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Websites made with MediaSPIP
2 mai 2011, parThis page lists some websites based on MediaSPIP.
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Creating farms of unique websites
13 avril 2011, parMediaSPIP platforms can be installed as a farm, with a single "core" hosted on a dedicated server and used by multiple websites.
This allows (among other things) : implementation costs to be shared between several different projects / individuals rapid deployment of multiple unique sites creation of groups of like-minded sites, making it possible to browse media in a more controlled and selective environment than the major "open" (...) -
Les autorisations surchargées par les plugins
27 avril 2010, parMediaspip core
autoriser_auteur_modifier() afin que les visiteurs soient capables de modifier leurs informations sur la page d’auteurs
Sur d’autres sites (7803)
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FFMpeg and WebM/VP8
25 novembre 2011, par Anand SureshI am trying to use ffmpeg and ffserver to stream VP8 video.
I am using the following command to start FFMpeg :
ffmpeg -v 9 -loglevel 99 -f x11grab -s 1440x900 -r2 -i :0.0 -f webm http://localhost:8090/feed1.ffmThe above command abruptly terminates generating the following error :
> FFmpeg version 0.6.2-4:0.6.2-1ubuntu1.1, Copyright (c) 2000-2010 the Libav developers
built on Sep 16 2011 16:57:46 with gcc 4.5.2
configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --enable-shared --disable-static
WARNING: library configuration mismatch
libavutil configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavcodec configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavformat configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavdevice configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavfilter configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libswscale configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libpostproc configuration: --extra-version=4:0.6.2-1ubuntu1.1 --prefix=/usr --enable-avfilter --enable-avfilter-lavf --enable-vdpau --enable-bzlib --enable-libgsm --enable-libschroedinger --enable-libspeex --enable-libtheora --enable-libvorbis --enable-pthreads --enable-zlib --enable-libvpx --disable-stripping --enable-runtime-cpudetect --enable-vaapi --enable-gpl --enable-postproc --enable-swscale --enable-x11grab --enable-libdc1394 --shlibdir=/usr/lib/i686/cmov --cpu=i686 --enable-shared --disable-static --disable-ffmpeg --disable-ffplay
libavutil 50.15. 1 / 50.15. 1
libavcodec 52.72. 2 / 52.72. 2
libavformat 52.64. 2 / 52.64. 2
libavdevice 52. 2. 0 / 52. 2. 0
libavfilter 1.19. 0 / 1.19. 0
libswscale 0.11. 0 / 0.11. 0
libpostproc 51. 2. 0 / 51. 2. 0
[x11grab @ 0x9869420]device: :0.0 -> display: :0.0 x: 0 y: 0 width: 1440 height: 900
[x11grab @ 0x9869420]shared memory extension found
[x11grab @ 0x9869420]Probe buffer size limit 5000000 reached
[x11grab @ 0x9869420]Estimating duration from bitrate, this may be inaccurate
Input #0, x11grab, from ':0.0':
Duration: N/A, start: 1322253753.374957, bitrate: 41472 kb/s
Stream #0.0, 1, 1/1000000: Video: rawvideo, bgra, 1440x900, 1/1, 41472 kb/s, 1 tbr, 1000k tbn, 1 tbc
[libvpx @ 0x9876540]v0.9.6
[libvpx @ 0x9876540]--enable-pic --enable-shared --disable-install-bins --disable-install-srcs --target=x86-linux-gcc
[libvpx @ 0x9876540]vpx_codec_enc_cfg
[libvpx @ 0x9876540]generic settings
g_usage: 0
g_threads: 0
g_profile: 0
g_w: 320
g_h: 240
g_timebase: {1/30}
g_error_resilient: 0
g_pass: 0
g_lag_in_frames: 0
[libvpx @ 0x9876540]rate control settings
rc_dropframe_thresh: 0
rc_resize_allowed: 0
rc_resize_up_thresh: 60
rc_resize_down_thresh: 30
rc_end_usage: 0
rc_twopass_stats_in: (nil)(0)
rc_target_bitrate: 256
[libvpx @ 0x9876540]quantizer settings
rc_min_quantizer: 4
rc_max_quantizer: 63
[libvpx @ 0x9876540]bitrate tolerance
rc_undershoot_pct: 95
rc_overshoot_pct: 200
[libvpx @ 0x9876540]decoder buffer model
rc_buf_sz: 6000
rc_buf_initial_sz: 4000
rc_buf_optimal_sz: 5000
[libvpx @ 0x9876540]2 pass rate control settings
rc_2pass_vbr_bias_pct: 50
rc_2pass_vbr_minsection_pct: 0
rc_2pass_vbr_maxsection_pct: 400
[libvpx @ 0x9876540]keyframing settings
kf_mode: 1
kf_min_dist: 0
kf_max_dist: 9999
[libvpx @ 0x9876540]
[libvpx @ 0x9876540]vpx_codec_enc_cfg
[libvpx @ 0x9876540]generic settings
g_usage: 0
g_threads: 1
g_profile: 0
g_w: 1440
g_h: 900
g_timebase: {1/1}
g_error_resilient: 0
g_pass: 0
g_lag_in_frames: 0
[libvpx @ 0x9876540]rate control settings
rc_dropframe_thresh: 0
rc_resize_allowed: 0
rc_resize_up_thresh: 60
rc_resize_down_thresh: 30
rc_end_usage: 0
rc_twopass_stats_in: (nil)(0)
rc_target_bitrate: 200
[libvpx @ 0x9876540]quantizer settings
rc_min_quantizer: 1
rc_max_quantizer: 38
[libvpx @ 0x9876540]bitrate tolerance
rc_undershoot_pct: 95
rc_overshoot_pct: 200
[libvpx @ 0x9876540]decoder buffer model
rc_buf_sz: 6000
rc_buf_initial_sz: 4000
rc_buf_optimal_sz: 5000
[libvpx @ 0x9876540]2 pass rate control settings
rc_2pass_vbr_bias_pct: 50
rc_2pass_vbr_minsection_pct: 0
rc_2pass_vbr_maxsection_pct: 400
[libvpx @ 0x9876540]keyframing settings
kf_mode: 1
kf_min_dist: 0
kf_max_dist: 12
[libvpx @ 0x9876540]
[libvpx @ 0x9876540]vpx_codec_control
[libvpx @ 0x9876540] VP8E_SET_CPUUSED: 3
[libvpx @ 0x9876540] VP8E_SET_NOISE_SENSITIVITY: 0
Output #0, webm, to 'http://127.0.0.1:8090/feed1.ffm':
Metadata:
encoder : Lavf52.64.2
Stream #0.0, 0, 1/1000: Video: libvpx, yuv420p, 1440x900, 1/1, q=2-31, 200 kb/s, 1k tbn, 1 tbc
Stream mapping:
Stream #0.0 -> #0.0
Press [q] to stop encoding
[webm @ 0x98753b0]Writing block at offset 15, size 158658, pts 0, dts 0, duration 1000, flags 128
[webm @ 0x98753b0]Starting new cluster at offset 158681 bytes, pts 0Can anyone point out what I am doing wrong here ? Why does ffmpeg die everytime it starts a new cluster ?
Thanks
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Why does use of H264 in sender/receiver pipelines introduce just HUGE delay ?
24 janvier 2012, par Serguey ZefirovWhen I try to create pipeline that uses H264 to transmit video, I get some enormous delay, up to 10 seconds to transmit video from my machine to... my machine ! This is unacceptable for my goals and I'd like to consult StackOverflow over what I (or someone else) do wrong.
I took pipelines from gstrtpbin documentation page and slightly modified them to use Speex :
This is sender pipeline :
# !/bin/shgst-launch -v gstrtpbin name=rtpbin \
v4l2src ! ffmpegcolorspace ! ffenc_h263 ! rtph263ppay ! rtpbin.send_rtp_sink_0 \
rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=5000 \
rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=5001 sync=false async=false \
udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0 \
pulsesrc ! audioconvert ! audioresample ! audio/x-raw-int,rate=16000 ! \
speexenc bitrate=16000 ! rtpspeexpay ! rtpbin.send_rtp_sink_1 \
rtpbin.send_rtp_src_1 ! udpsink host=127.0.0.1 port=5002 \
rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5003 sync=false async=false \
udpsrc port=5007 ! rtpbin.recv_rtcp_sink_1Receiver pipeline :
!/bin/sh
gst-launch -v\
gstrtpbin name=rtpbin \
udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000, encoding-name=(string)H263-1998" \
port=5000 ! rtpbin.recv_rtp_sink_0 \
rtpbin. ! rtph263pdepay ! ffdec_h263 ! xvimagesink \
udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \
rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false async=false \
udpsrc caps="application/x-rtp,media=(string)audio, clock-rate=(int)16000, encoding-name=(string)SPEEX, encoding-params=(string)1, payload=(int)110" \
port=5002 ! rtpbin.recv_rtp_sink_1 \
rtpbin. ! rtpspeexdepay ! speexdec ! audioresample ! audioconvert ! alsasink \
udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 \
rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5007 sync=false async=falseThose pipelines, a combination of H263 and Speex, work fine enough. I snap my fingers near camera and micropohne and then I see movement and hear sound at the same time.
Then I changed pipelines to use H264 along the video path.
The sender becomes :
# !/bin/shgst-launch -v gstrtpbin name=rtpbin \
v4l2src ! ffmpegcolorspace ! x264enc bitrate=300 ! rtph264pay ! rtpbin.send_rtp_sink_0 \
rtpbin.send_rtp_src_0 ! udpsink host=127.0.0.1 port=5000 \
rtpbin.send_rtcp_src_0 ! udpsink host=127.0.0.1 port=5001 sync=false async=false \
udpsrc port=5005 ! rtpbin.recv_rtcp_sink_0 \
pulsesrc ! audioconvert ! audioresample ! audio/x-raw-int,rate=16000 ! \
speexenc bitrate=16000 ! rtpspeexpay ! rtpbin.send_rtp_sink_1 \
rtpbin.send_rtp_src_1 ! udpsink host=127.0.0.1 port=5002 \
rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5003 sync=false async=false \
udpsrc port=5007 ! rtpbin.recv_rtcp_sink_1And receiver becomes :
# !/bin/shgst-launch -v\
gstrtpbin name=rtpbin \
udpsrc caps="application/x-rtp,media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264" \
port=5000 ! rtpbin.recv_rtp_sink_0 \
rtpbin. ! rtph264depay ! ffdec_h264 ! xvimagesink \
udpsrc port=5001 ! rtpbin.recv_rtcp_sink_0 \
rtpbin.send_rtcp_src_0 ! udpsink port=5005 sync=false async=false \
udpsrc caps="application/x-rtp,media=(string)audio, clock-rate=(int)16000, encoding-name=(string)SPEEX, encoding-params=(string)1, payload=(int)110" \
port=5002 ! rtpbin.recv_rtp_sink_1 \
rtpbin. ! rtpspeexdepay ! speexdec ! audioresample ! audioconvert ! alsasink \
udpsrc port=5003 ! rtpbin.recv_rtcp_sink_1 \
rtpbin.send_rtcp_src_1 ! udpsink host=127.0.0.1 port=5007 sync=false async=falseThis is what happen under Ubuntu 10.04. I didn't noticed such huge delays on Ubuntu 9.04 - the delays there was in range 2-3 seconds, AFAIR.
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How to record UDP stream with FFMPEG in chunks ?
16 avril 2017, par user1394281I’m looking for a way to record a video UDP stream using ffmpeg but in 10mn chunks.
I currently use the following to get 10mn of video (with h264 transcoding)."ffmpeg -i udp ://239.0.77.15:5000 -map 0:0 -map 0:1 -s 640x360 -vcodec libx264 -g 100 -vb 500000 -r 25 -strict experimental -vf yadif -acodec aac -ab 96000 -ac 2 -t 600 -y /media/test.m4 "
My problem is that using command line ffmpeg needs time to resync with the udp stream loosing 2 seconds of video each time. Is it normal ?
Any idea if there is a way to do it in command line or should I tried to use the ffmpeg API ?
Thanks in advance
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