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1/* Copyright: � Copyright 2005 Apple Computer, Inc. All rights reserved.
2
3 Disclaimer: IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc.
4 ("Apple") in consideration of your agreement to the following terms, and your
5 use, installation, modification or redistribution of this Apple software
6 constitutes acceptance of these terms. If you do not agree with these terms,
7 please do not use, install, modify or redistribute this Apple software.
8
9 In consideration of your agreement to abide by the following terms, and subject
10 to these terms, Apple grants you a personal, non-exclusive license, under Apple�s
11 copyrights in this original Apple software (the "Apple Software"), to use,
12 reproduce, modify and redistribute the Apple Software, with or without
13 modifications, in source and/or binary forms; provided that if you redistribute
14 the Apple Software in its entirety and without modifications, you must retain
15 this notice and the following text and disclaimers in all such redistributions of
16 the Apple Software. Neither the name, trademarks, service marks or logos of
17 Apple Computer, Inc. may be used to endorse or promote products derived from the
18 Apple Software without specific prior written permission from Apple. Except as
19 expressly stated in this notice, no other rights or licenses, express or implied,
20 are granted by Apple herein, including but not limited to any patent rights that
21 may be infringed by your derivative works or by other works in which the Apple
22 Software may be incorporated.
23
24 The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO
25 WARRANTIES, EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED
26 WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
27 PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS USE AND OPERATION ALONE OR IN
28 COMBINATION WITH YOUR PRODUCTS.
29
30 IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR
31 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
32 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
33 ARISING IN ANY WAY OUT OF THE USE, REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION
34 OF THE APPLE SOFTWARE, HOWEVER CAUSED AND WHETHER UNDER THEORY OF CONTRACT, TORT
35 (INCLUDING NEGLIGENCE), STRICT LIABILITY OR OTHERWISE, EVEN IF APPLE HAS BEEN
36 ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37*/
38/*=============================================================================
39 audioformats.cpp
40
41=============================================================================*/
42
43#include "CAAudioFileFormats.h"
44#include <stdlib.h>
45#include "AFToolsCommon.h"
46
47#if TARGET_OS_WIN32
48 #include <QTML.h>
49#endif
50
51// This program interrogates the AudioFile and AudioFormat API's for information
52// useful in constructing test scripts. It might also be useful as an example
53// of how to use these API's.
54
55void PrintFileFormats()
56{
57 CAAudioFileFormats *fileFormats = CAAudioFileFormats::Instance();
58
59 for (int i = 0; i < fileFormats->mNumFileFormats; ++i) {
60 CAAudioFileFormats::FileFormatInfo *ffi = &fileFormats->mFileFormats[i];
61 char buf[20], extbuf[32];
62 printf("('%s', '%s'", OSTypeToStr(buf, ffi->mFileTypeID), ffi->GetExtension(0, extbuf, sizeof(extbuf)));
63
64 for (int j = 0; j < ffi->mNumDataFormats; ++j) {
65 CAAudioFileFormats::DataFormatInfo *dfi = &ffi->mDataFormats[j];
66 if (dfi->mFormatID == kAudioFormatLinearPCM) {
67 for (int k = 0; k < dfi->mNumVariants; ++k) {
68 AudioStreamBasicDescription *asbd = &dfi->mVariants[k];
69 if (asbd->mFormatFlags & ~(kAudioFormatFlagIsPacked | kAudioFormatFlagIsSignedInteger | kAudioFormatFlagIsBigEndian | kAudioFormatFlagIsFloat))
70 printf("(%08lx/%ld) ", asbd->mFormatFlags, asbd->mBitsPerChannel);
71 else {
72 printf(", '%s",
73 (asbd->mFormatFlags & kAudioFormatFlagIsBigEndian) ? "BE" : "LE");
74 if (asbd->mFormatFlags & kAudioFormatFlagIsFloat)
75 printf("F");
76 else
77 printf("%sI",
78 (asbd->mFormatFlags & kAudioFormatFlagIsSignedInteger) ? "" : "U");
79 printf("%ld'", asbd->mBitsPerChannel);
80 }
81 }
82 } else {
83 printf(", '%s'", OSTypeToStr(buf, dfi->mFormatID));
84 }
85 }
86 printf("),\n");
87 }
88}
89
90struct LayoutTag {
91 UInt32 constant;
92 const char *name;
93};
94
95#define TAG(x) { x, #x },
96
97static LayoutTag gLayoutTags[] = {
98 TAG(kAudioChannelLayoutTag_Stereo)
99 TAG(kAudioChannelLayoutTag_AAC_Quadraphonic)
100 TAG(kAudioChannelLayoutTag_AAC_4_0)
101 TAG(kAudioChannelLayoutTag_AAC_5_0)
102 TAG(kAudioChannelLayoutTag_AAC_5_1)
103 TAG(kAudioChannelLayoutTag_AAC_6_0)
104 TAG(kAudioChannelLayoutTag_AAC_6_1)
105 TAG(kAudioChannelLayoutTag_AAC_7_0)
106 TAG(kAudioChannelLayoutTag_AAC_7_1)
107 TAG(kAudioChannelLayoutTag_AAC_Octagonal)
108 TAG(kAudioChannelLayoutTag_MPEG_5_0_A)
109 TAG(kAudioChannelLayoutTag_MPEG_5_0_B)
110 TAG(kAudioChannelLayoutTag_MPEG_5_1_A)
111 TAG(kAudioChannelLayoutTag_MPEG_5_1_B)
112 { 0, NULL } // sentinel
113};
114
115static const char *prefix = "kAudioChannelLayoutTag_";
116
117void PrintCompatibleChannelLayouts()
118{
119 int plen = strlen(prefix);
120 for (LayoutTag *tag1 = gLayoutTags; tag1->name != NULL; ++tag1) {
121 AudioChannelLayout layout1 = { tag1->constant, 0, 0 };
122 printf("\t'%s' : (", tag1->name + plen);
123 int printed = 0;
124 for (LayoutTag *tag2 = gLayoutTags; tag2->name != NULL; ++tag2) {
125 AudioChannelLayout layout2 = { tag2->constant, 0, 0 };
126 AudioChannelLayout *layouts[] = { &layout1, &layout2 };
127
128 UInt32 propertySize;
129 OSStatus err = AudioFormatGetPropertyInfo(kAudioFormatProperty_ChannelMap, sizeof(layouts), layouts, &propertySize);
130 if (err == noErr) {
131 SInt32 *map = (SInt32 *)malloc(propertySize);
132 err = AudioFormatGetProperty(kAudioFormatProperty_ChannelMap, sizeof(layouts), layouts, &propertySize, map);
133 if (err == noErr) {
134 if (printed++) printf(", ");
135 printf("'%s'", tag2->name + plen);
136 }
137 }
138 }
139 printf("),\n");
140 }
141}
142
143int main(int argc, const char *argv[])
144{
145 #if TARGET_OS_WIN32
146 InitializeQTML(0L);
147 #endif
148
149 PrintFileFormats();
150 printf("#######################\n");
151 PrintCompatibleChannelLayouts();
152
153 return 0;
154}