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Revolution of Open-source and film making towards open film making
6 octobre 2011, par
Mis à jour : Juillet 2013
Langue : English
Type : Texte
Autres articles (47)
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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 -
Contribute to translation
13 avril 2011You can help us to improve the language used in the software interface to make MediaSPIP more accessible and user-friendly. You can also translate the interface into any language that allows it to spread to new linguistic communities.
To do this, we use the translation interface of SPIP where the all the language modules of MediaSPIP are available. Just subscribe to the mailing list and request further informantion on translation.
MediaSPIP is currently available in French and English (...) -
HTML5 audio and video support
13 avril 2011, parMediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
The MediaSPIP player used has been created specifically for MediaSPIP and can be easily adapted to fit in with a specific theme.
For older browsers the Flowplayer flash fallback is used.
MediaSPIP allows for media playback on major mobile platforms with the above (...)
Sur d’autres sites (7602)
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Powerful Video Analytics and Audio Analytics for Piwik
10 novembre 2016, par InnoCraft — Plugins, Press ReleasesOver the years, one of the most frequently requested feature by users was to be able to measure how videos and audios are watched and engaged with on your website. We are finally able to announce that it is here ! We are very excited to launch Media Analytics, which will help you understand and grow your audience.
This article is a showcase of the new powerful video and audio analytics product built for Piwik.
Why media analytics ?
We all love media content such as videos as they can make our experiences on websites and apps so much more interesting. A growing number of websites now utilize media files in one form or another : a video presentation of a product or service, a video tutorial teaching you how to do something or interviews with key speakers. Also many creators and distributors are publishing audio files such as podcasts or music songs, and even broadcasting live video events such as music concerts or an entire conference online.
Whenever you publish videos or audio media on your websites or applications, Media Analytics provides you with clear insights on how your audience interacts with your content. It helps you see what content works and why – so you can better understand and further grow your business !
Valuable insights in Real time
See where your audience comes from.
How will Media Analytics help me grow ?
- Better understand your audience : who are the users playing videos and for how long, how often, and where have they dropped off.
- Gain quick insights into how interaction with your media changes over time with easy to use graphs and report overviews.
- Get closer to your users by seeing every action of your visitors before and after they utilized your media.
- View valuable insights in Real time : ‘most popular content right now’, your real time audience map, and more.
- See where your audience comes from. Drill down right from continents to specifics such as cities.
- Share and export media analytics reports with your colleagues by creating custom email reports.
- Video and audio players are supported either automatically (for Youtube, Vimeo, HTML5…) or via a simple custom player integration.
- No data limit and 100% privacy and data ownership.
Best of all, it is easy to use and understand, and integrates perfectly with Piwik. Media Analytics complements other reports to give you a 360 degree view of how your users engage with your content.
Learn more on the official website : www.media-analytics.net
How do I get Media Analytics ?
All premium plugins come with our 14 day money back guarantee and 1-click installation & updates. Customers get all product updates for free.
Media Analytics is available for purchase and download on the Marketplace.
If you are not using Piwik yet, you can also signup for a free trial of Piwik Cloud (including Media Analytics !).
Have a question about this product ? Get in touch.
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How to improve Desktop capture performance and quality with ffmpeg [closed]
6 novembre 2024, par Francesco BramatoI'm developing a game capture feature from my Electron app. I'm working on this since a while and tried a lot of different parameters combinations, now i'm running out of ideas :)


I've read tons of ffmpeg documentation, SO posts, other sites, but i'm not really a ffmpeg expert or video editing pro.


This is how it works now :


The app spawn an ffmpeg command based on user's settings :


- 

- Output format (mp4, mkv, avi)
- Framerate (12, 24, 30, 60)
- Codec (X264, NVidia NVENC, AMD AMF)
- Bitrate (from 1000 to 10000kpbs)
- Presets (for X264)
- Audio output (a dshow device like StereoMix or VB-Cable) and Audio input (a dshow device like the Microphone)
- Final Resolution (720p, 1080p, 2K, Original Size)
















The command executed, as far, is :


ffmpeg.exe -nostats -hide_banner -hwaccel cuda -hwaccel_output_format cuda -f gdigrab -draw_mouse 0 -framerate 60 -offset_x 0 -offset_y 0 -video_size 2560x1440 -i desktop -f dshow -i audio=@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{D61FA53D-FA37-4BE7-BE2F-4005F94790BB} -ar 44100 -colorspace bt709 -color_trc bt709 -color_primaries bt709 -c:v h264_nvenc -b:v 6000k -preset slow -rc cbr -profile:v high -g 60 -acodec aac -maxrate 6000k -bufsize 12000k -pix_fmt yuv420p -f mpegts -



one of the settings is the recording mode : full game session or replay buffer.
In case of full game session, the output is a file, for replay buffer is stdout.


The output format is mpegts because, as far i have read in a lot of places, the video stream can be cut in any moment.


Replays are cutted with different past and future duration based on game events.


In full game session, the replays are cutted directly from the mpegts.


In replay buffer mode, the ffmpeg stdout is redirect to the app that record the buffer (1 or 2 minutes), when the replay must be created, the app saves on the disk the buffer section according to past and future duration and with another ffmpeg command, copy it to a mp4 or mkv final file.


Generally speaking, this works reliably.


There are few issues :


- 

- nonetheless i ask ffmpeg to capture at 60fps, the final result is at 30fps (using
-r 60
will speed up the final result) - some user has reported FPS drops in-game, specially when using NVidia NVENC (and having a NVIDIA GPU), using X264 seems save some FPS
- colors are strange compared to original, what i see on screen, they seem washed out - i could have solved this using
-colorspace bt709 -color_trc bt709 -color_primaries bt709
but don't know if is the right choice - NVIDIA NVenc with any other preset that is not
slow
creates videos terribly laggy










here two examples, 60 FPS, NVIDIA NVENC (slow, 6000kbs, MP4


Recorded by my app : https://www.youtube.com/watch?v=Msm62IwHdlk


Recorded by OB with nearly same settings : https://youtu.be/WuHoLh26W7E


Hope someone can help me


Thanks !


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Fluent-FFmpeg Error : ffprobe exited with code 1
24 juin 2020, par Thiago CardosoI'm using a Lambda function to split a given file into pieces, and often I receive an error during the file processing :



{
 "errorType": "Error",
 "errorMessage": "ffprobe exited with code 1\nffprobe version 4.2.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2007-2019 the FFmpeg developers\n built with gcc 8 (Debian 8.3.0-6)\n configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg\n libavutil 56. 31.100 / 56. 31.100\n libavcodec 58. 54.100 / 58. 54.100\n libavformat 58. 29.100 / 58. 29.100\n libavdevice 58. 8.100 / 58. 8.100\n libavfilter 7. 57.100 / 7. 57.100\n libswscale 5. 5.100 / 5. 5.100\n libswresample 3. 5.100 / 3. 5.100\n libpostproc 55. 5.100 / 55. 5.100\n[mov,mp4,m4a,3gp,3g2,mj2 @ 0x6f35c40] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible!\n[mov,mp4,m4a,3gp,3g2,mj2 @ 0x6f35c40] moov atom not found\n/tmp/file.mp4: Invalid data found when processing input\n",
 "stack": [
 "Error: ffprobe exited with code 1",
 "ffprobe version 4.2.2-static https://johnvansickle.com/ffmpeg/ Copyright (c) 2007-2019 the FFmpeg developers",
 " built with gcc 8 (Debian 8.3.0-6)",
 " configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-libgme --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg",
 " 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",
 " libswscale 5. 5.100 / 5. 5.100",
 " libswresample 3. 5.100 / 3. 5.100",
 " libpostproc 55. 5.100 / 55. 5.100",
 "[mov,mp4,m4a,3gp,3g2,mj2 @ 0x6f35c40] Format mov,mp4,m4a,3gp,3g2,mj2 detected only with low score of 1, misdetection possible!",
 "[mov,mp4,m4a,3gp,3g2,mj2 @ 0x6f35c40] moov atom not found",
 "/tmp/file.mp4: Invalid data found when processing input",
 "",
 " at ChildProcess.<anonymous> (/var/task/node_modules/fluent-ffmpeg/lib/ffprobe.js:233:22)",
 " at ChildProcess.emit (events.js:198:13)",
 " at ChildProcess.EventEmitter.emit (domain.js:448:20)",
 " at Process.ChildProcess._handle.onexit (internal/child_process.js:248:12)"
 ]
}
</anonymous>



I see the error message, and what it is telling me, but what I cannot understand is that this very file works sometimes. Before the process starts I download the file from S3 into my Lambda container, maybe this is my problem, but still, this works sometimes.