}).on('end', function(){
var rgb = new FFmpeg({ source: src });
rgb.addOption(
'-vf'
, '[in] scale=iw:ih,\
pad=iw:2*ih [top];\
movie=seethru-tmp-alpha.mov,\
scale=iw:ih [bottom];\
[top][bottom] overlay=0:h [out]'
).withVideoCodec(metadata.streams[0].codec_name);
if (metadata.streams.length > 1){
rgb.withAudioCodec(metadata.streams[1].codec_name);
}
rgb.on('end', function(){
fs.unlink('seethru-tmp-alpha.' + intermediateFormat, function(){
console.log('Processing ' + src + ' finished!');
});
}).on('error', function(err){
console.error('An error occurred combining the video sources: ' + err.message);
throw err;
}).saveToFile(argv.out);
}).saveToFile('seethru-tmp-alpha.' + intermediateFormat);
function createVideoCommand(data, streamspec, height, candidates, seekTime) {
var command = new Ffmpeg({ source: data.source, timeout: 0 });
if (isNaN(height)) {
height = data.height;
}
// Select streams
var selectedStreams = addStreamOptions(command, data, streamspec);
logger.debug("Selected streams: %j", selectedStreams);
logger.debug("Candidates: %j", candidates);
var audioStream = selectedStreams.audio;
var audioCopy = false;
var videoStream = selectedStreams.video;
var videoCopy = false;
if (data.height === height && seekTime === 0) {
// Attempt to copy video stream
var videoCopyCandidates = matchVideo(candidates, videoStream);
if (videoCopyCandidates.length) {
candidates = videoCopyCandidates;
videoCopy = true;
}
}
if (seekTime === 0) {
// Try to copy audio stream
var audioCopyCandidates = matchAudio(candidates, audioStream);
if (audioCopyCandidates.length) {
candidates = audioCopyCandidates;
audioCopy = true;
}
}
// Use first remaining candidate
var chosen = candidates[0];
logger.debug("Chose candidate: %j", chosen);
if (audioCopy) {
logger.debug("Can copy audio");
command.withAudioCodec("copy");
} else {
command.withAudioCodec(chosen.acodec);
var acodecDef = capabilities.acodecs[chosen.acodec];
if (typeof acodecDef === "object" && "options" in acodecDef) {
command.addOptions(acodecDef.options);
}
}
if (videoCopy) {
logger.debug("Can copy video");
command.withVideoCodec("copy");
} else {
command.withVideoCodec(chosen.vcodec);
if (height !== data.height) {
command.withSize("?x" + height);
}
var vcodecDef = capabilities.vcodecs[chosen.vcodec];
if (typeof vcodecDef === "object" && "options" in vcodecDef) {
command.addOptions(vcodecDef.options);
}
}
// Apply provider options
if (data.options && data.options.length) {
command.addOptions(data.options);
}
// Apply provider filters
if (data.filters) {
data.filters.forEach(function(filter) {
command.withVideoFilter(filter);
});
}
// Apply format and save mimetype
command.toFormat(capabilities.vformats[chosen.format].format);
command._nestorMimetype = chosen.format;
return command;
}