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comparison: content/media/gtest/TestTrackEncoder.cpp
content/media/gtest/TestTrackEncoder.cpp
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
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| -1:000000000000 | 0:724da10ac184 |
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| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "gtest/gtest.h" | |
| 7 #include "OpusTrackEncoder.h" | |
| 8 | |
| 9 using namespace mozilla; | |
| 10 | |
| 11 class TestOpusTrackEncoder : public OpusTrackEncoder | |
| 12 { | |
| 13 public: | |
| 14 // Return true if it has successfully initialized the Opus encoder. | |
| 15 bool TestOpusCreation(int aChannels, int aSamplingRate) | |
| 16 { | |
| 17 if (Init(aChannels, aSamplingRate) == NS_OK) { | |
| 18 if (GetPacketDuration()) { | |
| 19 return true; | |
| 20 } | |
| 21 } | |
| 22 return false; | |
| 23 } | |
| 24 | |
| 25 // Return the sample rate of data to be fed to the Opus encoder, could be | |
| 26 // re-sampled if it was not one of the Opus supported sampling rates. | |
| 27 // Init() is expected to be called first. | |
| 28 int TestGetOutputSampleRate() | |
| 29 { | |
| 30 return mInitialized ? GetOutputSampleRate() : 0; | |
| 31 } | |
| 32 }; | |
| 33 | |
| 34 static bool | |
| 35 TestOpusInit(int aChannels, int aSamplingRate) | |
| 36 { | |
| 37 TestOpusTrackEncoder encoder; | |
| 38 return encoder.TestOpusCreation(aChannels, aSamplingRate); | |
| 39 } | |
| 40 | |
| 41 static int | |
| 42 TestOpusResampler(int aChannels, int aSamplingRate) | |
| 43 { | |
| 44 TestOpusTrackEncoder encoder; | |
| 45 EXPECT_TRUE(encoder.TestOpusCreation(aChannels, aSamplingRate)); | |
| 46 return encoder.TestGetOutputSampleRate(); | |
| 47 } | |
| 48 | |
| 49 TEST(Media, OpusEncoder_Init) | |
| 50 { | |
| 51 // Expect false with 0 or negative channels of input signal. | |
| 52 EXPECT_FALSE(TestOpusInit(0, 16000)); | |
| 53 EXPECT_FALSE(TestOpusInit(-1, 16000)); | |
| 54 | |
| 55 // The Opus format supports up to 8 channels, and supports multitrack audio up | |
| 56 // to 255 channels, but the current implementation supports only mono and | |
| 57 // stereo, and downmixes any more than that. | |
| 58 // Expect false with channels of input signal exceed the max supported number. | |
| 59 EXPECT_FALSE(TestOpusInit(8 + 1, 16000)); | |
| 60 | |
| 61 // Should accept channels within valid range. | |
| 62 for (int i = 1; i <= 8; i++) { | |
| 63 EXPECT_TRUE(TestOpusInit(i, 16000)); | |
| 64 } | |
| 65 | |
| 66 // Expect false with 0 or negative sampling rate of input signal. | |
| 67 EXPECT_FALSE(TestOpusInit(1, 0)); | |
| 68 EXPECT_FALSE(TestOpusInit(1, -1)); | |
| 69 } | |
| 70 | |
| 71 TEST(Media, OpusEncoder_Resample) | |
| 72 { | |
| 73 // Sampling rates of data to be fed to Opus encoder, should remain unchanged | |
| 74 // if it is one of Opus supported rates (8000, 12000, 16000, 24000 and 48000 | |
| 75 // (kHz)) at initialization. | |
| 76 EXPECT_TRUE(TestOpusResampler(1, 8000) == 8000); | |
| 77 EXPECT_TRUE(TestOpusResampler(1, 12000) == 12000); | |
| 78 EXPECT_TRUE(TestOpusResampler(1, 16000) == 16000); | |
| 79 EXPECT_TRUE(TestOpusResampler(1, 24000) == 24000); | |
| 80 EXPECT_TRUE(TestOpusResampler(1, 48000) == 48000); | |
| 81 | |
| 82 // Otherwise, it should be resampled to 48kHz by resampler. | |
| 83 EXPECT_FALSE(TestOpusResampler(1, 9600) == 9600); | |
| 84 EXPECT_FALSE(TestOpusResampler(1, 44100) == 44100); | |
| 85 } |
