17e40641b3
This is mainly to support the native audio format in Chrome. Although this implementation just moves the float->int conversion under the hood, we will transition AudioProcessing towards supporting this format throughout. - Add a test which verifies we get identical output with the float and int interfaces. - The float and int wrappers are tasked with conversion to the AudioBuffer format. A new shared Process/Analyze method does most of the work. - Add a new field to the debug.proto to hold deinterleaved data. - Add helpers to audio_utils.cc, and start using numeric_limits. - Note that there was no performance difference between numeric_limits and a literal value when measured on Linux using gcc or clang. BUG=2894 R=aluebs@webrtc.org, bjornv@webrtc.org, henrikg@webrtc.org, tommi@webrtc.org, turaj@webrtc.org, xians@webrtc.org Review URL: https://webrtc-codereview.appspot.com/9179004 git-svn-id: http://webrtc.googlecode.com/svn/trunk@5641 4adac7df-926f-26a2-2b94-8c16560cd09d
53 lines
1.3 KiB
Protocol Buffer
53 lines
1.3 KiB
Protocol Buffer
syntax = "proto2";
|
|
option optimize_for = LITE_RUNTIME;
|
|
package webrtc.audioproc;
|
|
|
|
message Init {
|
|
optional int32 sample_rate = 1;
|
|
optional int32 device_sample_rate = 2;
|
|
optional int32 num_input_channels = 3;
|
|
optional int32 num_output_channels = 4;
|
|
optional int32 num_reverse_channels = 5;
|
|
}
|
|
|
|
// May contain interleaved or deinterleaved data, but don't store both formats.
|
|
message ReverseStream {
|
|
// int16 interleaved data.
|
|
optional bytes data = 1;
|
|
|
|
// float deinterleaved data, where each repeated element points to a single
|
|
// channel buffer of data.
|
|
repeated bytes channel = 2;
|
|
}
|
|
|
|
// May contain interleaved or deinterleaved data, but don't store both formats.
|
|
message Stream {
|
|
// int16 interleaved data.
|
|
optional bytes input_data = 1;
|
|
optional bytes output_data = 2;
|
|
|
|
optional int32 delay = 3;
|
|
optional sint32 drift = 4;
|
|
optional int32 level = 5;
|
|
optional bool keypress = 6;
|
|
|
|
// float deinterleaved data, where each repeated element points to a single
|
|
// channel buffer of data.
|
|
repeated bytes input_channel = 7;
|
|
repeated bytes output_channel = 8;
|
|
}
|
|
|
|
message Event {
|
|
enum Type {
|
|
INIT = 0;
|
|
REVERSE_STREAM = 1;
|
|
STREAM = 2;
|
|
}
|
|
|
|
required Type type = 1;
|
|
|
|
optional Init init = 2;
|
|
optional ReverseStream reverse_stream = 3;
|
|
optional Stream stream = 4;
|
|
}
|