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• Encoding for HTTP Live Streaming with Xuggle

  26 mai 2012, par Luuk D. Jansen

  I have created a server system based on Xuggle to encode an incoming file to H264 and segment it. However, when playing the video back in Quicktime it almost works (with a small hiccup in the audio sometimes) but when changing fro one quality stream to another the image gets lost.

  So I ran the 'mediastreamvalidator'and got the following error :

  ERROR : (-1) Unknown video codec : 1836069494 (program 0, track 0)
  ERROR : (-1) failed to parse segment as either an MPEG-2 TS or an ES

  So I used FFMPEG to get some info on the codex :
  The result of my Xuggler encoding :

  Input #0, mpegts, from 'segment_0.ts':
  
    Duration: 00:00:09.40, start: 0.000000, bitrate: 3618 kb/s
  
    Program 1 
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0.0[0x100]: Video: mpeg2video (Main), yuv420p, 960x540 [PAR 1:1 DAR 16:9], 104857 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0.1[0x101]: Audio: mp2, 48000 Hz, stereo, s16, 128 kb/s

  The result of a file created by Compressor :

  Seems stream 0 codec frame rate differs from container frame rate: 180000.00 (180000/1) -> 25.00 (25/1)
  
  Input #0, mpegts, from 'fileSequence1.ts':
  
    Duration: 00:00:09.97, start: 19.984578, bitrate: 5308 kb/s
  
    Program 1 
  
      Stream #0.0[0x101]: Video: h264 (Main), yuv420p, 960x540, 25 tbr, 90k tbn, 180k tbc
  
      Stream #0.1[0x102]: Audio: aac, 22050 Hz, stereo, s16, 32 kb/s

  The main difference seems to me that for the Xuggler encoded file it says Video : mpeg2video instead of h264. However, while encoding I did specifically set the Coder to ICodec.ID.CODEC_ID_H264.

  How can I force it to use h264. The same with audio. I specified AAC and get MP2.

  I subsequent used FFMPEG directly and that results in :

  Input #0, mpegts, from 'encoded.ts':
  
    Duration: 00:00:24.16, start: 1.400000, bitrate: 360 kb/s
  
    Program 1 
  
      Metadata:
  
        service_name    : Service01
  
        service_provider: FFmpeg
  
      Stream #0.0[0x100]: Video: h264 (Main), yuv420p, 1920x1080 [PAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
  
      Stream #0.1[0x101](eng): Audio: aac, 48000 Hz, stereo, s16, 57 kb/s

  That looks better. I could use FFMPEG directly, but by using Xuggler I can segment the file while easier keep track of progress of the process.

• convert mms live audio stream with ffmpeg and upload on rackspace CDN [closed]

  28 mars 2013, par user584569

  im a complete newbie with ffmpeg. The following is the scenario

  I have an mms stream mms ://wms.di-ve.com/vibe which I cannot stream on mobile devices being Microsoft proprietary.
  I know that ffmpeg can do conversions to a stream. The idea is to feed this stream to ffmpeg and its output place it on Rackspace streaming CDN (see :http://www.rackspace.com/knowledge_center/product-faq/cloud-files)
  is this possible ? and if so, how can I do this ?

  Thanks

• How to stitching (side by side)more than one live video streams using ffmpeg

  25 mars 2013, par Samy

  Actually I am using ffmpeg for stitching two videos using following command

  ffmpeg -i dd.f4v -vf "[in] scale=iw/4:ih/4,pad=2*iw:ih [left] ;

  movie=ee.f4v, scale=iw/4:ih/4 [right] ;[left][right]overlay=main_w/2:0
  [out]" out.f4v

  But i am unable to stitch's live streams

  so anybody know how to stitch two live streams side by side.