diff options
Diffstat (limited to 'services/audioflinger/test-resample.cpp')
| -rw-r--r-- | services/audioflinger/test-resample.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
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 @@ int main(int argc, char* argv[]) { 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 |