Keep timestamps from original stream

[misiek08]

Hello!
I try to work on live streams and provide HA setup. Input is HLS/RTMP (currently HLS, because it's much easier for me).

Input config:

inputs:
  - name: https://host/hawe/test/playlist.m3u8
    media_type: video
    extra_input_args: -copyts

  - name: https://host/hawe/test/playlist.m3u8
    media_type: audio
    extra_input_args: -copyts

Pipeline config: pipeline_live_config.yaml

I've tried to add -copyts in multiple places in transcoder_node.py, it gets passed to ffmpeg, but does not work. I suspect timestamps get reset because of any of the other flags.

My goal is to run streamer on two different hosts with $Time$ in segment_template and be able to automatically failover between them. I already found, tried and have working synchronized keyframe cutting points, so that's no problem.

[misiek08]

I tried to directly run packager (without my keyframe synchronizing code applied) and ffmpeg, but resulting streams result in decode error while playing :( With shaka-streamer everything works good, so for now I'm trying to go easier way.

[misiek08]

Changing container to mpegts probably fixed one part of the issue (but caused new ones). Is it known problem with ffmpeg that it is ignoring copyts while outputting mp4 fragments?