Video chunks not playable in chrome

[Tinnefeld, Carlo]

Hi GStreamer Team,
I have a question concerning "corrupted" files I get, when creating video chunks with splitmuxsink.

What I am doing:
The use case is event triggered recording into file chunks.
I am developing in a bullseye docker container with GStreamer 1.18.4, the target system is an arm64 SoC running a custom Linux build with yocto, currently using GStreamer 1.16.1 (The application is running in a container, where a custom docker base image is used to utilize the VPU of the SoC).
Pipeline (simplified):
rtspsrc -> rtph264depay -> tee -> queue -> valve -> h264parse -> splitmuxsink

The "issue":
I stumbled over the fact that the created file chunks from the target application sometimes where not playable in Google-Chrome browser. I investigated this behavior, because the same files not working in Chrome worked with FireFox, VLC and the standard Linux video player. I found out, that it might have to do something with "unfixable negative timestamp" (related chrome ticket: https://bugs.chromium.org/p/chromium/issues/detail?id=715398). The "corrupted" files can be fixed by re-packing them into new mp4 containers with e.g. ffmpeg (ffmpeg -i INPUT_FILE.mp4 -c:v copy OUTPUT_FILE.mp4). I have to admit, that the file chunks, recorded with GStreamer 1.18.4 in the dev environment, seem to not have the problem. I guess updating the target GStreamer version might fix the issue. Anyway, I wanted to ask if I am missing something, or is this know behavior for version 1.16.X and if this is the case, can fix the "corrupted" files in my application without changing the GStreamer version on the target.

Thank you very much in advance and best regards,
Carlo


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