blob: d22ff4070e2f24001b0e27586d2fef1505e45b9d
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 */ |
50 |