public HttpResponseMessage StartRecording([FromUri] VideoStartRequest startRequest)
{
if (startRequest == null || string.IsNullOrEmpty(startRequest.Source))
{
return
(GenerateJsonResponse(
new
{
Started = false,
StartRequest = startRequest,
Error = "No source was specified. A source is required."
}));
}
if (startRequest.MaxDurationSecs == 0)
{
startRequest.MaxDurationSecs = (5 * 60);
}
var existingKeys =
FfmpegInstance.RunningInstances.Where(i => i.StartRequest.RecordingKey == startRequest.RecordingKey);
foreach (var existingInstance in existingKeys)
{
existingInstance.Stop(null);
}
FfmpegInstance newInstance = new FfmpegInstance();
newInstance.Start(startRequest);
Console.WriteLine("Starting recording: " + Newtonsoft.Json.JsonConvert.SerializeObject(startRequest));
return(GenerateJsonResponse(new { Started = true, StartRequest = startRequest }));
}
public void Start(VideoStartRequest startRequest)
{
StartRequest = startRequest;
_encoder = new FfMpegEncoder();
_runningInstances.Add(this);
string outFilePath = Path.Combine(new Video.VideoStorageProvider().VideoRootFolder.FullName,
Guid.NewGuid().ToString().Replace("-", "") + ".mp4");
RecordingPath = outFilePath;
string inputArgs = $"-i {startRequest.Source}";
string outputArgs = $"-f mp4 -vcodec mpeg4 -r 30 -t {startRequest.MaxDurationSecs} {outFilePath}";
if (startRequest.UseTcpRtsp)
{
inputArgs = $"-rtsp_transport tcp {inputArgs}";
}
string encodeArgs = $"{inputArgs} {outputArgs}";
System.Threading.ThreadPool.QueueUserWorkItem((obj) =>
{
try
{
_encoder.Encode(_ffMpegPath, encodeArgs);
}
catch (Exception ex)
{
Console.WriteLine("Error encoding from start request " +
Newtonsoft.Json.JsonConvert.SerializeObject(StartRequest) + ": " + ex.Message);
}
});
Stopwatch swFileCreate = new Stopwatch();
swFileCreate.Start();
while (swFileCreate.ElapsedMilliseconds < 10000)
{
if (System.IO.File.Exists(RecordingPath))
{
break;
}
System.Threading.Thread.Sleep(500);
}
if (!System.IO.File.Exists(RecordingPath))
{
Console.WriteLine("Warning: Recording file not created after 10 seconds for request " +
Newtonsoft.Json.JsonConvert.SerializeObject(StartRequest));
}
}
