 18,17 } }, { 0, 2, { -1,18 } },
+ { 1, 1, { 2,17 } }, { 0, 2, { 17,-2 } }, { 0, 1, { 17, 2 } },
+ { 1, 2, { 18,-3 } }, { 0, 1, { 17,-2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 1, 1, { 17,-2 } }, { 1, 2, { 17,-3 } },
+ { 1, 1, { 1, 3 } }, { 1, 1, { 2,17 } }, { 1, 2, { 18, 2 } },
+ { 1, 1, { 2,17 } }, { 1, 1, { 18, 2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 1, { 17,-2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 17,-1 } }, { 0, 2, { 18,-2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 1, 1, { 1, 3 } },
+ { 0, 2, { -2,17 } }, { 0, 2, { 18,-2 } }, { 0, 2, { 17,-2 } },
+ { 1, 1, { 2,17 } }, { 1, 1, { 1, 3 } }, { 0, 1, { 2,17 } },
+ { 0, 2, { 18,17 } }, { 0, 3, { -1,17 } }, { 1, 1, { 2,17 } },
+ { 0, 2, { 18,18 } }, { 0, 1, { 17, 2 } }, { 1, 4, { 18,-3 } },
+ { 1, 1, { 18, 1 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 18,-1 } }, { 0, 1, { -1,18 } }, { 1, 6, { 1, 2 } },
+ { 1, 1, { 17, 2 } }, { 1, 4, { 18, 3 } }, { 0, 1, { 1,17 } },
+ { 0, 1, { 18, 2 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 17, 2 } }, { 0, 2, { 18,-2 } }, { 0, 1, { 1,18 } },
+ { 1, 2, { 18,-3 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 1, 2, { 18,18 } }, { 1, 3, { 17,17 } },
+ { 0, 1, { -2,17 } }, { 0, 1, { 17,18 } }, { 0, 1, { -1, 3 } },
+ { 1, 1, { 2,17 } }, { 0, 2, { 18,-1 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 1, 1, { 17,-2 } }, { 1, 2, { 17, 2 } },
+ { 1, 1, { 18, 3 } }, { 0, 1, { 18, 2 } }, { 1, 2, { 17,-3 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 1, { -2,17 } },
+ { 0, 1, { 17,-1 } }, { 0, 1, { 18,-1 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 17,-3 } }, { 1, 1, { 1,18 } }, { 1, 3, { 18, 2 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 3, { 18,18 } }, { 0, 1, { 1,-2 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 2, { 17,-3 } }, { 1, 1, { 18,18 } }, { 0, 2, { 18, 2 } },
+ { 0, 1, { 17,18 } }, { 1, 2, { 18, 2 } }, { 1, 1, { 17,-2 } },
+ { 0, 2, { 17,-1 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 1, { 1,-2 } }, { 0, 1, { 18, 1 } },
+ { 1, 2, { 18,-2 } }, { 0, 1, { 17, 2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 1, 1, { 17, 3 } }, { 0, 1, { 17,-1 } },
+ { 0, 1, { 18, 2 } }, { 1, 1, { 17, 3 } }, { 1, 1, { 17,-2 } },
+ { 0, 1, { 18,18 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 1, { 17,18 } }, { 0, 1, { -2, 3 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 1, 2, { 18,-3 } },
+ { 0, 2, { 18,17 } }, { 0, 3, { 18, 2 } }, { 0, 1, { 1,18 } },
+ { 0, 2, { 18,17 } }, { 0, 1, { 17,-1 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 1, { -2, 3 } },
+ { 0, 3, { 17,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 1, { 17, 2 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 1, 1, { 17, 2 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18, 2 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } }, { 0, 2, { 18,17 } },
+ { 0, 2, { 18,17 } },
+};
+
+static const WavPackDecorrSpec default_specs[] = {
+ { 1, 2, { 18,18, 2,17, 3 } }, { 0, 2, { 18,17,-1, 3, 2 } },
+ { 1, 1, { 17,18,18,-2, 2 } }, { 0, 2, { 18,17, 3,-2,17 } },
+ { 1, 2, { 18,17, 2,17, 3 } }, { 0, 1, { 18,18,-1, 2,17 } },
+ { 0, 1, { 17,17,-2, 2, 3 } }, { 0, 1, { 18,-2,18, 2,17 } },
+ { 1, 2, { 18,18,-1, 2, 3 } }, { 0, 2, { 18,17, 3, 2, 5 } },
+ { 1, 1, { 18,17,18, 2, 5 } }, { 0, 1, { 17,17,-2, 2, 3 } },
+ { 0, 1, { 18,-2,18, 2, 5 } }, { 0, 1, { 17,-2,17, 2,-3 } },
+ { 1, 1, { 17,-2,17, 1, 2 } }, { 0, 1, { 17,17,-2, 2, 3 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 1, 4, { 18,18, 2, 3,-2 } },
+ { 0, 1, { 1,-1,-1, 2,17 } }, { 0, 2, { 18,17, 3, 2, 5 } },
+ { 0, 1, { 18,18,18, 2,17 } }, { 0, 1, { 18,17,-1, 2,18 } },
+ { 1, 1, { 17, 3, 2, 1, 7 } }, { 0, 2, { 18,-2,18, 2, 3 } },
+ { 1, 3, { 18,-3,18, 2, 3 } }, { 0, 3, { 18,17, 2, 3,17 } },
+ { 1, 1, { 17,17, 2, 1, 4 } }, { 0, 1, { 17,18,-2, 2,17 } },
+ { 1, 1, { 18,18, 3, 5, 2 } }, { 0, 1, { 17,17, 2,18, 4 } },
+ { 0, 1, { 18,17, 1, 4, 6 } }, { 1, 1, { 3,17,18, 2,17 } },
+ { 1, 1, { 17, 3, 2, 1, 7 } }, { 0, 1, { 18,17,-1, 2, 3 } },
+ { 1, 1, { 17,17, 2, 1, 4 } }, { 1, 2, { 18,17,-1,17, 3 } },
+ { 1, 2, { 18,17, 2, 3,-1 } }, { 0, 2, { 18,18,-2, 2,17 } },
+ { 0, 1, { 17,17, 2,18, 4 } }, { 0, 5, { -2,18,18,18, 2 } },
+ { 1, 1, { 18,18,-1, 6, 3 } }, { 0, 1, { 17,17,-2, 2, 3 } },
+ { 1, 1, { 18,17,18, 2,17 } }, { 0, 1, { 18,17, 4, 3, 1 } },
+ { 0, 1, { -2,18, 2, 2,18 } }, { 1, 2, { 18,18,-2, 2,-1 } },
+ { 1, 1, { 17,17, 2, 1, 4 } }, { 0, 1, { 17,18,-2, 2,17 } },
+ { 1, 1, { 17, 3, 2, 1, 7 } }, { 1, 3, { 18,-3,18, 2, 3 } },
+ { 1, 2, { 18,18,-2, 2,-1 } }, { 1, 1, { 18,18, 3, 5, 2 } },
+ { 0, 2, { 18,18,-1, 2,17 } }, { 0, 1, { 18,-1,17,18, 2 } },
+ { 0, 1, { 17,-1, 2, 3, 6 } }, { 0, 1, { 18,-2,18, 2, 5 } },
+ { 1, 2, { 18,18,-2, 2,-1 } }, { 0, 3, { 18,18, 2, 3,17 } },
+ { 0, 1, { 17,17, 2,18, 4 } }, { 1, 1, { 17,-2,17, 1, 2 } },
+ { 0, 1, { -1, 3, 5, 4, 7 } }, { 0, 3, { 18,18, 3, 2, 5 } },
+ { 0, 1, { 17,17, 2,18, 4 } }, { 0, 1, { 18,17,-2,18, 3 } },
+ { 0, 2, { 18,18,-2, 2,17 } }, { 0, 3, { 18,17,-2, 2, 3 } },
+ { 1, 1, { 18,18,-2, 2,17 } }, { 0, 1, { 18,17, 4, 3, 1 } },
+ { 1, 2, { 3,18,17, 2,17 } }, { 1, 2, { 18,18, 2,-2,18 } },
+ { 1, 2, { 18,18,-1,18, 2 } }, { 0, 2, { 18,18,-2, 2,17 } },
+ { 1, 3, { 18,18, 2, 3,-2 } }, { 0, 3, { 18,18, 3, 2, 5 } },
+ { 0, 1, { 18,-2,18, 2, 5 } }, { 1, 1, { 17, 3, 2, 1, 7 } },
+ { 1, 3, { 18,18,-2, 2,18 } }, { 1, 1, { 17,18,18,-2, 2 } },
+ { 0, 1, { 18,-2,18, 2, 5 } }, { 0, 2, { 18,-2,18, 2, 3 } },
+ { 0, 1, { -1, 3, 4, 5, 7 } }, { 1, 1, { 17,17, 2,-1, 7 } },
+ { 0, 1, { 18,-1,-1, 2,-2 } }, { 0, 2, { 18,17, 2, 3,17 } },
+ { 0, 1, { 18,17, 2,18, 2 } }, { 0, 2, { 18,17,-1, 2,17 } },
+ { 0, 1, { 1,18, 3, 2, 5 } }, { 0, 2, { 18,-2, 4,18, 2 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 0, 1, { 18,17,18, 2, 5 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 0, 4, { 18,18,-2, 2,18 } },
+ { 1, 1, { 18,18, 3, 2, 5 } }, { 1, 1, { 17,17, 2, 1, 4 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 1, { 18,18, 2, 1, 3 } }, { 1, 1, { 17,17, 2, 1, 4 } },
+ { 1, 2, { 17,17, 2,18, 3 } }, { 0, 1, { 18,17, 1, 4, 6 } },
+ { 1, 2, { 18,18,-2, 2,-1 } }, { 0, 1, { 18,-2,18, 2, 5 } },
+ { 1, 1, { 17, 2,18, 2,17 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 1, { 18,18, 3, 6,-1 } }, { 0, 1, { 18,17, 2,18, 3 } },
+ { 0, 1, { 18,17,-2, 2,17 } }, { 1, 1, { 3,17,18, 2,17 } },
+ { 1, 3, { 18,-3,18, 2, 3 } }, { 1, 3, { 18,18,-3,18, 2 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 0, 1, { 17,-2,17, 2,-3 } },
+ { 1, 1, { 18,18, 3, 5, 2 } }, { 1, 2, { 18,18,-2, 2,-1 } },
+ { 0, 1, { 18,-1,-1, 2,-2 } }, { 1, 1, { 18, 3, 1, 5, 4 } },
+ { 0, 3, { 18,17,-1, 2,17 } }, { 1, 3, { 18,17, 2,18,-2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 1, 2, { 18,18,-2, 2,-1 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 0, 4, { 3,18,18, 2,17 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 1, 1, { 18,17,-1,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 1, { 18,18,18, 3, 2 } }, { 0, 1, { 17,-1, 2, 3, 6 } },
+ { 0, 1, { 17,-1, 2, 3, 6 } }, { 0, 2, { 18,17,-2, 3, 2 } },
+ { 1, 3, { 18,17, 2,-2,18 } }, { 0, 2, { 18,18, 2,17, 3 } },
+ { 0, 1, { 18,18, 2,18,-2 } }, { 0, 2, { 18,-2, 4,18, 2 } },
+ { 0, 1, { -2,18, 2, 2,18 } }, { 0, 2, { 18,17, 3, 6, 2 } },
+ { 0, 1, { 18,17,18, 2, 5 } }, { 0, 3, { 18,18,-2, 3, 2 } },
+ { 1, 1, { 18,18, 2,18, 5 } }, { 0, 1, { 17,-1, 2, 3, 6 } },
+ { 1, 4, { 18,18, 2, 3,-2 } }, { 0, 2, { 18,17,18, 2,-2 } },
+ { 0, 1, { 1,18, 3, 2, 5 } }, { 1, 4, { 18,-2,18, 2, 3 } },
+ { 1, 2, { 18, 2,18, 3,-2 } }, { 0, 2, { 18,18,18, 2, 4 } },
+ { 0, 2, { 3,17,18, 2,17 } }, { 1, 1, { 18,-1,18, 2,17 } },
+ { 1, 2, { 17,17, 2,18, 3 } }, { 0, 2, { 18,17,-2, 3, 2 } },
+ { 0, 1, { 1,-1,-1, 2,17 } }, { 0, 3, { 3,18,18, 2,17 } },
+ { 0, 1, { 18,-1,17,18, 2 } }, { 0, 1, { 18,17, 2,18, 3 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 1, { 18,17, 2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 2, { 17,17, 2,18, 3 } }, { 0, 1, { 18,17,-2, 2, 3 } },
+ { 0, 1, { 18,-2,18, 2, 5 } }, { 1, 4, { 18,-2,18, 2, 3 } },
+ { 1, 3, { 18,17, 2, 3, 6 } }, { 0, 2, { 18,18, 2,17, 3 } },
+ { 0, 2, { 18,17, 2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 1, { 18,18, 3, 5, 2 } }, { 0, 2, { 18,18,-2, 2, 3 } },
+ { 1, 2, { 18,17, 2,17, 3 } }, { 0, 1, { 18,17, 2, 3,18 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 1, 4, { 18,18, 2, 3,-2 } },
+ { 0, 1, { 17,-2,17, 2,-3 } }, { 0, 1, { 17,17, 2,18, 4 } },
+ { 1, 1, { 18,18,18, 2, 4 } }, { 1, 2, { 18, 2,18, 3,-2 } },
+ { 1, 1, { 18,18,-2, 2,17 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18, 2,17, 3 } }, { 0, 2, { 18,18,18, 2, 4 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,17,-2, 3, 2 } },
+ { 0, 1, { 1,-1,-1, 2,17 } }, { 1, 4, { 18,18, 2, 3,-2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 1, { 18,-2,18, 3, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 1, { 18,18,-2, 2,17 } }, { 0, 3, { 18,17, 2, 3,17 } },
+ { 1, 2, { 18,18, 2,-2,18 } }, { 0, 1, { -1, 3, 5, 4, 7 } },
+ { 1, 1, { 18, 3, 1, 5, 4 } }, { 1, 1, { 18,18,-2,18, 3 } },
+ { 0, 2, { 18,17,18, 2,-2 } }, { 0, 2, { 18,18, 2,17, 3 } },
+ { 1, 2, { 18, 2,18, 3,-2 } }, { 1, 4, { 18,18, 2, 3,-2 } },
+ { 1, 3, { 18,17, 2, 3, 6 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 2, { 18,17,-2,-1,17 } }, { 0, 1, { 17,-1, 2, 3, 6 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2, 2, 3 } },
+ { 1, 1, { 18,18,18, 2, 5 } }, { 0, 1, { 17,17,-2, 2, 3 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,17, 3, 6, 2 } },
+ { 0, 2, { 18,17,18, 2, 3 } }, { 0, 3, { 18,17,-3,18, 2 } },
+ { 0, 1, { 18,18,18, 2, 3 } }, { 0, 1, { 18,-2,-3, 2, 6 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 1, 1, { 18,17,18, 2, 5 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 1, { 18,17,18, 2, 5 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 1, { 18,18,18, 2, 3 } }, { 1, 1, { 17,-2,17, 1, 2 } },
+ { 1, 1, { 17,17, 2,-1, 7 } }, { 0, 1, { 18,17, 4, 3, 1 } },
+ { 1, 3, { 18,-3,18, 2, 3 } }, { 0, 1, { 1,18, 3, 2, 5 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 1, { 18,18, 3, 6, 2 } }, { 0, 1, { 17,17, 2,18, 4 } },
+ { 0, 1, { 17,17, 2,18, 4 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 1, 2, { 18,-2,18, 3, 2 } }, { 1, 1, { 17,-2,17, 1, 2 } },
+ { 1, 1, { 18,18, 3, 2, 5 } }, { 0, 1, { 18,18,-1, 2, 3 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 1, { 18,17,18, 2, 5 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 1, { 3,18,18, 2,17 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+ { 0, 2, { 18,18,-2,18, 2 } }, { 0, 2, { 18,18,-2,18, 2 } },
+};
+
+static const WavPackDecorrSpec high_specs[] = {
+ { 1, 2, { 18,18,18,-2, 2, 3, 5,-1,17, 4 } }, { 0, 1, { 18,17,-2, 2,18, 3, 7, 2, 5, 4 } },
+ { 1, 2, { 1,18, 3, 6,-2,18, 2, 3, 4, 5 } }, { 0, 2, { 18,18,-2, 2,18, 3, 6, 2,17, 4 } },
+ { 1, 2, { 18,18, 2,18, 3, 2,-1, 4,18, 5 } }, { 1, 1, { 7, 6, 5, 3, 4, 2, 5, 4, 3, 7 } },
+ { 1, 1, { 17, 3,18, 7, 2, 6, 1, 4, 3, 5 } }, { 1, 1, { -2,18,18,18, 3,-2, 6, 5, 2, 1 } },
+ { 1, 2, { 18,18,-1,18, 2, 3, 6,-2,17, 5 } }, { 0, 1, { 17,17,18, 3, 6, 4, 5, 2,18,-2 } },
+ { 1, 2, { 1,18,-2, 3, 5, 2, 4,-1, 6, 1 } }, { 0, 2, { 18,18, 3, 6,18, 2, 4, 8, 5, 3 } },
+ { 0, 1, { -2, 1,18, 2,-2, 7,18, 2,-1, 5 } }, { 1, 1, { 4, 3, 8, 1, 5, 2, 5, 6, 2, 8 } },
+ { 1, 1, { 17,18, 2, 6, 3, 4,-1, 1, 8, 6 } }, { 0, 1, { 18,18, 3, 6, 3,-2, 2, 5,-1, 1 } },
+ { 0, 1, { 18,18,17,-1, 2,-2,18, 3, 4, 5 } }, { 1, 2, { 18,17, 2,-2,18, 3, 5, 7, 2, 4 } },
+ { 1, 2, { 18,18, 3, 6,-2,18, 2, 5, 8, 3 } }, { 0, 1, { 18,17, 2,18,18, 2, 6, 5,17, 7 } },
+ { 1, 2, { 18,17, 2,18, 3, 2, 6,18,-1, 4 } }, { 1, 1, { 5, 3, 6, 5, 3, 4, 1, 2, 4, 7 } },
+ { 1, 1, { 5, 3, 6, 5, 3, 4, 1, 2, 4, 7 } }, { 0, 1, { -2,18,18,18,-2, 3, 2, 4, 6, 5 } },
+ { 1, 2, { 18,17,-3, 3,-1,18, 2, 3, 6, 5 } }, { 0, 1, { 17,18, 7, 3,-2, 7, 1, 2, 4, 5 } },
+ { 1, 1, { 2,18,18,-2, 2, 4,-1,18, 3, 6 } }, { 0, 3, { 1,18, 4, 3, 5, 2, 4,18, 2, 3 } },
+ { 0, 1, { -2,18, 2,18, 3, 7,18, 2, 6,-2 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18,18, 5, 4, 6, 4, 5, 1, 4, 3 } }, { 1, 1, { 18, 3, 6, 5, 7, 8, 2, 3, 1,-1 } },
+ { 1, 1, { 18,18,18, 2,-2, 3, 5,18, 2, 8 } }, { 0, 2, { 18,17,-2, 2, 3,18,-3, 5, 2, 7 } },
+ { 1, 1, { 1, 1,-1, 8,17, 3,-2, 2, 6,17 } }, { 0, 2, { 18,18,17, 2,-2, 3, 2, 4,18, 5 } },
+ { 1, 1, { 17,18, 2,-1, 5, 7,18, 3, 4, 6 } }, { 1, 1, { 5, 4, 5,17, 3, 6, 3, 4, 7, 2 } },
+ { 0, 1, { 17, 3, 1, 7, 4, 2, 5,-2,18, 6 } }, { 0, 1, { 17,18, 2,18, 4, 3, 5, 7,-3, 6 } },
+ { 1, 2, { 17,17,-3,-2, 2, 8,18,-1, 3, 5 } }, { 0, 1, { 17,17,18, 2, 3, 6,-2, 8, 1, 7 } },
+ { 1, 1, { 1, 2, 6,-2,18, 2, 5,-3, 7,-2 } }, { 0, 1, { 18,18, 3,18, 6, 8,-2, 2, 3, 5 } },
+ { 0, 1, { 18,17, 2,18,-2, 3, 7, 6, 2, 4 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18,18, 2,-1, 3, 6, 1, 3, 4, 8 } }, { 0, 1, { 18,18, 3, 6, 5, 3,-2, 2,18,-1 } },
+ { 0, 1, { 18,17,-3,18, 2, 4,-2, 3, 6,17 } }, { 1, 3, { 1, 2,17, 3,18, 7,-1, 5, 2, 4 } },
+ { 1, 1, { 18, 3,18, 6, 8,18,-2, 5, 7, 2 } }, { 0, 1, { 17, 2,18, 6, 3, 2, 5, 4, 8, 1 } },
+ { 0, 1, { 18,17,-1, 2, 3,18,18, 2, 3,17 } }, { 1, 1, { 18, 7, 6, 5, 5, 3, 1, 4, 2, 4 } },
+ { 1, 1, { 6,17, 3, 8, 1, 5, 7,-1, 2, 1 } }, { 1, 1, { 18,-2,18, 3,-2, 2, 7, 4, 6,18 } },
+ { 1, 3, { 18,-3,18, 2, 3,18,-1, 7, 2, 5 } }, { 0, 2, { 18,-2, 7, 1, 3, 2, 4, 6,-3, 7 } },
+ { 1, 1, { 18,-2, 2,-3,18,-2,17,-1, 4, 2 } }, { 0, 3, { 17,17, 2, 5, 3, 7,18, 6, 4, 2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18,17, 4, 6, 6, 4, 5, 3, 4, 1 } }, { 0, 1, { 18, 5, 3, 6, 2, 3, 8, 1, 3, 7 } },
+ { 1, 2, { 18,17,-2, 2,18, 3, 5, 7,-1, 2 } }, { 0, 1, { 1,18,18, 3, 6,-1, 4, 8, 5, 2 } },
+ { 1, 1, { 1, 5, 3, 4, 1, 1, 3, 5, 7, 3 } }, { 0, 1, { 3,18,18, 2,18,18,-1, 2, 3,18 } },
+ { 1, 2, { 18,18,-1,18, 2, 3, 4, 6,18, 5 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18, 3, 1, 4, 5, 2, 7, 1, 3, 6 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 18,18,-1,18, 2, 3, 5,-2, 6, 8 } }, { 1, 1, { 17,18, 4, 8, 3, 2, 5, 2, 7, 6 } },
+ { 1, 4, { 1, 2, 5,18,-2, 2, 3, 7,-1, 4 } }, { 0, 2, { 18,17,-1, 3, 6,18, 2, 3, 7, 5 } },
+ { 0, 1, { -2,18, 2,-3, 6,18, 4, 3,-2, 5 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 17,17, 6, 2, 4, 8, 3, 5,-1,17 } }, { 1, 1, { 18, 3,18, 6, 8,18,-2, 5, 7, 2 } },
+ { 1, 2, { 17,17,-3, 2,18,-2, 8, 3, 6,-1 } }, { 1, 1, { 18,-2,17,18, 2, 3,-2, 6, 5, 4 } },
+ { 1, 2, { 18,17,-1, 3,18, 2, 5, 3, 6,-3 } }, { 0, 1, { 18,17, 2,18, 7,18, 2, 4, 3,17 } },
+ { 1, 3, { 18,18, 5, 6, 4, 3, 4,18, 6, 5 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 7, 6, 5, 3, 4, 2, 5, 4, 3, 7 } }, { 0, 1, { -2,18,18,18, 3, 6, 4, 2, 5, 2 } },
+ { 0, 3, { 18,17,-3,18, 3, 2, 5,-1,17, 3 } }, { 1, 1, { 17,18, 7, 3, 1, 7, 4, 2, 6, 5 } },
+ { 1, 1, { 18, 2,-2,-1,18, 5, 3,-2, 1, 2 } }, { 0, 3, { 18,18,-1, 3, 2, 7, 5,18, 4, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 17,18, 2,-2, 4, 8,18, 3, 6, 5 } }, { 0, 2, { 18,17, 3, 5,-2, 7, 2,18, 3,-1 } },
+ { 1, 1, { 18, 2,-2,-1,18, 5, 3,-2, 1, 2 } }, { 0, 2, { 3,17,18,18, 2, 5, 7, 6,18, 3 } },
+ { 1, 1, { 17,18,18, 4, 3, 2,18, 7, 8,-1 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 17, 1, 2, 3, 5, 6, 1, 4, 8,17 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 18,17,-1,18,-3, 2, 8, 3, 6,17 } }, { 1, 1, { 17,17, 1, 2, 4, 5,-1, 2, 1, 6 } },
+ { 1, 1, { 1, 2, 6,-2,18, 2,-3, 3,-2, 5 } }, { 0, 1, { 18, 3,18, 6,18, 5, 2, 4,-1, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18,18,-1, 2,18, 3, 6, 4,-2, 7 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { -1,18,18,18, 2,-2, 4, 7, 2, 3 } }, { 0, 3, { 3,17,-2, 5, 2, 7,18, 6, 4, 5 } },
+ { 0, 1, { 17, 6,18, 3, 8, 4, 5, 3, 8,18 } }, { 0, 2, { 18, 2, 6, 2,18, 3, 2, 4, 5, 8 } },
+ { 0, 1, { 3,18,18, 2,18,-1, 2,18, 2,17 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 3, 6,17,-2, 5, 1, 2, 7, 4, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 3, { 3,18,17, 5, 6, 2, 7,-2, 8,18 } }, { 1, 1, { 18,-1, 3, 1, 7, 2,-1, 4, 6,17 } },
+ { 1, 1, { 18, 2,-2,-1,18, 5, 3,-2, 1, 2 } }, { 0, 2, { 18, 1, 2,18, 3, 6, 5, 2, 4, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 17,-2, 2,18,18, 8, 5, 3, 2, 6 } }, { 0, 1, { 18,17, 2,18, 3, 2, 7,-2,18, 4 } },
+ { 1, 2, { 1,18, 2, 3,-1, 5, 6, 4, 7,17 } }, { 0, 2, { 18,17, 3, 6,-2, 2, 3, 8, 5,17 } },
+ { 0, 2, { 18,18, 3, 2,18,-1, 2, 4, 3,17 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 17,-1,18, 2, 3,-2, 5,18, 2, 7 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 18,-3,18, 2, 3,-2,18, 5, 6,-3 } }, { 0, 2, { 18,17, 3, 5,-2, 7, 2,18, 3,-1 } },
+ { 1, 1, { 1,18,-1, 2, 3, 1,-2, 8, 2, 5 } }, { 0, 1, { 18,18, 3, 6,18, 2, 3, 4, 8, 5 } },
+ { 0, 1, { -2, 1,18, 2,-2, 5, 7,18, 2,-1 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 17,18,-1, 2, 8, 3, 4, 5, 1, 7 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 18,18,-1, 2,18, 3,-2, 5, 4, 2 } }, { 1, 1, { 18,17, 2,18, 3, 8, 5, 2, 7,17 } },
+ { 0, 1, { 18,18, 3,18, 6, 8,-2, 2, 3, 5 } }, { 0, 1, { 18,18, 2,18, 2, 6,18, 2,17, 7 } },
+ { 1, 3, { 18,17,18, 2, 8,18, 5,-1, 3, 6 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 18, 7, 6, 5, 5, 3, 1, 4, 2, 4 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 18,17,-1, 3, 6,18, 2, 5, 8, 3 } }, { 0, 1, { 17,18,18, 4, 7, 2, 3,-2,18, 5 } },
+ { 1, 2, { 18, 1, 2, 6, 2, 5,18, 2, 4, 8 } }, { 0, 4, { 18, 4, 1, 2, 3, 5, 4, 1, 2, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 2, { 18,17, 2,-1,18, 3,-3, 5, 2, 4 } },
+ { 0, 1, { 17,17, 3, 6, 3, 5,-2, 2,18,-1 } }, { 0, 2, { 18,18, 3,-2,18, 2,-3, 5, 3, 6 } },
+ { 1, 1, { 17,17, 2, 4, 1, 3, 5, 2, 6,-3 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 17, 1, 3, 2, 7, 1, 6, 3, 4, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 17,-1,18, 2, 1, 5, 3, 8,-1,-2 } }, { 1, 1, { 17,18,-1, 8, 2, 5, 3, 4, 1, 6 } },
+ { 1, 2, { 1,18, 3,-1, 5, 1, 2, 4, 7, 6 } }, { 0, 1, { 18,18, 3, 6, 5, 3,-2, 2,18,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 1,18,-1, 3, 8, 5, 6, 1, 2, 3 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 18,18, 2, 3, 6,18,-1, 4, 2, 3 } }, { 1, 1, { 1, 3, 5,18, 2, 6, 7, 2, 3, 1 } },
+ { 1, 1, { 1, 3, 8,18, 5, 2, 7, 1, 3,-2 } }, { 0, 2, { 17, 2,18, 3, 6, 2, 4, 5, 8, 3 } },
+ { 0, 1, { 18,17, 2,18, 3, 2, 7,-2,18, 4 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 18,-3,18,-1, 3,-2, 5, 7, 1, 2 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 3, { 18,18, 2, 6,18, 5,18, 2, 3,17 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 3, { 1,-1, 1, 3,-2, 2, 5, 7,-3,18 } }, { 1, 2, { 18, 7, 3,-3, 2, 8, 2, 5, 4,17 } },
+ { 1, 1, { 1, 4, 5, 1, 3, 4, 6, 7, 8, 3 } }, { 0, 1, { 18,17, 2,18,-1, 2, 3,18, 2, 4 } },
+ { 0, 2, { 18,18,-2,18, 2, 3, 4, 7, 5,17 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 17,18, 2, 1, 3, 2, 5, 1, 2, 3 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 18,18,-1, 2, 3, 5, 8, 6, 1,-2 } }, { 0, 1, { 17,18, 8, 3, 4, 6, 5, 2, 8, 7 } },
+ { 1, 2, { 1, 3,-2,18, 2, 5, 1, 7,-1,-2 } }, { 0, 3, { 18,17,-1, 3,18, 2, 3, 6, 4,17 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 2, { 18,18, 4,18, 6, 7, 8, 3,18, 2 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 17,-3,17, 2,-2, 8, 3,18, 4,-3 } }, { 1, 1, { 18,17, 3, 5, 6, 2, 8, 1, 3, 7 } },
+ { 0, 1, { 18,18, 3, 6, 5, 3,-2, 2,18,-1 } }, { 0, 3, { 18,18, 2, 6,18, 5,18, 2, 3,17 } },
+ { 1, 1, { 18,18, 5, 4, 6, 4, 5, 1, 4, 3 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { 3,17,18,-3, 2, 5,18, 6,-1, 7 } }, { 1, 1, { 17,18, 3, 2, 5,-1, 6, 8, 4, 7 } },
+ { 1, 1, { 18, 1,-2, 3, 2, 1, 7, 6, 3, 4 } }, { 0, 3, { 1, 2,17, 3,18, 2, 7, 5, 4,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 17,-2, 2,18,18, 8, 5, 3, 2, 6 } }, { 0, 2, { 18, 5,18, 2, 3, 7,-2, 1, 6, 8 } },
+ { 0, 1, { 2,-1,18,-1, 2, 4,-3, 5,18, 3 } }, { 0, 1, { 3,17,18, 5, 2,18, 7, 3, 6, 5 } },
+ { 1, 4, { 1, 2, 5,18,-2, 2, 3, 7,-1, 4 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 1,18, 2, 1, 3, 4, 1, 5, 2, 7 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { 17,17,18, 2, 4, 5,18,-2, 6, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 2, { 18,18,-1, 3, 5, 6, 8,18, 2, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { 18,18, 4, 6, 8,18, 7, 3, 2, 5 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 2, { -1,18,18,18, 2, 4,-2, 2, 3, 6 } }, { 0, 2, { 18,-2, 7, 1, 3, 2, 4, 6,-3, 7 } },
+ { 1, 1, { 17,18, 8, 3, 4, 6,-2, 5, 3, 8 } }, { 0, 2, { 18, 1, 2, 6, 2, 8, 3,18, 5, 4 } },
+ { 1, 1, { 3,18,18, 2,18, 2,18, 3, 2,18 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 1, 1, { 3,17,18, 5, 2, 6, 7, 1, 4, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } }, { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2, 8 } },
+};
+
+static const WavPackDecorrSpec very_high_specs[] = {
+ { 1, 2, { 18,18, 2, 3,-2,18, 2, 4, 7, 5, 3, 6, 8,-1,18, 2 } },
+ { 0, 1, { 18,18,-1,18, 2, 3, 4, 6, 5, 7,18,-3, 8, 2,-1, 3 } },
+ { 1, 2, { 1,18,-2, 4,18, 2, 3, 6,-1, 7, 5,-2,18, 8, 2, 4 } },
+ { 0, 1, { 17,17, 2, 3, 4,18,-1, 5, 6, 7,18, 2, 8,17, 3,-2 } },
+ { 1, 1, { 18,18, 2,18, 3, 2,18, 4,-1, 3,18, 2, 6, 8,17, 5 } },
+ { 0, 2, { 18,17, 2, 3,-2, 5,18,-3, 2, 4, 7, 3, 6, 8, 5,17 } },
+ { 1, 1, { 18,-2, 2,-3,18, 5,-2,18, 2, 3, 6, 2,17, 4, 7,-1 } },
+ { 1, 1, { 17, 8,18, 3,-2, 2, 5, 4,18, 6, 3, 8, 7, 2, 5, 4 } },
+ { 0, 2, { 18,17,-2, 2,18, 3, 2, 5,-3, 4, 7,18, 3, 8, 6, 2 } },
+ { 1, 1, { 3, 6, 5, 5, 1, 3, 7, 4, 2, 6, 4,18, 3, 7, 5, 6 } },
+ { 1, 2, { 1,18, 3, 2,-2, 1, 5, 4, 6, 2, 7, 1, 8, 3,-1, 1 } },
+ { 0, 1, { 18,18, 2, 3, 6, 3, 5,-2, 2, 4,18, 3,-2,-1, 6, 7 } },
+ { 0, 1, { -2,18, 2,18, 7, 2, 6,-2, 3, 4,18,18, 2,-3, 8, 5 } },
+ { 0, 2, { 18,18,18, 2, 4, 3,18, 5, 3, 6,-2, 2, 4,18, 8, 7 } },
+ { 0, 1, { -2, 1,18, 2,-2,18,-1, 5, 7, 2, 3, 4,18, 2, 6, 2 } },
+ { 1, 1, { 17,18, 3, 2, 1, 7,-1, 2, 4, 3, 5, 6,-2,18, 7, 8 } },
+ { 1, 1, { 18,18, 2,18, 3, 4, 6,-2,18, 5, 8, 2, 3, 7, 4,-1 } },
+ { 0, 1, { 18,18,18,-1, 2, 3, 4, 6, 8,18, 3, 5, 2, 6, 7, 4 } },
+ { 1, 1, { 17,-2,18,18, 2, 5, 3, 8, 2,-1, 6, 1, 3, 4, 7, 5 } },
+ { 0, 1, { 17,17,18, 2, 3, 6,-2, 8, 1, 7, 5, 2, 3, 1, 4, 8 } },
+ { 1, 1, { 17,17, 3, 2, 7, 1, 4, 3, 6, 2, 5,-2, 8, 7,18, 6 } },
+ { 0, 1, { 18,17,-2, 2,18, 3,-3, 7, 6, 5, 2, 4,-1, 8, 3,17 } },
+ { 1, 1, { 2,18,18,-2, 2, 4,-1, 5,18, 3, 8, 6, 2, 7,17, 4 } },
+ { 0, 1, { 17, 3, 6, 8, 5, 4, 3, 8, 1,18, 7, 2, 4, 5, 6, 3 } },
+ { 1, 2, { 17,18, 4, 8, 3, 2, 5, 7, 6, 8, 2, 7,-2,18, 3, 4 } },
+ { 1, 1, { 6, 5, 5, 3, 4, 7, 3, 2, 4, 6, 3, 7, 1, 5, 2, 4 } },
+ { 1, 1, { 1,18,-1, 2, 1, 3, 8,-2, 2, 5, 6, 3, 8, 7,18, 4 } },
+ { 0, 1, { 1,17,-1,18, 3, 2, 5, 4, 6, 7, 8, 3, 4, 2, 1,-2 } },
+ { 0, 1, { 18, 2,18,18, 2,18, 6,-2,18, 7, 5, 4, 3, 2,18,-2 } },
+ { 0, 3, { 1, 4,18, 3, 2, 4, 1, 5, 2, 3, 6,18, 8, 7, 2, 4 } },
+ { 0, 1, { 17,-2, 1,-3, 2,18, 3,-2, 4,18, 3, 6, 7,-3, 2, 8 } },
+ { 1, 1, { 17,18,18, 4, 2, 3, 7, 6,18, 8, 5,-1, 4, 2, 3,17 } },
+ { 1, 2, { 18,-1,17,18, 2, 3,-2,18, 5, 8, 2, 4, 3, 7, 6,-1 } },
+ { 1, 1, { 18,18,18,-2, 4, 2, 3,18, 5, 8, 2, 4, 6, 7,-2, 3 } },
+ { 1, 2, { 18,18,-2,18,-1, 3, 2, 5,18,-2, 7, 2, 3, 4, 6, 8 } },
+ { 0, 1, { 17,18,-1, 2, 4,18, 8, 3, 6, 5, 7,-3, 2, 4, 3,17 } },
+ { 1, 1, { 18,18,17, 2,-1,18, 3, 2,18, 6, 5, 4,18, 7, 2,-1 } },
+ { 0, 2, { 1,18,-1,18, 3, 2, 4, 6,-3, 7,-1, 5, 1, 2, 3, 8 } },
+ { 1, 1, { 1,17,-2, 2,-3, 6, 3, 5, 1, 2, 7, 6, 8,-2, 4, 1 } },
+ { 0, 1, { 17,-1, 5, 1, 4, 3, 6, 2,-2,18, 3, 2, 4, 5, 8,-1 } },
+ { 0, 2, { 18,18,17, 2, 3,-2, 5,18, 2, 4, 7, 8, 6,17, 3, 5 } },
+ { 1, 1, { 1, 5, 1, 3, 4, 3, 7, 5, 1, 3, 6, 1, 2, 4, 3, 8 } },
+ { 1, 2, { 1,-1, 3, 2,18, 7,-2, 5, 2, 6, 4, 3,-1,18, 8, 7 } },
+ { 0, 2, { 18,17, 3,18, 2, 5, 4, 3, 6, 2, 7, 8,18, 3, 4, 5 } },
+ { 1, 1, { 3, 6,17, 8, 7, 5,18,-1, 1, 2, 3, 4, 2, 6, 8, 1 } },
+ { 0, 2, { 18,18, 3,-3,18, 2, 6, 5, 3, 7,18, 4,-2, 8, 2, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 1, 7, 2, 3,18,-2, 3, 6, 4, 2, 7, 8, 5, 3,17 } },
+ { 1, 1, { 3, 6, 5, 5, 1, 3, 7, 4, 2, 6, 4,18, 3, 7, 5, 6 } },
+ { 0, 1, { 18,18,18, 2, 4,-1,18, 8,-1, 2, 3, 4, 6,-2, 1, 7 } },
+ { 1, 1, { 18,-2,17,18, 2, 6, 3,-2, 5, 4, 7, 1,-3, 8, 2, 6 } },
+ { 0, 1, { 17,18,18, 4, 2, 7, 3, 6,-2,18, 8, 4, 5, 2, 7,17 } },
+ { 1, 1, { 18,18, 5, 4, 6, 4, 1, 5, 4, 3, 2, 5, 6, 1, 4, 5 } },
+ { 0, 1, { 18,18,-2,18, 2,-3, 3, 8, 5,18, 6, 4, 3,-1, 7, 2 } },
+ { 1, 1, { 18, 2,-2,-3,18, 5, 2, 3,-2, 4, 6, 1,-3, 2, 7, 8 } },
+ { 0, 1, { 18, 3, 5, 8, 2, 6, 7, 3, 1, 5, 2,-1, 8, 6, 7, 4 } },
+ { 1, 1, { 4, 3, 8, 1, 5, 6, 2, 5, 8,-2, 2, 7, 3,18, 5, 4 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 3,18,18, 7, 2, 4,18, 6, 2, 3,-1, 8, 5,18,-3 } },
+ { 0, 1, { 3,17,18, 2,18, 6, 7,-3,18, 2, 5, 6, 3, 8, 7,-1 } },
+ { 1, 1, { 18,18, 2,18,18, 2,-1, 7, 3,18, 5, 2, 6, 4,-1,18 } },
+ { 0, 3, { 18, 3, 4, 1, 5, 2,18, 4, 2, 3,18, 7, 6, 1, 2, 4 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 1,18, 2, 3, 6, 4, 5, 7,18, 3, 8, 2, 4,-2,17 } },
+ { 1, 2, { 18,17, 2, 3, 5,18, 6,-2, 7, 3, 2, 4,18, 8,-1, 5 } },
+ { 0, 2, { 1,18,-1,18, 3, 2, 4, 6,-3, 7,-1, 5, 1, 2, 3, 8 } },
+ { 1, 1, { 1,18,-1, 8, 2, 6, 3,-2, 1, 2, 5, 4,-3, 8, 6, 3 } },
+ { 0, 1, { 18,18, 2,18, 2,18, 7, 6,18, 2,-2, 3, 5, 4,18, 8 } },
+ { 1, 2, { 18,17, 2, 3,18,-1, 2, 3, 6,18, 5, 4, 3, 7, 2, 8 } },
+ { 1, 2, { 18,18, 3,-2, 4,18, 5, 7, 6, 2, 4,-3, 8, 5,18, 3 } },
+ { 1, 1, { 17,-2,18,18, 2, 5, 3, 8, 2,-1, 6, 1, 3, 4, 7, 5 } },
+ { 1, 1, { 3,17,18, 5, 7, 2, 4, 6, 1, 8,-1, 3, 7, 4, 1, 2 } },
+ { 0, 2, { 1,-2, 2,18, 3, 5, 2, 4, 7,-1, 2, 3, 5,18,-2, 4 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 1, 2,-2, 6,18,-3, 2, 7, 3,-2, 5, 6, 1, 8, 2, 4 } },
+ { 0, 1, { 18,18,18, 3,-2, 6,18, 2, 4, 3, 5, 8, 7, 6, 2,-2 } },
+ { 1, 1, { 1, 5, 1, 3, 4, 3, 7, 5, 1, 3, 6, 1, 2, 4, 3, 8 } },
+ { 0, 1, { 3,17,18, 2, 5,18, 6, 7, 5,-2, 2, 4,18, 3, 6, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 2, { 17,-1,18, 2, 4,-1, 8, 3,18, 7,-3, 4, 5, 1, 2,-2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 8, 6, 4, 5, 7,-1 } },
+ { 1, 1, { 18,18, 3, 6, 4, 8,-2, 2, 5, 3, 7,18, 6, 8, 4, 2 } },
+ { 1, 1, { 17,18,18,-2, 5, 2, 3, 1, 4,-1, 8, 6, 5, 3, 2,18 } },
+ { 1, 1, { 17,17, 1, 2, 4, 5, 2, 6,-1, 3, 1, 1,-2, 4, 2, 7 } },
+ { 1, 1, { 17, 1, 7, 2, 3,18,-2, 3, 6, 4, 2, 7, 8, 5, 3,17 } },
+ { 0, 1, { 18,17,-2,-3, 1, 2, 3, 2, 5, 4, 7,-3, 6,-2, 2, 1 } },
+ { 1, 1, { 1, 3, 5,18, 1, 2, 7, 3, 6, 2, 5, 8,-1, 1, 4, 7 } },
+ { 1, 1, { 17, 3, 6, 8, 1, 4, 5, 3,-2, 7, 2, 8, 5, 6,18, 3 } },
+ { 1, 1, { 17,18, 2, 4, 8,-2, 3, 1, 5, 6, 7, 1, 2, 3, 4, 7 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 3, 1, 8,18, 5, 2, 3,18, 6, 7,-2, 4, 3, 2, 8,18 } },
+ { 0, 1, { 18,17, 2,18, 3, 4,-1,18, 7, 6, 2, 8, 4,18,18, 5 } },
+ { 0, 1, { 18,18, 2,18,18, 2, 7,-2, 6, 5, 4, 3,18, 3, 2,17 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 8,18, 3, 2, 1, 5, 4, 6,-1, 3,-3, 8,18, 7, 2 } },
+ { 1, 2, { 18,17,18, 2, 3, 5,-2,18, 6,-1, 2, 3, 7, 4, 8,17 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 8, 6, 4, 5, 7,-1 } },
+ { 1, 2, { 18,18,-2,17, 2,18, 3, 4,18, 8, 7,-1, 2, 4, 5,17 } },
+ { 0, 2, { 17,-3,17, 3, 2,-2,18, 8, 4,-3, 2,18, 5, 3,-2, 6 } },
+ { 0, 1, { 18,18, 2,18,18, 2, 7,-2, 6, 5, 4, 3,18, 3, 2,17 } },
+ { 0, 2, { 1,18,-1, 3, 5, 2,-3,18, 7, 3,-1, 6, 4, 2,17, 5 } },
+ { 1, 1, { 17,-2,17, 2,-3, 1, 5,-1, 4, 6, 3, 2, 8, 7,-2, 5 } },
+ { 1, 1, { 1,18, 1, 3, 5, 8, 6, 2, 3,-1, 7, 1, 4, 8, 5,-3 } },
+ { 0, 2, { 3,18,18, 2,18,-2, 6, 5, 7, 2, 4,18, 3, 6,-3, 5 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 3, 6,17, 8, 7, 5,18,-1, 1, 2, 3, 4, 2, 6, 8, 1 } },
+ { 0, 4, { 18, 2,17, 3,18,-2, 2, 6,18, 2, 7, 3, 5, 4, 8,18 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 18,18, 2, 3, 6, 3, 5,-2, 2, 4,18, 3,-2,-1, 6, 7 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 1, 2, 5, 3,-2, 1, 4, 3, 7, 6,-3, 2, 1, 1, 2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 18,18,-2,18,-2, 2, 3, 6,18, 4,-1, 2, 3, 8, 1, 4 } },
+ { 1, 1, { 17,-2,17, 2,-3, 1, 5,-1, 4, 6, 3, 2, 8, 7,-2, 5 } },
+ { 0, 1, { 17,17,18, 3, 2,18,18, 6, 8, 2,-2, 3, 5, 4,17,18 } },
+ { 1, 1, { 1, 5, 1, 3, 4, 3, 7, 5, 1, 3, 6, 1, 2, 4, 3, 8 } },
+ { 1, 1, { 1, 3,-3,18,18, 6, 5,18, 2,-1, 3, 8, 7,-3, 4,17 } },
+ { 1, 1, { 18, 1, 2, 1, 3, 8, 7, 4, 1, 5, 2,-1,-3,18, 6, 2 } },
+ { 0, 1, { 18, 3, 5, 2, 6, 8,18, 5, 7, 2, 3,-1, 6, 7, 8, 5 } },
+ { 0, 2, { 18, 3,-2, 7, 8, 2, 5, 4,-3, 8, 3, 2,18, 5, 4, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 3, { 1, 1, 2, 5, 2, 7, 4, 3,-1,18,-2, 8, 2, 1, 6, 7 } },
+ { 0, 1, { 3,17,18, 5, 2, 6, 7,18, 4, 5, 3, 6,18, 2, 7, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 1,18, 1, 2, 3, 5, 1, 2, 6, 7, 4, 3, 8, 1,17, 5 } },
+ { 1, 2, { 17,-1,18,-2, 2, 3, 5,18, 2, 4, 6, 7, 3,-1, 5, 8 } },
+ { 1, 1, { 18,18,-3,18,-2, 2, 3,-2,18, 6, 4, 5, 8, 3,17,-3 } },
+ { 1, 1, { 18, 7, 6, 5, 5, 3, 1, 4, 2, 7, 3, 4,-3, 6,18, 8 } },
+ { 0, 2, { 18,18, 2, 3, 5,18, 2, 4, 3, 6,18, 7, 8,-1, 5, 2 } },
+ { 0, 1, { 18,17,-1, 2,18, 3, 2,18, 4, 3,18, 2, 6, 5, 8,17 } },
+ { 0, 2, { 18,17, 2, 3,18, 5,-1, 6, 7, 8, 2, 3, 4, 5,18, 6 } },
+ { 1, 2, { 18,-3,18, 2, 3,-2,-3, 5,18, 7, 6, 2, 4, 3, 8,-2 } },
+ { 1, 1, { 17,18,18,-2, 2, 3, 5, 4, 8,18,-1, 5, 3, 6,-2, 7 } },
+ { 1, 2, { 18,17, 2,-2,18, 3,-1, 4,18, 2, 7, 5, 3, 8, 6, 4 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 1, 5, 1, 3, 4, 3, 7, 5, 1, 3, 6, 1, 2, 4, 3, 8 } },
+ { 0, 2, { 18,18, 3, 3,-2, 2, 5,18, 6, 3,-1, 4, 7,-1, 1, 2 } },
+ { 0, 1, { -2, 1,18, 2,-2, 5, 7,18, 3, 2, 6, 2,-1, 4,-2,17 } },
+ { 0, 2, { 18,18,18, 2, 3,-2,18, 5, 4, 2, 6, 8, 3,-2, 4,18 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17,18,-1, 3, 2, 5, 1, 3, 2, 8, 4, 7, 6, 2,-1, 5 } },
+ { 1, 1, { 17,18,18, 4, 2, 3, 7, 6,18, 8, 5,-1, 4, 2, 3,17 } },
+ { 0, 1, { 18,18,-2,18, 2, 3, 4, 5, 6,18, 8, 2, 3, 7,-2, 4 } },
+ { 0, 1, { 18,-2,18,18,-3,-2, 2, 3, 5, 8, 1, 2, 6, 4, 7,-1 } },
+ { 0, 1, { 18,17, 2,18, 3,-2, 2, 7, 6, 4,18, 3, 8, 7, 4, 2 } },
+ { 1, 1, { 17,18,18, 4, 2, 3, 7, 6,18, 8, 5,-1, 4, 2, 3,17 } },
+ { 1, 1, { 18,17,18, 2, 5, 3,-2,18, 6, 2, 3, 4, 8, 7, 5,-1 } },
+ { 0, 1, { 2,-1,18,-1, 2, 4,-3,18, 5, 3, 6,18, 2, 4, 7, 8 } },
+ { 1, 1, { 17,18, 8, 3, 6, 4,-1, 5, 2, 7, 3, 8, 6, 5,18, 4 } },
+ { 0, 2, { 18, 3,-2, 7, 8, 2, 5, 4,-3, 8, 3, 2,18, 5, 4, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 1,18,-1, 8, 2, 6, 3,-2, 1, 2, 5, 4,-3, 8, 6, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 17,18,18, 4, 2, 7, 3, 6,-2,18, 8, 4, 5, 2, 7,17 } },
+ { 1, 2, { 18,-1,18, 3,-2,18, 2, 5, 3, 6, 7, 2,-1,18, 8, 4 } },
+ { 1, 2, { 1,18,-2, 4,18, 2, 3, 6,-1, 7, 5,-2,18, 8, 2, 4 } },
+ { 1, 2, { 1,18,-3, 2, 3,18,-1, 5, 6, 2, 8, 3, 4, 1,-2, 7 } },
+ { 0, 1, { 1,17,-1,18, 3, 2, 5, 4, 6, 7, 8, 3, 4, 2, 1,-2 } },
+ { 1, 1, { 18,17,18, 4, 3, 5, 1, 2, 6, 3, 4, 7, 1, 8, 5, 2 } },
+ { 0, 1, { 18,-2, 7, 1, 3, 2,-3, 4, 6,-2, 7, 8, 1, 5, 4, 3 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 2, { 18,18,18,-2, 2, 5, 3, 7,18, 2, 4,-3, 5, 6, 3, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 3, { 3,18,-1, 5, 2, 7,18, 6, 5, 2, 4, 3,-1, 7,18, 6 } },
+ { 0, 2, { 18,18,18, 4, 3, 2, 6, 4, 8,18, 5, 3, 2, 7,-2, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 2, { 18,18,18, 2, 3,-2,18, 5, 4, 2, 6, 8, 3,-2, 4,18 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 8,18, 3, 2, 1, 5, 4, 6,-1, 3,-3, 8,18, 7, 2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18,18, 2, 4, 6,-2, 2, 8, 3, 4,18, 7,-1, 6 } },
+ { 0, 1, { 18, 1,-2, 2, 4, 1, 3,-1, 2, 5, 7, 1, 6, 8,-2,17 } },
+ { 0, 1, { 17,17,18, 2, 5, 4,18, 3, 8, 7, 4, 6, 8, 1, 5, 2 } },
+ { 1, 2, { 18,18, 5, 4, 6, 3, 4,18, 8, 4,-1, 7, 5, 3, 6, 2 } },
+ { 0, 1, { 18,18,-3,18, 3, 6, 2, 5, 7,18, 3, 8,-1, 4, 5, 2 } },
+ { 1, 1, { 18, 2,-2,-3,18, 5, 2,-2, 4, 3, 6,18, 8,-1, 2, 7 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17, 1, 7, 2, 3,18,-2, 3, 6, 4, 2, 7, 8, 5, 3,17 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 17,18, 3,18, 2, 5, 4, 7,-3, 6, 3, 2,18, 4, 7, 3 } },
+ { 1, 1, { 1, 7, 4, 5, 3, 4, 5, 1, 3, 6, 3, 2, 4, 8,-2, 7 } },
+ { 0, 1, { 1,18,-1,-2,18, 3, 2,-1, 6, 7, 4, 5, 3,18, 2,-3 } },
+ { 1, 1, { 18,18,-1, 3, 6,18, 5, 4, 8, 2, 3, 6,18, 7, 4,-2 } },
+ { 0, 2, { 18,18, 2, 6,18, 2,18, 5, 3,18, 2, 4, 7, 8, 3,18 } },
+ { 1, 1, { 3,18,18, 5,18, 6, 2, 4, 7,-2,18, 5, 8, 6, 3, 2 } },
+ { 0, 1, { 18,-2, 7, 1, 3, 2,-3, 4, 6,-2, 7, 8, 1, 5, 4, 3 } },
+ { 1, 1, { 18,-2,18, 2, 5,18, 3,-2, 4, 7, 2,-1, 8, 6, 5, 1 } },
+ { 1, 1, { 17,17, 5,18, 4, 1, 2, 8, 6, 4,-2, 3, 5,-1, 1, 8 } },
+ { 0, 2, { 1, 2,17, 3, 7,18, 2,-1, 4, 5,18, 2, 7, 3, 6, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 3, 6,17, 8, 7, 5,18,-1, 1, 2, 3, 4, 2, 6, 8, 1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 2, { 18,18,18, 2,-2, 3, 6, 4, 8,18, 2, 5, 7, 4, 3, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 18, 1, 8, 3, 5, 6, 4,-1, 8, 3, 7,18, 2, 5, 8, 4 } },
+ { 1, 1, { 17,18, 5, 2, 4, 3, 1, 6,-2, 1, 3, 2, 4, 5,-1,17 } },
+ { 1, 1, { 18,17, 2,18, 3,-3, 7, 2, 6, 4, 3, 5,18, 8, 2,-2 } },
+ { 1, 1, { 18,17,18, 4, 3, 5,-1,18, 2, 7, 8, 4, 6, 3,18, 5 } },
+ { 0, 1, { 18,17,18,-2, 2,-3, 3, 4, 8, 5, 2,18, 6, 3, 7,-2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 17,18, 8, 3, 4, 6,18, 5,-2, 3, 8, 5, 2, 4, 7, 6 } },
+ { 0, 1, { 18,-2, 3, 5, 1, 7, 3, 2, 6,-3, 4, 1, 5, 8, 3,-2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 3,17,18, 5,-1,18, 2, 6, 7,18, 5, 3,-3,-1, 6, 2 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 3, { 18,17,-2, 3,-1,18, 2, 5, 3, 7, 6, 2, 4, 8,18, 5 } },
+ { 0, 1, { 18,-1,18, 2,18, 3, 5,18, 2, 8,18, 5, 4,-1, 6, 2 } },
+ { 1, 2, { 18,-2,18,18, 2, 3, 4,-3, 2, 5,18, 7, 4, 3, 8, 6 } },
+ { 0, 2, { 17,-1,18, 2,-1, 1, 7, 3, 8, 5,-2, 4, 1, 2,-3, 6 } },
+ { 0, 1, { 18,17, 2,18, 2,18, 6, 7, 4, 3,18, 5, 2,-2,17, 8 } },
+ { 0, 3, { 18,17, 2, 3,-3,-1,18, 2, 4, 5,18, 7, 3, 2,-3, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 2, { 3,18,18,18, 2, 6, 5,18, 7, 2, 4, 6,18, 5, 3, 8 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 18,18, 3, 6, 3,-2, 2,18, 5,-1, 7, 3, 4,-2, 2, 6 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 1, 1, { 18,17,18,18,-2, 2, 3,-3,18, 6, 4, 2,-2, 8, 3, 7 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { 18,18,18, 4, 2, 7, 8,18, 3, 2,-2, 4, 7, 6,17, 5 } },
+ { 1, 1, { 18,18,-1,-2, 8, 3,18, 6, 3, 5, 8, 2, 4, 7, 1, 6 } },
+ { 1, 1, { 1,-3, 3,18,18, 2,-1, 3, 6, 5,18, 4, 7,-2, 8, 3 } },
+ { 1, 1, { 1,18, 4, 2, 5,18, 1, 3,-1, 6, 1, 4, 8, 2, 5, 1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+ { 0, 1, { -1,18,18, 2,18, 3, 5,18, 2,18, 6, 8, 4, 5, 7,-1 } },
+};
+
+static const WavPackDecorrSpec const *decorr_filters[] = {
+ &fast_specs[0], &default_specs[0], &high_specs[0], &very_high_specs[0],
+};
+
+static const uint16_t decorr_filter_sizes[] = {
+ FF_ARRAY_ELEMS(fast_specs),
+ FF_ARRAY_ELEMS(default_specs),
+ FF_ARRAY_ELEMS(high_specs),
+ FF_ARRAY_ELEMS(very_high_specs),
+};
+
+static const uint8_t decorr_filter_nterms[] = { 2, 5, 10, 16 };
+
+static const int8_t nbits_table[] = {
+ 0, 1, 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7,
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
+ 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8
+};
+
+#endif /* AVCODEC_WAVPACKENC_H */
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