public InputMediaFile(string filePath)
{
if (!File.Exists(filePath))
{
throw new ArgumentException($"The file ({filePath}) does not exists!", nameof(filePath));
}
int errorCode;
fixed(AVFormatContext **formatContextPointerPointer = &this.avFormatContextPtr)
{
errorCode = ffmpeg.avformat_open_input(formatContextPointerPointer, filePath, null, null);
FFmpegWrapperException.ThrowInCaseOfError(errorCode);
}
errorCode = ffmpeg.avformat_find_stream_info(this.avFormatContextPtr, null);
FFmpegWrapperException.ThrowInCaseOfError(errorCode);
Streams = CreateStreams();
MediaStream firstVideoStream = Streams.FirstOrDefault(s => s.CodecType == MediaType.AVMEDIA_TYPE_VIDEO);
if (firstVideoStream == null)
{
throw new NotSupportedException($"The video file ({filePath}) does not contain video stream!");
}
FrameTime = TimeSpan.FromSeconds(1 / firstVideoStream.FrameRate.Value);
}
public bool TryFindStream(Guid streamId, out StreamAction stream)
{
stream = Streams
.FirstOrDefault(x => x.Id == streamId);
return(stream != null);
}
public bool TryFindStream(string streamKey, out StreamAction stream)
{
stream = Streams
.FirstOrDefault(x => x.Key == streamKey);
return(stream != null);
}
public Task RemoveStreamFromCollectionAndDatabase(StreamMedia stream)
{
var collectionStream = Streams?.FirstOrDefault(x => x.Path == stream.Path);
if (collectionStream != null)
{
Streams?.Remove(collectionStream);
}
return(DeleteStream(stream));
}
public StreamInformation InformationFromResolution(string reolution)
{
return(Streams.FirstOrDefault(e => e.Resolution == reolution));
}