/// <summary>
/// Starts the processing.
/// </summary>
void StartProcessing()
{
movie = new Movie();
movie.sourceStream = File.OpenRead(srcPath);
dstStream = File.OpenWrite(dstPath);
remux = new AviRemux();
// create and initialize demux for the source data
movie.demux = Demux.forSource(movie.sourceStream);
movie.demux.Init(movie.sourceStream);
// create video stream and decoder too. without a decoder we can't access pixels to compare
if (!movie.demux.hasVideo)
{
throw new MpException("Remux needs video stream inside an AVI");
}
movie.videoDecoder = VideoDecoder.CreateFor(movie.demux.videoStreamInfo);
movie.videoDecoder.Init(out framebuffer, movie.demux);
// create a remux. this will write into dstStream
bool outputHasAudio = movie.demux.hasAudio && !discardAudio;
remux.Init(dstStream, movie.demux.videoStreamInfo, outputHasAudio ? movie.demux.audioStreamInfo : null);
// create a duplicate finder. most of the options control how the frames are actually compared
options.otherStreamsAvailable = outputHasAudio;
dupFinder = new DuplicateFrameFinder(movie.videoDecoder, framebuffer, 0, movie.demux.videoStreamInfo.frameCount, options);
// if we want a to log the duplicate indexes into a file, then clear the file first
if (!string.IsNullOrEmpty(logDuplicatesPath))
{
File.WriteAllText(logDuplicatesPath, "# Duplicate frame index for " + srcPath + "\n");
}
}
/// <summary>
/// Extracts raw audio from the movie.
/// Usable only for reasonable sized streams, because byte[] is returned.
/// </summary>
/// <returns>The raw audio</returns>
/// <param name="src">File contents</param>
/// <param name="demuxUsed">Demux used</param>
public static byte[] ExtractRawAudio(Stream sourceStream, out Demux demux)
{
demux = Demux.forSource (sourceStream);
demux.Init (sourceStream);
if (!demux.hasAudio)
return null;
byte[] bigBuf = new byte[demux.audioStreamInfo.lengthBytes];
demux.ReadAudioSamples (out bigBuf, demux.audioStreamInfo.sampleCount);
return bigBuf;
}
/// <summary>
/// Extracts raw audio from the movie.
/// Usable only for reasonable sized streams, because byte[] is returned.
/// </summary>
/// <returns>The raw audio</returns>
/// <param name="src">File contents</param>
/// <param name="demuxUsed">Demux used</param>
public static byte[] ExtractRawAudio(Stream sourceStream, out Demux demux)
{
demux = Demux.forSource(sourceStream);
demux.Init(sourceStream);
if (!demux.hasAudio)
{
return(null);
}
byte[] bigBuf = new byte[demux.audioStreamInfo.lengthBytes];
demux.ReadAudioSamples(out bigBuf, demux.audioStreamInfo.sampleCount);
return(bigBuf);
}
/// <summary>
/// Extracts raw video from the movie.
/// Usable only for reasonable sized streams, because byte[] is returned.
/// </summary>
/// <returns>The raw video</returns>
/// <param name="src">File contents</param>
/// <param name="demuxUsed">Demux used</param>
public static byte[] ExtractRawVideo(Stream sourceStream, out Demux demux)
{
demux = Demux.forSource(sourceStream);
demux.Init(sourceStream);
if (!demux.hasVideo)
{
return(null);
}
byte[] bigBuf = new byte[demux.videoStreamInfo.lengthBytes];
int bigBufOffset = 0;
int bytesRead = 0;
do
{
byte[] buf;
bytesRead = demux.ReadVideoFrame(out buf);
System.Array.Copy(buf, 0, bigBuf, bigBufOffset, bytesRead);
bigBufOffset += bytesRead;
} while(bytesRead > 0);
return(bigBuf);
}
public abstract void Init(out AudioClip audioClip, Demux demux, LoadOptions loadOptions = null);
/// <summary>
/// Extracts raw video from the movie.
/// Usable only for reasonable sized streams, because byte[] is returned.
/// </summary>
/// <returns>The raw video</returns>
/// <param name="src">File contents</param>
/// <param name="demuxUsed">Demux used</param>
public static byte[] ExtractRawVideo(Stream sourceStream, out Demux demux)
{
demux = Demux.forSource (sourceStream);
demux.Init (sourceStream);
if (!demux.hasVideo)
return null;
byte[] bigBuf = new byte[demux.videoStreamInfo.lengthBytes];
int bigBufOffset = 0;
int bytesRead = 0;
do {
byte[] buf;
bytesRead = demux.ReadVideoFrame (out buf);
System.Array.Copy (buf, 0, bigBuf, bigBufOffset, bytesRead);
bigBufOffset += bytesRead;
} while(bytesRead > 0);
return bigBuf;
}
public abstract void Init(out Texture2D framebuffer, Demux demux, LoadOptions loadOptions = null);
public abstract void Init(out Texture2D framebuffer, Demux demux, LoadOptions loadOptions = null);
public abstract void Init(out AudioClip audioClip, Demux demux, LoadOptions loadOptions = null);
/// <summary>
/// Loads movie with audio. It will be ready for playback
/// </summary>
/// <param name="source">Source</param>
/// <param name="targetFramebuffer">Target framebuffer</param>
/// <param name="targetAudioBuffer">Target audio buffer</param>
/// <param name="loadOptions">Load options</param>
public static Movie Load(MovieSource source, out Texture2D targetFramebuffer, out AudioClip targetAudioBuffer, LoadOptions loadOptions = null)
{
if (loadOptions == null)
{
loadOptions = LoadOptions.Default;
}
if (source.stream == null && source.url == null)
{
throw new MpException("Either source.stream or source.url must be provided");
}
targetFramebuffer = null;
targetAudioBuffer = null;
var movie = new Movie();
movie.sourceStream = source.stream; // can be NULL
// create and initialize demux for the source data
if (source.url != null)
{
movie.demux = loadOptions.demuxOverride != null ? loadOptions.demuxOverride : Streamer.forUrl(source.url);
((Streamer)movie.demux).Connect(source.url, loadOptions);
}
else
{
movie.demux = loadOptions.demuxOverride != null ? loadOptions.demuxOverride : Demux.forSource(source.stream);
movie.demux.Init(source.stream, loadOptions);
}
if (movie.demux.hasVideo && !loadOptions.skipVideo)
{
movie.videoDecoder = VideoDecoder.CreateFor(movie.demux.videoStreamInfo);
movie.videoDecoder.Init(out targetFramebuffer, movie.demux, loadOptions);
}
if (movie.demux.hasAudio && !loadOptions.skipAudio)
{
movie.audioDecoder = AudioDecoder.CreateFor(movie.demux.audioStreamInfo);
movie.audioDecoder.Init(out targetAudioBuffer, movie.demux, loadOptions);
}
return(movie);
}
