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(Picture *pic,
42 av_unused const uint8_t *buffer,
43 av_unused uint32_t size)
45 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
47 pic_ctx->bitstream_buffers_allocated = 0;
48 pic_ctx->bitstream_buffers_used = 0;
49 pic_ctx->bitstream_buffers = NULL;
53 #if CONFIG_H263_VDPAU_HWACCEL || CONFIG_MPEG1_VDPAU_HWACCEL || \
54 CONFIG_MPEG2_VDPAU_HWACCEL || CONFIG_MPEG4_VDPAU_HWACCEL || \
55 CONFIG_VC1_VDPAU_HWACCEL || CONFIG_WMV3_VDPAU_HWACCEL
56 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx)
58 AVVDPAUContext *hwctx = avctx->hwaccel_context;
59 MpegEncContext *s = avctx->priv_data;
60 Picture *pic = s->current_picture_ptr;
61 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
62 VdpVideoSurface surf = ff_vdpau_get_surface_id(pic);
64 hwctx->render(hwctx->decoder, surf, (void *)&pic_ctx->info,
65 pic_ctx->bitstream_buffers_used, pic_ctx->bitstream_buffers);
67 ff_mpeg_draw_horiz_band(s, 0, s->avctx->height);
68 av_freep(&pic_ctx->bitstream_buffers);
74 int ff_vdpau_add_buffer(Picture *pic, const uint8_t *buf, uint32_t size)
76 struct vdpau_picture_context *pic_ctx = pic->hwaccel_picture_private;
77 VdpBitstreamBuffer *buffers = pic_ctx->bitstream_buffers;
79 buffers = av_fast_realloc(buffers, &pic_ctx->bitstream_buffers_allocated,
80 (pic_ctx->bitstream_buffers_used + 1) * sizeof(*buffers));
82 return AVERROR(ENOMEM);
84 pic_ctx->bitstream_buffers = buffers;
85 buffers += pic_ctx->bitstream_buffers_used++;
87 buffers->struct_version = VDP_BITSTREAM_BUFFER_VERSION;
88 buffers->bitstream = buf;
89 buffers->bitstream_bytes = size;