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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (39)
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La file d’attente de SPIPmotion
28 novembre 2010, parUne file d’attente stockée dans la base de donnée
Lors de son installation, SPIPmotion crée une nouvelle table dans la base de donnée intitulée spip_spipmotion_attentes.
Cette nouvelle table est constituée des champs suivants : id_spipmotion_attente, l’identifiant numérique unique de la tâche à traiter ; id_document, l’identifiant numérique du document original à encoder ; id_objet l’identifiant unique de l’objet auquel le document encodé devra être attaché automatiquement ; objet, le type d’objet auquel (...) -
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 (...) -
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 (6271)
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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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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 -
Merge commit '1202b712690c14f0efb06e4ad8b06c5b3df6822a'
11 mai 2017, par James AlmerMerge commit '1202b712690c14f0efb06e4ad8b06c5b3df6822a'
* commit '1202b712690c14f0efb06e4ad8b06c5b3df6822a' :
theora : export cropping information instead of handling it internally
h264dec : export cropping information instead of handling it internally
h264dec : be more explicit in handling container cropping
hevcdec : export cropping information instead of handling it internallyThis commit is a noop.
This changes the cropping behavior, when it's supposedly only meant to move
it outside of the decoder.
See https://ffmpeg.org/pipermail/ffmpeg-devel/2017-May/211239.html for the
discussion about it.Merged-by : James Almer <jamrial@gmail.com>