public StreamResponse GetStream(string streamId, int videoPreset, int audioPreset)
{
_logger.LogInformation(
$"Getting stream for streamId {streamId} with videoPreset {videoPreset} and audioPreset {audioPreset}");
var streamResponse = _grabber.GetMediaStream(streamId);
if (_transcoder.GetAvailableAudioPresets().All(item => item.PresetId != audioPreset))
{
var actualAudioPreset = _transcoder.GetAvailableAudioPresets().First().PresetId;
_logger.LogWarning(
$"Replacing audioPreset {audioPreset} with {actualAudioPreset} because not found in transcoder");
audioPreset = actualAudioPreset;
}
if (_transcoder.GetAvailableVideoPresets().All(item => item.PresetId != videoPreset))
{
var actualVideoPreset = _transcoder.GetAvailableVideoPresets().First().PresetId;
_logger.LogWarning(
$"Replacing videoPreset {videoPreset} with {actualVideoPreset} because not found in transcoder");
videoPreset = actualVideoPreset;
}
Uri ourUri = null;
lock (TranscoderCache)
{
var cacheObject = TranscoderCache.FirstOrDefault(item =>
item.VideoSourceUri == streamResponse.Item1 && item.AudioPresetId == audioPreset &&
item.VideoPresetId == videoPreset);
if (cacheObject != null)
{
ourUri = cacheObject.TranscodedVideoUri;
}
}
ourUri ??= _transcoder.StartProcess(streamResponse.Item1, videoPreset, audioPreset);
return(new StreamResponse()
{
Settings = new StreamSettings()
{
AudioPresetId = audioPreset,
VideoPresetId = videoPreset
},
StreamLink = ourUri
});
}
