commit 84a0c6e87c48f58a0d3be71961432c086a4d24cc
author Andy Hung <hunga@google.com> Wed Apr 02 11:24:53 2014 -0700
committer Andy Hung <hunga@google.com> Wed Apr 02 14:33:26 2014 -0700
tree a9bea7e95223dc4d1f3219d4e60dd385881ec6d8
parent 99021c47f45ee8bf3317cff7d08226e76c8d8227

Change references of Q19.12 to Q4.27 for clarity

Change-Id: I5beb7daf6ff9bc123ff3582f7c294edcaf8652f6
Signed-off-by: Andy Hung <hunga@google.com>

services/audioflinger/test-resample.cpp

diff --git a/services/audioflinger/test-resample.cpp b/services/audioflinger/test-resample.cpp
index 3ab3ba9..7b7cdac 100644
--- a/services/audioflinger/test-resample.cpp
+++ b/services/audioflinger/test-resample.cpp
@@ -352,8 +352,9 @@
     size_t out_frames = output_size/8;
 
     /* set volume precision to 12 bits, so the volume scale is 1<<12.
-     * This means the "integer" part fits in the Q19.12 precision
-     * representation of output int32_t.
+     * The output int32_t is represented as Q4.27, with 4 bits of guard
+     * followed by the int16_t Q.15 portion, and then 12 trailing bits of
+     * additional precision.
      *
      * Generally 0 < volumePrecision <= 14 (due to the limits of
      * int16_t values for Volume). volumePrecision cannot be 0 due