Add aecdump support to audioproc_f.

webrtc/modules/audio_processing/test/test_utils.h

Index: webrtc/modules/audio_processing/test/test_utils.h
diff --git a/webrtc/modules/audio_processing/test/test_utils.h b/webrtc/modules/audio_processing/test/test_utils.h
index 8dd380b15da3f131b91e7548bc12961a1470efbd..8995d0a63fdae37e00db6df3a61a5c96bcf0d10f 100644
--- a/webrtc/modules/audio_processing/test/test_utils.h
+++ b/webrtc/modules/audio_processing/test/test_utils.h
@@ -43,6 +43,19 @@ class RawFile final {
   RTC_DISALLOW_COPY_AND_ASSIGN(RawFile);
 };
 
+// Writes ChannelBuffers to a provided WavWriter.
+class ChannelBufferWavWriter final {
+ public:
+  explicit ChannelBufferWavWriter(rtc::scoped_ptr<WavWriter> file);

[aluebs-webrtc, 2015/10/24 00:53:35]

Why does this needs to be passed in? Can't we just pass in the file name and let
ChannelBufferWavWriter create its own WavWriter? It could even create it lazily
and take the sample rate and number of channels from the ChannelBuffer.

[aluebs-webrtc, 2015/10/29 01:03:20]

Missed this comment? I have the same question regarding the
ChannelBufferWavReader.

[Andrew MacDonald, 2015/10/29 01:14:33]

I'm currently using this in a very specific context where we already have a
WavWriter object, not a file name. If someone wanted CBWW/CBWR to take a file
name in the future, that would be fine; just overload the constructor.

[aluebs-webrtc, 2015/10/30 01:26:59]

Sounds reasonable. Agreed.

+  void Write(const ChannelBuffer<float>& buffer);
+
+ private:
+  rtc::scoped_ptr<WavWriter> file_;
+  std::vector<float> interleaved_;
+
+  RTC_DISALLOW_COPY_AND_ASSIGN(ChannelBufferWavWriter);
+};
+
 void WriteIntData(const int16_t* data,
                   size_t length,
                   WavWriter* wav_file,
@@ -118,6 +131,9 @@ std::vector<T> ParseList(const std::string& to_parse) {
 std::vector<Point> ParseArrayGeometry(const std::string& mic_positions,
                                       size_t num_mics);
 
+// Same as above, but without the num_mics check for when it isn't available.
+std::vector<Point> ParseArrayGeometry(const std::string& mic_positions);
+
 }  // namespace webrtc
 
 #endif  // WEBRTC_MODULES_AUDIO_PROCESSING_TEST_TEST_UTILS_H_