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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(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;
}
#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;
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_mpeg_draw_horiz_band(s, 0, s->avctx->height);
hwctx->bitstream_buffers_used = 0;
return 0;
}
#endif
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;
}
/* @}*/
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