nsresult
AppleATDecoder::GetImplicitAACMagicCookie(const MediaRawData* aSample)
{
MOZ_ASSERT(mTaskQueue->IsCurrentThreadIn());
// Prepend ADTS header to AAC audio.
RefPtr<MediaRawData> adtssample(aSample->Clone());
if (!adtssample) {
return NS_ERROR_OUT_OF_MEMORY;
}
int8_t frequency_index =
mp4_demuxer::Adts::GetFrequencyIndex(mConfig.mRate);
bool rv = mp4_demuxer::Adts::ConvertSample(mConfig.mChannels,
frequency_index,
mConfig.mProfile,
adtssample);
if (!rv) {
NS_WARNING("Failed to apply ADTS header");
return NS_ERROR_FAILURE;
}
if (!mStream) {
OSStatus rv = AudioFileStreamOpen(this,
_MetadataCallback,
_SampleCallback,
kAudioFileAAC_ADTSType,
&mStream);
if (rv) {
NS_WARNING("Couldn't open AudioFileStream");
return NS_ERROR_FAILURE;
}
}
OSStatus status = AudioFileStreamParseBytes(mStream,
adtssample->Size(),
adtssample->Data(),
0 /* discontinuity */);
if (status) {
NS_WARNING("Couldn't parse sample");
}
if (status || mFileStreamError || mMagicCookie.Length()) {
// We have decoded a magic cookie or an error occurred as such
// we won't need the stream any longer.
AudioFileStreamClose(mStream);
mStream = nullptr;
}
return (mFileStreamError || status) ? NS_ERROR_FAILURE : NS_OK;
}
nsresult
AppleATDecoder::GetImplicitAACMagicCookie(const mp4_demuxer::MP4Sample* aSample)
{
// Prepend ADTS header to AAC audio.
nsAutoPtr<mp4_demuxer::MP4Sample> adtssample(aSample->Clone());
if (!adtssample) {
return NS_ERROR_OUT_OF_MEMORY;
}
bool rv = mp4_demuxer::Adts::ConvertSample(mConfig.channel_count,
mConfig.frequency_index,
mConfig.aac_profile,
adtssample);
if (!rv) {
NS_WARNING("Failed to apply ADTS header");
return NS_ERROR_FAILURE;
}
if (!mStream) {
OSStatus rv = AudioFileStreamOpen(this,
_MetadataCallback,
_SampleCallback,
kAudioFileAAC_ADTSType,
&mStream);
if (rv) {
NS_WARNING("Couldn't open AudioFileStream");
return NS_ERROR_FAILURE;
}
}
OSStatus status = AudioFileStreamParseBytes(mStream,
adtssample->size,
adtssample->data,
0 /* discontinuity */);
if (status) {
NS_WARNING("Couldn't parse sample");
}
if (status || mFileStreamError || mMagicCookie.Length()) {
// We have decoded a magic cookie or an error occurred as such
// we won't need the stream any longer.
AudioFileStreamClose(mStream);
mStream = nullptr;
}
return (mFileStreamError || status) ? NS_ERROR_FAILURE : NS_OK;
}
