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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ppapi/tests/test_audio.h"
#include <string.h>
#include "ppapi/c/ppb_audio_config.h"
#include "ppapi/c/ppb_audio.h"
#include "ppapi/cpp/module.h"
#include "ppapi/tests/testing_instance.h"
#define ARRAYSIZE_UNSAFE(a) \
((sizeof(a) / sizeof(*(a))) / \
static_cast<size_t>(!(sizeof(a) % sizeof(*(a)))))
REGISTER_TEST_CASE(Audio);
bool TestAudio::Init() {
audio_interface_ = static_cast<const PPB_Audio*>(
pp::Module::Get()->GetBrowserInterface(PPB_AUDIO_INTERFACE));
audio_config_interface_ = static_cast<const PPB_AudioConfig*>(
pp::Module::Get()->GetBrowserInterface(PPB_AUDIO_CONFIG_INTERFACE));
core_interface_ = static_cast<const PPB_Core*>(
pp::Module::Get()->GetBrowserInterface(PPB_CORE_INTERFACE));
return audio_interface_ && audio_config_interface_ && core_interface_;
}
void TestAudio::RunTests(const std::string& filter) {
RUN_TEST(Creation, filter);
RUN_TEST(DestroyNoStop, filter);
RUN_TEST(Failures, filter);
}
// A trivial audio callback to provide when we're no interested in whether it
// gets called or not. It just clears the buffer so we don't play noise.
static void TrivialAudioCallback(void* sample_buffer,
uint32_t buffer_size_in_bytes,
void* user_data) {
memset(sample_buffer, 0, buffer_size_in_bytes);
}
// Test creating audio resources for all guaranteed sample rates and various
// frame counts.
std::string TestAudio::TestCreation() {
static const PP_AudioSampleRate kSampleRates[] = {
PP_AUDIOSAMPLERATE_44100,
PP_AUDIOSAMPLERATE_48000
};
static const uint32_t kRequestFrameCounts[] = {
PP_AUDIOMINSAMPLEFRAMECOUNT,
PP_AUDIOMAXSAMPLEFRAMECOUNT,
// Include some "okay-looking" frame counts; check their validity below.
1024,
2048,
4096
};
for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kSampleRates); i++) {
PP_AudioSampleRate sample_rate = kSampleRates[i];
for (size_t j = 0; j < ARRAYSIZE_UNSAFE(kRequestFrameCounts); j++) {
// Make a config, create the audio resource, and release the config.
uint32_t request_frame_count = kRequestFrameCounts[j];
uint32_t frame_count = audio_config_interface_->RecommendSampleFrameCount(
sample_rate, request_frame_count);
PP_Resource ac = audio_config_interface_->CreateStereo16Bit(
instance_->pp_instance(), sample_rate, frame_count);
ASSERT_TRUE(ac);
PP_Resource audio = audio_interface_->Create(
instance_->pp_instance(), ac, TrivialAudioCallback, NULL);
core_interface_->ReleaseResource(ac);
ac = 0;
ASSERT_TRUE(audio);
ASSERT_TRUE(audio_interface_->IsAudio(audio));
// Check that the config returned for |audio| matches what we gave it.
ac = audio_interface_->GetCurrentConfig(audio);
ASSERT_TRUE(ac);
ASSERT_TRUE(audio_config_interface_->IsAudioConfig(ac));
ASSERT_EQ(sample_rate, audio_config_interface_->GetSampleRate(ac));
ASSERT_EQ(frame_count, audio_config_interface_->GetSampleFrameCount(ac));
core_interface_->ReleaseResource(ac);
ac = 0;
// Start and stop audio playback. The documentation indicates that
// |StartPlayback()| and |StopPlayback()| may fail, but gives no
// indication as to why ... so check that they succeed.
ASSERT_TRUE(audio_interface_->StartPlayback(audio));
ASSERT_TRUE(audio_interface_->StopPlayback(audio));
core_interface_->ReleaseResource(audio);
}
}
PASS();
}
// Test that releasing the resource without calling |StopPlayback()| "works".
// TODO(viettrungluu): Figure out how to check that |StopPlayback()| properly
// waits for in-flight callbacks.
std::string TestAudio::TestDestroyNoStop() {
const PP_AudioSampleRate kSampleRate = PP_AUDIOSAMPLERATE_44100;
const uint32_t kRequestFrameCount = 2048;
uint32_t frame_count = audio_config_interface_->RecommendSampleFrameCount(
kSampleRate, kRequestFrameCount);
PP_Resource ac = audio_config_interface_->CreateStereo16Bit(
instance_->pp_instance(), kSampleRate, frame_count);
ASSERT_TRUE(ac);
PP_Resource audio = audio_interface_->Create(
instance_->pp_instance(), ac, TrivialAudioCallback, NULL);
core_interface_->ReleaseResource(ac);
ac = 0;
ASSERT_TRUE(audio);
ASSERT_TRUE(audio_interface_->IsAudio(audio));
// Start playback and release the resource.
ASSERT_TRUE(audio_interface_->StartPlayback(audio));
core_interface_->ReleaseResource(audio);
PASS();
}
std::string TestAudio::TestFailures() {
const PP_AudioSampleRate kSampleRate = PP_AUDIOSAMPLERATE_44100;
const uint32_t kRequestFrameCount = 2048;
// Test invalid parameters to |Create()|.
// We want a valid config for some of our tests of |Create()|.
uint32_t frame_count = audio_config_interface_->RecommendSampleFrameCount(
kSampleRate, kRequestFrameCount);
PP_Resource ac = audio_config_interface_->CreateStereo16Bit(
instance_->pp_instance(), kSampleRate, frame_count);
ASSERT_TRUE(ac);
// Invalid instance -> failure.
PP_Resource audio = audio_interface_->Create(
0, ac, TrivialAudioCallback, NULL);
ASSERT_EQ(0, audio);
// Invalid config -> failure.
audio = audio_interface_->Create(
instance_->pp_instance(), 0, TrivialAudioCallback, NULL);
ASSERT_EQ(0, audio);
// Null callback -> failure.
audio = audio_interface_->Create(
instance_->pp_instance(), ac, NULL, NULL);
ASSERT_EQ(0, audio);
core_interface_->ReleaseResource(ac);
ac = 0;
// Test the other functions with an invalid audio resource.
ASSERT_FALSE(audio_interface_->IsAudio(0));
ASSERT_EQ(0, audio_interface_->GetCurrentConfig(0));
ASSERT_FALSE(audio_interface_->StartPlayback(0));
ASSERT_FALSE(audio_interface_->StopPlayback(0));
PASS();
}
// TODO(viettrungluu): Test that callbacks get called, playback happens, etc.
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