I was wondering if there were plans to support subtitle selection from nvgstplayer (e.g., SRT from matroska).
Or else how to build a pipeline to playback hardware accelerated video, audio, and subtitle (all from a single matroska) from a specific position in the file.
So far I’ve found this: https://stackoverflow.com/questions/43756070/select-subtitle-track-that-embedded-on-mkv-using-gstreamer
The source code of nvgstplayer is at https://developer.nvidia.com/embedded/dlc/sources-r2821
The functionality of subtitle selection relies on 3rdparty gstreamer elements and we don’t have plan to add it into nvgstplayer. Other users may share experience to help you.
You can also get help from http://gstreamer-devel.966125.n4.nabble.com/