FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/xma_parser.c
Date: 2024-10-04 17:46:48
Exec Total Coverage
Lines: 0 14 0.0%
Functions: 0 1 0.0%
Branches: 0 6 0.0%

Line Branch Exec Source
1 /*
2 * This file is part of FFmpeg.
3 *
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17 */
18
19 /**
20 * @file
21 * XMA2 audio parser
22 */
23
24 #include "parser.h"
25
26 typedef struct XMAParserContext{
27 int skip_packets;
28 } XMAParserContext;
29
30 static int xma_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
31 const uint8_t **poutbuf, int *poutbuf_size,
32 const uint8_t *buf, int buf_size)
33 {
34 XMAParserContext *s = s1->priv_data;
35
36 if (buf_size % 2048 == 0) {
37 int duration = 0, packet, nb_packets = buf_size / 2048;
38
39 for (packet = 0; packet < nb_packets; packet++) {
40 if (s->skip_packets == 0) {
41 duration += buf[packet * 2048] * 128;
42 s->skip_packets = buf[packet * 2048 + 3] + 1;
43 }
44 s->skip_packets--;
45 }
46
47 s1->duration = duration;
48 s1->key_frame = !!duration;
49 }
50
51 /* always return the full packet. this parser isn't doing any splitting or
52 combining, only packet analysis */
53 *poutbuf = buf;
54 *poutbuf_size = buf_size;
55 return buf_size;
56 }
57
58 const AVCodecParser ff_xma_parser = {
59 .codec_ids = { AV_CODEC_ID_XMA2 },
60 .priv_data_size = sizeof(XMAParserContext),
61 .parser_parse = xma_parse,
62 };
63