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/*
* Video Decode and Presentation API for UNIX (VDPAU) is used for
* HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
*
* Copyright (c) 2008 NVIDIA
*
* 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
*/
#include <limits.h>
#include "avcodec.h"
#include "h264.h"
#include "vc1.h"
#undef NDEBUG
#include <assert.h>
#include "vdpau.h"
#include "vdpau_internal.h"
/**
* @addtogroup VDPAU_Decoding
*
* @{
*/
int ff_vdpau_common_start_frame(Picture *pic,
av_unused const uint8_t *buffer,
av_unused uint32_t size)
{
struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
pic_ctx->bitstream_buffers_allocated = 0;
pic_ctx->bitstream_buffers_used = 0;
pic_ctx->bitstream_buffers = NULL;
return 0;
}
#if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
{
AVVDPAUContext *hwctx = avctx->hwaccel_context;
MpegEncContext *s = avctx->priv_data;
Picture *pic = s->current_picture_ptr;
struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
av_freep(&pic_ctx->bitstream_buffers);
return 0;
}
#endif
int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
{
struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
(pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
if (!buffers)
return AVERROR(ENOMEM);
pic_ctx->bitstream_buffers = buffers;
buffers += pic_ctx->bitstream_buffers_used++;
buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
buffers->bitstream = buf;
buffers->bitstream_bytes = size;
return 0;
}
int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
{
#define PROFILE(prof) \
do { \
*profile = prof; \
return 0; \
} while (0)
switch (avctx->codec_id) {
case AV_CODEC_ID_MPEG1VIDEO: PROFILE(VDP_DECODER_PROFILE_MPEG1);
case AV_CODEC_ID_MPEG2VIDEO:
switch (avctx->profile) {
case FF_PROFILE_MPEG2_MAIN: PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
case FF_PROFILE_MPEG2_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_H263: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
case AV_CODEC_ID_MPEG4:
switch (avctx->profile) {
case FF_PROFILE_MPEG4_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_H264:
switch (avctx->profile) {
case FF_PROFILE_H264_CONSTRAINED_BASELINE:
case FF_PROFILE_H264_BASELINE: PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
case FF_PROFILE_H264_MAIN: PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
case FF_PROFILE_H264_HIGH: PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
default: return AVERROR(EINVAL);
}
case AV_CODEC_ID_WMV3:
case AV_CODEC_ID_VC1:
switch (avctx->profile) {
case FF_PROFILE_VC1_SIMPLE: PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
case FF_PROFILE_VC1_MAIN: PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
case FF_PROFILE_VC1_ADVANCED: PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
default: return AVERROR(EINVAL);
}
}
return AVERROR(EINVAL);
}
AVVDPAUContext *av_vdpau_alloc_context(void)
{
return av_mallocz(sizeof(AVVDPAUContext));
}
/* @}*/
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