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• After a while of being idle, my bot, hosted on CentOS 7, can no longer find ffmpeg and requires a restart

  14 août 2019, par Liam McMillen-Meyers

  So I have a discord bot running with discord.js on a CentOS 7 machine. After a while (I’m not exactly sure how long) it will start throwing errors when I try to play a song, saying it can’t find ffmpeg, except that ffmpeg is installed. After I quickly restart the bot it works fine again.

  I genuinely have no idea what causes this, I have a little experience with CentOS but I’m by no means an experienced user, is it something I did when it installed ? I have tried searching for answers online but I can’t find anything

  Error : FFMPEG not found
  at Function.selectFfmpegCommand (/user/DiscordBot/folder1/node_modules/prism-media/src/transcoders/ffmpeg/Ffmpeg.js:46:13)
  at new FfmpegTranscoder (/user/DiscordBot/folder1/node_modules/prism-media/src/transcoders/ffmpeg/Ffmpeg.js:7:37)
  at new MediaTranscoder (/user/DiscordBot/folder1/node_modules/prism-media/src/transcoders/MediaTranscoder.js:10:19)
  at new Prism (/user/DiscordBot/folder1/node_modules/prism-media/src/Prism.js:5:23)
  at new VoiceConnection (/user/DiscordBot/folder1/node_modules/discord.js/src/client/voice/VoiceConnection.js:46:18)
  at Promise (/user/DiscordBot/folder1/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:63:22)
  at new Promise ()
  at ClientVoiceManager.joinChannel (/user/DiscordBot/folder1/node_modules/discord.js/src/client/voice/ClientVoiceManager.js:45:12)
  at VoiceChannel.join (/user/DiscordBot/folder1/node_modules/discord.js/src/structures/VoiceChannel.js:130:30)
  at execute (/user/DiscordBot/folder1/bot.js:467:40)

• Where can I find my output video file after execution of ffmpeg command

  7 août 2019, par Giri Aakula

  I run this command to capture my screen

  ffmpeg -video_size 1366x768 -framerate 60 -f gdigrab -i desktop -c:v libx264 -crf 0 -preset ultrafast output.mp4

  I didn’t find the output.mp4 file anywhere in my HDD. I checked in the bin folder of ffmpeg it is not there.
  I searched the whole PC I didn’t find it anywhere. Can anyone please help me out to find the file.
  The console output is

  C:\Users\USER>ffmpeg -video_size 1366x768 -framerate 60 -f gdigrab -i desktop -c:v libx264 -crf 0 -preset ultrafast output.mp4
  
  ffmpeg version N-94405-g43891ea8ab Copyright (c) 2000-2019 the FFmpeg developers
  
    built with gcc 9.1.1 (GCC) 20190716
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
  
    libavutil      56. 32.100 / 56. 32.100
  
    libavcodec     58. 55.100 / 58. 55.100
  
    libavformat    58. 30.100 / 58. 30.100
  
    libavdevice    58.  9.100 / 58.  9.100
  
    libavfilter     7. 58.100 /  7. 58.100
  
    libswscale      5.  6.100 /  5.  6.100
  
    libswresample   3.  6.100 /  3.  6.100
  
    libpostproc    55.  6.100 / 55.  6.100
  
  [gdigrab @ 0000020d04e3b280] Capturing whole desktop as 1366x768x32 at (0,0)
  
  [gdigrab @ 0000020d04e3b280] Stream #0: not enough frames to estimate rate; consider increasing probesize
  
  Input #0, gdigrab, from 'desktop':
  
    Duration: N/A, start: 1565202714.962639, bitrate: 2014274 kb/s
  
      Stream #0:0: Video: bmp, bgra, 1366x768, 2014274 kb/s, 60 fps, 1000k tbr, 1000k tbn, 1000k tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
  
  Press [q] to stop, [?] for help
  
  [libx264 @ 0000020d04e3edc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
  
  [libx264 @ 0000020d04e3edc0] profile High 4:4:4 Predictive, level 4.2, 4:4:4, 8-bit
  
  [libx264 @ 0000020d04e3edc0] 264 - core 157 r2970 5493be8 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=0 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=cqp mbtree=0 qp=0
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      encoder         : Lavf58.30.100
  
      Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv444p, 1366x768, q=-1--1, 60 fps, 15360 tbn, 60 tbc
  
      Metadata:
  
        encoder         : Lavc58.55.100 libx264
  
      Side data:
  
        cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
  
  More than 1000 frames duplicated   5632kB time=00:00:19.86 bitrate=2322.4kbits/s dup=981 drop=0 speed=1.01x
  
  More than 10000 frames duplicated 53504kB time=00:03:39.21 bitrate=1999.4kbits/s dup=9978 drop=0 speed=   1x
  
  frame=58906 fps= 60 q=-1.0 Lsize=  234800kB time=00:16:21.75 bitrate=1959.2kbits/s dup=45257 drop=0 speed=   1x
  
  video:234566kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.099927%
  
  [libx264 @ 0000020d04e3edc0] frame I:236   Avg QP: 0.00  size:230265
  
  [libx264 @ 0000020d04e3edc0] frame P:58670 Avg QP: 0.00  size:  3168
  
  [libx264 @ 0000020d04e3edc0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  [libx264 @ 0000020d04e3edc0] mb P  I16..4: 52.9%  0.0%  0.0%  P16..4:  0.0%  0.0%  0.0%  0.0%  0.0%    skip:47.1%
  
  [libx264 @ 0000020d04e3edc0] coded y,u,v intra: 0.2% 0.2% 0.2% inter: 0.0% 0.0% 0.0%
  
  [libx264 @ 0000020d04e3edc0] i16 v,h,dc,p: 100%  0%  0%  0%
  
  [libx264 @ 0000020d04e3edc0] kb/s:1957.25

• 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>