public static PIffTrackMediaInfo CreateAudio(
PiffAudioManifest audio, DateTime created, long duration, int timeScale, Guid keyId)
{
return(new PIffTrackMediaInfo(
new PiffMediaHeader(created, duration, timeScale),
new PiffHandlerType(PiffTrackTypes.Audio),
PiffMediaInformation.CreateAudio(audio, keyId)));
}
public PiffProtectedAudioSampleEntry(PiffAudioManifest audio, Guid keyId)
{
if (audio.Channels != 2)
{
throw new ArgumentException("AudioSampleEntry must have 2 channels.");
}
if (audio.CodecId != "AACL")
{
throw new ArgumentException($"Cannot process codec '{audio.CodecId}', only 'AACL' is supported.");
}
ChannelCount = audio.Channels;
SampleSize = audio.BitsPerSample;
SampleRate = ((uint)audio.SamplingRate) << 16;
Scheme = PiffProtectionSchemeInformation.CreateAudio(audio.CodecId, keyId);
StreamDescription = PiffElementaryStreamDescription.Create(
audio.CodecId, 0, audio.BitRate, BufferSize, audio.CodecData);
}
public static PiffMediaInformation CreateAudio(PiffAudioManifest audio, Guid keyId)
{
return(new PiffMediaInformation(new PiffSoundMediaHeader(),
null,
PiffSampleTable.CreateAudio(audio, keyId)));
}
public static PiffTrack CreateAudio(
int trackId, PiffAudioManifest audio, DateTime created, int timeScale, Guid keyId)
{
return(new PiffTrack(PiffTrackHeader.CreateAudio(trackId, created, audio.Duration),
PIffTrackMediaInfo.CreateAudio(audio, created, audio.Duration, timeScale, keyId)));
}
public static PiffSampleTable CreateAudio(PiffAudioManifest audio, Guid keyId)
{
return(new PiffSampleTable(PiffSampleDescription.CreateAudio(audio, keyId)));
}
public static PiffSampleDescription CreateAudio(PiffAudioManifest audio, Guid keyId)
{
return(new PiffSampleDescription(
new PiffProtectedAudioSampleEntry(audio, keyId),
null));
}
