root/trunk/freebob/src/avaudioinfoblock.cpp

Revision 24, 1.9 kB (checked in by pieterpalmers, 19 years ago)

- bugfix: descriptor was not read correctly in AvDescriptor?
- several other small bugfixes/cleanups
- fix compiler warnings
- added some extra debug statements to follow parser flow

  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
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1 /* avaudioinfoblock.cpp
2  * Copyright (C) 2004 by Pieter Palmers
3  *
4  * This file is part of FreeBob.
5  *
6  * FreeBob is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License as published by
8  * the Free Software Foundation; either version 2 of the License, or
9  * (at your option) any later version.
10  * FreeBob is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with FreeBob; if not, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
18  * MA 02111-1307 USA.
19  */
20
21
22 #include <string.h>
23 #include <errno.h>
24 #include <libavc1394/avc1394.h>
25 #include <libavc1394/avc1394_vcr.h>
26 #include "debugmodule.h"
27
28 #include "avdescriptor.h"
29 #include "avinfoblock.h"
30 #include "avnameinfoblock.h"
31 #include "avaudioinfoblock.h"
32
33 AvAudioInfoBlock::AvAudioInfoBlock(AvDescriptor *parent, int address) : AvInfoBlock(parent,address) {
34         // do some more valid checks
35         if (getType() != 0x8103) {
36                 bValid=false;
37         }       
38         debugPrint(DEBUG_LEVEL_INFO,"AvAudioInfoBlock: Creating... length=0x%04X\n",getLength());
39        
40         // PP: I assume that there is only an audio block, no optional blocks.
41         cNameInfoBlock=new AvNameInfoBlock(parent, address+7);
42         debugPrint(DEBUG_LEVEL_INFO,"AvAudioInfoBlock: Created\n");
43        
44 }
45
46 AvAudioInfoBlock::~AvAudioInfoBlock() {
47
48         if(cNameInfoBlock) {
49                 delete cNameInfoBlock;
50         }
51 }
52
53 unsigned int AvAudioInfoBlock::getNbStreams() {
54         if(isValid()) {
55                 return readByte(6);
56         } else {
57                 return 0;
58         }
59 }
60
61 unsigned char *AvAudioInfoBlock::getName() {
62         if (cNameInfoBlock && cNameInfoBlock->isValid()) {
63                 unsigned char * name=cNameInfoBlock->getName();
64                 return name;
65         }
66         return NULL;
67 }
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