I don't understand, when in ffmpeg i do ffmpeg -i <input>
i have :
Video: hevc (Main) (hev1 / 0x31766568), yuv420p(tv), 1920x1080, 4997 kb/s, 30 fps, 30 tbr, 998795.00 tbn, 30 tbc (default)
it's show bitrate: 4997 kb/s BUT the size of the file is 114915563 bytes for a duration of 179 secondes. when i do math i have 114915563 / 179 = 641986 bytes/s = 642 kb/s :(
What did i miss ? how to retrieve the average bitrate of a movie and the peak bitrate of a movie ?