rtjpeg.h
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1 /*
2  * RTJpeg decoding functions
3  * copyright (c) 2006 Reimar Doeffinger
4  *
5  * This file is part of Libav.
6  *
7  * Libav 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  * Libav 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 Libav; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #ifndef AVCODEC_RTJPEG_H
23 #define AVCODEC_RTJPEG_H
24 
25 #include <stdint.h>
26 #include "dsputil.h"
27 
28 #define RTJPEG_FILE_VERSION 0
29 #define RTJPEG_HEADER_SIZE 12
30 
31 typedef struct {
32  int w, h;
34  uint8_t scan[64];
35  uint32_t lquant[64];
36  uint32_t cquant[64];
39 
41  int width, int height,
42  const uint32_t *lquant, const uint32_t *cquant);
43 
45  const uint8_t *buf, int buf_size);
46 #endif /* AVCODEC_RTJPEG_H */
Audio Video Frame.
Definition: avcodec.h:985
DSPContext * dsp
Definition: rtjpeg.h:33
int width
Definition: rotozoom.c:164
#define DECLARE_ALIGNED(n, t, v)
Definition: mem.h:55
int rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f, const uint8_t *buf, int buf_size)
decode one rtjpeg YUV420 frame
Definition: rtjpeg.c:107
static DSPContext dsp
Definition: atrac3.c:135
static DCTELEM block[64]
Definition: dct-test.c:189
#define f(n)
Definition: regs.h:33
short DCTELEM
Definition: dsputil.h:39
int height
Definition: gxfenc.c:73
DSP utils.
void rtjpeg_decode_init(RTJpegContext *c, DSPContext *dsp, int width, int height, const uint32_t *lquant, const uint32_t *cquant)
initialize an RTJpegContext, may be called multiple times
Definition: rtjpeg.c:157
DSPContext.
Definition: dsputil.h:226