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• java.lang.UnsatisfiedLinkError couldn't find "libavcore.so"runtime error

  12 décembre 2017, par Shivani Vasundhara

  I am using FFmpegExample and have included pre compiled .so files.There are only 2 CPU structure .so files. "armeabi" and "armeabi-v7a".I already added below code in build.gradle file of app module.It didn’t worked for me.

   ndk {
  
          abiFilters "armeabi","armeabi-v7a"
  
      }

  I am getting this error message :

  

• TCL command prompt crashed with the error "ffmpeg.exe stopped working" with tcl version 8.0 and window 7

  9 février 2019, par M. D. P

  TCL command prompt crashed with the error "ffmpeg.exe has stopped working" with tcl version 8.0 and window 7 32 bit. my code file is "live.tcl" which is as follow :

  proc live {} {
  
  
  
  exec ffmpeg -f dshow -s 1280x720 -i "video=Logitech HD Webcam C525" -f sdl2 - >& c:/test/temp.txt &
  
  
  
  }
  
  live

  On the other hand same my code for video capturing i.e "videocapture.tcl" works on the same tclsh command prompt on windows 7. my tcl code for "videocapture.tcl" is :

  proc videocapture {} { 
  
  
  
   exec ffmpeg -f dshow -t 00:00:10 -i "video=Integrated Webcam" c:/test/sample-a.avi >& temp.txt & 
  
   
  
  }
  
  videocapture

  error report is as follow :

  ffmpeg started on 2017-11-22 at 10:56:04
  
  Report written to "ffmpeg-20171122-105604.log"
  
  Command line:
  
  ffmpeg -f dshow -s 1280x720 -i "video=HD Webcam C525" -report -f sdl2 -
  
  ffmpeg version N-89127-g8f4702a93f Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7.2.0 (GCC)
  
    configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libfreetype --enable-libmp3lame --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-cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2 --enable-avisynth --enable-libmfx
  
    libavutil      56.  0.100 / 56.  0.100
  
    libavcodec     58.  3.103 / 58.  3.103
  
    libavformat    58.  2.100 / 58.  2.100
  
    libavdevice    58.  0.100 / 58.  0.100
  
    libavfilter     7.  2.100 /  7.  2.100
  
    libswscale      5.  0.101 /  5.  0.101
  
    libswresample   3.  0.101 /  3.  0.101
  
    libpostproc    55.  0.100 / 55.  0.100
  
  Splitting the commandline.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'dshow'.
  
  Reading option '-s' ... matched as option 's' (set frame size (WxH or abbreviation)) with argument '1280x720'.
  
  Reading option '-i' ... matched as input url with argument 'video=HD Webcam C525'.
  
  Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
  
  Reading option '-f' ... matched as option 'f' (force format) with argument 'sdl2'.
  
  Reading option '-' ... matched as output url.
  
  Finished splitting the commandline.
  
  Parsing a group of options: global .
  
  Applying option report (generate a report) with argument 1.
  
  Successfully parsed a group of options.
  
  Parsing a group of options: input url video=HD Webcam C525.
  
  Applying option f (force format) with argument dshow.
  
  Applying option s (set frame size (WxH or abbreviation)) with argument 1280x720.
  
  Successfully parsed a group of options.
  
  Opening an input file: video=HD Webcam C525.
  
  [dshow @ 03dfca20] Selecting pin Capture on video
  
  dshow passing through packet of type video size  1843200 timestamp 664898760000 orig timestamp 664898643970 graph timestamp 664898760000 diff 116030 HD Webcam C525
  
  [dshow @ 03dfca20] All info found
  
  Input #0, dshow, from 'video=HD Webcam C525':
  
    Duration: N/A, start: 66489.876000, bitrate: N/A
  
  Stream #0:0, 1, 1/10000000: Video: rawvideo (YUY2 / 0x32595559), yuyv422, 1280x720, 10 fps, 10 tbr, 10000k tbn, 10000k tbc
  
  Successfully opened the file.
  
  Parsing a group of options: output url -.
  
  Applying option f (force format) with argument sdl2.
  
  Successfully parsed a group of options.
  
  Opening an output file: -.
  
  Successfully opened the file.
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (rawvideo (native) -> rawvideo (native))
  
  Press [q] to stop, [?] for help
  
  cur_dts is invalid (this is harmless if it occurs once at the start per stream)
  
  [rawvideo @ 03e01660] PACKET SIZE: 1843200, STRIDE: 2560
  
  detected 1 logical cores
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'video_size' to value '1280x720'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'pix_fmt' to value '1'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'time_base' to value '1/10000000'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'pixel_aspect' to value '0/1'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'sws_param' to value 'flags=2'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] Setting 'frame_rate' to value '10000000/1000000'
  
  [graph 0 input from stream 0:0 @ 03e06ae0] w:1280 h:720 pixfmt:yuyv422 tb:1/10000000 fr:10000000/1000000 sar:0/1 sws_param:flags=2
  
  [AVFilterGraph @ 03de2780] query_formats: 3 queried, 2 merged, 0 already done, 0 delayed
  
  dshow passing through packet of type video size  1843200 timestamp 664899770000 orig timestamp 664899643970 graph timestamp 664899770000 diff 126030 HD Webcam C525
  
  dshow passing through packet of type video size  1843200 timestamp 664900890000 orig timestamp 664900643970 graph timestamp 664900890000 diff 246030 HD Webcam C525
  
  dshow passing through packet of type video size  1843200 timestamp 664902040000 orig timestamp 664901643970 graph timestamp 664902040000 diff 396030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664902650000 orig timestamp 664902643970 graph timestamp 664902650000 diff 6030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664903610000 orig timestamp 664903643970 graph timestamp 664903610000 diff -33970 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664904570000 orig timestamp 664904643970 graph timestamp 664904570000 diff -73970 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664905520000 orig timestamp 664905643970 graph timestamp 664905520000 diff -123970 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929720000 orig timestamp 664906643970 graph timestamp 664929720000 diff 23076030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929760000 orig timestamp 664907643970 graph timestamp 664929760000 diff 22116030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929790000 orig timestamp 664908643970 graph timestamp 664929790000 diff 21146030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929820000 orig timestamp 664909643970 graph timestamp 664929820000 diff 20176030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929870000 orig timestamp 664910643970 graph timestamp 664929870000 diff 19226030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929910000 orig timestamp 664911643970 graph timestamp 664929910000 diff 18266030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929940000 orig timestamp 664912643970 graph timestamp 664929940000 diff 17296030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664929980000 orig timestamp 664913643970 graph timestamp 664929980000 diff 16336030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664930030000 orig timestamp 664914643970 graph timestamp 664930030000 diff 15386030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!
  
  dshow passing through packet of type video size  1843200 timestamp 664930070000 orig timestamp 664915643970 graph timestamp 664930070000 diff 14426030 HD Webcam C525
  
  [dshow @ 03dfca20] real-time buffer [HD Webcam C525] [video input] too full or near too full (121% of size: 3041280 [rtbufsize parameter])! frame dropped!

• "Amix" and "adelay" combined leads to "Error while filtering : Cannot allocate memory"

  10 février 2016, par Harald Nordgren

  I was trying to add to audio clips together (using amix) while delaying one of them (with adelay). I used the following command

  ffmpeg -i org/onclassical_demo_luisi_chopin_scherzo_2_31_small-version_ii-ending.wav \
  
  -i org/all_u_had_2_say.wav -filter_complex \
  
  "[1]adelay=1000[del1];[0][del1]amix" out.wav

  and get the following output

  ffmpeg version N-77387-g9d38f06 Copyright (c) 2000-2015 the FFmpeg developers
  
    built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04)
  
    configuration: --enable-libmp3lame --enable-gpl --enable-libx264 --enable-libx265
  
    libavutil      55. 11.100 / 55. 11.100
  
    libavcodec     57. 18.100 / 57. 18.100
  
    libavformat    57. 20.100 / 57. 20.100
  
    libavdevice    57.  0.100 / 57.  0.100
  
    libavfilter     6. 21.100 /  6. 21.100
  
    libswscale      4.  0.100 /  4.  0.100
  
    libswresample   2.  0.101 /  2.  0.101
  
    libpostproc    54.  0.100 / 54.  0.100
  
  Guessed Channel Layout for  Input Stream #0.0 : stereo
  
  Input #0, wav, from 'org/onclassical_demo_luisi_chopin_scherzo_2_31_small-version_ii-ending.wav':
  
    Duration: 00:02:18.26, bitrate: 1411 kb/s
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, 2 channels, s16, 1411 kb/s
  
  Guessed Channel Layout for  Input Stream #1.0 : mono
  
  Input #1, wav, from 'org/all_u_had_2_say.wav':
  
    Duration: 00:00:03.85, bitrate: 88 kb/s
  
      Stream #1:0: Audio: pcm_u8 ([1][0][0][0] / 0x0001), 11025 Hz, 1 channels, u8, 88 kb/s
  
  Output #0, wav, to 'out.wav':
  
    Metadata:
  
      ISFT            : Lavf57.20.100
  
      Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 11025 Hz, mono, s16, 176 kb/s (default)
  
      Metadata:
  
        encoder         : Lavc57.18.100 pcm_s16le
  
  Stream mapping:
  
    Stream #0:0 (pcm_s16le) -> amix:input0
  
    Stream #1:0 (pcm_u8) -> adelay
  
    amix -> Stream #0:0 (pcm_s16le)
  
  Press [q] to stop, [?] for help
  
  Error while filtering: Cannot allocate memory
  
  size=      83kB time=00:00:03.85 bitrate= 176.6kbits/s speed= 213x    
  
  video:0kB audio:83kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.091808%

  Maybe there is some incompatibility between the streams (pcm_s16le, 44100 Hz, 2 channels vs. pcm_u8, 11025 Hz, 1 channel) that need to be handled first, but running only amix works so that doesn’t actually seem to be the case.