The Tor Browser / annotate

content/media/compiledtest/TestAudioMixer.cpp@8bccb770b82d (annotated)

content/media/compiledtest/TestAudioMixer.cpp

Wed, 31 Dec 2014 13:27:57 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Wed, 31 Dec 2014 13:27:57 +0100
branch
TOR_BUG_3246
changeset 6
8bccb770b82d
permissions
-rw-r--r--

Ignore runtime configuration files generated during quality assurance.

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 file,
michael@0 4 * You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0 5
michael@0 6 #include "AudioMixer.h"
michael@0 7 #include <assert.h>
michael@0 8
michael@0 9 using mozilla::AudioDataValue;
michael@0 10 using mozilla::AudioSampleFormat;
michael@0 11
michael@0 12 /* In this test, the different audio stream and channels are always created to
michael@0 13 * cancel each other. */
michael@0 14 void MixingDone(AudioDataValue* aData, AudioSampleFormat aFormat, uint32_t aChannels, uint32_t aFrames, uint32_t aSampleRate)
michael@0 15 {
michael@0 16 bool silent = true;
michael@0 17 for (uint32_t i = 0; i < aChannels * aFrames; i++) {
michael@0 18 if (aData[i] != 0.0) {
michael@0 19 if (aFormat == mozilla::AUDIO_FORMAT_S16) {
michael@0 20 fprintf(stderr, "Sample at %d is not silent: %d\n", i, (short)aData[i]);
michael@0 21 } else {
michael@0 22 fprintf(stderr, "Sample at %d is not silent: %f\n", i, (float)aData[i]);
michael@0 23 }
michael@0 24 silent = false;
michael@0 25 }
michael@0 26 }
michael@0 27 if (!silent) {
michael@0 28 MOZ_CRASH();
michael@0 29 }
michael@0 30 }
michael@0 31
michael@0 32 /* Helper function to give us the maximum and minimum value that don't clip,
michael@0 33 * for a given sample format (integer or floating-point). */
michael@0 34 template<typename T>
michael@0 35 T GetLowValue();
michael@0 36
michael@0 37 template<typename T>
michael@0 38 T GetHighValue();
michael@0 39
michael@0 40 template<>
michael@0 41 float GetLowValue<float>() {
michael@0 42 return -1.0;
michael@0 43 }
michael@0 44
michael@0 45 template<>
michael@0 46 short GetLowValue<short>() {
michael@0 47 return -INT16_MAX;
michael@0 48 }
michael@0 49
michael@0 50 template<>
michael@0 51 float GetHighValue<float>() {
michael@0 52 return 1.0;
michael@0 53 }
michael@0 54
michael@0 55 template<>
michael@0 56 short GetHighValue<short>() {
michael@0 57 return INT16_MAX;
michael@0 58 }
michael@0 59
michael@0 60 void FillBuffer(AudioDataValue* aBuffer, uint32_t aLength, AudioDataValue aValue)
michael@0 61 {
michael@0 62 AudioDataValue* end = aBuffer + aLength;
michael@0 63 while (aBuffer != end) {
michael@0 64 *aBuffer++ = aValue;
michael@0 65 }
michael@0 66 }
michael@0 67
michael@0 68 int main(int argc, char* argv[]) {
michael@0 69 const uint32_t CHANNEL_LENGTH = 256;
michael@0 70 const uint32_t AUDIO_RATE = 44100;
michael@0 71 AudioDataValue a[CHANNEL_LENGTH * 2];
michael@0 72 AudioDataValue b[CHANNEL_LENGTH * 2];
michael@0 73 FillBuffer(a, CHANNEL_LENGTH, GetLowValue<AudioDataValue>());
michael@0 74 FillBuffer(a + CHANNEL_LENGTH, CHANNEL_LENGTH, GetHighValue<AudioDataValue>());
michael@0 75 FillBuffer(b, CHANNEL_LENGTH, GetHighValue<AudioDataValue>());
michael@0 76 FillBuffer(b + CHANNEL_LENGTH, CHANNEL_LENGTH, GetLowValue<AudioDataValue>());
michael@0 77
michael@0 78 {
michael@0 79 int iterations = 2;
michael@0 80 mozilla::AudioMixer mixer(MixingDone);
michael@0 81
michael@0 82 fprintf(stderr, "Test AudioMixer constant buffer length.\n");
michael@0 83
michael@0 84 while (iterations--) {
michael@0 85 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 86 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 87 mixer.FinishMixing();
michael@0 88 }
michael@0 89 }
michael@0 90
michael@0 91 {
michael@0 92 mozilla::AudioMixer mixer(MixingDone);
michael@0 93
michael@0 94 fprintf(stderr, "Test AudioMixer variable buffer length.\n");
michael@0 95
michael@0 96 FillBuffer(a, CHANNEL_LENGTH / 2, GetLowValue<AudioDataValue>());
michael@0 97 FillBuffer(a + CHANNEL_LENGTH / 2, CHANNEL_LENGTH / 2, GetLowValue<AudioDataValue>());
michael@0 98 FillBuffer(b, CHANNEL_LENGTH / 2, GetHighValue<AudioDataValue>());
michael@0 99 FillBuffer(b + CHANNEL_LENGTH / 2, CHANNEL_LENGTH / 2, GetHighValue<AudioDataValue>());
michael@0 100 mixer.Mix(a, 2, CHANNEL_LENGTH / 2, AUDIO_RATE);
michael@0 101 mixer.Mix(b, 2, CHANNEL_LENGTH / 2, AUDIO_RATE);
michael@0 102 mixer.FinishMixing();
michael@0 103 FillBuffer(a, CHANNEL_LENGTH, GetLowValue<AudioDataValue>());
michael@0 104 FillBuffer(a + CHANNEL_LENGTH, CHANNEL_LENGTH, GetHighValue<AudioDataValue>());
michael@0 105 FillBuffer(b, CHANNEL_LENGTH, GetHighValue<AudioDataValue>());
michael@0 106 FillBuffer(b + CHANNEL_LENGTH, CHANNEL_LENGTH, GetLowValue<AudioDataValue>());
michael@0 107 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 108 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 109 mixer.FinishMixing();
michael@0 110 FillBuffer(a, CHANNEL_LENGTH / 2, GetLowValue<AudioDataValue>());
michael@0 111 FillBuffer(a + CHANNEL_LENGTH / 2, CHANNEL_LENGTH / 2, GetLowValue<AudioDataValue>());
michael@0 112 FillBuffer(b, CHANNEL_LENGTH / 2, GetHighValue<AudioDataValue>());
michael@0 113 FillBuffer(b + CHANNEL_LENGTH / 2, CHANNEL_LENGTH / 2, GetHighValue<AudioDataValue>());
michael@0 114 mixer.Mix(a, 2, CHANNEL_LENGTH / 2, AUDIO_RATE);
michael@0 115 mixer.Mix(b, 2, CHANNEL_LENGTH / 2, AUDIO_RATE);
michael@0 116 mixer.FinishMixing();
michael@0 117 }
michael@0 118
michael@0 119 FillBuffer(a, CHANNEL_LENGTH, GetLowValue<AudioDataValue>());
michael@0 120 FillBuffer(b, CHANNEL_LENGTH, GetHighValue<AudioDataValue>());
michael@0 121
michael@0 122 {
michael@0 123 mozilla::AudioMixer mixer(MixingDone);
michael@0 124 fprintf(stderr, "Test AudioMixer variable channel count.\n");
michael@0 125
michael@0 126 mixer.Mix(a, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 127 mixer.Mix(b, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 128 mixer.FinishMixing();
michael@0 129 mixer.Mix(a, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 130 mixer.Mix(b, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 131 mixer.FinishMixing();
michael@0 132 mixer.Mix(a, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 133 mixer.Mix(b, 1, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 134 mixer.FinishMixing();
michael@0 135 }
michael@0 136
michael@0 137 {
michael@0 138 mozilla::AudioMixer mixer(MixingDone);
michael@0 139 fprintf(stderr, "Test AudioMixer variable stream count.\n");
michael@0 140
michael@0 141 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 142 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 143 mixer.FinishMixing();
michael@0 144 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 145 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 146 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 147 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 148 mixer.FinishMixing();
michael@0 149 mixer.Mix(a, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 150 mixer.Mix(b, 2, CHANNEL_LENGTH, AUDIO_RATE);
michael@0 151 mixer.FinishMixing();
michael@0 152 }
michael@0 153
michael@0 154 return 0;
michael@0 155 }
michael@0 156

Mercurial Repository: The Tor Browser

Europalab SCM Repository Server

mercurial