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• Revision ed995afba1 : Make frame-wide filter-type decision fully RD-based. Overall, on all test sets,

  8 juillet 2013, par Ronald S. Bultje

  Changed Paths :
   Modify /vp9/encoder/vp9_block.h

  
   Modify /vp9/encoder/vp9_encodeframe.c

  
   Modify /vp9/encoder/vp9_onyx_if.c

  
   Modify /vp9/encoder/vp9_onyx_int.h

  
   Modify /vp9/encoder/vp9_rdopt.c

  
  
  Make frame-wide filter-type decision fully RD-based.

  Overall, on all test sets, this gains about +0.2% on all metrics.
  City is a clip where this really hurts (-1.0% on all metrics), I'm
  not quite sure why yet. Maybe interesting to look into in the future.

  Change-Id : I6f0eecb20e72f0194633270d30bf00d76d9eae78

• ffmpeg watermark bottom right corner

  8 décembre 2012, par John Doe

  I am not sure why, but I cannot seem to get a watermark rendered on the bottom right corner of my video using ffmpeg.

  I am using the following command :

  ffmpeg –i faded.mov -vf "movie=logo.png [watermark]; [in][watermark] overlay=(main_w-overlay_w-10)/2:(main_h-overlay_h-10)/2 [out]" outputvideo.mov

  I see the following output :

  ffmpeg version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
  
    built on Nov  6 2012 16:50:25 with gcc 4.6.3
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  Input #0, avi, from 'faded.mov':
  
    Metadata:
  
      encoder         : MEncoder svn r34540 (Ubuntu), built with gcc-4.6
  
    Duration: 00:00:20.02, start: 0.000000, bitrate: 3136 kb/s
  
      Stream #0.0: Video: mpeg4 (Simple Profile), yuv420p, 1280x720 [PAR 1:1 DAR 16:9], 50 tbr, 50 tbn, 50 tbc
  
      Stream #0.1: Audio: pcm_s16le, 48000 Hz, 2 channels, s16, 1536 kb/s
  
  [buffer @ 0x905b7a0] w:1280 h:720 pixfmt:yuv420p
  
  [movie @ 0x90527e0] seek_point:0 format_name:(null) file_name:logo2.png stream_index:0
  
  [overlay @ 0x9053080] auto-inserting filter 'auto-inserted scaler 0' between the filter 'Parsed filter 0 movie' and the filter 'Parsed filter 1 overlay'
  
  [scale @ 0x9054ba0] w:144 h:144 fmt:bgra -> w:144 h:144 fmt:yuva420p flags:0x4
  
  [overlay @ 0x9053080] main w:1280 h:720 fmt:yuv420p overlay x:568 y:288 w:144 h:144 fmt:yuva420p
  
  [overlay @ 0x9053080] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
  
  Output #0, mov, to 'outputvideo3.mov':
  
    Metadata:
  
      encoder         : Lavf53.21.0
  
      Stream #0.0: Video: mpeg4, yuv420p, 1280x720 [PAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 50 tbn, 50 tbc
  
      Stream #0.1: Audio: libvo_aacenc, 48000 Hz, 2 channels, s16, 200 kb/s
  
  Stream mapping:
  
    Stream #0.0 -> #0.0
  
    Stream #0.1 -> #0.1
  
  Press ctrl-c to stop encoding
  
  frame= 1001 fps=137 q=31.0 Lsize=    3668kB time=20.02 bitrate=1501.1kbits/s    
  
  video:3159kB audio:492kB global headers:0kB muxing overhead 0.460112%
  
  
  
  hussan@ubuntu:~/Documents/testvideo$ ffmpeg –i faded.mov -vf "movie=logo2.png [watermark]; [in][watermark] overlay=(main_w-overlay_w-10)/2:(main_h-overlay_h-10)/2 [out]" outputvideo3.mov
  
  ffmpeg version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
  
    built on Nov  6 2012 16:50:25 with gcc 4.6.3
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  Unable to find a suitable output format for '–i'

  If anyone has any ideas that would be greatly appreciated !

• ubuntu ffmpeg filters

  29 décembre 2012, par DmitryR

  I'm converting video using ffmpeg on ubuntu.
  Console output is :

  ffmpeg version 0.8.4-4:0.8.4-0ubuntu0.12.04.1, Copyright (c) 2000-2012 the Libav developers
  
    built on Nov  6 2012 16:51:33 with gcc 4.6.3
  
  *** THIS PROGRAM IS DEPRECATED ***
  
  This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
  
  [libspeex @ 0x1ed9560] Missing Speex header, assuming defaults.
  
  [flv @ 0x1ed57a0] decoding for stream 0 failed
  
  [flv @ 0x1ed57a0] Estimating duration from bitrate, this may be inaccurate
  
  Input #0, flv, from '/data/media/hdfvr_temp/videoStream_1355078401768_654.flv':
  
    Metadata:
  
      creationdate    : Sun Dec 9 18:40:13
  
    Duration: 00:00:03.00, start: 0.000000, bitrate: N/A
  
      Stream #0.0: Video: [0][0][0][0] / 0x0000, 1k tbr, 1k tbn, 1k tbc
  
      Stream #0.1: Audio: libspeex, 16000 Hz, 1 channels, s16
  
  [buffer @ 0x1ed94a0] Invalid pixel format string '-1'
  
  Error opening filters!

  What filters does it want ?
  It was installed by sudo apt-get install ffmpeg, LTS 12.04

  Update : command is ffmpeg -i input.flv output.mp4