void UpdateSampleRateIfNeeded(AudioNodeStream* aStream, uint32_t aChannels)
{
if (mPlaybackRateTimeline.HasSimpleValue()) {
mPlaybackRate = mPlaybackRateTimeline.GetValue();
} else {
mPlaybackRate = mPlaybackRateTimeline.GetValueAtTime(aStream->GetCurrentPosition());
}
// Make sure the playback rate and the doppler shift are something
// our resampler can work with.
if (ComputeFinalOutSampleRate(aStream->SampleRate()) == 0) {
mPlaybackRate = 1.0;
mDopplerShift = 1.0;
}
uint32_t currentOutSampleRate, currentInSampleRate;
if (ShouldResample(aStream->SampleRate())) {
SpeexResamplerState* resampler = Resampler(aStream, aChannels);
speex_resampler_get_rate(resampler, ¤tInSampleRate, ¤tOutSampleRate);
uint32_t finalSampleRate = ComputeFinalOutSampleRate(aStream->SampleRate());
if (currentOutSampleRate != finalSampleRate) {
speex_resampler_set_rate(resampler, currentInSampleRate, finalSampleRate);
}
}
}
void UpdateSampleRateIfNeeded(uint32_t aChannels)
{
float playbackRate;
if (mPlaybackRateTimeline.HasSimpleValue()) {
playbackRate = mPlaybackRateTimeline.GetValue();
} else {
playbackRate = mPlaybackRateTimeline.GetValueAtTime(mSource->GetCurrentPosition());
}
if (playbackRate <= 0 || playbackRate != playbackRate) {
playbackRate = 1.0f;
}
int32_t outRate = ComputeFinalOutSampleRate(playbackRate);
UpdateResampler(outRate, aChannels);
}
void UpdateSampleRateIfNeeded(uint32_t aChannels, StreamTime aStreamPosition)
{
float playbackRate;
float detune;
if (mPlaybackRateTimeline.HasSimpleValue()) {
playbackRate = mPlaybackRateTimeline.GetValue();
} else {
playbackRate = mPlaybackRateTimeline.GetValueAtTime(aStreamPosition);
}
if (mDetuneTimeline.HasSimpleValue()) {
detune = mDetuneTimeline.GetValue();
} else {
detune = mDetuneTimeline.GetValueAtTime(aStreamPosition);
}
if (playbackRate <= 0 || mozilla::IsNaN(playbackRate)) {
playbackRate = 1.0f;
}
detune = std::min(std::max(-1200.f, detune), 1200.f);
int32_t outRate = ComputeFinalOutSampleRate(playbackRate, detune);
UpdateResampler(outRate, aChannels);
}
