
Recherche avancée
Autres articles (58)
-
Le profil des utilisateurs
12 avril 2011, parChaque utilisateur dispose d’une page de profil lui permettant de modifier ses informations personnelle. Dans le menu de haut de page par défaut, un élément de menu est automatiquement créé à l’initialisation de MediaSPIP, visible uniquement si le visiteur est identifié sur le site.
L’utilisateur a accès à la modification de profil depuis sa page auteur, un lien dans la navigation "Modifier votre profil" est (...) -
Configurer la prise en compte des langues
15 novembre 2010, parAccéder à la configuration et ajouter des langues prises en compte
Afin de configurer la prise en compte de nouvelles langues, il est nécessaire de se rendre dans la partie "Administrer" du site.
De là, dans le menu de navigation, vous pouvez accéder à une partie "Gestion des langues" permettant d’activer la prise en compte de nouvelles langues.
Chaque nouvelle langue ajoutée reste désactivable tant qu’aucun objet n’est créé dans cette langue. Dans ce cas, elle devient grisée dans la configuration et (...) -
Les tâches Cron régulières de la ferme
1er décembre 2010, parLa gestion de la ferme passe par l’exécution à intervalle régulier de plusieurs tâches répétitives dites Cron.
Le super Cron (gestion_mutu_super_cron)
Cette tâche, planifiée chaque minute, a pour simple effet d’appeler le Cron de l’ensemble des instances de la mutualisation régulièrement. Couplée avec un Cron système sur le site central de la mutualisation, cela permet de simplement générer des visites régulières sur les différents sites et éviter que les tâches des sites peu visités soient trop (...)
Sur d’autres sites (5538)
-
Compile ffmpeg with libfaac for armv7
25 juillet 2013, par user2617213how can I compile ffmpeg with libfaac for armv7 ?
I want to use libfaac.a for iPhone ,but how to compile ffmpeg with libfaac ? -
How can I reencode a video to match another's codec exactly ?
24 janvier 2020, par Stephen SchraugerWhen I’m on vacation, I usually use our camcorder to record videos. Since they’re all the same format, I can use ffmpeg to concat them into one large, smooth video without re-encoding.
However, sometimes I will use a phone or other camera to record a video (if the camcorder ran out of space/battery or was left at a hotel).
I’d like to determine the codec, framerate, etc used by my camcorder and use those parameters to convert the phone vidoes into the same format. That way, I will be able to concatonate all the videos without re-encoding the camcorder videos.
Using ffprobe, I found my camcorder has this encoding :
Input #0, mpegts, from 'camcorderfile.MTS':
Duration: 00:00:09.54, start: 1.936367, bitrate: 24761 kb/s
Program 1
Stream #0:0[0x1011]: Video: h264 (High) (HDPR / 0x52504448), yuv420p(progressive), 1920x1080 [SAR 1:1 DAR 16:9], 59.94 fps, 59.94 tbr, 90k tbn, 119.88 tbc
Stream #0:1[0x1100]: Audio: ac3 (AC-3 / 0x332D4341), 48000 Hz, stereo, fltp, 256 kb/s
Stream #0:2[0x1200]: Subtitle: hdmv_pgs_subtitle ([144][0][0][0] / 0x0090), 1920x1080The phone (iPhone 5s) encoding is :
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mov.MOV':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2017-01-02T03:04:05.000000Z
com.apple.quicktime.location.ISO6709: +12.3456-789.0123+456.789/
com.apple.quicktime.make: Apple
com.apple.quicktime.model: iPhone 5s
com.apple.quicktime.software: 10.2.1
com.apple.quicktime.creationdate: 2017-01-02T03:04:05-0700
Duration: 00:00:14.38, start: 0.000000, bitrate: 11940 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080, 11865 kb/s, 29.98 fps, 29.97 tbr, 600 tbn, 1200 tbc (default)
Metadata:
creation_time : 2017-01-02T03:04:05.000000Z
handler_name : Core Media Data Handler
encoder : H.264
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, mono, fltp, 63 kb/s (default)
Metadata:
creation_time : 2017-01-02T03:04:05.000000Z
handler_name : Core Media Data Handler
Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
Metadata:
creation_time : 2017-01-02T03:04:05.000000Z
handler_name : Core Media Data Handler
Stream #0:3(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
Metadata:
creation_time : 2017-01-02T03:04:05.000000Z
handler_name : Core Media Data HandlerI’m presuming that ffmpeg will automatically take any acceptable video format, and that I only need to figure out the output settings. I think I need to use
-s 1920x1080
and-pix_fmt yuv420p
for the output, but what other flags do I need in order to make the phone video into the same encoding as the camcorder video ?Can I get some pointers as to how I can translate the ffprobe output into the flags I need to give to ffmpeg ?
Edit : Added the entire Input #0 for both media files.
-
FFMPEG unwanted rotation
5 mars 2015, par BenWhen I add a watermark image with a landscape orientation to a video that has a portrait orientation the video automatically rotates to landscape. How do I prevent this ? Also, the audio file isn’t being merged into the output. How can I include the audio.mp3 to be the sole audio track ?
ffmpeg -i 1425500438.MOV -i hashtag.png -itsoffset 00:00:07 -i audio.mp3 -filter_complex "[0:v]curves=preset=vintage[a];[a][1:v]overlay=10:10[out]" -vcodec libx264 -pix_fmt yuv420p -ss 0:0:07 -t 14 -map "[out]" -y processed.mov
EDIT****
ffmpeg version 2.1.4 Copyright (c) 2000-2014 the FFmpeg developers
built on Mar 19 2014 12:48:02 with Apple LLVM version 5.1 (clang-503.0.38) (based on LLVM 3.4svn)
configuration: --prefix=/usr/local/Cellar/ffmpeg/2.1.4 --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-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/include/openjpeg-1.5 '
libavutil 52. 48.101 / 52. 48.101
libavcodec 55. 39.101 / 55. 39.101
libavformat 55. 19.104 / 55. 19.104
libavdevice 55. 5.100 / 55. 5.100
libavfilter 3. 90.100 / 3. 90.100
libavresample 1. 1. 0 / 1. 1. 0
libswscale 2. 5.101 / 2. 5.101
libswresample 0. 17.104 / 0. 17.104
libpostproc 52. 3.100 / 52. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '1425500438.MOV':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
creation_time : 2015-03-04 20:20:14
encoder : 8.1.2
encoder-eng : 8.1.2
date : 2015-03-04T14:20:14-0600
date-eng : 2015-03-04T14:20:14-0600
model : iPhone 6
model-eng : iPhone 6
make : Apple
make-eng : Apple
Duration: 00:00:10.56, start: 0.000000, bitrate: 703 kb/s
Stream #0:0(und): Video: h264 (Baseline) (avc1 / 0x31637661), yuv420p(tv, smpte170m), 480x360, 696 kb/s, 30.02 fps, 30.08 tbr, 600 tbn, 1200 tbc (default)
Metadata:
rotate : 90
creation_time : 2015-03-04 20:20:14
handler_name : Core Media Data Handler
Input #1, image2, from 'hashtag.png':
Duration: 00:00:00.04, start: 0.000000, bitrate: N/A
Stream #1:0: Video: png, rgba, 131x29, 25 tbr, 25 tbn, 25 tbc
Input #2, mp3, from 'audio.mp3':
Metadata:
encoder : Lavf55.19.104
Duration: 00:00:10.44, start: 0.000000, bitrate: 128 kb/s
Stream #2:0: Audio: mp3, 16000 Hz, stereo, s16p, 128 kb/s
[libx264 @ 0x7f9894017200] using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2 AVX AVX2 FMA3 BMI1 BMI2
[libx264 @ 0x7f9894017200] profile High, level 3.0
[libx264 @ 0x7f9894017200] 264 - core 125 - 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=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, mov, to 'processed.mov':
Metadata:
major_brand : qt
minor_version : 0
compatible_brands: qt
make-eng : Apple
make : Apple
encoder-eng : 8.1.2
date : 2015-03-04T14:20:14-0600
date-eng : 2015-03-04T14:20:14-0600
model : iPhone 6
model-eng : iPhone 6
encoder : Lavf55.19.104
Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 480x360, q=-1--1, 11552 tbn, 30.08 tbc (default)
Stream mapping:
Stream #0:0 (h264) -> curves
Stream #1:0 (png) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Press [q] to stop, [?] for help
frame= 422 fps=413 q=-1.0 Lsize= 361kB time=00:00:13.96 bitrate= 211.9kbits/s dup=303 drop=0
video:356kB audio:0kB subtitle:0 global headers:0kB muxing overhead 1.574185%
[libx264 @ 0x7f9894017200] frame I:2 Avg QP:20.09 size: 19764
[libx264 @ 0x7f9894017200] frame P:134 Avg QP:22.29 size: 2248
[libx264 @ 0x7f9894017200] frame B:286 Avg QP:28.02 size: 79
[libx264 @ 0x7f9894017200] consecutive B-frames: 9.2% 0.0% 3.6% 87.2%
[libx264 @ 0x7f9894017200] mb I I16..4: 6.6% 45.0% 48.4%
[libx264 @ 0x7f9894017200] mb P I16..4: 1.8% 2.4% 0.7% P16..4: 40.8% 13.6% 4.5% 0.0% 0.0% skip:36.1%
[libx264 @ 0x7f9894017200] mb B I16..4: 0.0% 0.0% 0.0% B16..8: 10.9% 0.1% 0.0% direct: 0.0% skip:89.0% L0:56.5% L1:42.3% BI: 1.2%
[libx264 @ 0x7f9894017200] 8x8 transform intra:47.6% inter:61.5%
[libx264 @ 0x7f9894017200] coded y,uvDC,uvAC intra: 51.3% 81.4% 36.7% inter: 5.6% 8.5% 0.5%
[libx264 @ 0x7f9894017200] i16 v,h,dc,p: 21% 27% 12% 40%
[libx264 @ 0x7f9894017200] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 27% 19% 5% 4% 4% 7% 5% 6%
[libx264 @ 0x7f9894017200] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 35% 22% 12% 4% 5% 5% 6% 4% 6%
[libx264 @ 0x7f9894017200] i8c dc,h,v,p: 40% 28% 22% 10%
[libx264 @ 0x7f9894017200] Weighted P-Frames: Y:16.4% UV:10.4%
[libx264 @ 0x7f9894017200] ref P L0: 73.7% 12.2% 11.7% 2.3% 0.2%
[libx264 @ 0x7f9894017200] ref B L0: 93.5% 5.8% 0.7%
[libx264 @ 0x7f9894017200] ref B L1: 97.2% 2.8%
[libx264 @ 0x7f9894017200] kb/s:207.25