[Problème] how to create a video by image and mp3

hello
How tô create several vidéos (one image and one file mp3) automatic way:
by folder image and folder mp3


thanks

 

The problem will be more to match the mp3 file with the correct picture.
for this you could number all files so picture1.jpg witll go with music1.mp3 and so on...
you can also create the pair in an excel file and export as text for input.
If you already get a folder for each pair you would just parse for the list.
Instructions for file management are pretty limited in avisynth, so vbscript could be useful here.
you can use programs like avisynth that can be scripted.
-Open the audio file, get length
audio=DirectShowSource("d:\myfile.mp3")
- Read the picture and transform it into a video with lenght of audio file
video = ImageSource("mypicture.jpg", fps=25, start=1, end=ceil(25*AudioLengthF(audio)/AudioRate(audio)))
-merge audio +video
return AudioDub(video, audio)
(you could set the fps to 1, so the video will be highly compressed)
then finally save clip to a file, with a specific resolution and codec.SYNTH dos not directly produce video file, you need to pass the .avs script to an encoder like x264.
it would use a command like this.
x264 example.avs -o example.mp4 --rest_of_x264_options

or any other program that accept command line with avs script.
check avs2avi (www.avs2avi.org).

You can find some info here
tutorial:create_video_from_still_image_and_from_audio_file [Avidemux]