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EchoCancellationImpl::ProcessRenderAudio: Use float samples directly

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This patch lets EchoCancellationImpl::ProcessRenderAudio ask the given
AudioBuffer for float sample data directly, instead of asking for
int16 samples and then converting manually.

Since EchoCancellationImpl::ProcessRenderAudio takes a const
AudioBuffer*, it was necessary to add some const accessors for float
data to AudioBuffer.

R=aluebs@webrtc.org, andrew@webrtc.org, bjornv@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/14749004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6590 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
kwiberg@webrtc.org
2014-07-03 09:47:33 +00:00
parent a82f9a243d
commit 38214d53db
8 changed files with 54 additions and 51 deletions
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3
webrtc/modules/audio_processing/audio_buffer.h
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@ -69,8 +69,11 @@ class AudioBuffer {
// Float versions of the accessors, with automatic conversion back and forth
// as necessary. The range of the numbers are the same as for int16_t.
float* data_f(int channel);
const float* data_f(int channel) const;
float* low_pass_split_data_f(int channel);
const float* low_pass_split_data_f(int channel) const;
float* high_pass_split_data_f(int channel);
const float* high_pass_split_data_f(int channel) const;
const float* keyboard_data() const;