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Géodiversité
9 septembre 2011, par ,
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USGS Real-time Earthquakes
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La conservation du net art au musée. Les stratégies à l’œuvre
26 mai 2011
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Podcasting Legal guide
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To all Matomo plugin developers : Matomo 4 is coming, make your plugin compatible now
6 août 2020, par Matomo Core Team — DevelopmentWe’re planning to release the first beta of Matomo 4 in a few weeks. For making it easy for Matomo users to be able to upgrade to this beta, it would be great if as many plugins on the Marketplace as possible would be already updated and compatible with Matomo 4. Then many users would be able to upgrade to the first beta without any issues.
Presumably, as you put your plugin on our Marketplace, you want people to use it. Making your plugin compatible with Matomo 4 helps ensure that people will be able to find and keep using your plugin. If your plugin is not compatible with Matomo 4, your plugin will be automatically deactivated. We’ll be happy to help you achieve compatibility should there be any issue.
How do I upgrade my Matomo to Matomo 4 ?
If you have installed your Matomo development environment through git you can simply checkout the Matomo 4 branch “
4.x-dev
” by executing these commands :git checkout 4.x-dev
composer install
Alternatively, you can also download the latest version directly from GitHub as a zip file and run
composer install
afterwards.How do I upgrade my plugin to Matomo 4 ?
- We recommend you create a new branch for your plugin that supports Matomo 4. For example a branch named “
4.x-dev
“. This way you will be able to make changes to your plugin for Matomo 3 and Matomo 4 and release separate versions. - Check out our migration guide from Matomo 3 to Matomo 4 and the list of all breaking changes.
- Release a new version of your plugin in GitHub as usual.
While there were many breaking changes in Matomo 4, most of our Platform APIs remain unchanged, and almost all changes are for rarely used APIs. Often to make your plugin compatible it will just be a matter of adjusting the “
plugin.json
” file (as mentioned in the migration guide).You can find all developer documentation on our developer zone which has already been updated for Matomo 4.
How do I know my plugin changes were released successfully ?
If you have configured an email address within your “
plugin.json
” file, then you will receive a confirmation or an error email within a few minutes. Alternatively, you can also check out your plugin page on the Marketplace directly. If the plugin release was successful, you will see additional links below the download button showing which versions your plugin is compatible with.How can I downgrade to Matomo 3 or switch between Matomo 3 and Matomo 4 ?
To downgrade from Matomo 4 to Matomo 3 :
- check out the “
3.x-dev
” branch - run a composer install as usual.
- run the SQL statements from this downgrade guide to restore the previous MySQL schema.
When will the final Matomo 4 release be available ?
We estimate the final stable Matomo 4.0.0 release will be released in approx. 3 months.
What’s new in Matomo 4 ?
We don’t have a summary of the changes available just yet but you can see all closed issues within this release here.
Any questions or need help ?
If you have any questions, or experience any problems during the migration don’t hesitate to get in touch with us. We’ll be happy to help get your plugin compatible and the update published. If you find any undocumented breaking change or find any step during the migration process not clear, please let us know as well.
Thank you for contributing a plugin to the Marketplace and making Matomo better. We really appreciate your work !
-
FFMPEG, faulty input with only a few keyframes ?
9 août 2020, par browncatmegazordI have this video I can watch on MPC-HC alright, but I've been trying to re-encode it with FFMPEG to no avail.


The video unerringly stops 5 minutes into the clip and freezes. Checking the key frames it would seem like the last keyframe is indeed at around the 5 minute mark, even though the video is completely watchable for its entire duration of upwards an hour. I've been looking into finding a way to repopulate the index of keyframes or something, but the answer eludes me.


Both Handbrake and Premiere Pro fails to handle this video properly as well. Premiere Pro just imports it as though it's 5 minutes long, and Handbrake freezes when the encoding reaches the 5 minute mark.


Even doing a -c copy would give me an output that terminates at the 5 minute mark.


What can I do to fix this ?


Edit : Added log as requested.


ffmpeg version git-2020-02-27-9b22254 Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 9.2.1 (GCC) 20200122
 configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx --enable-ffnvcodec --enable-cuda-llvm --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt --enable-amf
 libavutil 56. 42.100 / 56. 42.100
 libavcodec 58. 73.102 / 58. 73.102
 libavformat 58. 39.101 / 58. 39.101
 libavdevice 58. 9.103 / 58. 9.103
 libavfilter 7. 77.100 / 7. 77.100
 libswscale 5. 6.100 / 5. 6.100
 libswresample 3. 6.100 / 3. 6.100
 libpostproc 55. 6.100 / 55. 6.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000019d5f659b00] st: 0 edit list: 1 Missing key frame while searching for timestamp: 20
[mov,mp4,m4a,3gp,3g2,mj2 @ 0000019d5f659b00] st: 0 edit list 1 Cannot find an index entry before timestamp: 20.
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from '[REDACTED].mp4':
 Metadata:
 major_brand : isom
 minor_version : 1
 compatible_brands: isom
 creation_time : 2009-07-27T12:06:40.000000Z
 Duration: 01:13:58.42, start: 0.000000, bitrate: 2671 kb/s
 Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 716x480 [SAR 8:9 DAR 179:135], 2504 kb/s, SAR 29127:32768 DAR 1007794:760071, 29.97 fps, 29.97 tbr, 48k tbn, 59.94 tbc (default)
 Metadata:
 rotate : 0
 creation_time : 2007-09-08T18:58:09.000000Z
 encoder : AVC Coding
 Side data:
 displaymatrix: rotation of -0.00 degrees
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 159 kb/s (default)
 Metadata:
 creation_time : 2009-07-27T12:06:47.000000Z
 handler_name : GPAC ISO Audio Handler
Stream mapping:
 Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
 Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
[libx264 @ 0000019d5f65de40] using SAR=8/9
[libx264 @ 0000019d5f65de40] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0000019d5f65de40] profile High 4:4:4 Predictive, level 3.0, 4:2:0, 8-bit
[libx264 @ 0000019d5f65de40] 64 - core 159 - H.264/MPEG-4 AVC codec - Copyleft 2003-2019 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=0 mixed_ref=1 me_range=16 chroma_me=1 trellis=0 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=0 chroma_qp_offset=0 threads=9 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc=cqp mbtree=0 qp=0
Output #0, mp4, to '[REDACTED].mp4':
 Metadata:
 major_brand : isom
 minor_version : 1
 compatible_brands: isom
 encoder : Lavf58.39.101
 Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv420p(progressive), 716x480 [SAR 29127:32768 DAR 1007794:760071], q=-1--1, 29.97 fps, 11988 tbn, 29.97 tbc (default)
 Metadata:
 encoder : Lavc58.73.102 libx264
 creation_time : 2007-09-08T18:58:09.000000Z
 Side data:
 cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
 displaymatrix: rotation of -0.00 degrees
 Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 192 kb/s (default)
 Metadata:
 creation_time : 2009-07-27T12:06:47.000000Z
 handler_name : GPAC ISO Audio Handler
 encoder : Lavc58.73.102 aac
frame= 9958 fps= 70 q=-1.0 Lsize= 960472kB time=00:11:13.32 bitrate=11685.6kbits/s speed=4.71x
video:944292kB audio:15836kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.035744%
[libx264 @ 0000015f858dde40] frame I:46 Avg QP: 0.00 size:113701
[libx264 @ 0000015f858dde40] frame P:9912 Avg QP: 0.00 size: 97026
[libx264 @ 0000015f858dde40] mb I I16..4: 52.6% 10.7% 36.7%
[libx264 @ 0000015f858dde40] mb P I16..4: 22.5% 5.5% 10.5% P16..4: 31.8% 15.2% 11.1% 0.0% 0.0% skip: 3.4%
[libx264 @ 0000015f858dde40] 8x8 transform intra:14.3% inter:40.9%
[libx264 @ 0000015f858dde40] coded y,uvDC,uvAC intra: 95.6% 84.9% 84.0% inter: 81.2% 83.0% 82.5%
[libx264 @ 0000015f858dde40] i16 v,h,dc,p: 53% 44% 2% 1%
[libx264 @ 0000015f858dde40] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 40% 47% 8% 1% 1% 1% 1% 1% 1%
[libx264 @ 0000015f858dde40] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 44% 5% 3% 5% 4% 2% 3% 1%
[libx264 @ 0000015f858dde40] i8c dc,h,v,p: 12% 44% 43% 1%
[libx264 @ 0000015f858dde40] Weighted P-Frames: Y:1.0% UV:0.2%
[libx264 @ 0000015f858dde40] ref P L0: 59.1% 10.2% 27.8% 2.9% 0.0%
[libx264 @ 0000015f858dde40] kb/s:23281.49
[aac @ 0000015f85b5b880] Qavg: 182.070



-
Need help configuring FFMPEG to work with a webcams h264 stream
9 août 2020, par The Welsh DragonI have been trying to get a H264 stream from a H264 usb webcam working but I am not making much progress so I'm hoping someone knows FFMPEG better than me !


There are dozens of questions/answers on SO but none solve my problem.


In short, I get a very pixelated (or sometimes mostly green) screen. I am using VLC to test the stream which is coming via an RTSP server. I am using FFMPEG to copy the webcam stream to the local RTSP server.


The webcam also supports YUYV which I can get working - it is just the h264 stream causing me problems.


So this is how the device is presented :


H264 USB Camera: USB Camera (usb-20980000.usb-1):
 /dev/video0
 /dev/video1
 /dev/video2
 /dev/video3



/dev/video0 is the YUYV and MPEG stream
/dev/video2 is the h264 stream that has the following capabilities :


ioctl: VIDIOC_ENUM_FMT
 Type: Video Capture

 [0]: 'H264' (H.264, compressed)
 Size: Discrete 1920x1080
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 1280x720
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 800x600
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 640x480
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 640x360
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 352x288
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 320x240
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Size: Discrete 1920x1080
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)
 Interval: Discrete 0.033s (30.000 fps)
 Interval: Discrete 0.040s (25.000 fps)
 Interval: Discrete 0.067s (15.000 fps)



I have tried various resolutions, the smaller giving slightly less pixelated images but none are usable and definitely dont compare to the YUYV high resolution results.


This (YUYV) command works :


ffmpeg -input_format yuyv422 -f video4linux2 -s 1280x720 -r 10 -i /dev/video0 -c:v h264_omx -r 10 -b:v 2M -an -f rtsp rtsp://localhost:80/live/stream



These two h264 options dont work :


ffmpeg -input_format h264 -f video4linux2 -video_size 1920x1080 -framerate 30 -i /dev/video0 -c:v copy -an -f rtsp rtsp://localhost:80/live/stream



ffmpeg -re -i /dev/video2 -video_size 800x600 -framerate 15 -pix_fmt yuv420p -tune zerolatency -c:v copy -an -f rtsp rtsp://localhost:80/live/stream



For that last command the FFMPEG output looks like this :


ffmpeg version git-2020-08-07-6fdf3cc Copyright (c) 2000-2020 the FFmpeg developers
 built with gcc 8 (Raspbian 8.3.0-6+rpi1)
 configuration: --extra-ldflags=-latomic --arch=armel --target-os=linux --enable-gpl --enable-omx --enable-omx-rpi --enable-nonfree --enable-libfreetype --enable-libx264 --enable-libmp3lame --enable-mmal --enable-indev=alsa --enable-outdev=alsa
 libavutil 56. 58.100 / 56. 58.100
 libavcodec 58.100.100 / 58.100.100
 libavformat 58. 50.100 / 58. 50.100
 libavdevice 58. 11.101 / 58. 11.101
 libavfilter 7. 87.100 / 7. 87.100
 libswscale 5. 8.100 / 5. 8.100
 libswresample 3. 8.100 / 3. 8.100
 libpostproc 55. 8.100 / 55. 8.100
Input #0, video4linux2,v4l2, from '/dev/video2':
 Duration: N/A, start: 1353.265049, bitrate: N/A
 Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, 30 fps, 30 tbr, 1000k tbn, 2000k tbc
[udp @ 0x38c29f0] attempted to set receive buffer to size 393216 but it only ended up set as 360448
[udp @ 0x38d7b50] attempted to set receive buffer to size 393216 but it only ended up set as 360448
Output #0, rtsp, to 'rtsp://localhost:80/live/stream':
 Metadata:
 encoder : Lavf58.50.100
 Stream #0:0: Video: h264 (Main), yuv420p(progressive), 1920x1080, q=2-31, 30 fps, 30 tbr, 90k tbn, 1000k tbc
Stream mapping:
 Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[rtsp @ 0x38fd890] Timestamps are unset in a packet for stream 0. This is deprecated and will stop working in the future. Fix your code to set the timestamps properly
[rtsp @ 0x38fd890] Non-monotonous DTS in output stream 0:0; previous: 0, current: 0; changing to 1. This may result in incorrect timestamps in the output file.
frame= 348 fps= 18 q=-1.0 size=N/A time=00:00:21.03 bitrate=N/A speed=1.09x



The issue looks like it is bandwidth related or the lack of processing power in the device being used BUT the YUYV works at a high resolution and (taking a completely different approach i.e. not using FFMPEG) I can get a very decent MPEG stream working on the same device.


So any FFMPEG experts out there who can help me with getting the correct parameters for a h264 stream ?