Combine multiple video files into a file
I have multiple videos recorded at the same frame rate and resolution. I want to combine both videos into one video so that the result file is a large video. I am using MP4 parser api and using below code -
Movie countVideo = new MovieCreator().build(Channels.newChannel(MuxExample.class.getResourceAsStream("/count-video.mp4")));
Movie countAudioDeutsch = new MovieCreator().build(Channels.newChannel(MuxExample.class.getResourceAsStream("/count-deutsch-audio.mp4")));
Movie countAudioEnglish = new MovieCreator().build(Channels.newChannel(MuxExample.class.getResourceAsStream("/count-english-audio.mp4")));
and using jar isoviewer-1.0-RC-35.jar. but it gives an error on the line -
Movie countVideo = new MovieCreator().build(Channels.newChannel(MuxExample.class.getResourceAsStream("/count-video.mp4")));
when building a method. He saysThe method build(String) in the type MovieCreator is not applicable for the arguments (FileChannel)
Is there a problem with jar.So which jar should I use. Or any other way to do it. Please help me to solve this problem.
+3
source to share
2 answers
Try the following:
I made with two video files.
public static void main(String[] args)
{
String filenamevideo = "f:/testvidfol/video.mp4"; //video file on your disk
String filenameaudio = "f:/testvidfol/audio.wav"; //audio file on your disk
IMediaWriter mWriter = ToolFactory.makeWriter("f:/testvidfol/videowriter.flv"); //output file
IContainer containerVideo = IContainer.make();
IContainer containerAudio = IContainer.make();
if (containerVideo.open(filenamevideo, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenamevideo);
if (containerAudio.open(filenameaudio, IContainer.Type.READ, null) < 0)
throw new IllegalArgumentException("Cant find " + filenameaudio);
int numStreamVideo = containerVideo.getNumStreams();
int numStreamAudio = containerAudio.getNumStreams();
System.out.println("Number of video streams: "+numStreamVideo + "\n" + "Number of audio streams: "+numStreamAudio );
int videostreamt = -1; //this is the video stream id
int audiostreamt = -1;
IStreamCoder videocoder = null;
for(int i=0; i<numStreamVideo; i++){
IStream stream = containerVideo.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if(code.getCodecType() == ICodec.Type.CODEC_TYPE_VIDEO)
{
videostreamt = i;
videocoder = code;
break;
}
}
for(int i=0; i<numStreamAudio; i++){
IStream stream = containerAudio.getStream(i);
IStreamCoder code = stream.getStreamCoder();
if(code.getCodecType() == ICodec.Type.CODEC_TYPE_AUDIO)
{
audiostreamt = i;
break;
}
}
if (videostreamt == -1) throw new RuntimeException("No video steam found");
if (audiostreamt == -1) throw new RuntimeException("No audio steam found");
if(videocoder.open()<0 ) throw new RuntimeException("Cant open video coder");
IPacket packetvideo = IPacket.make();
IStreamCoder audioCoder = containerAudio.getStream(audiostreamt).getStreamCoder();
if(audioCoder.open()<0 ) throw new RuntimeException("Cant open audio coder");
mWriter.addAudioStream(0, 0, audioCoder.getChannels(), audioCoder.getSampleRate());
mWriter.addVideoStream(1, 1, videocoder.getWidth(), videocoder.getHeight());
IPacket packetaudio = IPacket.make();
while(containerVideo.readNextPacket(packetvideo) >= 0 ||
containerAudio.readNextPacket(packetaudio) >= 0){
if(packetvideo.getStreamIndex() == videostreamt){
//video packet
IVideoPicture picture = IVideoPicture.make(videocoder.getPixelType(),
videocoder.getWidth(),
videocoder.getHeight());
int offset = 0;
while (offset < packetvideo.getSize()){
int bytesDecoded = videocoder.decodeVideo(picture,
packetvideo,
offset);
if(bytesDecoded < 0) throw new RuntimeException("bytesDecoded not working");
offset += bytesDecoded;
if(picture.isComplete()){
System.out.println(picture.getPixelType());
mWriter.encodeVideo(1, picture);
}
}
}
if(packetaudio.getStreamIndex() == audiostreamt){
//audio packet
IAudioSamples samples = IAudioSamples.make(512,
audioCoder.getChannels(),
IAudioSamples.Format.FMT_S32);
int offset = 0;
while(offset<packetaudio.getSize())
{
int bytesDecodedaudio = audioCoder.decodeAudio(samples,
packetaudio,
offset);
if (bytesDecodedaudio < 0)
throw new RuntimeException("could not detect audio");
offset += bytesDecodedaudio;
if (samples.isComplete()){
mWriter.encodeAudio(0, samples);
}
}
}
}
}
Hope this helps you.
+1
source to share