1 /*
2 * H.263 parser
3 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
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 * H.263 parser
25 */
26
28 #if FF_API_FLAG_TRUNCATED
29 /* Nuke this header when removing FF_API_FLAG_TRUNCATED */
31
33 #else
34
35 static int h263_find_frame_end(
ParseContext *pc,
const uint8_t *buf,
int buf_size)
36 {
37 #endif
40
43
45 if(!vop_found){
46 for(
i=0;
i<buf_size;
i++){
48 if(
state>>(32-22) == 0x20){
50 vop_found=1;
51 break;
52 }
53 }
54 }
55
56 if(vop_found){
57 for(;
i<buf_size;
i++){
59 if(
state>>(32-22) == 0x20){
63 }
64 }
65 }
68
70 }
71
74 const uint8_t **poutbuf, int *poutbuf_size,
75 const uint8_t *buf, int buf_size)
76 {
78 int next;
79
81 next = buf_size;
82 } else {
83 #if FF_API_FLAG_TRUNCATED
85 #else
86 next = h263_find_frame_end(pc, buf, buf_size);
87 #endif
88
91 *poutbuf_size = 0;
92 return buf_size;
93 }
94 }
95
96 *poutbuf = buf;
97 *poutbuf_size = buf_size;
98 return next;
99 }
100
106 };