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• FFmpeg error : Unable to find a suitable output format for ''

  11 juillet 2020, par Benjamin Basmaci

  I'm new to ffmpeg as well as Android programming. I'm trying to load a video from a URL and crop it with ffmpeg. I want to save that video to a file. This is the command I found online :

  


  "-i " + videoUrl + "-filter:v crop=240:120:100:100 -c:a copy test.mp4"


  


  I have tried it and got the error Unable to find a suitable output format for ''

  


  So I tried to narrow the possible cause down and tried these commands as well :

  


  "-i " + videoUrl + " -c:v copy -c:a copy test.mp4"
"-i " + videoUrl + " -c:v copy test.mp4"
"-i " + videoUrl + " -c:a copy test.mp4"
"-i " + videoUrl + " test.mp4"


  


  So with that last one I basically boiled it down to the bare minimum of what a comment needs, as far as I know. But still, same result.

  


  All of them give me the same error. Here is the full output I got via FFmpeg.getLatestOutput()

  


  ffmpeg version v4.2-dev-480 Copyright (c) 2000-2018 the FFmpeg developers
      built with Android (4751641 based on r328903) clang version 7.0.2 (https://android.googlesource.com/toolchain/clang 003100370607242ddd5815e4a043907ea9004281) (https://android.googlesource.com/toolchain/llvm 1d739ffb0366421d383e04ff80ec2ee591315116) (based on LLVM 7.0.2svn)
      configuration: --cross-prefix=i686-linux-android- 
                     --sysroot=/files/android-sdk/ndk-bundle/toolchains/mobile-ffmpeg-api-24-i686/sysroot
                     --prefix=/home/taner/Projects/mobile-ffmpeg/prebuilt/android-x86/ffmpeg 
                     --pkg-config=/usr/bin/pkg-config --enable-version3 --arch=i686 --cpu=i686 
                     --target-os=android --disable-neon --disable-asm --disable-inline-asm 
                     --enable-cross-compile --enable-pic --enable-jni --enable-lto 
                     --enable-optimizations --enable-swscale --enable-shared 
                     --disable-v4l2-m2m --disable-outdev=v4l2 
                     --disable-outdev=fbdev --disable-indev=v4l2 --disable-indev=fbdev 
                     --enable-small --disable-openssl --disable-xmm-clobber-test 
                     --disable-debug --disable-neon-clobber-test --disable-programs 
                     --disable-postproc --disable-doc --disable-htmlpages 
                     --disable-manpages --disable-podpages --disable-txtpages 
                     --disable-static --disable-sndio --disable-schannel 
                     --disable-securetransport --disable-xlib --disable-cuda 
                     --disable-cuvid --disable-nvenc --disable-vaapi --disable-vdpau 
                     --disable-videotoolbox --disable-audiotoolbox --disable-appkit 
                     --disable-alsa --disable-cuda --disable-cuvid --disable-nvenc 
                     --disable-vaapi --disable-vdpau --enable-libfontconfig 
                     --enable-libfreetype --enable-libfribidi --enable-gmp --enable-gnutls 
                     --enable-libmp3lame --enable-libass --enable-iconv --enable-libtheora 
                     --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libxml2 
                     --enable-libopencore-amrnb --enable-libopencore-amrwb 
                     --enable-libshine --enable-libspeex --enable-libwavpack 
                     --enable-libkvazaar --enable-libilbc --enable-libopus 
                     --enable-libsnappy --enable-libsoxr --enable-libaom --enable-libtwolame 
                     --disable-sdl2 --enable-zlib --enable-mediacodec
      libavutil      56. 25.100 / 56. 25.100
      libavcodec     58. 42.104 / 58. 42.104
      libavformat    58. 25.100 / 58. 25.100
      libavdevice    58.  6.101 / 58.  6.101
      libavfilter     7. 46.101 /  7. 46.101
      libswscale      5.  4.100 /  5.  4.100
      libswresample   3.  4.100 /  3.  4.100
    Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://MyVideoUrl.com/example':
      Metadata:
        major_brand     : mp42
        minor_version   : 512
        compatible_brands: isomiso2avc1mp41
        creation_time   : 2019-01-28T13:44:03.000000Z
        encoder         : HandBrake 1.2.0 2018122200
      Duration: 00:00:14.33, start: 0.000000, bitrate: 4478 kb/s
        Stream #0:0(und): Video: h264 (avc1 / 0x31637661), yuv420p(tv, bt709), 1520x2700 [SAR 6075:4864 DAR 45:64], 4475 kb/s, 30.07 fps, 30 tbr, 90k tbn, 180k tbc (default)
        Metadata:
          creation_time   : 2019-01-28T13:44:03.000000Z
          handler_name    : VideoHandler
    [NULL @ 0x91833c00] Unable to find a suitable output format for ''
    : Invalid argument
    .


  


  Why does ffmpeg assume that I have given it no output format and what I need to do to make this work ?

  


  I'm using implementation 'com.arthenica:mobile-ffmpeg-full:4.2'.

  


• How to compile ffmpeg to get only mp3 and mp4 support

  19 février 2019, par Enis Jasarovic

  I’m building Electron app and I use ffmpeg to convert m4a or webm files to mp3, and also to merge video only mp4 with m4a audio file to mp4.

  I am able to achieve this using [media-autobuild-suite] (https://github.com/jb-alvarado/media-autobuild_suite), using light build option, but the size of static files is arround 20mb and I’would like to shrink it a little bit more. I’ve compiled ffmpeg and ffprobe with this configuration.

  --disable-libaom
  
  --disable-version3
  
  # Full
  
  --disable-chromaprint
  
  --disable-cuda-sdk
  
  --disable-decklink
  
  --disable-frei0r
  
  --disable-libbs2b
  
  --disable-libcaca
  
  --disable-libcdio
  
  --disable-libfdk-aac
  
  --disable-libflite
  
  --disable-libfribidi
  
  --disable-libgme
  
  --disable-libgsm
  
  --disable-libilbc
  
  --disable-libkvazaar
  
  --disable-libmodplug
  
  --disable-libnpp
  
  --disable-libopenh264
  
  --disable-libopenmpt
  
  --disable-librtmp
  
  --disable-librubberband
  
  --disable-libssh
  
  --disable-libtesseract
  
  --disable-libxavs
  
  --disable-libzmq
  
  --disable-libzvbi
  
  --disable-opencl
  
  --disable-opengl
  
  --disable-libvmaf
  
  --disable-libcodec2
  
  --disable-libsrt
  
  --disable-ladspa
  
  --disable-ffplay
  
  #--enable-vapoursynth
  
  #--enable-liblensfun
  
  --disable-libndi_newtek
  
  
  
  --enable-demuxer=mp3
  
  --enable-demuxer=mov
  
  --enable-demuxer=opus
  
  
  
  --enable-parser=ac3
  
  --enable-parser=mpegaudio
  
  --enable-parser=h264
  
  --enable-parser=opus
  
  
  
  --enable-protocol=file
  
  --enable-protocol=pipe
  
  
  
  --enable-decoder=mp3
  
  --enable-decoder=mp4
  
  --enable-decoder=opus
  
  
  
  --enable-encoder=mp3
  
  --enable-encoder=mp4
  
  --enable-encoder=opus

  With this configuration I’m getting ffmpeg static file arround 2mb and ffprobe static file arround 2mb but with this error.

  C:\Users\Admin\Desktop\ffmpeg compilations\2mb\local64>ffmpeg -i simple.m4a simple.mp3 
  
  ffmpeg version N-93147-g9326117bf6 Copyright (c) 2000-2019 the FFmpeg developers built with gcc 8.2.1 (Rev1, Built by MSYS2 project) 20181214
  
  configuration:  .... //here comes configuration as described above
  
  libavutil      56. 26.100 / 56. 26.100
  
  libavcodec     58. 47.102 / 58. 47.102
  
  libavformat    58. 26.101 / 58. 26.101
  
  libavdevice    58.  6.101 / 58.  6.101
  
  libavfilter     7. 48.100 /  7. 48.100
  
  libswscale      5.  4.100 /  5.  4.100
  
  libswresample   3.  4.100 /  3.  4.100
  
  libpostproc    55.  4.100 / 55.  4.100
  
  Guessed Channel Layout for Input Stream #0.0 : stereo
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'simple.m4a':
  
  Metadata:
  
    major_brand     : dash
  
    minor_version   : 0
  
    compatible_brands: iso6mp41
  
    creation_time   : 2018-10-31T19:47:32.000000Z
  
  Duration: 00:02:38.92, start: 0.000000, bitrate: 127 kb/s
  
  Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, 7 kb/s (default)
  
  Metadata:
  
    creation_time   : 2018-10-31T19:47:32.000000Z
  
    handler_name    : SoundHandler
  
  [NULL @ 0000000000486200] Unable to find a suitable output format for 'simple.mp3' 
  
  simple.mp3: Invalid argument

  Any ideas what else should I include into this static file ?

• FFMPEG images to video outputs junk

  15 décembre 2019, par GreatCorn

  I’m very new to using FFMPEG and I’m trying to make an image sequence into a video. However, none of my attempts were succesful. I first tried 825x480 .pngs which resulted in and then 512x512 .jpgs, pretty much the same result. I tried a few codes like ffmpeg -framerate 24 -i img%03d.png output.mp4, ffmpeg -r 1/5 -framerate 24 -i img%03d.png -c:v libx264 -vf -pix_fmt yuv420p output.mp4 and etc. I just don’t really understand what I’m supposed to do to prevent this.