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Autres articles (86)

  • MediaSPIP version 0.1 Beta

    16 avril 2011, par

    MediaSPIP 0.1 beta est la première version de MediaSPIP décrétée comme "utilisable".
    Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
    Pour avoir une installation fonctionnelle, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
    Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)

  • MediaSPIP 0.1 Beta version

    25 avril 2011, par

    MediaSPIP 0.1 beta is the first version of MediaSPIP proclaimed as "usable".
    The zip file provided here only contains the sources of MediaSPIP in its standalone version.
    To get a working installation, you must manually install all-software dependencies on the server.
    If you want to use this archive for an installation in "farm mode", you will also need to proceed to other manual (...)

  • Personnaliser en ajoutant son logo, sa bannière ou son image de fond

    5 septembre 2013, par

    Certains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;

Sur d’autres sites (12624)

  • snowenc : check minimum resolution

    9 juillet 2013, par Michael Niedermayer
    snowenc : check minimum resolution

    Fixes Ticket1855
    

    Signed-off-by : Michael Niedermayer <michaelni@gmx.at>
    • [DH] libavcodec/snowenc.c

  • jpeg2000 : Validate resolution levels

    1er juillet 2013, par Luca Barbato
    jpeg2000 : Validate resolution levels

    There are 32 maximum decomposition levels, thus 33 resolution levels.
    

    Signed-off-by : Luca Barbato <lu_zero@gentoo.org>
    • [DH] libavcodec/jpeg2000dec.c

  • Getting either incorrect output resolution or FPS from ffmpeg

    5 novembre 2011, par Adam

    I am capturing an RTSP stream from a security camera, and transcoding it for (live streaming) to iphone, using OSX as the encoding platform.
    I have it working correctly, and Im tuning it.
    However, it seems that it is not outputting the requested resolution. This is my script

    /Applications/SecurityCamera/openRTSP -v -c -t rtsp://10.0.1.118/ch1-s1 | \
    
    /Applications/SecurityCamera/ffmpeg \
    
    -r 10 -i - \
    
    -y -an -ab 64000 -f mpegts -vcodec copy -s 960x640 \
    
    -flags +loop -cmp +chroma -partitions +parti4x4+partp8x8+partb8x8 \
    
    -subq 5 -trellis 1 -refs 1 -coder 0 -me_range 16  -keyint_min 25 \
    
    -sc_threshold 40 -i_qfactor 0.71 -bt 400k -maxrate 524288 -bufsize 524288 \
    
    -qcomp 0.6 -qmin 10 -qmax 51 -qdiff 4 -level 30 \
    
    -aspect 960:640 -r 10 -g 10 -async 2 -\
    
    |/Applications/SecurityCamera/mediastreamsegmenter -b http://localhost:8080/\
    
      -f /Library/WebServer/Documents/ -i stream.m3u8 -t 10 -s 4 -D

    This is the status report :

    Input #0, h264, from &#39;pipe:&#39;:
    

    
  Duration: N/A, bitrate: N/A
    
  Stream #0.0: Video: h264, yuv420p, 1600x1200, 10 fps, 10 tbr, 1200k tbn, 20 tbc
    
  [mpegts @ 0x10100c200] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
    
  Output #0, mpegts, to &#39;pipe:&#39;:
    
  Metadata:
    
    encoder         : Lavf52.93.0
    
    Stream #0.0: Video: libx264, yuv420p, 1600x1200 [PAR 1:1 DAR 4:3], q=2-31, 90k tbn, 10 tbc
    
Stream mapping:
    
  Stream #0.0 -> #0.0

    You can see that its working, but it is outputting 1600x1200 for some reason. (possibly -vcodec copy copies all codec parameters, not just the codec type ?)

    If I change the -vcodec copy to -vcodec libx264 then I get the correct status report (stating 960x640, correct), but the streaming switches to 2 FPS (why ? Im forcing both input and output !) and it halts after 54 frames (see output below)

    Seems stream 0 codec frame rate differs from container frame rate: 20.00 (20/1) -> 10.00 (20/2)
    
Input #0, h264, from &#39;pipe:&#39;:
    
  Duration: N/A, bitrate: N/A
    
    Stream #0.0: Video: h264, yuv420p, 1600x1200, 10 fps, 10 tbr, 1200k tbn, 20 tbc
    
[buffer @ 0x100d02420] w:1600 h:1200 pixfmt:yuv420p
    
[scale @ 0x100d026f0] w:1600 h:1200 fmt:yuv420p -> w:960 h:640 fmt:yuv420p flags:0x4
    
[libx264 @ 0x10100d400] using SAR=1/1
    
[libx264 @ 0x10100d400] frame MB size (60x40) > level limit (1620)
    
[libx264 @ 0x10100d400] using cpu capabilities: MMX2 SSE2Fast SSSE3 Cache64 SlowCTZ SlowAtom
    
[libx264 @ 0x10100d400] profile Constrained Baseline, level 3.0
    
[mpegts @ 0x10100c200] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
    
Output #0, mpegts, to &#39;pipe:&#39;:
    
  Metadata:
    
    encoder         : Lavf52.93.0
    
    Stream #0.0: Video: libx264, yuv420p, 960x640 [PAR 1:1 DAR 3:2], q=10-51, 200 kb/s, 90k tbn, 10 tbc
    
Stream mapping:
    
  Stream #0.0 -> #0.0
    
read pmap fffps=  3 q=37.0 size=      37kB time=0.10 bitrate=3008.0kbits/s    bits/s    
    
video pid set at 100
    
found sequence start
    
  next segment value 1026000
    
written bytes 376 skipped 0
    
frame=   54 fps=  2 q=-1.0 Lsize=     160kB time=5.40 bitrate= 242.0kbits/s    
    
video:141kB audio:0kB global headers:0kB muxing overhead 12.872737%
    
frame I:6     Avg QP:34.68  size: 23524
    
[libx264 @ 0x10100d400] frame P:48    Avg QP:41.53  size:    75
    
[libx264 @ 0x10100d400] mb I  I16..4: 63.9%  0.0% 36.1%
    
[libx264 @ 0x10100d400] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  0.8%  0.1%  0.0%  0.0%  0.0%    skip:99.0%
    
[libx264 @ 0x10100d400] final ratefactor: 38.54
    
[libx264 @ 0x10100d400] coded y,uvDC,uvAC intra: 57.7% 22.3% 2.0% inter: 0.0% 0.1% 0.0%
    
[libx264 @ 0x10100d400] i16 v,h,dc,p: 23% 35% 27% 15%
    
[libx264 @ 0x10100d400] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 32% 16%  4%  3%  3%  7%  4%  8%
    
[libx264 @ 0x10100d400] i8c dc,h,v,p: 83% 11%  5%  0%
    
[libx264 @ 0x10100d400] kb/s:214.43

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