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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 (...) -
Contribute to documentation
13 avril 2011Documentation is vital to the development of improved technical capabilities.
MediaSPIP welcomes documentation by users as well as developers - including : critique of existing features and functions articles contributed by developers, administrators, content producers and editors screenshots to illustrate the above translations of existing documentation into other languages
To contribute, register to the project users’ mailing (...) -
Ajouter notes et légendes aux images
7 février 2011, parPour pouvoir ajouter notes et légendes aux images, la première étape est d’installer le plugin "Légendes".
Une fois le plugin activé, vous pouvez le configurer dans l’espace de configuration afin de modifier les droits de création / modification et de suppression des notes. Par défaut seuls les administrateurs du site peuvent ajouter des notes aux images.
Modification lors de l’ajout d’un média
Lors de l’ajout d’un média de type "image" un nouveau bouton apparait au dessus de la prévisualisation (...)
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ffmpeg streaming UDP port is closed [closed]
26 décembre 2023, par BrilliantContractI'm trying to use ffmpeg in order to transcode RTSP stream from CCTV to HLS stream so it could be accessed through a web server.


ffmpeg used to stream video from CCTV with following command


$ ffmpeg -i "rtsp://cam-1.loc:554?user=admin&password=admin&channel=1&stream=0" -hls_time 3 -hls_wrap 10 -f mpegts udp://localhost:6601
ffmpeg version 4.2.8 Copyright (c) 2000-2022 the FFmpeg developers
 built with gcc 8 (GCC)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-libsrt --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3 --enable-vapoursynth --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --enable-libzvbi --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
[rtsp @ 0x5576c7340600] getaddrinfo(cam-1.loc): Name or service not known
Guessed Channel Layout for Input Stream #0.1 : mono
Input #0, rtsp, from 'rtsp://cam-1.loc:554?user=admin&password=admin&channel=1&stream=0':
 Metadata:
 title : RTSP Session
 Duration: N/A, start: 0.000000, bitrate: N/A
 Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 25 fps, 25 tbr, 90k tbn, 50 tbc
 Stream #0:1: Audio: pcm_alaw, 8000 Hz, mono, s16, 64 kb/s
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> mpeg2video (native))
 Stream #0:1 -> #0:1 (pcm_alaw (native) -> mp2 (native))
Press [q] to stop, [?] for help
Output #0, mpegts, to 'udp://localhost:6601':
 Metadata:
 title : RTSP Session
 encoder : Lavf58.29.100
 Stream #0:0: Video: mpeg2video (Main), yuv420p, 1920x1080, q=2-31, 200 kb/s, 25 fps, 90k tbn, 25 tbc
 Metadata:
 encoder : Lavc58.54.100 mpeg2video
 Side data:
 cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
 Stream #0:1: Audio: mp2, 16000 Hz, mono, s16, 160 kb/s
 Metadata:
 encoder : Lavc58.54.100 mp2
[rtsp @ 0x5576c7340600] max delay reached. need to consume packette=5338.9kbits/s dup=0 drop=5 speed=1.12x 
[rtsp @ 0x5576c7340600] RTP: missed 3 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 6 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 6 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 4 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 6 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 6 packets
[h264 @ 0x5576c7993c80] concealing 972 DC, 972 AC, 972 MV errors in I frame
rtsp://cam-1.loc:554?user=admin&password=admin&channel=1&stream=0: corrupt decoded frame in stream 0=1.11x 
[rtsp @ 0x5576c7340600] max delay reached. need to consume packette=5298.4kbits/s dup=0 drop=5 speed=1.02x 
[rtsp @ 0x5576c7340600] RTP: missed 2 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 4 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 3 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 4 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 5 packets
[rtsp @ 0x5576c7340600] max delay reached. need to consume packet
[rtsp @ 0x5576c7340600] RTP: missed 2 packets
[h264 @ 0x5576c779b9c0] cabac decode of qscale diff failed at 66 60
[h264 @ 0x5576c779b9c0] error while decoding MB 66 60, bytestream 9825
[h264 @ 0x5576c779b9c0] concealing 943 DC, 943 AC, 943 MV errors in I frame
rtsp://cam-1.loc:554?user=admin&password=admin&channel=1&stream=0: corrupt decoded frame in stream 0=1.02x 
frame= 1315 fps= 25 q=31.0 Lsize= 34249kB time=00:00:53.32 bitrate=5261.8kbits/s dup=0 drop=5 speed=1.02x 
video:30544kB audio:1042kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 8.431973%



nmap used to check if 6601 port is open


$ nmap -Pn localhost -p 6601
Starting Nmap 7.70 ( https://nmap.org ) at 2023-12-26 10:47 UTC
Nmap scan report for localhost (127.0.0.1)
Host is up (0.0011s latency).
Other addresses for localhost (not scanned): ::1

PORT STATE SERVICE
6601/tcp closed mstmg-sstp

Nmap done: 1 IP address (1 host up) scanned in 0.06 seconds



However, ffplayer able to play video stream


ffplay udp://localhost:6601
ffplay version 4.2.8 Copyright (c) 2003-2022 the FFmpeg developers
 built with gcc 8 (GCC)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-libsrt --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3 --enable-vapoursynth --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --enable-libzvbi --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
[mpeg2video @ 0x7f1ad854afc0] Invalid frame dimensions 0x0. f=0/0 
 Last message repeated 7 times
Input #0, mpegts, from 'udp://localhost:6601':0KB sq= 0B f=0/0 
 Duration: N/A, start: 59.288000, bitrate: N/A
 Program 1 
 Metadata:
 service_name : RTSP Session
 service_provider: FFmpeg
 Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
 Stream #0:1[0x101]: Audio: mp2 ([4][0][0][0] / 0x0004), 16000 Hz, mono, s16p, 160 kb/s



VLC cannot play the video stream :


vlc udp://localhost:6601
VLC media player 3.0.18 Vetinari (revision )
[000055769aa81ba0] main libvlc: Running vlc with the default interface. Use 'cvlc' to use vlc without interface.
Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway.
[00007fec64011e90] mjpeg demux error: cannot peek



ffprobe output


ffprobe udp://localhost:6601
ffprobe version 4.2.8 Copyright (c) 2007-2022 the FFmpeg developers
 built with gcc 8 (GCC)
 configuration: --prefix=/usr --bindir=/usr/bin --datadir=/usr/share/ffmpeg --docdir=/usr/share/doc/ffmpeg --incdir=/usr/include/ffmpeg --libdir=/usr/lib64 --mandir=/usr/share/man --arch=x86_64 --optflags='-O2 -g -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -fexceptions -fstack-protector-strong -grecord-gcc-switches -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection' --extra-ldflags='-Wl,-z,relro -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld ' --extra-cflags=' ' --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libvo-amrwbenc --enable-version3 --enable-bzlib --disable-crystalhd --enable-fontconfig --enable-frei0r --enable-gcrypt --enable-gnutls --enable-ladspa --enable-libaom --enable-libdav1d --enable-libass --enable-libbluray --enable-libcdio --enable-libdrm --enable-libjack --enable-libfreetype --enable-libfribidi --enable-libgsm --enable-libmp3lame --enable-nvenc --enable-openal --enable-opencl --enable-opengl --enable-libopenjpeg --enable-libopus --enable-libpulse --enable-librsvg --enable-libsrt --enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora --enable-libvorbis --enable-libv4l2 --enable-libvidstab --enable-libvmaf --enable-version3 --enable-vapoursynth --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxvid --enable-libzimg --enable-libzvbi --enable-avfilter --enable-avresample --enable-libmodplug --enable-postproc --enable-pthreads --disable-static --enable-shared --enable-gpl --disable-debug --disable-stripping --shlibdir=/usr/lib64 --enable-libmfx --enable-runtime-cpudetect
 libavutil 56. 31.100 / 56. 31.100
 libavcodec 58. 54.100 / 58. 54.100
 libavformat 58. 29.100 / 58. 29.100
 libavdevice 58. 8.100 / 58. 8.100
 libavfilter 7. 57.100 / 7. 57.100
 libavresample 4. 0. 0 / 4. 0. 0
 libswscale 5. 5.100 / 5. 5.100
 libswresample 3. 5.100 / 3. 5.100
 libpostproc 55. 5.100 / 55. 5.100
[mpeg2video @ 0x55e1be0910c0] Invalid frame dimensions 0x0.
 Last message repeated 9 times
Input #0, mpegts, from 'udp://localhost:6601':
 Duration: N/A, start: 262.760000, bitrate: N/A
 Program 1 
 Metadata:
 service_name : RTSP Session
 service_provider: FFmpeg
 Stream #0:0[0x100]: Video: mpeg2video (Main) ([2][0][0][0] / 0x0002), yuv420p(tv, progressive), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
 Stream #0:1[0x101]: Audio: mp2 ([4][0][0][0] / 0x0004), 16000 Hz, mono, s16p, 160 kb/s



Why the video stream is not playing in VLC ?


Why nmap do not see that UPD port is open ?


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