/// <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) {
var vsi = movie.demux.videoStreamInfo;
movie.videoDecoder = VideoDecoder.CreateFor (vsi);
movie.videoDecoder.Init (out targetFramebuffer, movie.demux, loadOptions);
if(loadOptions.preloadVideo) {
movie.frameUV = UnpackFramesToAtlas(movie.videoDecoder, ref targetFramebuffer, vsi.frameCount);
} else {
movie.frameUV = new Rect[1] { new Rect(0, 0, 1, 1) };
}
}
if (movie.demux.hasAudio && !loadOptions.skipAudio) {
movie.audioDecoder = AudioDecoder.CreateFor (movie.demux.audioStreamInfo);
movie.audioDecoder.Init (out targetAudioBuffer, movie.demux, loadOptions);
}
return movie;
}
/// <summary>
/// Unloads the movie and releases all resources like file handlers associated with it.
/// It's a good idea to stop the playback before unloading the movie.
/// </summary>
public static void Unload(Movie movie)
{
if (movie != null) {
if (movie.sourceStream != null) {
movie.sourceStream.Dispose ();
movie.sourceStream = null;
}
if (movie.videoDecoder != null) {
movie.videoDecoder.Shutdown ();
movie.videoDecoder = null;
}
if (movie.audioDecoder != null) {
movie.audioDecoder.Shutdown ();
movie.audioDecoder = null;
}
if (movie.demux != null) {
movie.demux.Shutdown ();
movie.demux = null;
}
}
}
/// <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");
}
}
