Recherche avancée

Sur d’autres sites (5670)

• Unable to find suitable output format for 'ffmpeg'

  23 mai 2023, par kumarvhat

  I'm trying to use the ffmpeg toolset to stitch a set of images to an .mp4 and am receiving the following error :

  


  [NULL @ 000001d48d1dcc00] Unable to find a suitable output format for 
'ffmpeg' ffmpeg: Invalid argument


  


  The command I'm using is :

  


  ffmpeg -r 30 -f image2 -s 1920x1080 -i C://MYPATH//back_squat_%03d.png -vcodec libx264 -crf 25 -pix_fmt yuv420p C://MYPATH//back_squat.mp4


  


  And the full output looks like this.

  


  ffmpeg version 4.2.3 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-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. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, image2, from 'C://MYPATH//back_squat_%03d.png':
  Duration: 00:00:02.37, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: png, rgba(pc), 900x1000 [SAR 2835:2835 DAR 9:10], 30 fps, 30 tbr, 30 tbn, 30 tbc
Input #1, image2, from 'C://MYPATH//back_squat_%03d.png':
  Duration: 00:00:02.37, start: 0.000000, bitrate: N/A
    Stream #1:0: Video: png, rgba(pc), 900x1000 [SAR 2835:2835 DAR 9:10], 30 fps, 30 tbr, 30 tbn, 30 tbc
[NULL @ 000002001b8d5780] Unable to find a suitable output format for 'ffmpeg'
ffmpeg: Invalid argument


  


  What is wrong with the syntax of the command string ?

  


• Why is the length of the output video increasing when I overlay an image over a video using ffmpeg ?

  24 août 2020, par Farhan

  ffmpeg -i somevideo.mp4 -i someimage.png -filter_complex "[0:v][1:v] overlay=10:10:enable='between(t,2,4)'" output.mp4


  


  In this case, somevideo.mp4 is a 4 second video. I wanted the last 2 seconds to have the overlay of the someimage.png image. After processing, the length of output.mp4 is 5 seconds. Could someone please help me out on this ? Thank you !

  


  Log for ffprobe of output.mp4

  


  ffprobe version 3.4.8-0ubuntu0.2 Copyright (c) 2007-2020 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.5.0-3ubuntu1~18.04)
  configuration: --prefix=/usr --extra-version=0ubuntu0.2 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --enable-gpl --disable-stripping --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librubberband --enable-librsvg --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libopencv --enable-libx264 --enable-shared
  libavutil      55. 78.100 / 55. 78.100
  libavcodec     57.107.100 / 57.107.100
  libavformat    57. 83.100 / 57. 83.100
  libavdevice    57. 10.100 / 57. 10.100
  libavfilter     6.107.100 /  6.107.100
  libavresample   3.  7.  0 /  3.  7.  0
  libswscale      4.  8.100 /  4.  8.100
  libswresample   2.  9.100 /  2.  9.100
  libpostproc    54.  7.100 / 54.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/ceph/bbb/published/presentation/186b47c6a0cd759032ad555b2704a92a77614607-1598159162249/output.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf57.83.100
  Duration: 00:00:42.04, start: 0.000000, bitrate: 269 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 3360x1080 [SAR 1:1 DAR 28:9], 142 kb/s, 24 fps, 24 tbr, 12288 tbn, 48 tbc (default)
    Metadata:
      handler_name    : VideoHandler
    Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 121 kb/s (default)
    Metadata:
      handler_name    : SoundHandler


  


• ffmpeg join filter ignores audio of one input

  18 mai 2021, par regstuff

  I'm taking an audio input from a pulseaudio virtual source and trying to combine that with the audio & video of an rtmp input, and the final output goes to another rtmp.

  


  When I try ajoin, as below, I get a message : [Parsed_join_0 @ 0x2cc9100] No channels are used from input stream 1.
The output has audio only from the first source.

  


  PULSE_SOURCE=vmic ffmpeg -f alsa -i pulse -i rtmp://127.0.0.1/server/stream1 -filter_complex "[0:a][1:a]join=inputs=2:channel_layout=stereo[a]" -map "[a]" -map 1:v -vcodec copy -f flv rtmp://127.0.0.1/server/stream2  


  


  Using amerge, as below, however works, though it throws the message : [Parsed_amerge_0 @ 0x38b70c0] No channel layout for input 1
Output has the merged audio.

  


  PULSE_SOURCE=vmic ffmpeg -f alsa -i pulse -i rtmp://127.0.0.1/server/stream1 -filter_complex "[0:a][1:a]amerge=inputs=2[a]" -map "[a]" -acodec aac -ac 2 -b:a 128k -map 1:v -vcodec copy -f flv rtmp://127.0.0.1/server/stream2


  


  FFMPEG documentation however says ajoin should work. Found this SO comment that says ajoin can't do this however.

  


  Any pointers ?

  


  FFMPEG version :

  


  ffmpeg version 4.0.6 Copyright (c) 2000-2020 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.12) 20160609
  configuration: --prefix=/home/user/ffmpeg_build --pkg-config-flags=--static --extra-cflags=-I/home/user/ffmpeg_build/include --extra-ldflags=-L/home/user/ffmpeg_build/lib --extra-libs='-lpthread -lm' --enable-gpl --enable-openssl --enable-libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libzmq --enable-network --enable-libpulse --enable-nonfree
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100