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Autres articles (60)
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Personnaliser en ajoutant son logo, sa bannière ou son image de fond
5 septembre 2013, parCertains thèmes prennent en compte trois éléments de personnalisation : l’ajout d’un logo ; l’ajout d’une bannière l’ajout d’une image de fond ;
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Use, discuss, criticize
13 avril 2011, parTalk to people directly involved in MediaSPIP’s development, or to people around you who could use MediaSPIP to share, enhance or develop their creative projects.
The bigger the community, the more MediaSPIP’s potential will be explored and the faster the software will evolve.
A discussion list is available for all exchanges between users. -
MediaSPIP v0.2
21 juin 2013, parMediaSPIP 0.2 est la première version de MediaSPIP stable.
Sa date de sortie officielle est le 21 juin 2013 et est annoncée ici.
Le fichier zip ici présent contient uniquement les sources de MediaSPIP en version standalone.
Comme pour la version précédente, il est nécessaire d’installer manuellement l’ensemble des dépendances logicielles sur le serveur.
Si vous souhaitez utiliser cette archive pour une installation en mode ferme, il vous faudra également procéder à d’autres modifications (...)
Sur d’autres sites (11001)
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Python asyncio subprocess code returns "pipe closed by peer or os.write(pipe, data) raised exception."
4 novembre 2022, par Duke DougalI am trying to convert a synchronous Python process to asyncio. Any ideas what I am doing wrong ?


This is the synchronous code which successfully starts ffmpeg and converts a directory of webp files into a video.


import subprocess
import shlex
from os import listdir
from os.path import isfile, join

output_filename = 'output.mp4'
process = subprocess.Popen(shlex.split(f'ffmpeg -y -framerate 60 -i pipe: -vcodec libx265 -pix_fmt yuv420p -crf 24 output.mp4'), stdin=subprocess.PIPE)

thepath = '/home/ubuntu/webpfiles/'
thefiles = [f for f in listdir(thepath) if isfile(join(thepath, f))]
for filename in thefiles:
 absolute_path = f'{thepath}{filename}'
 with open(absolute_path, 'rb') as f:
 process.stdin.write(f.read())

process.stdin.close()
process.wait()
process.terminate()



This async code fails :


from os import listdir
from os.path import isfile, join
import shlex
import asyncio

outputfilename = 'output.mp4'

async def write_stdin(proc):
 thepath = '/home/ubuntu/webpfiles/'
 thefiles = [f for f in listdir(thepath) if isfile(join(thepath, f))]
 thefiles.sort()
 for filename in thefiles:
 absolute_path = f'{thepath}{filename}'
 with open(absolute_path, 'rb') as f:
 await proc.communicate(input=f.read())

async def create_ffmpeg_subprocess():
 bin = f'/home/ubuntu/bin/ffmpeg'
 params = f'-y -framerate 60 -i pipe: -vcodec libx265 -pix_fmt yuv420p -crf 24 {outputfilename}'
 proc = await asyncio.create_subprocess_exec(
 bin,
 *shlex.split(params),
 stdin=asyncio.subprocess.PIPE,
 stdout=asyncio.subprocess.PIPE,
 stderr=asyncio.subprocess.PIPE,
 )
 return proc

async def start():
 loop = asyncio.get_event_loop()
 proc = await create_ffmpeg_subprocess()
 task_stdout = loop.create_task(write_stdin(proc))
 await asyncio.gather(task_stdout)

if __name__ == '__main__':
 asyncio.run(start())



The output for the async code is :


pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.
pipe closed by peer or os.write(pipe, data) raised exception.



etc - one line for each webp file


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The Method of Making Video Special Effect
19 janvier 2019, par szhanI’ve been trying to use javacv libraries to make video effects.
like this screenshotI’m trying to use ffmpeg’s watermarking method to cover the head. But I don’t know how to control the transparency and shape of the watermarking.
watermark = "movie=./girl.png[watermark];[in][watermark]overlay=W-w-300:10:format=rgb[out]";
FFmpegFrameFilter frameFilter = new FFmpegFrameFilter(watermark, width, height); -
V2.96a.20100624 : Safari 5 HTML5 audio still broken in (only) Snow Leopard. Lame. Falls back to Flash now, same as Safari 4.x on Snow Leopard. Allow override for this check via "sm2-ignorebadua" in URL. SWFs now include version info in Flash right-click (context) menu, helpful for testing/troubleshooting.
24 juin 2010, par Scott Schillerm script/soundmanager2-jsmin.js m script/soundmanager2-nodebug-jsmin.js m script/soundmanager2.js V2.96a.20100624 : Safari 5 HTML5 audio still broken in (only) Snow Leopard. Lame. Falls back to Flash now, same as Safari 4.x on Snow Leopard. Allow override for this check via "sm2-ignorebadua" in (...)