1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/*
* The contents of this file are subject to the Mozilla Public
* License Version 1.1 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS
* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is MPEG4IP.
*
* The Initial Developer of the Original Code is Cisco Systems Inc.
* Portions created by Cisco Systems Inc. are
* Copyright (C) Cisco Systems Inc. 2001-2002. All Rights Reserved.
*
* Contributor(s):
* Dave Mackie dmackie@cisco.com
*/
#ifndef __MP4AV_AUDIO_INCLUDED__
#define __MP4AV_AUDIO_INCLUDED__
// Audio Track Utitlites
#ifdef __cplusplus
extern "C" {
#endif
u_int8_t MP4AV_AudioGetChannels(
MP4FileHandle mp4File,
MP4TrackId audioTrackId);
u_int32_t MP4AV_AudioGetSamplingRate(
MP4FileHandle mp4File,
MP4TrackId audioTrackId);
u_int16_t MP4AV_AudioGetSamplingWindow(
MP4FileHandle mp4File,
MP4TrackId audioTrackId);
uint32_t convert_timescale(uint32_t timestamp,
uint32_t from_timescale,
uint32_t to_timescale);
#ifdef __cplusplus
}
#endif
#endif /* __MP4AV_AUDIO_INCLUDED__ */
|