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The Slip - Artworks
26 septembre 2011, par
Mis à jour : Septembre 2011
Langue : English
Type : Texte
Autres articles (96)
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Menus personnalisés
14 novembre 2010, parMediaSPIP utilise le plugin Menus pour gérer plusieurs menus configurables pour la navigation.
Cela permet de laisser aux administrateurs de canaux la possibilité de configurer finement ces menus.
Menus créés à l’initialisation du site
Par défaut trois menus sont créés automatiquement à l’initialisation du site : Le menu principal ; Identifiant : barrenav ; Ce menu s’insère en général en haut de la page après le bloc d’entête, son identifiant le rend compatible avec les squelettes basés sur Zpip ; (...) -
Configuration spécifique d’Apache
4 février 2011, parModules spécifiques
Pour la configuration d’Apache, il est conseillé d’activer certains modules non spécifiques à MediaSPIP, mais permettant d’améliorer les performances : mod_deflate et mod_headers pour compresser automatiquement via Apache les pages. Cf ce tutoriel ; mode_expires pour gérer correctement l’expiration des hits. Cf ce tutoriel ;
Il est également conseillé d’ajouter la prise en charge par apache du mime-type pour les fichiers WebM comme indiqué dans ce tutoriel.
Création d’un (...) -
Mise à disposition des fichiers
14 avril 2011, parPar défaut, lors de son initialisation, MediaSPIP ne permet pas aux visiteurs de télécharger les fichiers qu’ils soient originaux ou le résultat de leur transformation ou encodage. Il permet uniquement de les visualiser.
Cependant, il est possible et facile d’autoriser les visiteurs à avoir accès à ces documents et ce sous différentes formes.
Tout cela se passe dans la page de configuration du squelette. Il vous faut aller dans l’espace d’administration du canal, et choisir dans la navigation (...)
Sur d’autres sites (5778)
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Add image to video using ffmpeg , the output file can't be played
22 juin 2017, par StevenChenI need to watermark a mp4 video , but it is not working , It has bothered me for a week,please help me
here is my code :ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4
****This command was executed successfully ,but The size of output.mp4 only is 50kb and it cann’t play. the command detail :****
> ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4
ffmpeg version git-2017-06-08-a3b5b60 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-18)
configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-openssl
libavutil 55. 63.100 / 55. 63.100
libavcodec 57. 96.101 / 57. 96.101
libavformat 57. 72.101 / 57. 72.101
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 91.100 / 6. 91.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
Input #0, png_pipe, from 'watermark.png':
Duration: N/A, bitrate: N/A
Stream #0:0: Video: png, rgba(pc), 215x115 [SAR 2835:2835 DAR 43:23], 25 tbr, 25 tbn, 25 tbc
Invalid file index 1 in filtergraph description [0:v][1:v] overlay=10:10.
[root@localhost wwwroot]# ffmpeg -i sss01.mp4 -i watermark.png -filter_complex "[0:v][1:v] overlay=10:10" -pix_fmt yuv420p -c:a copy output.mp4
ffmpeg version git-2017-06-08-a3b5b60 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 4.4.7 (GCC) 20120313 (Red Hat 4.4.7-18)
configuration: --prefix=/root/ffmpeg_build --extra-cflags=-I/root/ffmpeg_build/include --extra-ldflags=-L/root/ffmpeg_build/lib --bindir=/root/bin --extra-libs=-ldl --enable-gpl --enable-nonfree --enable-libfdk_aac --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-openssl
libavutil 55. 63.100 / 55. 63.100
libavcodec 57. 96.101 / 57. 96.101
libavformat 57. 72.101 / 57. 72.101
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 91.100 / 6. 91.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'sss01.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.72.101
Duration: 00:03:09.80, start: 0.000000, bitrate: 1547 kb/s
Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 1416 kb/s, 24 fps, 24 tbr, 90k tbn, 48 tbc (default)
Metadata:
handler_name : VideoHandler
Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
Stream #0:2(eng): Subtitle: mov_text (tx3g / 0x67337874), 0 kb/s (default)
Metadata:
handler_name : SubtitleHandler
Input #1, png_pipe, from 'watermark.png':
Duration: N/A, bitrate: N/A
Stream #1:0: Video: png, rgba(pc), 215x115 [SAR 2835:2835 DAR 43:23], 25 tbr, 25 tbn, 25 tbc
File 'output.mp4' already exists. Overwrite ? [y/N] y
Stream mapping:
Stream #0:0 (h264) -> overlay:main
Stream #1:0 (png) -> overlay:overlay
overlay -> Stream #0:0 (libx264)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
[libx264 @ 0xb4ee7e0] using SAR=1/1
[libx264 @ 0xb4ee7e0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0xb4ee7e0] profile High, level 4.0
[libx264 @ 0xb4ee7e0] 264 - core 150 - H.264/MPEG-4 AVC codec - Copyleft 2003-2017 - 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=1 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=24 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
Output #0, mp4, to 'output.mp4':
Metadata:
major_brand : isom
minor_version : 512
compatible_brands: isomiso2avc1mp41
encoder : Lavf57.72.101
Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv420p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 24 fps, 12288 tbn, 24 tbc (default)
Metadata:
encoder : Lavc57.96.101 libx264
Side data:
cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
Stream #0:1(und): Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
handler_name : SoundHandler
frame= 20 fps=0.0 q=0.0 size= 0kB time=00:00:00.81 bitrate= 0.0kbits/sframe= 30 fps= 29 q=0.0 size= 0kB time=00:00:01.23 bitrate= 0.0kbits/sframe= 37 fps= 23 q=0.0 size= 0kB time=00:00:01.50 bitrate= 0.0kbits/sframe= 42 fps= 11 q=28.0 size= 40kB time=00:00:01.71 bitrate= 190.6kbits/frame= 44 fps= 10 q=28.0 size= 46kB time=00:00:01.81 bitrate= 210.2kbits/Killedd=0.41x -
why would ffmpeg rotate 2nd video on concatenation when I don't want it to or seemingly ask for it ?
10 janvier 2023, par Pompey Magnushere is the command I run :


ffmpeg -f concat -an -i ./files.txt ztestout.mp4



I have about 5 videos, but just to test I did with two.
the 2nd video gets flipped upside down, even though opening each video in VLC opens and plays them correctly.


Any ideas why it would do that ? Is the metadata wrong in the video ? I took all the videos I'm trying to concat with the same android phone.


output below, and I noticed its says rotation zero degrees :


ffmpeg version 5.1.2 Copyright (c) 2000-2022 the FFmpeg developers
 built with Apple clang version 14.0.0 (clang-1400.0.29.102)
 configuration: --prefix=/opt/homebrew/Cellar/ffmpeg/5.1.2 --enable-shared --enable-pthreads --enable-version3 --cc=clang --host-cflags= --host-ldflags= --enable-ffplay --enable-gnutls --enable-gpl --enable-libaom --enable-libbluray --enable-libdav1d --enable-libmp3lame --enable-libopus --enable-librav1e --enable-librist --enable-librubberband --enable-libsnappy --enable-libsrt --enable-libtesseract --enable-libtheora --enable-libvidstab --enable-libvmaf --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libxvid --enable-lzma --enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libspeex --enable-libsoxr --enable-libzmq --enable-libzimg --disable-libjack --disable-indev=jack --enable-videotoolbox --enable-neon
 libavutil 57. 28.100 / 57. 28.100
 libavcodec 59. 37.100 / 59. 37.100
 libavformat 59. 27.100 / 59. 27.100
 libavdevice 59. 7.100 / 59. 7.100
 libavfilter 8. 44.100 / 8. 44.100
 libswscale 6. 7.100 / 6. 7.100
 libswresample 4. 7.100 / 4. 7.100
 libpostproc 56. 6.100 / 56. 6.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x138804730] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from './files.txt':
 Duration: N/A, start: 0.000000, bitrate: 17255 kb/s
 Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuvj420p(pc, smpte170m, progressive), 1920x1080, 16999 kb/s, SAR 1:1 DAR 16:9, 30.01 fps, 30 tbr, 90k tbn
 Metadata:
 creation_time : 2023-01-08T13:32:50.000000Z
 handler_name : VideoHandle
 vendor_id : [0][0][0][0]
 Side data:
 displaymatrix: rotation of -180.00 degrees
 Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 256 kb/s
 Metadata:
 creation_time : 2023-01-08T13:32:50.000000Z
 handler_name : SoundHandle
 vendor_id : [0][0][0][0]
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x137f07fe0] using SAR=1/1
[libx264 @ 0x137f07fe0] using cpu capabilities: ARMv8 NEON
[libx264 @ 0x137f07fe0] profile High, level 4.0, 4:2:0, 8-bit
[libx264 @ 0x137f07fe0] 264 - core 164 r3095 baee400 - H.264/MPEG-4 AVC codec - Copyleft 2003-2022 - 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=15 lookahead_threads=2 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
Output #0, mp4, to 'ztestout.mp4':
 Metadata:
 encoder : Lavf59.27.100
 Stream #0:0(eng): Video: h264 (avc1 / 0x31637661), yuvj420p(pc, smpte170m, progressive), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 30 fps, 15360 tbn
 Metadata:
 creation_time : 2023-01-08T13:32:50.000000Z
 handler_name : VideoHandle
 vendor_id : [0][0][0][0]
 encoder : Lavc59.37.100 libx264
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 displaymatrix: rotation of -0.00 degrees
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x138904b40] Auto-inserting h264_mp4toannexb bitstream filterdrop=20 speed=3.67x 
frame=74497 fps=109 q=-1.0 Lsize= 1740353kB time=00:41:23.13 bitrate=5741.5kbits/s dup=0 drop=25 speed=3.64x 
video:1739531kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.047236%
[libx264 @ 0x137f07fe0] frame I:300 Avg QP:20.73 size:294110
[libx264 @ 0x137f07fe0] frame P:29265 Avg QP:23.65 size: 45500
[libx264 @ 0x137f07fe0] frame B:44932 Avg QP:27.95 size: 8045
[libx264 @ 0x137f07fe0] consecutive B-frames: 19.4% 0.4% 0.7% 79.5%
[libx264 @ 0x137f07fe0] mb I I16..4: 5.5% 43.8% 50.7%
[libx264 @ 0x137f07fe0] mb P I16..4: 0.2% 0.9% 0.7% P16..4: 36.9% 13.9% 10.8% 0.0% 0.0% skip:36.6%
[libx264 @ 0x137f07fe0] mb B I16..4: 0.0% 0.1% 0.1% B16..8: 30.0% 3.0% 1.3% direct: 1.1% skip:64.3% L0:38.1% L1:55.8% BI: 6.1%
[libx264 @ 0x137f07fe0] 8x8 transform intra:49.7% inter:45.0%
[libx264 @ 0x137f07fe0] coded y,uvDC,uvAC intra: 84.0% 82.3% 41.9% inter: 12.8% 10.8% 0.5%
[libx264 @ 0x137f07fe0] i16 v,h,dc,p: 30% 17% 8% 45%
[libx264 @ 0x137f07fe0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 17% 25% 12% 4% 7% 7% 12% 7% 8%
[libx264 @ 0x137f07fe0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 21% 25% 12% 5% 7% 7% 10% 6% 8%
[libx264 @ 0x137f07fe0] i8c dc,h,v,p: 47% 22% 22% 9%
[libx264 @ 0x137f07fe0] Weighted P-Frames: Y:0.3% UV:0.0%
[libx264 @ 0x137f07fe0] ref P L0: 70.3% 10.7% 13.9% 5.0% 0.0%
[libx264 @ 0x137f07fe0] ref B L0: 91.8% 6.2% 2.0%
[libx264 @ 0x137f07fe0] ref B L1: 95.7% 4.3%
[libx264 @ 0x137f07fe0] kb/s:5738.58



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How can I stream mjpeg file as rtsp
24 août 2013, par Ilya YevlampievWe have an mjpeg video, obtained from the webcam and stored into *.avi file, still encoded as mjpeg.
We need to restream this file as rtsp (and stil preserve the mjpeg there, i.e. no decoding). The goal is to emulate the webcam this video was obtained from for the software that processes the video. The file can be open with vlc/ffplay with no problems. The ffmpeg behaves like it is streaming it, however, ffplay/vlc can't open this stream.
We tried to stream if with gstreamer.
1) we fount no free rtsp sink element for gstreamer pipeline. So, is there a free analogue for rtspsink to launch this pipeline with gst-launch ? we need and only cast, so we don't need so advanced element as rtspsink is.
2) we also tried to build own simple rtsp server as described in http://weeklybuild.com/2013/01/creating-an-rtsp-stream-with-gstreamer/
replacing videotestsrc with filesrc ; but what kind of elements we should use there ? usage of an only filesrc doesn't help ; we get the same problem as if we stream with ffmpeg. But what kind of lements we need there, if we dont' wan to decode/encode it, just to stream the file (to reproduce the thing what the webcam actually does).
$ ffplay rtsp://127.0.0.1:8554/test -loglevel debug
avplay version 0.8.5-6:0.8.5-1, Copyright (c) 2003-2012 the Libav developers
built on Jan 13 2013 12:05:48 with gcc 4.7.2
configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.5-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avutil configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avcodec configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
avformat configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
swscale configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable-postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
postproc configuration: --arch=amd64 --enable-pthreads --enable-runtime-cpudetect --extra-version='6:0.8.4-1' --libdir=/usr/lib/x86_64-linux-gnu --prefix=/usr --enable-bzlib --enable-libdc1394 --enable-libdirac --enable-libfreetype --enable-frei0r --enable-gnutls --enable-libgsm --enable-libmp3lame --enable-librtmp --enable-libopencv --enable-libopenjpeg --enable-libpulse --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-vaapi --enable-vdpau --enable-libvorbis --enable-libvpx --enable-zlib --enable-gpl --enable- postproc --enable-swscale --enable-libcdio --enable-x11grab --enable-libx264 --enable-libxvid --shlibdir=/usr/lib/x86_64-linux-gnu --enable-shared --disable-static
libavutil 51. 22. 1 / 51. 22. 1
libavcodec 53. 35. 0 / 53. 35. 0
libavformat 53. 21. 1 / 53. 21. 0
libavdevice 53. 2. 0 / 53. 2. 0
libavfilter 2. 15. 0 / 2. 15. 0
libswscale 2. 1. 0 / 2. 1. 0
libpostproc 52. 0. 0 / 52. 0. 0
[rtsp @ 0x7f558c0008c0] method DESCRIBE failed: 503 Service Unavailable
[rtsp @ 0x7f558c0008c0] CSeq: 2
Server: GStreamer RTSP server
Date: Thu, 22 Aug 2013 07:49:30 GMT
rtsp://127.0.0.1:8554/test: Invalid data found when processing inputAnd everything is okay when I try gstreamer server built as in example, i.e. using videotestsrc