Hydrogenaudio Forums > How to get bitrate for VBR MPEG-video files?

Full Version: How to get bitrate for VBR MPEG-video files?

Hydrogenaudio Forums > Digital Audio/Video > General A/V

getID3()

Nov 12 2003, 21:01

CBR MPEG has an entry for average bitrate, but for VBR it's set to 0x03FFFF. Do I assume that means I have to treat it like headerless VBR MP3 and just scan the whole file frame-by-frame to figure out the bitrate at all points in the file and calculate my own average? If so, how do I know how long an MPEG data frame is?

wkwai

Nov 22 2003, 03:00

Do you need to know the bitrates at the encoder side or at the decoder?

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