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• How to use -vf and -filter_complex in same command in FFMPEG

  5 juin 2019, par friendlygiraffe

  I am converting video to gif in FFMPEG on mac using the following :

  ffmpeg -i screenAnimation2.mov -i palette.png -lavfi paletteuse -r "12" -s 300x200 -loop 2 screenAnimation2.gif 

  Which works great, but I’d like to only specify the width, and keep the aspect ratio, which can be done using the scale filter :

  ffmpeg -i screenAnimation2.mov -i palette.png -lavfi paletteuse -r "12" -vf "scale=300:-1" -loop 2 screenAnimation2.gif 

  However, this outputs the error :

  Filtergraph 'scale=300:-1' was specified through the -vf/-af/-filter option for output stream 0:0, which is fed from a complex filtergraph.
  
  -vf/-af/-filter and -filter_complex cannot be used together for the same stream.

  Is there a way round combining the 2 filters ? Or perhaps a way to obtain correct height value and avoid using the scale filter ?

• Video Resolution 1920 x 1080

  29 mai 2020, par Satish Kumar

  Attached the image here I have video of Resolution 1920X1080 (16:9 aspect ratio), when played its cropped with black box all sides. how to remove the blaxk boxes to get the 1920x1080 video.

  



  pl help in on FFmpeg syntax.

  



  Below the audio and video details

  



  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Maths Logic.mp4' :
 Metadata :
 major_brand : isom
 minor_version : 512
 compatible_brands : isomiso2avc1mp41
 encoder : Lavf58.19.102
 Duration : 00:43:11.24, start : 0.000000, bitrate : 1475 kb/s
 Stream #0:0(und) : Video : h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], 1405 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc (default)
 Metadata :
 handler_name : VideoHandler
 Stream #0:1(und) : Audio : aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 64 kb/s (default)
 Metadata :
 handler_name : SoundHandler

  


• ffmpeg 4.3 multipart trim issue

  18 mai 2021, par akshay shringi

  I am trying to trim multiparts from single video using ffmpeg 4.3

  


  here is the command i used

  


  `ffmpeg -i input.mp4 -filter_complex \
"[0:v]trim=start=4:end=22,setpts=PTS-STARTPTS[v0]; \
 [0:a]atrim=start=4:end=22,asetpts=PTS-STARTPTS[a0]; \
 [0:v]trim=start=26:end=100,setpts=PTS-STARTPTS[v1]; \
 [0:a]atrim=start=26:end=100,asetpts=PTS-STARTPTS[a1]; \
 [v0][a0][v1][a1]concat=n=2:v=1:a=1[v][a]" \
-map "[v]" -map "[a]" output.mp4`


  


  Getting this error in FFMPEG 4.3 latest

  


  [mpeg4 @ 0x2b14e80] Invalid pixel aspect ratio 3875/3864, limit is 255/255 reducing


  


  please help if anyone have solution for ffmpeg 4.3

  


  here is the log for the above command , please check

  


      ffmpeg version 4.3.1 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-23)
  configuration: --enable-openssl
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'input.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
  Duration: 00:09:00.67, start: 0.000000, bitrate: 218 kb/s
    Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 322x400 [SAR 3875:3864 DAR 155:192], 168 kb/s, 24 fps, 24 tbr, 90k tbn, 48 tbc (default)
    Stream #0:1(und): Audio: aac (HE-AAC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 47 kb/s (default)
File 'output.mp4' already exists. Overwrite? [y/N] y
Stream mapping:
  Stream #0:0 (h264) -> trim
  Stream #0:0 (h264) -> trim
  Stream #0:1 (aac) -> atrim
  Stream #0:1 (aac) -> atrim
  concat:out:v0 -> Stream #0:0 (mpeg4)
  concat:out:a0 -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
[mpeg4 @ 0x25c4880] Invalid pixel aspect ratio 3875/3864, limit is 255/255 reducing
Output #0, mp4, to 'output.mp4':
  Metadata:
    major_brand     : mp42
    minor_version   : 0
    compatible_brands: mp42isom
    encoder         : Lavf58.45.100
    Stream #0:0: Video: mpeg4 (mp4v / 0x7634706D), yuv420p, 322x400 [SAR 255:254 DAR 8211:10160], q=2-31, 200 kb/s, SAR 3875:3864 DAR 155:192, 24 fps, 12288 tbn, 24 tbc (default)
    Metadata:
      encoder         : Lavc58.91.100 mpeg4
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
    Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      encoder         : Lavc58.91.100 aac
frame= 2208 fps=566 q=16.1 Lsize=    3970kB time=00:01:32.01 bitrate= 353.5kbits/s speed=23.6x    
video:2480kB audio:1442kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 1.204748%
[aac @ 0x25d9180] Qavg: 215.673