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• FFMPEG "Invalid data found when processing input" MP4 to MP3

  10 février 2014, par CubeBoy69

  I have a question. I'm converting videos from youtube to mp3. From 1000 files around 150 files this message is in the log.

  /home/desktop/www/tmp/314629.mp4 : Invalid data found when processing input

  The thing is it's only about 10% of the conversions. How can i solve this issue ?

  I'm converting like this

  ffmpeg -y -i /home/desktop/www/tmp/'.$random_flv_name.'.'.$download_format.' -vn -map_metadata -1 -ab 192k /home/desktop/www/audio/'.$yt_video_id.'/songtitle.mp3

• https support for ffmpeg centos ?

  15 novembre 2016, par Abhishek saini

  I have installed ffmpeg on centos.But when I feed url with https like

  ffmpeg -i https://s3-us-west-2.amazonaws.com/bucket/check.mp4 video.mp4

  Error come

  https protocol not found, recompile FFmpeg with openssl, gnutls, or securetransport enabled.

  I know i have to enable this --enable-openssl,but when i am doing like this

  PKG_CONFIG_PATH="/ffmpeg_build/lib/pkgconfig"
  
  ./configure --prefix="$HOME/ffmpeg_build" --extra-cflags="-I$HOME/ffmpeg_build/include" --extra-ldflags="-L$HOME/ffmpeg_build/lib -ldl" --bindir="$HOME/bin" --pkg-config-flags="--static" --enable-gpl --enable-nonfree --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-openssl 

  It give me error like :

  ERROR: opus not found 

  What should I do to enable https? Please help

• How can i parse strings as the inputs to subprocess.Popen ?

  26 juillet 2013, par rash

  Here I tried to cut first and second 30sec long video file from "path/connect.flv" to the files output1.flv and output2.flv. It works. I able to concatenate these two files to form a new file "final.flv" of 60sec long. So this works and i am getting the outputs output1.flv [30sec], output2.flv[30sec] and final.flv[1min].

  Here is the python code :

  import subprocess
  
  
  
  ffmpeg_command1 = ["ffmpeg", "-i", "/home/xincoz/test/connect.flv", "-acodec", "copy", "-ss", "00:00:00", "-t", "00:00:30", "/home/xincoz/test/output1.flv"]
  
  
  
  ffmpeg_command2 = ["ffmpeg", "-i", "/home/xincoz/test/connect.flv", "-acodec", "copy", "-ss", "00:00:30", "-t", "00:00:30", "/home/xincoz/test/output2.flv"]
  
  
  
  ffmpeg_command3 = ["mencoder", "-forceidx", "-ovc", "copy", "-oac", "pcm", "-o", "/home/xincoz/test/final.flv", "/home/xincoz/test/output1.flv", "/home/xincoz/test/output2.flv"]
  
  
  
  subprocess.call(ffmpeg_command1)
  
  
  
  subprocess.call(ffmpeg_command2)
  
  
  
  subprocess.Popen(ffmpeg_command3)

  But what i really want is to concatenate two strings out1 and out2 and concatinate these two to a file instead of concatenating "/home/xincoz/test/output1.flv" and "/home/xincoz/test/output2.flv". So how can i parse string out1 and out2 as the inputs to mencoder ? Please edit my code to achieve the result.

  import subprocess,os
  
  
  
  ffmpeg_command = ["ffmpeg", "-i", "/home/xincoz/test/connect.flv", "-acodec", "copy", "-ss", "00:00:00", "-t", "00:00:30","-f", "flv", "pipe:1"]
  
  
  
  p = subprocess.Popen(ffmpeg_command,stdout=subprocess.PIPE)
  
  
  
  out1, err = p.communicate()
  
  
  
  ffmpeg_command1 = ["ffmpeg", "-i", "/home/xincoz/test/connect.flv", "-acodec", "copy", "-ss", "00:00:30", "-t", "00:00:30","-f", "flv", "pipe:1"]
  
  
  
  p1 = subprocess.Popen(ffmpeg_command1,stdout=subprocess.PIPE)
  
  
  
  out2, err1 = p1.communicate()
  
  
  
  ffmpeg_command2 = ["mencoder", "-forceidx", "-ovc", "copy", "-oac", "pcm", "-o", "/home/xincoz/test/final.flv", out1, out2 ]
  
  
  
  p2=subprocess.Popen(ffmpeg_command2)

  Please help me. Thanks a lot in advance.