Cider Isn't Darwin Emulation, Really
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139/*This file is part of Darling.
Copyright (C) 2020 Lubos Dolezel
Darling is free software: you can redistribute it and/or modifyit under the terms of the GNU General Public License as published bythe Free Software Foundation, either version 3 of the License, or(at your option) any later version.
Darling is distributed in the hope that it will be useful,but WITHOUT ANY WARRANTY; without even the implied warranty ofMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See theGNU General Public License for more details.
You should have received a copy of the GNU General Public Licensealong with Darling. If not, see <http://www.gnu.org/licenses/>.*/#include "AudioFileFormatGeneric.h"#include <cstring>#include <CarbonCore/MacErrors.h>
extern "C" {#include <libavformat/avformat.h>}
AudioFileFormatGeneric::AudioFileFormatGeneric(UInt32 inFileType, const char* avformatShortName): AudioFileFormat(inFileType), m_avformatShortName(avformatShortName){}
Boolean AudioFileFormatGeneric::ExtensionIsThisFormat(CFStringRef inExtension){ const char* inStr = CFStringGetCStringPtr(inExtension, kCFStringEncodingUTF8); const Description& desc = description();
for (const char* ext : desc.extensions) { if (::strcasecmp(ext, inStr) == 0) return true; }
return false;}
void AudioFileFormatGeneric::GetExtensions(CFArrayRef *outArray){ *outArray = toCFArray(description().extensions);}
CFArrayRef AudioFileFormatGeneric::toCFArray(const std::vector<const char*>& array){ std::vector<CFStringRef> strings; strings.reserve(array.size());
for (const char* str : array) strings.push_back(CFStringCreateWithCString(nullptr, str, kCFStringEncodingUTF8));
CFArrayRef rv = CFArrayCreate(nullptr, (const void**) strings.data(), array.size(), &kCFTypeArrayCallBacks);
for (CFStringRef str : strings) CFRelease(str);
return rv;}
void AudioFileFormatGeneric::GetUTIs(CFArrayRef *outArray){ *outArray = toCFArray(description().utis);}
void AudioFileFormatGeneric::GetMIMETypes(CFArrayRef *outArray){ *outArray = toCFArray(description().mimeTypes);}
void AudioFileFormatGeneric::GetFileTypeName(CFStringRef *outName){ *outName = CFStringCreateWithCString(nullptr, description().name, kCFStringEncodingUTF8);}
UncertainResult AudioFileFormatGeneric::FileDataIsThisFormat(UInt32 inDataByteSize, const void* inData){ std::vector<uint8_t> buf; AVProbeData probeData;
buf.reserve(inDataByteSize + AVPROBE_PADDING_SIZE); buf.insert(buf.end(), static_cast<const uint8_t*>(inData), static_cast<const uint8_t*>(inData) + inDataByteSize); buf.resize(inDataByteSize + AVPROBE_PADDING_SIZE);
probeData.filename = ""; probeData.buf = buf.data(); probeData.buf_size = inDataByteSize;
return av_probe_input_format(&probeData, false) != nullptr ? kTrue : kFalse;}
AudioFileObject* AudioFileFormatGeneric::New(){ // This method is never called from AFPublic return nullptr;}
OSStatus AudioFileFormatGeneric::GetAvailableFormatIDs(UInt32* ioDataSize, void* outPropertyData){ const std::vector<Format>& formats = description().formats;
*ioDataSize = formats.size() * sizeof(UInt32); if (outPropertyData) { UInt32* dest = static_cast<UInt32*>(outPropertyData); for (int i = 0; i < formats.size(); i++) dest[i] = formats[i].mFormatID; }
return noErr;}
OSStatus AudioFileFormatGeneric::GetAvailableStreamDescriptions(UInt32 inFormatID, UInt32* ioDataSize, void* outPropertyData){ int count = 0;
for (const Format& format : description().formats) { if (format.mFormatID == inFormatID) { if (outPropertyData) { AudioStreamBasicDescription* ptr = static_cast<AudioStreamBasicDescription*>(outPropertyData); ptr[count] = format; } count++; } }
*ioDataSize = count * sizeof(AudioStreamBasicDescription); return noErr;}