libavcodec/rtjpeg.h

   1 /*
   2  * RTJpeg decoding functions
   3  * copyright (c) 2006 Reimar Doeffinger
   4  *
   5  * This file is part of FFmpeg.
   6  *
   7  * FFmpeg is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * FFmpeg is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with FFmpeg; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20  */
  21
  22 #ifndef FFMPEG_RTJPEG_H
  23 #define FFMPEG_RTJPEG_H
  24
  25 #include <stdint.h>
  26 #include "dsputil.h"
  27
  28 typedef struct {
  29     int w, h;
  30     DSPContext *dsp;
  31     uint8_t scan[64];
  32     uint32_t lquant[64];
  33     uint32_t cquant[64];
  34 } RTJpegContext;
  35
  36 void rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,
  37                         int width, int height,
  38                         const uint32_t *lquant, const uint32_t *cquant);
  39
  40 int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
  41                                const uint8_t *buf, int buf_size);
  42 #endif /* FFMPEG_RTJPEG_H */