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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00

vdpau: Add context and common helpers for hwaccel support

Signed-off-by: Diego Biurrun <diego@biurrun.de>
This commit is contained in:
Rémi Denis-Courmont 2013-01-12 17:53:43 +02:00 committed by Diego Biurrun
parent 22c436c85e
commit 44e065d56c
6 changed files with 131 additions and 7 deletions

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@ -4,6 +4,7 @@ releases are sorted from youngest to oldest.
version 9:
- av_basename and av_dirname
- adobe and limelight publisher authentication in RTMP
- VDPAU hardware acceleration through normal hwaccel
version 9_beta3:

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@ -13,6 +13,9 @@ libavutil: 2012-10-22
API changes, most recent first:
2013-01-13 - xxxxxxx - lavc 54.36.0 - vdpau.h
Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
Add AV_PIX_FMT_VDPAU flag.

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@ -38,6 +38,55 @@
* @{
*/
int ff_vdpau_common_start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
AVVDPAUContext *hwctx = avctx->hwaccel_context;
hwctx->bitstream_buffers_used = 0;
return 0;
}
int ff_vdpau_common_end_frame(AVCodecContext *avctx)
{
MpegEncContext * const s = avctx->priv_data;
AVVDPAUContext *hwctx = avctx->hwaccel_context;
if (hwctx->bitstream_buffers_used) {
VdpVideoSurface surf = ff_vdpau_get_surface_id(s->current_picture_ptr);
hwctx->render(hwctx->decoder, surf, (void *)&hwctx->info,
hwctx->bitstream_buffers_used, hwctx->bitstream_buffers);
ff_draw_horiz_band(s, 0, s->avctx->height);
hwctx->bitstream_buffers_used = 0;
}
return 0;
}
int ff_vdpau_add_buffer(AVCodecContext *avctx,
const uint8_t *buf, uint32_t size)
{
AVVDPAUContext *hwctx = avctx->hwaccel_context;
VdpBitstreamBuffer *buffers = hwctx->bitstream_buffers;
buffers = av_fast_realloc(buffers, &hwctx->bitstream_buffers_allocated,
(hwctx->bitstream_buffers_used + 1) * sizeof(*buffers));
if (!buffers)
return AVERROR(ENOMEM);
hwctx->bitstream_buffers = buffers;
buffers += hwctx->bitstream_buffers_used++;
buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
buffers->bitstream = buf;
buffers->bitstream_bytes = size;
return 0;
}
/* Obsolete non-hwaccel VDPAU support below... */
void ff_vdpau_h264_set_reference_frames(MpegEncContext *s)
{
H264Context *h = s->avctx->priv_data;

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@ -52,6 +52,68 @@
#include <vdpau/vdpau.h>
#include <vdpau/vdpau_x11.h>
union VdpPictureInfo {
VdpPictureInfoH264 h264;
VdpPictureInfoMPEG1Or2 mpeg;
VdpPictureInfoVC1 vc1;
VdpPictureInfoMPEG4Part2 mpeg4;
};
/**
* This structure is used to share data between the libavcodec library and
* the client video application.
* The user shall zero-allocate the structure and make it available as
* AVCodecContext.hwaccel_context. Members can be set by the user once
* during initialization or through each AVCodecContext.get_buffer()
* function call. In any case, they must be valid prior to calling
* decoding functions.
*/
typedef struct AVVDPAUContext {
/**
* VDPAU decoder handle
*
* Set by user.
*/
VdpDecoder decoder;
/**
* VDPAU decoder render callback
*
* Set by the user.
*/
VdpDecoderRender *render;
/**
* VDPAU picture information
*
* Set by libavcodec.
*/
union VdpPictureInfo info;
/**
* Allocated size of the bitstream_buffers table.
*
* Set by libavcodec.
*/
int bitstream_buffers_allocated;
/**
* Useful bitstream buffers in the bitstream buffers table.
*
* Set by libavcodec.
*/
int bitstream_buffers_used;
/**
* Table of bitstream buffers.
* The user is responsible for freeing this buffer using av_freep().
*
* Set by libavcodec.
*/
VdpBitstreamBuffer *bitstream_buffers;
} AVVDPAUContext;
/** @brief The videoSurface is used for rendering. */
#define FF_VDPAU_STATE_USED_FOR_RENDER 1
@ -74,12 +136,7 @@ struct vdpau_render_state {
int state; ///< Holds FF_VDPAU_STATE_* values.
/** picture parameter information for all supported codecs */
union VdpPictureInfo {
VdpPictureInfoH264 h264;
VdpPictureInfoMPEG1Or2 mpeg;
VdpPictureInfoVC1 vc1;
VdpPictureInfoMPEG4Part2 mpeg4;
} info;
union VdpPictureInfo info;
/** Describe size/location of the compressed video data.
Set to 0 when freeing bitstream_buffers. */

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@ -27,6 +27,20 @@
#include <stdint.h>
#include "mpegvideo.h"
/** Extract VdpVideoSurface from a Picture */
static inline uintptr_t ff_vdpau_get_surface_id(Picture *pic)
{
return (uintptr_t)pic->f.data[3];
}
int ff_vdpau_common_start_frame(AVCodecContext *avctx,
av_unused const uint8_t *buffer,
av_unused uint32_t size);
int ff_vdpau_common_end_frame(AVCodecContext *avctx);
int ff_vdpau_add_buffer(AVCodecContext *avctx,
const uint8_t *buf, uint32_t buf_size);
void ff_vdpau_add_data_chunk(MpegEncContext *s, const uint8_t *buf,
int buf_size);

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@ -27,7 +27,7 @@
*/
#define LIBAVCODEC_VERSION_MAJOR 54
#define LIBAVCODEC_VERSION_MINOR 35
#define LIBAVCODEC_VERSION_MINOR 36
#define LIBAVCODEC_VERSION_MICRO 0
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \