ffmpeg to create MP4

[Rayj00]

Ok, I am experimenting a little. I created a m3u8 file along with a few .ts files from an RTMP stream (OBS).

How can I use ffmpeg to create an MP4 out of them?

Thanks,

Ray

[Case]

ffmpeg selects the decoder on its own, so any supported input file is basically the same. You would only specify the output parameters.
use defaults
ffmpeg -i input.m3u8 output.mp4
or specify much
ffmpeg -i input.m3u8 -c:v libx264 -preset medium -crf 18 -vf format=yuv420p -c:a aac -b:a 160k -movflags +faststart output.mp4
or copy streams as-is
ffmpeg -i input.m3u8 -c copy output.mp4

if it breaks, then try in two steps, via MKV:
ffmpeg -i input.m3u8 -c copy output.mkv
ffmpeg -i input.mkv -c copy output.mp4

[Rayj00]

Thank you for the reply. Working great!

Ray

[Rayj00]

One other question. When I create a video using my samsung S8 and the ManyCam app, when I turn the phone side ways, the video on screen follows, but the subsequent mp4 does not? So basically portrait works in the mp4 but landscape does not?

Ray

[Case]

ffmpeg -i intermediate.mp4 -vf "transpose=dir=clock" -c:a copy output2.mp4

where
"transpose=dir=cclock_flip" = 90°CounterCLockwise and Vertical Flip (default)
"transpose=dir=clock" = 90°Clockwise
"transpose=dir=cclock" = 90°CounterClockwise
"transpose=dir=clock_flip" = 90°Clockwise and Vertical Flip
"transpose=dir=clock,transpose=dir=clock" = 180°

In automated situations, it is possible to make exceptions for either landscape or portrait. transpose=dir=clock:passthrough=portrait

[rayjVideo]

ffmpeg -i intermediate.mp4 -vf "transpose=dir=clock" -c:a copy output2.mp4

where
"transpose=dir=cclock_flip" = 90°CounterCLockwise and Vertical Flip (default)
"transpose=dir=clock" = 90°Clockwise
"transpose=dir=cclock" = 90°CounterClockwise
"transpose=dir=clock_flip" = 90°Clockwise and Vertical Flip
"transpose=dir=clock,transpose=dir=clock" = 180°

In automated situations, it is possible to make exceptions for either landscape or portrait. transpose=dir=clockassthrough=portrait

So does this compensate for portrait and landscape in the same video? So if part of the video is portrait but then it flips to landscape and you have have to tilt your head to watch it, does it turn it?

[Case]

So does this compensate for portrait and landscape in the same video? So if part of the video is portrait but then it flips to landscape and you have have to tilt your head to watch it, does it turn it?

No. The whole clip is treated the same as the first frame.