How join 2 m3u8 videos?

[cx430]

Hello friends I have a problem, I need to join two videos while I download them, I can download them without problems with the following code ffmpeg -i urlm3u8 here -c copy -bsf: a aac_adtstoasc output.mp4 but there are videos that are in 2 parts and I would like to join them while I downloaded them, try with the following code but it did not work ffmpeg -i url1 -i url2 -c copy -bsf: a aac_adtstoasc output.mp4

[poisondeathray]

Hello friends I have a problem, I need to join two videos while I download them, I can download them without problems with the following code ffmpeg -i urlm3u8 here -c copy -bsf: a aac_adtstoasc output.mp4 but there are videos that are in 2 parts and I would like to join them while I downloaded them, try with the following code but it did not work ffmpeg -i url1 -i url2 -c copy -bsf: a aac_adtstoasc output.mp4

You can't. You have to download and concatenate afterwards

Think about it - the end of the 1st is concatenated to the beginning of the 2nd. But you haven't downloaded end of the 1st video ; you start downloading with the beginning

[jagabo]

I think you can use the concat option with a list file:

https://trac.ffmpeg.org/wiki/Concatenate

That will download sequentially, not simultaneously, but the second file should be concatenated onto the first.

<edit>
Maybe not. It didn't work when I tried it.

You might be able to build your own concatenated m3u8 file. But that's probably more work than just downloading them individually and concatenating them.
</edit>

[jagabo]

I was able to get it to work with this ffmpeg command line:

ffmpeg.exe -y -safe 0 -protocol_whitelist "file,http,https,tcp,tls,hls,concat" -f concat -i list.m3u8.txt -c copy output.mp4

and a list.m3u8.txt file that looks like:

file 'http://ga.video.cdn.pbs.org/videos/nature/e1a35d94-fd17-4615-99c3-f22db7f5cc41/123507/hd-mezzanine-16x9/naat-mybionicpet-0516x9-16x9-hls-64-800k.m3u8'
file 'http://ga.video.cdn.pbs.org/videos/nature/e1a35d94-fd17-4615-99c3-f22db7f5cc41/123507/hd-mezzanine-16x9/naat-mybionicpet-0516x9-16x9-hls-64-800k.m3u8'

I didn't have links to two m3u8 files so I used the same one twice.

[cx430]

hi jagabo thanks for you help bro but i have this error failed to open segment of playlist 0 and the final show this error list.m3u8 invalid data found when prossesing input

[jagabo]

Does the exact list I use work for you? Did you verify that you can download each video individually? Can you give links to the m3u8 files you're trying to download/concat?