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• FFmpeg throws exception while process the commands

  4 juin 2014, par Arslan Ahmad

  I am executing commands through process but it always throw this error anyone help me ?

  FFMPEGCommand :

      String[] ffmpegCommand = {"/data/data/com.example.app/ffmpeg", "-r", ""+VIDEO_FRAME_RATE, "-b", "1000", "-vcodec", "mjpeg", "-i", Environment.getExternalStorageDirectory().getPath() + "/com.example.app/frame_%05d.jpg", Environment.getExternalStorageDirectory().getPath() + "/video.mov"};
  
  
  
      ffmpegProcess = new ProcessBuilder(ffmpegCommand).redirectErrorStream(true).start();            
  
  
  
  W/System.err(29844): java.io.IOException: Error running exec(). Command: [/data/data/com.example.app/ffmpeg, -r, 18, -b, 1000, -vcodec, mjpeg, -i, /storage/emulated/0/com.example.app/frame_%05d.jpg, /storage/emulated/0/video.mov] Working Directory: null Environment: [ANDROID_ROOT=/system, EMULATED_STORAGE_SOURCE=/mnt/shell/emulated, LOOP_MOUNTPOINT=/mnt/obb, EMULATED_STORAGE_TARGET=/storage/emulated, ANDROID_BOOTLOGO=1, LD_LIBRARY_PATH=/vendor/lib:/system/lib, EXTERNAL_STORAGE=/storage/emulated/legacy, ANDROID_SOCKET_zygote=11, ANDROID_DATA=/data, PATH=/sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin, ANDROID_ASSETS=/system/app, ASEC_MOUNTPOINT=/mnt/asec, BOOTCLASSPATH=/system/framework/core.jar:/system/framework/conscrypt.jar:/system/framework/okhttp.jar:/system/framework/core-junit.jar:/system/framework/bouncycastle.jar:/system/framework/ext.jar:/system/framework/framework.jar:/system/framework/framework2.jar:/system/framework/telephony-common.jar:/system/framework/voip-common.jar:/system/framework/mms-common.jar:/system/framework/android.policy.jar:/system/framework/services.jar:/system/framework/apache-xml.jar:/system/framework/webviewchromium.jar:/system/framework/oem-services.jar:/system/framework/qcmediaplayer.jar, ANDROID_PROPERTY_WORKSPACE=9,0, ANDROID_STORAGE=/storage]
  
  06-02 12:21:36.660: W/System.err(29844):    at java.lang.ProcessManager.exec(ProcessManager.java:211)
  
  06-02 12:21:36.660: W/System.err(29844):    at java.lang.ProcessBuilder.start(ProcessBuilder.java:195)
  
  06-02 12:21:36.662: W/System.err(29844):    at com.example.app.FFMPEGRecorderActivity$ProcessVideo.doInBackground(FFMPEGRecorderActivity.java:1448)
  
  06-02 12:21:36.662: W/System.err(29844):    at com.example.app.FFMPEGRecorderActivity$ProcessVideo.doInBackground(FFMPEGRecorderActivity.java:1)
  
  06-02 12:21:36.662: W/System.err(29844):    at android.os.AsyncTask$2.call(AsyncTask.java:288)
  
  06-02 12:21:36.663: W/System.err(29844):    at java.util.concurrent.FutureTask.run(FutureTask.java:237)
  
  06-02 12:21:36.663: W/System.err(29844):    at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
  
  06-02 12:21:36.663: W/System.err(29844):    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
  
  06-02 12:21:36.663: W/System.err(29844):    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
  
  06-02 12:21:36.663: W/System.err(29844):    at java.lang.Thread.run(Thread.java:841)
  
  06-02 12:21:36.664: W/System.err(29844): Caused by: java.io.IOException: No such file or directory
  
  06-02 12:21:36.665: W/System.err(29844):    at java.lang.ProcessManager.exec(Native Method)
  
  06-02 12:21:36.666: W/System.err(29844):    at java.lang.ProcessManager.exec(ProcessManager.java:209)
  
  06-02 12:21:36.667: W/System.err(29844):    ... 9 more

• Batch concatenate pairs of videos

  19 février 2021, par dellyice

  I have a directory with 1000+ video files. I'd like to concatenate them two-by-two.

  


  An alphabetical ordering of the files give the desired pairs, e.g., the input files

  


   filename_1.mp4
 filename_2.mp4
 filename_3.mp4
 filename_4.mp4
 ...


  


  should result in output files

  


   filename_1-2.mp4
 filename_3-4.mp4
 ...


  


  They input files all have the same dimensions and formats.

  


  How can I write a batch script invoking ffmpeg to achieve this ?

  


• FFmpeg stream stops after a certain time

  7 avril 2021, par Anarno

  We have a little Nodejs app, which starts a stream process, with a child_process.spawn. On the client-side, we have an HTML5-canvas element, which records the video data new MediaRecorder(canvas.captureStream(30), config), then this client sends its data to our Nodejs server over a WebSocket connection. We using FFmpeg for video encoding and decoding, then we send the data to our 3-rd party service (MUX), which accepts the stream and broadcasts them. Sadly the process continuously loses its fps, and after in general 1 minute, stops with an interesting error code. (when we save the video result locally instead of streaming via rtmps, it works perfectly.

  


  *The whole system is in docker.

  


  The error :

  


   stderr: [tls @ 0x7f998e7bca40] Error in the pull function.&#xA;Our_app_logs:    | av_interleaved_write_frame(): I/O error    &#xA;Our_app_logs:    | [flv @ 0x7f998eeb1680] Failed to update header with correct duration.&#xA;Our_app_logs:    | [flv @ 0x7f998eeb1680] Failed to update header with correct filesize.&#xA;Our_app_logs:    | Error writing trailer of rtmps://global-live.mux.com/app/94e85197-78a3-f092-3437-03d93aba74e0: I/O error&#xA;Our_app_logs:    |  <buffer 5b="5b" 74="74" 6c="6c" 73="73" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 38="38" 65="65" 62="62" 63="63" 61="61" 34="34" 5d="5d" 45="45" 72="72" 6f="6f" 69="69" 6e="6e" 68="68" 70="70" 75="75" 2e="2e">&#xA;Our_app_logs:    | stderr: frame= 1478 fps= 25 q=23.0 Lsize=  &#xA;   402kB time=00:01:02.89 bitrate=  52.4kbits/s speed=1.05x&#xA;Our_app_logs:    | video:369kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 9.034639%&#xA;Our_app_logs:    |  <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 3d="3d" 20="20" 31="31" 34="34" 37="37" 38="38" 70="70" 73="73" 32="32" 35="35" 71="71" 33="33" 2e="2e" 30="30" 4c="4c" 69="69" 7a="7a" 6b="6b" 42="42" 74="74">&#xA;Our_app_logs:    | stderr: [tls @ 0x7f998e7bca40]  <buffer 5b="5b" 6c="6c" 73="73" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 38="38" 65="65" 62="62" 63="63" 61="61" 34="34" 5d="5d">    &#xA;Our_app_logs:    | stderr: The specified session has been invalidated for some reason.&#xA;Our_app_logs:    |  <buffer 54="54" 68="68" 65="65" 20="20" 73="73" 70="70" 63="63" 69="69" 66="66" 64="64" 6f="6f" 6e="6e" 61="61" 62="62" 76="76" 6c="6c" 74="74" 72="72" 6d="6d">&#xA;Our_app_logs:    | stderr:     Last message repeated 1 times  &#xA;Our_app_logs:    |  <buffer 20="20" 4c="4c" 61="61" 73="73" 74="74" 6d="6d" 65="65" 67="67" 72="72" 70="70" 64="64" 31="31" 69="69" 0a="0a">  &#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: frame I:13    Avg QP: 5.39  size:  &#xA;2478&#xA;Our_app_logs:    |  <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 20="20" 49="49" 3a="3a" 31="31" 33="33" 41="41" 76="76" 67="67" 51="51" 50="50" 35="35" 2e="2e" 39="39" 73="73" 69="69" 7a="7a" 32="32" 34="34" 37="37" 38="38" 0a="0a">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: frame P:1465  Avg QP:13.51  size:  &#xA; 235&#xA;Our_app_logs:    |  <buffer 66="66" 72="72" 61="61" 6d="6d" 65="65" 20="20" 50="50" 3a="3a" 31="31" 34="34" 36="36" 35="35" 41="41" 76="76" 67="67" 51="51" 33="33" 2e="2e" 73="73" 69="69" 7a="7a" 32="32" 0a="0a">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: mb I  I16..4: 99.2%  0.1%  0.7%    &#xA;Our_app_logs:    |  <buffer 6d="6d" 62="62" 20="20" 49="49" 31="31" 36="36" 2e="2e" 34="34" 3a="3a" 39="39" 32="32" 25="25" 30="30" 37="37" 0a="0a">        &#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: mb P  I16..4:  0.3%  0.0%  0.0%  P16..4:  0.1%  0.0%  0.0%  0.0%  0.0%    skip:99.6%&#xA;Our_app_logs:    |  <buffer 6d="6d" 62="62" 20="20" 50="50" 49="49" 31="31" 36="36" 2e="2e" 34="34" 3a="3a" 30="30" 33="33" 25="25">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: 8x8 transform intra:0.3% inter:17.3%&#xA;Our_app_logs:    |  <buffer 38="38" 78="78" 20="20" 74="74" 72="72" 61="61" 6e="6e" 73="73" 66="66" 6f="6f" 6d="6d" 69="69" 3a="3a" 30="30" 2e="2e" 33="33" 25="25" 65="65" 31="31" 37="37" 0a="0a">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: coded y,uvDC,uvAC intra: 1.4% 6.9% &#xA;4.7% inter: 0.0% 0.0% 0.0%&#xA;Our_app_logs:    |  <buffer 63="63" 6f="6f" 64="64" 65="65" 20="20" 79="79" 2c="2c" 75="75" 76="76" 44="44" 43="43" 41="41" 69="69" 6e="6e" 74="74" 72="72" 61="61" 3a="3a" 31="31" 2e="2e" 34="34" 25="25" 36="36" 39="39" 37="37" 30="30">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: i16 v,h,dc,p: 90%  5%  5%  0%&#xA;Our_app_logs:    |  <buffer 69="69" 31="31" 36="36" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 70="70" 3a="3a" 39="39" 30="30" 25="25" 35="35" 0a="0a">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% &#xA;18% 51%  6%  0%  0%  0%  0%  3%&#xA;Our_app_logs:    |  <buffer 69="69" 38="38" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 6c="6c" 72="72" 75="75" 3a="3a" 32="32" 33="33" 25="25" 31="31" 35="35" 36="36" 30="30">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% &#xA;25% 40%  0%  0%  0%  0%  0%  0%&#xA;Our_app_logs:    |  <buffer 69="69" 34="34" 20="20" 76="76" 2c="2c" 68="68" 64="64" 63="63" 6c="6c" 72="72" 75="75" 3a="3a" 33="33" 25="25" 32="32" 35="35" 30="30">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: i8c dc,h,v,p: 86%  7%  6%  0%&#xA;Our_app_logs:    |  <buffer 69="69" 38="38" 63="63" 20="20" 64="64" 2c="2c" 68="68" 76="76" 70="70" 3a="3a" 36="36" 25="25" 37="37" 30="30" 0a="0a">&#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: Weighted P-Frames: Y:0.1% UV:0.1%  &#xA;Our_app_logs:    |  <buffer 57="57" 65="65" 69="69" 67="67" 68="68" 74="74" 64="64" 20="20" 50="50" 2d="2d" 46="46" 72="72" 61="61" 6d="6d" 73="73" 3a="3a" 59="59" 30="30" 2e="2e" 31="31" 25="25" 55="55" 56="56" 0a="0a">  &#xA;Our_app_logs:    | stderr: [libx264 @ 0x7f998e790080]  <buffer 5b="5b" 6c="6c" 69="69" 62="62" 78="78" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 37="37" 66="66" 39="39" 38="38" 65="65" 5d="5d">&#xA;Our_app_logs:    | stderr: kb/s:2041.23&#xA;Our_app_logs:    |  <buffer 6b="6b" 62="62" 2f="2f" 73="73" 3a="3a" 32="32" 30="30" 34="34" 31="31" 2e="2e" 33="33" 0a="0a">&#xA;Our_app_logs:    | stderr: Conversion failed!&#xA;Our_app_logs:    |  <buffer 43="43" 6f="6f" 6e="6e" 76="76" 65="65" 72="72" 73="73" 69="69" 20="20" 66="66" 61="61" 6c="6c" 64="64" 21="21" 0a="0a">&#xA;Our_app_logs:    | close, code: 1, signal: null&#xA;Our_app_logs:    | from react application: 14203&#xA;Our_app_logs:    | Status ok...&#xA;Our_app_logs:    | Data ok...&#xA;Our_app_logs:    | FFmpeg ok...&#xA;Our_app_logs:    | Writeable ok... <buffer c4="c4" 81="81" 0e="0e" 11="11" 00="00" 01="01" 61="61" c7="c7" 80="80" 5b="5b" b6="b6" 72="72" 03="03" bc="bc" b7="b7" de="de" 59="59" 7f="7f" 3c="3c" 27="27" b3="b3" 87="87" b2="b2" e6="e6" 84="84" d0="d0" f0="f0" 02="02" 2d="2d" c0="c0" 08="08" 70="70"> undefined&#xA;Our_app_logs:    | stderr: ffmpeg version 4.2.4 Copyright (c) &#xA;2000-2020 the FFmpeg developers&#xA;Our_app_logs:    |   built with gcc 9.2.0 (Alpine 9.2.0)&#xA;Our_app_logs:    |   configuration: --prefix=/usr --enable-avresample --enable-avfilter --enable-gnutls --enable-gpl --enable-libass --enable-libmp3lame --enable-libvorbis --enable-libvpx --enable-libxvid --enable-libx264 --enable-libx265 --enable-libtheora --enable-libv4l2 --enable-postproc --enable-pic --enable-pthreads --enable-shared --enable-libxcb --disable-stripping --disable-static --disable-librtmp --enable-vaapi --enable-vdpau --enable-libopus --disable-debug&#xA;Our_app_logs:    |  <buffer 66="66" 6d="6d" 70="70" 65="65" 67="67" 20="20" 76="76" 72="72" 73="73" 69="69" 6f="6f" 6e="6e" 34="34" 2e="2e" 32="32" 43="43" 79="79" 68="68" 74="74" 28="28" 63="63" 29="29" 30="30" 2d="2d" 46="46">&#xA;Our_app_logs:    | stderr:   libavutil      56. 31.100 / 56. 31.100&#xA;Our_app_logs:    |   libavcodec     58. 54.100 / 58. 54.100   &#xA;Our_app_logs:    |   libavformat    58. 29.100 / 58. 29.100&#xA;Our_app_logs:    |   libavdevice    58.  8.100 / 58.  8.100&#xA;Our_app_logs:    |   libavfilter     7. 57.100 /  7. 57.100&#xA;Our_app_logs:    |   libavresample   4.  0.  0 /  4.  0.  0   &#xA;Our_app_logs:    |   libswscale      5.  5.100 /  5.  5.100   &#xA;Our_app_logs:    |   libswresample   3.  5.100 /  3.  5.100   &#xA;Our_app_logs:    |   libpostproc    55.  5.100 / 55.  5.100   &#xA;Our_app_logs:    |  <buffer 20="20" 6c="6c" 69="69" 62="62" 61="61" 76="76" 75="75" 74="74" 35="35" 36="36" 2e="2e" 33="33" 31="31" 30="30" 2f="2f" 0a="0a" 63="63" 6f="6f">&#xA;Our_app_logs:    | stderr: [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    |     Last message repeated 4 times&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    |  <buffer 5b="5b" 68="68" 32="32" 36="36" 34="34" 20="20" 40="40" 30="30" 78="78" 37="37" 66="66" 39="39" 5d="5d" 6e="6e" 6f="6f" 2d="2d" 65="65" 69="69" 73="73" 74="74" 67="67" 50="50" 53="53" 31="31" 72="72">&#xA;Our_app_logs:    | stderr: [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    |     Last message repeated 5 times&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_headerOur_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] non-existing PPS 14 referenced&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] decode_slice_header error&#xA;Our_app_logs:    | [h264 @ 0x7f299f44f600] no frame!&#xA;&#xA;</buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer></buffer>

  


  The FFmpeg config :

  


  const FFMPEG_CONFIG = [
  '-i',
  '-',

  // video codec config: low latency, adaptive bitrate
  //   '-vcodec',
  //   'copy',
  '-c:v',
  'libx264',
  '-preset',
  'veryfast',
  '-tune',
  'zerolatency',

  // audio codec config: sampling frequency (11025, 22050, 44100), bitrate 64 kbits
  '-c:a',
  'aac',
  '-ar',
  '44100',
  '-b:a',
  '64k',

  //force to overwrite
  '-y',

  // used for audio sync
  '-use_wallclock_as_timestamps',
  '1',
  '-async',
  '1',

  //'-filter_complex', 'aresample=44100', // resample audio to 44100Hz, needed if input is not 44100
  //'-strict', 'experimental',
  '-bufsize',
  '1000',
  '-f',
  'flv',
];


  


  The process :

  


  const process = child_process.spawn('ffmpeg', [
      ...FFMPEG_CONFIG,
      //   'local.bin',
      url,
    ]);
 
    process.stderr.on('data', data => {
      console.log(`stderr: ${data}`, data);
    });

    process.stdin.on('error', e => {
      console.log('FFmpeg STDIN Error', e);
    });

    process.on('error', err => console.log(err));

    process.on('close', (code, signal) => {
      console.log(`close, code: ${code}, signal: ${signal}`);
    });


  


  The writing :

  


  if (!Buffer.isBuffer(data)) return;
if (!process.stdin.writable) return;
process.stdin.write(data);