PassOwnPtr<AudioBus> PlatformSupport::loadPlatformAudioResource(const char* name, double sampleRate)
{
const WebData& resource = webKitPlatformSupport()->loadResource(name);
if (resource.isEmpty())
return nullptr;
return decodeAudioFileData(resource.data(), resource.size(), sampleRate);
}
PassRefPtr<AudioBus> createBusFromInMemoryAudioFile(const void* data, size_t dataSize, bool mixToMono, float sampleRate)
{
// FIXME: the sampleRate parameter is ignored. It should be removed from the API.
RefPtr<AudioBus> audioBus = decodeAudioFileData(static_cast<const char*>(data), dataSize, sampleRate);
if (!audioBus.get())
return 0;
// If the bus needs no conversion then return as is.
if ((!mixToMono || audioBus->numberOfChannels() == 1) && audioBus->sampleRate() == sampleRate)
return audioBus;
return AudioBus::createBySampleRateConverting(audioBus.get(), mixToMono, sampleRate);
}
PassRefPtr<AudioBus> AudioBus::loadPlatformResource(const char* name, float sampleRate)
{
const blink::WebData& resource = blink::Platform::current()->loadResource(name);
if (resource.isEmpty())
return 0;
// FIXME: the sampleRate parameter is ignored. It should be removed from the API.
RefPtr<AudioBus> audioBus = decodeAudioFileData(resource.data(), resource.size(), sampleRate);
if (!audioBus.get())
return 0;
// If the bus is already at the requested sample-rate then return as is.
if (audioBus->sampleRate() == sampleRate)
return audioBus;
return AudioBus::createBySampleRateConverting(audioBus.get(), false, sampleRate);
}
PassRefPtr<AudioBus> AudioBus::loadPlatformResource(const char* name, float sampleRate)
{
String absoluteFilename(makeString(DATA_DIR, "/webaudio/resources/", name, ".wav"));
const WebKit::WebData& resource = WebKit::Platform::current()->loadResource(absoluteFilename.utf8().data());
if (resource.isEmpty())
return PassRefPtr<AudioBus>();
// FIXME: the sampleRate parameter is ignored. It should be removed from the API.
RefPtr<AudioBus> audioBus = decodeAudioFileData(resource.data(), resource.size(), sampleRate);
if (!audioBus.get())
return PassRefPtr<AudioBus>();
// If the bus is already at the requested sample-rate then return as is.
if (audioBus->sampleRate() == sampleRate)
return audioBus.release();
return AudioBus::createBySampleRateConverting(audioBus.get(), false, sampleRate);
}