forked from mia/Aegisub
142 lines
4.7 KiB
C++
142 lines
4.7 KiB
C++
// Copyright (c) 2005-2007, Rodrigo Braz Monteiro
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright notice,
|
|
// this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above copyright notice,
|
|
// this list of conditions and the following disclaimer in the documentation
|
|
// and/or other materials provided with the distribution.
|
|
// * Neither the name of the Aegisub Group nor the names of its contributors
|
|
// may be used to endorse or promote products derived from this software
|
|
// without specific prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
// POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// Aegisub Project http://www.aegisub.org/
|
|
|
|
/// @file audio_player_portaudio.h
|
|
/// @see audio_player_portaudio.cpp
|
|
/// @ingroup audio_output
|
|
///
|
|
|
|
#ifdef WITH_PORTAUDIO
|
|
|
|
#include "include/aegisub/audio_player.h"
|
|
|
|
extern "C" {
|
|
#include <portaudio.h>
|
|
}
|
|
|
|
#include <map>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
class wxArrayString;
|
|
|
|
/// @class PortAudioPlayer
|
|
/// @brief PortAudio Player
|
|
///
|
|
class PortAudioPlayer final : public AudioPlayer {
|
|
typedef std::vector<PaDeviceIndex> DeviceVec;
|
|
/// Map of supported output devices from name -> device index
|
|
std::map<std::string, DeviceVec> devices;
|
|
|
|
/// The index of the default output devices sorted by host API priority
|
|
DeviceVec default_device;
|
|
|
|
float volume = 1.f; ///< Current volume level
|
|
int64_t current = 0; ///< Current position
|
|
int64_t start = 0; ///< Start position
|
|
int64_t end = 0; ///< End position
|
|
PaTime pa_start; ///< PortAudio internal start position
|
|
|
|
PaStream *stream = nullptr; ///< PortAudio stream
|
|
bool fallback_mono16 = false; ///< whether to fall back to 16 bit mono
|
|
|
|
/// @brief PortAudio callback, used to fill buffer for playback, and prime the playback buffer.
|
|
/// @param inputBuffer Input buffer.
|
|
/// @param outputBuffer Output buffer.
|
|
/// @param framesPerBuffer Frames per buffer.
|
|
/// @param timeInfo PortAudio time information.
|
|
/// @param statusFlags Status flags
|
|
/// @param userData Local data to hand callback
|
|
/// @return Whether to stop playback.
|
|
static int paCallback(
|
|
const void *inputBuffer,
|
|
void *outputBuffer,
|
|
unsigned long framesPerBuffer,
|
|
const PaStreamCallbackTimeInfo*
|
|
timeInfo,
|
|
PaStreamCallbackFlags
|
|
statusFlags,
|
|
void *userData);
|
|
|
|
/// @brief Called when the callback has finished.
|
|
/// @param userData Local data to be handed to the callback.
|
|
static void paStreamFinishedCallback(void *userData);
|
|
|
|
PaSampleFormat GetSampleFormat(agi::AudioProvider *provider);
|
|
|
|
/// Gather the list of output devices supported by a host API
|
|
/// @param host_idx Host API ID
|
|
void GatherDevices(PaHostApiIndex host_idx);
|
|
|
|
void OpenStream();
|
|
|
|
public:
|
|
/// @brief Constructor
|
|
PortAudioPlayer(agi::AudioProvider *provider);
|
|
|
|
/// @brief Destructor
|
|
~PortAudioPlayer();
|
|
|
|
/// @brief Play audio.
|
|
/// @param start Start position.
|
|
/// @param count Frame count
|
|
void Play(int64_t start,int64_t count);
|
|
/// @brief Stop Playback
|
|
/// @param timerToo Stop display timer?
|
|
void Stop();
|
|
|
|
/// @brief Whether audio is currently being played.
|
|
/// @return Status
|
|
bool IsPlaying();
|
|
|
|
/// @brief End position playback will stop at.
|
|
/// @return End position.
|
|
int64_t GetEndPosition() { return end; }
|
|
/// @brief Get current stream position.
|
|
/// @return Stream position
|
|
int64_t GetCurrentPosition();
|
|
|
|
/// @brief Set end position of playback
|
|
/// @param pos End position
|
|
void SetEndPosition(int64_t position) { end = position; }
|
|
|
|
|
|
/// @brief Set volume level
|
|
/// @param vol Volume
|
|
void SetVolume(double vol) { volume = vol; }
|
|
|
|
/// @brief Get current volume level
|
|
/// @return Volume level
|
|
double GetVolume() { return volume; }
|
|
|
|
/// Get list of available output devices
|
|
static wxArrayString GetOutputDevices();
|
|
};
|
|
#endif //ifdef WITH_PORTAUDIO
|