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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (89)
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Récupération d’informations sur le site maître à l’installation d’une instance
26 novembre 2010, parUtilité
Sur le site principal, une instance de mutualisation est définie par plusieurs choses : Les données dans la table spip_mutus ; Son logo ; Son auteur principal (id_admin dans la table spip_mutus correspondant à un id_auteur de la table spip_auteurs)qui sera le seul à pouvoir créer définitivement l’instance de mutualisation ;
Il peut donc être tout à fait judicieux de vouloir récupérer certaines de ces informations afin de compléter l’installation d’une instance pour, par exemple : récupérer le (...) -
Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Possibilité de déploiement en ferme
12 avril 2011, parMediaSPIP peut être installé comme une ferme, avec un seul "noyau" hébergé sur un serveur dédié et utilisé par une multitude de sites différents.
Cela permet, par exemple : de pouvoir partager les frais de mise en œuvre entre plusieurs projets / individus ; de pouvoir déployer rapidement une multitude de sites uniques ; d’éviter d’avoir à mettre l’ensemble des créations dans un fourre-tout numérique comme c’est le cas pour les grandes plate-formes tout public disséminées sur le (...)
Sur d’autres sites (6124)
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Launching ffmpeg from inside my C code doesn't convert video stream from fifo
13 mai 2017, par abraxas1(Beaglebone Black, ubuntu 16.04 linux 4.4.62-ti-r99)
I have a raw h264 feed coming into my C program (into a callback from a custom API) and then I named-piped the raw h264 to a file and this CLI command converts that file successfully.
ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4
I then try to launch this command from my program with the same options using execv(),
first mkfifo the fifo’s,
then launch ffmpeg (shown below) starts the streaming form the cameras to my callback function, and out to the fifos.
I close the fifos at the end of video recording, and don’t get any file created and get this output, which I don’t understand at all.
(the successful command line output follows below this output generated from execv())
thanks, any help much appreciated.
hardware has come in now and the spot light is on me.(execv output with options -report -y -i /tmp/fifocam3.h264 -c:v copy -an -video_size 1920x1080 -f mp4 /media/sd-card/orbi_0140.cam3.mp4)
root@arm:/home/orbi# cat ffmpeg-20170511-001941.log
ffmpeg started on 2017-05-11 at 00:19:41
Report written to "ffmpeg-20170511-001941.log"
Command line:
/usr/bin/ffmpeg -report -y -i /tmp/fifocam3.h264 -c:v copy -an -video_size 1920x1080 -f mp4 /media/sd-card/orbi_0140.cam3.mp4
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11gr libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Splitting the commandline.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-i' ... matched as input url with argument '/tmp/fifocam3.h264'.
Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
Reading option '-video_size' ... matched as AVOption 'video_size' with argument '1920x1080'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'.
Reading option '/media/sd-card/orbi_0140.cam3.mp4' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Applying option y (overwrite output files) with argument 1.
…
Successfully parsed a group of options.
Parsing a group of options: input url /tmp/fifocam3.h264.
…
Successfully parsed a group of options.
Opening an input file: /tmp/fifocam3.h264.
[h264 @ 0xf249a0] Format h264 probed with size=2048 and score=51
[h264 @ 0xf249a0] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0
[h264 @ 0xf25460] Current profile doesn't provide more RBSP data in PPS, skipping
[h264 @ 0xf25460] bytestream overread -4
[h264 @ 0xf25460] bytestream overread -4
[h264 @ 0xf25460] bytestream overread -4
[h264 @ 0xf25460] bytestream overread -4
[h264 @ 0xf25460] bytestream overread -10
[h264 @ 0xf25460] error while decoding MB 112 28, bytestream -10
[h264 @ 0xf25460] concealing 4737 DC, 4737 AC, 4737 MV errors in P frame
[h264 @ 0xf25460] Frame num gap 7 5
/////// successful command line run \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
root@arm:/home/orbi# ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4
root@arm:/home/orbi# cat ffmpeg-20170511-002629.log
ffmpeg started on 2017-05-11 at 00:26:29
Report written to "ffmpeg-20170511-002629.log"
Command line:
ffmpeg -report -re -framerate 30 -y -f h264 -i orbi_0148.cam1.h264 -c:v copy -an -video_size 1920x1080 -f mp4 orbi_0148.cam1-1.mp4
ffmpeg version 2.8.11-0ubuntu0.16.04.1 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 5.4.0 (Ubuntu/Linaro 5.4.0-6ubuntu1~16.04.4) 20160609
configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1 --build-suffix=-ffmpeg --toolchain=hardened --libdir=/usr/lib/arm-linux-gnueabihf --incdir=/usr/include/arm-linux-gnueabihf --cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping --disable-decoder=libopenjpeg --disable-decoder=libschroedinger --enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libmodplug --enable-libmp3lame --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librtmp --enable-libschroedinger --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi --enable-openal --enable-opengl --enable-x11gr libavutil 54. 31.100 / 54. 31.100
libavcodec 56. 60.100 / 56. 60.100
libavformat 56. 40.101 / 56. 40.101
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 40.101 / 5. 40.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 2.101 / 1. 2.101
libpostproc 53. 3.100 / 53. 3.100
Splitting the commandline.
Reading option '-report' ... matched as option 'report' (generate a report) with argument '1'.
Reading option '-re' ... matched as option 're' (read input at native frame rate) with argument '1'.
Reading option '-framerate' ... matched as AVOption 'framerate' with argument '30'.
Reading option '-y' ... matched as option 'y' (overwrite output files) with argument '1'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'h264'.
Reading option '-i' ... matched as input url with argument 'orbi_0148.cam1.h264'.
Reading option '-c:v' ... matched as option 'c' (codec name) with argument 'copy'.
Reading option '-an' ... matched as option 'an' (disable audio) with argument '1'.
Reading option '-video_size' ... matched as AVOption 'video_size' with argument '1920x1080'.
Reading option '-f' ... matched as option 'f' (force format) with argument 'mp4'.
Reading option 'orbi_0148.cam1-1.mp4' ... matched as output url.
Finished splitting the commandline.
Parsing a group of options: global .
Applying option report (generate a report) with argument 1.
Applying option y (overwrite output files) with argument 1.
…
Successfully parsed a group of options.
Parsing a group of options: input url orbi_0148.cam1.h264.
Applying option re (read input at native frame rate) with argument 1.
Applying option f (force format) with argument h264.
…
Successfully parsed a group of options.
Opening an input file: orbi_0148.cam1.h264.
[h264 @ 0x848a20] Before avformat_find_stream_info() pos: 0 bytes read:32768 seeks:0
[h264 @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping
[h264 @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping
[h264 @ 0x848a20] max_analyze_duration 5000000 reached at 5005000 microseconds st:0
[h264 @ 0x848a20] After avformat_find_stream_info() pos: 3773440 bytes read:3801088 seeks:0 frames:152
Input #0, h264, from 'orbi_0148.cam1.h264':
Duration: N/A, bitrate: N/A
Stream #0:0, 152, 1/1200000: Video: h264 (Main), yuv420p(tv), 1920x1080, 29.97 fps, 29.97 tbr, 1200k tbn, 59.94 tbc
Successfully opened the file.
Parsing a group of options: output url orbi_0148.cam1-1.mp4.
…
Applying option c:v (codec name) with argument copy.
Applying option an (disable audio) with argument 1.
Applying option f (force format) with argument mp4.
Successfully parsed a group of options.
Opening an output file: orbi_0148.cam1-1.mp4.
Successfully opened the file.
[mp4 @ 0x8fb230] Codec for stream 0 does not use global headers but container format requires global headers
Output #0, mp4, to 'orbi_0148.cam1-1.mp4':
Metadata:
encoder : Lavf56.40.101
Stream #0:0, 0, 1/1200000: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080, q=2-31, 29.97 fps, 29.97 tbr, 1200k tbn, 1200k tbc
…
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[NULL @ 0x8515b0] Current profile doesn't provide more RBSP data in PPS, skipping
No more output streams to write to, finishing.e=00:00:08.64 bitrate=5887.7kbits/s
frame= 270 fps= 30 q=-1.0 Lsize= 6443kB time=00:00:08.97 bitrate=5880.6kbits/s
video:6440kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.056839%
Input file #0 (orbi_0148.cam1.h264):
Input stream #0:0 (video): 270 packets read (6594052 bytes);
Total: 270 packets (6594052 bytes) demuxed
Output file #0 (orbi_0148.cam1-1.mp4):
Output stream #0:0 (video): 270 packets muxed (6594052 bytes);
Total: 270 packets (6594052 bytes) muxed
0 frames successfully decoded, 0 decoding errors
[AVIOContext @ 0x931650] Statistics: 34 seeks, 308 writeouts
[AVIOContext @ 0x851190] Statistics: 6594052 bytes read, 0 seeks -
MAINTAINERS : Remove Tomas Härdin from mxfdec.c
17 mai 2017, par James AlmerMAINTAINERS : Remove Tomas Härdin from mxfdec.c
See https://ffmpeg.org/pipermail/ffmpeg-devel/2017-May/211404.html
Signed-off-by : James Almer <jamrial@gmail.com>
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Xuggle mp4 output (isom mp41 codec ?) issues
19 mai 2017, par JonSidesWe’re using Xuggler to create an mp4 from pictures, with no audio at this point. The mp4 we’re getting is playable locally, but cannot be embedded in a webpage or chromecast. I suspect the issue is that we’re getting an older ISOM mp41 codec that’s not supported by HTML5 and chromecast. That’s a guess based on this snippet of header info :
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/mp41)
Codec ID/Url :
http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/mp41
Codec : MPEG-4
Codec : MPEG-4
Codec/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa
3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4vI can embed and chromecast mp42 type files. So the first part of my question is Am I on the right track in looking at isom and mp41 ? And if so, can I get Xuggler to output using a newer codec ?
I can post the full header if that would be helpful.
The above snippet is from mediainfo. Here’s the whole thing, which is too long for a comment :
General
Count : 325
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Inform : MPEG-4 (Base Media) : 377 KiB, 12 s 301 ms
Count of video streams : 1
Video_Format_List : MPEG-4 Visual
Video_Format_WithHint_List : MPEG-4 Visual
Codecs Video : MPEG-4 Visual
Complete name : C :\Users\Jon\Desktop\vid-1.mp4
Folder name : C :\Users\Jon\Desktop
File name : vid-1
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/mp41)
Codec ID/Url :
http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/mp41
Codec : MPEG-4
Codec : MPEG-4
Codec/Extensions usually used : mov mp4 m4v m4a m4b m4p 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
File size : 386063
File size : 377 KiB
File size : 377 KiB
File size : 377 KiB
File size : 377 KiB
File size : 377.0 KiB
Duration : 12301
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 00:00:12.301
Duration : 00:00:14:00
Duration : 00:00:12.301 (00:00:14:00)
Overall bit rate mode : CBR
Overall bit rate mode : Constant
Overall bit rate : 251077
Overall bit rate : 251 kb/s
Frame rate : 3.415
Frame rate : 3.415 FPS
Frame count : 42
Stream size : 1368
Stream size : 1.34 KiB (0%)
Stream size : 1 KiB
Stream size : 1.3 KiB
Stream size : 1.34 KiB
Stream size : 1.336 KiB
Stream size : 1.34 KiB (0%)
Proportion of this stream : 0.00354
HeaderSize : 36
DataSize : 384703
FooterSize : 1324
IsStreamable : No
File creation date : UTC 2017-05-05 19:49:25.209
File creation date (local) : 2017-05-05 15:49:25.209
File last modification date : UTC 2017-01-04 19:04:53.000
File last modification date (local) : 2017-01-04 15:04:53.000
Writing application : Lavf54.3.100
Writing application : Lavf54.3.100Video
Count : 338
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
Inform : 250 kb/s, 200*200 (1.000), at
3.415 FPS, MPEG-4 Visual (Simple@L1)
ID : 1
ID : 1
Format : MPEG-4 Visual
Commercial name : MPEG-4 Visual
Format profile : Simple@L1
Format settings, BVOP : No
Format settings, BVOP : No
Format settings, QPel : No
Format settings, QPel : No
Format settings, GMC : 0
Format settings, GMC : No warppoints
Format settings, Matrix : Default (H.263)
Format settings, Matrix : Default (H.263)
Internet media type : video/MP4V-ES
Codec ID : 20
Codec : MPEG-4V
Codec : MPEG-4 Visual
Codec/Family : MPEG-4V
Codec/CC : 20
Codec profile : Simple@L1
Codec settings, Packet bitstream : No
Codec settings, BVOP : No
Codec settings, QPel : No
Codec settings, GMC : 0
Codec settings, GMC : No warppoints
Codec settings, Matrix : Default (H.263)
Duration : 12301
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 12 s 301 ms
Duration : 00:00:12.301
Duration : 00:00:14:00
Duration : 00:00:12.301 (00:00:14:00)
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 250207
Bit rate : 250 kb/s
Width : 200
Width : 200 pixels
Height : 200
Height : 200 pixels
Sampled_Width : 200
Sampled_Height : 200
Pixel aspect ratio : 1.000
Display aspect ratio : 1.000
Display aspect ratio : 1.000
Rotation : 0.000
Frame rate mode : VFR
Frame rate mode : Variable
Frame rate : 3.415
Frame rate : 3.415 FPS
Minimum frame rate : 3.333
Minimum frame rate : 3.333 FPS
Maximum frame rate : 65535.000
Maximum frame rate : 65 535.000 FPS
Frame count : 42
Resolution : 8
Resolution : 8 bits
Colorimetry : 4:2:0
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Interlacement : PPF
Interlacement : Progressive
Compression mode : Lossy
Compression mode : Lossy
Bits/(Pixel*Frame) : 1.832
Stream size : 384695
Stream size : 376 KiB (100%)
Stream size : 376 KiB
Stream size : 376 KiB
Stream size : 376 KiB
Stream size : 375.7 KiB
Stream size : 376 KiB (100%)
Proportion of this stream : 0.99646
Writing library : Lavc54.14.101
Writing library : Lavc54.14.101
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