ffmpeg/libavcodec/vdpau_internal.h

   1 /*
   2  * Video Decode and Presentation API for UNIX (VDPAU) is used for
   3  * HW decode acceleration for MPEG-1/2, H.264 and VC-1.
   4  *
   5  * Copyright (C) 2008 NVIDIA
   6  *
   7  * This file is part of FFmpeg.
   8  *
   9  * FFmpeg 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.
  13  *
  14  * FFmpeg 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.
  18  *
  19  * You should have received a copy of the GNU Lesser General Public
  20  * License along with FFmpeg; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  22  */
  23
  24 #ifndef AVCODEC_VDPAU_INTERNAL_H
  25 #define AVCODEC_VDPAU_INTERNAL_H
  26
  27 #include "config.h"
  28 #include <stdint.h>
  29 #if CONFIG_VDPAU
  30 #include <vdpau/vdpau.h>
  31 #endif
  32 #include "h264.h"
  33
  34 #include "avcodec.h"
  35 #include "mpeg4video.h"
  36 #include "mpegvideo.h"
  37 #include "version.h"
  38
  39 /** Extract VdpVideoSurface from an AVFrame */
  40 static inline uintptr_t ff_vdpau_get_surface_id(AVFrame *pic)
  41 {
  42     return (uintptr_t)pic->data[3];
  43 }
  44
  45 struct vdpau_picture_context;
  46 #if CONFIG_VDPAU
  47 #if !FF_API_BUFS_VDPAU
  48 union AVVDPAUPictureInfo {
  49     VdpPictureInfoH264        h264;
  50     VdpPictureInfoMPEG1Or2    mpeg;
  51     VdpPictureInfoVC1          vc1;
  52     VdpPictureInfoMPEG4Part2 mpeg4;
  53 };
  54 #else
  55 #include "vdpau.h"
  56 #endif
  57
  58 struct vdpau_picture_context {
  59     /**
  60      * VDPAU picture information.
  61      */
  62     union AVVDPAUPictureInfo info;
  63
  64     /**
  65      * Allocated size of the bitstream_buffers table.
  66      */
  67     int bitstream_buffers_allocated;
  68
  69     /**
  70      * Useful bitstream buffers in the bitstream buffers table.
  71      */
  72     int bitstream_buffers_used;
  73
  74    /**
  75      * Table of bitstream buffers.
  76      */
  77     VdpBitstreamBuffer *bitstream_buffers;
  78 };
  79 #endif
  80
  81 int ff_vdpau_common_start_frame(struct vdpau_picture_context *pic,
  82                                 const uint8_t *buffer, uint32_t size);
  83 int ff_vdpau_mpeg_end_frame(AVCodecContext *avctx);
  84 int ff_vdpau_add_buffer(struct vdpau_picture_context *pic, const uint8_t *buf,
  85                         uint32_t buf_size);
  86
  87
  88 void ff_vdpau_add_data_chunk(uint8_t *data, const uint8_t *buf,
  89                              int buf_size);
  90
  91 void ff_vdpau_mpeg_picture_complete(MpegEncContext *s, const uint8_t *buf,
  92                                     int buf_size, int slice_count);
  93
  94 void ff_vdpau_h264_picture_start(H264Context *h);
  95 void ff_vdpau_h264_set_reference_frames(H264Context *h);
  96 void ff_vdpau_h264_picture_complete(H264Context *h);
  97
  98 void ff_vdpau_vc1_decode_picture(MpegEncContext *s, const uint8_t *buf,
  99                                  int buf_size);
 100
 101 void ff_vdpau_mpeg4_decode_picture(Mpeg4DecContext *s, const uint8_t *buf,
 102                                    int buf_size);
 103
 104 #endif /* AVCODEC_VDPAU_INTERNAL_H */