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Rennes Emotion Map 2010-11
19 octobre 2011, par
Mis à jour : Juillet 2013
Langue : français
Type : Texte
Autres articles (63)
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Participer à sa traduction
10 avril 2011Vous pouvez nous aider à améliorer les locutions utilisées dans le logiciel ou à traduire celui-ci dans n’importe qu’elle nouvelle langue permettant sa diffusion à de nouvelles communautés linguistiques.
Pour ce faire, on utilise l’interface de traduction de SPIP où l’ensemble des modules de langue de MediaSPIP sont à disposition. ll vous suffit de vous inscrire sur la liste de discussion des traducteurs pour demander plus d’informations.
Actuellement MediaSPIP n’est disponible qu’en français et (...) -
List of compatible distributions
26 avril 2011, parThe table below is the list of Linux distributions compatible with the automated installation script of MediaSPIP. Distribution nameVersion nameVersion number Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
If you want to help us improve this list, you can provide us access to a machine whose distribution is not mentioned above or send the necessary fixes to add (...) -
Submit bugs and patches
13 avril 2011Unfortunately a software is never perfect.
If you think you have found a bug, report it using our ticket system. Please to help us to fix it by providing the following information : the browser you are using, including the exact version as precise an explanation as possible of the problem if possible, the steps taken resulting in the problem a link to the site / page in question
If you think you have solved the bug, fill in a ticket and attach to it a corrective patch.
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Sur d’autres sites (8699)
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ffmpeg segmentation filter don't works with strftime filename template
24 juillet 2020, par Ksnadr RenderonI try to run ffmpeg with segment filter and timestamp filename template :


ffmpeg -f v4l2 -framerate 30 -video_size 960x720 -i /dev/video0 -f segment -segment_time 5 -reset_timestamps 1 -segment_format mp4 -strftime 1 out%Y-%m-%d_%H-%M-%S.mp4


and i got error :


Invalid segment filename template 'out%Y-%m-%d_%H-%M-%S.mp4'


I have read a lot of posts and questions in the internet with the same arguments (after input, which is specific) and people says that this works. What wrong with my command ?


UPD : add full ffmpeg log


root@nanopiair:~# ffmpeg -f v4l2 -framerate 30 -video_size 960x720 -i /dev/video0 -f segment -segment_time 5 -reset_timestamps 1 -segment_format mp4 -strftime 1 out%Y-%m-%d_%H-%M-%S.mp4
ffmpeg version git-2015-01-22-f86a076 Copyright (c) 2000-2014 the FFmpeg developers
 built on Jul 22 2020 12:02:39 with gcc 8 (Debian 8.3.0-6)
 configuration: --prefix=/usr --enable-nonfree --enable-gpl --enable-vdpau --enable-libx264 --enable-libv4l2 --enable-libfreetype --enable-libfontconfig --enable-libfribidi
 libavutil 54. 6.100 / 54. 6.100
 libavcodec 56. 0.101 / 56. 0.101
 libavformat 56. 2.100 / 56. 2.100
 libavdevice 56. 0.100 / 56. 0.100
 libavfilter 5. 0.102 / 5. 0.102
 libswscale 3. 0.100 / 3. 0.100
 libswresample 1. 1.100 / 1. 1.100
 libpostproc 53. 0.100 / 53. 0.100
Input #0, video4linux2,v4l2, from '/dev/video0':
 Duration: N/A, start: 2548.007454, bitrate: 248832 kb/s
 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 960x720, 248832 kb/s, 30 fps, 30 tbr, 1000k tbn, 1000k tbc
[libx264 @ 0x201bec0] using cpu capabilities: ARMv6 NEON
[libx264 @ 0x201bec0] profile High, level 3.1
[libx264 @ 0x201bec0] 264 - core 142 - H.264/MPEG-4 AVC codec - Copyleft 2003-2014 - 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
[mp4 @ 0x2507bd0] Invalid segment filename template 'out%Y-%m-%d_%H-%M-%S.mp4'
Output #0, segment, to 'out%Y-%m-%d_%H-%M-%S.mp4':
 Metadata:
 encoder : Lavf56.2.100
 Stream #0:0: Video: h264 (libx264), yuv420p, 960x720, q=-1--1, 30 fps, 30 tbn, 30 tbc
 Metadata:
 encoder : Lavc56.0.101 libx264
Stream mapping:
 Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument


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How to initialize the AV format context from NetworkStream rather than url ?
23 juillet 2020, par AhmadI'm using FFmpeg.AutoGen to encode catpured frames :
https://github.com/Ruslan-B/FFmpeg.AutoGen


I send the encoded packets through NetworkStream to another program using TCP Client/Server application, using this code :


//Send size and encoded packet
 _stream.Write(BitConverter.GetBytes(pPacket->size), 0, 4);
 using (var packetStream = new UnmanagedMemoryStream(pPacket->data, pPacket->size)) 
 packetStream.CopyTo(_stream);


At the server-side, after UTF8 encoding, I receive content like this :




gd ?r@ ?/ ?a 21 ?
h?C?,? ????E???H??,? ?#??x264 - core 160 - H.264/MPEG-4 AVC codec - Copyleft 2003-2020 - http://www.videolan.org/x264.html - options: cabac=1 ref=16 deblock=1:0:0 analyse=0x3:0x133 me=umh subme=10 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=24 chroma_me=1 trellis=2 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=11 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=8 b_pyramid=2 b_adapt=2 b_bias=0 direct=3 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=60 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00 ? e?? ??S?T????M?.O ??Ea???Q?OI??X?????[?P???42=h??M?K? ??{?@c;?t???Ke?>?????2 ?? ?\qXEvg ???U A ?X ??q/(?? ?L ?_c ?g ?X ?c(To ?k ?Y ?-F ???R ?] ??U ?
 ;|=r ????\U ???2 ?g ??> ??½ ?7 ?A ?1W9 ???A ?? ?_L ??P ?) ?M ????q/ ?L ??) : ??< ??8d/* ? ?^ ??} ?B ?H ?_8C[y ???CY ?QM(J ???1<3% ?K ?F ;Q3Q ????
 ??jyJ" ???y]k ?m ?^} ???S ????h ?3 ????EP ???pw ???q ?jKp ???h ?????



My problem is, how to initialize the AV format context with this data, and decode the received packet to recover the original frame ?


_pFormatContext = ffmpeg.avformat_alloc_context();
ffmpeg.avformat_open_input(&pFormatContext, url, null, null).ThrowExceptionIfError();


As problem exactly is, ffmpeg.avformat_open_input takes URL as an input, not byte[]. If _pFormatContext can be initialized using the received data, things are resolved, but HOW ?


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Unable to find a suitable output format for 'ffmpeg' I/flutter (29205) : ffmpeg : Invalid argument
24 juillet 2020, par Abhijit RajmaneI'm trying to mix two audio files using flutter_ffmpeg : 0.2.10 but I get


[NULL @ 0xd77d4400] Unable to find a suitable output format for 'ffmpeg'
I/flutter (29205): ffmpeg: Invalid argument

code : 
String file1= _localPath+"/file1.m4a";
String file2= _localPath+"/file2.mp3";
String output= _localPath+"/abhijit.wav";

String finalPath= "ffmpeg -i "+ file1 +" -i "+file2+" -filter_complex amix=inputs=2:duration=first:dropout_transition=0 "+output;

console ffmpeg's message...
I/flutter (29205): libavutil 56. 38.100 / 56. 38.100
I/flutter (29205): libavcodec 58. 65.102 / 58. 65.102
I/flutter (29205): libavformat 58. 35.101 / 58. 35.101
I/flutter (29205): libavdevice 58. 9.103 / 58. 9.103
I/flutter (29205): libavfilter 7. 70.101 / 7. 70.101
I/flutter (29205): libswscale 5. 6.100 / 5. 6.100
I/flutter (29205): libswresample 3. 6.100 / 3. 6.100
I/flutter (29205): Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '/storage/emulated/0/Android/data/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/files/Download/file1.m4a':
I/flutter (29205): Metadata:
I/flutter (29205): major_brand : mp42
I/flutter (29205): minor_version : 1
I/flutter (29205): compatible_brands: isommp41mp42
I/flutter (29205): creation_time : 2020-07-09T15:42:47.000000Z
I/flutter (29205): Duration: 00:12:12.26, start: 0.000000, bitrate: 61 kb/s
I/flutter (29205): Stream #0:0(und): Audio: aac (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 60 kb/s (default)
I/flutter (29205): Metadata:
I/flutter (29205): creation_time : 2020-07-09T15:42:47.000000Z
I/flutter (29205): handler_name : Core Media Audio
I/flutter (29205): Input #1, mp3, from '/storage/emulated/0/Android/data/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/files/Download/file2.mp3':
I/flutter (29205): Metadata:
I/flutter (29205): artist : SoundHelix
I/flutter (29205): genre : Techno
I/flutter (29205): encoder : Lavf58.20.100
I/flutter (29205): Duration: 00:00:23.12, start: 0.011995, bitrate: 192 kb/s
I/flutter (29205): Stream #1:0: Audio: mp3, 44100 Hz, stereo, fltp, 192 kb/s
I/flutter (29205): Metadata:
I/flutter (29205): encoder : Lavf
I/flutter (29205): [NULL @ 0xd77d4400] Unable to find a suitable output format for 'ffmpeg'
I/flutter (29205): ffmpeg: Invalid argument
I/flutter (29205): "
I/flutter (29205): New FFmpeg pipe: /data/user/0/com.arthenica.flutter.ffmpeg.FlutterFFmpegExample/cache/mf_pipe_7
I/flutter (29205): FFmpeg process exited with rc 1


Please check command of FFmpeg and suggest me if any correction occur, Unable to find a suitable output format for 'ffmpeg' I/flutter (29205) : ffmpeg : Invalid argument
I have no idea about this error please help me


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