commit 422b9e098283bb9eece8689d580d11e78c9ebd66
author Gustaf Ullberg <gustaf@webrtc.org> Wed Oct 09 13:02:14 2019 +0200
committer Commit Bot <commit-bot@chromium.org> Wed Oct 09 12:09:06 2019 +0000
tree a4b950eca842ec809ec3f4ed7a89d9dd3bc00806
parent 1d3008bfc6fccc2ebde8a4b8b615254f9a445aed

Run fullband processing at output rate on ARM

The audio processing in the band-split domain on ARM platforms
operate at a sampling frequency of 32 kHz. This CL upsamples
the signal to fullband before the "fullband processing"
if an output rate of 48 kHz is chosen.

Change-Id: I268acd33aff1fcfa4f75ba8c0fb3e16abb9f74e8
Bug: b/130016532
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/155640
Commit-Queue: Gustaf Ullberg <gustaf@webrtc.org>
Reviewed-by: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#29415}

modules/audio_processing/audio_processing_impl.h

diff --git a/modules/audio_processing/audio_processing_impl.h b/modules/audio_processing/audio_processing_impl.h
index eb75362..c8e8c01 100644
--- a/modules/audio_processing/audio_processing_impl.h
+++ b/modules/audio_processing/audio_processing_impl.h
@@ -245,6 +245,10 @@
   void InitializeAnalyzer() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_capture_);
   void InitializePreProcessor() RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_render_);
 
+  // Sample rate used for the fullband processing.
+  int proc_fullband_sample_rate_hz() const
+      RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_capture_);
+
   // Empties and handles the respective RuntimeSetting queues.
   void HandleCaptureRuntimeSettings()
       RTC_EXCLUSIVE_LOCKS_REQUIRED(crit_capture_);
@@ -387,6 +391,7 @@
     bool key_pressed;
     bool transient_suppressor_enabled;
     std::unique_ptr<AudioBuffer> capture_audio;
+    std::unique_ptr<AudioBuffer> capture_fullband_audio;
     // Only the rate and samples fields of capture_processing_format_ are used
     // because the capture processing number of channels is mutable and is
     // tracked by the capture_audio_.