2 * Video Decode and Presentation API for UNIX (VDPAU) is used for
3 * HW decode acceleration for MPEG-1/2, MPEG-4 ASP, H.264 and VC-1.
5 * Copyright (c) 2008 NVIDIA
7 * This file is part of Libav.
9 * Libav is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU Lesser General Public
11 * License as published by the Free Software Foundation; either
12 * version 2.1 of the License, or (at your option) any later version.
14 * Libav is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with Libav; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
33 #include "vdpau_internal.h"
36 * @addtogroup VDPAU_Decoding
41 int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic_ctx,
42 av_unused const uint8_t *buffer,
43 av_unused uint32_t size)
45 pic_ctx->bitstream_buffers_allocated = 0;
46 pic_ctx->bitstream_buffers_used = 0;
47 pic_ctx->bitstream_buffers = NULL;
51 #if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
52 CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
53 CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
54 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
56 AVVDPAUContext *hwctx = avctx->hwaccel_context;
57 MpegEncContext *s = avctx->priv_data;
58 Picture *pic = s->current_picture_ptr;
59 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
60 VdpVideoSurface surf = ff_vdpau_get_surface_id(&pic->f);
62 hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
63 pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
65 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
66 av_freep(&pic_ctx->bitstream_buffers);
72 int ff_vdpau_add_buffer(struct vdpau_picture_context *pic_ctx,
73 const uint8_t *buf, uint32_t size)
75 VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
77 buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
78 (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
80 return AVERROR(ENOMEM);
82 pic_ctx->bitstream_buffers = buffers;
83 buffers += pic_ctx->bitstream_buffers_used++;
85 buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
86 buffers->bitstream = buf;
87 buffers->bitstream_bytes = size;
91 int av_vdpau_get_profile(AVCodecContext *avctx, VdpDecoderProfile *profile)
93 #define PROFILE(prof) \
99 switch (avctx->codec_id) {
100 case AV_CODEC_ID_MPEG1VIDEO: PROFILE(VDP_DECODER_PROFILE_MPEG1);
101 case AV_CODEC_ID_MPEG2VIDEO:
102 switch (avctx->profile) {
103 case FF_PROFILE_MPEG2_MAIN: PROFILE(VDP_DECODER_PROFILE_MPEG2_MAIN);
104 case FF_PROFILE_MPEG2_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG2_SIMPLE);
105 default: return AVERROR(EINVAL);
107 case AV_CODEC_ID_H263: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
108 case AV_CODEC_ID_MPEG4:
109 switch (avctx->profile) {
110 case FF_PROFILE_MPEG4_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_SP);
111 case FF_PROFILE_MPEG4_ADVANCED_SIMPLE: PROFILE(VDP_DECODER_PROFILE_MPEG4_PART2_ASP);
112 default: return AVERROR(EINVAL);
114 case AV_CODEC_ID_H264:
115 switch (avctx->profile & ~FF_PROFILE_H264_INTRA) {
116 case FF_PROFILE_H264_CONSTRAINED_BASELINE:
117 case FF_PROFILE_H264_BASELINE: PROFILE(VDP_DECODER_PROFILE_H264_BASELINE);
118 case FF_PROFILE_H264_MAIN: PROFILE(VDP_DECODER_PROFILE_H264_MAIN);
119 case FF_PROFILE_H264_HIGH: PROFILE(VDP_DECODER_PROFILE_H264_HIGH);
120 default: return AVERROR(EINVAL);
122 case AV_CODEC_ID_WMV3:
123 case AV_CODEC_ID_VC1:
124 switch (avctx->profile) {
125 case FF_PROFILE_VC1_SIMPLE: PROFILE(VDP_DECODER_PROFILE_VC1_SIMPLE);
126 case FF_PROFILE_VC1_MAIN: PROFILE(VDP_DECODER_PROFILE_VC1_MAIN);
127 case FF_PROFILE_VC1_ADVANCED: PROFILE(VDP_DECODER_PROFILE_VC1_ADVANCED);
128 default: return AVERROR(EINVAL);
131 return AVERROR(EINVAL);
134 AVVDPAUContext *av_vdpau_alloc_context(void)
136 return av_mallocz(sizeof(AVVDPAUContext));