/// <summary>
/// Factory method for instantiating the right decoder instance based on streamInfo.
/// </summary>
public static VideoDecoder CreateFor(VideoStreamInfo streamInfo)
{
if (streamInfo == null)
{
throw new System.ArgumentException("Can't choose VideoDecoder without streamInfo (with at least codecFourCC)");
}
// list of FourCC codes http://www.fourcc.org/codecs.php
switch (streamInfo.codecFourCC)
{
case VideoDecoderMJPEG.FOURCC_MJPG:
case VideoDecoderMJPEG.FOURCC_CJPG:
case VideoDecoderMJPEG.FOURCC_ffds:
return(new VideoDecoderMJPEG(streamInfo));
case VideoDecoderMPNG.FOURCC_MPNG:
return(new VideoDecoderMPNG(streamInfo));
case VideoDecoderRGB.FOURCC_DIB_:
case VideoDecoderRGB.FOURCC_NULL:
return(new VideoDecoderRGB(streamInfo));
}
throw new MpException("No decoder for video fourCC 0x" + streamInfo.codecFourCC.ToString("X") +
" (" + RiffParser.FromFourCC(streamInfo.codecFourCC) + ")");
}
private string GetSourceInfo()
{
// Has the source changed? if so, cache it's length, because it's too resouce hungry to call freely.
if (mp.source != lastSource)
{
if (mp.source != null)
{
sourceSize = mp.source.bytes.Length;
}
lastSource = mp.source;
}
// build source info string
StringBuilder infoSb = new StringBuilder("");
if (mp.source == null)
{
infoSb.Append("Movie not loaded");
}
else
{
// Source info
infoSb.Append(mp.source.name).Append(" ").Append(((float)sourceSize / 1000000f).ToString("#.##")).Append(" Mb\n");
// Video info
infoSb.Append("Video: ");
if (mp.movie != null && mp.movie.demux != null && mp.movie.demux.videoStreamInfo != null)
{
var videoStreamInfo = mp.movie.demux.videoStreamInfo;
infoSb.AppendFormat("{0} {1}fps {2}x{3} ({4:#} kbps)\n", RiffParser.FromFourCC(videoStreamInfo.codecFourCC),
videoStreamInfo.framerate, videoStreamInfo.width, videoStreamInfo.height,
0.001f * videoStreamInfo.lengthBytes / videoStreamInfo.lengthSeconds);
}
else
{
infoSb.Append("N/A\n");
}
// Audio info
infoSb.Append("Audio: ");
if (mp.movie != null && mp.movie.demux != null && mp.movie.demux.audioStreamInfo != null)
{
var audioStreamInfo = mp.movie.demux.audioStreamInfo;
var audioFourCC = RiffParser.FromFourCC(audioStreamInfo.codecFourCC);
infoSb.AppendFormat("{0} {1}kHz {2}ch ({3:#} kbps)", audioFourCC,
audioStreamInfo.sampleRate / 1000f, audioStreamInfo.channels,
0.001f * audioStreamInfo.lengthBytes / audioStreamInfo.lengthSeconds);
}
else
{
infoSb.Append("N/A");
}
}
return(infoSb.ToString());
}
/// <summary>
/// Factory method for instantiating the right audio decoder based on stream info.
/// </summary>
public static AudioDecoder CreateFor(AudioStreamInfo streamInfo)
{
if (streamInfo == null)
{
throw new System.ArgumentException("Can't choose AudioDecoder without streamInfo (with at least codecFourCC)");
}
switch (streamInfo.codecFourCC)
{
case AudioDecoderPCM.FOURCC_MS:
return(new AudioDecoderPCM(streamInfo));
}
throw new MpException("No decoder for audio fourCC 0x" + streamInfo.codecFourCC.ToString("X") +
" (" + RiffParser.FromFourCC(streamInfo.codecFourCC) + ")");
}
