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      1 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "media/base/audio_hardware_config.h"
      6 #include "media/audio/audio_parameters.h"
      7 #include "testing/gtest/include/gtest/gtest.h"
      8 
      9 namespace media {
     10 
     11 static const int kOutputBufferSize = 2048;
     12 static const int kOutputSampleRate = 48000;
     13 static const ChannelLayout kOutputChannelLayout = CHANNEL_LAYOUT_STEREO;
     14 static const int kInputSampleRate = 44100;
     15 static const ChannelLayout kInputChannelLayout = CHANNEL_LAYOUT_STEREO;
     16 
     17 TEST(AudioHardwareConfig, Getters) {
     18   AudioParameters input_params(
     19       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     20       kInputChannelLayout,
     21       kInputSampleRate,
     22       16,
     23       kOutputBufferSize);
     24 
     25   AudioParameters output_params(
     26       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     27       kOutputChannelLayout,
     28       kOutputSampleRate,
     29       16,
     30       kOutputBufferSize);
     31 
     32   AudioHardwareConfig fake_config(input_params, output_params);
     33 
     34   EXPECT_EQ(kOutputBufferSize, fake_config.GetOutputBufferSize());
     35   EXPECT_EQ(kOutputSampleRate, fake_config.GetOutputSampleRate());
     36   EXPECT_EQ(kInputSampleRate, fake_config.GetInputSampleRate());
     37   EXPECT_EQ(kInputChannelLayout, fake_config.GetInputChannelLayout());
     38 }
     39 
     40 TEST(AudioHardwareConfig, Setters) {
     41   AudioParameters input_params(
     42       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     43       kInputChannelLayout,
     44       kInputSampleRate,
     45       16,
     46       kOutputBufferSize);
     47 
     48   AudioParameters output_params(
     49       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     50       kOutputChannelLayout,
     51       kOutputSampleRate,
     52       16,
     53       kOutputBufferSize);
     54 
     55   AudioHardwareConfig fake_config(input_params, output_params);
     56 
     57   // Verify output parameters.
     58   const int kNewOutputBufferSize = kOutputBufferSize * 2;
     59   const int kNewOutputSampleRate = kOutputSampleRate * 2;
     60   EXPECT_NE(kNewOutputBufferSize, fake_config.GetOutputBufferSize());
     61   EXPECT_NE(kNewOutputSampleRate, fake_config.GetOutputSampleRate());
     62 
     63   AudioParameters new_output_params(
     64       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     65       kOutputChannelLayout,
     66       kNewOutputSampleRate,
     67       16,
     68       kNewOutputBufferSize);
     69   fake_config.UpdateOutputConfig(new_output_params);
     70   EXPECT_EQ(kNewOutputBufferSize, fake_config.GetOutputBufferSize());
     71   EXPECT_EQ(kNewOutputSampleRate, fake_config.GetOutputSampleRate());
     72 
     73   // Verify input parameters.
     74   const int kNewInputSampleRate = kInputSampleRate * 2;
     75   const ChannelLayout kNewInputChannelLayout = CHANNEL_LAYOUT_MONO;
     76   EXPECT_NE(kNewInputSampleRate, fake_config.GetInputSampleRate());
     77   EXPECT_NE(kNewInputChannelLayout, fake_config.GetInputChannelLayout());
     78 
     79   AudioParameters new_input_params(
     80       AudioParameters::AUDIO_PCM_LOW_LATENCY,
     81       kNewInputChannelLayout,
     82       kNewInputSampleRate,
     83       16,
     84       kOutputBufferSize);
     85   fake_config.UpdateInputConfig(new_input_params);
     86   EXPECT_EQ(kNewInputSampleRate, fake_config.GetInputSampleRate());
     87   EXPECT_EQ(kNewInputChannelLayout, fake_config.GetInputChannelLayout());
     88 }
     89 
     90 }  // namespace content
     91