avsync-lib: support underflow detection [3/3]

PD#TV-45115

Problem:
New feature requirment for vsink

Solution:
added underflow detection call back

Verify:
T5D + Roxton + NTS

Change-Id: I9fa3fe9e6b5a942221415b03fd29aff9d02236fa
Signed-off-by: yongchun.li <yongchun.li@amlogic.com>
2 files changed
tree: c3f3846ca0e77f4eb95718021ef3a92fe342306f
  1. src/
  2. avsync-lib.mk
  3. Config.in
  4. Makefile