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Médias (1)
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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (99)
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Emballe médias : à quoi cela sert ?
4 février 2011, parCe plugin vise à gérer des sites de mise en ligne de documents de tous types.
Il crée des "médias", à savoir : un "média" est un article au sens SPIP créé automatiquement lors du téléversement d’un document qu’il soit audio, vidéo, image ou textuel ; un seul document ne peut être lié à un article dit "média" ; -
Librairies et logiciels spécifiques aux médias
10 décembre 2010, parPour un fonctionnement correct et optimal, plusieurs choses sont à prendre en considération.
Il est important, après avoir installé apache2, mysql et php5, d’installer d’autres logiciels nécessaires dont les installations sont décrites dans les liens afférants. Un ensemble de librairies multimedias (x264, libtheora, libvpx) utilisées pour l’encodage et le décodage des vidéos et sons afin de supporter le plus grand nombre de fichiers possibles. Cf. : ce tutoriel ; FFMpeg avec le maximum de décodeurs et (...) -
Taille des images et des logos définissables
9 février 2011, parDans beaucoup d’endroits du site, logos et images sont redimensionnées pour correspondre aux emplacements définis par les thèmes. L’ensemble des ces tailles pouvant changer d’un thème à un autre peuvent être définies directement dans le thème et éviter ainsi à l’utilisateur de devoir les configurer manuellement après avoir changé l’apparence de son site.
Ces tailles d’images sont également disponibles dans la configuration spécifique de MediaSPIP Core. La taille maximale du logo du site en pixels, on permet (...)
Sur d’autres sites (4745)
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Ffmpeg is not always converting correctly
11 juin 2016, par Lewis DayI’m having some problems when I’m using this command to convert video formats It sometimes works and sometimes it doesn’t. For
.avi
files it works for.3gpp
only converts audio and for.flv
it completely doesn’t work is there something that I’m doing wrong basically the$newfilename
will only ever be video formats and the output format will always be a.mp4
Thankyou for any helpffmpeg -i /path/' . $newfilename . ' -vcodec copy -acodec copy /path/' . $rand . '.mp4'
When I try and convert a .flv to .mp4 this is what is produces
ffmpeg version 0.10.15 Copyright (c) 2000-2014 the FFmpeg developers
built on Aug 30 2014 15:49:19 with gcc 4.4.7 20120313 (Red Hat 4.4.7-3)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --incdir=/usr/include/ffm peg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --extra-cflags='-O2 -g -pipe -Wall -Wp,- D_FORTIFY_SOURCE=2 -fexceptions -fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic' --ena ble-bzlib --disable-crystalhd --enable-gnutls --enable-libass --enable-libcdio --enable-libcelt --enab le-libdc1394 --disable-indev=jack --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-op enal --enable-libopenjpeg --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libspee x --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libx264 --enable-libxvid --enable-x1 1grab --enable-avfilter --enable-postproc --enable-pthreads --disable-static --enable-shared --enable- gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-runtime-cpudetect
libavutil 51. 35.100 / 51. 35.100
libavcodec 53. 61.100 / 53. 61.100
libavformat 53. 32.100 / 53. 32.100
libavdevice 53. 4.100 / 53. 4.100
libavfilter 2. 61.100 / 2. 61.100
libswscale 2. 1.100 / 2. 1.100
libswresample 0. 6.100 / 0. 6.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, flv, from '/path/101.flv':
Metadata:
starttime : 0
totalduration : 39
totaldatarate : 639
bytelength : 3096565
canseekontime : true
Duration: 00:00:38.66, start: 0.000000, bitrate: 640 kb/s
Stream #0:0: Video: flv1, yuv420p, 426x240, 581 kb/s, 30 tbr, 1k tbn, 1k tbc
Stream #0:1: Audio: mp3, 22050 Hz, stereo, s16, 64 kb/s
[buffer @ 0x679ce0] w:426 h:240 pixfmt:yuv420p tb:1/1000000 sar:0/1 sws_param:
Incompatible sample format 's16' for codec 'aac', auto-selecting format 'flt'
[libx264 @ 0x679640] using cpu capabilities: none!
[libx264 @ 0x679640] profile High, level 2.1
[libx264 @ 0x679640] 264 - core 120 r2151 a3f4407 - H.264/MPEG-4 AVC codec - Copyleft 2003-2011 - 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 fas t_pskip=1 chroma_qp_offset=-2 threads=3 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 k eyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.6 0 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[NULL @ 0x682a60] Codec is experimental but experimental codecs are not enabled, see -strict -2
Output #0, mp4, to 'path/55271313.mp4':
Metadata:
starttime : 0
totalduration : 39
totaldatarate : 639
bytelength : 3096565
canseekontime : true
Stream #0:0: Video: h264, yuv420p, 426x240, q=-1--1, 90k tbn, 30 tbc
Stream #0:1: Audio: none, 22050 Hz, stereo, flt, 128 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (flv -> libx264)
Stream #0:1 -> #0:1 (mp3 -> aac)
Error while opening encoder for output stream #0:1 - maybe incorrect parameters such as bit_rate, rate , width or height -
ffmpeg conversion x264 [error] : malloc of size 26200384 failed [closed]
13 janvier 2021, par Anshul SinghI'm trying to use FFMPEG to transcode a video with very large frames but I'm getting the following error when trying to convert 4k video on my server.


ffmpeg version N-55112-g7eb9cf593e-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 8 (Debian 8.3.0-6)
 configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg libavutil 56. 61.100 / 56. 61.100\n libavcodec 58.114.100 / 58.114.100
 libavformat 58. 64.100 / 58. 64.100
 libavdevice 58. 11.103 / 58. 11.103
 libavfilter 7. 91.100 / 7. 91.100
 libswscale 5. 8.100 
/ 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5d798c0] st: 0 edit list: 1 Missing key frame while searching for timestamp: 0
 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x5d798c0] st: 0 edit list 1 Cannot find an index entry before timestamp: 0.
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'https://example.com':
 Metadata:
 major_brand : mp42
 minor_version : 0
 compatible_brands: mp42mp41
 creation_time : 2015-07-28T16:09:40.000000Z
 Duration: 00:00:15.04, start: 0.000000, bitrate: 41976 kb/s
 Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), 
 yuv420p(tv, bt709), 3840x2160, 41762 kb/s, 25 fps, 25 tbr, 25k tbn, 50 tbc (default)
 Metadata:
 creation_time : 2015-07-28T16:09:40.000000Z
 handler_name : ?Mainconcept Video Media Handler
 encoder : AVC Coding
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 317 kb/s (default)
 Metadata:
 creation_time : 2015-07-28T16:09:40.000000Z
 handler_name : #Mainconcept MP4 Sound Media Handler
 Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
 Press [q] to stop, [?] for help
 [libx264 @ 0x5d92240] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
 [libx264 @ 0x5d92240] profile Main, level 5.1, 4:2:0, 8-bit
 [libx264 @ 0x5d92240] 264 - core 161 r3027 4121277 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=1 deblock=1:0:0 analyse=0x1:0 me=dia subme=2 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=1 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=abr mbtree=1 bitrate=750 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 frame= 6 fps=0.0 q=0.0 size= 0kB time=-577014:32:22.77 bitrate= -0.0kbits/s speed=N/A \rx264 [error]: malloc of size 26200384 failed
 Video encoding failed
 [libx264 @ 0x5d92240] final ratefactor: 40.36
 Conversion failed!



My server has 1Gb of memory.


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How to insert infinite audio into the live streaming by using ffmpeg ?
20 juillet 2017, par Xiang WangI use the following command to insert infinite audio into
rtsp
stream, but-stream_loop -1
didn’t work. How to fix it ?ffmpeg -i rtsp://admin:12345@192.168.31.104/h264/ch1/main/av_stream -stream_loop -1 -i blank.aac -vcodec libx264 -acodec aac -f flv rtmp://localhost/live/test
This is the full console when I executed the following command :
ffmpeg -i "rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0" -f lavfi -i anullsrc -vcodec libx264 -acodec aac -f flv rtmp://live.lamp.mowainfo.com:11935/live/test
mowa@OpenWRT-Dev:~$ ffmpeg -i "rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0" -f lavfi -i anullsrc -vcodec libx264 -acodec aac -f flv rtmp://live.lamp.mowainfo.com:11935/live/test
ffmpeg version N-86764-ga824685 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --enable-nonfree --enable-gpl --enable-libx264 --enable-zlib
libavutil 55. 67.100 / 55. 67.100
libavcodec 57.100.104 / 57.100.104
libavformat 57. 75.100 / 57. 75.100
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 95.100 / 6. 95.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://admin:admin@192.168.31.140:554/cam/realmonitor?channel=1&subtype=0':
Metadata:
title : RTSP Session/2.0
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1280x720, 25.08 tbr, 90k tbn, 180k tbc
Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Input #1, lavfi, from 'anullsrc':
Duration: N/A, start: 0.000000, bitrate: 705 kb/s
Stream #1:0: Audio: pcm_u8, 44100 Hz, stereo, u8, 705 kb/s
Stream mapping:
Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Stream #1:0 -> #0:1 (pcm_u8 (native) -> aac (native))
Press [q] to stop, [?] for help
[rtsp @ 0x23d0520] Thread message queue blocking; consider raising the thread_queue_size option (current value: 8)
[libx264 @ 0x244d200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 AVX2 LZCNT BMI2
[libx264 @ 0x244d200] profile High, level 3.1
[libx264 @ 0x244d200] 264 - core 148 r2643 5c65704 - 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=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=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, flv, to 'rtmp://live.lamp.mowainfo.com:11935/live/test':
Metadata:
title : RTSP Session/2.0
encoder : Lavf57.75.100
Stream #0:0: Video: h264 (libx264) ([7][0][0][0] / 0x0007), yuv420p, 1280x720, q=-1--1, 25.08 fps, 1k tbn, 25.08 tbc
Metadata:
encoder : Lavc57.100.104 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1: Audio: aac (LC) ([10][0][0][0] / 0x000A), 44100 Hz, stereo, fltp, 128 kb/s
Metadata:
encoder : Lavc57.100.104 aac
Past duration 0.642738 too large 13286kB time=00:03:50.22 bitrate= 472.8kbits/s dup=0 drop=4 speed=0.985x