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Collections - Formulaire de création rapide
19 février 2013, par
Mis à jour : Février 2013
Langue : français
Type : Image
Autres articles (89)
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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 -
Initialisation de MediaSPIP (préconfiguration)
20 février 2010, parLors de l’installation de MediaSPIP, celui-ci est préconfiguré pour les usages les plus fréquents.
Cette préconfiguration est réalisée par un plugin activé par défaut et non désactivable appelé MediaSPIP Init.
Ce plugin sert à préconfigurer de manière correcte chaque instance de MediaSPIP. Il doit donc être placé dans le dossier plugins-dist/ du site ou de la ferme pour être installé par défaut avant de pouvoir utiliser le site.
Dans un premier temps il active ou désactive des options de SPIP qui ne le (...) -
Les formats acceptés
28 janvier 2010, parLes commandes suivantes permettent d’avoir des informations sur les formats et codecs gérés par l’installation local de ffmpeg :
ffmpeg -codecs ffmpeg -formats
Les format videos acceptés en entrée
Cette liste est non exhaustive, elle met en exergue les principaux formats utilisés : h264 : H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 m4v : raw MPEG-4 video format flv : Flash Video (FLV) / Sorenson Spark / Sorenson H.263 Theora wmv :
Les formats vidéos de sortie possibles
Dans un premier temps on (...)
Sur d’autres sites (6636)
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how to remove duplicated frame from 00:00:00,00 to 00:00:00,25 section not overall with mpdecimate filter ?
19 octobre 2018, par cool jobshow to remove duplicated frame from 00:00:00,00 to 00:00:00,25 (00frame 25frames)section not overall with mpdecimate filter ??
normally H264 video have some duplicated frames on video start section ..i have tried like this ,
1) ./ffmpeg -i cated_2-3.UMMJI.MTS -map 0:0 -c:v prores_ks -profile:v 1 -qscale:v 8 -s 1920x1080 -r 29.97 -top 1 -c:a pcm_s16le -map 0:1 -filter:a:0 "pan=mono|c0=c0" -map 0:1 -filter:a:1 "pan=mono|c0=c1" -metadata:s encoder="Apple ProRes 422 LT" -filter_complex "[0]split=2[a][b];[a]trim=end_frame=26,mpdecimate[a];[b]trim=start_frame=25,setpts=PTS-STARTPTS[b];[a][b]concat=n=2:v=1:a=0" -vsync vfr -vf blackdetect=d=0.1:pix_th=.1 cated_2-3.UMMJI_MTS_mpdecimate26_section.mov
and tried to check black_frame on out prores mov file
2)./ffmpeg -i cated_2-3.UMMJI_MTS_mpdecimate26_section.mov -vf blackdetect=d=0.1:pix_th=.1 test.mov
then , will be shown like below
macmini-master:1. two_file_test khan$ ./ffmpeg -i cated_2-3.UMMJI_MTS_mpdecimate26_section.mov -vf blackdetect=d=0.1:pix_th=.1 test.mov
ffmpeg version N-92108-ge08a876e67-tessus https://evermeet.cx/ffmpeg/ Copyright (c) 2000-2018 the FFmpeg developers
built with Apple LLVM version 10.0.0 (clang-1000.11.45.2)
configuration: --cc=/usr/bin/clang --prefix=/opt/ffmpeg --extra-version=tessus --enable-avisynth --enable-fontconfig --enable-gpl --enable-libaom --enable-libass --enable-libbluray --enable-libfreetype --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libmysofa --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopus --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-version3 --pkg-config-flags=--static --disable-ffplay
libavutil 56. 19.101 / 56. 19.101
libavcodec 58. 32.100 / 58. 32.100
libavformat 58. 18.104 / 58. 18.104
libavdevice 58. 4.105 / 58. 4.105
libavfilter 7. 33.100 / 7. 33.100
libswscale 5. 2.100 / 5. 2.100
libswresample 3. 2.100 / 3. 2.100
libpostproc 55. 2.100 / 55. 2.100
Guessed Channel Layout for Input Stream #0.1 : mono
Guessed Channel Layout for Input Stream #0.2 : mono
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'cated_2-3.UMMJI_MTS_mpdecimate26_section.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.18.104
Duration: 00:25:12.58, start: 0.000000, bitrate: 86198 kb/s
Stream #0:0(eng): Video: prores (apcs / 0x73637061), yuv422p10le(tv, top first), 1920x1080, 84662 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 11988 tbn, 11988 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Apple ProRes 422 LT
Stream #0:1(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(eng): Audio: pcm_s16le (sowt / 0x74776F73), 48000 Hz, mono, s16, 768 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (prores (native) -> h264 (libx264))
Stream #0:1 -> #0:1 (pcm_s16le (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0x7f8eb2804200] using SAR=1/1
[libx264 @ 0x7f8eb2804200] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x7f8eb2804200] profile High 4:2:2, level 4.0, 4:2:2, 8-bit
[libx264 @ 0x7f8eb2804200] 264 - core 157 r2935 545de2f - 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, mov, to 'test.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.18.104
Stream #0:0(eng): Video: h264 (libx264) (avc1 / 0x31637661), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 11988 tbn, 29.97 tbc (default)
Metadata:
handler_name : VideoHandler
encoder : Lavc58.32.100 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, mono, fltp, 69 kb/s (default)
Metadata:
handler_name : SoundHandler
encoder : Lavc58.32.100 aac
frame= 8224 fps= 21 q=29.0 size= 86528kB time=00:04:34.49 bitrate=2582.3kbits/s dup=19 drop=0 speed=0.689xas you can see duplicated frame just changed to black frame , not removed
this MTS file have 19 duplicated frames !
also i have checked in FCPX and count how many dupicated frame on out prores mov file ... -
Recording desktop with gdigrab ffmeg to mp4 file with too high video_size don't working
22 septembre 2021, par tagryI try to recording my desktop with ffmpeg using the command :



ffmpeg -f gdigrab -framerate 10 -video_size 1920x1200 -i desktop -pix_fmt yuv420p -vcodec libx264 -preset ultrafast output.mp4




The problem is when the video_size option is higher than some size, (for example height higher 1089), the video can't be read with Windows Media. I noticed that with this high size, the video which be recorded doesn't have informations about size. I don't understand why the record don't work with a too big size. If somebody can help me. 
Thank you very much and very sorry for my English.



[edit]



ffmpeg version N-78758-g5156578 Copyright (c) 2000-2016 the FFmpeg developers
 built with gcc 5.3.0 (GCC)
 configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
 libavutil 55. 19.100 / 55. 19.100
 libavcodec 57. 27.100 / 57. 27.100
 libavformat 57. 26.100 / 57. 26.100
 libavdevice 57. 0.101 / 57. 0.101
 libavfilter 6. 37.100 / 6. 37.100
 libswscale 4. 0.100 / 4. 0.100
 libswresample 2. 0.101 / 2. 0.101
 libpostproc 54. 0.100 / 54. 0.100
[gdigrab @ 00861860] Capturing whole desktop as 1920x1200x16 at (0,0)
Input #0, gdigrab, from 'desktop':
 Duration: N/A, start: 1467631308.011542, bitrate: 368644 kb/s
 Stream #0:0: Video: bmp, rgb555le, 1920x1200, 368644 kb/s, 10 tbr, 1000k tbn, 10 tbc
[libx264 @ 00863fe0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 00863fe0] profile Constrained Baseline, level 5.0
[libx264 @ 00863fe0] 264 - core 148 r2665 a01e339 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=10 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'output.mp4':
 Metadata:
 encoder : Lavf57.26.100
 Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1200, q=-1--1, 10 fps, 10240 tbn, 10 tbc
 Metadata:
 encoder : Lavc57.27.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
 Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 6 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x 
frame= 11 fps= 11 q=10.0 size= 277kB time=00:00:00.40 bitrate=5664.4kbits/s speed=0.396x 
frame= 16 fps= 11 q=9.0 size= 393kB time=00:00:00.90 bitrate=3578.8kbits/s speed=0.595x 
frame= 21 fps= 10 q=9.0 size= 429kB time=00:00:01.40 bitrate=2507.4kbits/s speed=0.695x 
frame= 26 fps= 10 q=9.0 size= 429kB time=00:00:01.90 bitrate=1849.3kbits/s speed=0.754x 
frame= 31 fps= 10 q=18.0 size= 430kB time=00:00:02.40 bitrate=1466.1kbits/s speed=0.793x 
frame= 36 fps= 10 q=10.0 size= 511kB time=00:00:02.90 bitrate=1442.6kbits/s speed=0.823x 
frame= 41 fps= 10 q=10.0 size= 562kB time=00:00:03.40 bitrate=1353.0kbits/s speed=0.844x 
frame= 46 fps= 10 q=10.0 size= 565kB time=00:00:03.90 bitrate=1185.9kbits/s speed=0.861x 
frame= 51 fps= 10 q=9.0 size= 575kB time=00:00:04.40 bitrate=1070.8kbits/s speed=0.874x 
frame= 56 fps= 10 q=12.0 size= 582kB time=00:00:04.90 bitrate= 972.3kbits/s speed=0.885x 
frame= 61 fps= 10 q=10.0 size= 598kB time=00:00:05.40 bitrate= 907.7kbits/s speed=0.893x 
frame= 66 fps= 10 q=10.0 size= 601kB time=00:00:05.90 bitrate= 834.5kbits/s speed=0.901x 
frame= 71 fps= 10 q=10.0 size= 603kB time=00:00:06.40 bitrate= 772.3kbits/s speed=0.907x 
frame= 76 fps= 10 q=12.0 size= 606kB time=00:00:06.90 bitrate= 719.8kbits/s speed=0.913x 
frame= 81 fps= 10 q=10.0 size= 625kB time=00:00:07.40 bitrate= 691.8kbits/s speed=0.917x 
frame= 86 fps= 10 q=10.0 size= 629kB time=00:00:07.90 bitrate= 652.2kbits/s speed=0.922x 
frame= 91 fps= 10 q=12.0 size= 634kB time=00:00:08.40 bitrate= 618.2kbits/s speed=0.926x 
frame= 97 fps= 10 q=10.0 size= 757kB time=00:00:09.00 bitrate= 689.3kbits/s speed=0.94x 
frame= 100 fps= 10 q=-1.0 Lsize= 772kB time=00:00:10.00 bitrate= 632.8kbits/s speed=0.998x 
video:771kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.153975%
[libx264 @ 00863fe0] frame I:1 Avg QP:20.00 size:242961
[libx264 @ 00863fe0] frame P:99 Avg QP:10.67 size: 5517
[libx264 @ 00863fe0] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 00863fe0] mb P I16..4: 0.8% 0.0% 0.0% P16..4: 2.9% 0.0% 0.0% 0.0% 0.0% skip:96.3%
[libx264 @ 00863fe0] coded y,uvDC,uvAC intra: 23.6% 15.1% 13.9% inter: 1.2% 1.3% 0.8%
[libx264 @ 00863fe0] i16 v,h,dc,p: 65% 33% 1% 1%
[libx264 @ 00863fe0] i8c dc,h,v,p: 61% 25% 13% 0%
[libx264 @ 00863fe0] kb/s:631.31



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Recording desktop with gdigrab ffmeg to mp4 file with too high video_size don't working
4 juillet 2016, par tagryI try to recording my desktop with ffmpeg using the command :
ffmpeg -f gdigrab -framerate 10 -video_size 1920x1200 -i desktop -pix_fmt yuv420p -vcodec libx264 -preset ultrafast output.mp4
The problem is when the video_size option is higher than some size, (for example height higher 1089), the video can’t be read with Windows Media. I noticed that with this high size, the video which be recorded doesn’t have informations about size. I don’t understand why the record don’t work with a too big size. If somebody can help me.
Thank you very much and very sorry for my English.[edit]
ffmpeg version N-78758-g5156578 Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-decklink --enable-zlib
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 27.100 / 57. 27.100
libavformat 57. 26.100 / 57. 26.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 37.100 / 6. 37.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
[gdigrab @ 00861860] Capturing whole desktop as 1920x1200x16 at (0,0)
Input #0, gdigrab, from 'desktop':
Duration: N/A, start: 1467631308.011542, bitrate: 368644 kb/s
Stream #0:0: Video: bmp, rgb555le, 1920x1200, 368644 kb/s, 10 tbr, 1000k tbn, 10 tbc
[libx264 @ 00863fe0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 00863fe0] profile Constrained Baseline, level 5.0
[libx264 @ 00863fe0] 264 - core 148 r2665 a01e339 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options: cabac=0 ref=1 deblock=0:0:0 analyse=0:0 me=dia subme=0 psy=1 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=0 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=0 keyint=250 keyint_min=10 scenecut=0 intra_refresh=0 rc=crf mbtree=0 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=0
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf57.26.100
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1200, q=-1--1, 10 fps, 10240 tbn, 10 tbc
Metadata:
encoder : Lavc57.27.100 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream mapping:
Stream #0:0 -> #0:0 (bmp (native) -> h264 (libx264))
Press [q] to stop, [?] for help
frame= 6 fps=0.0 q=0.0 size= 0kB time=00:00:00.00 bitrate=N/A speed= 0x
frame= 11 fps= 11 q=10.0 size= 277kB time=00:00:00.40 bitrate=5664.4kbits/s speed=0.396x
frame= 16 fps= 11 q=9.0 size= 393kB time=00:00:00.90 bitrate=3578.8kbits/s speed=0.595x
frame= 21 fps= 10 q=9.0 size= 429kB time=00:00:01.40 bitrate=2507.4kbits/s speed=0.695x
frame= 26 fps= 10 q=9.0 size= 429kB time=00:00:01.90 bitrate=1849.3kbits/s speed=0.754x
frame= 31 fps= 10 q=18.0 size= 430kB time=00:00:02.40 bitrate=1466.1kbits/s speed=0.793x
frame= 36 fps= 10 q=10.0 size= 511kB time=00:00:02.90 bitrate=1442.6kbits/s speed=0.823x
frame= 41 fps= 10 q=10.0 size= 562kB time=00:00:03.40 bitrate=1353.0kbits/s speed=0.844x
frame= 46 fps= 10 q=10.0 size= 565kB time=00:00:03.90 bitrate=1185.9kbits/s speed=0.861x
frame= 51 fps= 10 q=9.0 size= 575kB time=00:00:04.40 bitrate=1070.8kbits/s speed=0.874x
frame= 56 fps= 10 q=12.0 size= 582kB time=00:00:04.90 bitrate= 972.3kbits/s speed=0.885x
frame= 61 fps= 10 q=10.0 size= 598kB time=00:00:05.40 bitrate= 907.7kbits/s speed=0.893x
frame= 66 fps= 10 q=10.0 size= 601kB time=00:00:05.90 bitrate= 834.5kbits/s speed=0.901x
frame= 71 fps= 10 q=10.0 size= 603kB time=00:00:06.40 bitrate= 772.3kbits/s speed=0.907x
frame= 76 fps= 10 q=12.0 size= 606kB time=00:00:06.90 bitrate= 719.8kbits/s speed=0.913x
frame= 81 fps= 10 q=10.0 size= 625kB time=00:00:07.40 bitrate= 691.8kbits/s speed=0.917x
frame= 86 fps= 10 q=10.0 size= 629kB time=00:00:07.90 bitrate= 652.2kbits/s speed=0.922x
frame= 91 fps= 10 q=12.0 size= 634kB time=00:00:08.40 bitrate= 618.2kbits/s speed=0.926x
frame= 97 fps= 10 q=10.0 size= 757kB time=00:00:09.00 bitrate= 689.3kbits/s speed=0.94x
frame= 100 fps= 10 q=-1.0 Lsize= 772kB time=00:00:10.00 bitrate= 632.8kbits/s speed=0.998x
video:771kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.153975%
[libx264 @ 00863fe0] frame I:1 Avg QP:20.00 size:242961
[libx264 @ 00863fe0] frame P:99 Avg QP:10.67 size: 5517
[libx264 @ 00863fe0] mb I I16..4: 100.0% 0.0% 0.0%
[libx264 @ 00863fe0] mb P I16..4: 0.8% 0.0% 0.0% P16..4: 2.9% 0.0% 0.0% 0.0% 0.0% skip:96.3%
[libx264 @ 00863fe0] coded y,uvDC,uvAC intra: 23.6% 15.1% 13.9% inter: 1.2% 1.3% 0.8%
[libx264 @ 00863fe0] i16 v,h,dc,p: 65% 33% 1% 1%
[libx264 @ 00863fe0] i8c dc,h,v,p: 61% 25% 13% 0%
[libx264 @ 00863fe0] kb/s:631.31