public AudioFormat(int sampleRate, int channels, int sampleBits, bool planar = false)
{
SampleRate = sampleRate;
BitsPerSample = sampleBits == 24 ? 32 : sampleBits;
ChannelLayout = GetDefaultChannelLayout(channels);
switch (sampleBits)
{
case 8: SampleFormat = AVSampleFormat.UInt8; break;
case 16: SampleFormat = AVSampleFormat.Int16; break;
case 24: SampleFormat = AVSampleFormat.Int32; break;
case 32: SampleFormat = AVSampleFormat.Float; break;
case 64: SampleFormat = AVSampleFormat.Double; break;
default: throw new ArgumentException($"不支持的采样位数:{sampleBits}");
}
if (planar)
{
SampleFormat = SampleFormat.ToPlanar();
}
ValidBitsPerSample = SampleFormat.EqualsType(AVSampleFormat.Int32) ? 24 : BitsPerSample;
}
public AudioFormat ToPlanar()
{
return(new AudioFormat(SampleRate, ChannelLayout, SampleFormat.ToPlanar()));
}