public void Parse_TestData_ReturnsValidFrame()
{
var testCodecInfo = new PCMCodecInfo(44100, 16, 2);
byte[] testBytes = { 1, 2, 3, 4, 5, 6, 7, 8 };
RawPCMFrame frame = null;
var parser = new PCMAudioPayloadParser(testCodecInfo);
parser.FrameGenerated = rawFrame => frame = (RawPCMFrame)rawFrame;
parser.Parse(TimeSpan.Zero, new ArraySegment <byte>(testBytes), true);
Assert.IsNotNull(frame);
Assert.AreEqual(FrameType.Audio, frame.Type);
Assert.IsTrue(frame.FrameSegment.SequenceEqual(testBytes));
Assert.AreEqual(44100, frame.SampleRate);
Assert.AreEqual(16, frame.BitsPerSample);
Assert.AreEqual(2, frame.Channels);
}
public void Parse_SDPWithPCMTrack_ReturnsWithPCMCodecTrack(int bitsPerSample)
{
string testInput = "m=audio 0 RTP/AVP 97\r\n" +
"c=IN IP4 0.0.0.0\r\n" +
"b=AS:0\r\n" +
$"a=rtpmap:97 L{bitsPerSample}/16000\r\n" +
"a=control:track2\r\n";
var testBytes = Encoding.ASCII.GetBytes(testInput);
var parser = new SdpParser();
RtspMediaTrackInfo audioTrack = parser.Parse(testBytes).Where(t => t is RtspMediaTrackInfo)
.Cast <RtspMediaTrackInfo>().First();
PCMCodecInfo codecInfo = (PCMCodecInfo)audioTrack.Codec;
Assert.AreEqual(1, codecInfo.Channels);
Assert.AreEqual(16000, codecInfo.SampleRate);
Assert.AreEqual(bitsPerSample, codecInfo.BitsPerSample);
}
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);
}
public PCMAudioPayloadParser(PCMCodecInfo pcmCodecInfo)
{
_pcmCodecInfo = pcmCodecInfo ?? throw new ArgumentNullException(nameof(pcmCodecInfo));
}
