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• AS3 AIR Detecting video play completion with FFMPEG

  21 août 2015, par AntBirch

  I’m using FFMPEG with AS3 as I need to be able to allow the use of multiple video formats. The problem I’m having is that whilst using FFMPEG the following netStatus will never get triggered - NetStream.Play.Stop

  I’ve tried adding onPlayStatus and onStatus to the client but it seems that FFMPEG doesn’t work with these either. The only way I currently have of knowing if the video is finished is by using "NetStream.Buffer.Empty" but this really isn’t practical and may cause issues in the long run.

  I previously had an issue with being unable to trace out the netStream duration with FFMPEG which resulted in the use of ProgressEvent. Is this function the way forward for my current issue ?

  Thanks in advance.

  EDIT 1 : It may be possible that because NetStream is a sealed class that I have to use an internal class to add the onPlayStatus function to it ? I’ve added netStream.client = new Client();

  EDIT 2 : Can’t seem to find a way to call onPlayStatus.

  EDIT 3 : Not sure if it’s worth noting but netStream.time never seems to match netStream.bufferlength when the video has finished.

• The .mp4 video does not play, which is created from ffmpeg library (not command line)

  25 septembre 2013, par user1914692

  I use ffmpeg library to encode frames to a .mp4 video. The program runs smoothly without error. But the output .mp4 video does not play. Properties of the file does not even show it is a video file, no any information of video stream.

  The related code is :

  const char* ouVideoFileName = "output.mp4";
  
  AVCodecID ouCodec_id = CODEC_ID_H264;

  But if I change it to :

  const char* ouVideoFileName = "output.avi";
  
  AVCodecID ouCodec_id = CODEC_ID_H264;

  The .avi video plays correctly.

  What's wrong with .mp4 video ?

• ffmpeg video will not play in browser

  27 janvier 2018, par Red

  I’m trying to create a simple video with an image and some audio using this command :

  ffmpeg -loop 1 -framerate 2 -i image.jpg -i audio.mp3 -c:v libx264 -c:a aac -strict -2 -preset medium -tune stillimage -crf 0 -shortest -vf "scale=trunc(iw/2)*2:trunc(ih/2)*2" -pix_fmt yuv420p -movflags +faststart output.mp4

  But the resulting video will not play in latest firefox, though it will play in chrome 63.

  ffmpeg stats :

  ffmpeg version 3.4.1-1+b1 Copyright (c) 2000-2017 the FFmpeg developers
  
    built with gcc 7 (Debian 7.2.0-18)
  
    configuration: --prefix=/usr --extra-version=1+b1 --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
  
  Hyper fast Audio and Video encoder

  Any ideas ?