[FFmpeg-cvslog] HWAccel: adds Video Decoder Acceleration (VDA) module for Mac OS X.
Sebastien Zwickert
git at videolan.org
Wed Nov 2 15:50:22 CET 2011
ffmpeg | branch: master | Sebastien Zwickert <dilaroga at free.fr> | Wed Nov 2 00:55:09 2011 +0100| [d66ee6ac4898b8af2f9c39bd0893e89e823286ac] | committer: Michael Niedermayer
HWAccel: adds Video Decoder Acceleration (VDA) module for Mac OS X.
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=d66ee6ac4898b8af2f9c39bd0893e89e823286ac
---
Changelog | 1 +
MAINTAINERS | 1 +
configure | 10 ++
libavcodec/Makefile | 5 +-
libavcodec/allcodecs.c | 1 +
libavcodec/h264.c | 1 +
libavcodec/mpegvideo.c | 1 +
libavcodec/vda.c | 271 +++++++++++++++++++++++++++++++++++++++++++++
libavcodec/vda.h | 140 +++++++++++++++++++++++
libavcodec/vda_h264.c | 107 ++++++++++++++++++
libavcodec/vda_internal.h | 50 ++++++++
libavcodec/version.h | 2 +-
libavutil/avutil.h | 2 +-
libavutil/pixdesc.c | 6 +
libavutil/pixfmt.h | 2 +
15 files changed, 597 insertions(+), 3 deletions(-)
diff --git a/Changelog b/Changelog
index c6d88b6..0bbeae7 100644
--- a/Changelog
+++ b/Changelog
@@ -70,6 +70,7 @@ easier to use. The changes are:
- 4:2:2 H.264 decoding support
- Pulseaudio input device
- Prores encoder
+- Video Decoder Acceleration (VDA) HWAccel module.
version 0.8:
diff --git a/MAINTAINERS b/MAINTAINERS
index e9803f3..829dfe1 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -237,6 +237,7 @@ Hardware acceleration:
dxva2* Laurent Aimar
libstagefright.cpp Mohamed Naufal
vaapi* Gwenole Beauchesne
+ vda* Sebastien Zwickert
vdpau* Carl Eugen Hoyos
diff --git a/configure b/configure
index e688f58..279e416 100755
--- a/configure
+++ b/configure
@@ -111,6 +111,7 @@ Configuration options:
--enable-vaapi enable VAAPI code [autodetect]
--enable-vdpau enable VDPAU code [autodetect]
--disable-dxva2 disable DXVA2 code
+ --disable-vda disable VDA code
--enable-runtime-cpudetect detect cpu capabilities at runtime (bigger binary)
--enable-hardcoded-tables use hardcoded tables instead of runtime generation
--enable-memalign-hack emulate memalign, interferes with memory debuggers
@@ -1052,6 +1053,7 @@ CONFIG_LIST="
swscale_alpha
thumb
vaapi
+ vda
vdpau
version3
x11grab
@@ -1377,6 +1379,8 @@ h264_crystalhd_decoder_select="crystalhd h264_mp4toannexb_bsf h264_parser"
h264_dxva2_hwaccel_deps="dxva2api_h"
h264_dxva2_hwaccel_select="dxva2 h264_decoder"
h264_vaapi_hwaccel_select="vaapi"
+h264_vda_hwaccel_deps="VideoDecodeAcceleration_VDADecoder_h"
+h264_vda_hwaccel_select="vda"
h264_vdpau_decoder_select="vdpau h264_decoder"
imc_decoder_select="fft mdct sinewin"
jpegls_decoder_select="golomb"
@@ -2955,6 +2959,7 @@ check_func_headers windows.h MapViewOfFile
check_func_headers windows.h VirtualAlloc
check_header dlfcn.h
+check_header VideoDecodeAcceleration/VDADecoder.h
check_header dxva2api.h -D_WIN32_WINNT=0x0600
check_header libcrystalhd/libcrystalhd_if.h
check_header malloc.h
@@ -2970,6 +2975,11 @@ check_header X11/extensions/XvMClib.h
disabled zlib || check_lib zlib.h zlibVersion -lz || disable zlib
disabled bzlib || check_lib2 bzlib.h BZ2_bzlibVersion -lbz2 || disable bzlib
+# adds ldflags for VDA module
+if enabled vda; then
+ add_ldflags -framework CoreFoundation -framework VideoDecodeAcceleration -framework QuartzCore
+fi
+
# check for some common methods of building with pthread support
# do this before the optional library checks as some of them require pthreads
if ! disabled pthreads && ! enabled w32threads; then
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index b2c0c99..0178f8f 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -3,7 +3,7 @@ include $(SUBDIR)../config.mak
NAME = avcodec
FFLIBS = avutil
-HEADERS = avcodec.h avfft.h dxva2.h opt.h vaapi.h vdpau.h version.h xvmc.h
+HEADERS = avcodec.h avfft.h dxva2.h opt.h vaapi.h vda.h vdpau.h version.h xvmc.h
OBJS = allcodecs.o \
audioconvert.o \
@@ -49,6 +49,7 @@ RDFT-OBJS-$(CONFIG_HARDCODED_TABLES) += sin_tables.o
OBJS-$(CONFIG_RDFT) += rdft.o $(RDFT-OBJS-yes)
OBJS-$(CONFIG_SINEWIN) += sinewin.o
OBJS-$(CONFIG_VAAPI) += vaapi.o
+OBJS-$(CONFIG_VDA) += vda.o
OBJS-$(CONFIG_VDPAU) += vdpau.o
# decoders/encoders/hardware accelerators
@@ -192,6 +193,7 @@ OBJS-$(CONFIG_H264_DECODER) += h264.o \
mpegvideo.o error_resilience.o
OBJS-$(CONFIG_H264_DXVA2_HWACCEL) += dxva2_h264.o
OBJS-$(CONFIG_H264_VAAPI_HWACCEL) += vaapi_h264.o
+OBJS-$(CONFIG_H264_VDA_HWACCEL) += vda_h264.o
OBJS-$(CONFIG_HUFFYUV_DECODER) += huffyuv.o
OBJS-$(CONFIG_HUFFYUV_ENCODER) += huffyuv.o
OBJS-$(CONFIG_IDCIN_DECODER) += idcinvideo.o
@@ -703,6 +705,7 @@ SKIPHEADERS-$(CONFIG_DXVA2) += dxva2.h dxva2_internal.h
SKIPHEADERS-$(CONFIG_LIBDIRAC) += libdirac.h
SKIPHEADERS-$(CONFIG_LIBSCHROEDINGER) += libschroedinger.h
SKIPHEADERS-$(CONFIG_VAAPI) += vaapi_internal.h
+SKIPHEADERS-$(CONFIG_VDA) += vda_internal.h
SKIPHEADERS-$(CONFIG_VDPAU) += vdpau.h
SKIPHEADERS-$(CONFIG_XVMC) += xvmc.h
SKIPHEADERS-$(HAVE_W32THREADS) += w32pthreads.h
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index 1119dd1..7ba2ab3 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -57,6 +57,7 @@ void avcodec_register_all(void)
REGISTER_HWACCEL (H263_VAAPI, h263_vaapi);
REGISTER_HWACCEL (H264_DXVA2, h264_dxva2);
REGISTER_HWACCEL (H264_VAAPI, h264_vaapi);
+ REGISTER_HWACCEL (H264_VDA, h264_vda);
REGISTER_HWACCEL (MPEG1_VDPAU, mpeg1_vdpau);
REGISTER_HWACCEL (MPEG2_DXVA2, mpeg2_dxva2);
REGISTER_HWACCEL (MPEG2_VAAPI, mpeg2_vaapi);
diff --git a/libavcodec/h264.c b/libavcodec/h264.c
index 3302f71..3f6bc72 100644
--- a/libavcodec/h264.c
+++ b/libavcodec/h264.c
@@ -56,6 +56,7 @@ static const uint8_t div6[QP_MAX_NUM+1]={
static const enum PixelFormat hwaccel_pixfmt_list_h264_jpeg_420[] = {
PIX_FMT_DXVA2_VLD,
PIX_FMT_VAAPI_VLD,
+ PIX_FMT_VDA_VLD,
PIX_FMT_YUVJ420P,
PIX_FMT_NONE
};
diff --git a/libavcodec/mpegvideo.c b/libavcodec/mpegvideo.c
index fffa36a..29500ea 100644
--- a/libavcodec/mpegvideo.c
+++ b/libavcodec/mpegvideo.c
@@ -118,6 +118,7 @@ const enum PixelFormat ff_pixfmt_list_420[] = {
const enum PixelFormat ff_hwaccel_pixfmt_list_420[] = {
PIX_FMT_DXVA2_VLD,
PIX_FMT_VAAPI_VLD,
+ PIX_FMT_VDA_VLD,
PIX_FMT_YUV420P,
PIX_FMT_NONE
};
diff --git a/libavcodec/vda.c b/libavcodec/vda.c
new file mode 100644
index 0000000..5fe8a48
--- /dev/null
+++ b/libavcodec/vda.c
@@ -0,0 +1,271 @@
+/*
+ * VDA HW acceleration.
+ *
+ * copyright (c) 2011 Sebastien Zwickert
+ *
+ * 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
+ */
+
+#include "vda_internal.h"
+
+/**
+ * \addtogroup VDA_Decoding
+ *
+ * @{
+ */
+
+/* Mutex manager callback. */
+static int vda_lock_operation(void **mtx, enum AVLockOp op)
+{
+ switch(op)
+ {
+ case AV_LOCK_CREATE:
+ *mtx = av_malloc(sizeof(pthread_mutex_t));
+ if(!*mtx)
+ return 1;
+ return !!pthread_mutex_init(*mtx, NULL);
+ case AV_LOCK_OBTAIN:
+ return !!pthread_mutex_lock(*mtx);
+ case AV_LOCK_RELEASE:
+ return !!pthread_mutex_unlock(*mtx);
+ case AV_LOCK_DESTROY:
+ pthread_mutex_destroy(*mtx);
+ av_freep(mtx);
+ return 0;
+ }
+ return 1;
+}
+
+/* Helper to create a dictionary according to the given pts. */
+static CFDictionaryRef vda_dictionary_with_pts(int64_t i_pts)
+{
+ CFStringRef key = CFSTR("FF_VDA_DECODER_PTS_KEY");
+ CFNumberRef value = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt64Type, &i_pts);
+ CFDictionaryRef user_info = CFDictionaryCreate( kCFAllocatorDefault,
+ (const void **)&key,
+ (const void **)&value,
+ 1,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks);
+ CFRelease(value);
+ return user_info;
+}
+
+/* Helper to retrieve the pts from the given dictionary. */
+static int64_t vda_pts_from_dictionary(CFDictionaryRef user_info)
+{
+ CFNumberRef pts;
+ int64_t outValue = 0;
+
+ if (NULL == user_info)
+ return 0;
+
+ pts = CFDictionaryGetValue(user_info, CFSTR("FF_VDA_DECODER_PTS_KEY"));
+
+ if (pts)
+ CFNumberGetValue(pts, kCFNumberSInt64Type, &outValue);
+
+ return outValue;
+}
+
+/* Removes and releases all frames from the queue. */
+static void vda_clear_queue(struct vda_context *vda_ctx)
+{
+ vda_frame *top_frame;
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_OBTAIN);
+
+ while (vda_ctx->queue != NULL)
+ {
+ top_frame = vda_ctx->queue;
+ vda_ctx->queue = top_frame->next_frame;
+ ff_vda_release_vda_frame(top_frame);
+ }
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_RELEASE);
+}
+
+
+/* Decoder callback that adds the vda frame to the queue in display order. */
+static void vda_decoder_callback (void *vda_hw_ctx,
+ CFDictionaryRef user_info,
+ OSStatus status,
+ uint32_t infoFlags,
+ CVImageBufferRef image_buffer)
+{
+ struct vda_context *vda_ctx = (struct vda_context*)vda_hw_ctx;
+ vda_frame *new_frame;
+ vda_frame *queue_walker;
+
+ if (NULL == image_buffer)
+ return;
+
+ if (kCVPixelFormatType_422YpCbCr8 != CVPixelBufferGetPixelFormatType(image_buffer))
+ return;
+
+ new_frame = (vda_frame *)av_mallocz(sizeof(vda_frame));
+ new_frame->next_frame = NULL;
+ new_frame->cv_buffer = CVPixelBufferRetain(image_buffer);
+ new_frame->pts = vda_pts_from_dictionary(user_info);
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_OBTAIN);
+
+ queue_walker = vda_ctx->queue;
+
+ if (!queue_walker || (new_frame->pts < queue_walker->pts))
+ {
+ /* we have an empty queue, or this frame earlier than the current queue head */
+ new_frame->next_frame = queue_walker;
+ vda_ctx->queue = new_frame;
+ }
+ else
+ {
+ /* walk the queue and insert this frame where it belongs in display order */
+ vda_frame *next_frame;
+
+ while (1)
+ {
+ next_frame = queue_walker->next_frame;
+
+ if (!next_frame || (new_frame->pts < next_frame->pts))
+ {
+ new_frame->next_frame = next_frame;
+ queue_walker->next_frame = new_frame;
+ break;
+ }
+ queue_walker = next_frame;
+ }
+ }
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_RELEASE);
+}
+
+int ff_vda_create_decoder(struct vda_context *vda_ctx,
+ uint8_t *extradata,
+ int extradata_size)
+{
+ OSStatus status = kVDADecoderNoErr;
+ CFNumberRef height;
+ CFNumberRef width;
+ CFNumberRef format;
+ CFDataRef avc_data;
+ CFMutableDictionaryRef config_info;
+
+ if (av_lockmgr_register(vda_lock_operation))
+ return -1;
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_CREATE);
+
+ config_info = (CFDictionaryCreateMutable(kCFAllocatorDefault,
+ 4,
+ &kCFTypeDictionaryKeyCallBacks,
+ &kCFTypeDictionaryValueCallBacks));
+
+ height = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->height);
+ width = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->width);
+ format = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &vda_ctx->format);
+ avc_data = CFDataCreate(kCFAllocatorDefault, extradata, extradata_size);
+
+ CFDictionarySetValue(config_info, kVDADecoderConfiguration_Height, height);
+ CFDictionarySetValue(config_info, kVDADecoderConfiguration_Width, width);
+ CFDictionarySetValue(config_info, kVDADecoderConfiguration_SourceFormat, format);
+ CFDictionarySetValue(config_info, kVDADecoderConfiguration_avcCData, avc_data);
+
+ status = VDADecoderCreate( config_info,
+ NULL,
+ (VDADecoderOutputCallback *)vda_decoder_callback,
+ (void *)vda_ctx,
+ &vda_ctx->decoder );
+
+ CFRelease(height);
+ CFRelease(width);
+ CFRelease(format);
+ CFRelease(avc_data);
+ CFRelease(config_info);
+
+ if (kVDADecoderNoErr != status)
+ return status;
+
+ return 0;
+}
+
+int ff_vda_destroy_decoder(struct vda_context *vda_ctx)
+{
+ OSStatus status = kVDADecoderNoErr;
+
+ if (vda_ctx->decoder)
+ status = VDADecoderDestroy(vda_ctx->decoder);
+
+ vda_clear_queue(vda_ctx);
+
+ if (vda_ctx->queue_mutex != NULL)
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_DESTROY);
+
+ if (kVDADecoderNoErr != status)
+ return status;
+
+ return 0;
+}
+
+vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx)
+{
+ vda_frame *top_frame;
+
+ if (!vda_ctx->queue)
+ return NULL;
+
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_OBTAIN);
+ top_frame = vda_ctx->queue;
+ vda_ctx->queue = top_frame->next_frame;
+ vda_lock_operation(&vda_ctx->queue_mutex, AV_LOCK_RELEASE);
+
+ return top_frame;
+}
+
+void ff_vda_release_vda_frame(vda_frame *frame)
+{
+ if (frame != NULL)
+ {
+ CVPixelBufferRelease(frame->cv_buffer);
+ av_freep(&frame);
+ }
+}
+
+int ff_vda_decoder_decode(struct vda_context *vda_ctx,
+ uint8_t *bitstream,
+ int bitstream_size,
+ int64_t frame_pts)
+{
+ OSStatus status = kVDADecoderNoErr;
+ CFDictionaryRef user_info;
+ CFDataRef coded_frame;
+
+ coded_frame = CFDataCreate(kCFAllocatorDefault, bitstream, bitstream_size);
+ user_info = vda_dictionary_with_pts(frame_pts);
+
+ status = VDADecoderDecode(vda_ctx->decoder, 0, coded_frame, user_info);
+
+ CFRelease(user_info);
+ CFRelease(coded_frame);
+
+ if (kVDADecoderNoErr != status)
+ return status;
+
+ return 0;
+}
+
+/* @} */
diff --git a/libavcodec/vda.h b/libavcodec/vda.h
new file mode 100644
index 0000000..3f70cf2
--- /dev/null
+++ b/libavcodec/vda.h
@@ -0,0 +1,140 @@
+/*
+ * VDA HW acceleration
+ *
+ * copyright (c) 2011 Sebastien Zwickert
+ *
+ * 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_VDA_H
+#define AVCODEC_VDA_H
+
+#include <stdint.h>
+
+// emmintrin.h is unable to compile with -std=c99 -Werror=missing-prototypes
+// http://openradar.appspot.com/8026390
+#undef __GNUC_STDC_INLINE__
+
+#define Picture QuickdrawPicture
+
+#include <pthread.h>
+#include "avcodec.h"
+#include <VideoDecodeAcceleration/VDADecoder.h>
+
+/**
+ * This structure is used to store a decoded frame information and data.
+ */
+typedef struct
+{
+ /**
+ * The PTS of the frame.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ int64_t pts;
+
+ /**
+ * The CoreVideo buffer that contains the decoded data.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ CVPixelBufferRef cv_buffer;
+
+ /**
+ * A pointer to the next frame.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ struct vda_frame *next_frame;
+
+} vda_frame;
+
+/**
+ * This structure is used to provide the necessary configurations and data
+ * to the VDA FFmpeg HWAccel implementation.
+ *
+ * The application must make it available as AVCodecContext.hwaccel_context.
+ */
+struct vda_context {
+
+ /**
+ * VDA decoder object.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ VDADecoder decoder;
+
+ /**
+ * VDA frames queue ordered by presentation timestamp.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ vda_frame *queue;
+
+ /**
+ * Mutex for locking queue operations.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by libavcodec.
+ */
+ void *queue_mutex;
+
+ /**
+ * The frame width.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int width;
+
+ /**
+ * The frame height.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int height;
+
+ /**
+ * The frame format.
+ *
+ * - encoding: unused
+ * - decoding: Set/Unset by user.
+ */
+ int format;
+};
+
+/** Creates the video decoder. */
+int ff_vda_create_decoder(struct vda_context *vda_ctx,
+ uint8_t *extradata,
+ int extradata_size);
+
+/** Destroys the video decoder. */
+int ff_vda_destroy_decoder(struct vda_context *vda_ctx);
+
+/** Returns the top frame of the queue. */
+vda_frame *ff_vda_queue_pop(struct vda_context *vda_ctx);
+
+/** Releases the given frame. */
+void ff_vda_release_vda_frame(vda_frame *frame);
+
+#endif /* AVCODEC_VDA_H */
diff --git a/libavcodec/vda_h264.c b/libavcodec/vda_h264.c
new file mode 100644
index 0000000..f4791a1
--- /dev/null
+++ b/libavcodec/vda_h264.c
@@ -0,0 +1,107 @@
+/*
+ * VDA H264 HW acceleration.
+ *
+ * copyright (c) 2011 Sebastien Zwickert
+ *
+ * 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
+ */
+
+#include "vda_internal.h"
+
+/* This structure is used to store the bitstream of the current frame. */
+struct vda_picture_context {
+ uint8_t *bitstream;
+ int bitstream_size;
+};
+
+static int start_frame(AVCodecContext *avctx,
+ av_unused const uint8_t *buffer,
+ av_unused uint32_t size)
+{
+ const H264Context *h = avctx->priv_data;
+ struct vda_context *vda_ctx = avctx->hwaccel_context;
+ struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private;
+
+ if (!vda_ctx->decoder)
+ return -1;
+
+ pic_ctx->bitstream = NULL;
+ pic_ctx->bitstream_size = 0;
+
+ return 0;
+}
+
+static int decode_slice(AVCodecContext *avctx,
+ const uint8_t *buffer,
+ uint32_t size)
+{
+ H264Context *h = avctx->priv_data;
+ struct vda_context *vda_ctx = avctx->hwaccel_context;
+ struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private;
+ void *tmp;
+
+ if (!vda_ctx->decoder)
+ return -1;
+
+ tmp = av_realloc(pic_ctx->bitstream, pic_ctx->bitstream_size+size+4);
+ if (!tmp)
+ return AVERROR(ENOMEM);
+
+ pic_ctx->bitstream = tmp;
+
+ AV_WB32(pic_ctx->bitstream+pic_ctx->bitstream_size, size);
+ memcpy(pic_ctx->bitstream+pic_ctx->bitstream_size+4, buffer, size);
+
+ pic_ctx->bitstream_size += size + 4;
+
+ return 0;
+}
+
+static int end_frame(AVCodecContext *avctx)
+{
+ H264Context *h = avctx->priv_data;
+ struct vda_context *vda_ctx = avctx->hwaccel_context;
+ struct vda_picture_context *pic_ctx = h->s.current_picture_ptr->f.hwaccel_picture_private;
+ AVFrame *frame = (AVFrame*)h->s.current_picture_ptr;
+ int status;
+
+ if (!vda_ctx->decoder || !pic_ctx->bitstream)
+ return -1;
+
+ status = ff_vda_decoder_decode(vda_ctx, pic_ctx->bitstream,
+ pic_ctx->bitstream_size,
+ frame->reordered_opaque);
+
+ if (status)
+ av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%d)\n", status);
+
+ av_freep(&pic_ctx->bitstream);
+
+ return status;
+}
+
+AVHWAccel ff_h264_vda_hwaccel = {
+ .name = "h264_vda",
+ .type = AVMEDIA_TYPE_VIDEO,
+ .id = CODEC_ID_H264,
+ .pix_fmt = PIX_FMT_VDA_VLD,
+ .capabilities = 0,
+ .start_frame = start_frame,
+ .decode_slice = decode_slice,
+ .end_frame = end_frame,
+ .priv_data_size = sizeof(struct vda_picture_context),
+};
diff --git a/libavcodec/vda_internal.h b/libavcodec/vda_internal.h
new file mode 100644
index 0000000..c6dcaa8
--- /dev/null
+++ b/libavcodec/vda_internal.h
@@ -0,0 +1,50 @@
+/*
+ * VDA HW acceleration
+ *
+ * copyright (c) 2011 Sebastien Zwickert
+ *
+ * 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_VDA_INTERNAL_H
+#define AVCODEC_VDA_INTERNAL_H
+
+#include "h264.h"
+#include "h264data.h"
+
+#include "vda.h"
+
+#include <CoreFoundation/CFDictionary.h>
+#include <CoreFoundation/CFNumber.h>
+#include <CoreFoundation/CFData.h>
+#include <CoreFoundation/CFString.h>
+
+/**
+ * \addtogroup VDA_Decoding
+ *
+ * @{
+ */
+
+/** Send a frame data to the hardware decoder. */
+int ff_vda_decoder_decode(struct vda_context *vda_ctx,
+ uint8_t *bitstream,
+ int bitstream_size,
+ int64_t frame_pts);
+
+/* @} */
+
+#endif /* AVCODEC_VDA_INTERNAL_H */
diff --git a/libavcodec/version.h b/libavcodec/version.h
index db9b8dd..ad64b60 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -21,7 +21,7 @@
#define AVCODEC_VERSION_H
#define LIBAVCODEC_VERSION_MAJOR 53
-#define LIBAVCODEC_VERSION_MINOR 26
+#define LIBAVCODEC_VERSION_MINOR 27
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
diff --git a/libavutil/avutil.h b/libavutil/avutil.h
index d7eca65..94e4271 100644
--- a/libavutil/avutil.h
+++ b/libavutil/avutil.h
@@ -40,7 +40,7 @@
#define AV_VERSION(a, b, c) AV_VERSION_DOT(a, b, c)
#define LIBAVUTIL_VERSION_MAJOR 51
-#define LIBAVUTIL_VERSION_MINOR 22
+#define LIBAVUTIL_VERSION_MINOR 23
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
diff --git a/libavutil/pixdesc.c b/libavutil/pixdesc.c
index 5d0a9df..6648a7e 100644
--- a/libavutil/pixdesc.c
+++ b/libavutil/pixdesc.c
@@ -1003,6 +1003,12 @@ const AVPixFmtDescriptor av_pix_fmt_descriptors[PIX_FMT_NB] = {
.log2_chroma_h = 1,
.flags = PIX_FMT_HWACCEL,
},
+ [PIX_FMT_VDA_VLD] = {
+ .name = "vda_vld",
+ .log2_chroma_w = 1,
+ .log2_chroma_h = 1,
+ .flags = PIX_FMT_HWACCEL,
+ },
[PIX_FMT_GRAY8A] = {
.name = "gray8a",
.nb_components= 2,
diff --git a/libavutil/pixfmt.h b/libavutil/pixfmt.h
index 25c9ef9..6719e83 100644
--- a/libavutil/pixfmt.h
+++ b/libavutil/pixfmt.h
@@ -158,6 +158,8 @@ enum PixelFormat {
PIX_FMT_BGRA64LE, ///< packed RGBA 16:16:16:16, 64bpp, 16B, 16G, 16R, 16A, the 2-byte value for each R/G/B/A component is stored as little-endian
PIX_FMT_GBR24P, ///< planar GBR, 24bpp, 8G, 8B, 8R.
+ PIX_FMT_VDA_VLD, ///< HW decoding through VDA.
+
PIX_FMT_NB, ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
};
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