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• ffmpeg : xstack doesn't work when inputs are scaled to certain dimensions

  4 juin 2020, par dfriend21

  I'm using ffmpeg to create a mosaic of videos using the xstack filter. The input videos may come in varying dimensions, so I'm using the scale filter to scale them beforehand, and I'm using the force_original_aspect_ratio option and then the pad filter to keep the original aspect ratios of each video and add black bars to the sides to make each video have the correct dimensions.

  



  I have a command that's working - however, it's inconsistent. For some dimensions it works, while for others it doesn't.

  



  I'm using the fluent-ffmpeg Node.js module to call ffmpeg from Node.js. To do this, I'm passing an array of strings to the complexFilter() function.

  



  The following strings for the complex filter works :

  



  "[0:v]scale=400:250:force_original_aspect_ratio=decrease,pad=400:250:(ow-iw)/2:(oh-ih)/2 [s0]"
"[1:v]scale=400:250:force_original_aspect_ratio=decrease,pad=400:250:(ow-iw)/2:(oh-ih)/2 [s1]"
"[s0][s1]xstack=inputs=2:fill='black':layout=0_0|w0_0[v]"
"[0:a][1:a]amix=inputs=2[a]"


  



  However, if I change the output dimensions of each video to be 400:225 instead of 400:250 it fails.

  



  "[0:v]scale=400:225:force_original_aspect_ratio=decrease,pad=400:225:(ow-iw)/2:(oh-ih)/2 [s0]"
"[1:v]scale=400:225:force_original_aspect_ratio=decrease,pad=400:225:(ow-iw)/2:(oh-ih)/2 [s1]"
"[s0][s1]xstack=inputs=2:fill='black':layout=0_0|w0_0[v]"
"[0:a][1:a]amix=inputs=2[a]"


  



  The following error is given :

  



  An error occurred: ffmpeg exited with code 1: Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #1:1
Conversion failed!


  



  If it's relevant, the first video has dimensions of 1280x720 while the second video has dimensions of 320x240.

  



  Anyone know why one set of dimensions works while the other doesn't ?

  



  EDIT : Here is the full ffmpeg log for when it fails :

  



  ffmpeg version git-2020-05-13-b12b053 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200513
  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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 45.100 / 56. 45.100
  libavcodec     58. 84.100 / 58. 84.100
  libavformat    58. 43.100 / 58. 43.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 80.100 /  7. 80.100
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/Users/user_name/Desktop/vids/vid1.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp41isom
    creation_time   : 2020-05-21T15:52:20.000000Z
  Duration: 00:00:10.76, start: 0.000000, bitrate: 8385 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuvj420p(pc), 1280x720 [SAR 1:1 DAR 16:9], 8237 kb/s, 29.99 fps, 30 tbr, 30k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2020-05-21T15:52:20.000000Z
      handler_name    : VideoHandler
      encoder         : AVC Coding
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 165 kb/s (default)
    Metadata:
      creation_time   : 2020-05-21T15:52:20.000000Z
      handler_name    : SoundHandler
Input #1, mov,mp4,m4a,3gp,3g2,mj2, from 'C:/Users/user_name/Desktop/vids/vid2.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp41isom
    creation_time   : 2020-05-21T15:54:37.000000Z
  Duration: 00:00:11.01, start: 0.000000, bitrate: 836 kb/s
    Stream #1:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuvj420p(pc), 320x240 [SAR 1:1 DAR 4:3], 669 kb/s, 29.88 fps, 30 tbr, 30k tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2020-05-21T15:54:37.000000Z
      handler_name    : VideoHandler
      encoder         : AVC Coding
    Stream #1:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 163 kb/s (default)
    Metadata:
      creation_time   : 2020-05-21T15:54:37.000000Z
      handler_name    : SoundHandler
Stream mapping:
  Stream #0:0 (h264) -> scale
  Stream #0:1 (aac) -> amix:input0
  Stream #1:0 (h264) -> scale
  Stream #1:1 (aac) -> amix:input1
  xstack -> Stream #0:0 (libx264)
  amix -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
[swscaler @ 000001343fefc200] deprecated pixel format used, make sure you did set range correctly
[Parsed_pad_1 @ 000001343f8dc3c0] Padded dimensions cannot be smaller than input dimensions.
[Parsed_pad_1 @ 000001343f8dc3c0] Failed to configure input pad on Parsed_pad_1
Error reinitializing filters!
Failed to inject frame into filter network: Invalid argument
Error while processing the decoded data for stream #1:1
Conversion failed!

Done in 0.66s.


  


• can i speedup text watermarking on ffmpeg ?

  3 juin 2020, par Easy Tricks For Android

  This command i used ffmpeg -i "1.mp4" -vf "drawtext=text='watermak_name':x=w-tw-50:y=h-th-50:fontfile=/Windows/fonts/calibri.ttf:fontsize=20:fontcolor=white:shadowcolor=black:shadowx=2:shadowy=2" "output.mp4". watermark is working with this command, but it takes more time up-to 3 hours +

  



  this is the log i got from cmd

  

  

D :>ffmpeg -i "1.mp4" -vf "drawtext=text='watermak_name':x=w-tw-50:y=h/2-th:fontfile=/Windows/fonts/
  courbd.ttf:fontsize=20:fontcolor=white" -max_muxing_queue_size 9999 "1_out.mp4"
  


  
ffmpeg version git-2020-05-23-26b4509 Copyright (c) 2000-2020 the FFmpeg developers
  
 built with gcc 9.3.1 (GCC) 20200523
  
 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-libsrt —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-libvmaf —enable-libvorbis
  —enable-libvo-amrwbenc —enable-libmysofa —enable-libspeex —enable-libxvid —enable-libaom
  —disable-w32threads —enable-libmfx —enable-ffnvcodec —enable-cuda-llvm —enable-cuvid —enable-d3d11va
  —enable-nvenc —enable-nvdec —enable-dxva2 —enable-avisynth —enable-libopenmpt —enable-amf
  
 libavutil 56. 48.100 / 56. 48.100
  
 libavcodec 58. 87.101 / 58. 87.101
  
 libavformat 58. 43.100 / 58. 43.100
  
 libavdevice 58. 9.103 / 58. 9.103
  
 libavfilter 7. 83.100 / 7. 83.100
  
 libswscale 5. 6.101 / 5. 6.101
  
 libswresample 3. 6.100 / 3. 6.100
  
 libpostproc 55. 6.100 / 55. 6.100
  
Truncating packet of size 95 to 83
  
Input #0, matroska,webm, from 'Uriyadi.mkv' :
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Downloaded From ABCD
  
 creation_time : 2020-05-22T16:44:46.000000Z
  
 Duration : 02:11:50.86, start : 0.000000, bitrate : 750 kb/s
  
 Stream #0:0(mal) : Video : h264 (High), yuv420p(progressive), 720x304 [SAR 1:1 DAR 45:19], 25 fps, 25 tbr, 1k
  tbn, 50 tbc (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 Stream #0:1(mal) : Audio : mp3, 48000 Hz, stereo, fltp, 65 kb/s (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
Stream mapping :
  
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  
 Stream #0:1 -> #0:1 (mp3 (mp3float) -> vorbis (libvorbis))
  
Press [q] to stop, [?] for help
  
Fontconfig error : Cannot load default config file
  
[Parsed_drawtext_0 @ 000001a470fe3f00] Using "C :/Windows/fonts/mingliub.ttc"
  
[libx264 @ 000001a470a10600] using SAR=1/1
  
[libx264 @ 000001a470a10600] using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX
  
[libx264 @ 000001a470a10600] profile High, level 3.0, 4:2:0, 8-bit
  
[libx264 @ 000001a470a10600] 264 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 -
  http://www.videolan.org/x264.html - options : cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1
  psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1
  chroma_qp_offset=-2 threads=9 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0
  constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
  keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69
  qpstep=4 ip_ratio=1.40 aq=1:1.00
  
Output #0, matroska, to '1_out.mp4' :
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavf58.43.100
  
 Stream #0:0(mal) : Video : h264 (libx264) (H264 / 0x34363248), yuv420p, 720x304 [SAR 1:1 DAR 45:19], q=-1—1,
  25 fps, 1k tbn, 25 tbc (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavc58.87.101 libx264
  
 Side data :
  
 cpb : bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : N/A
  
 Stream #0:1(mal) : Audio : vorbis (libvorbis) (oV[0][0] / 0x566F), 48000 Hz, stereo, fltp (default)
  
 Metadata :
  
 title : Downloaded From ABCD
  
 encoder : Lavc58.87.101 libvorbis
  
frame=35791 fps=308 q=28.0 size= 107264kB time=00:23:52.10 bitrate= 613.6kbits/s speed=12.3x
  


• FFmpeg filter complex add audio file to video at specific points

  4 juin 2020, par steve

  atrim=0:2 starts fine when I play the video it plays the mp3 now how do I add a working end time say finish at 9 seconds ?
  

  



  Summary I want to start at 2 seconds and finish at 9 seconds.
  

  



  ffmpeg -y -i "C:\Users\test\Desktop\vidz\New folder (2)\target\vaastav song .mp4" -i "C:\Users\test\Desktop\vidz\New folder (2)\target\2.mp3" -filter_complex "[0]atrim=0:2[Apre];[0]atrim=5,asetpts=PTS-STARTPTS[Apost];[Apre][1][Apost]concat=n=3:v=0:a=1" -vcodec copy -y "C:\Users\test\Desktop\vidz\New folder (2)\target\output1.mp4"


  



  log file

  



  ffmpeg version git-2020-04-13-59e3a9a Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 9.3.1 (GCC) 20200328
  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-libsrt --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-libvmaf --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --disable-w32threads --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
  libavutil      56. 42.102 / 56. 42.102
  libavcodec     58. 78.102 / 58. 78.102
  libavformat    58. 42.100 / 58. 42.100
  libavdevice    58.  9.103 / 58.  9.103
  libavfilter     7. 77.101 /  7. 77.101
  libswscale      5.  6.101 /  5.  6.101
  libswresample   3.  6.100 /  3.  6.100
  libpostproc    55.  6.100 / 55.  6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'C:\Users\test\Desktop\vidz\New folder (2)\target\vaastav song .mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    creation_time   : 2018-09-02T04:28:46.000000Z
  Duration: 00:05:08.80, start: 0.000000, bitrate: 2289 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], 2160 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
    Metadata:
      creation_time   : 2018-09-02T04:28:46.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 09/01/2018.
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
    Metadata:
      creation_time   : 2018-09-02T04:28:46.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 09/01/2018.
Input #1, mp3, from 'C:\Users\test\Desktop\vidz\New folder (2)\target\2.mp3':
  Metadata:
    genre           : Electronic;Indie
    title           : A Distorted Noise With A Little Bit Of Sense
    artist          : Lenin Was A Zombie
    encoder         : Lavf56.19.100
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
  Duration: 00:00:54.00, start: 0.025057, bitrate: 192 kb/s
    Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 192 kb/s
    Metadata:
      encoder         : Lavc56.21
Stream mapping:
  Stream #0:1 (aac) -> atrim
  Stream #0:1 (aac) -> atrim
  Stream #1:0 (mp3float) -> concat:in1:a0
  concat -> Stream #0:0 (aac)
  Stream #0:0 -> #0:1 (copy)
Press [q] to stop, [?] for help
Output #0, mp4, to 'C:\Users\test\Desktop\vidz\New folder (2)\target\output1.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: isommp42
    encoder         : Lavf58.42.100
    Stream #0:0: Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      encoder         : Lavc58.78.102 aac
    Stream #0:1(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv, bt709), 1280x720 [SAR 1:1 DAR 16:9], q=2-31, 2160 kb/s, 25 fps, 25 tbr, 90k tbn, 90k tbc (default)
    Metadata:
      creation_time   : 2018-09-02T04:28:46.000000Z
      handler_name    : ISO Media file produced by Google Inc. Created on: 09/01/2018.
frame=  737 fps=0.0 q=-1.0 size=    7936kB time=00:00:29.44 bitrate=2208.1kbits/s speed=58.9x    
[out_0_0 @ 000000000312c900] 100 buffers queued in out_0_0, something may be wrong.
[out_0_0 @ 000000000312c900] 1000 buffers queued in out_0_0, something may be wrong.
frame= 1401 fps=876 q=-1.0 size=   16640kB time=00:01:46.85 bitrate=1275.7kbits/s speed=66.8x    
frame= 2281 fps=1086 q=-1.0 size=   26112kB time=00:02:22.01 bitrate=1506.3kbits/s speed=67.6x    
frame= 3152 fps=1212 q=-1.0 size=   35584kB time=00:02:56.58 bitrate=1650.8kbits/s speed=67.9x    
frame= 4011 fps=1294 q=-1.0 size=   45824kB time=00:03:31.32 bitrate=1776.4kbits/s speed=68.2x    
frame= 4882 fps=1356 q=-1.0 size=   56320kB time=00:04:06.03 bitrate=1875.2kbits/s speed=68.3x    
frame= 5753 fps=1403 q=-1.0 size=   66560kB time=00:04:40.79 bitrate=1941.8kbits/s speed=68.5x    
frame= 6622 fps=1440 q=-1.0 size=   77056kB time=00:05:15.37 bitrate=2001.6kbits/s speed=68.6x    
frame= 7482 fps=1467 q=-1.0 size=   85248kB time=00:05:50.20 bitrate=1994.1kbits/s speed=68.7x    
frame= 7720 fps=1479 q=-1.0 Lsize=   87248kB time=00:05:59.79 bitrate=1986.5kbits/s speed=68.9x    
video:81451kB audio:5634kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.186449%
[aac @ 0000000003017ac0] Qavg: 648.065


  



  I tried messing about with the line of code but no success so I turn to you for additional support