Join images and audio to result video
audio, command, ffmpeg, join, video
Solution
FFMPEG version: 3.2.1-1
UBUNTU 16.04.1
Imagine, you have an mp3 audio file named wow.mp3 In that case, the following command will get the duration of the mp3 in seconds.
ffprobe -v error -show_entries format=duration -of default=noprint_wrappers=1:nokey=1 wow.mp3
Once you have the duration in seconds (imagine I got 11.36 seconds). Now since I have 3 images, I want to run each image for (11.36/3 = 3.79), then please use the following:
ffmpeg -y -framerate 1/3.79 -start_number 1 -i ./swissGenevaLake_%d.jpg -i ./akib.mp3 -c:v libx264 -r 25 -pix_fmt yuv420p -c:a aac -strict experimental -shortest output.mp4
Here the images are ./swissGenevaLake_1.jpg, ./swissGenevaLake_2.jpg , and ./swissGenevaLake_3.jpg.
-framerate 1/3.784 means, each image runs for 3.784 seconds.
-start_number 1 means, starts with image number one, meaning ./swissGenevaLake_1.jpg
-c:v libx264: video codec H.264
-r 25: output video framerate 25
-pix_fmt yuv420p: output video pixel format.
-c:a aac: encode the audio using aac
-shortest: end the video as soon as the audio is done.
output.mp4: output file name
Disclaimer: I have not tested merging images of multiple sizes.
References:
https://trac.ffmpeg.org/wiki/Create%20a%20video%20slideshow%20from%20images
https://trac.ffmpeg.org/wiki/Encode/AAC
http://trac.ffmpeg.org/wiki/FFprobeTips
Problem
I have a lot of images with different sizes (i.e. 1024x768 and 900x942) and an audio file (audio.mp3) of 30 seconds and I need to create a video from them. I'm trying it now with: result%d.png (1 to 4) and audio.mp3 ``` ffmpeg -y -i result%d.png -i audio.mp3 -r 30 -b 2500k -vframes 900 -acodec libvo_aacenc -ab 160k video.mp4 ``` The video video.mp4 has 30 seconds but the 3 first images is showed very quickly when the last image remains until the end of the audio. Each image needs to be showed in a equal time until the end of the audio. Anyone knows how to do it? The number of the images will vary sometimes.