Recherche avancée
Autres articles (98)
-
Amélioration de la version de base
13 septembre 2013Jolie sélection multiple
Le plugin Chosen permet d’améliorer l’ergonomie des champs de sélection multiple. Voir les deux images suivantes pour comparer.
Il suffit pour cela d’activer le plugin Chosen (Configuration générale du site > Gestion des plugins), puis de configurer le plugin (Les squelettes > Chosen) en activant l’utilisation de Chosen dans le site public et en spécifiant les éléments de formulaires à améliorer, par exemple select[multiple] pour les listes à sélection multiple (...) -
Menus personnalisés
14 novembre 2010, parMediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
Menus créés à l’initialisation du site
Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...) -
Soumettre bugs et patchs
10 avril 2011Un logiciel n’est malheureusement jamais parfait...
Si vous pensez avoir mis la main sur un bug, reportez le dans notre système de tickets en prenant bien soin de nous remonter certaines informations pertinentes : le type de navigateur et sa version exacte avec lequel vous avez l’anomalie ; une explication la plus précise possible du problème rencontré ; si possibles les étapes pour reproduire le problème ; un lien vers le site / la page en question ;
Si vous pensez avoir résolu vous même le bug (...)
Sur d’autres sites (7877)
-
Getting small file size from ffmpeg [duplicate]
20 février 2020, par sukachI am not an ffmpeg expert. I am trying to get some movies converted to a smaller DIVX file for a cheap portable DVD player for a family trip. The movies are for my kids so I’m not too concerned about quality.
The DVD player is a 10.1", 1024x600 screen. It says it supports DIVX/MPEG2 files. It took me a lot of experimentation to get the right ffmpeg settings to even get it to work, but I found another answer that provided a very complex set of parameters that ultimately worked.
I have converted about 20 movies with this setting and every one results in a file size of 1.1GB. I have tried different file sizes and crf settings and it is the same every time.
Here is an example. First, the original file :
General
Complete name : Charlotte's Web.m4v
Format : MPEG-4
Format profile : Base Media / Version 2
Codec ID : mp42 (isom/iso2/avc1/mp41)
File size : 4.17 GiB
Duration : 1 h 36 min
Overall bit rate mode : Variable
Overall bit rate : 6 161 kb/s
Movie name : Charlotte's Web
Performer : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Director : Gary Winick
Actor : Julia Roberts / Steve Buscemi / John Cleese / Oprah Winfrey / Cedric the Entertainer / Reba McEntire / Kathy Bates / Robert Redford / Thomas Haden Church / André Benjamin / Dominic Scott Kay / Sam Shepard / Abraham Benrubi / Dakota Fanning / Kevin Anderson / Essie Davis / Siobhan Fallon / Louis Corbett / Robyn Arthur / Julian O'Donnell / Gary Basaraba / Nate Mooney / Nicholas Bell / Beau Bridges / Teague Rook / Julia Zemiro / Denise Kirby / Robert Plazek / Joseph Lotesto / Michael Roland / Don Bridges / Ian Watkin / Joel McCrary / Brian Stepanek / Fred Tatasciore / Bradley White / Maia Kirkpatrick / Jennessa Rose / Briana Hodge / Dale Azzopardi / Geoff Burgess / Ella Scott Lynch / Greg Marian / Stefano Mazzeo / Elizabeth Saunders
Screenplay by : Karey Kirkpatrick / Susannah Grant / Earl Hamner / Jr. / E.B. White
Producer : Julia Pistor / Jordan Kerner / Paul Neesan / Edgar M. Bronfman / Bernard Williams / Tony Winley
Genre : Comedy
ContentType : Short Film
Description : Wilbur the pig is scared of the end of the season, because he knows that come that time, he will end up on the dinner table. He hatches a plan with Charlotte, a spider that lives in his pen, to ensure that this will never happen.
Recorded date : UTC 2006-12-15 11:00:00
Encoded date : UTC 2017-01-23 02:37:54
Tagged date : UTC 2017-01-24 01:19:52
Writing application : HandBrake 1.0.1 2016122900
Cover : Yes
LongDescription : Wilbur the pig is scared of the end of the season, because he knows that come that time, he will end up on the dinner table. He hatches a plan with Charlotte, a spider that lives in his pen, to ensure that this will never happen.
ContentRating : mpaa|G|100|
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 1 h 36 min
Bit rate : 5 691 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 23.976 (24000/1001) FPS
Minimum frame rate : 23.974 FPS
Maximum frame rate : 23.981 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.114
Stream size : 3.86 GiB (92%)
Writing library : x264 core 148 r2708 86b7198
Encoding settings : cabac=1 / ref=3 / deblock=1:-1:-1 / analyse=0x3:0x113 / me=hex / subme=7 / psy=1 / psy_rd=1.00:0.15 / mixed_ref=1 / me_range=16 / chroma_me=1 / trellis=1 / 8x8dct=1 / cqm=0 / deadzone=21,11 / fast_pskip=1 / chroma_qp_offset=-3 / 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=240 / keyint_min=24 / scenecut=40 / intra_refresh=0 / rc_lookahead=40 / rc=crf / mbtree=1 / crf=22.0 / qcomp=0.60 / qpmin=0 / qpmax=69 / qpstep=4 / vbv_maxrate=25000 / vbv_bufsize=31250 / crf_max=0.0 / nal_hrd=none / filler=0 / ip_ratio=1.40 / aq=1:1.00
Encoded date : UTC 2017-01-23 02:37:54
Tagged date : UTC 2017-01-23 02:37:54
Color range : Limited
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
Menus : 4Here is the first encode settings :
ffmpeg -i "$1" -sn -c:a libmp3lame -ar 48000 -ab 128k -ac 2 -c:v mpeg4 -crf 24 -vtag DIVX -vf scale=1024x600:force_original_aspect_ratio=decrease -mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 30 -vb 1500k "$2"And the resulting mediainfo :
General
Complete name : Charlotte's Web (2006) - DIVX.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 1.11 GiB
Duration : 1 h 36 min
Overall bit rate : 1 644 kb/s
Movie name : Charlotte's Web
Director : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Genre : Comedy
Recorded date : UTC 2006-12-15 11:00:00
Writing application : Lavf57.56.100
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : DIVX
Codec ID/Info : Project Mayo
Codec ID/Hint : DivX 4
Duration : 1 h 36 min
Bit rate : 1 500 kb/s
Width : 1 024 pixels
Height : 576 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.106
Stream size : 1.02 GiB (91%)
Writing library : Lavc57.64.100Here was my attempt at a smaller file size (lower crf and smaller scale setting) :
ffmpeg -i "Charlotte's Web.m4v" -sn -c:a libmp3lame -ar 48000 -ab 128k -ac 2 -c:v mpeg4 -crf 30 -vtag DIVX -vf scale=800:480 -mbd rd -flags +mv4+aic -trellis 2 -cmp 2 -subcmp 2 -g 30 -vb 1500k "Charlotte's Web (2006) - DIVX 2.avi"And the resulting mediainfo :
General
Complete name : Charlotte's Web (2006) - DIVX 2.avi
Format : AVI
Format/Info : Audio Video Interleave
Format profile : OpenDML
File size : 1.11 GiB
Duration : 1 h 36 min
Overall bit rate : 1 643 kb/s
Movie name : Charlotte's Web
Director : Julia Roberts, Steve Buscemi, John Cleese, Oprah Winfrey, Cedric the Entertainer, Reba McEntire, Kathy Bates, Robert Redford, Thomas Haden Church, André Benjamin, Dominic Scott Kay, Sam Shepard, Abraham Benrubi, Dakota Fanning, Kevin Anderson, Essie Davis, Siobhan Fallon, Louis Corbett, Robyn Arthur, Julian O'Donnell, Gary Basaraba, Nate Mooney, Nicholas Bell, Beau Bridges, Teague Rook, Julia Zemiro, Denise Kirby, Robert Plazek, Joseph Lotesto, Michael Roland, Don Bridges, Ian Watkin, Joel McCrary, Brian Stepanek, Fred Tatasciore, Bradley White, Maia Kirkpatrick, Jennessa Rose, Briana Hodge, Dale Azzopardi, Geoff Burgess, Ella Scott Lynch, Greg Marian, Stefano Mazzeo, Elizabeth Saunders
Genre : Comedy
Recorded date : UTC 2006-12-15 11:00:00
Writing application : Lavf57.56.100
Video
ID : 0
Format : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, QPel : No
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Codec ID : DIVX
Codec ID/Info : Project Mayo
Codec ID/Hint : DivX 4
Duration : 1 h 36 min
Bit rate : 1 499 kb/s
Width : 800 pixels
Height : 480 pixels
Display aspect ratio : 16:9
Frame rate : 23.976 (24000/1001) FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Compression mode : Lossy
Bits/(Pixel*Frame) : 0.163
Stream size : 1.02 GiB (91%)
Writing library : Lavc57.64.100Same file size but lower resolution.
Any ideas on what the best settings to achieve my goal ?
-
Converting mkv to mp4 with ffmpeg sometimes loses video
9 décembre 2019, par RobertWHow can I create a universal as possible command line to convert mkv to mp4 ?
I fixed an issue where sometimes I’d lose audio (I think) and now I’m losing video.
This is the command I currently use (I’ve used a few, including-analyzeduration 1G -probesize 50Mbut I always end up with broken videos at some point) :if [[ $(pgrep -i ffmpeg) ]] ; then
echo "FFMPEG IS ALREADY RUNNING!"
else
echo "Starting mkv to mp4 conversion...";
for i in /var/www/html/uploads/Videos/*/*/*/*.mkv;
do name=$(echo "${i//.mkv/}");
echo "$name";
ffmpeg -n -i "$i" -c copy -c:a aac -movflags +faststart "${name}.mp4"; rm -v -f "${name}.mkv";
done
fiOutput of running that on the specific videos I’m losing picture on :
Starting mkv to mp4 conversion...
/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E02 - The Avatar Returns WEBDL-1080p
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9 (GCC)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
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 '/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E02 - The Avatar Returns WEBDL-1080p.mkv':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.29.100
Duration: 00:23:59.11, start: 0.000000, bitrate: 1258 kb/s
Stream #0:0(und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1440x1080, 1124 kb/s, SAR 1:1 DAR 4:3, 23.98 fps, 23.98 tbr, 16k tbn, 23.98 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
Output #0, mp4, to '/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E02 - The Avatar Returns WEBDL-1080p.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.29.100
Stream #0:0(und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1440x1080 [SAR 1:1 DAR 4:3], q=2-31, 1124 kb/s, 23.98 fps, 23.98 tbr, 16k tbn, 16k tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.54.100 aac
[mp4 @ 0x5583e9bdb8c0] Starting second pass: moving the moov atom to the beginning of the file
frame=34504 fps=1260 q=-1.0 Lsize= 221105kB time=00:23:59.08 bitrate=1258.6kbits/s speed=52.5x
video:197477kB audio:22515kB subtitle:0kB other streams:0kB global headers:2kB muxing overhead: 0.506059%
[aac @ 0x5583e9b3f140] Qavg: 562.538Edit :
The below command worked on similar files which the above command did not :
ffmpeg -n -i "$i" -c:v libx264 -c:a aac -movflags +faststartOutput :
Starting mkv to mp4 conversion...
/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E03 - The Southern Air Temple WEBDL-1080p
ffmpeg version 4.2.1 Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 9 (GCC)
configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzvbi --enable-avfilter --enable-avresample --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
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 '/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E03 - The Southern Air Temple WEBDL-1080p.mkv':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.29.100
Duration: 00:24:10.74, start: 0.000000, bitrate: 1354 kb/s
Stream #0:0(und): Video: hevc (Main 10) (hev1 / 0x31766568), yuv420p10le(tv), 1440x1080, 1124 kb/s, SAR 1:1 DAR 4:3, 23.98 fps, 23.98 tbr, 16k tbn, 23.98 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: eac3 (ec-3 / 0x332D6365), 48000 Hz, stereo, fltp, 224 kb/s (default)
Metadata:
handler_name : SoundHandler
Side data:
audio service type: main
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (eac3 (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x563ef7ad5a40] using SAR=1/1
[libx264 @ 0x563ef7ad5a40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
[libx264 @ 0x563ef7ad5a40] profile High 10, level 4.0, 4:2:0, 10-bit
[libx264 @ 0x563ef7ad5a40] 264 - core 157 r2980 34c06d1 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - 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=34 lookahead_threads=5 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=23 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=81 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to '/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E03 - The Southern Air Temple WEBDL-1080p.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2mp41
encoder : Lavf58.29.100
Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p10le, 1440x1080 [SAR 1:1 DAR 4:3], q=-1--1, 23.98 fps, 24k tbn, 23.98 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.54.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.54.100 aac
Side data:
audio service type: main
frame= 37 fps=0.0 q=0.0 size= 0kB time=00:00:02.09 bitrate= 0.2kbits/sframe= 72 fps= 72 q=0.0 size= 0kB time=00:00:03.54 bitrate= 0.1kbits/sframe= 103 fps= 68 q=40.0 size= 0kB time=00:00:04.84 bitrate= 0.1kbits/frame= 128 fps= 64 q=40.0 size= 0kB time=00:00:05.90 bitrate= 0.1kbits/frame= 169 fps= 66 q=40.0 size= 256kB time=00:00:07.59 bitrate= 276.2kbits/frame= 194 fps= 63 q=40.0 size= 512kB time=00:00:08.66 bitrate= 484.3kbits/frame= 241 fps= 68 q=40.0 size= 512kB time=00:00:10.60 bitrate= 395.6kbits/frame= 262 fps= 64 q=40.0 size= 512kB time=00:00:11.47 bitrate= 365.5kbits/frame= 284 fps= 62 q=40.0 size= 768kB time=00:00:12.37 bitrate= 508.5kbits/frame= 312 fps= 61 q=40.0 size= 768kB time=00:00:13.54 bitrate= 464.5kbits/frame= 341 fps= 61 q=40.0 size= 1024kB time=00:00:14.74 bitrate= 569.1kbits/frame= 373 fps= 61 q=40.0 size= 1280kB time=00:00:16.10 bitrate= 651.0kbits/frame= 398 fps= 60 q=40.0 size= 1280kB time=00:00:17.13 bitrate= 612.1kbits/frame= 419 fps= 59 q=40.0 size= 1536kB time=00:00:18.02 bitrate= 698.0kbits/frame= 433 fps= 56 q=40.0 size= 1792kB time=00:00:18.60 bitrate= 789.2kbits/frame= 456 fps= 55 q=40.0 size= 2048kB time=00:00:19.56 bitrate= 857.6kbits/frame= 469 fps= 53 q=40.0 size= 2304kB time=00:00:20.11 bitrate= 938.2kbits/frame= 486 fps= 52 q=40.0 size= 2816kB time=00:00:20.82 bitrate=1108.0kbits/frame= 504 fps= 51 q=40.0 size= 3328kB time=00:00:21.58 bitrate=1262.8kbits/frame= 522 fps= 51 q=40.0 size= 4096kB time=00:00:22.31 bitrate=1503.7kbits/frame= 545 fps= 50 q=40.0 size= 4608kB time=00:00:23.27 bitrate=1621.9kbits/frame= 570 fps= 50 q=40.0 size= 5120kB time=00:00:24.34 bitrate=1723.1kbits/frame= 597 fps= 50 q=40.0 size= 5632kB time=00:00:25.45 bitrate=1812.8kbits/frame= 619 fps= 50 q=40.0 size= 5888kB time=00:00:26.38 bitrate=1827.8kbits/frame= 650 fps= 50 q=40.0 size= 6400kB time=00:00:27.66 bitrate=1894.8kbits/frame= 674 fps= 50 q=40.0 size= 6656kB time=00:00:28.65 bitrate=1903.1kbits/frame= 701 fps= 50 q=40.0 size= 6656kB time=00:00:29.78 bitrate=1830.9kbits/frame= 734 fps= 51 q=40.0 size= 6912kB time=00:00:31.12 bitrate=1819.2kbits/frame= 754 fps= 50 q=40.0 size= 7168kB time=00:00:31.97 bitrate=1836.2kbits/frame= 778 fps= 50 q=40.0 size= 7168kB time=00:00:33.00 --SNIPPED--
bitrate=1518.4kbits/frame=34775 fps= 58 q=40.0 size= 268800kB time=00:24:10.64 bitrate=1518.0kbits/[mp4 @ 0x563ef7ad45c0] Starting second pass: moving the moov atom to the beginning of the file
frame=34783 fps= 58 q=-1.0 Lsize= 269967kB time=00:24:10.68 bitrate=1524.5kbits/s speed= 2.4x
video:246310kB audio:22689kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.359968%
[libx264 @ 0x563ef7ad5a40] frame I:651 Avg QP:27.80 size: 60711
[libx264 @ 0x563ef7ad5a40] frame P:10705 Avg QP:32.02 size: 14279
[libx264 @ 0x563ef7ad5a40] frame B:23427 Avg QP:37.64 size: 2554
[libx264 @ 0x563ef7ad5a40] consecutive B-frames: 6.9% 8.1% 5.5% 79.6%
[libx264 @ 0x563ef7ad5a40] mb I I16..4: 29.6% 60.8% 9.6%
[libx264 @ 0x563ef7ad5a40] mb P I16..4: 7.7% 10.0% 1.1% P16..4: 20.4% 3.8% 2.2% 0.0% 0.0% skip:54.8%
[libx264 @ 0x563ef7ad5a40] mb B I16..4: 0.6% 0.6% 0.1% B16..8: 13.6% 1.0% 0.2% direct: 0.7% skip:83.3% L0:41.6% L1:55.3% BI: 3.1%
[libx264 @ 0x563ef7ad5a40] 8x8 transform intra:54.2% inter:75.7%
[libx264 @ 0x563ef7ad5a40] coded y,uvDC,uvAC intra: 29.1% 50.3% 11.9% inter: 3.4% 4.5% 0.1%
[libx264 @ 0x563ef7ad5a40] i16 v,h,dc,p: 25% 29% 9% 38%
[libx264 @ 0x563ef7ad5a40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 18% 25% 4% 5% 5% 5% 5% 5%
[libx264 @ 0x563ef7ad5a40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 27% 14% 17% 7% 8% 9% 6% 7% 4%
[libx264 @ 0x563ef7ad5a40] i8c dc,h,v,p: 51% 22% 19% 9%
[libx264 @ 0x563ef7ad5a40] Weighted P-Frames: Y:2.7% UV:2.1%
[libx264 @ 0x563ef7ad5a40] ref P L0: 74.1% 16.9% 8.9% 0.1%
[libx264 @ 0x563ef7ad5a40] ref B L0: 85.8% 11.6% 2.6%
[libx264 @ 0x563ef7ad5a40] ref B L1: 96.8% 3.2%
[libx264 @ 0x563ef7ad5a40] kb/s:1390.85
[aac @ 0x563ef7ade100] Qavg: 572.905
removed '/var/www/html/uploads/Videos/TV/Avatar The Last Airbender/Season 1/Avatar The Last Airbender - S01E03 - The Southern Air Temple WEBDL-1080p.mkv'
Done transcoding! -
Lawful basis for processing personal data under GDPR with Matomo
30 avril 2018, par InnoCraftDisclaimer : this blog post has been written by digital analysts, not lawyers. The purpose of this article is to explain what is a lawful basis and which one you can use with Matomo in order to be GDPR compliant. This work comes from our interpretation of the following web page from the UK privacy commission : ICO. It cannot be considered as professional legal advice. So as GDPR, this information is subject to change. GDPR may be also known as DSGVO in German, BDAR in Lithuanian, RGPD in Spanish, French, Italian, Portuguese. This blog post contains public sector information licensed under the Open Government Licence v3.0.
The golden rule under GDPR is that you need to have a lawful basis in order to process personal data. Note that it is possible to not process personal data with Matomo. When you do not collect any personal data, then you do not need to determine a lawful basis and this article wouldn’t apply to you.
“If no lawful basis applies to your processing, your processing will be unlawful and in breach of the first principle.“
Source : ICO, based on article 6 of GDPR.
As you may process personal data in Matomo, you have to :
Even if you think you don’t process personal data, we recommend reading this post about personal data in Matomo (personal data may be hidden in many ways).
Note that if you are processing special category data (ethnic origin, politics, religion, trade union membership…) or criminal offence data ; extra responsibilities are applied, and we will not detail them in this blog post.
1 – Define a lawful basis
There are 6 different lawful bases all defined within article 6 of the GDPR official text :
- Consent : the data subject has given consent to the processing of his or her personal data for one or more specific purposes.
- Contract : processing is necessary for the performance of a contract to which the data subject is party or in order to take steps at the request of the data subject prior to entering into a contract.
- Legal obligation : processing is necessary for compliance with a legal obligation to which the controller is subject.
- Vital interests : processing is necessary in order to protect the vital interests of the data subject or of another natural person.
- Public task : processing is necessary for the performance of a task carried out in the public interest or in the exercise of an official authority vested in the controller.
- Legitimate interests : processing is necessary for the purposes of the legitimate interests pursued by the controller or by a third party ; except where such interests are overridden by the interests or fundamental rights and freedoms of the data subject which require protection of personal data, in particular where the data subject is a child.
As you can see, most of them are not applicable to Matomo. As ICO is mentioning it within their documentation :
“In many cases you are likely to have a choice between using legitimate interests or consent.”
“Consent” or “Legitimate interests” : which lawful basis is the best when using Matomo ?
Well, there is no right or wrong answer here.
In order to make this choice, ICO listed on their website different questions you should keep in mind :
- Who does the processing benefit ?
- Would individuals expect this processing to take place ?
- What is your relationship with the individual ?
- Are you in a position of power over them ?
- What is the impact of the processing on the individual ?
- Are they vulnerable ?
- Are some of the individuals concerns likely to object ?
- Are you able to stop the processing at any time on request ?
From our perspective, “Legitimate interests” should be used in most of the cases as :
- The processing benefits to the owner of the website and not to a third party company.
- A user expects to have their data kept by the website itself.
- Matomo provides many features in order to show how personal data is processed and how users can exercise their rights.
- As the data is not used for profiling, the impact of processing personal data is very low.
But once more, it really depends ; if you are processing personal data which may represent a risk to the final user, then getting consent is for us the right lawful basis.
If you are not sure, at the time of writing ICO is providing a tool in order to help you make this decision :
Note that once you choose a lawful basis, it is highly recommended not to switch to another unless you have a good reason.
What are the rights that a data subject can exercise ?
According to the lawful basis you choose for processing personal data with Matomo, your users will be able to exercise different rights :
Right to be informed Right of access Right to erasure Right to portability Right to object Right to withdraw consent Legitimate interests X X X X Consent X X X X X - Right to be informed : whatever the lawful basis you choose, you need to inform your visitor about it within your privacy notice.
- Right of access : as described in article 15 of GDPR. Your visitor has the right to access the personal data you are processing about them. You can exercise their right directly within the page “GDPR Tools” in your Matomo.
- Right to erasure : it means that a visitor will be able to ask you to erase all their data. You can exercise the right to erasure directly within the page “GDPR Tools” in your Matomo.
- Right to portability : it means that you need to export the data which concern the individual in a machine-readable format and provide them with their personal data. You can exercise their right directly within the page “GDPR Tools” in your Matomo.
- Right to object : it means that your visitor has the right to say no to the processing of their personal data. In order to exercise this right, you need to implement the opt-out feature on your website.
- Right to withdraw consent : it means that your visitor can remove their consent at any time. We developed a feature in order to do just that. You can learn more by opening the page “Privacy > Asking for consent” in your Matomo.
2 – Document your choice
Once you choose “Legitimate interests” or “Consent” lawful basis, you will have some obligations to fulfill. From our interpretation, “Legitimate interests” means writing more documentation, “Consent” means a more technical approach.
What should I do if I am processing personal data with Matomo based on “Legitimate interests ?
ICO is providing a checklist for “Legitimate interests”, below is our interpretation :
- Check that legitimate interests is the most appropriate lawful basis.
Our interpretation : document and justify why you choose this lawful basis in particular. This tool from ICO can help you.
- Understand your responsibility to protect the individual’s interests.
Our interpretation : you need to take all the measures in order to protect your users privacy and data security. Please refer to our guide in order to secure your Matomo installation.
- Conduct a legitimate interests assessment (LIA) and keep a record of it to ensure that you can justify your decision. This document is composed of a set of questions on those 3 key concerns : 1) purpose, 2) necessity, 3) balancing.
1) Purpose :
- Why do you want to process the data – what are you trying to achieve ?
- Who benefits from the processing ? In what way ?
- Are there any wider public benefits to the processing ?
- How important are those benefits ?
- What would the impact be if you couldn’t go ahead ?
- Would your use of the data be unethical or unlawful in any way ?
2) Necessity :
- Does this processing actually help to further that interest ?
- Is it a reasonable way to go about it ?
- Is there another less intrusive way to achieve the same result ?
3) Balancing :
- What is the nature of your relationship with the individual ?
- Is any of the data particularly sensitive or private ?
- Would people expect you to use their data in this way ?
- Are you happy to explain it to them ?
- Are some people likely to object or find it intrusive ?
- What is the possible impact on the individual ?
- How big an impact might it have on them ?
- Are you processing children’s data ?
- Are any of the individuals vulnerable in any other way ?
- Can you adopt any safeguards to minimise the impact ?
- Can you offer an opt-out ?
- Identify the relevant legitimate interests.
- Check that the processing is necessary and there is no less intrusive way to achieve the same result.
- Perform a balancing test, and be confident that the individual’s interests do not override those legitimate interests.
- Use individuals’ data in ways they would reasonably expect, unless you have a very good reason.
Our interpretation : use those data to improve user experience for example.
- Do not use people’s data in ways they would find intrusive or which could cause them harm, unless you have a very good reason.
Our interpretation : ask yourself if this data is representing a risk for the individuals.
- If you process children’s data, take extra care to make sure you protect their interests.
- Consider safeguards to reduce the impact where possible.
Our interpretation : Check if your web hosting provider is providing appropriate safeguards.
- Consider whether you can offer an opt out.
Our interpretation : Matomo is providing you the opt-out feature.
- If your LIA identifies a significant privacy impact, consider whether you also need to conduct a DPIA.
Our interpretation : A DPIA can easily be conducted by using this software from the French privacy commission.
- Regularly review your LIA and update it when circumstances change.
- Include information about your legitimate interests in your privacy information.
As you see, going for “Legitimate interests” requires a lot of written documentation. Let’s see how “Consent” differ.
What should I do if I am processing personal data with Matomo based on “Consent” ?
As previously mentioned, using “Consent” rather than “Legitimate interests” is more technical but less intense in terms of documentation. Like for “Legitimate interests”, ICO is providing a checklist for “Consent” which is divided into 3 key categories : 1) asking for consent, 2) recording consent, and 3) managing consent.
- Asking for consent :
- Check that consent is the most appropriate lawful basis for processing.
- Make the request for consent prominent and separate from your terms and conditions.
- Ask people to positively opt in. Don’t use pre-ticked boxes or any other type of default consent.
- Use clear, plain language that is easy to understand.
- Specify why you want the data and what you are going to do with it.
- Give individual (‘granular’) options to consent separately to different purposes and types of processing.
- Name your organisation and any third party controllers who will be relying on the consent.
- Tell individuals they can withdraw their consent.
- Ensure that individuals can refuse to consent without detriment.
- Avoid making consent a precondition of a service.
- If you offer online services directly to children, only seek consent if you have age-verification measures (and parental-consent measures for younger children) in place.
- Recording consent :
- Keep a record of when and how you got consent from the individual.
- Keep a record of exactly what you told them at the time.
- Managing consent :
- Regularly review consents to check that the relationship, the processing and the purposes have not changed.
- Have processes in place to refresh consent at appropriate intervals, including any parental consent.
- Consider using privacy dashboards or other preference-management tools as a matter of good practice.
- Make it easy for individuals to withdraw their consent at any time, and publicise how to do so.
- Act on withdrawals of consent as soon as you can.
- Don’t penalise individuals who wish to withdraw consent.
3 – Inform your visitor about it in a privacy notice
Privacy notices are an important part within the GDPR process. Read our blog post dedicated to privacy notices to learn more.
We really hope you enjoyed reading this blog post. Please have a look at our Matomo GDPR guide for more information.
The post Lawful basis for processing personal data under GDPR with Matomo appeared first on Analytics Platform - Matomo.
Syndiquer tout le site
