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Autres articles (111)
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Script d’installation automatique de MediaSPIP
25 avril 2011, parAfin de palier aux difficultés d’installation dues principalement aux dépendances logicielles coté serveur, un script d’installation "tout en un" en bash a été créé afin de faciliter cette étape sur un serveur doté d’une distribution Linux compatible.
Vous devez bénéficier d’un accès SSH à votre serveur et d’un compte "root" afin de l’utiliser, ce qui permettra d’installer les dépendances. Contactez votre hébergeur si vous ne disposez pas de cela.
La documentation de l’utilisation du script d’installation (...) -
Automated installation script of MediaSPIP
25 avril 2011, parTo overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
The documentation of the use of this installation script is available here.
The code of this (...) -
Que fait exactement ce script ?
18 janvier 2011, parCe script est écrit en bash. Il est donc facilement utilisable sur n’importe quel serveur.
Il n’est compatible qu’avec une liste de distributions précises (voir Liste des distributions compatibles).
Installation de dépendances de MediaSPIP
Son rôle principal est d’installer l’ensemble des dépendances logicielles nécessaires coté serveur à savoir :
Les outils de base pour pouvoir installer le reste des dépendances Les outils de développements : build-essential (via APT depuis les dépôts officiels) ; (...)
Sur d’autres sites (10089)
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ffmpeg export multichannel audio Stereo won't play [migrated]
9 avril 2014, par speedyrazorI am trying to export all audio channels from a multichannel quicktime file with ffmpeg which has the following audio configuration, but am unsure if the command below is correct. All the files look and play correct in Quicktime player except the L+R_Total.wav which refuses to play in Quicktime player or Final Cut but plays fine in VLC, so i'm sure my ffmpeg command is not correct for the stereo on Track 7. The Stereo file is about 1.8GB in size. Here is my track layout in the Quicktime file :
Track 1 - mono
Track 2 - mono
Track 3 - mono
Track 4 - mono
Track 5 - mono
Track 6 - mono
Track 7 - stereoI am using :
/Users/me/Desktop/python/ffmpeg/ffmpeg -i /Users/me/Desktop/test.mov -acodec pcm_s24le -map 0:1 -y Left.wav -acodec pcm_s24le -map 0:2 Right.wav -acodec pcm_s24le -map 0:3 Center.wav -acodec pcm_s24le -map 0:4 LFE.wav -acodec pcm_s24le -map 0:5 Left_Surround.wav -acodec pcm_s24le -map 0:6 Right_Surround.wav -acodec pcm_s24le -map 0:7 Left+Right_Total.wavHere is the printout from the terminal :
MacBook-Pro:~ me$ /Users/me/Desktop/python/ffmpeg/ffmpeg -i /Users/me/Desktop/test.mov -acodec pcm_s24le -map 0:1 -y Left.wav -acodec pcm_s24le -map 0:2 Right.wav -acodec pcm_s24le -map 0:3 Center.wav -acodec pcm_s24le -map 0:4 LFE.wav -acodec pcm_s24le -map 0:5 Left_Surround.wav -acodec pcm_s24le -map 0:6 Right_Surround.wav -acodec pcm_s24le -map 0:7 Left+Right_Total.wav
ffmpeg version 2.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Mar 25 2014 15:00:55 with llvm-gcc 4.2.1 (LLVM build 2336.11.00)
configuration: --prefix=/Volumes/Ramdisk/sw --enable-gpl --enable-pthreads --enable-version3 --enable-libspeex --enable-libvpx --disable-decoder=libvpx --enable-libmp3lame --enable-libtheora --enable-libvorbis --enable-libx264 --enable-avfilter --enable-libopencore_amrwb --enable-libopencore_amrnb --enable-filters --enable-libgsm --arch=x86_64 --enable-runtime-cpudetect
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/Users/me/Desktop/test.mov':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
creation_time : 2014-03-06 11:25:34
Duration: 00:01:03.48, start: 0.000000, bitrate: 153967 kb/s
Stream #0:0(eng): Video: prores (apch / 0x68637061), yuv422p10le, 1920x1080, 144704 kb/s, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr, 23976 tbn, 23976 tbc (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
Stream #0:1(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels (FL), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:2(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels (FR), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:3(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, mono, s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:4(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels (LFE), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:5(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels (BL), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:6(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, 1 channels (BR), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:7(eng): Audio: pcm_s24le (in24 / 0x34326E69), 48000 Hz, downmix, s32, 2304 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream #0:8(eng): Data: none (tmcd / 0x64636D74) (default)
Metadata:
creation_time : 2014-03-06 11:26:04
handler_name : Apple Alias Data Handler
timecode : 00:00:00:00
Output #0, wav, to 'Left.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #0:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels (FL), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #1, wav, to 'Right.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #1:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels (FR), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #2, wav, to 'Center.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #2:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, mono, s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #3, wav, to 'LFE.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #3:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels (LFE), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #4, wav, to 'Left_Surround.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #4:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels (BL), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #5, wav, to 'Right_Surround.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #5:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, 1 channels (BR), s32, 1152 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Output #6, wav, to 'Left+Right_Total.wav':
Metadata:
major_brand : qt
minor_version : 537199360
compatible_brands: qt
ISFT : Lavf55.33.100
Stream #6:0(eng): Audio: pcm_s24le ([1][0][0][0] / 0x0001), 48000 Hz, downmix, s32, 2304 kb/s (default)
Metadata:
creation_time : 2014-03-06 11:25:34
handler_name : Apple Alias Data Handler
Stream mapping:
Stream #0:1 -> #0:0 (pcm_s24le -> pcm_s24le)
Stream #0:2 -> #1:0 (pcm_s24le -> pcm_s24le)
Stream #0:3 -> #2:0 (pcm_s24le -> pcm_s24le)
Stream #0:4 -> #3:0 (pcm_s24le -> pcm_s24le)
Stream #0:5 -> #4:0 (pcm_s24le -> pcm_s24le)
Stream #0:6 -> #5:0 (pcm_s24le -> pcm_s24le)
Stream #0:7 -> #6:0 (pcm_s24le -> pcm_s24le)
Press [q] to stop, [?] for help
size= 8927kB time=00:01:03.48 bitrate=1152.0kbits/s
video:0kB audio:71415kB subtitle:0 data:0 global headers:0kB muxing overhead -87.499863% -
Rotate video, output maximum 1920 x 1080 pixels
9 avril 2014, par Fabien BillerI used
ffmpeg.exe -ss 310 -i "H:\_REC\100MEDIA\someavi.AVI" -ss 0 -t 14 -vf "rotate='54*PI/180:ow=hypot(iw,ih):oh=ow'" -vf scale=1920:1080 "H:\_REC\100MEDIA\somemp4.mp4"which should rotate the video(currently 1920 x 1080, MJPEG, 30fps) around 54° and fit it into 1920 x 1080 Pixels.
What it does is, it ignores the
-vf "rotate='54*PI/180:ow=hypot(iw,ih):oh=ow'" -vf scale=1920:1080and returns the snippet.What to change ?
PS : ffmpeg version N-59696-gc0a33c4
OUTPUT :
E:\Ffmpeg\bin>ffmpeg -ss 310 -i "H:\_REC\100MEDIA\someavi.AVI"
-ss 0 -t 14 -vf "rotate='54*PI/180:ow=hypot(iw,ih):oh=ow'" -vf sca
le=1920:1080 "H:\_REC\100MEDIA\somemp4.mp4"
ffmpeg version N-59696-gc0a33c4 Copyright (c) 2000-2014 the FFmpeg developers
built on Jan 8 2014 22:07:06 with gcc 4.8.2 (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-libcaca --enable-libfreetyp
e --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --ena
ble-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-l
ibopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libsp
eex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aa
cenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavp
ack --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlib
libavutil 52. 62.100 / 52. 62.100
libavcodec 55. 47.100 / 55. 47.100
libavformat 55. 22.102 / 55. 22.102
libavdevice 55. 5.102 / 55. 5.102
libavfilter 4. 0.103 / 4. 0.103
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
[avi @ 0000000002858060] non-interleaved AVI
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, avi, from 'H:\_REC\100MEDIA\someavi.AVI':
Duration: 00:19:59.95, start: 0.000000, bitrate: 13866 kb/s
Stream #0:0: Video: mjpeg (MJPG / 0x47504A4D), yuvj420p(pc), 1920x1080, 30 t
br, 30 tbn, 30 tbc
Stream #0:1: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz, mono, s16, 1
28 kb/s
File 'H:\_REC\100MEDIA\somemp4.mp4' already exists.
Overwrite ? [y/N] y
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 00000000049f2980] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
AVX
[libx264 @ 00000000049f2980] profile High, level 4.0
[libx264 @ 00000000049f2980] 264 - core 140 r2377 1ca7bb9 - H.264/MPEG-4 AVC cod
ec - Copyleft 2003-2013 - http://www.videolan.org/x264.html - options: cabac=1 r
ef=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_pski
p=1 chroma_qp_offset=-2 threads=12 lookahead_threads=2 sliced_threads=0 nr=0 dec
imate=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
Output #0, mp4, to 'H:\_REC\100MEDIA\somemp4.mp4':
Metadata:
encoder : Lavf55.22.102
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuvj420p, 1920x
1080, q=-1--1, 1000k tbn, 30 tbc
Stream #0:1: Audio: aac (libvo_aacenc) ([64][0][0][0] / 0x0040), 8000 Hz, mo
no, s16, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (mjpeg -> libx264)
Stream #0:1 -> #0:1 (pcm_s16le -> libvo_aacenc)
Press [q] to stop, [?] for help
frame= 30 fps=0.0 q=0.0 size= 0kB time=00:00:00.82 bitrate= 0.5kbits/s
frame= 55 fps= 54 q=0.0 size= 0kB time=00:00:01.59 bitrate= 0.2kbits/s
frame= 75 fps= 46 q=29.0 size= 600kB time=00:00:02.10 bitrate=2337.0kbits/
frame= 90 fps= 41 q=29.0 size= 1017kB time=00:00:02.61 bitrate=3185.9kbits/
frame= 105 fps= 37 q=29.0 size= 1482kB time=00:00:03.12 bitrate=3881.8kbits/
frame= 120 fps= 35 q=29.0 size= 1959kB time=00:00:03.76 bitrate=4258.3kbits/
frame= 140 fps= 35 q=29.0 size= 2588kB time=00:00:04.28 bitrate=4953.2kbits/
frame= 145 fps= 32 q=29.0 size= 2742kB time=00:00:04.66 bitrate=4816.0kbits/
frame= 162 fps= 32 q=29.0 size= 3274kB time=00:00:05.17 bitrate=5181.6kbits/
frame= 177 fps= 32 q=29.0 size= 3744kB time=00:00:05.56 bitrate=5515.8kbits/
frame= 190 fps= 31 q=29.0 size= 4144kB time=00:00:06.07 bitrate=5591.5kbits/
frame= 205 fps= 31 q=29.0 size= 4612kB time=00:00:06.45 bitrate=5851.7kbits/
frame= 215 fps= 30 q=29.0 size= 4895kB time=00:00:06.96 bitrate=5754.9kbits/
frame= 227 fps= 30 q=29.0 size= 5169kB time=00:00:07.35 bitrate=5759.4kbits/
frame= 245 fps= 30 q=29.0 size= 5571kB time=00:00:07.99 bitrate=5710.1kbits/
frame= 262 fps= 30 q=29.0 size= 6052kB time=00:00:08.50 bitrate=5830.4kbits/
frame= 280 fps= 30 q=29.0 size= 6505kB time=00:00:09.14 bitrate=5827.4kbits/
frame= 300 fps= 30 q=29.0 size= 7048kB time=00:00:09.65 bitrate=5979.4kbits/
frame= 305 fps= 29 q=29.0 size= 7175kB time=00:00:09.91 bitrate=5930.2kbits/
frame= 322 fps= 29 q=29.0 size= 7675kB time=00:00:10.55 bitrate=5958.3kbits/
frame= 342 fps= 29 q=29.0 size= 8237kB time=00:00:11.06 bitrate=6098.9kbits/
frame= 357 fps= 29 q=29.0 size= 8661kB time=00:00:11.70 bitrate=6062.0kbits/
frame= 369 fps= 29 q=29.0 size= 9010kB time=00:00:12.08 bitrate=6105.8kbits/
frame= 387 fps= 29 q=29.0 size= 9501kB time=00:00:12.72 bitrate=6115.2kbits/
frame= 407 fps= 29 q=29.0 size= 10052kB time=00:00:13.24 bitrate=6219.2kbits/
frame= 414 fps= 29 q=29.0 size= 10257kB time=00:00:13.62 bitrate=6167.7kbits/
frame= 421 fps= 26 q=-1.0 Lsize= 12062kB time=00:00:14.00 bitrate=7053.8kbits
/s dup=253 drop=0
video:12036kB audio:19kB subtitle:0 global headers:0kB muxing overhead 0.054462%
[libx264 @ 00000000049f2980] frame I:2 Avg QP:21.20 size:106302
[libx264 @ 00000000049f2980] frame P:336 Avg QP:23.51 size: 36006
[libx264 @ 00000000049f2980] frame B:83 Avg QP:23.96 size: 169
[libx264 @ 00000000049f2980] consecutive B-frames: 60.6% 39.4% 0.0% 0.0%
[libx264 @ 00000000049f2980] mb I I16..4: 2.0% 96.2% 1.8%
[libx264 @ 00000000049f2980] mb P I16..4: 0.6% 31.1% 0.1% P16..4: 13.6% 3.3
% 1.4% 0.0% 0.0% skip:49.8%
[libx264 @ 00000000049f2980] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 1.3% 0.0
% 0.0% direct: 0.0% skip:98.7% L0: 1.5% L1:98.5% BI: 0.0%
[libx264 @ 00000000049f2980] 8x8 transform intra:97.7% inter:79.3%
[libx264 @ 00000000049f2980] coded y,uvDC,uvAC intra: 86.0% 87.6% 8.9% inter: 9.
3% 15.7% 1.4%
[libx264 @ 00000000049f2980] i16 v,h,dc,p: 7% 7% 6% 80%
[libx264 @ 00000000049f2980] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 16% 14% 54% 3% 3%
2% 3% 3% 3%
[libx264 @ 00000000049f2980] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 14% 12% 14% 6% 21%
5% 19% 5% 4%
[libx264 @ 00000000049f2980] i8c dc,h,v,p: 47% 24% 25% 3%
[libx264 @ 00000000049f2980] Weighted P-Frames: Y:3.6% UV:3.0%
[libx264 @ 00000000049f2980] ref P L0: 57.9% 15.5% 9.5% 16.4% 0.7%
[libx264 @ 00000000049f2980] ref B L0: 34.6% 65.4%
[libx264 @ 00000000049f2980] kb/s:7025.99 -
ffmpeg pipe:0 : could not find codec parameters
13 octobre 2016, par dreWhen i run this command i get an error. If i run without the pipe, it works.
With Pipe
cat mymovie.m4v | ffmpeg -i pipe:0 -an -analyzeduration 1000000 -f image2 -vf
"select='eq(pict_type,PICT_TYPE_I)'" -vsync vfr 'public/files/thumb%04d.png'Without Pipe (Works)
ffmpeg -i mymovie.m4v -an -analyzeduration 2147483647 -probesize 2147483647 -f image2 -vf
"select='eq(pict_type,PICT_TYPE_I)'" -vsync vfr 'public/files/thumb%04d.png'Output
ffmpeg version 2.2 Copyright (c) 2000-2014 the FFmpeg developers
built on Apr 10 2014 17:50:46 with Apple LLVM version 5.1 (clang-503.0.38)
(based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.2
--enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-nonfree
--enable-hardcoded-tables --enable-avresample --enable-vda --cc=clang
--host-cflags= --host-ldflags= --enable-libx264 --enable-libfaac --enable-libmp3lame
--enable-libxvid --enable-libfreetype --enable-libtheora --enable-libvorbis
--enable-libvpx --enable-librtmp --enable-libopencore-amrnb --enable-libopencore-amrwb
--enable-libvo-aacenc --enable-libass --enable-ffplay --enable-libspeex
--enable-libschroedinger --enable-libfdk-aac --enable-libopus --enable-frei0r
--enable-libopenjpeg --extra-cflags='-
I/usr/local/Cellar/openjpeg/1.5.1_1/include/openjpeg-1.5 '
libavutil 52. 66.100 / 52. 66.100
libavcodec 55. 52.102 / 55. 52.102
libavformat 55. 33.100 / 55. 33.100
libavdevice 55. 10.100 / 55. 10.100
libavfilter 4. 2.100 / 4. 2.100
libavresample 1. 2. 0 / 1. 2. 0
libswscale 2. 5.102 / 2. 5.102
libswresample 0. 18.100 / 0. 18.100
libpostproc 52. 3.100 / 52. 3.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fd87b80f000] stream 0, offset 0x2c: partial file
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7fd87b80f000] Could not find codec parameters for stream 0
(Video: h264 (avc1 / 0x31637661), 1280x720, 3310 kb/s): unspecified pixel formatConsider increasing the value for the ’analyzeduration’ and ’probesize’ options
pipe:0 : could not find codec parametersI have tried setting (link)
-analyzeduration100 -probesize 10000000
-analyzeduration 2147483647 -probesize 2147483647Still didn’t work.
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