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Autres articles (103)
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Mise à jour de la version 0.1 vers 0.2
24 juin 2013, parExplications des différents changements notables lors du passage de la version 0.1 de MediaSPIP à la version 0.3. Quelles sont les nouveautés
Au niveau des dépendances logicielles Utilisation des dernières versions de FFMpeg (>= v1.2.1) ; Installation des dépendances pour Smush ; Installation de MediaInfo et FFprobe pour la récupération des métadonnées ; On n’utilise plus ffmpeg2theora ; On n’installe plus flvtool2 au profit de flvtool++ ; On n’installe plus ffmpeg-php qui n’est plus maintenu au (...) -
Ecrire une actualité
21 juin 2013, parPrésentez les changements dans votre MédiaSPIP ou les actualités de vos projets sur votre MédiaSPIP grâce à la rubrique actualités.
Dans le thème par défaut spipeo de MédiaSPIP, les actualités sont affichées en bas de la page principale sous les éditoriaux.
Vous pouvez personnaliser le formulaire de création d’une actualité.
Formulaire de création d’une actualité Dans le cas d’un document de type actualité, les champs proposés par défaut sont : Date de publication ( personnaliser la date de publication ) (...) -
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 (20161)
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24 cores, 25 ffmpeg session - cpu looks good but load average high
9 août 2012, par thevoipmanI don't know if it's my script or just the system itself, but I definitely don't want to take anything down.
I am running a centos 6.3 64bit with about 25 sessions of ffmpeg encoding
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I am trying to speed up ffmpeg encoding, but it seems like whatever ram or cpu I have, the encoding process still take very long. I have used -threads 0 or even -threads 16 to see if it speed up but it doesn't.
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My load average is very high, how can I lower this without terminating ffmpeg tasks ?
top - 19:33:28 up 13:09, 2 users, load average: 161.95, 161.07, 161.02
Tasks: 523 total, 3 running, 520 sleeping, 0 stopped, 0 zombie
Cpu(s): 14.0%us, 1.1%sy, 84.4%ni, 0.1%id, 0.0%wa, 0.0%hi, 0.4%si, 0.0%st
Mem: 65943668k total, 65676464k used, 267204k free, 137428k buffers
Swap: 8388600k total, 170992k used, 8217608k free, 56438576k cached- Here is my cpu usage :
08/09/2012 _x86_64_ (24 CPU)
07:34:15 PM CPU %usr %nice %sys %iowait %irq %soft %steal %guest %idle
07:34:15 PM all 10.83 86.27 0.55 0.03 0.00 0.14 0.00 0.00 2.19
07:34:15 PM 0 18.68 69.92 5.82 0.39 0.00 3.22 0.00 0.00 1.97
07:34:15 PM 1 11.11 86.26 0.45 0.02 0.00 0.00 0.00 0.00 2.16
07:34:15 PM 2 11.07 86.34 0.42 0.02 0.00 0.00 0.00 0.00 2.17
07:34:15 PM 3 10.89 86.50 0.43 0.02 0.00 0.00 0.00 0.00 2.16
07:34:15 PM 4 11.05 86.31 0.45 0.02 0.00 0.00 0.00 0.00 2.17
07:34:15 PM 5 11.07 86.34 0.41 0.01 0.00 0.00 0.00 0.00 2.16
07:34:15 PM 6 12.79 84.56 0.48 0.06 0.00 0.07 0.00 0.00 2.05
07:34:15 PM 7 11.32 86.34 0.18 0.01 0.00 0.00 0.00 0.00 2.15
07:34:15 PM 8 11.49 86.15 0.18 0.01 0.00 0.00 0.00 0.00 2.17
07:34:15 PM 9 11.95 85.67 0.19 0.01 0.00 0.00 0.00 0.00 2.18
07:34:15 PM 10 11.73 85.90 0.19 0.01 0.00 0.00 0.00 0.00 2.18
07:34:15 PM 11 11.56 86.08 0.18 0.01 0.00 0.00 0.00 0.00 2.17
07:34:15 PM 12 13.59 82.43 1.33 0.09 0.00 0.00 0.00 0.00 2.56
07:34:15 PM 13 8.72 88.76 0.29 0.02 0.00 0.00 0.00 0.00 2.21
07:34:15 PM 14 8.84 88.67 0.28 0.02 0.00 0.00 0.00 0.00 2.20
07:34:15 PM 15 8.76 88.71 0.32 0.02 0.00 0.00 0.00 0.00 2.19
07:34:15 PM 16 8.73 88.75 0.29 0.02 0.00 0.00 0.00 0.00 2.21
07:34:15 PM 17 8.76 88.75 0.26 0.02 0.00 0.00 0.00 0.00 2.21
07:34:15 PM 18 10.35 87.16 0.24 0.02 0.00 0.00 0.00 0.00 2.23
07:34:15 PM 19 9.16 88.48 0.17 0.01 0.00 0.00 0.00 0.00 2.17
07:34:15 PM 20 9.45 88.19 0.18 0.01 0.00 0.00 0.00 0.00 2.18
07:34:15 PM 21 9.62 88.01 0.17 0.01 0.00 0.00 0.00 0.00 2.20
07:34:15 PM 22 9.73 87.88 0.17 0.01 0.00 0.00 0.00 0.00 2.20
07:34:15 PM 23 9.44 88.21 0.16 0.01 0.00 0.00 0.00 0.00 2.18Please let me know if I'm seeing any trouble coming up if I keep on adding more ffmpeg's tasks
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Revision 28566a6cd5 : Place holder for high-precision 32x32 fdct Resolve compile warnings on re-defin
6 août 2013, par Jingning HanChanged Paths :
Modify /vp9/encoder/x86/vp9_dct32x32_sse2.c
Modify /vp9/encoder/x86/vp9_dct_sse2.c
Place holder for high-precision 32x32 fdctResolve compile warnings on re-define FDCT32x32_2D template.
Change-Id : Idb3a54ef8d2710ce7245b726379a0e5c875f5cad
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Not able to change H264 profile to High from Main using FFMPEG API
7 juin 2015, par AsGI am using QtFFMPEG wrapper(https://code.google.com/p/qtffmpegwrapper/) with Qt 5.4 and MSCV 2012. I want to encode a mp4 video from image files at 25 fps and high profile.
I used the createFile() and encodeImage() functions from hereI am using the below parameters :
pCodecCtx=pVideoStream->codec;
pCodecCtx->codec_id = pOutputFormat->video_codec;
pCodecCtx->codec_type = ffmpeg::AVMEDIA_TYPE_VIDEO;
pCodecCtx->profile=FF_PROFILE_H264_HIGH;
pCodecCtx->bit_rate = Bitrate;
pCodecCtx->width = getWidth();
pCodecCtx->height = getHeight();
pCodecCtx->time_base.den = fps;
pCodecCtx->time_base.num = 1;
pCodecCtx->gop_size = 10;
pCodecCtx->pix_fmt = ffmpeg::PIX_FMT_YUV420P;
pCodecCtx->qmin = 10;
pCodecCtx->qmax = 51;The FFMPEG variables are :
License: %s
GPL version 3 or later
AVCodec version %d
3476480
AVFormat configuration: %s
--disable-static --enable-shared --enable-gpl --enable-version3 --enable-runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-libgsm --enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libxavs --enable-libxvid --enable-zlibNow I currently get a video with below properties :
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : Main@L3.2
Format settings, CABAC : No
Format settings, ReFrames : 1 frame
Format settings, GOP : M=1, N=10
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 4s 320msI want the profile to be "High" and the CABAC to be yes with 3 ReFrames. How do I achieve that ? I tried setting the profile, coder_type and max_b_frames but did not help. At times the generated file did not even play. Can anyone help please. Thanks.
I also tried using the av_opt_set() way but could not find that function. Only function I have is av_opt_set_dict(), am I missing something - outdated FFMPEG or missing #include.
Tried this too, didnt help-
ffmpeg::AVDictionary *opt = NULL;
int iRes = av_dict_set(&opt, "profile", "high", 0);
av_opt_set_dict(pFormatCtx->priv_data, &opt);
av_opt_set_dict(pFormatCtx, &opt);Please help.
EDIT :
I got a high quality mp4 by changing the qmin and qmax values and then reencoding the big sized output via command line. I will try to upgrade the FFMPEG as suggested by Ronald below. Please consider the question closed for now.