Recherche avancée

Médias (0)

Mot : - Tags -/images

Aucun média correspondant à vos critères n’est disponible sur le site.

Autres articles (52)

  • Support de tous types de médias

    10 avril 2011

    Contrairement à beaucoup de logiciels et autres plate-formes modernes de partage de documents, MediaSPIP a l’ambition de gérer un maximum de formats de documents différents qu’ils soient de type : images (png, gif, jpg, bmp et autres...) ; audio (MP3, Ogg, Wav et autres...) ; vidéo (Avi, MP4, Ogv, mpg, mov, wmv et autres...) ; contenu textuel, code ou autres (open office, microsoft office (tableur, présentation), web (html, css), LaTeX, Google Earth) (...)

  • Support audio et vidéo HTML5

    10 avril 2011

    MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
    Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
    Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
    Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...)

  • Personnaliser les catégories

    21 juin 2013, par

    Formulaire de création d’une catégorie
    Pour ceux qui connaissent bien SPIP, une catégorie peut être assimilée à une rubrique.
    Dans le cas d’un document de type catégorie, les champs proposés par défaut sont : Texte
    On peut modifier ce formulaire dans la partie :
    Administration > Configuration des masques de formulaire.
    Dans le cas d’un document de type média, les champs non affichés par défaut sont : Descriptif rapide
    Par ailleurs, c’est dans cette partie configuration qu’on peut indiquer le (...)

Sur d’autres sites (8072)

  • FFMPEG gets stuck on higher resolution or frame rate [H265]

    29 octobre 2015, par Anakooter

    I am running the following command which works perfectly on my system running Elementary OS on Intel Corei5 :

    ffmpeg -f v4l2 -i /dev/video0 -c:v libx265 -x265-params crf=14:vbv-maxrate=128:vbv-bufsize=32:keyint=10:qcomp=0.5:rd=5:ctu=64:min-cu-size=8:cu-lossless=false:fast-intra=false:strong-intra-smoothing=false -tune zerolatency -s 640x480 -preset ultrafast -r 5 -pix_fmt yuv420p -an -strict experimental -f mpegts udp://239.0.0.1:5002

    but if I change the output size to 800x600 and or increase the frame rate from 5 to 10. After a few seconds the video gets stuck.

    I have monitored the CPU usage for both the commands and it is almost identical that is between 300 to 400 percent ( since 4 cores ).

    Any possible answers to mitigate the issue.

    ffmpeg version 2.7.2-static http://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2015 the FFmpeg developers
    
built with gcc 4.9.3 (Debian 4.9.3-1)
    
configuration: --enable-gpl --enable-version3 --disable-shared --disable-debug --enable-runtime-cpudetect --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-libass --enable-gnutls --enable-libvidstab --enable-libsoxr --cc=gcc-4.9
    
libavutil      54. 27.100 / 54. 27.100
    
libavcodec     56. 41.100 / 56. 41.100
    
libavformat    56. 36.100 / 56. 36.100
    
libavdevice    56.  4.100 / 56.  4.100
    
libavfilter     5. 16.101 /  5. 16.101
    
libswscale      3.  1.101 /  3.  1.101
    
libswresample   1.  2.100 /  1.  2.100
    
libpostproc    53.  3.100 / 53.  3.100
    
Routing option strict to both codec and muxer layer
    
[video4linux2,v4l2 @ 0x4775460] fd:4 capabilities:84000001
    
Input #0, video4linux2,v4l2, from '/dev/video0':
    
Duration: N/A, start: 1223.904801, bitrate: 36864 kb/s
    
Stream #0:0: Video: rawvideo, 1 reference frame (YUY2 / 0x32595559), yuyv422, 320x240, 36864 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
    
[graph 0 input from stream 0:0 @ 0x476aae0] w:320 h:240 pixfmt:yuyv422     tb:1/1000000 fr:30/1 sar:0/1 sws_param:flags=2
    
[scaler for output stream 0:0 @ 0x476a920] w:800 h:600 flags:'0x4' interl:0
    
[scaler for output stream 0:0 @ 0x476a920] w:320 h:240 fmt:yuyv422 sar:0/1 -> w:800 h:600 fmt:yuv420p sar:0/1 flags:0x4
    
x265 [info]: HEVC encoder version 1.7+354-b2ba7df1fc69
    
x265 [info]: build info [Linux][GCC 4.9.3][64 bit] 8bit
    
x265 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
    
x265 [info]: Main profile, Level-3 (Main tier)
    
x265 [info]: Thread pool created using 4 threads
    
x265 [info]: frame threads / pool features       : 2 / wpp(10 rows)
    
x265 [info]: Coding QT: max CU size, min CU size : 64 / 8
    
x265 [info]: Residual QT: max TU size, max depth : 32 / 1 inter / 1 intra
    
x265 [info]: ME / range / subpel / merge         : dia / 57 / 0 / 2
    
x265 [info]: Keyframe min / max / scenecut       : 1 / 10 / 0
    
x265 [info]: Lookahead / bframes / badapt        : 0 / 0 / 0
    
x265 [info]: b-pyramid / weightp / weightb       : 0 / 0 / 0
    
x265 [info]: References / ref-limit  cu / depth  : 1 / 0 / 0
    
x265 [info]: Rate Control / qCompress            : CRF-14.0 / 0.50
    
x265 [info]: VBV/HRD buffer / max-rate / init    : 32 / 64 / 0.900
    
x265 [info]: tools: rd=5 psy-rd=0.30 early-skip tmvp deblock
    
[mpegts @ 0x4776b00] muxrate VBR, pcr every 1 pkts, sdt every 200, pat/pmt every 40 pkts
    
Output #0, mpegts, to 'udp://239.0.0.1:5002':
    
Metadata:
    
encoder         : Lavf56.36.100
    
Stream #0:0: Video: hevc (libx265), 1 reference frame, yuv420p, 800x600, q=2-31, 10 fps, 90k tbn, 10 tbc
    
Metadata:
    
encoder         : Lavc56.41.100 libx265
    
Stream mapping:
    
  Stream #0:0 -> #0:0 (rawvideo (native) -> hevc (libx265))
    
Press [q] to stop, [?] for help
    
*** dropping frame 2 from stream 0 at ts 0
    
*** dropping frame 3 from stream 0 at ts 1
    
    Last message repeated 2 times
    
*** dropping frame 4 from stream 0 at ts 2
    
    Last message repeated 1 times
    
*** dropping frame 5 from stream 0 at ts 3
    
    Last message repeated 1 times
    
*** dropping frame 5 from stream 0 at ts 4
    
*** dropping frame 6 from stream 0 at ts 4time=00:00:00.40 bitrate= 131.6kbits/s dup=0 drop=9    
    
    Last message repeated 1 times
    
*** dropping frame 7 from stream 0 at ts 5
    
    Last message repeated 1 times
    
*** dropping frame 8 from stream 0 at ts 6
    
    Last message repeated 2 times
    
*** dropping frame 12 from stream 0 at ts 11me=00:00:00.90 bitrate= 112.0kbits/s dup=0 drop=16    
    
*** dropping frame 13 from stream 0 at ts 11
    
    Last message repeated 1 times
    
*** dropping frame 14 from stream 0 at ts 12
    
    Last message repeated 1 times
    
*** dropping frame 15 from stream 0 at ts 13
    
    Last message repeated 2 times
    
*** dropping frame 16 from stream 0 at ts 14me=00:00:01.40 bitrate= 103.1kbits/s dup=0 drop=24    
    
    Last message repeated 1 times
    
*** dropping frame 17 from stream 0 at ts 15
    
    Last message repeated 1 times
    
*** dropping frame 17 from stream 0 at ts 16
    
*** dropping frame 18 from stream 0 at ts 16
    
    Last message repeated 1 times
    
*** dropping frame 19 from stream 0 at ts 17
    
    Last message repeated 1 times
    
*** dropping frame 20 from stream 0 at ts 18
    
    Last message repeated 1 times
    
*** dropping frame 20 from stream 0 at ts 19
    
*** dropping frame 21 from stream 0 at ts 19me=00:00:01.90 bitrate=  95.0kbits/s dup=0 drop=36    
    
    Last message repeated 1 times
    
*** dropping frame 22 from stream 0 at ts 20
    
    Last message repeated 1 times
    
*** dropping frame 23 from stream 0 at ts 21
    
    Last message repeated 2 times
    
*** dropping frame 24 from stream 0 at ts 22
    
    Last message repeated 1 times
    
*** dropping frame 25 from stream 0 at ts 23
    
    Last message repeated 1 times
    
*** dropping frame 25 from stream 0 at ts 24
    
*** dropping frame 26 from stream 0 at ts 24
    
    Last message repeated 1 times
    
*** dropping frame 27 from stream 0 at ts 25
    
    Last message repeated 1 times
    
*** dropping frame 28 from stream 0 at ts 26me=00:00:02.60 bitrate=  92.0kbits/s dup=0 drop=52    
    
    Last message repeated 2 times
    
*** dropping frame 29 from stream 0 at ts 27
    
    Last message repeated 1 times
    
*** dropping frame 30 from stream 0 at ts 28
    
    Last message repeated 1 times
    
*** dropping frame 30 from stream 0 at ts 29
    
*** dropping frame 31 from stream 0 at ts 29
    
    Last message repeated 1 times
    
*** 1 dup!
    
*** dropping frame 35 from stream 0 at ts 33me=00:00:03.30 bitrate=  96.2kbits/s dup=1 drop=62    
    
    Last message repeated 1 times
    
*** dropping frame 36 from stream 0 at ts 34
    
    Last message repeated 1 times
    
*** dropping frame 37 from stream 0 at ts 35
    
    Last message repeated 1 times
    
*** dropping frame 37 from stream 0 at ts 36
    
*** dropping frame 38 from stream 0 at ts 36
    
    Last message repeated 1 times
    
*** dropping frame 39 from stream 0 at ts 37
    
    Last message repeated 1 times
    
*** dropping frame 40 from stream 0 at ts 38
    
    Last message repeated 1 times
    
*** dropping frame 40 from stream 0 at ts 39
    
*** dropping frame 41 from stream 0 at ts 39
    
    Last message repeated 1 times
    
*** dropping frame 42 from stream 0 at ts 40me=00:00:04.00 bitrate=  89.1kbits/s dup=1 drop=78    
    
    Last message repeated 1 times
    
*** dropping frame 43 from stream 0 at ts 41
    
    Last message repeated 2 times
    
*** dropping frame 44 from stream 0 at ts 42
    
    Last message repeated 1 times
    
*** dropping frame 45 from stream 0 at ts 43
    
    Last message repeated 1 times
    
*** dropping frame 45 from stream 0 at ts 44
    
*** dropping frame 46 from stream 0 at ts 44me=00:00:04.40 bitrate=  93.3kbits/s dup=1 drop=88    
    
    Last message repeated 1 times
    
*** dropping frame 47 from stream 0 at ts 45
    
    Last message repeated 1 times
    
*** dropping frame 48 from stream 0 at ts 46
    
    Last message repeated 2 times
    
*** dropping frame 49 from stream 0 at ts 47
    
    Last message repeated 1 times
    
*** dropping frame 50 from stream 0 at ts 48me=00:00:04.80 bitrate=  91.8kbits/s dup=1 drop=97    
    
    Last message repeated 1 times
    
*** dropping frame 50 from stream 0 at ts 49
    
*** dropping frame 51 from stream 0 at ts 49
    
    Last message repeated 1 times
    
*** dropping frame 55 from stream 0 at ts 53me=00:00:05.30 bitrate=  91.7kbits/s dup=1 drop=102    
    
*** dropping frame 56 from stream 0 at ts 54
    
    Last message repeated 1 times
    
*** dropping frame 57 from stream 0 at ts 55
    
    Last message repeated 1 times
    
*** dropping frame 57 from stream 0 at ts 56
    
*** dropping frame 58 from stream 0 at ts 56me=00:00:05.60 bitrate=  91.9kbits/s dup=1 drop=108    
    
    Last message repeated 1 times
    
*** dropping frame 59 from stream 0 at ts 57
    
    Last message repeated 1 times
    
*** 18 dup!
    
*** 2 dup!
    
*** 555 dup!fps= 10 q=0.0 size=      86kB time=00:00:08.00 bitrate=  88.4kbits/s dup=21 drop=112    
    
x265 [warning]: poc:131, VBV underflow (-6152 bits)
    
x265 [warning]: poc:151, VBV underflow (-17080 bits)
    
x265 [warning]: poc:211, VBV underflow (-10272 bits)
    
x265 [warning]: poc:301, VBV underflow (-9024 bits)
    
x265 [warning]: poc:391, VBV underflow (-11368 bits)
    
x265 [warning]: poc:501, VBV underflow (-6152 bits)
    
x265 [warning]: poc:559, VBV underflow (-320 bits)
    
x265 [warning]: poc:581, VBV underflow (-16552 bits)
    
*** dropping frame 639 from stream 0 at ts 344=00:01:03.70 bitrate=  81.3kbits/s dup=576 drop=112    
    
    Last message repeated 2 times
    
*** dropping frame 639 from stream 0 at ts 345
    
    Last message repeated 3 times
    
*** dropping frame 639 from stream 0 at ts 346
    
    Last message repeated 1 times
    
*** 70055 dup!

  • FFMPEG - convert video without losing resolution

    29 octobre 2015, par Srh

    I am using ffmpeg to convert mp4 video from youtube. The video is HD 1080. When I convert it to mpeg2video, the video loses its sharpness, regardless of the -s 1920x1080 parameter. How can I convert the video without losing picture sharpness ? The command I use is :

    ffmpeg -i BBB.mp4 -vcodec mpeg2video -s1920x1080 -acodec copy -f mpegts BBB.ts

  • How to compare visually two look alike videos of different codec, size, resolution

    18 novembre 2015, par Abdul Gafoor

    Is it possible to compare pragmatically, two look alike videos of different codec, size and resolution. I went through the some tools like ffmpeg opencv.

    Or in the another context, Lets an image should be compared with video and find out the exact time where the image visually present in the given video. The codecs, size and resolution of video and image may vary.

Navigation