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FFmpeg/libavcodec/videotoolbox.c
Andreas Rheinhardt fe6037fd04 avcodec/mpegpicture: Split MPVPicture into WorkPicture and ordinary Pic 
There are two types of MPVPictures: Three (cur_pic, last_pic, next_pic)
that are directly part of MpegEncContext and an array of MPVPictures
that are separately allocated and are mostly accessed via pointers
(cur|last|next)_pic_ptr; they are also used to store AVFrames in the
encoder (necessary due to B-frames). As the name implies, each of the
former is directly associated with one of the _ptr pointers:
They actually share the same underlying buffers, but the ones
that are part of the context can have their data pointers offset
and their linesize doubled for field pictures.

Up until now, each of these had their own references; in particular,
there was an underlying av_frame_ref() to sync cur_pic and cur_pic_ptr
etc. This is wasteful.

This commit changes this relationship: cur_pic, last_pic and next_pic
now become MPVWorkPictures; this structure does not have an AVFrame
at all any more, but only the cached values of data and linesize.
It also contains a pointer to the corresponding MPVPicture, establishing
a more natural relationsship between the two.
This already means that creating the context-pictures from the pointers
can no longer fail.

What has not been changed is the fact that the MPVPicture* pointers
are not ownership pointers and that the MPVPictures are part of an
array of MPVPictures that is owned by a single AVCodecContext.
Doing so will be done in a latter commit.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
2024-06-12 11:38:13 +02:00

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/*
* Videotoolbox hardware acceleration
*
* copyright (c) 2012 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 "config.h"
#include "config_components.h"
#include "videotoolbox.h"
#include "libavutil/hwcontext_videotoolbox.h"
#include "libavutil/mem.h"
#include "vt_internal.h"
#include "libavutil/avutil.h"
#include "libavutil/hwcontext.h"
#include "libavutil/pixdesc.h"
#include "bytestream.h"
#include "decode.h"
#include "internal.h"
#include "h264dec.h"
#include "hevc/hevcdec.h"
#include "hwaccel_internal.h"
#include "mpegvideo.h"
#include "proresdec.h"
#include <Availability.h>
#include <AvailabilityMacros.h>
#include <TargetConditionals.h>
#ifndef kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder
# define kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder CFSTR("RequireHardwareAcceleratedVideoDecoder")
#endif
#ifndef kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder
# define kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder CFSTR("EnableHardwareAcceleratedVideoDecoder")
#endif
#if !HAVE_KCMVIDEOCODECTYPE_HEVC
enum { kCMVideoCodecType_HEVC = 'hvc1' };
#endif
#if !HAVE_KCMVIDEOCODECTYPE_VP9
enum { kCMVideoCodecType_VP9 = 'vp09' };
#endif
#define VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING 12
typedef struct VTHWFrame {
CVPixelBufferRef pixbuf;
AVBufferRef *hw_frames_ctx;
} VTHWFrame;
static void videotoolbox_buffer_release(void *opaque, uint8_t *data)
{
VTHWFrame *ref = (VTHWFrame *)data;
av_buffer_unref(&ref->hw_frames_ctx);
CVPixelBufferRelease(ref->pixbuf);
av_free(data);
}
int ff_videotoolbox_buffer_copy(VTContext *vtctx,
const uint8_t *buffer,
uint32_t size)
{
void *tmp;
tmp = av_fast_realloc(vtctx->bitstream,
&vtctx->allocated_size,
size);
if (!tmp)
return AVERROR(ENOMEM);
vtctx->bitstream = tmp;
memcpy(vtctx->bitstream, buffer, size);
vtctx->bitstream_size = size;
return 0;
}
static int videotoolbox_postproc_frame(void *avctx, AVFrame *frame)
{
int ret;
VTHWFrame *ref = (VTHWFrame *)frame->buf[0]->data;
if (!ref->pixbuf) {
av_log(avctx, AV_LOG_ERROR, "No frame decoded?\n");
av_frame_unref(frame);
return AVERROR_EXTERNAL;
}
frame->crop_right = 0;
frame->crop_left = 0;
frame->crop_top = 0;
frame->crop_bottom = 0;
if ((ret = av_vt_pixbuf_set_attachments(avctx, ref->pixbuf, frame)) < 0)
return ret;
frame->data[3] = (uint8_t*)ref->pixbuf;
if (ref->hw_frames_ctx) {
av_buffer_unref(&frame->hw_frames_ctx);
frame->hw_frames_ctx = av_buffer_ref(ref->hw_frames_ctx);
if (!frame->hw_frames_ctx)
return AVERROR(ENOMEM);
}
return 0;
}
int ff_videotoolbox_alloc_frame(AVCodecContext *avctx, AVFrame *frame)
{
size_t size = sizeof(VTHWFrame);
uint8_t *data = NULL;
AVBufferRef *buf = NULL;
int ret = ff_attach_decode_data(frame);
FrameDecodeData *fdd;
if (ret < 0)
return ret;
data = av_mallocz(size);
if (!data)
return AVERROR(ENOMEM);
buf = av_buffer_create(data, size, videotoolbox_buffer_release, NULL, 0);
if (!buf) {
av_freep(&data);
return AVERROR(ENOMEM);
}
frame->buf[0] = buf;
fdd = (FrameDecodeData*)frame->private_ref->data;
fdd->post_process = videotoolbox_postproc_frame;
frame->width = avctx->width;
frame->height = avctx->height;
frame->format = avctx->pix_fmt;
return 0;
}
#define AV_W8(p, v) *(p) = (v)
static int escape_ps(uint8_t* dst, const uint8_t* src, int src_size)
{
int i;
int size = src_size;
uint8_t* p = dst;
for (i = 0; i < src_size; i++) {
if (i + 2 < src_size &&
src[i] == 0x00 &&
src[i + 1] == 0x00 &&
src[i + 2] <= 0x03) {
if (dst) {
*p++ = src[i++];
*p++ = src[i];
*p++ = 0x03;
} else {
i++;
}
size++;
} else if (dst)
*p++ = src[i];
}
if (dst)
av_assert0((p - dst) == size);
return size;
}
CFDataRef ff_videotoolbox_avcc_extradata_create(AVCodecContext *avctx)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
H264Context *h = avctx->priv_data;
CFDataRef data = NULL;
uint8_t *p;
int sps_size = escape_ps(NULL, h->ps.sps->data, h->ps.sps->data_size);
int pps_size = escape_ps(NULL, h->ps.pps->data, h->ps.pps->data_size);
int vt_extradata_size;
uint8_t *vt_extradata;
vt_extradata_size = 6 + 2 + sps_size + 3 + pps_size;
vt_extradata = av_malloc(vt_extradata_size);
if (!vt_extradata)
return NULL;
p = vt_extradata;
AV_W8(p + 0, 1); /* version */
AV_W8(p + 1, h->ps.sps->data[1]); /* profile */
AV_W8(p + 2, h->ps.sps->data[2]); /* profile compat */
AV_W8(p + 3, h->ps.sps->data[3]); /* level */
AV_W8(p + 4, 0xff); /* 6 bits reserved (111111) + 2 bits nal size length - 3 (11) */
AV_W8(p + 5, 0xe1); /* 3 bits reserved (111) + 5 bits number of sps (00001) */
AV_WB16(p + 6, sps_size);
p += 8;
p += escape_ps(p, h->ps.sps->data, h->ps.sps->data_size);
AV_W8(p + 0, 1); /* number of pps */
AV_WB16(p + 1, pps_size);
p += 3;
p += escape_ps(p, h->ps.pps->data, h->ps.pps->data_size);
av_assert0(p - vt_extradata == vt_extradata_size);
// save sps header (profile/level) used to create decoder session,
// so we can detect changes and recreate it.
if (vtctx)
memcpy(vtctx->sps, h->ps.sps->data + 1, 3);
data = CFDataCreate(kCFAllocatorDefault, vt_extradata, vt_extradata_size);
av_free(vt_extradata);
return data;
}
CFDataRef ff_videotoolbox_hvcc_extradata_create(AVCodecContext *avctx)
{
HEVCContext *h = avctx->priv_data;
int i, num_vps = 0, num_sps = 0, num_pps = 0;
const HEVCPPS *pps = h->pps;
const HEVCSPS *sps = pps->sps;
const HEVCVPS *vps = sps->vps;
PTLCommon ptlc = vps->ptl.general_ptl;
VUI vui = sps->vui;
uint8_t parallelismType;
CFDataRef data = NULL;
uint8_t *p;
int vt_extradata_size = 23 + 3 + 3 + 3;
uint8_t *vt_extradata;
#define COUNT_SIZE_PS(T, t) \
for (i = 0; i < HEVC_MAX_##T##PS_COUNT; i++) { \
if (h->ps.t##ps_list[i]) { \
const HEVC##T##PS *lps = h->ps.t##ps_list[i]; \
vt_extradata_size += 2 + escape_ps(NULL, lps->data, lps->data_size); \
num_##t##ps++; \
} \
}
COUNT_SIZE_PS(V, v)
COUNT_SIZE_PS(S, s)
COUNT_SIZE_PS(P, p)
vt_extradata = av_malloc(vt_extradata_size);
if (!vt_extradata)
return NULL;
p = vt_extradata;
/* unsigned int(8) configurationVersion = 1; */
AV_W8(p + 0, 1);
/*
* unsigned int(2) general_profile_space;
* unsigned int(1) general_tier_flag;
* unsigned int(5) general_profile_idc;
*/
AV_W8(p + 1, ptlc.profile_space << 6 |
ptlc.tier_flag << 5 |
ptlc.profile_idc);
/* unsigned int(32) general_profile_compatibility_flags; */
for (i = 0; i < 4; i++) {
AV_W8(p + 2 + i, ptlc.profile_compatibility_flag[i * 8] << 7 |
ptlc.profile_compatibility_flag[i * 8 + 1] << 6 |
ptlc.profile_compatibility_flag[i * 8 + 2] << 5 |
ptlc.profile_compatibility_flag[i * 8 + 3] << 4 |
ptlc.profile_compatibility_flag[i * 8 + 4] << 3 |
ptlc.profile_compatibility_flag[i * 8 + 5] << 2 |
ptlc.profile_compatibility_flag[i * 8 + 6] << 1 |
ptlc.profile_compatibility_flag[i * 8 + 7]);
}
/* unsigned int(48) general_constraint_indicator_flags; */
AV_W8(p + 6, ptlc.progressive_source_flag << 7 |
ptlc.interlaced_source_flag << 6 |
ptlc.non_packed_constraint_flag << 5 |
ptlc.frame_only_constraint_flag << 4);
AV_W8(p + 7, 0);
AV_WN32(p + 8, 0);
/* unsigned int(8) general_level_idc; */
AV_W8(p + 12, ptlc.level_idc);
/*
* bit(4) reserved = ‘1111’b;
* unsigned int(12) min_spatial_segmentation_idc;
*/
AV_W8(p + 13, 0xf0 | (vui.min_spatial_segmentation_idc >> 4));
AV_W8(p + 14, vui.min_spatial_segmentation_idc & 0xff);
/*
* bit(6) reserved = ‘111111’b;
* unsigned int(2) parallelismType;
*/
if (!vui.min_spatial_segmentation_idc)
parallelismType = 0;
else if (pps->entropy_coding_sync_enabled_flag && pps->tiles_enabled_flag)
parallelismType = 0;
else if (pps->entropy_coding_sync_enabled_flag)
parallelismType = 3;
else if (pps->tiles_enabled_flag)
parallelismType = 2;
else
parallelismType = 1;
AV_W8(p + 15, 0xfc | parallelismType);
/*
* bit(6) reserved = ‘111111’b;
* unsigned int(2) chromaFormat;
*/
AV_W8(p + 16, sps->chroma_format_idc | 0xfc);
/*
* bit(5) reserved = ‘11111’b;
* unsigned int(3) bitDepthLumaMinus8;
*/
AV_W8(p + 17, (sps->bit_depth - 8) | 0xf8);
/*
* bit(5) reserved = ‘11111’b;
* unsigned int(3) bitDepthChromaMinus8;
*/
AV_W8(p + 18, (sps->bit_depth_chroma - 8) | 0xf8);
/* bit(16) avgFrameRate; */
AV_WB16(p + 19, 0);
/*
* bit(2) constantFrameRate;
* bit(3) numTemporalLayers;
* bit(1) temporalIdNested;
* unsigned int(2) lengthSizeMinusOne;
*/
AV_W8(p + 21, 0 << 6 |
sps->max_sub_layers << 3 |
sps->temporal_id_nesting << 2 |
3);
/* unsigned int(8) numOfArrays; */
AV_W8(p + 22, 3);
p += 23;
#define APPEND_PS(T, t) \
/* \
* bit(1) array_completeness; \
* unsigned int(1) reserved = 0; \
* unsigned int(6) NAL_unit_type; \
*/ \
AV_W8(p, 1 << 7 | \
HEVC_NAL_##T##PS & 0x3f); \
/* unsigned int(16) numNalus; */ \
AV_WB16(p + 1, num_##t##ps); \
p += 3; \
for (i = 0; i < HEVC_MAX_##T##PS_COUNT; i++) { \
if (h->ps.t##ps_list[i]) { \
const HEVC##T##PS *lps = h->ps.t##ps_list[i]; \
int size = escape_ps(p + 2, lps->data, lps->data_size); \
/* unsigned int(16) nalUnitLength; */ \
AV_WB16(p, size); \
/* bit(8*nalUnitLength) nalUnit; */ \
p += 2 + size; \
} \
}
APPEND_PS(V, v)
APPEND_PS(S, s)
APPEND_PS(P, p)
av_assert0(p - vt_extradata == vt_extradata_size);
data = CFDataCreate(kCFAllocatorDefault, vt_extradata, vt_extradata_size);
av_free(vt_extradata);
return data;
}
int ff_videotoolbox_h264_start_frame(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
H264Context *h = avctx->priv_data;
if (h->is_avc == 1) {
return ff_videotoolbox_buffer_copy(vtctx, buffer, size);
}
return 0;
}
static int videotoolbox_h264_decode_params(AVCodecContext *avctx,
int type,
const uint8_t *buffer,
uint32_t size)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
H264Context *h = avctx->priv_data;
// save sps header (profile/level) used to create decoder session
if (!vtctx->sps[0])
memcpy(vtctx->sps, h->ps.sps->data + 1, 3);
if (type == H264_NAL_SPS) {
if (size > 4 && memcmp(vtctx->sps, buffer + 1, 3) != 0) {
vtctx->reconfig_needed = true;
memcpy(vtctx->sps, buffer + 1, 3);
}
}
// pass-through SPS/PPS changes to the decoder
return ff_videotoolbox_h264_decode_slice(avctx, buffer, size);
}
static int videotoolbox_common_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
void *tmp;
tmp = av_fast_realloc(vtctx->bitstream,
&vtctx->allocated_size,
vtctx->bitstream_size+size+4);
if (!tmp)
return AVERROR(ENOMEM);
vtctx->bitstream = tmp;
AV_WB32(vtctx->bitstream + vtctx->bitstream_size, size);
memcpy(vtctx->bitstream + vtctx->bitstream_size + 4, buffer, size);
vtctx->bitstream_size += size + 4;
return 0;
}
int ff_videotoolbox_h264_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
H264Context *h = avctx->priv_data;
if (h->is_avc == 1)
return 0;
return videotoolbox_common_decode_slice(avctx, buffer, size);
}
#if CONFIG_VIDEOTOOLBOX
// Return the AVVideotoolboxContext that matters currently. Where it comes from
// depends on the API used.
static AVVideotoolboxContext *videotoolbox_get_context(AVCodecContext *avctx)
{
// Somewhat tricky because the user can call av_videotoolbox_default_free()
// at any time, even when the codec is closed.
if (avctx->internal && avctx->internal->hwaccel_priv_data) {
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
if (vtctx->vt_ctx)
return vtctx->vt_ctx;
}
return avctx->hwaccel_context;
}
static void videotoolbox_stop(AVCodecContext *avctx)
{
AVVideotoolboxContext *videotoolbox = videotoolbox_get_context(avctx);
if (!videotoolbox)
return;
if (videotoolbox->cm_fmt_desc) {
CFRelease(videotoolbox->cm_fmt_desc);
videotoolbox->cm_fmt_desc = NULL;
}
if (videotoolbox->session) {
VTDecompressionSessionInvalidate(videotoolbox->session);
CFRelease(videotoolbox->session);
videotoolbox->session = NULL;
}
}
int ff_videotoolbox_uninit(AVCodecContext *avctx)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
if (!vtctx)
return 0;
av_freep(&vtctx->bitstream);
if (vtctx->frame)
CVPixelBufferRelease(vtctx->frame);
if (vtctx->vt_ctx)
videotoolbox_stop(avctx);
av_buffer_unref(&vtctx->cached_hw_frames_ctx);
av_freep(&vtctx->vt_ctx);
return 0;
}
static int videotoolbox_buffer_create(AVCodecContext *avctx, AVFrame *frame)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
CVPixelBufferRef pixbuf = (CVPixelBufferRef)vtctx->frame;
OSType pixel_format = CVPixelBufferGetPixelFormatType(pixbuf);
enum AVPixelFormat sw_format = av_map_videotoolbox_format_to_pixfmt(pixel_format);
int width = CVPixelBufferGetWidth(pixbuf);
int height = CVPixelBufferGetHeight(pixbuf);
AVHWFramesContext *cached_frames;
VTHWFrame *ref;
int ret;
if (!frame->buf[0] || frame->data[3]) {
av_log(avctx, AV_LOG_ERROR, "videotoolbox: invalid state\n");
av_frame_unref(frame);
return AVERROR_EXTERNAL;
}
ref = (VTHWFrame *)frame->buf[0]->data;
if (ref->pixbuf)
CVPixelBufferRelease(ref->pixbuf);
ref->pixbuf = vtctx->frame;
vtctx->frame = NULL;
// Old API code path.
if (!vtctx->cached_hw_frames_ctx)
return 0;
cached_frames = (AVHWFramesContext*)vtctx->cached_hw_frames_ctx->data;
if (cached_frames->sw_format != sw_format ||
cached_frames->width != width ||
cached_frames->height != height) {
AVBufferRef *hw_frames_ctx = av_hwframe_ctx_alloc(cached_frames->device_ref);
AVHWFramesContext *hw_frames;
AVVTFramesContext *hw_ctx;
if (!hw_frames_ctx)
return AVERROR(ENOMEM);
hw_frames = (AVHWFramesContext*)hw_frames_ctx->data;
hw_frames->format = cached_frames->format;
hw_frames->sw_format = sw_format;
hw_frames->width = width;
hw_frames->height = height;
hw_ctx = hw_frames->hwctx;
hw_ctx->color_range = avctx->color_range;
ret = av_hwframe_ctx_init(hw_frames_ctx);
if (ret < 0) {
av_buffer_unref(&hw_frames_ctx);
return ret;
}
av_buffer_unref(&vtctx->cached_hw_frames_ctx);
vtctx->cached_hw_frames_ctx = hw_frames_ctx;
}
av_buffer_unref(&ref->hw_frames_ctx);
ref->hw_frames_ctx = av_buffer_ref(vtctx->cached_hw_frames_ctx);
if (!ref->hw_frames_ctx)
return AVERROR(ENOMEM);
return 0;
}
static void videotoolbox_write_mp4_descr_length(PutByteContext *pb, int length)
{
int i;
uint8_t b;
for (i = 3; i >= 0; i--) {
b = (length >> (i * 7)) & 0x7F;
if (i != 0)
b |= 0x80;
bytestream2_put_byteu(pb, b);
}
}
static CFDataRef videotoolbox_esds_extradata_create(AVCodecContext *avctx)
{
CFDataRef data;
uint8_t *rw_extradata;
PutByteContext pb;
int full_size = 3 + 5 + 13 + 5 + avctx->extradata_size + 3;
// ES_DescrTag data + DecoderConfigDescrTag + data + DecSpecificInfoTag + size + SLConfigDescriptor
int config_size = 13 + 5 + avctx->extradata_size;
int s;
if (!(rw_extradata = av_mallocz(full_size + VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING)))
return NULL;
bytestream2_init_writer(&pb, rw_extradata, full_size + VIDEOTOOLBOX_ESDS_EXTRADATA_PADDING);
bytestream2_put_byteu(&pb, 0); // version
bytestream2_put_ne24(&pb, 0); // flags
// elementary stream descriptor
bytestream2_put_byteu(&pb, 0x03); // ES_DescrTag
videotoolbox_write_mp4_descr_length(&pb, full_size);
bytestream2_put_ne16(&pb, 0); // esid
bytestream2_put_byteu(&pb, 0); // stream priority (0-32)
// decoder configuration descriptor
bytestream2_put_byteu(&pb, 0x04); // DecoderConfigDescrTag
videotoolbox_write_mp4_descr_length(&pb, config_size);
bytestream2_put_byteu(&pb, 32); // object type indication. 32 = AV_CODEC_ID_MPEG4
bytestream2_put_byteu(&pb, 0x11); // stream type
bytestream2_put_ne24(&pb, 0); // buffer size
bytestream2_put_ne32(&pb, 0); // max bitrate
bytestream2_put_ne32(&pb, 0); // avg bitrate
// decoder specific descriptor
bytestream2_put_byteu(&pb, 0x05); ///< DecSpecificInfoTag
videotoolbox_write_mp4_descr_length(&pb, avctx->extradata_size);
bytestream2_put_buffer(&pb, avctx->extradata, avctx->extradata_size);
// SLConfigDescriptor
bytestream2_put_byteu(&pb, 0x06); // SLConfigDescrTag
bytestream2_put_byteu(&pb, 0x01); // length
bytestream2_put_byteu(&pb, 0x02); //
s = bytestream2_size_p(&pb);
data = CFDataCreate(kCFAllocatorDefault, rw_extradata, s);
av_freep(&rw_extradata);
return data;
}
static CMSampleBufferRef videotoolbox_sample_buffer_create(CMFormatDescriptionRef fmt_desc,
void *buffer,
int size)
{
OSStatus status;
CMBlockBufferRef block_buf;
CMSampleBufferRef sample_buf;
block_buf = NULL;
sample_buf = NULL;
status = CMBlockBufferCreateWithMemoryBlock(kCFAllocatorDefault,// structureAllocator
buffer, // memoryBlock
size, // blockLength
kCFAllocatorNull, // blockAllocator
NULL, // customBlockSource
0, // offsetToData
size, // dataLength
0, // flags
&block_buf);
if (!status) {
status = CMSampleBufferCreate(kCFAllocatorDefault, // allocator
block_buf, // dataBuffer
TRUE, // dataReady
0, // makeDataReadyCallback
0, // makeDataReadyRefcon
fmt_desc, // formatDescription
1, // numSamples
0, // numSampleTimingEntries
NULL, // sampleTimingArray
0, // numSampleSizeEntries
NULL, // sampleSizeArray
&sample_buf);
}
if (block_buf)
CFRelease(block_buf);
return sample_buf;
}
static void videotoolbox_decoder_callback(void *opaque,
void *sourceFrameRefCon,
OSStatus status,
VTDecodeInfoFlags flags,
CVImageBufferRef image_buffer,
CMTime pts,
CMTime duration)
{
VTContext *vtctx = opaque;
if (vtctx->frame) {
CVPixelBufferRelease(vtctx->frame);
vtctx->frame = NULL;
}
if (!image_buffer) {
av_log(vtctx->logctx, status ? AV_LOG_WARNING : AV_LOG_DEBUG,
"vt decoder cb: output image buffer is null: %i\n", status);
return;
}
vtctx->frame = CVPixelBufferRetain(image_buffer);
}
static OSStatus videotoolbox_session_decode_frame(AVCodecContext *avctx)
{
OSStatus status;
CMSampleBufferRef sample_buf;
AVVideotoolboxContext *videotoolbox = videotoolbox_get_context(avctx);
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
sample_buf = videotoolbox_sample_buffer_create(videotoolbox->cm_fmt_desc,
vtctx->bitstream,
vtctx->bitstream_size);
if (!sample_buf)
return -1;
status = VTDecompressionSessionDecodeFrame(videotoolbox->session,
sample_buf,
0, // decodeFlags
NULL, // sourceFrameRefCon
0); // infoFlagsOut
if (status == noErr)
status = VTDecompressionSessionWaitForAsynchronousFrames(videotoolbox->session);
CFRelease(sample_buf);
return status;
}
static CMVideoFormatDescriptionRef videotoolbox_format_desc_create(CMVideoCodecType codec_type,
CFDictionaryRef decoder_spec,
int width,
int height)
{
CMFormatDescriptionRef cm_fmt_desc;
OSStatus status;
status = CMVideoFormatDescriptionCreate(kCFAllocatorDefault,
codec_type,
width,
height,
decoder_spec, // Dictionary of extension
&cm_fmt_desc);
if (status)
return NULL;
return cm_fmt_desc;
}
static CFDictionaryRef videotoolbox_buffer_attributes_create(int width,
int height,
OSType pix_fmt)
{
CFMutableDictionaryRef buffer_attributes;
CFMutableDictionaryRef io_surface_properties;
CFNumberRef cv_pix_fmt;
CFNumberRef w;
CFNumberRef h;
w = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &width);
h = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &height);
cv_pix_fmt = CFNumberCreate(kCFAllocatorDefault, kCFNumberSInt32Type, &pix_fmt);
buffer_attributes = CFDictionaryCreateMutable(kCFAllocatorDefault,
4,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
io_surface_properties = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
if (pix_fmt)
CFDictionarySetValue(buffer_attributes, kCVPixelBufferPixelFormatTypeKey, cv_pix_fmt);
CFDictionarySetValue(buffer_attributes, kCVPixelBufferIOSurfacePropertiesKey, io_surface_properties);
CFDictionarySetValue(buffer_attributes, kCVPixelBufferWidthKey, w);
CFDictionarySetValue(buffer_attributes, kCVPixelBufferHeightKey, h);
#if TARGET_OS_IPHONE
CFDictionarySetValue(buffer_attributes, kCVPixelBufferOpenGLESCompatibilityKey, kCFBooleanTrue);
#else
CFDictionarySetValue(buffer_attributes, kCVPixelBufferIOSurfaceOpenGLTextureCompatibilityKey, kCFBooleanTrue);
#endif
CFRelease(io_surface_properties);
CFRelease(cv_pix_fmt);
CFRelease(w);
CFRelease(h);
return buffer_attributes;
}
static CFDictionaryRef videotoolbox_decoder_config_create(CMVideoCodecType codec_type,
AVCodecContext *avctx)
{
CFMutableDictionaryRef avc_info;
CFDataRef data = NULL;
CFMutableDictionaryRef config_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
0,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue(config_info,
codec_type == kCMVideoCodecType_HEVC ?
kVTVideoDecoderSpecification_EnableHardwareAcceleratedVideoDecoder :
kVTVideoDecoderSpecification_RequireHardwareAcceleratedVideoDecoder,
kCFBooleanTrue);
avc_info = CFDictionaryCreateMutable(kCFAllocatorDefault,
1,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
switch (codec_type) {
case kCMVideoCodecType_MPEG4Video :
if (avctx->extradata_size)
data = videotoolbox_esds_extradata_create(avctx);
if (data)
CFDictionarySetValue(avc_info, CFSTR("esds"), data);
break;
case kCMVideoCodecType_H264 :
data = ff_videotoolbox_avcc_extradata_create(avctx);
if (data)
CFDictionarySetValue(avc_info, CFSTR("avcC"), data);
break;
case kCMVideoCodecType_HEVC :
data = ff_videotoolbox_hvcc_extradata_create(avctx);
if (data)
CFDictionarySetValue(avc_info, CFSTR("hvcC"), data);
break;
#if CONFIG_VP9_VIDEOTOOLBOX_HWACCEL
case kCMVideoCodecType_VP9 :
data = ff_videotoolbox_vpcc_extradata_create(avctx);
if (data)
CFDictionarySetValue(avc_info, CFSTR("vpcC"), data);
break;
#endif
default:
break;
}
CFDictionarySetValue(config_info,
kCMFormatDescriptionExtension_SampleDescriptionExtensionAtoms,
avc_info);
if (data)
CFRelease(data);
CFRelease(avc_info);
return config_info;
}
static int videotoolbox_start(AVCodecContext *avctx)
{
AVVideotoolboxContext *videotoolbox = videotoolbox_get_context(avctx);
OSStatus status;
VTDecompressionOutputCallbackRecord decoder_cb;
CFDictionaryRef decoder_spec;
CFDictionaryRef buf_attr;
if (!videotoolbox) {
av_log(avctx, AV_LOG_ERROR, "hwaccel context is not set\n");
return -1;
}
switch( avctx->codec_id ) {
case AV_CODEC_ID_H263 :
videotoolbox->cm_codec_type = kCMVideoCodecType_H263;
break;
case AV_CODEC_ID_H264 :
videotoolbox->cm_codec_type = kCMVideoCodecType_H264;
break;
case AV_CODEC_ID_HEVC :
videotoolbox->cm_codec_type = kCMVideoCodecType_HEVC;
break;
case AV_CODEC_ID_MPEG1VIDEO :
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG1Video;
break;
case AV_CODEC_ID_MPEG2VIDEO :
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG2Video;
break;
case AV_CODEC_ID_MPEG4 :
videotoolbox->cm_codec_type = kCMVideoCodecType_MPEG4Video;
break;
case AV_CODEC_ID_PRORES :
switch (avctx->codec_tag) {
default:
av_log(avctx, AV_LOG_WARNING, "Unknown prores profile %d\n", avctx->codec_tag);
// fall-through
case MKTAG('a','p','c','o'): // kCMVideoCodecType_AppleProRes422Proxy
case MKTAG('a','p','c','s'): // kCMVideoCodecType_AppleProRes422LT
case MKTAG('a','p','c','n'): // kCMVideoCodecType_AppleProRes422
case MKTAG('a','p','c','h'): // kCMVideoCodecType_AppleProRes422HQ
case MKTAG('a','p','4','h'): // kCMVideoCodecType_AppleProRes4444
case MKTAG('a','p','4','x'): // kCMVideoCodecType_AppleProRes4444XQ
videotoolbox->cm_codec_type = av_bswap32(avctx->codec_tag);
break;
}
break;
case AV_CODEC_ID_VP9 :
videotoolbox->cm_codec_type = kCMVideoCodecType_VP9;
break;
default :
break;
}
#if defined(MAC_OS_X_VERSION_10_9) && !TARGET_OS_IPHONE && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_9) && AV_HAS_BUILTIN(__builtin_available)
if (avctx->codec_id == AV_CODEC_ID_PRORES) {
if (__builtin_available(macOS 10.9, *)) {
VTRegisterProfessionalVideoWorkflowVideoDecoders();
}
}
#endif
#if defined(MAC_OS_VERSION_11_0) && !TARGET_OS_IPHONE && (MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_VERSION_11_0) && AV_HAS_BUILTIN(__builtin_available)
if (__builtin_available(macOS 11.0, *)) {
VTRegisterSupplementalVideoDecoderIfAvailable(videotoolbox->cm_codec_type);
}
#endif
decoder_spec = videotoolbox_decoder_config_create(videotoolbox->cm_codec_type, avctx);
if (!decoder_spec) {
av_log(avctx, AV_LOG_ERROR, "decoder specification creation failed\n");
return -1;
}
videotoolbox->cm_fmt_desc = videotoolbox_format_desc_create(videotoolbox->cm_codec_type,
decoder_spec,
avctx->width,
avctx->height);
if (!videotoolbox->cm_fmt_desc) {
if (decoder_spec)
CFRelease(decoder_spec);
av_log(avctx, AV_LOG_ERROR, "format description creation failed\n");
return -1;
}
buf_attr = videotoolbox_buffer_attributes_create(avctx->width,
avctx->height,
videotoolbox->cv_pix_fmt_type);
decoder_cb.decompressionOutputCallback = videotoolbox_decoder_callback;
decoder_cb.decompressionOutputRefCon = avctx->internal->hwaccel_priv_data;
status = VTDecompressionSessionCreate(NULL, // allocator
videotoolbox->cm_fmt_desc, // videoFormatDescription
decoder_spec, // videoDecoderSpecification
buf_attr, // destinationImageBufferAttributes
&decoder_cb, // outputCallback
&videotoolbox->session); // decompressionSessionOut
if (decoder_spec)
CFRelease(decoder_spec);
if (buf_attr)
CFRelease(buf_attr);
switch (status) {
case kVTVideoDecoderNotAvailableNowErr:
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox session not available.\n");
return AVERROR(ENOSYS);
case kVTVideoDecoderUnsupportedDataFormatErr:
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox does not support this format.\n");
return AVERROR(ENOSYS);
case kVTCouldNotFindVideoDecoderErr:
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox decoder for this format not found.\n");
return AVERROR(ENOSYS);
case kVTVideoDecoderMalfunctionErr:
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox malfunction.\n");
return AVERROR(EINVAL);
case kVTVideoDecoderBadDataErr:
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox reported invalid data.\n");
return AVERROR_INVALIDDATA;
case 0:
return 0;
default:
av_log(avctx, AV_LOG_VERBOSE, "Unknown VideoToolbox session creation error %d\n", (int)status);
return AVERROR_UNKNOWN;
}
}
static const char *videotoolbox_error_string(OSStatus status)
{
switch (status) {
case kVTVideoDecoderBadDataErr:
return "bad data";
case kVTVideoDecoderMalfunctionErr:
return "decoder malfunction";
case kVTInvalidSessionErr:
return "invalid session";
}
return "unknown";
}
int ff_videotoolbox_common_end_frame(AVCodecContext *avctx, AVFrame *frame)
{
OSStatus status;
AVVideotoolboxContext *videotoolbox = videotoolbox_get_context(avctx);
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
if (vtctx->reconfig_needed == true) {
vtctx->reconfig_needed = false;
av_log(avctx, AV_LOG_VERBOSE, "VideoToolbox decoder needs reconfig, restarting..\n");
videotoolbox_stop(avctx);
if (videotoolbox_start(avctx) != 0) {
return AVERROR_EXTERNAL;
}
}
if (!videotoolbox->session || !vtctx->bitstream || !vtctx->bitstream_size)
return AVERROR_INVALIDDATA;
status = videotoolbox_session_decode_frame(avctx);
if (status != noErr) {
if (status == kVTVideoDecoderMalfunctionErr || status == kVTInvalidSessionErr)
vtctx->reconfig_needed = true;
av_log(avctx, AV_LOG_ERROR, "Failed to decode frame (%s, %d)\n", videotoolbox_error_string(status), (int)status);
return AVERROR_UNKNOWN;
}
if (!vtctx->frame) {
vtctx->reconfig_needed = true;
return AVERROR_UNKNOWN;
}
return videotoolbox_buffer_create(avctx, frame);
}
static int videotoolbox_h264_end_frame(AVCodecContext *avctx)
{
H264Context *h = avctx->priv_data;
AVFrame *frame = h->cur_pic_ptr->f;
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
int ret = ff_videotoolbox_common_end_frame(avctx, frame);
vtctx->bitstream_size = 0;
return ret;
}
static int videotoolbox_hevc_start_frame(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
return 0;
}
static int videotoolbox_hevc_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
return videotoolbox_common_decode_slice(avctx, buffer, size);
}
static int videotoolbox_hevc_decode_params(AVCodecContext *avctx,
int type,
const uint8_t *buffer,
uint32_t size)
{
return videotoolbox_common_decode_slice(avctx, buffer, size);
}
static int videotoolbox_hevc_end_frame(AVCodecContext *avctx)
{
HEVCContext *h = avctx->priv_data;
AVFrame *frame = h->cur_frame->f;
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
int ret;
h->output_frame->crop_right = 0;
h->output_frame->crop_left = 0;
h->output_frame->crop_top = 0;
h->output_frame->crop_bottom = 0;
ret = ff_videotoolbox_common_end_frame(avctx, frame);
vtctx->bitstream_size = 0;
return ret;
}
static int videotoolbox_mpeg_start_frame(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
return ff_videotoolbox_buffer_copy(vtctx, buffer, size);
}
static int videotoolbox_mpeg_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
return 0;
}
static int videotoolbox_mpeg_end_frame(AVCodecContext *avctx)
{
MpegEncContext *s = avctx->priv_data;
AVFrame *frame = s->cur_pic.ptr->f;
return ff_videotoolbox_common_end_frame(avctx, frame);
}
static int videotoolbox_prores_start_frame(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
return 0;
}
static int videotoolbox_prores_decode_slice(AVCodecContext *avctx,
const uint8_t *buffer,
uint32_t size)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
return ff_videotoolbox_buffer_copy(vtctx, buffer, size);
}
static int videotoolbox_prores_end_frame(AVCodecContext *avctx)
{
ProresContext *ctx = avctx->priv_data;
AVFrame *frame = ctx->frame;
return ff_videotoolbox_common_end_frame(avctx, frame);
}
static enum AVPixelFormat videotoolbox_best_pixel_format(AVCodecContext *avctx) {
int depth;
const AVPixFmtDescriptor *descriptor = av_pix_fmt_desc_get(avctx->sw_pix_fmt);
if (!descriptor)
return AV_PIX_FMT_NV12; // same as av_videotoolbox_alloc_context()
if (descriptor->flags & AV_PIX_FMT_FLAG_ALPHA)
return AV_PIX_FMT_AYUV64;
depth = descriptor->comp[0].depth;
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR16BIPLANARVIDEORANGE
if (depth > 10)
return descriptor->log2_chroma_w == 0 ? AV_PIX_FMT_P416 : AV_PIX_FMT_P216;
#endif
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR10BIPLANARVIDEORANGE
if (descriptor->log2_chroma_w == 0) {
#if HAVE_KCVPIXELFORMATTYPE_444YPCBCR8BIPLANARVIDEORANGE
if (depth <= 8)
return AV_PIX_FMT_NV24;
#endif
return AV_PIX_FMT_P410;
}
#endif
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR10BIPLANARVIDEORANGE
if (descriptor->log2_chroma_h == 0) {
#if HAVE_KCVPIXELFORMATTYPE_422YPCBCR8BIPLANARVIDEORANGE
if (depth <= 8)
return AV_PIX_FMT_NV16;
#endif
return AV_PIX_FMT_P210;
}
#endif
#if HAVE_KCVPIXELFORMATTYPE_420YPCBCR10BIPLANARVIDEORANGE
if (depth > 8) {
return AV_PIX_FMT_P010;
}
#endif
return AV_PIX_FMT_NV12;
}
static AVVideotoolboxContext *videotoolbox_alloc_context_with_pix_fmt(enum AVPixelFormat pix_fmt,
bool full_range)
{
AVVideotoolboxContext *ret = av_mallocz(sizeof(*ret));
if (ret) {
OSType cv_pix_fmt_type = av_map_videotoolbox_format_from_pixfmt2(pix_fmt, full_range);
if (cv_pix_fmt_type == 0) {
cv_pix_fmt_type = kCVPixelFormatType_420YpCbCr8BiPlanarVideoRange;
}
ret->cv_pix_fmt_type = cv_pix_fmt_type;
}
return ret;
}
int ff_videotoolbox_common_init(AVCodecContext *avctx)
{
VTContext *vtctx = avctx->internal->hwaccel_priv_data;
AVHWFramesContext *hw_frames;
AVVTFramesContext *hw_ctx;
int err;
bool full_range;
vtctx->logctx = avctx;
if (!avctx->hw_frames_ctx && !avctx->hw_device_ctx &&
avctx->hwaccel_context)
return videotoolbox_start(avctx);
if (!avctx->hw_frames_ctx && !avctx->hw_device_ctx) {
av_log(avctx, AV_LOG_ERROR,
"Either hw_frames_ctx or hw_device_ctx must be set.\n");
return AVERROR(EINVAL);
}
vtctx->vt_ctx = videotoolbox_alloc_context_with_pix_fmt(AV_PIX_FMT_NONE, false);
if (!vtctx->vt_ctx) {
err = AVERROR(ENOMEM);
goto fail;
}
if (avctx->hw_frames_ctx) {
hw_frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
} else {
avctx->hw_frames_ctx = av_hwframe_ctx_alloc(avctx->hw_device_ctx);
if (!avctx->hw_frames_ctx) {
err = AVERROR(ENOMEM);
goto fail;
}
hw_frames = (AVHWFramesContext*)avctx->hw_frames_ctx->data;
hw_frames->format = AV_PIX_FMT_VIDEOTOOLBOX;
hw_frames->sw_format = videotoolbox_best_pixel_format(avctx);
hw_frames->width = avctx->width;
hw_frames->height = avctx->height;
hw_ctx = hw_frames->hwctx;
hw_ctx->color_range = avctx->color_range;
err = av_hwframe_ctx_init(avctx->hw_frames_ctx);
if (err < 0) {
av_buffer_unref(&avctx->hw_frames_ctx);
goto fail;
}
}
vtctx->cached_hw_frames_ctx = av_buffer_ref(avctx->hw_frames_ctx);
if (!vtctx->cached_hw_frames_ctx) {
err = AVERROR(ENOMEM);
goto fail;
}
full_range = avctx->color_range == AVCOL_RANGE_JPEG;
vtctx->vt_ctx->cv_pix_fmt_type =
av_map_videotoolbox_format_from_pixfmt2(hw_frames->sw_format, full_range);
if (!vtctx->vt_ctx->cv_pix_fmt_type) {
const AVPixFmtDescriptor *attempted_format =
av_pix_fmt_desc_get(hw_frames->sw_format);
av_log(avctx, AV_LOG_ERROR,
"Failed to map underlying FFmpeg pixel format %s (%s range) to "
"a VideoToolbox format!\n",
attempted_format ? attempted_format->name : "<unknown>",
av_color_range_name(avctx->color_range));
err = AVERROR(EINVAL);
goto fail;
}
err = videotoolbox_start(avctx);
if (err < 0)
goto fail;
return 0;
fail:
ff_videotoolbox_uninit(avctx);
return err;
}
int ff_videotoolbox_frame_params(AVCodecContext *avctx,
AVBufferRef *hw_frames_ctx)
{
AVHWFramesContext *frames_ctx = (AVHWFramesContext*)hw_frames_ctx->data;
frames_ctx->format = AV_PIX_FMT_VIDEOTOOLBOX;
frames_ctx->width = avctx->coded_width;
frames_ctx->height = avctx->coded_height;
frames_ctx->sw_format = videotoolbox_best_pixel_format(avctx);
return 0;
}
const FFHWAccel ff_h263_videotoolbox_hwaccel = {
.p.name = "h263_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_H263,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_mpeg_start_frame,
.decode_slice = videotoolbox_mpeg_decode_slice,
.end_frame = videotoolbox_mpeg_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_hevc_videotoolbox_hwaccel = {
.p.name = "hevc_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_HEVC,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_hevc_start_frame,
.decode_slice = videotoolbox_hevc_decode_slice,
.decode_params = videotoolbox_hevc_decode_params,
.end_frame = videotoolbox_hevc_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_h264_videotoolbox_hwaccel = {
.p.name = "h264_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_H264,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = ff_videotoolbox_h264_start_frame,
.decode_slice = ff_videotoolbox_h264_decode_slice,
.decode_params = videotoolbox_h264_decode_params,
.end_frame = videotoolbox_h264_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_mpeg1_videotoolbox_hwaccel = {
.p.name = "mpeg1_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_MPEG1VIDEO,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_mpeg_start_frame,
.decode_slice = videotoolbox_mpeg_decode_slice,
.end_frame = videotoolbox_mpeg_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_mpeg2_videotoolbox_hwaccel = {
.p.name = "mpeg2_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_MPEG2VIDEO,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_mpeg_start_frame,
.decode_slice = videotoolbox_mpeg_decode_slice,
.end_frame = videotoolbox_mpeg_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_mpeg4_videotoolbox_hwaccel = {
.p.name = "mpeg4_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_MPEG4,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_mpeg_start_frame,
.decode_slice = videotoolbox_mpeg_decode_slice,
.end_frame = videotoolbox_mpeg_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
const FFHWAccel ff_prores_videotoolbox_hwaccel = {
.p.name = "prores_videotoolbox",
.p.type = AVMEDIA_TYPE_VIDEO,
.p.id = AV_CODEC_ID_PRORES,
.p.pix_fmt = AV_PIX_FMT_VIDEOTOOLBOX,
.alloc_frame = ff_videotoolbox_alloc_frame,
.start_frame = videotoolbox_prores_start_frame,
.decode_slice = videotoolbox_prores_decode_slice,
.end_frame = videotoolbox_prores_end_frame,
.frame_params = ff_videotoolbox_frame_params,
.init = ff_videotoolbox_common_init,
.uninit = ff_videotoolbox_uninit,
.priv_data_size = sizeof(VTContext),
};
#endif /* CONFIG_VIDEOTOOLBOX */
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