I am trying to merge audio and video file. The length of audio and video file are same but after complete merging process in output video file audio playing only for 3-4 second while audio and video file length was 14 seconds. Please help me why audio not playing completely in the output file.
String OutputPath = path + outputVideo;
try {
FrameGrabber grabber1 = new FFmpegFrameGrabber(videoFile);
FrameGrabber grabber2 = new FFmpegFrameGrabber(audioFile);
grabber1.start();
grabber2.start();
FrameRecorder recorder = new FFmpegFrameRecorder(OutputPath,
grabber1.getImageWidth(), grabber1.getImageHeight(),2);
recorder.setFormat(grabber1.getFormat());
recorder.setVideoQuality(1);
recorder.setFrameRate(grabber1.getFrameRate());
recorder.setSampleRate(grabber2.getSampleRate());
recorder.start();
Frame frame1, frame2;
while ((frame1 = grabber1.grabFrame()) != null &&
(frame2 = grabber2.grabFrame()) != null) {
recorder.record(frame1);
recorder.record(frame2);
}
recorder.stop();
grabber1.stop();
grabber2.stop();
} catch (FrameGrabber.Exception e) {
e.printStackTrace();
} catch (FrameRecorder.Exception e) {
e.printStackTrace();
}
Related
I have created functionality to record video in my app.
When I play a song, that song is recorded with video and a video file is created, similar to a dubshmash application.
Now the problem that I am facing is that other voices such as near by sounds also get recorded. The song file is recorded in the video record screen and I play the song when video recording activity launches.
How can I have my application record only song with video?
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
Is there any solution in audio source set as a speaker , because song sound going through a speaker? if is it another possible way please reply me.
You can record video without audio and merge audio later on using mp4 parser like this:
/*
* #param videoFile path to video file
* #param audioFile path to audiofile
*/
public String mux(String videoFile, String audioFile) {
Movie video = null;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
Movie audio = null;
try {
audio = new MovieCreator().build(audioFile);
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
int size = audio.getTracks().size();
Track audioTrack = audio.getTracks().get((size - 1));
video.addTrack(audioTrack);
Container out = new DefaultMp4Builder().build(video);
File myDirectory = new File(Environment.getExternalStorageDirectory(), "/Folder Name");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
filePath = myDirectory + "/video" + System.currentTimeMillis() + ".mp4";
try {
RandomAccessFile ram = new RandomAccessFile(String.format(filePath), "rw");
FileChannel fc = ram.getChannel();
out.writeContainer(fc);
ram.close();
} catch (IOException e) {
e.printStackTrace();
return null;
}
return filePath;
}
In build.gradle add following dependency
compile 'com.googlecode.mp4parser:isoparser:1.0.5.4'
If you want to working with video then you have to use FFMPEG library
That can be you can work with Video.
That for i have already give answer to How to use ffmpeg in android studio? see this LINK. Go step by step and import in your project
You can use a MediaRecorder without calling setAudio* on it.
remove this line
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
see this link
There is currently no way to directly record android output without "background noise".
Note that this is a security concern to restrict access to other apps audio output, therefore it is very unlikely that it could be achieved directly.
See this answer
I have created functionality to record video in my app.
When I play a song, that song is recorded with video and a video file is created, similar to a dubshmash application.
Now the problem that I am facing is that other voices such as near by sounds also get recorded. The song file is recorded in the video record screen and I play the song when video recording activity launches.
How can I have my application record only song with video?
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
mediaRecorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);
mediaRecorder.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_HIGH));
Is there any solution in audio source set as a speaker , because song sound going through a speaker? if is it another possible way please reply me.
You can record video without audio and merge audio later on using mp4 parser like this:
/*
* #param videoFile path to video file
* #param audioFile path to audiofile
*/
public String mux(String videoFile, String audioFile) {
Movie video = null;
try {
video = new MovieCreator().build(videoFile);
} catch (RuntimeException e) {
e.printStackTrace();
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
Movie audio = null;
try {
audio = new MovieCreator().build(audioFile);
} catch (IOException e) {
e.printStackTrace();
return null;
} catch (NullPointerException e) {
e.printStackTrace();
return null;
}
int size = audio.getTracks().size();
Track audioTrack = audio.getTracks().get((size - 1));
video.addTrack(audioTrack);
Container out = new DefaultMp4Builder().build(video);
File myDirectory = new File(Environment.getExternalStorageDirectory(), "/Folder Name");
if (!myDirectory.exists()) {
myDirectory.mkdirs();
}
filePath = myDirectory + "/video" + System.currentTimeMillis() + ".mp4";
try {
RandomAccessFile ram = new RandomAccessFile(String.format(filePath), "rw");
FileChannel fc = ram.getChannel();
out.writeContainer(fc);
ram.close();
} catch (IOException e) {
e.printStackTrace();
return null;
}
return filePath;
}
In build.gradle add following dependency
compile 'com.googlecode.mp4parser:isoparser:1.0.5.4'
If you want to working with video then you have to use FFMPEG library
That can be you can work with Video.
That for i have already give answer to How to use ffmpeg in android studio? see this LINK. Go step by step and import in your project
You can use a MediaRecorder without calling setAudio* on it.
remove this line
mediaRecorder.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);
see this link
There is currently no way to directly record android output without "background noise".
Note that this is a security concern to restrict access to other apps audio output, therefore it is very unlikely that it could be achieved directly.
See this answer
I'm trying to merge/join two audio files.But the merged file contain only first file audio don't know what is the issue.I think the problem with headers.But don't know how to fix it.
e.g
f1=4kb
f2=3kb
finalFile=7 kb
Size shows merging done but don't know why audio is missed of second file.
Here is my code.
public static void meargeAudio(List<File> filesToMearge)
{
while (filesToMearge.size()!=1){
try {
FileInputStream fistream1 = new FileInputStream(filesToMearge.get(0).getPath()); //(/storage/emulated/0/Audio Notes/1455194356500.mp3) first source file
FileInputStream fistream2 = new FileInputStream(filesToMearge.get(1).getPath());//second source file
SequenceInputStream sistream = new SequenceInputStream(fistream1, fistream2);
FileOutputStream fostream = new FileOutputStream(AppConstrants.APP_FOLDER_PATH+"sss.mp3",true);
int temp;
while ((temp = sistream.read()) != -1) {
// System.out.print( (char) temp ); // to print at DOS prompt
fostream.write(temp); // to write to file
}
fostream.close();
sistream.close();
fistream1.close();
fistream2.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
Help me if you can.
Thanks in advance.
You are right about header problem. Reason why your new audio file only recognized as first audio file because you directly concat both audio files. When MediaPlayer reads your merged audio header (bit rate, how long audio data, etc), it recognizes your first audio file only, because that is what it found first. To properly join 2 audio file, you need to read both their header and decode their audio data, recalculate new length of merged audio data and concat both uncompressed audio data, recompressed it (as MP3 for example) then write it to file.
Solution:
mp4parser can use to append audio files
https://github.com/sannies/mp4parser/issues/155
use:
aspectjrt-1.7.3.jar
My Working Code:
public static void mergAudio(List<File> filesToMearge){
try {
while (filesToMearge.size()!=1) {
String audio1 = filesToMearge.get(0).getPath();
String audio2 = filesToMearge.get(1).getPath();
// FileOutputStream fostream = new FileOutputStream(filesToMearge.get(0).getPath(),true);//destinationfile
String outputVideo = filesToMearge.get(0).getPath();
Movie[] inMovies = new Movie[]{
MovieCreator.build(audio1),
MovieCreator.build(audio2),
};
List<Track> audioTracks = new LinkedList<Track>();
for (Movie m : inMovies) {
for (Track t : m.getTracks()) {
if (t.getHandler().equals("soun")) {
audioTracks.add(t);
}
}
}
File file1 = new File(filesToMearge.get(0).getPath());
boolean deleted = file1.delete();
File file2 = new File(filesToMearge.get(1).getPath());
boolean deleted1 = file2.delete();
Movie result = new Movie();
if (audioTracks.size() > 0) {
result.addTrack(new AppendTrack(audioTracks.toArray(new Track[audioTracks.size()])));
}
Container out = new DefaultMp4Builder().build(result);
out.writeContainer(new FileOutputStream(outputVideo).getChannel());
filesToMearge.add(0, new File(filesToMearge.get(0).getPath()));
filesToMearge.remove(1);
filesToMearge.remove(1);
}
} catch (IOException e) {
e.printStackTrace();
}
}
I am trying to apply Grayscale effect to a video file using JavaCV in android.Everything is working fine but there is no audio present in the output file. Below is the code. Please Help
File file = new File(Environment.getExternalStorageDirectory() + File.separator + "test3.mp4");
FFmpegFrameGrabber frameGrabber = new FFmpegFrameGrabber(file.getAbsolutePath());
FrameRecorder recorder = null;
Log.d("bharat", " Audio channels = " + frameGrabber.getAudioChannels()); // THIS IS RETurnING 0 and not 2
recorder = new FFmpegFrameRecorder("/mnt/sdcard/streaml_t.mp4", 270, 480, frameGrabber.getAudioChannels());
recorder.setVideoCodec(AV_CODEC_ID_H264);
recorder.setFormat("mp4");
recorder.setFrameRate(frameGrabber.getFrameRate());
recorder.setSampleFormat(frameGrabber.getSampleFormat());
recorder.setSampleRate(frameGrabber.getSampleRate());
try {
recorder.start();
frameGrabber.start();
int count = 0;
while (true) {
try {
Frame grabFrame = frameGrabber.grabFrame();
Log.d("bharat:", "frame " + count++);
if (grabFrame == null) {
System.out.println("!!! Failed cvQueryFrame");
break;
}
IplImage frame_copy = cvCreateImage(cvSize(grabFrame.image.width(), grabFrame.image.height()), IPL_DEPTH_8U, 1);
cvCvtColor(grabFrame.image, frame_copy, CV_RGB2GRAY);
grabFrame.image = frame_copy;
recorder.setTimestamp(frameGrabber.getTimestamp());
recorder.record(grabFrame);
} catch (Exception e) {
e.printStackTrace();
}
}
Log.d("bharat:", "frame done");
recorder.stop();
recorder.release();
} catch (Exception e) {
e.printStackTrace();
}
}
P. S : I found that frameGrabber.getAudioChannels() is returning 0 and not 2 (in case it helps)
Once I met a problem due to lack of docs in JavaCV like:
/** Grab next videoframe */
public IplImage grab()
/** Grab next video or audio frame */
public Frame grabFrame()
So you get audio or video frame and then you always try to process this as image. You should check is it audio or video frame before and don't try to call cvCvtColor() for audio.
i m making an application based on voice modulation.
i got success to record and play audio file using media recorder:
now i want to convert my audio file(.3gp) in float array. i have tried a lot but still i dont get any proper solution :
can somebody tell me how to achieve this
my code for recording is
mr.setAudioSource(MediaRecorder.AudioSource.MIC);
mr.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);
mr.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);
if (audiofile == null) {
File sampleDir = Environment.getExternalStorageDirectory();
try {
audiofile = File.createTempFile("Record", ".3gp", sampleDir);
}
catch (IOException e)
{
Log.e("abc","sdcard access error");
return;
}
}
mr.prepare();
mr.start();