this repo has no description
CoreAudio: Some initial code for AFAVFormatComponent
+384
+94
src/CoreAudio/AFAVFormatComponent/AVFormatFileObject.cpp
+94
src/CoreAudio/AFAVFormatComponent/AVFormatFileObject.cpp
···
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/*
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This file is part of Darling.
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Copyright (C) 2020 Lubos Dolezel
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Darling is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Darling is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Darling. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "AVFormatFileObject.h"
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#include <sstream>
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#include "AudioFileFormatMP3.h"
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extern "C" {
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#include <libavformat/avformat.h>
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}
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#pragma GCC visibility push(default)
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AUDIOCOMPONENT_ENTRY(AudioFileComponentFactory, AVFormatFileObject);
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#pragma GCC visibility pop
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AVFormatFileObject::AVFormatFileObject(AudioComponentInstance inInstance)
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: AudioFileObjectComponentBase(inInstance)
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{
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}
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// Analyze mAudioFileObject and return an AudioFileFormat based on that
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AudioFileFormat* AVFormatFileObject::GetAudioFormat() const
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{
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uint8_t buffer[1024 + AVPROBE_PADDING_SIZE];
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AVProbeData probeData;
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probeData.filename = "";
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probeData.buf = buffer;
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probeData.buf_size = 1024;
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if (mAudioFileObject->ReadBytes(false, 0, (UInt32*)&probeData.buf_size, probeData.buf) != noErr)
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return nullptr;
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AVInputFormat* fmt = av_probe_input_format(&probeData, true);
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if (!fmt)
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return nullptr;
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std::istringstream ss(fmt->name);
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std::string formatName;
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while (std::getline(ss, formatName, ','))
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{
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if (formatName == "aac") // Raw AAC
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{
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}
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else if (formatName == "ac3")
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{
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}
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else if (formatName == "aiff")
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{
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}
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else if (formatName == "caff")
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{
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}
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else if (formatName == "mp3")
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{
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return AudioFileFormatMP3::instance();
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}
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else if (formatName == "mov" || formatName == "mp4")
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{
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}
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else if (formatName == "au")
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{
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}
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else if (formatName == "wav")
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{
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}
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}
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return nullptr;
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}
+31
src/CoreAudio/AFAVFormatComponent/AVFormatFileObject.h
+31
src/CoreAudio/AFAVFormatComponent/AVFormatFileObject.h
···
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/*
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This file is part of Darling.
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Copyright (C) 2020 Lubos Dolezel
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+
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Darling is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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+
(at your option) any later version.
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+
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Darling is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Darling. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _AV_FORMAT_FILE_OBJECT_H
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#define _AV_FORMAT_FILE_OBJECT_H
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#include "AudioFileComponentBase.h"
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class AVFormatFileObject : public AudioFileObjectComponentBase
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{
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public:
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AVFormatFileObject(AudioComponentInstance inInstance);
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AudioFileFormat* GetAudioFormat() const override;
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};
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#endif
+118
src/CoreAudio/AFAVFormatComponent/AudioFileFormatGeneric.cpp
+118
src/CoreAudio/AFAVFormatComponent/AudioFileFormatGeneric.cpp
···
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/*
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This file is part of Darling.
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+
4
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Copyright (C) 2020 Lubos Dolezel
5
+
6
+
Darling 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 3 of the License, or
9
+
(at your option) any later version.
10
+
11
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Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
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+
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You should have received a copy of the GNU General Public License
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along with Darling. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "AudioFileFormatGeneric.h"
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#include <cstring>
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#include <CoreServices/MacErrors.h>
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extern "C" {
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#include <libavformat/avformat.h>
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}
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AudioFileFormatGeneric::AudioFileFormatGeneric(UInt32 inFileType, const char* avformatShortName)
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: AudioFileFormat(inFileType), m_avformatShortName(avformatShortName)
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{
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}
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Boolean AudioFileFormatGeneric::ExtensionIsThisFormat(CFStringRef inExtension)
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{
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const char* inStr = CFStringGetCStringPtr(inExtension, kCFStringEncodingUTF8);
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const Description& desc = description();
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for (const char* ext : desc.extensions)
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{
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if (::strcasecmp(ext, inStr) == 0)
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return true;
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}
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return false;
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}
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void AudioFileFormatGeneric::GetExtensions(CFArrayRef *outArray)
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{
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*outArray = toCFArray(description().extensions);
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}
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CFArrayRef AudioFileFormatGeneric::toCFArray(const std::vector<const char*>& array)
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{
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std::vector<CFStringRef> strings;
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strings.reserve(array.size());
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for (const char* str : array)
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strings.push_back(CFStringCreateWithCString(nullptr, str, kCFStringEncodingUTF8));
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CFArrayRef rv = CFArrayCreate(nullptr, (const void**) strings.data(), array.size(), &kCFTypeArrayCallBacks);
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for (CFStringRef str : strings)
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CFRelease(str);
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return rv;
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}
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void AudioFileFormatGeneric::GetUTIs(CFArrayRef *outArray)
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{
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*outArray = toCFArray(description().utis);
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}
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void AudioFileFormatGeneric::GetMIMETypes(CFArrayRef *outArray)
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{
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*outArray = toCFArray(description().mimeTypes);
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}
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void AudioFileFormatGeneric::GetFileTypeName(CFStringRef *outName)
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{
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*outName = CFStringCreateWithCString(nullptr, description().name, kCFStringEncodingUTF8);
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}
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UncertainResult AudioFileFormatGeneric::FileDataIsThisFormat(UInt32 inDataByteSize, const void* inData)
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{
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AVInputFormat* fmt = av_find_input_format(m_avformatShortName);
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if (!fmt)
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return false;
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std::vector<uint8_t> buf;
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AVProbeData probeData;
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buf.reserve(inDataByteSize + AVPROBE_PADDING_SIZE);
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buf.insert(buf.end(), static_cast<const uint8_t*>(inData), static_cast<const uint8_t*>(inData) + inDataByteSize);
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buf.resize(inDataByteSize + AVPROBE_PADDING_SIZE);
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probeData.filename = "";
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probeData.buf = buf.data();
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probeData.buf_size = inDataByteSize;
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return fmt->read_probe(&probeData) ? kTrue : kFalse;
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}
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AudioFileObject* AudioFileFormatGeneric::New()
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{
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// TODO
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return nullptr;
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}
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OSStatus AudioFileFormatGeneric::GetAvailableFormatIDs(UInt32* ioDataSize, void* outPropertyData)
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{
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// TODO
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return unimpErr;
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}
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OSStatus AudioFileFormatGeneric::GetAvailableStreamDescriptions(UInt32 inFormatID, UInt32* ioDataSize, void* outPropertyData)
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{
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// TODO
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return unimpErr;
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}
+55
src/CoreAudio/AFAVFormatComponent/AudioFileFormatGeneric.h
+55
src/CoreAudio/AFAVFormatComponent/AudioFileFormatGeneric.h
···
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/*
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This file is part of Darling.
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+
4
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Copyright (C) 2020 Lubos Dolezel
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+
6
+
Darling 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 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
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+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef _AUDIO_FILE_FORMAT_GENERIC_H
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#define _AUDIO_FILE_FORMAT_GENERIC_H
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#include "AudioFileFormat.h"
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class AudioFileFormatGeneric : public AudioFileFormat
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{
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public:
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AudioFileFormatGeneric(UInt32 inFileType, const char* avformatShortName);
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Boolean ExtensionIsThisFormat(CFStringRef inExtension) override;
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void GetExtensions(CFArrayRef *outArray) override;
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void GetUTIs(CFArrayRef *outArray) override;
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void GetMIMETypes(CFArrayRef *outArray) override;
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void GetFileTypeName(CFStringRef *outName) override;
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UncertainResult FileDataIsThisFormat(UInt32 inDataByteSize, const void* inData) override;
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AudioFileObject* New() override;
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AudioFileStreamObject* NewStream() override { return NULL; }
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OSStatus GetAvailableFormatIDs(UInt32* ioDataSize, void* outPropertyData) override;
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OSStatus GetAvailableStreamDescriptions(UInt32 inFormatID, UInt32* ioDataSize, void* outPropertyData) override;
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private:
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static CFArrayRef toCFArray(const std::vector<const char*>& array);
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protected:
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struct Description
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{
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const char* name;
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std::vector<const char*> extensions;
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std::vector<const char*> utis;
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std::vector<const char*> mimeTypes;
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};
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virtual const Description& description() const = 0;
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private:
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const char* m_avformatShortName;
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};
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#endif
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+42
src/CoreAudio/AFAVFormatComponent/AudioFileFormatMP3.cpp
+42
src/CoreAudio/AFAVFormatComponent/AudioFileFormatMP3.cpp
···
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/*
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+
This file is part of Darling.
3
+
4
+
Copyright (C) 2020 Lubos Dolezel
5
+
6
+
Darling 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 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
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+
*/
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#include "AudioFileFormatMP3.h"
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AudioFileFormatMP3::AudioFileFormatMP3()
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: AudioFileFormatGeneric('.mp3', "mp3")
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{
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}
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AudioFileFormatMP3* AudioFileFormatMP3::instance()
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{
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static AudioFileFormatMP3 inst;
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return &inst;
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}
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const AudioFileFormatMP3::Description& AudioFileFormatMP3::description() const
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{
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static const Description d = {
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.name = "MPEG Layer 3",
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.extensions = { "mp3" },
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.utis = { "public.mp3", "public.audio", "public.data" },
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.mimeTypes = { "audio/mpeg" },
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};
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return d;
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}
+35
src/CoreAudio/AFAVFormatComponent/AudioFileFormatMP3.h
+35
src/CoreAudio/AFAVFormatComponent/AudioFileFormatMP3.h
···
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/*
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This file is part of Darling.
3
+
4
+
Copyright (C) 2020 Lubos Dolezel
5
+
6
+
Darling 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 3 of the License, or
9
+
(at your option) any later version.
10
+
11
+
Darling is distributed in the hope that it will be useful,
12
+
but WITHOUT ANY WARRANTY; without even the implied warranty of
13
+
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14
+
GNU General Public License for more details.
15
+
16
+
You should have received a copy of the GNU General Public License
17
+
along with Darling. If not, see <http://www.gnu.org/licenses/>.
18
+
*/
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+
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#ifndef _AUDIO_FILE_FORMAT_MP3_H
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#define _AUDIO_FILE_FORMAT_MP3_H
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#include "AudioFileFormatGeneric.h"
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class AudioFileFormatMP3 : public AudioFileFormatGeneric
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{
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private:
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AudioFileFormatMP3();
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public:
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static AudioFileFormatMP3* instance();
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protected:
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const Description& description() const override;
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};
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#endif
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+3
src/CoreAudio/AFAVFormatComponent/CMakeLists.txt
+3
src/CoreAudio/AFAVFormatComponent/CMakeLists.txt
+6
src/CoreAudio/AFAVFormatComponent/README
+6
src/CoreAudio/AFAVFormatComponent/README
···
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This is a file format component built on top of AVFormat.
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The area of macOS surrounding AudioFileComponents is very badly documented, especially with regard to where this component belongs etc.
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This project may serve as an example: https://sourceforge.net/projects/coreaudio-flac/
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The goal is to support formats specified here: https://developer.apple.com/library/archive/documentation/MusicAudio/Conceptual/CoreAudioOverview/SupportedAudioFormatsMacOSX/SupportedAudioFormatsMacOSX.html