Tbr.mp4

: The time base provided by the MP4 container itself.

When looking at an MP4 file's stream data, you will often see TBR alongside two other "time base" metrics: TBR.mp4

Errors in FFmpeg metadata can sometimes cause the TBR to display an incorrect value like "100" or "2200," which may lead to software like YouTube's encoder misreading the file speed. Related Technical Terms : The time base provided by the MP4 container itself

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 TBR.mp4

: The fundamental unit of time used by the specific codec (like H.264) inside the file.