Mike-Solar
a7ddc0f114
- playback timer uses the audio output device as its master clock: the PortAudio callback counts consumed frames (including underrun zero-fill) so video cannot drift away from what is heard; wall clock remains as fallback when no clocked output is running - output clock compensates for device output latency; new Preferences > Audio buffer size setting (0 = auto) - SampleBuffer::speed() now uses linear interpolation instead of nearest-neighbor sampling - regression tests: audio-clock driven timer (fwd/rev/speed), wall clock fallback, interpolation correctness
135 lines
3.2 KiB
C++
135 lines
3.2 KiB
C++
/***
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Olive - Non-Linear Video Editor
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Copyright (C) 2022 Olive Team
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Modifications Copyright (C) 2025 mikesolar
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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***/
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#ifndef OAK_AUDIOMANAGER_H
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#define OAK_AUDIOMANAGER_H
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#include <memory>
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#include <QtConcurrent/QtConcurrent>
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#include <QThread>
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#include <portaudio.h>
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#include "audiovisualwaveform.h"
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#include "audio/audioprocessor.h"
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#include "common/define.h"
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#include "common/playbackaudioclock.h"
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#include "codec/ffmpeg/ffmpegencoder.h"
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#include "render/audioplaybackcache.h"
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#include "render/previewaudiodevice.h"
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namespace olive
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{
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/**
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* @brief Audio input and output management class
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*
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* Wraps around a QAudioOutput and AudioHybridDevice, connecting them together and exposing audio functionality to
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* the rest of the system.
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*/
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class AudioManager : public QObject, public PlaybackAudioClock {
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Q_OBJECT
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public:
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static void create_instance();
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static void destroy_instance();
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static AudioManager *instance();
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void set_output_notify_interval(int n);
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bool push_to_output(const AudioParams ¶ms, const QByteArray &samples,
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QString *error = nullptr);
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void clear_buffered_output();
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void stop_output();
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/**
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* @brief Seconds of audio consumed by the output device since the last reset
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*
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* Compensated for output latency so it represents what is actually
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* audible. Returns a negative value when no output stream is running.
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*/
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virtual double seconds() const override;
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/**
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* @brief Restarts the output clock at zero for a new playback run
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*/
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void reset_output_clock();
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PaDeviceIndex get_output_device() const
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{
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return output_device_;
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}
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PaDeviceIndex get_input_device() const
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{
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return input_device_;
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}
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void set_output_device(PaDeviceIndex device);
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void set_input_device(PaDeviceIndex device);
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void hard_reset();
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bool start_recording(const EncodingParams ¶ms,
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QString *error_str = nullptr);
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void stop_recording();
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static PaDeviceIndex find_config_device_by_name(bool is_output_device);
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static PaDeviceIndex find_device_by_name(const QString &s,
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bool is_output_device);
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static PaStreamParameters get_port_audio_params(const AudioParams &p,
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PaDeviceIndex device);
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signals:
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void output_notify();
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void output_params_changed();
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private:
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AudioManager();
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virtual ~AudioManager() override;
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static PaSampleFormat get_port_audio_sample_format(SampleFormat fmt);
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void close_output_stream();
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static AudioManager *instance_;
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PaDeviceIndex output_device_;
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PaStream *output_stream_;
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AudioParams output_params_;
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PreviewAudioDevice *output_buffer_;
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PaDeviceIndex input_device_;
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PaStream *input_stream_;
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FFmpegEncoder *input_encoder_;
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};
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}
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#endif // OAK_AUDIOMANAGER_H
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