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759e07579e
https://developer.apple.com/documentation/audiounit Apple has a number of audio frameworks we could use. This uses the Audio Unit framework, as it gives us most control over the rendering of the audio frames (such as being able to quickly pause / discard buffers). From some reading, we could implement niceties such as fading playback in and out while seeking over a short (10ms) period. This patch does not implement such fancy features though. Co-Authored-By: Andrew Kaster <akaster@serenityos.org>
59 lines
1.9 KiB
C++
59 lines
1.9 KiB
C++
/*
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* Copyright (c) 2023, Gregory Bertilson <zaggy1024@gmail.com>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include <AK/Math.h>
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#include <AK/MemoryStream.h>
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#include <AK/WeakPtr.h>
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#include <LibAudio/PlaybackStream.h>
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#include <LibCore/EventLoop.h>
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#include <LibTest/TestSuite.h>
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#include <unistd.h>
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#if defined(HAVE_PULSEAUDIO)
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# include <LibAudio/PulseAudioWrappers.h>
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#endif
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// FIXME: CI doesn't run an AudioServer currently. Creating one in /etc/SystemServer.ini does not
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// allow this test to pass since CI runs in a Shell that will setsid() if it finds that the
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// current session ID is 0, and AudioServer's socket address depends on the current sid.
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// If we can fix that, this test can run on CI.
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// https://github.com/SerenityOS/serenity/issues/20538
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#if defined(AK_OS_SERENITY)
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# define STREAM_TEST BENCHMARK_CASE
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#else
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# define STREAM_TEST TEST_CASE
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#endif
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STREAM_TEST(create_and_destroy_playback_stream)
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{
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Core::EventLoop event_loop;
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bool has_implementation = false;
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#if defined(AK_OS_SERENITY) || defined(HAVE_PULSEAUDIO) || defined(AK_OS_MACOS)
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has_implementation = true;
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#endif
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{
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auto stream_result = Audio::PlaybackStream::create(Audio::OutputState::Playing, 44100, 2, 100, [](Bytes buffer, Audio::PcmSampleFormat format, size_t sample_count) -> ReadonlyBytes {
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VERIFY(format == Audio::PcmSampleFormat::Float32);
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FixedMemoryStream writing_stream { buffer };
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for (size_t i = 0; i < sample_count; i++) {
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MUST(writing_stream.write_value(0.0f));
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MUST(writing_stream.write_value(0.0f));
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}
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return buffer.trim(writing_stream.offset());
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});
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EXPECT_EQ(!stream_result.is_error(), has_implementation);
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usleep(10000);
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}
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#if defined(HAVE_PULSEAUDIO)
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VERIFY(!Audio::PulseAudioContext::weak_instance());
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#endif
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}
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