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    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
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Sur d’autres sites (12128)

  • Audio not working with FFMPEG conversion

    17 juillet 2017, par mikelbring

    I am trying to convert an avi file to flv with an fairly simple ffmpeg command :

    ffmpeg -i dbkai12.avi -ab 96k -b 700k -ar 44100 -s 640x480 -acodec mp3 video.flv

    The video does exactly what I want, just no audio. I didnt come up with these numbers, just pulled them from different sources.

    Also tried :

    ffmpeg -i video.avi -ar 22050 -ab 32 -f flv -s 320x240 video.flv

    Same result.

  • ffmpeg working on command line only, not with php

    23 août 2017, par Harish Kumar

    I am using FFmpeg https://github.com/olaferlandsen/ffmpeg-php-class. But when i am running code it is not working. Please help me to solve this issue if anyone know. Below is the code

    $FFmpeg = new FFmpeg( "/etc/bin/ffmpeg" );
    
$FFmpeg->input( '/opt/lampp/htdocs/ffmpeg/1.wav' )->output( '/opt/lampp/htdocs/ffmpeg/ss.mp3' );
    
$FFmpeg->ready();

  • setting bit rates in creating video from images in ffmpeg not working

    2 mai 2014, par mast kalandar

    I have a HQ video of one second

    Some information of this video is as below

    Dimensions : 1920 x 1080    
    
Codec : H.264    
    
Framerate : 30 frames per second    
    
Size : 684.7 kB (6,84,673 bytes)
    
Bitrates : 5458 kbps

    I have extracted frames from video

    ffmpeg -i f1.mp4 f%d.jpg

    All images are of 1920 x 1020 pixels by default 30 frames are generated (f7_1.jpg, f7_2.jpg,.....,f7_30.jpg)

    I have added some texts and objects to these images (without changing dimensions of any image, all 30 images are still of 1920 x 1020 pixels)

    Now I am trying to merge all these images to create single video (of 1 second)

    I referred this official document, I have run below command

    ffmpeg -f image2 -i f7_%d.jpg -r 30 -b:v 5458k foo_5458_2.mp4

    Video created is also of one second, thing is its bit rates are higher then the original one. New video has 6091 kbps bit rates, while I expect are 5458 kbps only.

    Because of higher bits, its gets finish very quickly compare to original video in video player.

    Is there any thing I missing ??

    And I don’t know what is exact meaning and job of -f image2 option, when I run command without this option, I am getting same video.

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