[media] tw686x: use a formula instead of two tables for div

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Instead of using two tables to estimate the temporal decimation
factor, use a formula. This allows to get the closest fps, which
sounds better than the current tables.

Also, the current code doesn't store the real framerate.

This patch fixes the above issues.

[Ezequiel:
  - introduce a TW686X_MAX_FPS macro for max_fps.
  - use hweight_long instead of open coding the set bits count.]

Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

...

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Mauro Carvalho Chehab 2016-06-28 23:17:34 -03:00 • committed by Mauro Carvalho Chehab

parent f91e5c0c5f

commit fb66852d4c

1 changed files with 61 additions and 34 deletions

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drivers/media/pci/tw686x/tw686x-video.c

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