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The Great Big Beautiful Tomorrow
28 octobre 2011, par
Mis à jour : Octobre 2011
Langue : English
Type : Texte
Autres articles (49)
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Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...) -
Problèmes fréquents
10 mars 2010, parPHP et safe_mode activé
Une des principales sources de problèmes relève de la configuration de PHP et notamment de l’activation du safe_mode
La solution consiterait à soit désactiver le safe_mode soit placer le script dans un répertoire accessible par apache pour le site -
Gestion générale des documents
13 mai 2011, parMédiaSPIP ne modifie jamais le document original mis en ligne.
Pour chaque document mis en ligne il effectue deux opérations successives : la création d’une version supplémentaire qui peut être facilement consultée en ligne tout en laissant l’original téléchargeable dans le cas où le document original ne peut être lu dans un navigateur Internet ; la récupération des métadonnées du document original pour illustrer textuellement le fichier ;
Les tableaux ci-dessous expliquent ce que peut faire MédiaSPIP (...)
Sur d’autres sites (5151)
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ffmpeg converting .mkv to .264
13 octobre 2015, par V. PanchenkoI want to convert .mkv to .264.
I try to do it using ffmpeg :ffmpeg -i input.mkv -vcodec copy -acodec copy output.264
It works without errors, but when I try to play output.264 using ffplay :
ffplay -f h264 -i output.264
ffplay response is :
ffplay version N-75924-gd25c033 Copyright (c) 2003-2015 the FFmpeg developers
built with gcc 5.2.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enab
le-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --en
able-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --ena
ble-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc
--enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enabl
e-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-lzma --ena
ble-decklink --enable-zlib
libavutil 55. 3.100 / 55. 3.100
libavcodec 57. 5.100 / 57. 5.100
libavformat 57. 3.100 / 57. 3.100
libavdevice 57. 0.100 / 57. 0.100
libavfilter 6. 11.100 / 6. 11.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.100 / 2. 0.100
libpostproc 54. 0.100 / 54. 0.100
[h264 @ 03972220] sps_id 24 out of rangeq= 0KB sq= 0B f=0/0
[h264 @ 03972220] missing picture in access unit with size 12836207
[h264 @ 03972220] data partitioning is not implemented. Update your FFmpeg versi
on to the newest one from Git. If the problem still occurs, it means that your f
ile has a feature which has not been implemented.
[h264 @ 03972220] If you want to help, upload a sample of this file to ftp://upl
oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-deve
l@ffmpeg.org)
[h264 @ 03972220] data partitioning is not implemented. Update your FFmpeg versi
on to the newest one from Git. If the problem still occurs, it means that your f
ile has a feature which has not been implemented.
[h264 @ 03972220] If you want to help, upload a sample of this file to ftp://upl
oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-deve
l@ffmpeg.org)
[h264 @ 03972220] sps_id 24 out of range
[h264 @ 03972220] data partitioning is not implemented. Update your FFmpeg versi
on to the newest one from Git. If the problem still occurs, it means that your f
ile has a feature which has not been implemented.
[h264 @ 03972220] If you want to help, upload a sample of this file to ftp://upl
oad.ffmpeg.org/incoming/ and contact the ffmpeg-devel mailing list. (ffmpeg-deve
l@ffmpeg.org)
[h264 @ 03972220] no frame!
[h264 @ 039696e0] Stream #0: not enough frames to estimate rate; consider increa
sing probesize
[h264 @ 039696e0] decoding for stream 0 failed
[h264 @ 039696e0] Could not find codec parameters for stream 0 (Video: h264, non
e): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize' options
Contagion.264: could not find codec parametersHow I can fix it and convert .mkv to .264 correctly ?
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Ffmpeg : Audio/Video mixing but no sound
14 janvier 2014, par user2914878I'm trying to add an audio file to a video file generated from images with FFmpeg.
The command i am using on a Debian distrib is this one
ffmpeg -r 1 -i edit%0d.jpg outputName.mp4 -i Test.mp3
The video file is created but the audio is not working .
Output : :
> ffmpeg version 0.8.9-6:0.8.9-1, Copyright (c) 2000-2013 the Libav developers
built on Nov 3 2013 00:54:50 with gcc 4.7.2
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
[image2 @ 0x2283b20] max_analyze_duration reached
Input #0, image2, from 'edit%0d.jpg':
Duration: 00:00:24.00, start: 0.000000, bitrate: N/A
Stream #0.0: Video: mjpeg, yuvj420p, 800x600 [PAR 1:1 DAR 4:3], 1 fps, 1 tbr, 1 tbn, 1 tbc
[mp3 @ 0x22d8840] max_analyze_duration reached
[mp3 @ 0x22d8840] Estimating duration from bitrate, this may be inaccurate
Input #1, mp3, from 'Test.mp3':
Duration: 00:00:46.04, start: 0.000000, bitrate: 128 kb/s
Stream #1.0: Audio: mp3, 16000 Hz, mono, s16, 128 kb/s
[buffer @ 0x2287480] w:800 h:600 pixfmt:yuvj420p
[libx264 @ 0x22d7d20] using SAR=1/1
[libx264 @ 0x22d7d20] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX
[libx264 @ 0x22d7d20] profile Main, level 3.1
[libx264 @ 0x22d7d20] 264 - core 123 r2189 35cf912 - H.264/MPEG-4 AVC codec - Copyleft 2003-2012 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=1 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=0 b_adapt=1 b_bias=0 direct=1 weightb=0 open_gop=1 weightp=2 keyint=250 keyint_min=1 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=1.25 aq=1:1.00
Output #0, mp4, to '6953289.mp4':
Metadata:
encoder : Lavf53.21.1
Stream #0.0: Video: libx264, yuvj420p, 800x600 [PAR 1:1 DAR 4:3], q=-1--1, 1 tbn, 1 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press ctrl-c to stop encoding
frame= 24 fps= 16 q=17.0 Lsize= 1247kB time=23.00 bitrate= 444.1kbits/s
video:1246kB audio:0kB global headers:0kB muxing overhead 0.079555%
frame I:1 Avg QP:14.91 size: 65650
[libx264 @ 0x22d7d20] frame P:23 Avg QP:14.94 size: 52587
[libx264 @ 0x22d7d20] mb I I16..4: 11.8% 0.0% 88.2%
[libx264 @ 0x22d7d20] mb P I16..4: 29.8% 0.0% 60.5% P16..4: 6.8% 0.2% 0.3% 0.0% 0.0% skip: 2.4%
[libx264 @ 0x22d7d20] coded y,uvDC,uvAC intra: 73.2% 58.6% 49.7% inter: 9.2% 8.0% 1.2%
[libx264 @ 0x22d7d20] i16 v,h,dc,p: 56% 24% 6% 14%
[libx264 @ 0x22d7d20] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 22% 12% 7% 7% 7% 7% 7% 7%
[libx264 @ 0x22d7d20] i8c dc,h,v,p: 60% 17% 13% 9%
[libx264 @ 0x22d7d20] Weighted P-Frames: Y:17.4% UV:17.4%
[libx264 @ 0x22d7d20] ref P L0: 12.9% 8.0% 66.4% 12.8%
[libx264 @ 0x22d7d20] kb/s:425.05On Windows it is working fine, i tried multiple scenarios but i can't seem to find the issue, maybe a codec problem ?
Thank you !
Update :
I manage to fix it this way :
ffmpeg -r 1 -i edit%0d.jpg -i Test.mp3 -ar 44100 -strict experimental
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FFMPEG error while converting flv1 (flv) -> h264 (libx264)
3 juillet 2016, par KalivarapuI am trying to covert flv format video to h264 codec with mp4 format video, but am facing the following error :
Command I executed :
ffmpeg -i input_video.flv -c:v libx264 output.mp4
Error :
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or heightLogs :
ffmpeg version 2.7.2 Copyright (c) 2000-2015 the FFmpeg developers
built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM 3.6.0svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.7.2 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --enable-opencl --cc=clang --host-cflags= --host-ldflags= --enable-libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid --enable-vda
libavutil 54. 27.100 / 54. 27.100
libavcodec 56. 41.100 / 56. 41.100
libavformat 56. 36.100 / 56. 36.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.100 / 1. 2.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, flv, from 'input.flv':
Metadata:
encoder : Lavf53.24.2
Duration: 00:00:53.32, start: 0.000000, bitrate: 787 kb/s
Stream #0:0: Video: flv1, yuv420p, 320x240, 500 kb/s, 25 fps, 25 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: aac (LC), 48000 Hz, 5.1, fltp, 384 kb/s
[libx264 @ 0x7ff885000c00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x7ff885000c00] profile High, level 1.3
[libx264 @ 0x7ff885000c00] 264 - core 144 r2533 c8a773e - H.264/MPEG-4 AVC codec - Copyleft 2003-2015 - 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=6 lookahead_threads=1 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=25 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
[libvo_aacenc @ 0x7ff885001e00] Unable to set encoding parameters
Output #0, mp4, to 'output1.mp4':
Metadata:
encoder : Lavf53.24.2
Stream #0:0: Video: h264 (libx264), yuv420p, 320x240, q=-1--1, 25 fps, 25 tbn, 25 tbc
Metadata:
encoder : Lavc56.41.100 libx264
Stream #0:1: Audio: aac, 0 channels, 128 kb/s
Metadata:
encoder : Lavc56.41.100 libvo_aacenc
Stream mapping:
Stream #0:0 -> #0:0 (flv1 (flv) -> h264 (libx264))
Stream #0:1 -> #0:1 (aac (native) -> aac (libvo_aacenc))
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate, width or heightWhat could be the reason for this ?