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Demande de création d’un canal
12 mars 2010, parEn fonction de la configuration de la plateforme, l’utilisateur peu avoir à sa disposition deux méthodes différentes de demande de création de canal. La première est au moment de son inscription, la seconde, après son inscription en remplissant un formulaire de demande.
Les deux manières demandent les mêmes choses fonctionnent à peu près de la même manière, le futur utilisateur doit remplir une série de champ de formulaire permettant tout d’abord aux administrateurs d’avoir des informations quant à (...) -
MediaSPIP Player : les contrôles
26 mai 2010, parLes contrôles à la souris du lecteur
En plus des actions au click sur les boutons visibles de l’interface du lecteur, il est également possible d’effectuer d’autres actions grâce à la souris : Click : en cliquant sur la vidéo ou sur le logo du son, celui ci se mettra en lecture ou en pause en fonction de son état actuel ; Molette (roulement) : en plaçant la souris sur l’espace utilisé par le média (hover), la molette de la souris n’exerce plus l’effet habituel de scroll de la page, mais diminue ou (...) -
L’utiliser, en parler, le critiquer
10 avril 2011La première attitude à adopter est d’en parler, soit directement avec les personnes impliquées dans son développement, soit autour de vous pour convaincre de nouvelles personnes à l’utiliser.
Plus la communauté sera nombreuse et plus les évolutions seront rapides ...
Une liste de discussion est disponible pour tout échange entre utilisateurs.
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drawbox don't work on remote server and works on local
5 décembre 2015, par efpiesI’ve got a completely weird problem.
I need to draw the text over the filled rectangle. The problem is that the command line command that work on my local machine don’t work on the server ! To be precise, only
drawbox
command don’t work.Here’s the command.
ffmpeg -i shake.mp4 -vf "scale=300:150,setsar=1/1,drawbox=w=300: h=16: x=0: y=134: color=0x1a5757: t=1000000,drawtext=x=5: y=136: fontfile=Arial.ttf: text='fdsf': fontcolor=0xd44e4e" -c:v h264 -preset medium -b:v 256k -f mp4 shake_conv.mp4
Clarification
It seems, that my question is unclear. Ok, here’s clarification.
I need to draw the text over the filled rectangle.
It means, that, at first, I have a video. Then I would like to draw a bar at the [0 ; 134] with width 300px and height 16px, painted with #1A5757 color. And over that bar should be placed a text.
The problem is that the command line command that work on my local machine don’t work on the server !
It means that I have 2 environments : local machine (my Mac OS X 10.9.2 with ffmpeg 2.0.2 installed) and the server (Debian 7 with ffmpeg 1.0.8 installed. Quite old, dunno, but no errors were in this case ; can’t find any info about version dependency).
The last part,
the command line command that work on my local machine don’t work on the server
To be precise, only
drawbox
command don’t work.means that the same command above draws the bar I need in my local environment but don’t draw it on the server side. The text is drawed correctly in both cases. One more time : the text is drawed, the bar isn’t drawed. That’s my problem. I need a bar over the video. And there aren’t any bars when I execute this command on server.
Now, I hope, this is quite clear.
Here’s the output.
ffmpeg version 1.0.8 Copyright (c) 2000-2013 the FFmpeg developers
built on Sep 12 2013 11:57:09 with gcc 4.7 (Debian 4.7.2-5)
configuration: --prefix=/usr --extra-cflags='-g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security ' --extra-ldflags='-Wl,-z,relro' --cc='ccache cc' --enable-shared --enable-libmp3lame --enable-gpl --enable-nonfree --enable-libvorbis --enable-pthreads --enable-libfaac --enable-libxvid --enable-postproc --enable-x11grab --enable-libgsm --enable-libtheora --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libx264 --enable-libspeex --enable-nonfree --disable-stripping --enable-libvpx --enable-libschroedinger --disable-encoder=libschroedinger --enable-version3 --enable-libopenjpeg --enable-librtmp --enable-avfilter --enable-libfreetype --enable-libvo-aacenc --disable-decoder=amrnb --enable-libvo-amrwbenc --enable-libaacplus --libdir=/usr/lib/x86_64-linux-gnu --disable-vda --enable-libbluray --enable-libcdio --enable-gnutls --enable-frei0r --enable-openssl --enable-libass --enable-libopus --enable-fontconfig --enable-libfdk-aac --enable-libdc1394 --disable-altivec --dis libavutil 51. 73.101 / 51. 73.101
libavcodec 54. 59.100 / 54. 59.100
libavformat 54. 29.104 / 54. 29.104
libavdevice 54. 2.101 / 54. 2.101
libavfilter 3. 17.100 / 3. 17.100
libswscale 2. 1.101 / 2. 1.101
libswresample 0. 15.100 / 0. 15.100
libpostproc 52. 0.100 / 52. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'shake.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
creation_time : 1970-01-01 00:00:00
encoder : Lavf52.40.0
Duration: 00:00:29.24, start: 0.000000, bitrate: 2243 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 2111 kb/s, 25 fps, 25 tbr, 25 tbn, 50 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, s16, 127 kb/s
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
File 'llll.mp4' already exists. Overwrite ? [y/N] y
using SAR=1/1
[libx264 @ 0x229e7a0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x229e7a0] profile High, level 1.3
[libx264 @ 0x229e7a0] 264 - core 132 - H.264/MPEG-4 AVC codec - Copyleft 2003-2013 - 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=12 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=abr mbtree=1 bitrate=256 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'llll.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf54.29.104
Stream #0:0(und): Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 300x150 [SAR 1:1 DAR 2:1], q=-1--1, 256 kb/s, 25 tbn, 25 tbc
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : VideoHandler
Stream #0:1(und): Audio: aac ([64][0][0][0] / 0x0040), 44100 Hz, stereo, s16, 128 kb/s
Metadata:
creation_time : 1970-01-01 00:00:00
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (h264 -> libx264)
Stream #0:1 -> #0:1 (aac -> libfaac)
Press [q] to stop, [?] for help
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] channel element 1.15 is not allocated
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] TYPE_FIL: Input buffer exhausted before END element found
Error while decoding stream #0:1: Operation not permitted
Multiple frames in a packet from stream 1
[aac @ 0x228d5c0] channel element 3.11 is not allocated
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
[aac @ 0x228d5c0] SSR not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented.
[aac @ 0x228d5c0] If you want to help, upload a sample of this file to ftp://upload.ffmpeg.org/MPlayer/incoming/ and contact the ffmpeg-devel mailing list.
Error while decoding stream #0:1: Operation not permitted
frame= 731 fps=244 q=32766.0 Lsize= 1497kB time=00:00:29.16 bitrate= 420.6kbits/s
video:1028kB audio:447kB subtitle:0 global headers:0kB muxing overhead 1.533339%
[libx264 @ 0x229e7a0] frame I:5 Avg QP:27.90 size: 6997
[libx264 @ 0x229e7a0] frame P:578 Avg QP:28.74 size: 1732
[libx264 @ 0x229e7a0] frame B:148 Avg QP:25.26 size: 107
[libx264 @ 0x229e7a0] consecutive B-frames: 59.5% 40.5% 0.0% 0.0%
[libx264 @ 0x229e7a0] mb I I16..4: 25.6% 9.1% 65.4%
[libx264 @ 0x229e7a0] mb P I16..4: 2.1% 1.1% 3.8% P16..4: 12.3% 15.3% 15.6% 0.0% 0.0% skip:49.7%
[libx264 @ 0x229e7a0] mb B I16..4: 0.8% 0.0% 0.0% B16..8: 17.6% 3.3% 0.9% direct: 0.5% skip:76.9% L0:39.7% L1:57.5% BI: 2.8%
[libx264 @ 0x229e7a0] final ratefactor: 26.03
[libx264 @ 0x229e7a0] 8x8 transform intra:14.3% inter:23.4%
[libx264 @ 0x229e7a0] coded y,uvDC,uvAC intra: 54.1% 68.9% 58.9% inter: 17.7% 19.5% 10.0%
[libx264 @ 0x229e7a0] i16 v,h,dc,p: 58% 33% 5% 4%
[libx264 @ 0x229e7a0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 12% 22% 6% 6% 8% 7% 9% 10%
[libx264 @ 0x229e7a0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 25% 19% 20% 5% 5% 7% 8% 6% 6%
[libx264 @ 0x229e7a0] i8c dc,h,v,p: 50% 25% 19% 6%
[libx264 @ 0x229e7a0] Weighted P-Frames: Y:2.6% UV:1.7%
[libx264 @ 0x229e7a0] ref P L0: 70.2% 11.0% 10.1% 8.5% 0.1%
[libx264 @ 0x229e7a0] ref B L0: 94.3% 5.7%
[libx264 @ 0x229e7a0] kb/s:287.75 -
ffmpeg change framerate : Question about bitrate [closed]
9 février, par schweigersonThanks to the forum, I successfully can reduce the frame rate of a video.


ffmpeg -i input_50fps.mp4 -filter:v fps=25 output_25fps.mp4


Input and output have a similar bitrate as well as filzesize :






 File 

bitrate 

filesize 







 input_50fps.mp4 

2900kBit/s 

1.9GB 




 output_25fps.mp4 

2528kBit/s 

1.7GB 







Assumption : Divide the number of frames into half should both reduce the bitrate and the filesize accordingly (half the size).


Question : Does it make sense to enforce the reduction of the bitrate to approx. half the original one, when I reduce the framerate by to 50% (e.g. with
-b:v 1500k
) ? IMHO, the video quality should be comparable to the original video then.

Note : I may make according test runs, but I perhaps do not have the ability to recognize the quality difference as I'm not an advanced video expert.


Would be happy to read your advice.


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FFMPEG syntax clarification question for the "between" function [closed]
31 octobre 2024, par user2571504I've been using a crop filter script to hold the crop in one place for the first 750 frames, then automate a moving crop to follow some action in the clip. It's working great for chunky moves (5 pixel jumps as shown below) :


-filter_script:v:0 crop-filter-script.txt

crop='1500:1000:100:
if(between(n,0,750),100,
if(between(n,751,756),105,
if(between(n,757,762),110,
if(between(n,763,768),115,
if(between(n,769,774),120,
if(between(n,775,780),125,
if(between(n,781,786),130,etc



My question is about how "between" is interpreted. Does "between(n,751,756)" mean "frames 751, 752, 753, 754, 755 & 756" ? or does it exclude the start and ending frames, so that it's "between" those two numbers ? Like : 752, 753, 754 & 755 only ?


Thanks !