write to MP4

[cedricve]

It's referenced that go-mp4 is being used, and I'm currently trying out to use gortsplib to read a stream (this works) and dump the h264 payload into a mp4 container. I'm struggling a bit setting up the MP4 header and trailer. Do you have any guidance @aler9 ?

[cedricve]

Found this example (https://github.com/bluenviron/gortsplib/blob/main/examples/client-read-format-h264-save-to-disk/mpegtsmuxer.go), but curious to see how that would work for mp4.

[aler9]

Hello, go-mp4 is used in gohlslib to generate fragmented MP4s for HLS, code is here:
https://github.com/bluenviron/gohlslib/blob/main/muxer_segmenter_fmp4.go

I'd like not to include MP4-related utilities or MPEG-TS-related utilities into this library, in order to keep it lightweight and minimize maintenance efforts. There are other projects that provide such utilities. I know that putting everything together could be a little difficult, but it's a design choice.

[cedricve]

thanks for the comment, yes I agree. That link is already a good starting point. I know integrating that in the core library doesn't make sense, I was more or less interested in some examples. Not sure if we need a "playground" repo for that.

[cedricve]

I'm currently using this library for writing MP4s. Very nice SDK to integrate.
https://github.com/yapingcat/gomedia