[FFmpeg-cvslog] golomb: Convert to the new bitstream reader
Diego Biurrun
git at videolan.org
Tue Sep 26 21:07:31 EEST 2017
ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Mon Jan 30 20:24:38 2017 +0100| [d4c2103bd30ff6ceea70c3696ae88a7d2ea72493] | committer: Diego Biurrun
golomb: Convert to the new bitstream reader
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d4c2103bd30ff6ceea70c3696ae88a7d2ea72493
---
libavcodec/aic.c | 2 +-
libavcodec/cavs.c | 2 +-
libavcodec/cavsdec.c | 2 +-
libavcodec/dirac.c | 2 +-
libavcodec/ffv1dec.c | 3 +-
libavcodec/ffv1enc.c | 2 +-
libavcodec/fic.c | 3 +-
libavcodec/flacdec.c | 2 +-
libavcodec/flacenc.c | 2 +-
libavcodec/golomb.h | 190 ++++++---------
libavcodec/golomb_legacy.h | 573 +++++++++++++++++++++++++++++++++++++++++++++
libavcodec/h264_cavlc.c | 2 +-
libavcodec/h264_parse.c | 2 +-
libavcodec/h264_parser.c | 2 +-
libavcodec/h264_ps.c | 3 +-
libavcodec/h264_refs.c | 2 +-
libavcodec/h264_sei.c | 2 +-
libavcodec/h264_slice.c | 2 +-
libavcodec/h264dec.c | 2 +-
libavcodec/hevc_parser.c | 2 +-
libavcodec/hevc_ps.c | 2 +-
libavcodec/hevc_ps_enc.c | 2 +-
libavcodec/hevc_sei.c | 2 +-
libavcodec/hevcdec.c | 2 +-
libavcodec/jpeglsdec.c | 2 +-
libavcodec/jpeglsenc.c | 2 +-
libavcodec/loco.c | 2 +-
libavcodec/ralf.c | 2 +-
libavcodec/rv30.c | 2 +-
libavcodec/rv34.c | 2 +-
libavcodec/rv40.c | 2 +-
libavcodec/shorten.c | 2 +-
libavcodec/svq3.c | 3 +-
libavcodec/tests/golomb.c | 22 +-
libavformat/hevc.c | 2 +-
35 files changed, 693 insertions(+), 160 deletions(-)
diff --git a/libavcodec/aic.c b/libavcodec/aic.c
index 2c9b6f8098..405ebf12d5 100644
--- a/libavcodec/aic.c
+++ b/libavcodec/aic.c
@@ -26,7 +26,7 @@
#include "bytestream.h"
#include "internal.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "idctdsp.h"
#include "thread.h"
#include "unary_legacy.h"
diff --git a/libavcodec/cavs.c b/libavcodec/cavs.c
index cf66629ffd..bf1a59a6f0 100644
--- a/libavcodec/cavs.c
+++ b/libavcodec/cavs.c
@@ -27,7 +27,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "h264chroma.h"
#include "idctdsp.h"
#include "internal.h"
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c
index 1c4f276373..5a28fc04ed 100644
--- a/libavcodec/cavsdec.c
+++ b/libavcodec/cavsdec.c
@@ -27,7 +27,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "cavs.h"
#include "internal.h"
#include "mpeg12data.h"
diff --git a/libavcodec/dirac.c b/libavcodec/dirac.c
index 142af20579..cce9439d44 100644
--- a/libavcodec/dirac.c
+++ b/libavcodec/dirac.c
@@ -29,7 +29,7 @@
#include "avcodec.h"
#include "dirac.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "mpeg12data.h"
diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c
index d3169ec7c5..2ebd6864a1 100644
--- a/libavcodec/ffv1dec.c
+++ b/libavcodec/ffv1dec.c
@@ -31,12 +31,13 @@
#include "libavutil/opt.h"
#include "libavutil/imgutils.h"
#include "libavutil/timer.h"
+
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "get_bits.h"
#include "put_bits.h"
#include "rangecoder.h"
-#include "golomb.h"
#include "mathops.h"
#include "ffv1.h"
diff --git a/libavcodec/ffv1enc.c b/libavcodec/ffv1enc.c
index 0eeccfffb4..adf70d8a6b 100644
--- a/libavcodec/ffv1enc.c
+++ b/libavcodec/ffv1enc.c
@@ -33,10 +33,10 @@
#include "libavutil/imgutils.h"
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "put_bits.h"
#include "rangecoder.h"
-#include "golomb.h"
#include "mathops.h"
#include "ffv1.h"
diff --git a/libavcodec/fic.c b/libavcodec/fic.c
index b1286ebe65..1804104916 100644
--- a/libavcodec/fic.c
+++ b/libavcodec/fic.c
@@ -22,10 +22,11 @@
*/
#include "libavutil/common.h"
+
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "get_bits.h"
-#include "golomb.h"
typedef struct FICThreadContext {
DECLARE_ALIGNED(16, int16_t, block)[64];
diff --git a/libavcodec/flacdec.c b/libavcodec/flacdec.c
index 7af71f3c0c..78be2adab3 100644
--- a/libavcodec/flacdec.c
+++ b/libavcodec/flacdec.c
@@ -37,7 +37,7 @@
#include "internal.h"
#include "get_bits.h"
#include "bytestream.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "flac.h"
#include "flacdata.h"
#include "flacdsp.h"
diff --git a/libavcodec/flacenc.c b/libavcodec/flacenc.c
index 67f899f712..0c1e6b7673 100644
--- a/libavcodec/flacenc.c
+++ b/libavcodec/flacenc.c
@@ -26,7 +26,7 @@
#include "avcodec.h"
#include "bswapdsp.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "lpc.h"
#include "flac.h"
diff --git a/libavcodec/golomb.h b/libavcodec/golomb.h
index 9fafbcda70..648f9243fc 100644
--- a/libavcodec/golomb.h
+++ b/libavcodec/golomb.h
@@ -32,7 +32,7 @@
#include <stdint.h>
-#include "get_bits.h"
+#include "bitstream.h"
#include "put_bits.h"
#define INVALID_VLC 0x80000000
@@ -50,26 +50,22 @@ extern const uint8_t ff_interleaved_dirac_golomb_vlc_code[256];
/**
* read unsigned exp golomb code.
*/
-static inline int get_ue_golomb(GetBitContext *gb)
+static inline int get_ue_golomb(BitstreamContext *bc)
{
unsigned int buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
if (buf >= (1 << 27)) {
buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, ff_golomb_vlc_len[buf]);
return ff_ue_golomb_vlc_code[buf];
} else {
int log = 2 * av_log2(buf) - 31;
buf >>= log;
buf--;
- LAST_SKIP_BITS(re, gb, 32 - log);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, 32 - log);
return buf;
}
@@ -78,48 +74,42 @@ static inline int get_ue_golomb(GetBitContext *gb)
/**
* Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
*/
-static inline unsigned get_ue_golomb_long(GetBitContext *gb)
+static inline unsigned get_ue_golomb_long(BitstreamContext *bc)
{
unsigned buf, log;
- buf = show_bits_long(gb, 32);
+ buf = bitstream_peek(bc, 32);
log = 31 - av_log2(buf);
- skip_bits_long(gb, log);
+ bitstream_skip(bc, log);
- return get_bits_long(gb, log + 1) - 1;
+ return bitstream_read(bc, log + 1) - 1;
}
/**
* read unsigned exp golomb code, constraint to a max of 31.
* the return value is undefined if the stored value exceeds 31.
*/
-static inline int get_ue_golomb_31(GetBitContext *gb)
+static inline int get_ue_golomb_31(BitstreamContext *bc)
{
unsigned int buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, ff_golomb_vlc_len[buf]);
return ff_ue_golomb_vlc_code[buf];
}
-static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
+static inline unsigned get_interleaved_ue_golomb(BitstreamContext *bc)
{
uint32_t buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
if (buf & 0xAA800000) {
buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, ff_interleaved_golomb_vlc_len[buf]);
return ff_interleaved_ue_golomb_vlc_code[buf];
} else {
@@ -127,8 +117,7 @@ static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
do {
buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb,
- FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
+ bitstream_skip(bc, FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
if (ff_interleaved_golomb_vlc_len[buf] != 9) {
ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
@@ -136,11 +125,9 @@ static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
break;
}
ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
- } while (BITS_AVAILABLE(re, gb));
+ buf = bitstream_peek(bc, 32);
+ } while (bitstream_bits_left(bc) > 0);
- CLOSE_READER(re, gb);
return ret - 1;
}
}
@@ -148,54 +135,50 @@ static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
/**
* read unsigned truncated exp golomb code.
*/
-static inline int get_te0_golomb(GetBitContext *gb, int range)
+static inline int get_te0_golomb(BitstreamContext *bc, int range)
{
assert(range >= 1);
if (range == 1)
return 0;
else if (range == 2)
- return get_bits1(gb) ^ 1;
+ return bitstream_read_bit(bc) ^ 1;
else
- return get_ue_golomb(gb);
+ return get_ue_golomb(bc);
}
/**
* read unsigned truncated exp golomb code.
*/
-static inline int get_te_golomb(GetBitContext *gb, int range)
+static inline int get_te_golomb(BitstreamContext *bc, int range)
{
assert(range >= 1);
if (range == 2)
- return get_bits1(gb) ^ 1;
+ return bitstream_read_bit(bc) ^ 1;
else
- return get_ue_golomb(gb);
+ return get_ue_golomb(bc);
}
/**
* read signed exp golomb code.
*/
-static inline int get_se_golomb(GetBitContext *gb)
+static inline int get_se_golomb(BitstreamContext *bc)
{
unsigned int buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
if (buf >= (1 << 27)) {
buf >>= 32 - 9;
- LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, ff_golomb_vlc_len[buf]);
return ff_se_golomb_vlc_code[buf];
} else {
int log = 2 * av_log2(buf) - 31;
buf >>= log;
- LAST_SKIP_BITS(re, gb, 32 - log);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, 32 - log);
if (buf & 1)
buf = -(buf >> 1);
@@ -206,9 +189,9 @@ static inline int get_se_golomb(GetBitContext *gb)
}
}
-static inline int get_se_golomb_long(GetBitContext *gb)
+static inline int get_se_golomb_long(BitstreamContext *bc)
{
- unsigned int buf = get_ue_golomb_long(gb);
+ unsigned int buf = get_ue_golomb_long(bc);
if (buf & 1)
buf = (buf + 1) >> 1;
@@ -218,25 +201,21 @@ static inline int get_se_golomb_long(GetBitContext *gb)
return buf;
}
-static inline int get_interleaved_se_golomb(GetBitContext *gb)
+static inline int get_interleaved_se_golomb(BitstreamContext *bc)
{
unsigned int buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
if (buf & 0xAA800000) {
buf >>= 32 - 8;
- LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, ff_interleaved_golomb_vlc_len[buf]);
return ff_interleaved_se_golomb_vlc_code[buf];
} else {
int log;
- LAST_SKIP_BITS(re, gb, 8);
- UPDATE_CACHE(re, gb);
- buf |= 1 | (GET_CACHE(re, gb) >> 8);
+ bitstream_skip(bc, 8);
+ buf |= 1 | bitstream_peek(bc, 24);
if ((buf & 0xAAAAAAAA) == 0)
return INVALID_VLC;
@@ -244,25 +223,20 @@ static inline int get_interleaved_se_golomb(GetBitContext *gb)
for (log = 31; (buf & 0x80000000) == 0; log--)
buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
- LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, 63 - 2 * log - 8);
return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
}
}
-static inline int dirac_get_se_golomb(GetBitContext *gb)
+static inline int dirac_get_se_golomb(BitstreamContext *bc)
{
- uint32_t ret = get_interleaved_ue_golomb(gb);
+ uint32_t ret = get_interleaved_ue_golomb(bc);
if (ret) {
uint32_t buf;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = SHOW_SBITS(re, gb, 1);
- LAST_SKIP_BITS(re, gb, 1);
+ buf = bitstream_read_signed(bc, 1);
ret = (ret ^ buf) - buf;
- CLOSE_READER(re, gb);
}
return ret;
@@ -271,33 +245,25 @@ static inline int dirac_get_se_golomb(GetBitContext *gb)
/**
* read unsigned golomb rice code (ffv1).
*/
-static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
+static inline int get_ur_golomb(BitstreamContext *bc, int k, int limit,
int esc_len)
{
unsigned int buf;
int log;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
log = av_log2(buf);
if (log > 31 - limit) {
buf >>= log - k;
buf += (30 - log) << k;
- LAST_SKIP_BITS(re, gb, 32 + k - log);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, 32 + k - log);
return buf;
} else {
- LAST_SKIP_BITS(re, gb, limit);
- UPDATE_CACHE(re, gb);
-
- buf = SHOW_UBITS(re, gb, esc_len);
-
- LAST_SKIP_BITS(re, gb, esc_len);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, limit);
+ buf = bitstream_read(bc, esc_len);
return buf + limit - 1;
}
@@ -306,48 +272,38 @@ static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
/**
* read unsigned golomb rice code (jpegls).
*/
-static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
+static inline int get_ur_golomb_jpegls(BitstreamContext *bc, int k, int limit,
int esc_len)
{
unsigned int buf;
int log;
- OPEN_READER(re, gb);
- UPDATE_CACHE(re, gb);
- buf = GET_CACHE(re, gb);
+ buf = bitstream_peek(bc, 32);
log = av_log2(buf);
- if (log - k >= 32 - MIN_CACHE_BITS + (MIN_CACHE_BITS == 32) &&
- 32 - log < limit) {
+ if (log - k >= 1 && 32 - log < limit) {
buf >>= log - k;
buf += (30 - log) << k;
- LAST_SKIP_BITS(re, gb, 32 + k - log);
- CLOSE_READER(re, gb);
+ bitstream_skip(bc, 32 + k - log);
return buf;
} else {
int i;
- for (i = 0; i < limit && SHOW_UBITS(re, gb, 1) == 0 && BITS_AVAILABLE(re, gb); i++) {
- LAST_SKIP_BITS(re, gb, 1);
- UPDATE_CACHE(re, gb);
- }
- SKIP_BITS(re, gb, 1);
+ for (i = 0; i < limit && bitstream_peek(bc, 1) == 0 && bitstream_bits_left(bc) > 0; i++)
+ bitstream_skip(bc, 1);
+ bitstream_skip(bc, 1);
if (i < limit - 1) {
if (k) {
- buf = SHOW_UBITS(re, gb, k);
- LAST_SKIP_BITS(re, gb, k);
+ buf = bitstream_read(bc, k);
} else {
buf = 0;
}
- CLOSE_READER(re, gb);
return buf + (i << k);
} else if (i == limit - 1) {
- buf = SHOW_UBITS(re, gb, esc_len);
- LAST_SKIP_BITS(re, gb, esc_len);
- CLOSE_READER(re, gb);
+ buf = bitstream_read(bc, esc_len);
return buf + 1;
} else
@@ -358,10 +314,10 @@ static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
/**
* read signed golomb rice code (ffv1).
*/
-static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
+static inline int get_sr_golomb(BitstreamContext *bc, int k, int limit,
int esc_len)
{
- int v = get_ur_golomb(gb, k, limit, esc_len);
+ int v = get_ur_golomb(bc, k, limit, esc_len);
v++;
if (v & 1)
@@ -375,27 +331,27 @@ static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
/**
* read signed golomb rice code (flac).
*/
-static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit,
+static inline int get_sr_golomb_flac(BitstreamContext *bc, int k, int limit,
int esc_len)
{
- int v = get_ur_golomb_jpegls(gb, k, limit, esc_len);
+ int v = get_ur_golomb_jpegls(bc, k, limit, esc_len);
return (v >> 1) ^ -(v & 1);
}
/**
* read unsigned golomb rice code (shorten).
*/
-static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k)
+static inline unsigned int get_ur_golomb_shorten(BitstreamContext *bc, int k)
{
- return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
+ return get_ur_golomb_jpegls(bc, k, INT_MAX, 0);
}
/**
* read signed golomb rice code (shorten).
*/
-static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
+static inline int get_sr_golomb_shorten(BitstreamContext *bc, int k)
{
- int uvar = get_ur_golomb_jpegls(gb, k + 1, INT_MAX, 0);
+ int uvar = get_ur_golomb_jpegls(bc, k + 1, INT_MAX, 0);
if (uvar & 1)
return ~(uvar >> 1);
else
@@ -404,13 +360,13 @@ static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
#ifdef TRACE
-static inline int get_ue(GetBitContext *s, const char *file, const char *func,
+static inline int get_ue(BitstreamContext *s, const char *file, const char *func,
int line)
{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
+ int show = bitstream_peek(s, 24);
+ int pos = bitstream_tell(s);
int i = get_ue_golomb(s);
- int len = get_bits_count(s) - pos;
+ int len = bitstream_tell(s) - pos;
int bits = show >> (24 - len);
av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue @%5d in %s %s:%d\n",
@@ -419,13 +375,13 @@ static inline int get_ue(GetBitContext *s, const char *file, const char *func,
return i;
}
-static inline int get_se(GetBitContext *s, const char *file, const char *func,
+static inline int get_se(BitstreamContext *s, const char *file, const char *func,
int line)
{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
+ int show = bitstream_peek(s, 24);
+ int pos = bitstream_tell(s);
int i = get_se_golomb(s);
- int len = get_bits_count(s) - pos;
+ int len = bitstream_tell(s) - pos;
int bits = show >> (24 - len);
av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se @%5d in %s %s:%d\n",
@@ -434,13 +390,13 @@ static inline int get_se(GetBitContext *s, const char *file, const char *func,
return i;
}
-static inline int get_te(GetBitContext *s, int r, char *file, const char *func,
+static inline int get_te(BitstreamContext *s, int r, char *file, const char *func,
int line)
{
- int show = show_bits(s, 24);
- int pos = get_bits_count(s);
+ int show = bitstream_peek(s, 24);
+ int pos = bitstream_tell(s);
int i = get_te0_golomb(s, r);
- int len = get_bits_count(s) - pos;
+ int len = bitstream_tell(s) - pos;
int bits = show >> (24 - len);
av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te @%5d in %s %s:%d\n",
diff --git a/libavcodec/golomb_legacy.h b/libavcodec/golomb_legacy.h
new file mode 100644
index 0000000000..9fafbcda70
--- /dev/null
+++ b/libavcodec/golomb_legacy.h
@@ -0,0 +1,573 @@
+/*
+ * exp golomb vlc stuff
+ * Copyright (c) 2003 Michael Niedermayer <michaelni at gmx.at>
+ * Copyright (c) 2004 Alex Beregszaszi
+ *
+ * This file is part of Libav.
+ *
+ * Libav 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.
+ *
+ * Libav 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 Libav; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+/**
+ * @file
+ * @brief
+ * exp golomb vlc stuff
+ * @author Michael Niedermayer <michaelni at gmx.at> and Alex Beregszaszi
+ */
+
+#ifndef AVCODEC_GOLOMB_H
+#define AVCODEC_GOLOMB_H
+
+#include <stdint.h>
+
+#include "get_bits.h"
+#include "put_bits.h"
+
+#define INVALID_VLC 0x80000000
+
+extern const uint8_t ff_golomb_vlc_len[512];
+extern const uint8_t ff_ue_golomb_vlc_code[512];
+extern const int8_t ff_se_golomb_vlc_code[512];
+extern const uint8_t ff_ue_golomb_len[256];
+
+extern const uint8_t ff_interleaved_golomb_vlc_len[256];
+extern const uint8_t ff_interleaved_ue_golomb_vlc_code[256];
+extern const int8_t ff_interleaved_se_golomb_vlc_code[256];
+extern const uint8_t ff_interleaved_dirac_golomb_vlc_code[256];
+
+/**
+ * read unsigned exp golomb code.
+ */
+static inline int get_ue_golomb(GetBitContext *gb)
+{
+ unsigned int buf;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ if (buf >= (1 << 27)) {
+ buf >>= 32 - 9;
+ LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+ CLOSE_READER(re, gb);
+
+ return ff_ue_golomb_vlc_code[buf];
+ } else {
+ int log = 2 * av_log2(buf) - 31;
+ buf >>= log;
+ buf--;
+ LAST_SKIP_BITS(re, gb, 32 - log);
+ CLOSE_READER(re, gb);
+
+ return buf;
+ }
+}
+
+/**
+ * Read an unsigned Exp-Golomb code in the range 0 to UINT32_MAX-1.
+ */
+static inline unsigned get_ue_golomb_long(GetBitContext *gb)
+{
+ unsigned buf, log;
+
+ buf = show_bits_long(gb, 32);
+ log = 31 - av_log2(buf);
+ skip_bits_long(gb, log);
+
+ return get_bits_long(gb, log + 1) - 1;
+}
+
+/**
+ * read unsigned exp golomb code, constraint to a max of 31.
+ * the return value is undefined if the stored value exceeds 31.
+ */
+static inline int get_ue_golomb_31(GetBitContext *gb)
+{
+ unsigned int buf;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ buf >>= 32 - 9;
+ LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+ CLOSE_READER(re, gb);
+
+ return ff_ue_golomb_vlc_code[buf];
+}
+
+static inline unsigned get_interleaved_ue_golomb(GetBitContext *gb)
+{
+ uint32_t buf;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ if (buf & 0xAA800000) {
+ buf >>= 32 - 8;
+ LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
+ CLOSE_READER(re, gb);
+
+ return ff_interleaved_ue_golomb_vlc_code[buf];
+ } else {
+ unsigned ret = 1;
+
+ do {
+ buf >>= 32 - 8;
+ LAST_SKIP_BITS(re, gb,
+ FFMIN(ff_interleaved_golomb_vlc_len[buf], 8));
+
+ if (ff_interleaved_golomb_vlc_len[buf] != 9) {
+ ret <<= (ff_interleaved_golomb_vlc_len[buf] - 1) >> 1;
+ ret |= ff_interleaved_dirac_golomb_vlc_code[buf];
+ break;
+ }
+ ret = (ret << 4) | ff_interleaved_dirac_golomb_vlc_code[buf];
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+ } while (BITS_AVAILABLE(re, gb));
+
+ CLOSE_READER(re, gb);
+ return ret - 1;
+ }
+}
+
+/**
+ * read unsigned truncated exp golomb code.
+ */
+static inline int get_te0_golomb(GetBitContext *gb, int range)
+{
+ assert(range >= 1);
+
+ if (range == 1)
+ return 0;
+ else if (range == 2)
+ return get_bits1(gb) ^ 1;
+ else
+ return get_ue_golomb(gb);
+}
+
+/**
+ * read unsigned truncated exp golomb code.
+ */
+static inline int get_te_golomb(GetBitContext *gb, int range)
+{
+ assert(range >= 1);
+
+ if (range == 2)
+ return get_bits1(gb) ^ 1;
+ else
+ return get_ue_golomb(gb);
+}
+
+/**
+ * read signed exp golomb code.
+ */
+static inline int get_se_golomb(GetBitContext *gb)
+{
+ unsigned int buf;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ if (buf >= (1 << 27)) {
+ buf >>= 32 - 9;
+ LAST_SKIP_BITS(re, gb, ff_golomb_vlc_len[buf]);
+ CLOSE_READER(re, gb);
+
+ return ff_se_golomb_vlc_code[buf];
+ } else {
+ int log = 2 * av_log2(buf) - 31;
+ buf >>= log;
+
+ LAST_SKIP_BITS(re, gb, 32 - log);
+ CLOSE_READER(re, gb);
+
+ if (buf & 1)
+ buf = -(buf >> 1);
+ else
+ buf = (buf >> 1);
+
+ return buf;
+ }
+}
+
+static inline int get_se_golomb_long(GetBitContext *gb)
+{
+ unsigned int buf = get_ue_golomb_long(gb);
+
+ if (buf & 1)
+ buf = (buf + 1) >> 1;
+ else
+ buf = -(buf >> 1);
+
+ return buf;
+}
+
+static inline int get_interleaved_se_golomb(GetBitContext *gb)
+{
+ unsigned int buf;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ if (buf & 0xAA800000) {
+ buf >>= 32 - 8;
+ LAST_SKIP_BITS(re, gb, ff_interleaved_golomb_vlc_len[buf]);
+ CLOSE_READER(re, gb);
+
+ return ff_interleaved_se_golomb_vlc_code[buf];
+ } else {
+ int log;
+ LAST_SKIP_BITS(re, gb, 8);
+ UPDATE_CACHE(re, gb);
+ buf |= 1 | (GET_CACHE(re, gb) >> 8);
+
+ if ((buf & 0xAAAAAAAA) == 0)
+ return INVALID_VLC;
+
+ for (log = 31; (buf & 0x80000000) == 0; log--)
+ buf = (buf << 2) - ((buf << log) >> (log - 1)) + (buf >> 30);
+
+ LAST_SKIP_BITS(re, gb, 63 - 2 * log - 8);
+ CLOSE_READER(re, gb);
+
+ return (signed) (((((buf << log) >> log) - 1) ^ -(buf & 0x1)) + 1) >> 1;
+ }
+}
+
+static inline int dirac_get_se_golomb(GetBitContext *gb)
+{
+ uint32_t ret = get_interleaved_ue_golomb(gb);
+
+ if (ret) {
+ uint32_t buf;
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = SHOW_SBITS(re, gb, 1);
+ LAST_SKIP_BITS(re, gb, 1);
+ ret = (ret ^ buf) - buf;
+ CLOSE_READER(re, gb);
+ }
+
+ return ret;
+}
+
+/**
+ * read unsigned golomb rice code (ffv1).
+ */
+static inline int get_ur_golomb(GetBitContext *gb, int k, int limit,
+ int esc_len)
+{
+ unsigned int buf;
+ int log;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ log = av_log2(buf);
+
+ if (log > 31 - limit) {
+ buf >>= log - k;
+ buf += (30 - log) << k;
+ LAST_SKIP_BITS(re, gb, 32 + k - log);
+ CLOSE_READER(re, gb);
+
+ return buf;
+ } else {
+ LAST_SKIP_BITS(re, gb, limit);
+ UPDATE_CACHE(re, gb);
+
+ buf = SHOW_UBITS(re, gb, esc_len);
+
+ LAST_SKIP_BITS(re, gb, esc_len);
+ CLOSE_READER(re, gb);
+
+ return buf + limit - 1;
+ }
+}
+
+/**
+ * read unsigned golomb rice code (jpegls).
+ */
+static inline int get_ur_golomb_jpegls(GetBitContext *gb, int k, int limit,
+ int esc_len)
+{
+ unsigned int buf;
+ int log;
+
+ OPEN_READER(re, gb);
+ UPDATE_CACHE(re, gb);
+ buf = GET_CACHE(re, gb);
+
+ log = av_log2(buf);
+
+ if (log - k >= 32 - MIN_CACHE_BITS + (MIN_CACHE_BITS == 32) &&
+ 32 - log < limit) {
+ buf >>= log - k;
+ buf += (30 - log) << k;
+ LAST_SKIP_BITS(re, gb, 32 + k - log);
+ CLOSE_READER(re, gb);
+
+ return buf;
+ } else {
+ int i;
+ for (i = 0; i < limit && SHOW_UBITS(re, gb, 1) == 0 && BITS_AVAILABLE(re, gb); i++) {
+ LAST_SKIP_BITS(re, gb, 1);
+ UPDATE_CACHE(re, gb);
+ }
+ SKIP_BITS(re, gb, 1);
+
+ if (i < limit - 1) {
+ if (k) {
+ buf = SHOW_UBITS(re, gb, k);
+ LAST_SKIP_BITS(re, gb, k);
+ } else {
+ buf = 0;
+ }
+
+ CLOSE_READER(re, gb);
+ return buf + (i << k);
+ } else if (i == limit - 1) {
+ buf = SHOW_UBITS(re, gb, esc_len);
+ LAST_SKIP_BITS(re, gb, esc_len);
+ CLOSE_READER(re, gb);
+
+ return buf + 1;
+ } else
+ return -1;
+ }
+}
+
+/**
+ * read signed golomb rice code (ffv1).
+ */
+static inline int get_sr_golomb(GetBitContext *gb, int k, int limit,
+ int esc_len)
+{
+ int v = get_ur_golomb(gb, k, limit, esc_len);
+
+ v++;
+ if (v & 1)
+ return v >> 1;
+ else
+ return -(v >> 1);
+
+// return (v>>1) ^ -(v&1);
+}
+
+/**
+ * read signed golomb rice code (flac).
+ */
+static inline int get_sr_golomb_flac(GetBitContext *gb, int k, int limit,
+ int esc_len)
+{
+ int v = get_ur_golomb_jpegls(gb, k, limit, esc_len);
+ return (v >> 1) ^ -(v & 1);
+}
+
+/**
+ * read unsigned golomb rice code (shorten).
+ */
+static inline unsigned int get_ur_golomb_shorten(GetBitContext *gb, int k)
+{
+ return get_ur_golomb_jpegls(gb, k, INT_MAX, 0);
+}
+
+/**
+ * read signed golomb rice code (shorten).
+ */
+static inline int get_sr_golomb_shorten(GetBitContext *gb, int k)
+{
+ int uvar = get_ur_golomb_jpegls(gb, k + 1, INT_MAX, 0);
+ if (uvar & 1)
+ return ~(uvar >> 1);
+ else
+ return uvar >> 1;
+}
+
+#ifdef TRACE
+
+static inline int get_ue(GetBitContext *s, const char *file, const char *func,
+ int line)
+{
+ int show = show_bits(s, 24);
+ int pos = get_bits_count(s);
+ int i = get_ue_golomb(s);
+ int len = get_bits_count(s) - pos;
+ int bits = show >> (24 - len);
+
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d ue @%5d in %s %s:%d\n",
+ bits, len, i, pos, file, func, line);
+
+ return i;
+}
+
+static inline int get_se(GetBitContext *s, const char *file, const char *func,
+ int line)
+{
+ int show = show_bits(s, 24);
+ int pos = get_bits_count(s);
+ int i = get_se_golomb(s);
+ int len = get_bits_count(s) - pos;
+ int bits = show >> (24 - len);
+
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d se @%5d in %s %s:%d\n",
+ bits, len, i, pos, file, func, line);
+
+ return i;
+}
+
+static inline int get_te(GetBitContext *s, int r, char *file, const char *func,
+ int line)
+{
+ int show = show_bits(s, 24);
+ int pos = get_bits_count(s);
+ int i = get_te0_golomb(s, r);
+ int len = get_bits_count(s) - pos;
+ int bits = show >> (24 - len);
+
+ av_log(NULL, AV_LOG_DEBUG, "%5d %2d %3d te @%5d in %s %s:%d\n",
+ bits, len, i, pos, file, func, line);
+
+ return i;
+}
+
+#define get_ue_golomb(a) get_ue(a, __FILE__, __func__, __LINE__)
+#define get_se_golomb(a) get_se(a, __FILE__, __func__, __LINE__)
+#define get_te_golomb(a, r) get_te(a, r, __FILE__, __func__, __LINE__)
+#define get_te0_golomb(a, r) get_te(a, r, __FILE__, __func__, __LINE__)
+
+#endif /* TRACE */
+
+/**
+ * write unsigned exp golomb code.
+ */
+static inline void set_ue_golomb(PutBitContext *pb, int i)
+{
+ assert(i >= 0);
+
+ if (i < 256)
+ put_bits(pb, ff_ue_golomb_len[i], i + 1);
+ else {
+ int e = av_log2(i + 1);
+ put_bits(pb, 2 * e + 1, i + 1);
+ }
+}
+
+/**
+ * write truncated unsigned exp golomb code.
+ */
+static inline void set_te_golomb(PutBitContext *pb, int i, int range)
+{
+ assert(range >= 1);
+ assert(i <= range);
+
+ if (range == 2)
+ put_bits(pb, 1, i ^ 1);
+ else
+ set_ue_golomb(pb, i);
+}
+
+/**
+ * write signed exp golomb code. 16 bits at most.
+ */
+static inline void set_se_golomb(PutBitContext *pb, int i)
+{
+ i = 2 * i - 1;
+ if (i < 0)
+ i ^= -1; //FIXME check if gcc does the right thing
+ set_ue_golomb(pb, i);
+}
+
+/**
+ * write unsigned golomb rice code (ffv1).
+ */
+static inline void set_ur_golomb(PutBitContext *pb, int i, int k, int limit,
+ int esc_len)
+{
+ int e;
+
+ assert(i >= 0);
+
+ e = i >> k;
+ if (e < limit)
+ put_bits(pb, e + k + 1, (1 << k) + (i & ((1 << k) - 1)));
+ else
+ put_bits(pb, limit + esc_len, i - limit + 1);
+}
+
+/**
+ * write unsigned golomb rice code (jpegls).
+ */
+static inline void set_ur_golomb_jpegls(PutBitContext *pb, int i, int k,
+ int limit, int esc_len)
+{
+ int e;
+
+ assert(i >= 0);
+
+ e = (i >> k) + 1;
+ if (e < limit) {
+ while (e > 31) {
+ put_bits(pb, 31, 0);
+ e -= 31;
+ }
+ put_bits(pb, e, 1);
+ if (k)
+ put_sbits(pb, k, i);
+ } else {
+ while (limit > 31) {
+ put_bits(pb, 31, 0);
+ limit -= 31;
+ }
+ put_bits(pb, limit, 1);
+ put_bits(pb, esc_len, i - 1);
+ }
+}
+
+/**
+ * write signed golomb rice code (ffv1).
+ */
+static inline void set_sr_golomb(PutBitContext *pb, int i, int k, int limit,
+ int esc_len)
+{
+ int v;
+
+ v = -2 * i - 1;
+ v ^= (v >> 31);
+
+ set_ur_golomb(pb, v, k, limit, esc_len);
+}
+
+/**
+ * write signed golomb rice code (flac).
+ */
+static inline void set_sr_golomb_flac(PutBitContext *pb, int i, int k,
+ int limit, int esc_len)
+{
+ int v;
+
+ v = -2 * i - 1;
+ v ^= (v >> 31);
+
+ set_ur_golomb_jpegls(pb, v, k, limit, esc_len);
+}
+
+#endif /* AVCODEC_GOLOMB_H */
diff --git a/libavcodec/h264_cavlc.c b/libavcodec/h264_cavlc.c
index 4fa2de0184..9b950ede20 100644
--- a/libavcodec/h264_cavlc.c
+++ b/libavcodec/h264_cavlc.c
@@ -32,7 +32,7 @@
#include "h264dec.h"
#include "h264_mvpred.h"
#include "h264data.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "mpegutils.h"
#include <assert.h>
diff --git a/libavcodec/h264_parse.c b/libavcodec/h264_parse.c
index d694558ecc..cde46fa9eb 100644
--- a/libavcodec/h264_parse.c
+++ b/libavcodec/h264_parse.c
@@ -18,7 +18,7 @@
#include "bytestream.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "h264.h"
#include "h264dec.h"
#include "h264_parse.h"
diff --git a/libavcodec/h264_parser.c b/libavcodec/h264_parser.c
index b4da123e94..6de37c0b55 100644
--- a/libavcodec/h264_parser.c
+++ b/libavcodec/h264_parser.c
@@ -36,7 +36,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "h264.h"
#include "h264_sei.h"
#include "h264_ps.h"
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c
index 7ee3876c8b..b3a0e8a7ed 100644
--- a/libavcodec/h264_ps.c
+++ b/libavcodec/h264_ps.c
@@ -28,12 +28,13 @@
#include <inttypes.h>
#include "libavutil/imgutils.h"
+
+#include "golomb_legacy.h"
#include "internal.h"
#include "mathops.h"
#include "avcodec.h"
#include "h264data.h"
#include "h264_ps.h"
-#include "golomb.h"
#define MAX_LOG2_MAX_FRAME_NUM (12 + 4)
#define MIN_LOG2_MAX_FRAME_NUM 4
diff --git a/libavcodec/h264_refs.c b/libavcodec/h264_refs.c
index 3c55998424..b4dc49cc41 100644
--- a/libavcodec/h264_refs.c
+++ b/libavcodec/h264_refs.c
@@ -27,11 +27,11 @@
#include <inttypes.h>
+#include "golomb_legacy.h"
#include "internal.h"
#include "avcodec.h"
#include "h264.h"
#include "h264dec.h"
-#include "golomb.h"
#include "mpegutils.h"
#include <assert.h>
diff --git a/libavcodec/h264_sei.c b/libavcodec/h264_sei.c
index 7eef3ee962..4bf001ae07 100644
--- a/libavcodec/h264_sei.c
+++ b/libavcodec/h264_sei.c
@@ -27,7 +27,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "h264_ps.h"
#include "h264_sei.h"
#include "internal.h"
diff --git a/libavcodec/h264_slice.c b/libavcodec/h264_slice.c
index 3749d1f2ca..f1f5fc05f9 100644
--- a/libavcodec/h264_slice.c
+++ b/libavcodec/h264_slice.c
@@ -34,6 +34,7 @@
#include "cabac.h"
#include "cabac_functions.h"
#include "error_resilience.h"
+#include "golomb_legacy.h"
#include "avcodec.h"
#include "h264.h"
#include "h264dec.h"
@@ -41,7 +42,6 @@
#include "h264chroma.h"
#include "h264_mvpred.h"
#include "h264_ps.h"
-#include "golomb.h"
#include "mathops.h"
#include "mpegutils.h"
#include "rectangle.h"
diff --git a/libavcodec/h264dec.c b/libavcodec/h264dec.c
index 834c60c38c..5137039188 100644
--- a/libavcodec/h264dec.c
+++ b/libavcodec/h264dec.c
@@ -36,6 +36,7 @@
#include "cabac_functions.h"
#include "error_resilience.h"
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "h264.h"
#include "h264dec.h"
#include "h2645_parse.h"
@@ -43,7 +44,6 @@
#include "h264chroma.h"
#include "h264_mvpred.h"
#include "h264_ps.h"
-#include "golomb.h"
#include "mathops.h"
#include "me_cmp.h"
#include "mpegutils.h"
diff --git a/libavcodec/hevc_parser.c b/libavcodec/hevc_parser.c
index 74a0257073..5129e3a9c1 100644
--- a/libavcodec/hevc_parser.c
+++ b/libavcodec/hevc_parser.c
@@ -22,7 +22,7 @@
#include "libavutil/common.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "hevc.h"
#include "hevcdec.h"
#include "h2645_parse.h"
diff --git a/libavcodec/hevc_ps.c b/libavcodec/hevc_ps.c
index 4a5a47e20e..3c98e4ce44 100644
--- a/libavcodec/hevc_ps.c
+++ b/libavcodec/hevc_ps.c
@@ -25,7 +25,7 @@
#include "libavutil/imgutils.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "hevc_data.h"
#include "hevc_ps.h"
diff --git a/libavcodec/hevc_ps_enc.c b/libavcodec/hevc_ps_enc.c
index 4864e6ebfc..1fb93b3020 100644
--- a/libavcodec/hevc_ps_enc.c
+++ b/libavcodec/hevc_ps_enc.c
@@ -18,7 +18,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "hevc_ps.h"
#include "put_bits.h"
diff --git a/libavcodec/hevc_sei.c b/libavcodec/hevc_sei.c
index 8c913f93a7..1f8554ad5f 100644
--- a/libavcodec/hevc_sei.c
+++ b/libavcodec/hevc_sei.c
@@ -22,7 +22,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "hevcdec.h"
enum HEVC_SEI_TYPE {
diff --git a/libavcodec/hevcdec.c b/libavcodec/hevcdec.c
index dcb2453a20..e24ce1e3c0 100644
--- a/libavcodec/hevcdec.c
+++ b/libavcodec/hevcdec.c
@@ -35,7 +35,7 @@
#include "bswapdsp.h"
#include "bytestream.h"
#include "cabac_functions.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "hevc.h"
#include "hevc_data.h"
#include "hevcdec.h"
diff --git a/libavcodec/jpeglsdec.c b/libavcodec/jpeglsdec.c
index 9f8ccecec6..8d1e763113 100644
--- a/libavcodec/jpeglsdec.c
+++ b/libavcodec/jpeglsdec.c
@@ -27,7 +27,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "mathops.h"
#include "mjpeg.h"
diff --git a/libavcodec/jpeglsenc.c b/libavcodec/jpeglsenc.c
index cb9b71e4cd..fb3c69f2f9 100644
--- a/libavcodec/jpeglsenc.c
+++ b/libavcodec/jpeglsenc.c
@@ -27,7 +27,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "mathops.h"
#include "mjpeg.h"
diff --git a/libavcodec/loco.c b/libavcodec/loco.c
index f25ef61f37..8624ea86ad 100644
--- a/libavcodec/loco.c
+++ b/libavcodec/loco.c
@@ -26,7 +26,7 @@
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "mathops.h"
diff --git a/libavcodec/ralf.c b/libavcodec/ralf.c
index 9812837570..6bc0f3fa0d 100644
--- a/libavcodec/ralf.c
+++ b/libavcodec/ralf.c
@@ -30,7 +30,7 @@
#include "libavutil/channel_layout.h"
#include "avcodec.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#include "unary_legacy.h"
#include "ralfdata.h"
diff --git a/libavcodec/rv30.c b/libavcodec/rv30.c
index 7218fa36dc..77e875bac9 100644
--- a/libavcodec/rv30.c
+++ b/libavcodec/rv30.c
@@ -25,9 +25,9 @@
*/
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "mpegutils.h"
#include "mpegvideo.h"
-#include "golomb.h"
#include "rv34.h"
#include "rv30data.h"
diff --git a/libavcodec/rv34.c b/libavcodec/rv34.c
index 4220195a52..9fb0760ccb 100644
--- a/libavcodec/rv34.c
+++ b/libavcodec/rv34.c
@@ -28,9 +28,9 @@
#include "avcodec.h"
#include "error_resilience.h"
+#include "golomb_legacy.h"
#include "mpegutils.h"
#include "mpegvideo.h"
-#include "golomb.h"
#include "internal.h"
#include "mathops.h"
#include "mpeg_er.h"
diff --git a/libavcodec/rv40.c b/libavcodec/rv40.c
index 0da13124d6..d46a44a5dd 100644
--- a/libavcodec/rv40.c
+++ b/libavcodec/rv40.c
@@ -27,9 +27,9 @@
#include "libavutil/imgutils.h"
#include "avcodec.h"
+#include "golomb_legacy.h"
#include "mpegutils.h"
#include "mpegvideo.h"
-#include "golomb.h"
#include "rv34.h"
#include "rv40vlc2.h"
diff --git a/libavcodec/shorten.c b/libavcodec/shorten.c
index 00d1661779..82fa2ab943 100644
--- a/libavcodec/shorten.c
+++ b/libavcodec/shorten.c
@@ -29,7 +29,7 @@
#include "avcodec.h"
#include "bytestream.h"
#include "get_bits.h"
-#include "golomb.h"
+#include "golomb_legacy.h"
#include "internal.h"
#define MAX_CHANNELS 8
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c
index 51657372ae..8bbd331de3 100644
--- a/libavcodec/svq3.c
+++ b/libavcodec/svq3.c
@@ -43,12 +43,13 @@
#include <inttypes.h>
#include "libavutil/attributes.h"
+
+#include "golomb_legacy.h"
#include "internal.h"
#include "avcodec.h"
#include "mpegutils.h"
#include "h264dec.h"
#include "h264data.h"
-#include "golomb.h"
#include "hpeldsp.h"
#include "mathops.h"
#include "rectangle.h"
diff --git a/libavcodec/tests/golomb.c b/libavcodec/tests/golomb.c
index 7587402e24..d8fff71ca3 100644
--- a/libavcodec/tests/golomb.c
+++ b/libavcodec/tests/golomb.c
@@ -21,7 +21,7 @@
#include "libavutil/mem.h"
-#include "libavcodec/get_bits.h"
+#include "libavcodec/bitstream.h"
#include "libavcodec/put_bits.h"
#include "libavcodec/golomb.h"
@@ -33,7 +33,7 @@ int main(void)
int i, ret = 0;
uint8_t *temp;
PutBitContext pb;
- GetBitContext gb;
+ BitstreamContext bc;
temp = av_malloc(SIZE);
if (!temp)
@@ -44,11 +44,11 @@ int main(void)
set_ue_golomb(&pb, i);
flush_put_bits(&pb);
- init_get_bits(&gb, temp, 8 * SIZE);
+ bitstream_init8(&bc, temp, SIZE);
for (i = 0; i < COUNT; i++) {
- int j, s = show_bits(&gb, 25);
+ int j, s = bitstream_peek(&bc, 25);
- j = get_ue_golomb(&gb);
+ j = get_ue_golomb(&bc);
if (j != i) {
fprintf(stderr, "get_ue_golomb: expected %d, got %d. bits: %7x\n",
i, j, s);
@@ -62,11 +62,11 @@ int main(void)
set_ue_golomb(&pb, EXTEND(i));
flush_put_bits(&pb);
- init_get_bits(&gb, temp, 8 * SIZE);
+ bitstream_init8(&bc, temp, SIZE);
for (i = 0; i < COUNT; i++) {
- int j, s = show_bits_long(&gb, 32);
+ int j, s = bitstream_peek(&bc, 32);
- j = get_ue_golomb_long(&gb);
+ j = get_ue_golomb_long(&bc);
if (j != EXTEND(i)) {
fprintf(stderr, "get_ue_golomb_long: expected %d, got %d. "
"bits: %8x\n", EXTEND(i), j, s);
@@ -79,11 +79,11 @@ int main(void)
set_se_golomb(&pb, i - COUNT / 2);
flush_put_bits(&pb);
- init_get_bits(&gb, temp, 8 * SIZE);
+ bitstream_init8(&bc, temp, SIZE);
for (i = 0; i < COUNT; i++) {
- int j, s = show_bits(&gb, 25);
+ int j, s = bitstream_peek(&bc, 25);
- j = get_se_golomb(&gb);
+ j = get_se_golomb(&bc);
if (j != i - COUNT / 2) {
fprintf(stderr, "get_se_golomb: expected %d, got %d. bits: %7x\n",
i - COUNT / 2, j, s);
diff --git a/libavformat/hevc.c b/libavformat/hevc.c
index 62eefc6d29..057f6517ff 100644
--- a/libavformat/hevc.c
+++ b/libavformat/hevc.c
@@ -20,7 +20,7 @@
#include "libavcodec/avcodec.h"
#include "libavcodec/get_bits.h"
-#include "libavcodec/golomb.h"
+#include "libavcodec/golomb_legacy.h"
#include "libavcodec/hevc.h"
#include "libavutil/intreadwrite.h"
#include "avc.h"
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