50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/*
|
|
* RTJpeg decoding functions
|
|
* copyright (c) 2006 Reimar Doeffinger
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef AVCODEC_RTJPEG_H
|
|
#define AVCODEC_RTJPEG_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "libavutil/mem.h"
|
|
#include "idctdsp.h"
|
|
|
|
#define RTJPEG_FILE_VERSION 0
|
|
#define RTJPEG_HEADER_SIZE 12
|
|
|
|
typedef struct RTJpegContext {
|
|
int w, h;
|
|
IDCTDSPContext idsp;
|
|
uint8_t scan[64];
|
|
uint32_t lquant[64];
|
|
uint32_t cquant[64];
|
|
DECLARE_ALIGNED(16, int16_t, block)[64];
|
|
} RTJpegContext;
|
|
|
|
void ff_rtjpeg_init(RTJpegContext *c, AVCodecContext *avctx);
|
|
|
|
void ff_rtjpeg_decode_init(RTJpegContext *c, int width, int height,
|
|
const uint32_t *lquant, const uint32_t *cquant);
|
|
|
|
int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f,
|
|
const uint8_t *buf, int buf_size);
|
|
#endif /* AVCODEC_RTJPEG_H */
|