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• Failed Concatenate after segmentation with time_timestamps 1

  30 juillet 2019, par user2190197

  I’m trying strip video file to segments, and concatenate some parts :
  code for strip video :

  -y -i $dirs[input] -c copy -map 0 -segment_time 0.001 -f segment -reset_timestamps 1 $dirs[process_dir]%d.mp4

  Concat :

  -y -safe 0 -f concat -i $temp_file -c copy \"$dirs[output]\"

  Where $temp_file is correct .txt file ;

  Sometimes ffmpeg ruins final video length. There’s log :

  ffmpeg version 3.3.4-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 6.4.0 (Debian 6.4.0-4) 20170820
  
    configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gray --enable-libfribidi --enable-libass --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-librtmp --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg
  
    libavutil      55. 58.100 / 55. 58.100
  
    libavcodec     57. 89.100 / 57. 89.100
  
    libavformat    57. 71.100 / 57. 71.100
  
    libavdevice    57.  6.100 / 57.  6.100
  
    libavfilter     6. 82.100 /  6. 82.100
  
    libswscale      4.  6.100 /  4.  6.100
  
    libswresample   2.  7.100 /  2.  7.100
  
    libpostproc    54.  5.100 / 54.  5.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3fa57a0] Auto-inserting h264_mp4toannexb bitstream filter
  
  Input #0, concat, from '/var/www/vhost.d/ffmpeg/htdocs/output_videos/0/227/2019-07-30-09-29-36.txt':
  
    Duration: N/A, start: -0.046440, bitrate: 1822 kb/s
  
      Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1370x720 [SAR 2056:2055 DAR 257:135], 1757 kb/s, 29.95 fps, 29.95 tbr, 19168 tbn, 59.90 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 64 kb/s
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Output #0, mp4, to '/var/www/vhost.d/ffmpeg/htdocs/output_videos/0/227/227_45.mp4':
  
    Metadata:
  
      encoder         : Lavf57.71.100
  
      Stream #0:0(und): Video: h264 (High) ([33][0][0][0] / 0x0021), yuv420p, 1370x720 [SAR 2056:2055 DAR 257:135], q=2-31, 1757 kb/s, 29.95 fps, 29.95 tbr, 19168 tbn, 19168 tbc
  
      Metadata:
  
        handler_name    : VideoHandler
  
      Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 64 kb/s
  
      Metadata:
  
        handler_name    : SoundHandler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (copy)
  
  Press [q] to stop, [?] for help
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3fa57a0] Auto-inserting h264_mp4toannexb bitstream filter
  
      Last message repeated 19 times
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3fae700] Auto-inserting h264_mp4toannexb bitstream filter
  
      Last message repeated 2 times
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x3fa57a0] Auto-inserting h264_mp4toannexb bitstream filter
  
      Last message repeated 15 times
  
  [mp4 @ 0x3fe61a0] Non-monotonous DTS in output stream 0:0; previous: 2156122, current: 2156089; changing to 2156123. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x3fe61a0] Non-monotonous DTS in output stream 0:1; previous: 4961225, current: 4960677; changing to 4961226. This may result in incorrect timestamps in the output file.
  
  [mp4 @ 0x3fe61a0] Application provided duration: 189408058806 is invalid
  
  av_interleaved_write_frame(): Invalid argument
  
  frame= 3364 fps=0.0 q=-1.0 Lsize=   26195kB time=00:01:52.51 bitrate=1907.2kbits/s speed= 237x
  
  video:25192kB audio:884kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.457517%
  
  Conversion failed!

  If i remove reset_timestamps 1, video duration would be correct, but the video will have bugs, for example, some parts will slow down

• ffmpeg 4.1.4 wav to mp3 error who can help me

  23 août 2019, par yang jia

  [swscaler @ 0xc946d000] deprecated pixel format used, make sure you did set range correctly

  [mp3 @ 0xc9621600] Frame rate very high for a muxer not efficiently supporting it.

  Please consider specifying a lower framerate, a different muxer or -vsync 2

  [auto_resampler_0 @ 0xd8e73be0] [SWR @ 0xc8058000] Output channel layout ’6 channels (FLC+BC+SL+SR+TC+TFL)’ is not supported

  [auto_resampler_0 @ 0xd8e73be0] Failed to configure output pad on auto_resampler_0

  Error reinitializing filters !

  Failed to inject frame into filter network : Invalid argument
  Error while processing the decoded data for stream #0:0
  --------- beginning of crash
  2019-02-26 16:04:58.368 27737-27737/com.blplayer.jbl.blplayer A/libc : Fatal signal 7 (SIGBUS), code 1, fault addr 0xc5ca in tid 27737 (er.jbl.blplayer)

  cmd

  ffmpeg -i test.wav -acodec libmp3lame -ar 8000 -ac 2 -y wav2mp3.mp3

   ![enter image description here]this is the log(https://i.stack.imgur.com/Kjs1Q.png)

• syncing a video file with audio using ffmpeg is returning a video without audio

  31 juillet 2019, par abbood

  When I attempt to sync a .mov video with an .m4a audio file using ffmpeg like so

  ffmpeg -ss 00:00:2 -i test.m4a  -i test.mov -c:v copy -c:a aac -strict experimental output.mp4

  it works like a charm. But right now I’ve recorded a usability test video using adobe XD, and it returned an .mp4 (MPEG-4) video and I manually recorded the audio using quicktimre returning a .m4a audio file.

  Trying to merge them using ffmpeg is returning a video without any audio :

  ffmpeg -i video.mp4  -i audio.m4a -c:v copy -c:a aac -strict experimental output.mp4
  
  ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
  
    built with Apple LLVM version 10.0.0 (clang-1000.11.45.5)
  
    configuration: --prefix=/usr/local/Cellar/ffmpeg/4.1_1 --enable-shared --enable-pthreads --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gpl --enable-libmp3lame --enable-libopus --enable-libsnappy --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-opencl --enable-videotoolbox
  
    libavutil      56. 22.100 / 56. 22.100
  
    libavcodec     58. 35.100 / 58. 35.100
  
    libavformat    58. 20.100 / 58. 20.100
  
    libavdevice    58.  5.100 / 58.  5.100
  
    libavfilter     7. 40.101 /  7. 40.101
  
    libavresample   4.  0.  0 /  4.  0.  0
  
    libswscale      5.  3.100 /  5.  3.100
  
    libswresample   3.  3.100 /  3.  3.100
  
    libpostproc    55.  3.100 / 55.  3.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 0
  
      compatible_brands: qt
  
      creation_time   : 2019-07-31T14:43:18.000000Z
  
      com.apple.quicktime.make: Apple
  
      com.apple.quicktime.model: MacBookPro15,1
  
      com.apple.quicktime.software: Mac OS X 10.14.5 (18F203)
  
      com.apple.quicktime.creationdate: 2019-07-31T17:43:17+0300
  
    Duration: 00:03:46.05, start: 0.000000, bitrate: 498 kb/s
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 374x812 [SAR 1:1 DAR 187:406], 390 kb/s, 60 fps, 60 tbr, 6k tbn, 12k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-07-31T14:43:18.000000Z
  
        handler_name    : Core Media Video
  
        encoder         : H.264
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, stereo, fltp, 0 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-07-31T14:43:18.000000Z
  
        handler_name    : Core Media Audio
  
  Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'audio.m4a':
  
    Metadata:
  
      major_brand     : M4A
  
      minor_version   : 0
  
      compatible_brands: M4A mp42isom
  
      creation_time   : 2019-07-31T14:47:26.000000Z
  
      iTunSMPB        :  00000000 00000840 00000000 00000000009DFBC0 00000000 00000000 00000000 00000000 00000000 00000000 00000000 00000000
  
    Duration: 00:03:54.78, start: 0.047891, bitrate: 225 kb/s
  
      Stream #1:0(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 224 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-07-31T14:47:26.000000Z
  
        handler_name    : Core Media Audio
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (copy)
  
    Stream #0:1 -> #0:1 (aac (native) -> aac (native))
  
  Press [q] to stop, [?] for help
  
  [aac @ 0x7fb5a4806a00] Too many bits 16384.000000 > 12288 per frame requested, clamping to max
  
  Output #0, mp4, to 'output.mp4':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 0
  
      compatible_brands: qt
  
      com.apple.quicktime.creationdate: 2019-07-31T17:43:17+0300
  
      com.apple.quicktime.make: Apple
  
      com.apple.quicktime.model: MacBookPro15,1
  
      com.apple.quicktime.software: Mac OS X 10.14.5 (18F203)
  
      encoder         : Lavf58.20.100
  
      Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 374x812 [SAR 1:1 DAR 187:406], q=2-31, 390 kb/s, 60 fps, 60 tbr, 12k tbn, 6k tbc (default)
  
      Metadata:
  
        creation_time   : 2019-07-31T14:43:18.000000Z
  
        handler_name    : Core Media Video
  
        encoder         : H.264
  
      Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 8000 Hz, stereo, fltp, 96 kb/s (default)
  
      Metadata:
  
        creation_time   : 2019-07-31T14:43:18.000000Z
  
        handler_name    : Core Media Audio
  
        encoder         : Lavc58.35.100 aac
  
  frame=13563 fps=0.0 q=-1.0 Lsize=   10903kB time=00:03:46.08 bitrate= 395.1kbits/s speed= 916x
  
  video:10699kB audio:10kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.805767%

  How can I get around this limitation ?