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Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
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Librairies et binaires spécifiques au traitement vidéo et sonore
31 janvier 2010, parLes logiciels et librairies suivantes sont utilisées par SPIPmotion d’une manière ou d’une autre.
Binaires obligatoires FFMpeg : encodeur principal, permet de transcoder presque tous les types de fichiers vidéo et sonores dans les formats lisibles sur Internet. CF ce tutoriel pour son installation ; Oggz-tools : outils d’inspection de fichiers ogg ; Mediainfo : récupération d’informations depuis la plupart des formats vidéos et sonores ;
Binaires complémentaires et facultatifs flvtool2 : (...) -
Les statuts des instances de mutualisation
13 mars 2010, parPour des raisons de compatibilité générale du plugin de gestion de mutualisations avec les fonctions originales de SPIP, les statuts des instances sont les mêmes que pour tout autre objets (articles...), seuls leurs noms dans l’interface change quelque peu.
Les différents statuts possibles sont : prepa (demandé) qui correspond à une instance demandée par un utilisateur. Si le site a déjà été créé par le passé, il est passé en mode désactivé. publie (validé) qui correspond à une instance validée par un (...)
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QuTip Example 'bloch-sphere-animation' - video renders blank
15 juillet 2018, par damien murphy.On MacOSX Using Python3 running the following example code provided without modification : https://github.com/qutip/qutip-notebooks/blob/master/examples/bloch-sphere-animation.ipynb
I get a blank video and no errors.
I have installed libav and ffmpeg so I am not sure what else is missing with any error.
What codec did you install on mac when running these samples ?
Looking at the source of qutip I can see what it is using to render the video : https://github.com/qutip/qutip/blob/master/qutip/ipynbtools.py#L392
anim.save(name + '.mp4', fps=10, writer="avconv", codec="libx264")
I have avconv on the command line working without errors
This is the debug outout of matploylib.animation
INFO:matplotlib.animation:Animation.save using DEBUG:matplotlib.animation:frame
size in pixels is 576 x 576 INFO:matplotlib.animation:MovieWriter.run :
running command : [’avconv’, ’-f’, ’rawvideo’, ’-vcodec’, ’rawvideo’,
’-s’, ’576x576’, ’-pix_fmt’, ’rgba’, ’-r’, ’10’, ’-i’, ’pipe :’,
’-vcodec’, ’libx264’, ’-y’, ’movie.mp4’]
DEBUG:matplotlib.animation:MovieWriter.grab_frame : Grabbing frame.
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DEBUG:matplotlib.animation:MovieWriter — Command stdout : b’’
DEBUG:matplotlib.animation:MovieWriter — Command stderr : b"avconv
version 12.3, Copyright (c) 2000-2018 the Libav developers\n built on
Feb 13 2018 11:17:07 with Apple LLVM version 9.0.0
(clang-900.0.39.2)\n[rawvideo @ 0x7f963c000000] Estimating duration
from bitrate, this may be inaccurate\nInput #0, rawvideo, from
’pipe :’ :\n Duration : N/A, start : 0.000000, bitrate : N/A\n Stream0:0 : Video : rawvideo\n rgba, 576x576\n 10 fps, 10 tbn\nStream mapping :\n Stream #0:0 -> #0:0 (rawvideo (native) -> h264
(libx264))\nPress ctrl-c to stop encoding\n[libx264 @ 0x7f963e001800]
using cpu capabilities : MMX2 SSE2Fast SSSE3 SSE4.2 AVX\n[libx264 @
0x7f963e001800] profile High, level 2.2\n[libx264 @ 0x7f963e001800]
264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - Copyleft
2003-2017 - http://www.videolan.org/x264.html - options : cabac=1 ref=3
deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=12
lookahead_threads=2 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250
keyint_min=10 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf
mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40
aq=1:1.00\nOutput #0, mp4, to ’movie.mp4’ :\n Metadata :\n encoder
: Lavf57.7.2\n Stream #0:0 : Video : h264 [[33][0][0][0] / 0x0021]\n
yuv420p, 576x576, q=2-31\n 10 fps, 10 tbn\n Metadata :\n
encoder : Lavc57.25.0 libx264\n Side data :\n cpb :
bitrate max/min/avg : 0/0/0 buffer size : 0 vbv_delay : -1\nframe= 6
fps= 0 q=0.0 size= 0kB time=10000000000.00 bitrate=
0.0kbits/s \rframe= 10 fps= 8 q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s \rframe= 13 fps= 7
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 16 fps= 7 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 19 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 22 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 26 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 30 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 33 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 36 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 39 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 42 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 45 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 48 fps= 6 q=0.0 size= 0kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 51 fps= 6
q=0.0 size= 0kB time=10000000000.00 bitrate= 0.0kbits/s
\rframe= 55 fps= 6 q=0.0 size= 0kB time=10000000000.00
bitrate= 0.0kbits/s \rframe= 59 fps= 6 q=25.0 size= 1kB
time=10000000000.00 bitrate= 0.0kbits/s \rframe= 63 fps= 6
q=25.0 size= 1kB time=0.40 bitrate= 19.8kbits/s \rframe=
67 fps= 6 q=25.0 size= 1kB time=0.80 bitrate= 10.9kbits/s
\rframe= 71 fps= 6 q=25.0 size= 1kB time=1.20 bitrate=
7.9kbits/s \rframe= 75 fps= 6 q=25.0 size= 1kB time=1.60 bitrate= 6.4kbits/s \rframe= 79 fps= 6 q=25.0 size= 1kB
time=2.00 bitrate= 5.5kbits/s \rframe= 82 fps= 6 q=25.0 size=
1kB time=2.30 bitrate= 5.0kbits/s \rframe= 86 fps= 6 q=25.0
size= 2kB time=2.70 bitrate= 4.6kbits/s \rframe= 90 fps=
6 q=25.0 size= 2kB time=3.10 bitrate= 4.2kbits/s \rframe=
93 fps= 6 q=25.0 size= 2kB time=3.40 bitrate= 4.0kbits/s
\rframe= 97 fps= 6 q=25.0 size= 2kB time=3.80 bitrate=
3.8kbits/s \rframe= 101 fps= 6 q=25.0 size= 2kB time=4.20 bitrate= 3.6kbits/s \rframe= 105 fps= 6 q=25.0 size= 2kB
time=4.60 bitrate= 3.4kbits/s \rframe= 109 fps= 6 q=25.0 size=
2kB time=5.00 bitrate= 3.3kbits/s \rframe= 112 fps= 6 q=25.0
size= 2kB time=5.30 bitrate= 3.2kbits/s \rframe= 116 fps=
6 q=25.0 size= 2kB time=5.70 bitrate= 3.2kbits/s \rframe=
120 fps= 6 q=25.0 size= 2kB time=6.10 bitrate= 3.1kbits/s
\rframe= 123 fps= 6 q=25.0 size= 2kB time=6.40 bitrate=
3.0kbits/s \rframe= 126 fps= 6 q=25.0 size= 2kB time=6.70 bitrate= 3.0kbits/s \rframe= 129 fps= 6 q=25.0 size= 2kB
time=7.00 bitrate= 2.9kbits/s \rframe= 132 fps= 6 q=25.0 size=
3kB time=7.30 bitrate= 2.9kbits/s \rframe= 135 fps= 6 q=25.0
size= 3kB time=7.60 bitrate= 2.8kbits/s \rframe= 138 fps=
6 q=25.0 size= 3kB time=7.90 bitrate= 2.8kbits/s \rframe=
141 fps= 6 q=25.0 size= 3kB time=8.20 bitrate= 2.8kbits/s
\rframe= 144 fps= 6 q=25.0 size= 3kB time=8.50 bitrate=
2.7kbits/s \rframe= 148 fps= 6 q=25.0 size= 3kB time=8.90 bitrate= 2.7kbits/s \rframe= 150 fps= 6 q=-1.0 Lsize= 7kB
time=14.70 bitrate= 4.1kbits/s \r\nvideo:4kB audio:0kB other
streams:0kB global headers:0kB muxing overhead : 74.948143%\n[libx264 @
0x7f963e001800] frame I:1 Avg QP : 6.00 size : 112\n[libx264 @
0x7f963e001800] frame P:38 Avg QP : 6.21 size : 30\n[libx264 @
0x7f963e001800] frame B:111 Avg QP : 9.67 size : 22\n[libx264 @
0x7f963e001800] consecutive B-frames : 1.3% 0.0% 0.0%
98.7%\n[libx264 @ 0x7f963e001800] mb I I16..4 : 100.0% 0.0% 0.0%\n[libx264 @ 0x7f963e001800] mb P I16..4 : 0.0% 0.0% 0.0% P16..4 : 0.0% 0.0% 0.0% 0.0% 0.0% skip:100.0%\n[libx264 @
0x7f963e001800] mb B I16..4 : 0.0% 0.0% 0.0% B16..8 : 0.0% 0.0%
0.0% direct : 0.0% skip:100.0%\n[libx264 @ 0x7f963e001800] 8x8 transform intra:0.0%\n[libx264 @ 0x7f963e001800] coded y,uvDC,uvAC
intra : 0.0% 0.0% 0.0% inter : 0.0% 0.0% 0.0%\n[libx264 @
0x7f963e001800] i16 v,h,dc,p : 97% 0% 3% 0%\n[libx264 @
0x7f963e001800] i8c dc,h,v,p : 100% 0% 0% 0%\n[libx264 @
0x7f963e001800] Weighted P-Frames : Y:0.0% UV:0.0%\n[libx264 @
0x7f963e001800] kb/s:1.95\n" -
Using ffmpeg, frame between animation loop
19 juillet 2018, par Celil Şahinagain me :)
I could not reach the end result. waiting for help for a different problem.4 sec normal and 3 sec animation, until the end of the video.
animation : random (left-right-top-bottom) 1.5 sec and 1.5 sec orjinal position overlay 0. Total 3 sec and 4 sec normal, again random position.
if random it is not, Fixed value.Plss @Gyan, I really need.
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Create video from images with transition animation FFMPEG [on hold]
2 août 2018, par kiran boghraI want to add transition animation while making video from Images like when Image changing one by one transition animation should display So how to achieve this functionality ?