00001 /* 00002 * RTJpeg decoding functions 00003 * copyright (c) 2006 Reimar Doeffinger 00004 * 00005 * This file is part of FFmpeg. 00006 * 00007 * FFmpeg is free software; you can redistribute it and/or 00008 * modify it under the terms of the GNU Lesser General Public 00009 * License as published by the Free Software Foundation; either 00010 * version 2.1 of the License, or (at your option) any later version. 00011 * 00012 * FFmpeg is distributed in the hope that it will be useful, 00013 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00014 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00015 * Lesser General Public License for more details. 00016 * 00017 * You should have received a copy of the GNU Lesser General Public 00018 * License along with FFmpeg; if not, write to the Free Software 00019 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 00020 */ 00021 00022 #ifndef AVCODEC_RTJPEG_H 00023 #define AVCODEC_RTJPEG_H 00024 00025 #include <stdint.h> 00026 #include "dsputil.h" 00027 00028 #define RTJPEG_FILE_VERSION 0 00029 #define RTJPEG_HEADER_SIZE 12 00030 00031 typedef struct { 00032 int w, h; 00033 DSPContext *dsp; 00034 uint8_t scan[64]; 00035 uint32_t lquant[64]; 00036 uint32_t cquant[64]; 00037 DECLARE_ALIGNED(16, DCTELEM, block)[64]; 00038 } RTJpegContext; 00039 00040 void rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp, 00041 int width, int height, 00042 const uint32_t *lquant, const uint32_t *cquant); 00043 00044 int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f, 00045 const uint8_t *buf, int buf_size); 00046 #endif /* AVCODEC_RTJPEG_H */
1.5.8