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First stage of channnelMask support.

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WMA encoder now supports multichannel audio and WMA 10 codec in VBR mode.
This commit is contained in:
Grigory Chudov
2013-04-14 13:54:58 -04:00
parent 8ea3d0b544
commit 40f6482077
2 changed files with 192 additions and 46 deletions
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58
CUETools.Codecs/AudioPCMConfig.cs
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@@ -3,22 +3,80 @@
public class AudioPCMConfig
{
public static readonly AudioPCMConfig RedBook = new AudioPCMConfig(16, 2, 44100);
public enum SpeakerConfig
{
SPEAKER_FRONT_LEFT = 0x1,
SPEAKER_FRONT_RIGHT = 0x2,
SPEAKER_FRONT_CENTER = 0x4,
SPEAKER_LOW_FREQUENCY = 0x8,
SPEAKER_BACK_LEFT = 0x10,
SPEAKER_BACK_RIGHT = 0x20,
SPEAKER_FRONT_LEFT_OF_CENTER = 0x40,
SPEAKER_FRONT_RIGHT_OF_CENTER = 0x80,
SPEAKER_BACK_CENTER = 0x100,
SPEAKER_SIDE_LEFT = 0x200,
SPEAKER_SIDE_RIGHT = 0x400,
SPEAKER_TOP_CENTER = 0x800,
SPEAKER_TOP_FRONT_LEFT = 0x1000,
SPEAKER_TOP_FRONT_CENTER = 0x2000,
SPEAKER_TOP_FRONT_RIGHT = 0x4000,
SPEAKER_TOP_BACK_LEFT = 0x8000,
SPEAKER_TOP_BACK_CENTER = 0x10000,
SPEAKER_TOP_BACK_RIGHT = 0x20000,
KSAUDIO_SPEAKER_MONO = (SPEAKER_FRONT_CENTER),
KSAUDIO_SPEAKER_STEREO = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT),
KSAUDIO_SPEAKER_QUAD = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT),
KSAUDIO_SPEAKER_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_BACK_CENTER),
KSAUDIO_SPEAKER_5POINT1 = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT),
KSAUDIO_SPEAKER_5POINT1_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT),
KSAUDIO_SPEAKER_7POINT1 = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_FRONT_RIGHT_OF_CENTER),
KSAUDIO_SPEAKER_7POINT1_SURROUND = (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)
}
private int _bitsPerSample;
private int _channelCount;
private int _sampleRate;
private SpeakerConfig _channelMask;
public int BitsPerSample { get { return _bitsPerSample; } }
public int ChannelCount { get { return _channelCount; } }
public int SampleRate { get { return _sampleRate; } }
public int BlockAlign { get { return _channelCount * ((_bitsPerSample + 7) / 8); } }
public SpeakerConfig ChannelMask { get { return _channelMask; } }
public bool IsRedBook { get { return _bitsPerSample == 16 && _channelCount == 2 && _sampleRate == 44100; } }
public SpeakerConfig GetDefaultChannelMask()
{
switch (_channelCount)
{
case 1:
return SpeakerConfig.KSAUDIO_SPEAKER_MONO;
case 2:
return SpeakerConfig.KSAUDIO_SPEAKER_STEREO;
case 3:
return SpeakerConfig.KSAUDIO_SPEAKER_STEREO | SpeakerConfig.SPEAKER_LOW_FREQUENCY;
case 4:
return SpeakerConfig.KSAUDIO_SPEAKER_QUAD;
case 5:
//return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1 & ~SpeakerConfig.SPEAKER_LOW_FREQUENCY;
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND & ~SpeakerConfig.SPEAKER_LOW_FREQUENCY;
case 6:
//return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1;
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND;
case 7:
return SpeakerConfig.KSAUDIO_SPEAKER_5POINT1_SURROUND | SpeakerConfig.SPEAKER_BACK_CENTER;
case 8:
return SpeakerConfig.KSAUDIO_SPEAKER_7POINT1_SURROUND;
}
return (SpeakerConfig)((1 << _channelCount) - 1);
}
public AudioPCMConfig(int bitsPerSample, int channelCount, int sampleRate)
{
_bitsPerSample = bitsPerSample;
_channelCount = channelCount;
_sampleRate = sampleRate;
_channelMask = GetDefaultChannelMask();
}
}
}