#35 2-pass AAC encoding

closed
nobody
None
5
2014-08-14
2008-01-24
LRN
No

"--pass <1|2>"
enables 2-pass rate control
1 - first pass (creates stat-file)
2 - second pass (uses stat-file to adjust bitrate)

"--stats <path>"
filename of stat-file to readfrom/writeto (depends on "--pass")

Goal: improve bitrate distribution (improves quality) AND improve output file size precision: output file size should not exceed <bitrate>*<length(seconds)>/8 bytes (where <bitrate> is from "-b" option). AAC header(s) and mp4 container size should be taken in account.

Discussion

  • LRN
    LRN
    2008-01-24

    Logged In: YES
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    Originator: YES

    Sorry. Could you remove duplicate entries, please?

     
  • menno
    menno
    2009-02-03

    • status: open --> closed