/// <summary>
/// Gets the size in bytes for the audio with the given parameters.
/// </summary>
/// <param name="job">The encode job.</param>
/// <param name="lengthSeconds">The length of the encode in seconds.</param>
/// <param name="title">The title to encode.</param>
/// <param name="outputTrackList">The list of tracks to encode.</param>
/// <returns>The size in bytes for the audio with the given parameters.</returns>
internal static long GetAudioSize(EncodeJob job, double lengthSeconds, Title title, List <Tuple <AudioEncoding, int> > outputTrackList)
{
long audioBytes = 0;
foreach (Tuple <AudioEncoding, int> outputTrack in outputTrackList)
{
AudioEncoding encoding = outputTrack.Item1;
AudioTrack track = title.AudioTracks[outputTrack.Item2 - 1];
int samplesPerFrame = HandBrakeUtils.GetAudioSamplesPerFrame(encoding.Encoder);
int audioBitrate;
if (Utilities.IsPassthrough(encoding.Encoder))
{
// Input bitrate is in bits/second.
audioBitrate = track.Bitrate / 8;
}
else
{
// Output bitrate is in kbps.
audioBitrate = encoding.Bitrate * 1000 / 8;
}
audioBytes += (long)(lengthSeconds * audioBitrate);
// Audio overhead
audioBytes += encoding.SampleRateRaw * ContainerOverheadPerFrame / samplesPerFrame;
}
return(audioBytes);
}
/// <summary>
/// Gets the size in bytes for the audio with the given parameters.
/// </summary>
/// <param name="job">The encode job.</param>
/// <param name="lengthSeconds">The length of the encode in seconds.</param>
/// <param name="title">The title to encode.</param>
/// <param name="outputTrackList">The list of tracks to encode.</param>
/// <returns>The size in bytes for the audio with the given parameters.</returns>
internal static long GetAudioSize(EncodeJob job, double lengthSeconds, Title title, List <Tuple <AudioEncoding, int> > outputTrackList)
{
long audioBytes = 0;
foreach (Tuple <AudioEncoding, int> outputTrack in outputTrackList)
{
AudioEncoding encoding = outputTrack.Item1;
AudioTrack track = title.AudioTracks[outputTrack.Item2 - 1];
int samplesPerFrame = HandBrakeUtils.GetAudioSamplesPerFrame(encoding.Encoder);
int audioBitrate;
HBAudioEncoder audioEncoder = Encoders.GetAudioEncoder(encoding.Encoder);
if (audioEncoder.IsPassthrough)
{
// Input bitrate is in bits/second.
audioBitrate = track.Bitrate / 8;
}
else if (encoding.EncodeRateType == AudioEncodeRateType.Quality)
{
// Can't predict size of quality targeted audio encoding.
audioBitrate = 0;
}
else
{
int outputBitrate;
if (encoding.Bitrate > 0)
{
outputBitrate = encoding.Bitrate;
}
else
{
outputBitrate = Encoders.GetDefaultBitrate(
audioEncoder,
encoding.SampleRateRaw == 0 ? track.SampleRate : encoding.SampleRateRaw,
Encoders.SanitizeMixdown(Encoders.GetMixdown(encoding.Mixdown), audioEncoder, track.ChannelLayout));
}
// Output bitrate is in kbps.
audioBitrate = outputBitrate * 1000 / 8;
}
audioBytes += (long)(lengthSeconds * audioBitrate);
// Audio overhead
audioBytes += encoding.SampleRateRaw * ContainerOverheadPerFrame / samplesPerFrame;
}
return(audioBytes);
}