
Recherche avancée
Médias (1)
-
Publier une image simplement
13 avril 2011, par ,
Mis à jour : Février 2012
Langue : français
Type : Video
Autres articles (44)
-
(Dés)Activation de fonctionnalités (plugins)
18 février 2011, parPour gérer l’ajout et la suppression de fonctionnalités supplémentaires (ou plugins), MediaSPIP utilise à partir de la version 0.2 SVP.
SVP permet l’activation facile de plugins depuis l’espace de configuration de MediaSPIP.
Pour y accéder, il suffit de se rendre dans l’espace de configuration puis de se rendre sur la page "Gestion des plugins".
MediaSPIP est fourni par défaut avec l’ensemble des plugins dits "compatibles", ils ont été testés et intégrés afin de fonctionner parfaitement avec chaque (...) -
Activation de l’inscription des visiteurs
12 avril 2011, parIl est également possible d’activer l’inscription des visiteurs ce qui permettra à tout un chacun d’ouvrir soit même un compte sur le canal en question dans le cadre de projets ouverts par exemple.
Pour ce faire, il suffit d’aller dans l’espace de configuration du site en choisissant le sous menus "Gestion des utilisateurs". Le premier formulaire visible correspond à cette fonctionnalité.
Par défaut, MediaSPIP a créé lors de son initialisation un élément de menu dans le menu du haut de la page menant (...) -
Publier sur MédiaSpip
13 juin 2013Puis-je poster des contenus à partir d’une tablette Ipad ?
Oui, si votre Médiaspip installé est à la version 0.2 ou supérieure. Contacter au besoin l’administrateur de votre MédiaSpip pour le savoir
Sur d’autres sites (5678)
-
ffmpeg / avconv Unrecognized option 'target=vcd'
2 février 2023, par Paul NeuwirthI get following error


Unrecognized option 'target=vcd'.
Error splitting the argument list: Option not found



running


ffmpeg -i input.ts -target=vcd output.mpg



or


avconv -i input.ts -target=vcd output.mpg



(or any other target like "pal-dvd", like stated in the man-file)


version info ffmpeg :




ffmpeg version 4.4 Copyright (c) 2000-2021 the FFmpeg developers
built with gcc 7 (SUSE Linux)
configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —enable-version3 —disable-openssl —enable-avresample —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libbs2b —enable-libcelt —enable-libcdio —enable-libdav1d —enable-libdc1394 —enable-libdrm —enable-libfontconfig —enable-libfreetype —enable-libfribidi —enable-libgsm —enable-libjack —enable-libmp3lame —enable-libopenjpeg —enable-libopenmpt —enable-libopus —enable-libpulse —enable-libspeex —enable-libssh —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvmaf —enable-libvorbis —enable-libv4l2 —enable-libvpx —enable-libwebp —enable-libxml2 —enable-libzimg —enable-libzvbi —enable-libmfx —enable-vaapi —enable-vdpau —enable-version3 —enable-libfdk-aac-dlopen —enable-nonfree —enable-libvo-amrwbenc —enable-libx264 —enable-libx265 —enable-librtmp —enable-libxvid
libavutil 56. 70.100 / 56. 70.100
libavcodec 58.134.100 / 58.134.100
libavformat 58. 76.100 / 58. 76.100
libavdevice 58. 13.100 / 58. 13.100
libavfilter 7.110.100 / 7.110.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 9.100 / 5. 9.100
libswresample 3. 9.100 / 3. 9.100
libpostproc 55. 9.100 / 55. 9.100




version info avconv




avconv version 12.3, Copyright (c) 2000-2018 the Libav developers

built on Mar 26 2018 12:39 with gcc 7 (SUSE Linux) configuration :
—prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —incdir=/usr/include/libav —enable-pic —disable-yasm WARNING : library configuration mismatch avutil configuration :
—prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid avcodec configuration : —prefix=/usr —libdir=/usr/lib64
—shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid avformat configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid avdevice configuration : —prefix=/usr —libdir=/usr/lib64
—shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid avfilter configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid avresample configuration : —prefix=/usr —libdir=/usr/lib64
—shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid swscale configuration : —prefix=/usr —libdir=/usr/lib64 —shlibdir=/usr/lib64 —incdir=/usr/include/ffmpeg —extra-cflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —optflags='-fmessage-length=0 -grecord-gcc-switches -O2 -Wall -D_FORTIFY_SOURCE=2 -fstack-protector-strong -funwind-tables -fasynchronous-unwind-tables -fstack-clash-protection -g' —disable-htmlpages —enable-pic —disable-stripping —enable-shared —disable-static —enable-gpl —disable-openssl —enable-avresample —enable-libcdio —enable-gnutls —enable-ladspa —enable-libass —enable-libbluray —enable-libcelt —enable-libcdio —enable-libdc1394 —enable-libfreetype —enable-libgsm —enable-libmp3lame —enable-libopenjpeg —enable-libopus —enable-libpulse —enable-libspeex —enable-libtheora —enable-libtwolame —enable-libvidstab —enable-libvorbis —enable-libvpx —enable-libwebp —enable-libzimg —enable-libzvbi —enable-vaapi —enable-vdpau —enable-libopencore-amrnb —enable-libopencore-amrwb —enable-version3 —enable-libx264 —enable-libx265 —enable-libxvid libavutil 55. 78.100 / 55. 78.100 libavcodec 57.107.100 /
57.107.100 libavformat 57. 83.100 / 57. 83.100 libavdevice 57. 10.100 / 57. 10.100 libavfilter 6.107.100 / 6.107.100 libavresample 3. 7. 0 / 3. 7. 0 libswscale 4. 8.100 / 4.
8.100



despite solving the problem, I'd be happy with any other solution to compress video to pal-dvd or pal-vcd standard


I tried re-encoding a mpeg-2 video using avconv and/or ffmpeg to target pal-dvd or pal-vcd or even just vcd or dvd.
manpage states option -target as main option :




-target type (output)



Specify target file type ("vcd", "svcd", "dvd", "dv", "dv50"). type may be prefixed with "pal-", "ntsc-" or "film-" to use the corresponding standard. All the format options
(bitrate, codecs, buffer sizes) are then set automatically. You can just type :


avconv -i myfile.avi -target vcd /tmp/vcd.mpg


Nevertheless you can specify additional options as long as you know they do not conflict with the standard, as in :


avconv -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg




-
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



-
FFMPEG command runs in terminal but not by subprocess
1er septembre 2022, par BasiliqueI am trying to run a bash command using the
subprocess
module from withinpython 3.10
.

The bash command is :


ffmpeg -framerate 1 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4



In terminal the command runs fine. Here is the output :


ffmpeg version 4.2.7-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
 configuration: --prefix=/usr --extra-version=0ubuntu0.1 --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-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
 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, image2, from '*.png':
 Duration: 00:16:39.00, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: png, rgba(pc), 895x332 [SAR 3937:3937 DAR 895:332], 1 fps, 1 tbr, 1 tbn, 1 tbc
Stream mapping:
 Stream #0:0 -> #0:0 (png (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x55726ab95d00] using SAR=1/1
[libx264 @ 0x55726ab95d00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2 AVX512
[libx264 @ 0x55726ab95d00] profile High, level 2.2
[libx264 @ 0x55726ab95d00] 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=10 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=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=1.40 aq=1:1.00
Output #0, mp4, to 'out.mp4':
 Metadata:
 encoder : Lavf58.29.100
 Stream #0:0: Video: h264 (libx264) (avc1 / 0x31637661), yuv420p, 894x332 [SAR 1:1 DAR 447:166], q=-1--1, 1 fps, 16384 tbn, 1 tbc
 Metadata:
 encoder : Lavc58.54.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 173 fps=0.0 q=17.0 size= 512kB time=00:01:56.00 bitrate= 36.2kbits/frame= 351 fps=350 q=17.0 size= 1536kB time=00:04:54.00 bitrate= 42.8kbits/frame= 517 fps=343 q=17.0 size= 2560kB time=00:07:40.00 bitrate= 45.6kbits/frame= 725 fps=361 q=17.0 size= 3328kB time=00:11:08.00 bitrate= 40.8kbits/frame= 913 fps=364 q=17.0 size= 4352kB time=00:14:16.00 bitrate= 41.6kbits/frame= 999 fps=361 q=-1.0 Lsize= 4986kB time=00:16:36.00 bitrate= 41.0kbits/s speed= 360x 
video:4974kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.241361%
[libx264 @ 0x55726ab95d00] frame I:4 Avg QP: 6.12 size: 24072
[libx264 @ 0x55726ab95d00] frame P:346 Avg QP:12.94 size: 5708
[libx264 @ 0x55726ab95d00] frame B:649 Avg QP:18.19 size: 4655
[libx264 @ 0x55726ab95d00] consecutive B-frames: 5.8% 16.0% 20.1% 58.1%
[libx264 @ 0x55726ab95d00] mb I I16..4: 59.1% 10.6% 30.4%
[libx264 @ 0x55726ab95d00] mb P I16..4: 5.6% 0.6% 2.2% P16..4: 10.5% 4.3% 2.3% 0.0% 0.0% skip:74.5%
[libx264 @ 0x55726ab95d00] mb B I16..4: 2.2% 0.1% 1.7% B16..8: 16.9% 4.8% 1.6% direct: 1.1% skip:71.5% L0:50.9% L1:45.2% BI: 3.9%
[libx264 @ 0x55726ab95d00] 8x8 transform intra:5.9% inter:10.4%
[libx264 @ 0x55726ab95d00] coded y,uvDC,uvAC intra: 20.1% 18.3% 17.3% inter: 4.7% 4.7% 4.6%
[libx264 @ 0x55726ab95d00] i16 v,h,dc,p: 66% 33% 1% 0%
[libx264 @ 0x55726ab95d00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 8% 73% 0% 0% 0% 0% 0% 0%
[libx264 @ 0x55726ab95d00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 31% 31% 2% 3% 2% 4% 2% 3%
[libx264 @ 0x55726ab95d00] i8c dc,h,v,p: 73% 23% 3% 0%
[libx264 @ 0x55726ab95d00] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0x55726ab95d00] ref P L0: 57.2% 1.5% 24.3% 17.0%
[libx264 @ 0x55726ab95d00] ref B L0: 69.6% 24.8% 5.6%
[libx264 @ 0x55726ab95d00] ref B L1: 92.4% 7.6%
[libx264 @ 0x55726ab95d00] kb/s:40.78



In my python script I tried the following solutions :


video_cmd = """ffmpeg -framerate 1 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4"""

subprocess.run(shlex.split(video_cmd), shell=False, cwd=path_viz, stderr=subprocess.STDOUT, check=True, text=False)

subprocess.run(video_cmd, shell=True, cwd=path_viz, stderr=subprocess.STDOUT, check=True, text=False)



as well as the solution proposed for this similar question


subprocess.Popen(video_cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)



None of them worked. Apparently, the right command is run (output of the
check_out
function) :

Command 'ffmpeg -y -framerate 1 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4' returned non-zero exit status 1.



the first part of the job (up to
Stream mapping:
) is done also correctly :

fmpeg version 4.3 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 7.3.0 (crosstool-NG 1.23.0.449-a04d0)
 configuration: --prefix=/home/rsghazanfari/anaconda3/envs/_cuda --cc=/opt/conda/conda-bld/ffmpeg_1597178665428/_build_env/bin/x86_64-conda_cos6-linux-gnu-cc --disable-doc --disable-openssl --enable-avresample --enable-gnutls --enable-hardcoded-tables --enable-libfreetype --enable-libopenh264 --enable-pic --enable-pthreads --enable-shared --disable-static --enable-version3 --enable-zlib --enable-libmp3lame
 libavutil 56. 51.100 / 56. 51.100
 libavcodec 58. 91.100 / 58. 91.100
 libavformat 58. 45.100 / 58. 45.100
 libavdevice 58. 10.100 / 58. 10.100
 libavfilter 7. 85.100 / 7. 85.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 7.100 / 5. 7.100
 libswresample 3. 7.100 / 3. 7.100
Input #0, image2, from '*.png':
 Duration: 00:16:39.00, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: png, rgba(pc), 895x332 [SAR 3937:3937 DAR 895:332], 1 fps, 1 tbr, 1 tbn, 1 tbc



but it then pops up the following error :


Unknown encoder 'libx264'
Traceback (most recent call last):
 File "/home/rsgh/anaconda3/envs/_cuda/lib/python3.10/code.py", line 90, in runcode
 exec(code, self.locals)
 File "<input />", line 1, in <module>
 File "/home/rsgh/anaconda3/envs/_cuda/lib/python3.10/subprocess.py", line 524, in run
 raise CalledProcessError(retcode, process.args,

subprocess.CalledProcessError: Command 'ffmpeg -y -framerate 1 -pattern_type glob -i '*.png' -c:v libx264 -pix_fmt yuv420p -vf "crop=trunc(iw/2)*2:trunc(ih/2)*2" out.mp4' returned non-zero exit status 1.
</module>


Any ideas of why this error is produced in python while in terminal it runs fine ? Thank you in advance.


PS :
ffmpeg -version
outputs :

ffmpeg version 4.2.7-0ubuntu0.1 Copyright (c) 2000-2022 the FFmpeg developers
built with gcc 9 (Ubuntu 9.4.0-1ubuntu1~20.04.1)
configuration: --prefix=/usr --extra-version=0ubuntu0.1 --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-opencl --enable-opengl --enable-sdl2 --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-nvenc --enable-chromaprint --enable-frei0r --enable-libx264 --enable-shared
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



ubuntu version :


Distributor ID: Ubuntu
Description: Ubuntu 20.04.4 LTS
Release: 20.04
Codename: focal