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• Convert video to OGV, on fedora platform

  20 novembre 2016, par Hammad Haleem

  I need to develop a rest API for publishing and converting videos.

  A major hurdle that I am facing, I need a free converter to convert video in any format to
  OGV. Even though ffmpeg is the best candidate, but I cannot use it because it is not
  in official Fedora repository, but in rpmfusion. I am developing a product that would be deployed on Fedora infra, they only deploy applications via packages into epel6.

  Can you guys suggest something from the official fedora repository ?

• Transcoding HD RTP/UDP stream with FFMPEG

  19 juin 2017, par SudoSu

  I’ve a Tera STI440 streamer with two inputs used (for TV channel streaming). When I watch the source stream it seems allright, but when I start FFMPEG transcoding, the image is going to collapse on random times (probably around every 5-15 sec). The transcoding is okay with SD 480P streams.

  FFPROBE one of my HD stream :
  `

  Input #0, rtp, from 'rtp://239.192.24.3:1234/':
  
    Duration: N/A, start: 18002.926656, bitrate: N/A
  
    Program 202 
  
      Metadata:
  
        service_name    : M5 HD
  
        service_provider: Magyar Televizio
  
      Stream #0:1: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt709, top first), 1440x1080 [SAR 4:3 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:0(hun): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz, stereo, s16p, 128 enter code herekb/s

  FFPROBE one of my SD stream (Which is working properly) :

  Input #0, rtp, from 'rtp://239.192.24.4:1234/':
  
    Duration: N/A, start: 51003.435044, bitrate: N/A
  
    Program 203 
  
      Metadata:
  
        service_name    : RTL Klub
  
        service_provider: Magyar RTL Telev�zi� Zrt.
  
      Stream #0:0: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(tv, bt470bg, top first), 720x576 [SAR 12:11 DAR 15:11], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0:1(hun): Audio: aac_latm (HE-AAC) ([17][0][0][0] / 0x0011), 48000 Hz, stereo, fltp

  I want to do a HLS stream so I ran this script for FFMPEG :

  /usr/bin/ffmpeg -loglevel 16 -i rtp://239.192.24.3:1234/ -s pal -c:v libx264 -c:a libmp3lame -b:v 1000k -b:a 96k -ar 44100 -vf 'yadif=0:-1:1' -preset:v superfast -f hls -hls_time 7 -hls_list_size 10 -hls_wrap 10 -hls_base_url http://10.3.1.3:8080/ts/ -hls_segment_filename /tvman/hls_out/ts/M5_hq_%03d /tvman/hls_out/subplaylist/M5-hq.m3u8

  I access the playlist file from NGINX but also tried Apache too.
  Here’s some log from FFMPEG process (loglevel 16)

  I made some diagnostics :

  • Looked for network traffic (it’s around 60 mbps, so it should be okay with a 100mbps ethernet
  • CPU & RAM load allright
  • I reduced the network traffic by turning off TV channel streams on streamer. It was around 6-7 mbps.

  If you need any more information, I’ll provide it for you.
  Thanks for the help !

  P.S. : I’m not native English speaker, so sorry for mistakes. :)

• Bash Script to convert all flv file in a directory to mp3

  11 août 2014, par UnbrandedTech

  This is my code so far.

  #!/bin/bash
  
  #James Kenaley
  
  #Flv to Mp3 directory converter
  
  
  
  find /home/downloads -iname "*.flv" | \
  
  while read I;
  
  do
  
      `ffmpeg -i ${I} -acodec copy  ${I/%.flv/.mp3}`
  
      echo "$I has been converted"
  
  done

  but its picking up white spaces in the names of the flv files and throws a error saying its not in the directory. how do make it use the whole file name and not the just the first word before the space ?