On 15-02-2019 10:49 AM, Srinidhi S wrote:
I am trying to use ffmpeg to create a video from images and add subtitles to
the video.
The following is the command that I am using
ffmpeg -f concat -i input.txt -i 02-38-2019-112729.m4a -vf
"scale=1280:720,subtitles=subtitles.srt" -pix_fmt yuv420p output.mp4
where input.txt is a text file in the following format
file 'IMG_0001.JPG'
duration 2
file 'IMG_0002.JPG'
duration 50
file 'IMG_0002.JPG'
and subtitles.srt is a subtitle file. I find that while the video is generated,
the subtitles are not present.
Can anyone point out what I am doing wrong?
Already pointed out in your Q at video stack exch
Frames must exist within the time intervals of the subtitles. You can
use the fps filter to generate a CFR stream before applying subtitles.
But to keep VFR, you'll need to create duplicate entries in your
textfile, with suitable duration values.
Gyan
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