Tbr.mp4 Here

: The time base provided by the MP4 container itself.

If a video has a , it can cause playback issues such as freezing, jittery motion, or "non-monotonous DTS" warnings during editing or conversion. TBR.mp4

The technical acronym stands for Time Base Rate (or r_frame_rate in technical documentation). It is most commonly encountered as a metadata value when using media tools like FFmpeg to analyze or convert .mp4 video files. Understanding TBR in MP4 Files : The time base provided by the MP4 container itself