private VideoDecoder(VideoCodecId videoCodecId, IntPtr decoderHandle)
{
this.videoCodecId = videoCodecId;
this.decoderHandle = decoderHandle;
currentFrameParms = new DecodedVideoFrameParameters(0, 0, FFmpegPixelFormat.None);
scalersMap = new Dictionary <TransformParameters, DecodedVideoScaler>();
}
public static VideoDecoder CreateDecoder(VideoCodecId videoCodecId)
{
int resultCode = FFmpegVideoPInvoke.CreateVideoDecoder(videoCodecId, out IntPtr decoderPtr);
if (resultCode != 0)
{
throw new DecoderException($"An error occurred while creating video decoder for {videoCodecId} codec, code: {resultCode}");
}
return(new VideoDecoder(videoCodecId, decoderPtr));
}
private VideoDecoder GetDecoderForFrame(RawVideoFrame videoFrame)
{
VideoCodecId codecId = DetectCodecId(videoFrame);
if (!videoDecodersMap.TryGetValue(codecId, out VideoDecoder decoder))
{
decoder = VideoDecoder.CreateDecoder(codecId);
videoDecodersMap.Add(codecId, decoder);
}
return(decoder);
}
public static extern int CreateVideoDecoder(VideoCodecId videoCodecId, out IntPtr handle);
