Newest 'ffmpeg' Questions - Stack Overflow

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• Using ffmpeg to generate thumbnails of Videos uploaded in JSP

  27 septembre 2013, par Param Singh

  I need help using ffmpeg in jsp.I'm making a youtube based project.I'm able to upload the videos to the Videos directory in my web folder but now I need to create and store a thumbnail of the uploaded video side by side in the thumbs folder.I can do that with ffmpeg but how? I'm confused that where I'm supposed to store the ffmpeg.exe file in my web directory and use it in UploadVideo.jsp page.Please help me,there's very less content about the same on the internet!

• How to put watermak on video with FFMPEG,without resizing the watermark becuase of video resolution ?

  27 septembre 2013, par Shahbaz Younis

  Im looking for a way that the watermark picutre does not get resized,if the video resolution is high or less.Right now i have this problem,if i upload a video like 720p the watermak is really small and when i upload a video that is 240p the watermak is really big.I would just like it to be only one size.Can it do that automatically ? So no matter what the resolution is the of the video the image does not resizes and stays where i put it ? here's the code im using right now

  if ($ffmpeg_ver == "old") {
                      $watermark = '-vf "movie='.$tv_logo_path.' [watermark]; [in][watermark] overlay=10:10 [out]" ';
              } else { 
                      $watermark = '-i '.$tv_logo_path.' -filter_complex "overlay=10:10" ';
              }
  

• Convert and stream videos [on hold]

  26 septembre 2013, par user969068

  I am going to develop a php script on linux based server which will be used to upload videos on server and stream to users. I have seen many open source free/paid libraries available with flash,html5 etc players. After research I have decided to go with ffmpeg to convert videos and use jwPlayer with RTMP protocol to stream videos.

  I am not much familiar with streaming concept but I have researched a lot on this subject since few days, so last I thought to ask here if I am going the correct way to achieve my goals, which are listed below:

  1. My main concern is to start streaming videos as soon page is loaded.
  2. Convert videos after upload ( Found ffmpeg for this purpose is well suited )
  3. Seeking video should be faster (which after searching I found is good with RTMP protocol)

  Please can someone guide me if I am going in the right direction by choosing ffmpeg, jwplayer with RTMP protocol. Thanks a lot for any guidance.

• ffmpeg : How to assign an empty soundtrack to a video ?

  26 septembre 2013, par Jim Miller

  I'm using ffmpeg to build a short hunk of video from a machine-generated png. This is working, but the video now needs to have a soundtrack (an [audio] field) for some of the other things I'm doing with it. I don't actually want any sound in the video, so: is there a way to get ffmpeg to simply set up an empty soundtrack property in the video, perhaps as part of the call that creates the video? I guess I could make an n-second long silent mp3 and bash it in, but is there a simpler / more direct way? Thanks!

• android ffmpeg compilation error

  26 septembre 2013, par aqavi_paracha

  I'm following the steps at AndroidFFmpeg to compile FFmpeg for Android. When I type ./build_android.sh, I get the following error.

  configure: WARNING: you should use --build, --host, --target
  configure: WARNING: you should use --build, --host, --target
  configure: WARNING: invalid host type: &
  configure: WARNING: you should use --build, --host, --target
  configure: WARNING: invalid host type: ffmpeg/AndroidFFmpeg/FFmpegLibrary/jni/vo-amrwbenc/../ffmpeg-build/armeabi
  checking for a BSD-compatible install... /usr/bin/install -c
  checking whether build environment is sane... 
  configure: error: unsafe absolute working directory name
  

  I'm not getting any clue of what is going wrong. Need little help

  Thanks