OpenShot Audio Library | OpenShotAudio 0.3.2
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juce_AudioFormatManager.cpp
1/*
2 ==============================================================================
3
4 This file is part of the JUCE library.
5 Copyright (c) 2017 - ROLI Ltd.
6
7 JUCE is an open source library subject to commercial or open-source
8 licensing.
9
10 By using JUCE, you agree to the terms of both the JUCE 5 End-User License
11 Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
12 27th April 2017).
13
14 End User License Agreement: www.juce.com/juce-5-licence
15 Privacy Policy: www.juce.com/juce-5-privacy-policy
16
17 Or: You may also use this code under the terms of the GPL v3 (see
18 www.gnu.org/licenses).
19
20 JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
21 EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
22 DISCLAIMED.
23
24 ==============================================================================
25*/
26
27namespace juce
28{
29
32
33//==============================================================================
35{
36 jassert (newFormat != nullptr);
37
38 if (newFormat != nullptr)
39 {
40 #if JUCE_DEBUG
41 for (auto* af : knownFormats)
42 {
43 if (af->getFormatName() == newFormat->getFormatName())
44 jassertfalse; // trying to add the same format twice!
45 }
46 #endif
47
49 defaultFormatIndex = getNumKnownFormats();
50
51 knownFormats.add (newFormat);
52 }
53}
54
56{
57 registerFormat (new WavAudioFormat(), true);
58 registerFormat (new AiffAudioFormat(), false);
59
60 #if JUCE_USE_FLAC
61 registerFormat (new FlacAudioFormat(), false);
62 #endif
63
64 #if JUCE_USE_OGGVORBIS
66 #endif
67
68 #if JUCE_MAC || JUCE_IOS
69 registerFormat (new CoreAudioFormat(), false);
70 #endif
71
72 #if JUCE_USE_MP3AUDIOFORMAT
73 registerFormat (new MP3AudioFormat(), false);
74 #endif
75
76 #if JUCE_USE_WINDOWS_MEDIA_FORMAT
78 #endif
79}
80
82{
83 knownFormats.clear();
84 defaultFormatIndex = 0;
85}
86
87int AudioFormatManager::getNumKnownFormats() const { return knownFormats.size(); }
88AudioFormat* AudioFormatManager::getKnownFormat (int index) const { return knownFormats[index]; }
89AudioFormat* AudioFormatManager::getDefaultFormat() const { return getKnownFormat (defaultFormatIndex); }
90
92{
93 if (! fileExtension.startsWithChar ('.'))
95
96 for (auto* af : knownFormats)
97 if (af->getFileExtensions().contains (fileExtension, true))
98 return af;
99
100 return nullptr;
101}
102
104{
105 StringArray extensions;
106
107 for (auto* af : knownFormats)
108 extensions.addArray (af->getFileExtensions());
109
110 extensions.trim();
111 extensions.removeEmptyStrings();
112
113 for (auto& e : extensions)
114 e = (e.startsWithChar ('.') ? "*" : "*.") + e;
115
116 extensions.removeDuplicates (true);
117 return extensions.joinIntoString (";");
118}
119
120//==============================================================================
122{
123 // you need to actually register some formats before the manager can
124 // use them to open a file!
125 jassert (getNumKnownFormats() > 0);
126
127 for (auto* af : knownFormats)
128 if (af->canHandleFile (file))
129 if (auto* in = file.createInputStream())
130 if (auto* r = af->createReaderFor (in, true))
131 return r;
132
133 return nullptr;
134}
135
137{
138 // you need to actually register some formats before the manager can
139 // use them to open a file!
140 jassert (getNumKnownFormats() > 0);
141
142 if (audioFileStream != nullptr)
143 {
144 std::unique_ptr<InputStream> in (audioFileStream);
145 auto originalStreamPos = in->getPosition();
146
147 for (auto* af : knownFormats)
148 {
149 if (auto* r = af->createReaderFor (in.get(), false))
150 {
151 in.release();
152 return r;
153 }
154
155 in->setPosition (originalStreamPos);
156
157 // the stream that is passed-in must be capable of being repositioned so
158 // that all the formats can have a go at opening it.
159 jassert (in->getPosition() == originalStreamPos);
160 }
161 }
162
163 return nullptr;
164}
165
166} // namespace juce
int size() const noexcept
Definition juce_Array.h:215
void add(const ElementType &newElement)
Definition juce_Array.h:418
bool contains(ParameterType elementToLookFor) const
Definition juce_Array.h:400
void clear()
Definition juce_Array.h:188
AudioFormatReader * createReaderFor(const File &audioFile)
AudioFormat * getKnownFormat(int index) const
void registerFormat(AudioFormat *newFormat, bool makeThisTheDefaultFormat)
AudioFormat * getDefaultFormat() const
AudioFormat * findFormatForFileExtension(const String &fileExtension) const
FileInputStream * createInputStream() const
String joinIntoString(StringRef separatorString, int startIndex=0, int numberOfElements=-1) const
void removeEmptyStrings(bool removeWhitespaceStrings=true)
void addArray(const StringArray &other, int startIndex=0, int numElementsToAdd=-1)
void removeDuplicates(bool ignoreCase)