1 /*
2 * DNxHD/VC-3 parser
3 * Copyright (c) 2008 Baptiste Coudurier <baptiste.coudurier@free.fr>
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 * DNxHD/VC-3 parser
25 */
26
29
36
38 const uint8_t *buf, int buf_size)
39 {
44
45 if (!pic_found) {
46 for (
i = 0;
i < buf_size;
i++) {
50 pic_found = 1;
53 break;
54 }
55 }
56 }
57
59 if (!buf_size) /* EOF considered as end of frame */
60 return 0;
61 for (;
i < buf_size;
i++) {
64
66 dctx->
h = (
state >> 32) & 0xFFFF;
68 dctx->
w = (
state >> 32) & 0xFFFF;
70 int cid = (
state >> 32) & 0xFFFFFFFF;
71 int remaining;
72
74 continue;
75
77 if (remaining <= 0) {
79 if (remaining <= 0)
80 continue;
81 }
89 return remaining;
90 } else {
92 // Update variables for correctness, they are currently not used beyond here
95 break;
96 }
97 }
98 }
99 } else if (pic_found) {
102 } else {
104
109 return remaining;
110 }
111 }
115 }
116
119 const uint8_t **poutbuf, int *poutbuf_size,
120 const uint8_t *buf, int buf_size)
121 {
124 int next;
125
127 next = buf_size;
128 } else {
132 *poutbuf_size = 0;
133 return buf_size;
134 }
135 }
136 *poutbuf = buf;
137 *poutbuf_size = buf_size;
138 return next;
139 }
140
146 };