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• Configure ffmpeg for android in windows 7 on ubuntu

  22 septembre 2014, par user2659308

  Can anyone help me regarding how to configure ffmpeg with eclipse for android in windows7 or in ubuntu

  I tried many time with ndk10rb but not configured , tried many times

  Can anyone help me asap

• avconv transcoding drops frames

  8 mars 2015, par ziggestardust

  I have a logitech c920 that I can send perfectly fine to a wowza server with this with excelent results :

  ./capture  -o -c0|avconv -f alsa  -b 128k -i hw:1   -re -i - -vcodec copy  -ar 44100 -bufsize 1835k   -map 0:0 -map 1:0 -f flv rtmp://myhost/live/streamname

  (capture program is from here : http://derekmolloy.ie/streaming-video-using-rtp-on-the-beaglebone-black/ I’m not using beaglebone, but his capture software runs excellent on my debian pc)

  However, I want to store the h264 stream from the camera down to disk, and later send it in a lower resolution with avconv so I’m playing with libx264

  It seems I can’t even do this without getting drops :

  ./capture  -o -c0|avconv -f alsa  -b 128k -i hw:1   -re -i - -vcodec libx264  -ar 44100 -bufsize 1835k   -map 0:0 -map 1:0 -f flv rtmp://myhost/live/streamname

  This is what avconv ’-v verbose’ shows :

  alsa @ 0x864b940] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, alsa, from 'hw:1':
  
    Duration: N/A, start: 22758.998967, bitrate: N/A
  
      Stream #0.0: Audio: pcm_s16le, 32000 Hz, 2 channels, s16, 1024 kb/s
  
  .................................................................................................................................[h264 @ 0x8659400] max_analyze_duration reached
  
  [h264 @ 0x8659400] Estimating duration from bitrate, this may be inaccurate
  
  Input #1, h264, from 'pipe:':
  
    Duration: N/A, bitrate: N/A
  
      Stream #1.0: Video: h264 (Constrained Baseline), yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1200k tbn, 48 tbc
  
  Parsing...
  
  Parsed protocol: 0

  ...... and then this :

  Output #0, flv, to 'rtmp://mystream/live/streamname':
  
    Metadata:
  
      encoder         : Lavf53.21.1
  
      Stream #0.0: Audio: libmp3lame, 44100 Hz, 2 channels, s16, 200 kb/s
  
      Stream #0.1: Video: libx264, yuvj420p, 1280x720 [PAR 1:1 DAR 16:9], q=-1--1, 1k tbn, 25 tbc
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (pcm_s16le -> libmp3lame)
  
    Stream #1:0 -> #0:1 (h264 -> libx264)
  
  Press ctrl-c to stop encoding
  
  [alsa @ 0x864b940] ALSA buffer xrun.
  
  *** drop!
  
      Last message repeated 39 times
  
  *** drop!11 fps=  0 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=40    
  
      Last message repeated 46 times
  
  *** drop!22 fps= 21 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=87    
  
  .    Last message repeated 20 timesss
  
  .....*** drop!   27 fps= 13 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=108    
  
      Last message repeated 3 timess
  
  ..*** drop! fps= 10 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=112    
  
      Last message repeated 5 timesss
  
  .*** drop!0 fps=  9 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=118    
  
  .    Last message repeated 5 timess
  
  .*** drop!2 fps=  9 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=124    
  
      Last message repeated 6 timesss
  
  .*** drop!3 fps=  8 q=0.0 size=       0kB time=0.03 bitrate= 116.9kbits/s dup=0 drop=131    
  
  ^C    Last message repeated 1 times
  
  *** drop!
  
      Last message repeated 3 times

  I have tried with ffmpeg but it gives same result with dropped frames.

  Any help appreciated

• Get_iplayer not converting to MP4 [closed]

  16 juin 2022, par PhilDunford

  get_iplayer

  


  I know that this is an old piece of code, but it still does a great job.

  


  In the last week or so it's stopped converting the .ts files to .mp4. I've seem this mentioned elsewhere, but no solution. I think the key line among many error messages may be 'unable to determine ffmpeg version'.

  


  I assume the BBC has done something to break it (this has happened many times before).

  


  Needs someone much cleverer than me to fix it. Does anyone still update the code or know a work around ?