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• About java.lang.UnsatisfiedLinkError：org.bytedeco.javacpp.avutil

  7 juin 2017, par Noo Li

  I try to work it out a couple days. But it didn’t work.

  

  Below is full error logs :

  02-19 09:41:31.239 17753-17753/com.superdata.cxim E/art: dlopen("/system/lib64/libdl.so", RTLD_LAZY) failed: dlopen failed: cannot locate symbol "__cxa_finalize" referenced by "/system/lib64/libdl.so"...
  
  02-19 09:41:31.317 17753-17753/com.superdata.cxim E/art: dlopen("/data/app/com.superdata.cxim-1/lib/arm64/libavutil.so", RTLD_LAZY) failed: dlopen failed: "/data/app/com.superdata.cxim-1/lib/arm64/libavutil.so" is 32-bit instead of 64-bit
  
  02-19 09:41:31.359 17753-17753/com.superdata.cxim E/InputEventReceiver: Exception dispatching input event.
  
  02-19 09:41:31.360 17753-17753/com.superdata.cxim E/MessageQueue-JNI: Exception in MessageQueue callback: handleReceiveCallback
  
  02-19 09:41:31.361 17753-17753/com.superdata.cxim E/MessageQueue-JNI: java.lang.UnsatisfiedLinkError: org.bytedeco.javacpp.avutil
  
      at java.lang.Class.classForName(Native Method)
  
      at java.lang.Class.forName(Class.java:309)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:390)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:358)
  
      at org.bytedeco.javacpp.avcodec$AVPacket.<clinit>(avcodec.java:1407)
  
      at com.superdata.cxim.ui.camera.javacv.FFmpegFrameRecorder.<init>(FFmpegFrameRecorder.java:252)
  
      at com.superdata.cxim.ui.camera.recorder.WXLikeVideoRecorder.initRecorder(WXLikeVideoRecorder.java:174)
  
      at com.superdata.cxim.ui.camera.recorder.WXLikeVideoRecorder.startRecording(WXLikeVideoRecorder.java:278)
  
      at com.superdata.cxim.ui.camera.main.NewRecordVideoActivity.startRecord(NewRecordVideoActivity.java:158)
  
      at com.superdata.cxim.ui.camera.main.NewRecordVideoActivity.onTouch(NewRecordVideoActivity.java:234)
  
      at android.view.View.dispatchTouchEvent(View.java:8656)
  
      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2523)
  
      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2114)
  
      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2523)
  
      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2114)
  
      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2523)
  
      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2114)
  
      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2523)
  
      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2114)
  
      at android.view.ViewGroup.dispatchTransformedTouchEvent(ViewGroup.java:2523)
  
      at android.view.ViewGroup.dispatchTouchEvent(ViewGroup.java:2114)
  
      at com.android.internal.policy.impl.PhoneWindow$DecorView.superDispatchTouchEvent(PhoneWindow.java:2511)
  
      at com.android.internal.policy.impl.PhoneWindow.superDispatchTouchEvent(PhoneWindow.java:1807)
  
      at android.app.Activity.dispatchTouchEvent(Activity.java:2841)
  
      at com.android.internal.policy.impl.PhoneWindow$DecorView.dispatchTouchEvent(PhoneWindow.java:2468)
  
      at android.view.View.dispatchPointerEvent(View.java:8873)
  
      at android.view.ViewRootImpl$ViewPostImeInputStage.processPointerEvent(ViewRootImpl.java:4831)
  
      at android.view.ViewRootImpl$ViewPostImeInputStage.onProcess(ViewRootImpl.java:4689)
  
      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4188)
  
      at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4241)
  
      at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4207)
  
      at android.view.ViewRootImpl$AsyncInputStage.forward(ViewRootImpl.java:4344)
  
      at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4215)
  
      at android.view.ViewRootImpl$AsyncInputStage.apply(ViewRootImpl.java:4401)
  
      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4188)
  
      at android.view.ViewRootImpl$InputStage.onDeliverToNext(ViewRootImpl.java:4241)
  
      at android.view.ViewRootImpl$InputStage.forward(ViewRootImpl.java:4207)
  
      at android.view.ViewRootImpl$InputStage.apply(ViewRootImpl.java:4215)
  
      at android.view.ViewRootImpl$InputStage.deliver(ViewRootImpl.java:4188)
  
      at android.view.ViewRootImpl.deliverInputEvent(ViewRootImpl.java:6645)
  
      at android.view.ViewRootImpl.doProcessInputEvents(ViewRootImpl.java:6619)
  
      at android.view.ViewRootImpl.enqueueInputEvent(ViewRootImpl.java:6572)
  
      at android.view.ViewRootImpl$WindowInputEventReceiver.onInputEvent(ViewRootImpl.java:6812)
  
      at android.view.InputEventReceiver.dispatchInputEvent(InputEventReceiver.java:185)
  
      at android.os.MessageQueue.nativePollOnce(Native Method)
  
      at android.os.MessageQueue.next(MessageQueue.java:148)
  
      at android.os.Looper.loop(Looper.java:151)
  
  </init></clinit>

• ffmpeg amr codec non-interleaving

  4 décembre 2018, par Acrobat

  Please tell me how to ffmpeg for speech encoding (wav) in AMR format, disable interleaving ??? I can’t find that flag. By default, the output AMR frame is encoded according to the standard ETSI TS 126 101 https://www.etsi.org/deliver/etsi_ts/126100_126199/126101/11.00.00_60/ts_126101v110000p.pdf

  int main()
  
  {
  
      AVCodec *codec;
  
      AVCodecContext *c = NULL;
  
      AVFrame *frame;
  
      AVPacket *pkt = NULL;
  
     int i, j, k, ret, got_output;
  
     int buffer_size;
  
     FILE *f;
  
     uint16_t *samples;
  
     float t, tincr;
  
  
  
     codec = avcodec_find_encoder(AV_CODEC_ID_AMR_NB);
  
  
  
     if (!codec) {
  
         fprintf(stderr, "Codec not found\n");
  
         exit(1);
  
   }
  
  
  
      c = avcodec_alloc_context3(codec);
  
  
  
  if (!c) {
  
      fprintf(stderr, "Could not allocate audio codec context\n");
  
      exit(1);
  
  }
  
  
  
  c->sample_rate = 8000;
  
  c->bit_rate = 12200;
  
  c->channels = 1;
  
  c->sample_fmt = AV_SAMPLE_FMT_S16;
  
  c->channel_layout = AV_CH_LAYOUT_MONO;
  
  c->av_class->option->flags 
  
  
  
  if (avcodec_open2(c, codec, NULL) < 0) {
  
      fprintf(stderr, "Could not open codec\n");
  
      exit(1);
  
  }
  
  
  
  
  
  pkt = av_packet_alloc();
  
  if (!pkt) {
  
      fprintf(stderr, "could not allocate the packet\n");
  
      exit(1);
  
  }
  
  
  
  frame = av_frame_alloc();
  
  if (!frame) {
  
      fprintf(stderr, "Could not allocate audio frame\n");
  
      exit(1);
  
  }
  
  
  
  frame->nb_samples = c->frame_size;
  
  frame->format = c->sample_fmt;
  
  frame->sample_rate = c->sample_rate;
  
  frame->channel_layout = av_get_default_channel_layout(c->channels);
  
  frame->flags;
  
  
  
  /* setup the data pointers in the AVFrame */
  
  ret = av_frame_get_buffer(frame, 0);
  
  if (ret < 0) {
  
      fprintf(stderr, "Could not allocate audio data buffers\n");
  
      exit(1);
  
  }
  
  
  
  /* encode a single tone sound */
  
  t = 0;
  
  tincr = 2 * M_PI * 440.0 / c->sample_rate;
  
  
  
  FILE *output;
  
  output = fopen("file.amr", "wb");
  
  
  
  for (i = 0; i < 200; i++) {
  
      /* make sure the frame is writable -- makes a copy if the encoder
  
       * kept a reference internally */
  
      ret = av_frame_make_writable(frame);
  
      if (ret < 0)
  
          exit(1);
  
      samples = (uint16_t*)frame->data[0];
  
  
  
      for (j = 0; j < c->frame_size; j++) {
  
          samples[j] = (int)(sin(t) * 10000);
  
          t += tincr;
  
      }
  
  
  
      /* encode the samples */
  
      //frame->flags = AVFrame::flags
  
      ret = avcodec_send_frame(c, frame);
  
      if (ret < 0) {
  
          fprintf(stderr, "Error sending the frame to the encoder\n");
  
          exit(1);
  
      }
  
  
  
  //  while (ret >= 0)
  
      {
  
          ret = avcodec_receive_packet(c, pkt);
  
          if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
  
              return 0;
  
          else if (ret < 0) {
  
              fprintf(stderr, "Error encoding audio frame\n");
  
              exit(1);
  
          }
  
  
  
          fwrite(pkt->data, 1, pkt->size, output);
  
          av_packet_unref(pkt);
  
      }
  
  }
  
  
  
  system("PAUSE");

  }

  i.e. the packat after coding is exposed shifts of bits, according to the table of the standard : enter image description here
  enter image description here how to force the coder, not to use interleaving ???

• Extracting Frames form Video in Android [closed]

  2 juillet 2024, par Muhammad Bilal

  I want to extract frames from video and want to change the frames at that point where i extracted the frames.

  


  I have scene apps like Video Status Maker(https://play.google.com/store/apps/details?id=com.krishna.videostatusmaker), Vidify (https://play.google.com/store/apps/details?id=com.beautifullyrical.videomaker). These apps are using template videos. In my view there is a json file behind the video which exactly tells where the frames should be replaced in the video. I checked out the FFmpeg. It is giving me the frames but as i said there must be file which tells where the frames should be replaced. If anyone Knows how this can be done then please guide me. Thanks