content/media/gtest/TestTrackEncoder.cpp@97036ab72558
content/media/gtest/TestTrackEncoder.cpp
Tue, 06 Jan 2015 21:39:09 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Tue, 06 Jan 2015 21:39:09 +0100
- branch
- TOR_BUG_9701
- changeset 8
- 97036ab72558
- permissions
- -rw-r--r--
Conditionally force memory storage according to privacy.thirdparty.isolate;
This solves Tor bug #9701, complying with disk avoidance documented in
https://www.torproject.org/projects/torbrowser/design/#disk-avoidance.
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/. */
6 #include "gtest/gtest.h"
7 #include "OpusTrackEncoder.h"
9 using namespace mozilla;
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 }
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 };
34 static bool
35 TestOpusInit(int aChannels, int aSamplingRate)
36 {
37 TestOpusTrackEncoder encoder;
38 return encoder.TestOpusCreation(aChannels, aSamplingRate);
39 }
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 }
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));
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));
61 // Should accept channels within valid range.
62 for (int i = 1; i <= 8; i++) {
63 EXPECT_TRUE(TestOpusInit(i, 16000));
64 }
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 }
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);
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 }
