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Autres articles (44)
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L’espace de configuration de MediaSPIP
29 novembre 2010, parL’espace de configuration de MediaSPIP est réservé aux administrateurs. Un lien de menu "administrer" est généralement affiché en haut de la page [1].
Il permet de configurer finement votre site.
La navigation de cet espace de configuration est divisé en trois parties : la configuration générale du site qui permet notamment de modifier : les informations principales concernant le site (...) -
Support audio et vidéo HTML5
10 avril 2011MediaSPIP utilise les balises HTML5 video et audio pour la lecture de documents multimedia en profitant des dernières innovations du W3C supportées par les navigateurs modernes.
Pour les navigateurs plus anciens, le lecteur flash Flowplayer est utilisé.
Le lecteur HTML5 utilisé a été spécifiquement créé pour MediaSPIP : il est complètement modifiable graphiquement pour correspondre à un thème choisi.
Ces technologies permettent de distribuer vidéo et son à la fois sur des ordinateurs conventionnels (...) -
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 (5923)
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FFMPEG Batch script for windows to remove first 13 seconds and last 6 seconds
4 août 2020, par KeinushiSo I've been working at this the last 2 days trolling articles on here with many only getting me halfway to my answer. I have around 200 videos that all need to be batch converted. I only have windows at my perusal. I have successfully removed the first 13 seconds no problem. But the last 6 need to be removed from each file. My Latest iteration is :


for %%a in ("*.mp4") do set /a dur=(ffprobe -i "%%a" -show_entries format=duration -v quiet -of csv="p=0") set /a trim=(dur-6 -sexagesimal) ffmpeg -t trim -i "%%a" "output\%%~na.mp4"



However when I run this I get "Unbalanced parenthesis." error. Full readout below :


C:\Users\Me\Desktop\FFMPEG Test Folder>set /a dur=(ffprobe -i "test.mp4" -show_entries format=duration -v quiet -of csv="p=0") set /a trim=(dur-6 -sexagesimal) ffmpeg -t trim -i "test.mp4" "output\test.mp4"
Unbalanced parenthesis.



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ffmpg overlay command not working properly
17 décembre 2015, par user3269550i am using ffmpegib.so version 1.2 for executing commands in android i am using standard command for overlaying gif on video my command is
ffmpeg -y -i /sdcard/vid.mp4 -ignore_loop 0 -i /sdcard/gif2.gif -strict -2 -filter_complex '[0:v][1:v]overlay=10:10:shortest=1' -codec:a copy /sdcard/out.mp4
this is standard command for overlaying gif on video but says ignore-loop option not found
so i have tried another commandffmpeg -y -i /sdcard/vid.mp4 -i /sdcard/gif2.gif -strict -2 -filter_complex 'overlay=10:10' -codec:a copy /sdcard/out.mp4
this command works but it loops gif only once i wand gif to loops untill video finishes please suggest me solution
i hae only version of ffmpeg is 1.2 because i could not able to build its latest version after 5 days of hard work -
How to configure B-frames (no leading P-frames) in x265
5 mars 2020, par AlearnerI have been rolling around with my studies in x265 encoder for days. Guess now I get better click on how x265 works than my first day. I usually use the HEVC reference software, and so think I am too comfortable with its environment because now I cannot figure out how to set the x265 encoder to code only I- and B-frames as if the Random Access or Low-Delay-B configurations in HEVC.
I set my encoder with this CLI option to encode 500 frames of BasketballPass sequence :
--input BasketballPass_416x240_50.yuv --input-res 416x240 --fps 50 --frames 500 --rd 4 --no-lossless --csv-log-level 2 --csv infoQP37.csv --no-wpp --psnr --ssim -b 16 --b-pyramid 0 --b-adapt 0 --keyint 48
Instead of get only I- and B-frames encoded, P-frames also show up in my log file :
Enc.order Type POC
0 I-SLICE 0
**1 P-SLICE 17**
2 B-SLICE 9
3 b-SLICE 1
4 b-SLICE 2
5 b-SLICE 3
6 b-SLICE 4
7 b-SLICE 5
8 b-SLICE 6
9 b-SLICE 7
10 b-SLICE 8
11 b-SLICE 10
12 b-SLICE 11
13 b-SLICE 12
14 b-SLICE 13
15 b-SLICE 14
16 b-SLICE 15
17 b-SLICE 16
**18 P-SLICE 34**
19 B-SLICE 26
20 b-SLICE 18
21 b-SLICE 19
22 b-SLICE 20
23 b-SLICE 21
24 b-SLICE 22
25 b-SLICE 23
26 b-SLICE 24
27 b-SLICE 25
28 b-SLICE 27
29 b-SLICE 28
30 b-SLICE 29
31 b-SLICE 30
32 b-SLICE 31
33 b-SLICE 32
34 b-SLICE 33
35 i-SLICE 48
......My question is, can the x265 configure encoder as in RA or LDB of HEVC ? If yes, I’d appreciate any guidance to do it. Or How can we encode only I- and B-frame only (without P-frame) in x265 ?