1 /*
2 * Chinese AVS video (AVS1-P2, JiZhun profile) parser.
3 * Copyright (c) 2006 Stefan Gehrer <stefan.gehrer@gmx.de>
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 * Chinese AVS video (AVS1-P2, JiZhun profile) parser
25 * @author Stefan Gehrer <stefan.gehrer@gmx.de>
26 */
27
30
31
32 /**
33 * Find the end of the current frame in the bitstream.
34 * @return the position of the first byte of the next frame, or -1
35 */
37 int buf_size) {
40
43
45 if(!pic_found){
46 for(
i=0;
i<buf_size;
i++){
50 pic_found=1;
51 break;
52 }
53 }
54 }
55
56 if(pic_found){
57 /* EOF considered as end of frame */
58 if (buf_size == 0)
59 return 0;
60 for(;
i<buf_size;
i++){
62 if((
state&0xFFFFFF00) == 0x100){
67 }
68 }
69 }
70 }
74 }
75
78 const uint8_t **poutbuf, int *poutbuf_size,
79 const uint8_t *buf, int buf_size)
80 {
82 int next;
83
85 next= buf_size;
86 }else{
88
91 *poutbuf_size = 0;
92 return buf_size;
93 }
94 }
95 *poutbuf = buf;
96 *poutbuf_size = buf_size;
97 return next;
98 }
99
105 };