content/media/gtest/TestTrackEncoder.cpp@44a2da4a2ab2 (annotated)
content/media/gtest/TestTrackEncoder.cpp
Fri, 16 Jan 2015 04:50:19 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Fri, 16 Jan 2015 04:50:19 +0100
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
- permissions
- -rw-r--r--
Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | #include "gtest/gtest.h" |
| michael@0 | 7 | #include "OpusTrackEncoder.h" |
| michael@0 | 8 | |
| michael@0 | 9 | using namespace mozilla; |
| michael@0 | 10 | |
| michael@0 | 11 | class TestOpusTrackEncoder : public OpusTrackEncoder |
| michael@0 | 12 | { |
| michael@0 | 13 | public: |
| michael@0 | 14 | // Return true if it has successfully initialized the Opus encoder. |
| michael@0 | 15 | bool TestOpusCreation(int aChannels, int aSamplingRate) |
| michael@0 | 16 | { |
| michael@0 | 17 | if (Init(aChannels, aSamplingRate) == NS_OK) { |
| michael@0 | 18 | if (GetPacketDuration()) { |
| michael@0 | 19 | return true; |
| michael@0 | 20 | } |
| michael@0 | 21 | } |
| michael@0 | 22 | return false; |
| michael@0 | 23 | } |
| michael@0 | 24 | |
| michael@0 | 25 | // Return the sample rate of data to be fed to the Opus encoder, could be |
| michael@0 | 26 | // re-sampled if it was not one of the Opus supported sampling rates. |
| michael@0 | 27 | // Init() is expected to be called first. |
| michael@0 | 28 | int TestGetOutputSampleRate() |
| michael@0 | 29 | { |
| michael@0 | 30 | return mInitialized ? GetOutputSampleRate() : 0; |
| michael@0 | 31 | } |
| michael@0 | 32 | }; |
| michael@0 | 33 | |
| michael@0 | 34 | static bool |
| michael@0 | 35 | TestOpusInit(int aChannels, int aSamplingRate) |
| michael@0 | 36 | { |
| michael@0 | 37 | TestOpusTrackEncoder encoder; |
| michael@0 | 38 | return encoder.TestOpusCreation(aChannels, aSamplingRate); |
| michael@0 | 39 | } |
| michael@0 | 40 | |
| michael@0 | 41 | static int |
| michael@0 | 42 | TestOpusResampler(int aChannels, int aSamplingRate) |
| michael@0 | 43 | { |
| michael@0 | 44 | TestOpusTrackEncoder encoder; |
| michael@0 | 45 | EXPECT_TRUE(encoder.TestOpusCreation(aChannels, aSamplingRate)); |
| michael@0 | 46 | return encoder.TestGetOutputSampleRate(); |
| michael@0 | 47 | } |
| michael@0 | 48 | |
| michael@0 | 49 | TEST(Media, OpusEncoder_Init) |
| michael@0 | 50 | { |
| michael@0 | 51 | // Expect false with 0 or negative channels of input signal. |
| michael@0 | 52 | EXPECT_FALSE(TestOpusInit(0, 16000)); |
| michael@0 | 53 | EXPECT_FALSE(TestOpusInit(-1, 16000)); |
| michael@0 | 54 | |
| michael@0 | 55 | // The Opus format supports up to 8 channels, and supports multitrack audio up |
| michael@0 | 56 | // to 255 channels, but the current implementation supports only mono and |
| michael@0 | 57 | // stereo, and downmixes any more than that. |
| michael@0 | 58 | // Expect false with channels of input signal exceed the max supported number. |
| michael@0 | 59 | EXPECT_FALSE(TestOpusInit(8 + 1, 16000)); |
| michael@0 | 60 | |
| michael@0 | 61 | // Should accept channels within valid range. |
| michael@0 | 62 | for (int i = 1; i <= 8; i++) { |
| michael@0 | 63 | EXPECT_TRUE(TestOpusInit(i, 16000)); |
| michael@0 | 64 | } |
| michael@0 | 65 | |
| michael@0 | 66 | // Expect false with 0 or negative sampling rate of input signal. |
| michael@0 | 67 | EXPECT_FALSE(TestOpusInit(1, 0)); |
| michael@0 | 68 | EXPECT_FALSE(TestOpusInit(1, -1)); |
| michael@0 | 69 | } |
| michael@0 | 70 | |
| michael@0 | 71 | TEST(Media, OpusEncoder_Resample) |
| michael@0 | 72 | { |
| michael@0 | 73 | // Sampling rates of data to be fed to Opus encoder, should remain unchanged |
| michael@0 | 74 | // if it is one of Opus supported rates (8000, 12000, 16000, 24000 and 48000 |
| michael@0 | 75 | // (kHz)) at initialization. |
| michael@0 | 76 | EXPECT_TRUE(TestOpusResampler(1, 8000) == 8000); |
| michael@0 | 77 | EXPECT_TRUE(TestOpusResampler(1, 12000) == 12000); |
| michael@0 | 78 | EXPECT_TRUE(TestOpusResampler(1, 16000) == 16000); |
| michael@0 | 79 | EXPECT_TRUE(TestOpusResampler(1, 24000) == 24000); |
| michael@0 | 80 | EXPECT_TRUE(TestOpusResampler(1, 48000) == 48000); |
| michael@0 | 81 | |
| michael@0 | 82 | // Otherwise, it should be resampled to 48kHz by resampler. |
| michael@0 | 83 | EXPECT_FALSE(TestOpusResampler(1, 9600) == 9600); |
| michael@0 | 84 | EXPECT_FALSE(TestOpusResampler(1, 44100) == 44100); |
| michael@0 | 85 | } |
