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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 AVCODEC_RTJPEG_H | |
23 | #define AVCODEC_RTJPEG_H | |
24 | ||
25 | #include <stdint.h> | |
26 | ||
27 | #include "libavutil/mem.h" | |
28 | #include "idctdsp.h" | |
29 | ||
30 | #define RTJPEG_FILE_VERSION 0 | |
31 | #define RTJPEG_HEADER_SIZE 12 | |
32 | ||
33 | typedef struct RTJpegContext { | |
34 | int w, h; | |
35 | IDCTDSPContext idsp; | |
36 | uint8_t scan[64]; | |
37 | uint32_t lquant[64]; | |
38 | uint32_t cquant[64]; | |
39 | DECLARE_ALIGNED(16, int16_t, block)[64]; | |
40 | } RTJpegContext; | |
41 | ||
42 | void ff_rtjpeg_init(RTJpegContext *c, AVCodecContext *avctx); | |
43 | ||
44 | void ff_rtjpeg_decode_init(RTJpegContext *c, int width, int height, | |
45 | const uint32_t *lquant, const uint32_t *cquant); | |
46 | ||
47 | int ff_rtjpeg_decode_frame_yuv420(RTJpegContext *c, AVFrame *f, | |
48 | const uint8_t *buf, int buf_size); | |
49 | #endif /* AVCODEC_RTJPEG_H */ |