FFmpeg: libavcodec/rtjpeg.h Source File

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 typedef struct {
00029     int w, h;
00030     DSPContext *dsp;
00031     uint8_t scan[64];
00032     uint32_t lquant[64];
00033     uint32_t cquant[64];
00034     DECLARE_ALIGNED(16, DCTELEM, block)[64];
00035 } RTJpegContext;
00036 
00037 void ff_rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp,
00038                         int width, int height,
00039                         const uint32_t *lquant, const uint32_t *cquant);
00040 
00041 int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
00042                                const uint8_t *buf, int buf_size);
00043 #endif /* AVCODEC_RTJPEG_H */