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• avcodec_encode_video2() error -1 : Could not encode video packet - javacv

  7 mars 2016, par 404error

  I want to create a video (mp4) from a set of images and want to add a background sound to it. The background sound can either be recorded or a file may be browsed using a content chooser in android.
  The following code creates the video when a new audio is recorded in 3gp format. However when i browse an audio file (mp3 for example), it shows this error and the video recorded cannot be played.

  the error shown is :

  org.bytedeco.javacv.FrameRecorder$Exception: avcodec_encode_video2() error -1: Could not encode video packet. :at video_settings$Generate.doInBackground(video_settings.java:298)

  the code at video_settings.java:298 is

                      recorder.record(frame2);

  relevant code is :

  protected Void doInBackground(Void... arg0) {
  
  
  
  
  
          try {
  
              FrameGrabber grabber1 = new FFmpegFrameGrabber(paths.get(0));
  
              FrameGrabber grabber2 = new FFmpegFrameGrabber(backgroundSoundPath);
  
              Log.d("hgbj", backgroundSoundPath);
  
              grabber1.start();
  
              grabber2.start();
  
  
  
              FFmpegFrameRecorder recorder = new FFmpegFrameRecorder(video, 320,
  
                      240, grabber2.getAudioChannels());// 320, 240
  
              recorder.setVideoCodec(avcodec.AV_CODEC_ID_MPEG4);//
  
              recorder.setPixelFormat(avutil.AV_PIX_FMT_YUV420P);
  
              recorder.setFormat("mp4");
  
              recorder.setFrameRate(2);
  
              recorder.setVideoBitrate(10 * 1024 * 1024);
  
  
  
              recorder.start();
  
              Frame frame1, frame2;
  
              long timeLength = grabber2.getLengthInTime();
  
              System.out.println("total time = " + timeLength);
  
  
  
  
  
              for (int i = 0; i < paths.size(); i++) {
  
                  // record this frame and then record (numFrames*percentageTime[i]/100) number of frames of the audio.
  
                  frame1 = grabber1.grabFrame();
  
                  long startTime = System.currentTimeMillis();
  
                  recorder.setTimestamp(startTime * 1000);
  
                  recorder.record(frame1);
  
                  boolean first = true;
  
                  // while current time - start time < percentage time * total time / 100: record frame2
  
                  long temp = timeLength * percentageTime[i] / 100000 + startTime;
  
                  while (System.currentTimeMillis() <= temp) {
  
                      frame2 = grabber2.grabFrame();
  
                      if (frame2 == null) break;
  
                      if (first) {
  
                          recorder.setTimestamp(startTime * 1000);
  
                          first = false;
  
                      }
  
                      recorder.record(frame2);
  
                  }
  
                  if (i < paths.size() - 1) {
  
                      grabber1.stop();
  
                      grabber1 = new FFmpegFrameGrabber(paths.get(i + 1));
  
                      grabber1.start();
  
                  }
  
              }

  My question is : if its working for 3gp recorded files why isn’t it working for browsed mp3 files and what should I do to make it work ?
  I have tried changing the codecs, frame height width, video bitrate but dont know any way to determine what bitrate etc is compatible with a given codec/format.
  I am changing the content uri obtained from file browser into the real path so that’s not the issue.

• x86inc : Add debug symbols indicating sizes of compiled functions

  12 octobre 2015, par Geza Lore

  x86inc : Add debug symbols indicating sizes of compiled functions
  Some debuggers/profilers use this metadata to determine which function a
  
  given instruction is in ; without it they get can confused by local labels
  
  (if you haven’t stripped those). On the other hand, some tools are still
  
  confused even with this metadata. e.g. this fixes `gdb`, but not `perf`.
  Currently only implemented for ELF.
  

  • [DH] common/x86/x86inc.asm
  • [DH] tools/checkasm-a.asm

• x86inc : Add debug symbols indicating sizes of compiled functions

  12 octobre 2015, par Geza Lore

  x86inc : Add debug symbols indicating sizes of compiled functions
  Some debuggers/profilers use this metadata to determine which function a
  
  given instruction is in ; without it they get can confused by local labels
  
  (if you haven’t stripped those). On the other hand, some tools are still
  
  confused even with this metadata. e.g. this fixes `gdb`, but not `perf`.
  Currently only implemented for ELF.
  

  • [DH] libavcodec/x86/proresdsp.asm
  • [DH] libavcodec/x86/simple_idct10.asm
  • [DH] libavutil/x86/x86inc.asm
  • [DH] tests/checkasm/x86/checkasm.asm