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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...)
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FFMPEG wrong duration when using amix filter
12 mars 2020, par LeonardI am trying to add background music to a video with an existing audio-track. I settled for the amix filter, since other filters seemed to cause a delayed audio track. So far everything is working as intended, however the output video is cut off at 11:34min. Which is 3 seconds shorter than the input video. I already tried to increase the length of the input video by e.g. 5 seconds, which still leads to the same output length of 11:34min. Here is the exact command I am using :
ffmpeg -i video.mp4 -i bg_music.wav -filter_complex "[0:a]volume=1.5[a0];[1:a]volume=0.2[a1];[a0][a1]amix=duration=shortest[a]" -map 0:v -map [a] -c:v copy -c:a aac -ar 22050 out.mp4
And this is the output I am getting. In this call the video has a length of 11:42min and the audio a length of 36:59min. I am running macOS Catalina 10.15.3 :
built with Apple clang version 11.0.0 (clang-1100.0.33.17)
configuration: --prefix=/usr/local/Cellar/ffmpeg/4.2.2_2 --enable-shared --enable-pthreads --enable-version3 --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libmp3lame --enable-libopus --enable-librubberband --enable-libsnappy --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-videotoolbox --disable-libjack --disable-indev=jack
libavutil 56. 31.100 / 56. 31.100
libavcodec 58. 54.100 / 58. 54.100
libavformat 58. 29.100 / 58. 29.100
libavdevice 58. 8.100 / 58. 8.100
libavfilter 7. 57.100 / 7. 57.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 5.100 / 5. 5.100
libswresample 3. 5.100 / 3. 5.100
libpostproc 55. 5.100 / 55. 5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'video.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Duration: 00:11:42.14, start: 0.000000, bitrate: 9182 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, 9196 kb/s, 4.89 fps, 2.92 tbr, 15360 tbn, 120 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, stereo, fltp, 100 kb/s (default)
Metadata:
handler_name : SoundHandler
Guessed Channel Layout for Input Stream #1.0 : stereo
Input #1, wav, from 'bg_music.wav':
Metadata:
encoder : Adobe Audition 13.0 (Macintosh)
date : 2020-02-28
creation_time : 15:49:40
time_reference : 0
Duration: 00:36:58.57, bitrate: 2822 kb/s
Stream #1:0: Audio: pcm_f32le ([3][0][0][0] / 0x0003), 44100 Hz, stereo, flt, 2822 kb/s
Stream mapping:
Stream #0:1 (aac) -> volume
Stream #1:0 (pcm_f32le) -> volume
Stream #0:0 -> #0:0 (copy)
amix -> Stream #0:1 (aac)
Press [q] to stop, [?] for help
Output #0, mp4, to 'out.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf58.29.100
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1920x1080, q=2-31, 9196 kb/s, 4.89 fps, 2.92 tbr, 15360 tbn, 15360 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1: Audio: aac (LC) (mp4a / 0x6134706D), 22050 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
encoder : Lavc58.54.100 aac
frame= 3392 fps=510 q=-1.0 Lsize= 789403kB time=00:11:33.46 bitrate=9325.3kbits/s speed= 104x
video:778257kB audio:11032kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.014279%
[aac @ 0x7fe32d00e800] Qavg: 333.046``` -
10 Matomo Features You Possibly Didn’t Know About
28 octobre 2022, par Erin -
Font setting for ffmpeg not working when adding subtitles from .srt file
29 septembre 2022, par asdfghI've been trying to use the ffmpeg-subtitles
option like this


ffmpeg -i demo.mp4 -vf "subtitles=demo.srt:fontsdir=/usr/share/fonts/truetype/dejavu:force_style='Fontsize=24px,PrimaryColour=&H000000FF,force_style=Fontname=DejaVuSerif'" out.mp4



but it seems to me that some default config file is overriding font argument from command line because it is ignored (the other things like generating video with subtitle and text coloring works fine), as per this line


fontselect: (Arial, 400, 0) -> /usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf, 0, LiberationSans



no matter what I give as fontsdir or Fontname, ffmpeg always uses LiberationSans. Here is the full output of the command above :


ffmpeg version 4.1.6-1~deb10u1 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 8 (Debian 8.3.0-6)
 configuration: --prefix=/usr --extra-version='1~deb10u1' --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avresample --disable-filter=resample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 libavutil 56. 22.100 / 56. 22.100
 libavcodec 58. 35.100 / 58. 35.100
 libavformat 58. 20.100 / 58. 20.100
 libavdevice 58. 5.100 / 58. 5.100
 libavfilter 7. 40.101 / 7. 40.101
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 3.100 / 5. 3.100
 libswresample 3. 3.100 / 3. 3.100
 libpostproc 55. 3.100 / 55. 3.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'demo.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.45.100
 Duration: 00:00:17.27, start: 0.000000, bitrate: 752 kb/s
 Stream #0:0(und): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 410x358 [SAR 3529:3532 DAR 723445:632228], 751 kb/s, SAR 8234:8241 DAR 230:201, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
 Metadata:
 handler_name : VideoHandler
File 'out.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Shaper: FriBidi 0.19.7 (SIMPLE) HarfBuzz-ng 2.3.1 (COMPLEX)
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Bold.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Bold.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSans-BoldOblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Oblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansMono-Oblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-BoldItalic.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuMathTeXGyre.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerif-BoldItalic.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerifCondensed-Italic.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSans-ExtraLight.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-Bold.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansMono.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerif-Bold.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansMono-BoldOblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerif.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSans-Oblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSerif-Italic.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Loading font file '/usr/share/fonts/truetype/dejavu/DejaVuSansCondensed-BoldOblique.ttf'
[Parsed_subtitles_0 @ 0x5589d9ca5a40] Using font provider fontconfig
[Parsed_subtitles_0 @ 0x5589d9ca5a40] fontselect: (Arial, 400, 0) -> /usr/share/fonts/truetype/liberation/LiberationSans-Regular.ttf, 0, LiberationSans
[libx264 @ 0x5589d9b4cb40] using SAR=3529/3532
[libx264 @ 0x5589d9b4cb40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x5589d9b4cb40] profile High, level 2.1
[libx264 @ 0x5589d9b4cb40] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC codec - Copyleft 2003-2018 - 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
Output #0, mp4, to 'out.mp4':
 Metadata:
 major_brand : isom
 minor_version : 512
 compatible_brands: isomiso2avc1mp41
 encoder : Lavf58.20.100
 Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 410x358 [SAR 8234:8241 DAR 230:201], q=-1--1, 30 fps, 15360 tbn, 30 tbc (default)
 Metadata:
 handler_name : VideoHandler
 encoder : Lavc58.35.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 518 fps=216 q=-1.0 Lsize= 936kB time=00:00:17.16 bitrate= 446.7kbits/s speed=7.15x 
video:929kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.716306%
[libx264 @ 0x5589d9b4cb40] frame I:3 Avg QP:22.06 size: 9804
[libx264 @ 0x5589d9b4cb40] frame P:169 Avg QP:25.02 size: 3412
[libx264 @ 0x5589d9b4cb40] frame B:346 Avg QP:27.47 size: 997
[libx264 @ 0x5589d9b4cb40] consecutive B-frames: 7.7% 6.6% 9.3% 76.4%
[libx264 @ 0x5589d9b4cb40] mb I I16..4: 14.3% 63.4% 22.2%
[libx264 @ 0x5589d9b4cb40] mb P I16..4: 9.9% 16.4% 2.6% P16..4: 41.8% 17.3% 5.2% 0.0% 0.0% skip: 6.7%
[libx264 @ 0x5589d9b4cb40] mb B I16..4: 1.6% 2.3% 0.3% B16..8: 43.9% 5.7% 0.6% direct: 2.2% skip:43.4% L0:50.8% L1:44.1% BI: 5.0%
[libx264 @ 0x5589d9b4cb40] 8x8 transform intra:56.4% inter:82.5%
[libx264 @ 0x5589d9b4cb40] coded y,uvDC,uvAC intra: 41.7% 64.7% 6.3% inter: 14.9% 20.9% 0.0%
[libx264 @ 0x5589d9b4cb40] i16 v,h,dc,p: 15% 27% 9% 49%
[libx264 @ 0x5589d9b4cb40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 23% 17% 6% 7% 6% 8% 7% 6%
[libx264 @ 0x5589d9b4cb40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 27% 11% 5% 9% 8% 9% 5% 4%
[libx264 @ 0x5589d9b4cb40] i8c dc,h,v,p: 54% 22% 14% 9%
[libx264 @ 0x5589d9b4cb40] Weighted P-Frames: Y:18.9% UV:5.9%
[libx264 @ 0x5589d9b4cb40] ref P L0: 62.8% 16.2% 15.4% 4.9% 0.8%
[libx264 @ 0x5589d9b4cb40] ref B L0: 91.0% 7.4% 1.6%
[libx264 @ 0x5589d9b4cb40] ref B L1: 97.4% 2.6%
[libx264 @ 0x5589d9b4cb40] kb/s:440.62