mirror of
https://github.com/FFmpeg/FFmpeg.git
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94 lines
2.9 KiB
C
94 lines
2.9 KiB
C
/*
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* Video Decode and Presentation API for UNIX (VDPAU) is used for
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* HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
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*
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* Copyright (c) 2008 NVIDIA
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <limits.h>
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#include "avcodec.h"
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#include "h264.h"
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#include "vc1.h"
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#undef NDEBUG
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#include <assert.h>
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#include "vdpau.h"
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#include "vdpau_internal.h"
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/**
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* @addtogroup VDPAU_Decoding
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*
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* @{
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*/
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int ff_vdpau_common_start_frame(Picture *pic,
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av_unused const uint8_t *buffer,
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av_unused uint32_t size)
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{
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struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
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pic_ctx->bitstream_buffers_allocated = 0;
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pic_ctx->bitstream_buffers_used = 0;
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pic_ctx->bitstream_buffers = NULL;
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return 0;
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}
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#if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
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CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
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CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
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int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
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{
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AVVDPAUContext *hwctx = avctx->hwaccel_context;
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MpegEncContext *s = avctx->priv_data;
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Picture *pic = s->current_picture_ptr;
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struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
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VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
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hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
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pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
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ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
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av_freep(&pic_ctx->bitstream_buffers);
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return 0;
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}
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#endif
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int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
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{
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struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
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VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
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buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
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(pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
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if (!buffers)
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return AVERROR(ENOMEM);
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pic_ctx->bitstream_buffers = buffers;
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buffers += pic_ctx->bitstream_buffers_used++;
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buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
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buffers->bitstream = buf;
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buffers->bitstream_bytes = size;
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return 0;
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}
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/* @}*/
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