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    Puis-je poster des contenus à partir d’une tablette Ipad ?
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    5 septembre 2013, par

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    MediaSPIP uses HTML5 video and audio tags to play multimedia files, taking advantage of the latest W3C innovations supported by modern browsers.
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Sur d’autres sites (11098)

  • Why Opencv image comparisson doesn't work ?

    6 mai 2018, par yash17

    We are using the following method for image comparison.

    1.Image is captured using ffmpeg,of udp streaming on vlc.

    2.A portion of an image is cropped,using y:y+h::x:x+w co-ordinates of the image.

    3.The cropped image is compared with a reference image using opencv2

    Previously we used to get image comparison results perfectly for these method and code,whereas from last couple of executions,the same code is not giving us proper results on extraction.It gives us same image result for even different images.

    from PIL import Image
    
import cv2
    
import os
    
import sys
    
import numpy as np
    
import time
    
import subprocess
    
from Keycode import send
    
p = subprocess.Popen("ffmpeg -y -i udp://@xxx.xx.xx.xx:xxxx -vframes 1     -q:v 1 sign.png",shell=True)
    
output = p.communicate()[0]
    

    
image1=cv2.imread('sign.png')
    
crop1= image1[451:491, 496:531]
    
i1 = cv2.imwrite('crop1.png',crop1)
    
i2 =cv2.imread('sign_ref.png')
    
difference = cv2.subtract(i1, i2)
    
result = not np.any(difference)

  • How to convert YUV422P image to JPEG using ffmpeg's libraries ?

    21 juillet 2017, par user3743908

    I’m trying to convert a YUV422 image (YUV422_8_UYVY, unsigned ,unpacked, 16bpp) in to jpeg using ffmpeg’s ,this is Code which i am following

    How to convert YUV420P image to JPEG using ffmpeg’s libraries ?

    Image size : 2448x2050
    Original YUV Image : not able to upload as the format is YUV

    (Original Image Decodec by ffmpeg command prompt)
    Image :This is original Image

    Image size : 2448x2050
    reconstruct Image :Reconstruct Image through above Code

    so the reconstruct image is not as the original image

    my format is UYVY whereas supported format is AV_PIX_FMT_YUVJ420P

    so what should be the correct format for UYVY input image...?

  • FFMPEG - Combining one image and one audio together

    8 avril 2017, par B Hok
    @echo off
    
for %%a in (*.mp3) DO ffmpeg -i "%%a" -f image2 -loop 1 -r 30 -i image.jpg -shortest -c:a copy -c:v libx264 -crf 23 -preset veryfast -vf scale=1280:720 "%%a.mp4"
    
pause

    I have this batch code here, however it doesn’t output correctly. The mp3 is successfully converted to a mp4, though the image is not merging with the audio.

    I have the audio and the jpg called image.jpg in the folder together.

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