private static CodecInfo TryCreateCodecInfo(int payloadFormatNumber)
{
CodecInfo codecInfo = null;
switch (payloadFormatNumber)
{
case 0:
codecInfo = new G711UCodecInfo();
break;
case 2:
codecInfo = new G726CodecInfo(32 * 1000);
break;
case 8:
codecInfo = new G711ACodecInfo();
break;
case 10:
codecInfo = new PCMCodecInfo(44100, 16, 2);
break;
case 11:
codecInfo = new PCMCodecInfo(44100, 16, 1);
break;
case 26:
codecInfo = new MJPEGCodecInfo();
break;
case 98:
codecInfo = new MetadataCodecInfo();
break;
case 105:
codecInfo = new H264CodecInfo();
break;
}
return(codecInfo);
}
private static CodecInfo TryCreateCodecInfo(string codecName, int samplesFrequency, int channels)
{
if (codecName == "JPEG")
{
return(new MJPEGCodecInfo());
}
if (codecName == "H264")
{
return(new H264CodecInfo());
}
bool isPcmu = codecName == "PCMU";
bool isPcma = codecName == "PCMA";
if (isPcmu || isPcma)
{
G711CodecInfo g711CodecInfo;
if (isPcmu)
{
g711CodecInfo = new G711UCodecInfo();
}
else
{
g711CodecInfo = new G711ACodecInfo();
}
if (samplesFrequency != 0)
{
g711CodecInfo.SampleRate = samplesFrequency;
}
if (channels != 0)
{
g711CodecInfo.Channels = channels;
}
return(g711CodecInfo);
}
if (codecName == "L16" || codecName == "L8")
{
return(new PCMCodecInfo(samplesFrequency != 0 ? samplesFrequency : 8000,
codecName == "L16" ? 16 : 8, channels != 0 ? channels : 1));
}
if (codecName == "MPEG4-GENERIC")
{
return(new AACCodecInfo());
}
if (codecName.Contains("726"))
{
int bitrate;
if (codecName.Contains("16"))
{
bitrate = 16000;
}
else if (codecName.Contains("24"))
{
bitrate = 24000;
}
else if (codecName.Contains("32"))
{
bitrate = 32000;
}
else if (codecName.Contains("40"))
{
bitrate = 40000;
}
else
{
return(null);
}
var g726CodecInfo = new G726CodecInfo(bitrate);
if (samplesFrequency != 0)
{
g726CodecInfo.SampleRate = samplesFrequency;
}
else if (channels != 0)
{
g726CodecInfo.Channels = channels;
}
return(g726CodecInfo);
}
return(null);
}
