e029d99f19
A multiplication result doesn't fit in an int32_t type. This change rewrites the code to avoid the overflowing multiplication. Here y[0], y[1] are int16 numbers containing the (truncated) topmost 18 and (scaled Q2 to use the full int16) the least significant 13 bits of a 32-bit value. The change makes y[1] to be calculated directly instead of using y[0] as an intermediate value. TESTED=this change passes the bit exactness tests, and has also been running on the audio_processing fuzzer with a CHECK comparing the old and new value. Bug: chromium:747202 Change-Id: Iafc69eb7391d494afdadf65f5b7f399a57bbe9a8 Reviewed-on: https://chromium-review.googlesource.com/580907 Reviewed-by: Minyue Li <minyue@webrtc.org> Commit-Queue: Alex Loiko <aleloi@webrtc.org> Cr-Commit-Position: refs/heads/master@{#19120}
Name: WebRTC URL: http://www.webrtc.org Version: 90 License: BSD License File: LICENSE Description: WebRTC provides real time voice and video processing functionality to enable the implementation of PeerConnection/MediaStream. Third party code used in this project is described in the file LICENSE_THIRD_PARTY.