mirror of https://github.com/odrling/Aegisub
100 lines
3.6 KiB
C++
100 lines
3.6 KiB
C++
// Copyright (c) 2008, Niels Martin Hansen
|
|
// 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_dsound2.h
|
|
/// @see audio_player_dsound2.cpp
|
|
/// @ingroup audio_output
|
|
///
|
|
|
|
#ifdef WITH_DIRECTSOUND
|
|
|
|
#include "include/aegisub/audio_player.h"
|
|
|
|
class DirectSoundPlayer2Thread;
|
|
|
|
/// @class DirectSoundPlayer2
|
|
/// @brief New implementation of DirectSound-based audio player
|
|
///
|
|
/// The core design idea is to have a playback thread that owns the DirectSound COM objects
|
|
/// and performs all playback operations, and use the player object as a proxy to
|
|
/// send commands to the playback thread.
|
|
class DirectSoundPlayer2 final : public AudioPlayer {
|
|
/// The playback thread
|
|
std::unique_ptr<DirectSoundPlayer2Thread> thread;
|
|
|
|
/// Desired length in milliseconds to write ahead of the playback cursor
|
|
int WantedLatency;
|
|
|
|
/// Multiplier for WantedLatency to get total buffer length
|
|
int BufferLength;
|
|
|
|
/// @brief Tell whether playback thread is alive
|
|
/// @return True if there is a playback thread and it's ready
|
|
bool IsThreadAlive();
|
|
|
|
public:
|
|
/// @brief Constructor
|
|
DirectSoundPlayer2(AudioProvider *provider);
|
|
/// @brief Destructor
|
|
~DirectSoundPlayer2();
|
|
|
|
/// @brief Start playback
|
|
/// @param start First audio frame to play
|
|
/// @param count Number of audio frames to play
|
|
void Play(int64_t start,int64_t count);
|
|
|
|
/// @brief Stop audio playback
|
|
/// @param timerToo Whether to also stop the playback update timer
|
|
void Stop();
|
|
|
|
/// @brief Tell whether playback is active
|
|
/// @return True if audio is playing back
|
|
bool IsPlaying();
|
|
|
|
/// @brief Get playback end position
|
|
/// @return Audio frame index
|
|
///
|
|
/// Returns 0 if playback is stopped or there is no playback thread
|
|
int64_t GetEndPosition();
|
|
/// @brief Get approximate playback position
|
|
/// @return Index of audio frame user is currently hearing
|
|
///
|
|
/// Returns 0 if playback is stopped or there is no playback thread
|
|
int64_t GetCurrentPosition();
|
|
|
|
/// @brief Change playback end position
|
|
/// @param pos New end position
|
|
void SetEndPosition(int64_t pos);
|
|
|
|
/// @brief Change playback volume
|
|
/// @param vol Amplification factor
|
|
void SetVolume(double vol);
|
|
};
|
|
#endif
|