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• lavf/utils : fix error like "offset 0x1f85 : partial file"

  7 août 2019, par tomajsjiang

  lavf/utils : fix error like "offset 0x1f85 : partial file"
  fix error like "offset 0x1f85 : partial file", the root cause is when
  
  read the mp4 file from http, and the moov in the end of the mp4 file,
  
  reconfig the buffer will drop some data.
  Signed-off-by : Jun Zhao <barryjzhao@tencent.com>
  
  Signed-off-by : Zhongxing Jiang <tomajsjiang@tencent.com>
  

  • [DH] libavformat/utils.c

• couldn't find "libjniavutil.so" in my android studio

  30 juillet 2019, par Dharmik Ghori

  While initializing FFmpegFrameRecorder I’m getting crash in android PIE(9.0) and marshmallow as well.

  Below I mentioned where exactly I’m getting a crash and logCat as well of a crash.

  Can any one of you please help me to sort it out.?

    mVideo = CameraUtil.getOutputMediaFile(recordedTime, CameraUtil.MEDIA_TYPE_VIDEO);
  
      Log.i(LOG_TAG, "Output Video: " + mVideo);
  
      mFrameRecorder = new FFmpegFrameRecorder(mVideo, videoWidth, videoHeight, 1);
  
      mFrameRecorder.setFormat("mp4");
  
      mFrameRecorder.setSampleRate(sampleAudioRateInHz);
  
      mFrameRecorder.setFrameRate(frameRate);
  
      mFrameRecorder.setGopSize(60);

  Here I mentioned my LogCat File

  Caused by: java.lang.NoClassDefFoundError: org.bytedeco.javacpp.avutil
  
      at java.lang.Class.classForName(Native Method)
  
      at java.lang.Class.forName(Class.java:453)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:585)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:530)
  
      at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1694)
  
      at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:152)
  
      at org.bytedeco.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:132)
  
      at com.starcam.test1.activities.EventLiveFrame3VideoQuestion.initRecorder(EventLiveFrame3VideoQuestion.java:606)
  
      at com.starcam.test1.activities.EventLiveFrame3VideoQuestion.access$800(EventLiveFrame3VideoQuestion.java:83)
  
      at com.starcam.test1.activities.EventLiveFrame3VideoQuestion$9.doInBackground(EventLiveFrame3VideoQuestion.java:458)
  
      at com.starcam.test1.activities.EventLiveFrame3VideoQuestion$9.doInBackground(EventLiveFrame3VideoQuestion.java:453)
  
      at android.os.AsyncTask$2.call(AsyncTask.java:333)
  
      at java.util.concurrent.FutureTask.run(FutureTask.java:266)
  
      at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245) 
  
      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
  
      at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
  
      at java.lang.Thread.run(Thread.java:764) 
  
   Caused by: java.lang.UnsatisfiedLinkError: dalvik.system.PathClassLoader[DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/com.starcam.test1-Tndkf7jqvwcCdq5w3dj8CQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.starcam.test1-Tndkf7jqvwcCdq5w3dj8CQ==/lib/arm64, /data/app/com.starcam.test1-Tndkf7jqvwcCdq5w3dj8CQ==/base.apk!/lib/arm64-v8a, /system/lib64, /system/vendor/lib64]]] couldn't find "libjniavutil.so"
  
  </init></init></clinit>

• ffmpeg cmd not running through nodejs getting error like error initializing filter \'select\' with args \'"not(mod(n\'\n']"

  22 juillet 2019, par Nileshdeora1122

  hello everyone i need your help i’m working on ffmpeg as following by blog post https://contextneutral.com/snippet/how-to-run-ffmpeg-from-inside-of-nodejs
  now i’m doing the same my ffmpeg command running successfully on the terminal but not working with nodejs.
  basicaly i’m trying to run :

  "ffmpeg -loglevel panic -y -i "video.mp4" -frames 1 -q:v 1 -vf "select=not(mod(n\,40)),scale=-1:120,tile=100x1" video_preview.jpg "

  my nodejs code looklike this :

  let ffmpeg = spawn(
  
  'ffmpeg', [
  
  '-i', `${ Inputvideofile }`,
  
  '-y', 
  
  '-frames',1,
  
  '-q:v', '1', 
  
  '-vf', ' "select=not(mod(n\,120)),scale=-1:40,tile=10x1 "  ',
  
  `${ outpputImgstripe }`
  
  ]);
  
  ffmpeg.on('exit', (statusCode) => {
  
      console.log(statusCode)
  
    if (statusCode === 0) {
  
       console.log('conversion successful')
  
    }
  
  })
  
  ffmpeg
  
    .stderr
  
    .on('data', (err) => {
  
      console.log('err:', new String(err))
  
    })
  
  
  
  module.exports = router;

  The error im getting is :

  Error initializing filter \'select\' with args \'"not(mod(n\'\n']
  
  err: [String: 'Error reinitializing filters!\nFailed to inject frame into filter network: Invalid argument\nError while processing the decoded data for stream #0:0\n']
  
  err: [String: 'Conversion failed!\n']
  
  1

  i think the error is :

  '-vf', ' "select=not(mod(n\,120)),scale=-1:40,tile=10x1 "  ',

  but don’t know how to solve pls help me