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• Could not find codec parameters for stream 0

  14 février 2021, par khinester

  When I run this command :

  



  ffmpeg -y -i ./in.mp4 -c:v png -f image2pipe -thread_queue_size 1024 -r 25 -t 186.75 -i - -filter_complex overlay=0:0 -c:v libx264 -pix_fmt yuv420p -movflags +faststart ./out.mp4 < ./out.png


  



  I get an error :

  



  (git)-[master] 
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --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-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --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-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv
  WARNING: library configuration mismatch
  avcodec     configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --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-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --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-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11grab --enable-libdc1394 --enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264 --enable-libopencv --enable-version3 --disable-doc --disable-programs --disable-avdevice --disable-avfilter --disable-avformat --disable-avresample --disable-postproc --disable-swscale --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libvo_aacenc --enable-libvo_amrwbenc
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from './in.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    creation_time   : 1970-01-01 00:00:00
    encoder         : Lavf52.99.1
  Duration: 00:03:06.75, start: 0.000000, bitrate: 538 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 480x320 [SAR 1:1 DAR 3:2], 465 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : VideoHandler
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 67 kb/s (default)
    Metadata:
      creation_time   : 1970-01-01 00:00:00
      handler_name    : SoundHandler
[image2pipe @ 0x15f7200] Could not find codec parameters for stream 0 (Video: png, none(pc)): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
pipe:: could not find codec parameters
Input #1, image2pipe, from 'pipe:':
  Duration: N/A, bitrate: N/A
    Stream #1:0: Video: png, none(pc), 25 tbr, 25 tbn, 25 tbc
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
[buffer @ 0x15e2620] Unable to parse option value "-1" as pixel format
[buffer @ 0x15e2620] Unable to parse option value "0x0" as image size
[buffer @ 0x15e2620] Error setting option video_size to value 0x0.
[graph 0 input from stream 1:0 @ 0x15e23e0] Error applying options to the filter.
Error configuring complex filters.
Invalid argument

Consider increasing the value for the 'analyzeduration' and 'probesize' options pipe:0: could not find codec parameters


  



  What am I missing in my setup ?

  


• FFMPEG : How do I maintain the aspect ratio of various images used in a slideshow ?

  7 mars 2019, par Kimberly W

  I’m just starting out with FFMPEG and trying to use it to make a slideshow. Ideally, I’d like to get it where I can input an arbitrary number of images, and each image is shown for (example) 2 seconds and them moves on to the next. Each image also maintains it’s original aspect ratio and is not stretched in any way (they can of course be scaled up/down to fit the resolution of the output video).

  I started off with a basic command like the following.

  ffmpeg -r 1/9 -pattern_type glob -i "*.jpg" -c:v libx264 -y -pix_fmt yuv420p -vf scale="720:trunc(ow/a/2)*2" out.mp4

  In this example, the first image is a wide (landscape) image and some of the others are tall (portrait) images. The portrait ones get squished in output video. Also the images aren’t displayed for equal amount of times.

  A couple of problems I’ve been running into :

  1. There’s an error for width not divisible by 2, because the images can be literally any random width. To resolve that, I’ve been trying various -vf options I’ve found through googling (like the one above). They take care of the error, but don’t solve my aspect ratio issue.
  2. All the images seem to be stretch or squished to fit the dimensions of the first input image. In reality, the images are of various different dimensions (like frames in a comic book). There’s no pattern to them.

  Is there a ffmpeg command for just taking images and creating as slideshow, while preserving their original aspect ratios ?

• FFMPEG - it takes frames from .avi but doesn't work for mp4

  15 mai 2019, par Zector

  I run the following PHP code in a loop in order to extract the frame from 10th second from a list of video (avi & mp4) :

  $command = "$ffmpegpath -y -i $input  -vframes 1 -ss 00:00:$fromdurasec -y $output";

  It seems that it generates frames for avi files but not for mp4.

  When I run the command manually in command-line it works as expected (as in takes the frame and saves it in folder). Please find below the full log of ffmpeg process :

  ffmpeg version 3.0.2 Copyright (c) 2000-2016 the FFmpeg developers
  
  built with gcc 4.8.5 (GCC) 20150623 (Red Hat 4.8.5-4)
  
  configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --enable-libmp3lame --enable-libx264 --enable-libvorbis -- 
  
  enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libopencore-amrnb --enable-gray --enable-libopenjpeg --enable-gnutls --enable-libfaac --enable-nonfree --disable-indev=sndio --disable-outdev=sndio --cc=gcc
  
  libavutil      55. 17.103 / 55. 17.103
  
  libavcodec     57. 24.102 / 57. 24.102
  
  libavformat    57. 25.100 / 57. 25.100
  
  libavdevice    57.  0.101 / 57.  0.101
  
  libavfilter     6. 31.100 /  6. 31.100
  
  libswscale      4.  0.100 /  4.  0.100
  
  libswresample   2.  0.101 /  2.  0.101
  
  libpostproc    54.  0.100 / 54.  0.100
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'new test video.mp4':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  creation_time   : 1970-01-01 00:00:00
  
  encoder         : Lavf52.93.0
  
  Duration: 00:22:19.33, start: 0.000000, bitrate: 3560 kb/s
  
  Stream #0:0(rus): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 3427 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc (default)
  
  Metadata:
  
    creation_time   : 1970-01-01 00:00:00
  
    handler_name    : VideoHandler
  
  Stream #0:1(rus): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 127 kb/s (default)
  
  Metadata:
  
    creation_time   : 1970-01-01 00:00:00
  
    handler_name    : SoundHandler
  
  [swscaler @ 0x20b0140] deprecated pixel format used, make sure you did set range correctly
  
  Output #0, image2, to 'newtest.jpg':
  
  Metadata:
  
  major_brand     : isom
  
  minor_version   : 512
  
  compatible_brands: isomiso2avc1mp41
  
  encoder         : Lavf57.25.100
  
  Stream #0:0(rus): Video: mjpeg, yuvj420p(pc), 1280x720, q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc (default)
  
  Metadata:
  
    creation_time   : 1970-01-01 00:00:00
  
    handler_name    : VideoHandler
  
    encoder         : Lavc57.24.102 mjpeg
  
  Side data:
  
    unknown side data type 10 (24 bytes)
  
  Stream mapping:
  
  Stream #0:0 -> #0:0 (h264 (native) -> mjpeg (native))
  
  Press [q] to stop, [?] for help
  
  frame=    0 fps=0.0 q=0.0 size=N/A time=00:00:00.00 bitrate=N/A speed=   0x
  
  Enter command: <target>|all <time>|-1 <command>[ <argument>]
  
  </argument></command></time></target>