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Commit Graph

4 Commits

Author SHA1 Message Date
Peter Ross
86e493a6ff avcodec: add Direct Stream Transfer (DST) decoder
Signed-off-by: Paul B Mahol <onemda@gmail.com>
2016-05-15 01:01:45 +02:00
Ganesh Ajjanagadde
b492fbcc6e lavc/dsd_tablegen: always generate tables at runtime
Commit b272c3a5aa has sped up dsd_tablegen, and now table generation takes
~ 40k cycles. Thus, these tables can always be generated at runtime.

Tested with/without --enable-hardcoded-tables.

Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-30 20:37:13 -08:00
Ganesh Ajjanagadde
b272c3a5aa lavc/dsd_tablegen: speed up table generation
Tables are bit identical.
Sample benchmark (Haswell, GNU/Linux+gcc):
old:
 814485 decicycles in dsd_ctables_tableinit,     512 runs,      0 skips

new:
 356808 decicycles in dsd_ctable_tableinit,     512 runs,      0 skips

Binary size should essentially be identical, and is in fact identical on
the configuration I tested on.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Ganesh Ajjanagadde <gajjanagadde@gmail.com>
2015-12-30 08:45:19 -08:00
Peter Ross
5f4f9ee99f Direct Stream Digital (DSD) decoder
Signed-off-by: Peter Ross <pross@xvid.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-04-15 20:35:57 +02:00