/src/ffmpeg/libavcodec/mjpegenc_huffman.h
Line | Count | Source |
1 | | /* |
2 | | * MJPEG encoder |
3 | | * Copyright (c) 2016 William Ma, Ted Ying, Jerry Jiang |
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 | | /** |
23 | | * @file |
24 | | * Huffman table generation for MJPEG encoder. |
25 | | */ |
26 | | |
27 | | #ifndef AVCODEC_MJPEGENC_HUFFMAN_H |
28 | | #define AVCODEC_MJPEGENC_HUFFMAN_H |
29 | | |
30 | | #include <stdint.h> |
31 | | |
32 | | typedef struct MJpegEncHuffmanContext { |
33 | | int val_count[256]; |
34 | | } MJpegEncHuffmanContext; |
35 | | |
36 | | // Uses the package merge algorithm to compute the Huffman table. |
37 | | void ff_mjpeg_encode_huffman_init(MJpegEncHuffmanContext *s); |
38 | | static inline void ff_mjpeg_encode_huffman_increment(MJpegEncHuffmanContext *s, |
39 | | uint8_t val) |
40 | 29.5M | { |
41 | 29.5M | s->val_count[val]++; |
42 | 29.5M | } mjpegenc.c:ff_mjpeg_encode_huffman_increment Line | Count | Source | 40 | 29.5M | { | 41 | 29.5M | s->val_count[val]++; | 42 | 29.5M | } |
Unexecuted instantiation: mjpegenc_huffman.c:ff_mjpeg_encode_huffman_increment |
43 | | void ff_mjpeg_encode_huffman_close(MJpegEncHuffmanContext *s, |
44 | | uint8_t bits[17], uint8_t val[], |
45 | | int max_nval); |
46 | | |
47 | | #endif /* AVCODEC_MJPEGENC_HUFFMAN_H */ |