public void HalfChange()
{
ulong len = (ulong)kSdpFullString.Length + 1; // at least as big as input (+ null terminator)
StringBuilder buffer = new StringBuilder((int)len);
var audioFilter = new PeerConnection.NativeMethods.SdpFilter
{
CodecName = "opus"
};
var videoFilter = new PeerConnection.NativeMethods.SdpFilter
{
CodecName = "a non-existing codec name causing no change"
};
uint res = PeerConnection.NativeMethods.SdpForceCodecs(kSdpFullString, audioFilter, videoFilter, buffer, ref len);
Assert.AreEqual(res, PeerConnection.NativeMethods.MRS_SUCCESS);
string output = buffer.ToString();
// Audio codec should be "opus" alone
{
var regex = new Regex("m=audio [^ ]+ [^ ]+ ([^\\r\\n]+)\\r?\\n");
var audioMedia = regex.Match(output);
Assert.NotNull(audioMedia);
Assert.AreEqual(2, audioMedia.Groups.Count); // [0] is always the entire match
Assert.AreEqual("111", audioMedia.Groups[1].Value); // [1] is the first capture
}
// Video codec should be left unchanged
{
var regex = new Regex("m=video [^ ]+ [^ ]+ ([^\\r\\n]+)\\r?\\n");
var videoMedia = regex.Match(output);
Assert.NotNull(videoMedia);
Assert.AreEqual(2, videoMedia.Groups.Count); // [0] is always the entire match
Assert.AreEqual("120", videoMedia.Groups[1].Value); // [1] is the first capture
}
}
public void ShortBuffer()
{
ulong len = (ulong)kSdpFullString.Length; // missing space for null terminator
StringBuilder buffer = new StringBuilder((int)len);
var audioFilter = new PeerConnection.NativeMethods.SdpFilter();
var videoFilter = new PeerConnection.NativeMethods.SdpFilter();
uint res = PeerConnection.NativeMethods.SdpForceCodecs(kSdpFullString, audioFilter, videoFilter, buffer, ref len);
Assert.AreEqual(PeerConnection.NativeMethods.MRS_E_INVALID_PARAMETER, res);
}
public void NoOp()
{
ulong len = (ulong)kSdpFullString.Length + 1; // exact size + null terminator
StringBuilder buffer = new StringBuilder((int)len);
var audioFilter = new PeerConnection.NativeMethods.SdpFilter();
var videoFilter = new PeerConnection.NativeMethods.SdpFilter();
uint res = PeerConnection.NativeMethods.SdpForceCodecs(kSdpFullString, audioFilter, videoFilter, buffer, ref len);
Assert.AreEqual(PeerConnection.NativeMethods.MRS_SUCCESS, res);
Assert.AreEqual(kSdpFullString, buffer.ToString());
}
