1 /*
2 * Copyright (c) 2011 Justin Ruggles
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 /**
22 * @file
23 * ADX audio parser
24 *
25 * Splits packets into individual blocks.
26 */
27
31
38
41 const uint8_t **poutbuf, int *poutbuf_size,
42 const uint8_t *buf, int buf_size)
43 {
49
50 if (!
s->header_size) {
51 for (
i = 0;
i < buf_size;
i++) {
53 /* check for fixed fields in ADX header for possible match */
54 if ((
state & 0xFFFF0000FFFFFF00) == 0x8000000003120400ULL) {
56 int header_size = ((
state >> 32) & 0xFFFF) + 4;
57 if (
channels > 0 && header_size >= 8) {
58 s->header_size = header_size;
60 s->remaining =
i - 7 +
s->header_size +
s->block_size;
61 break;
62 }
63 }
64 }
66 }
67
70 s->remaining =
s->block_size;
71 if (
s->remaining <= buf_size) {
74 } else
75 s->remaining -= buf_size;
80 s->remaining =
s->block_size;
81 if (
s->remaining <= buf_size) {
84 } else
85 s->remaining -= buf_size;
86 }
87
90 *poutbuf_size = 0;
91 return buf_size;
92 }
93
95
96 *poutbuf = buf;
97 *poutbuf_size = buf_size;
98 return next;
99 }
100
106 };