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• Revision 69288 : On teste mieux la config activée ici (c’est pas forcément "modifier" ...

  24 janvier 2013, par rastapopoulos@… — Log

  On teste mieux la config activée ici (c’est pas forcément "modifier" suivant l’action).
  Et on n’appelle pas la journalisation si on a pas toutes les infos de l’objet éditorial en question.

• Corrupt playback of .flv when using JW Player

  21 mai 2012, par Adam Ingmansson

  This question is also asked on Audio-Video Production

  I have some files that when played in jwplayer the playback is corrupt.
  The files are encoded to h.264 using FFMpeg and there is other files encoded in the same way that works.

  At the moment we only use the flash version of the player.

  The corrupt playback looks like this :

  http://adam.ingmansson.com/public/jwplayer-corrupt-video.png

  This problem started showing up after we did an upgrade to FFMpeg, so I haven't ruled out that it could be an encoding error.

  the command used to run FFMpeg is :

  ffmpeg 
  
      -i /home/ftp/1c8f08b7d0d9e7fa4b24066156ad50bc981497a0.mov 
  
      -vcodec libx264 
  
      -preset ultrafast 
  
      -profile baseline 
  
      -acodec libfaac 
  
      -ab 96k 
  
      -crf 19 
  
      -vf movie="/home/adam/logo.png [watermark]; [in][watermark] overlay=main_w-overlay_w-10:main_h-overlay_h-10 [out]" 
  
      -y /home/ftp/1c8f08b7d0d9e7fa4b24066156ad50bc981497a0.flv

  I am in no way an expert in FFMpeg commandline, so feel free to point out any mistakes made.

  FFMpeg info :

  ffmpeg version git-2012-05-02-2330eb1 Copyright (c) 2000-2012 the FFmpeg developers
  
    built on May  3 2012 08:51:25 with gcc 4.4.3
  
    configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3 --enable-x11grab
  
    libavutil      51. 49.100 / 51. 49.100
  
    libavcodec     54. 17.101 / 54. 17.101
  
    libavformat    54.  3.100 / 54.  3.100
  
    libavdevice    53.  4.100 / 53.  4.100
  
    libavfilter     2. 72.103 /  2. 72.103
  
    libswscale      2.  1.100 /  2.  1.100
  
    libswresample   0. 11.100 /  0. 11.100
  
    libpostproc    52.  0.100 / 52.  0.100
  
  [mov,mp4,m4a,3gp,3g2,mj2 @ 0x24300e0] max_analyze_duration 5000000 reached at 5187000
  
  Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/home/ftp/javarecorder/1c8f08b7d0d9e7fa4b24066156ad50bc981497a0.mov':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      creation_time   : 2012-05-16 08:19:41
  
    Duration: 00:13:33.00, start: 0.000000, bitrate: 2164 kb/s
  
      Stream #0:0(eng): Video: qtrle (rle  / 0x20656C72), rgb24, 1366x768, 1457 kb/s, 8.43 fps, 1k tbr, 1k tbn, 1k tbc
  
      Metadata:
  
        creation_time   : 2012-05-16 08:19:41
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:1(eng): Audio: pcm_s16be (twos / 0x736F7774), 44100 Hz, 1 channels, s16, 705 kb/s
  
      Metadata:
  
        creation_time   : 2012-05-16 08:19:41
  
        handler_name    : Apple Alias Data Handler
  
  Please use -profile:a or -profile:v, -profile is ambiguous
  
  [buffer @ 0x2446ac0] w:1366 h:768 pixfmt:rgb24 tb:1/1000000 sar:0/1 sws_param:flags=2
  
  [movie @ 0x242f840] seek_point:0 format_name:(null) file_name:/home/adam/logo.png stream_index:0
  
  [overlay @ 0x2442840] auto-inserting filter 'auto-inserted scale 0' between the filter 'src' and the filter 'Parsed_overlay_1'
  
  [overlay @ 0x2442840] auto-inserting filter 'auto-inserted scale 1' between the filter 'Parsed_movie_0' and the filter 'Parsed_overlay_1'
  
  [scale @ 0x24444a0] w:1366 h:768 fmt:rgb24 sar:0/1 -> w:1366 h:768 fmt:yuv420p sar:0/1 flags:0x4
  
  [scale @ 0x2445100] w:80 h:80 fmt:rgba sar:1/1 -> w:80 h:80 fmt:yuva420p sar:1/1 flags:0x4
  
  [overlay @ 0x2442840] main w:1366 h:768 fmt:yuv420p overlay x:1276 y:678 w:80 h:80 fmt:yuva420p
  
  [overlay @ 0x2442840] main_tb:1/1000000 overlay_tb:1/25 -> tb:1/1000000 exact:1
  
  [libx264 @ 0x242d8c0] MB rate (4128000) > level limit (2073600)
  
  [libx264 @ 0x242d8c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
  
  [libx264 @ 0x242d8c0] profile Constrained Baseline, level 5.2
  
  [libx264 @ 0x242d8c0] 264 - core 124 r2197 69a0443 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=36 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=25 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=19.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
  
  [libfaac @ 0x2443540] channel_layout not specified
  
  Guessed Channel Layout for  Input Stream #0.1 : mono
  
  Output #0, flv, to '/home/ftp/javarecorder/1c8f08b7d0d9e7fa4b24066156ad50bc981497a0.flv':
  
    Metadata:
  
      major_brand     : qt
  
      minor_version   : 537199360
  
      compatible_brands: qt
  
      creation_time   : 2012-05-16 08:19:41
  
      encoder         : Lavf54.3.100
  
      Stream #0:0(eng): Video: h264 ([7][0][0][0] / 0x0007), yuv420p, 1366x768, q=-1--1, 1k tbn, 1k tbc
  
      Metadata:
  
        creation_time   : 2012-05-16 08:19:41
  
        handler_name    : Apple Alias Data Handler
  
      Stream #0:1(eng): Audio: aac ([10][0][0][0] / 0x000A), 44100 Hz, mono, s16, 96 kb/s
  
      Metadata:
  
        creation_time   : 2012-05-16 08:19:41
  
        handler_name    : Apple Alias Data Handler
  
  Stream mapping:
  
    Stream #0:0 -> #0:0 (qtrle -> libx264)
  
    Stream #0:1 -> #0:1 (pcm_s16be -> libfaac)
  
  Press [q] to stop, [?] for help
  
  Input stream #0:1 frame changed from rate:44100 fmt:s16 ch:1 chl:0x0 to rate:44100 fmt:s16 ch:1 chl:0x4
  
  frame= 6856 fps=105 q=-1.0 Lsize=   36030kB time=00:13:32.83 bitrate= 363.1kbits/s
  
  video:27775kB audio:7540kB global headers:0kB muxing overhead 2.026555%
  
  [libx264 @ 0x242d8c0] frame I:28    Avg QP: 4.61  size:238170
  
  [libx264 @ 0x242d8c0] frame P:6828  Avg QP: 7.31  size:  3189
  
  [libx264 @ 0x242d8c0] mb I  I16..4: 100.0%  0.0%  0.0%
  
  [libx264 @ 0x242d8c0] mb P  I16..4:  0.9%  0.0%  0.0%  P16..4:  2.2%  0.0%  0.0%  0.0%  0.0%    skip:96.9%
  
  [libx264 @ 0x242d8c0] coded y,uvDC,uvAC intra: 32.3% 30.0% 29.0% inter: 1.0% 1.1% 1.0%
  
  [libx264 @ 0x242d8c0] i16 v,h,dc,p: 66% 32%  1%  1%
  
  [libx264 @ 0x242d8c0] i8c dc,h,v,p: 62% 23% 14%  1%
  
  [libx264 @ 0x242d8c0] kb/s:279.82

  EDIT :

  A coworker was able to view a "corrupted" file. The only difference between my computer and his is that he have a Mac. Same flash version, same JW Player version. Something is not right here.

• iOS, FFmpeg render video with UIimage vs OpenGL

  23 janvier 2013, par finlir

  I have an IP camera that streams h264 video over RTSP. On iOS I use FFmpeg to capture the RTSP stream and decode the frames then render with an UIimage and UIimageview.

  I have seen examples of of rendering video from FFmpeg, they all seem to use OpenGL ES or the SDL library.

  My question is what are the benefits for using OpenGL ? since rendering with UIimage is easy and seem to work fine.