Steven
2004.06.25, 06:40 PM
I'm looking at QuickTime data, and it seems that codec-specific parameters are stored in the 'cdec' atom. I'm trying to set the bitrate for codecs that support it, such as AAC and MP3. This is what I have - a hexdump of it:
Atom 'cdec' (5) is 000c66726d616d703461000c6d703461000000033657364730 0003ffffff80ffffff80ffffff80220004ffffff80ffffff80 ffffff80144015018002710027105ffffff80ffffff80fffff f80212106ffffff80ffffff80ffffff8012000c73726371000 600008000000000000
Where should I start with this? Or is there an easier way to set the bitrate? (I already have sample rate and sample size and such figured out, but the bitrate doesn't seem to go with them.)
Atom 'cdec' (5) is 000c66726d616d703461000c6d703461000000033657364730 0003ffffff80ffffff80ffffff80220004ffffff80ffffff80 ffffff80144015018002710027105ffffff80ffffff80fffff f80212106ffffff80ffffff80ffffff8012000c73726371000 600008000000000000
Where should I start with this? Or is there an easier way to set the bitrate? (I already have sample rate and sample size and such figured out, but the bitrate doesn't seem to go with them.)