mirror of https://github.com/odrling/Aegisub
116 lines
3.4 KiB
C++
116 lines
3.4 KiB
C++
// Copyright (c) 2009, Grigori Goronzy
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright notice,
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// this list of conditions and the following disclaimer in the documentation
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// and/or other materials provided with the distribution.
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// * Neither the name of the Aegisub Group nor the names of its contributors
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// may be used to endorse or promote products derived from this software
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// without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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//
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// Aegisub Project http://www.aegisub.org/
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/// @file audio_player_oss.h
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/// @see audio_player_oss.cpp
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/// @ingroup audio_output
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///
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#ifdef WITH_OSS
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#include <sys/ioctl.h>
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#include <wx/thread.h>
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#include <fcntl.h>
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#ifdef HAVE_SOUNDCARD_H
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# include <soundcard.h>
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#else
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# ifdef HAVE_SYS_SOUNDCARD_H
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# include <sys/soundcard.h>
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# endif
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#endif
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#include "include/aegisub/audio_player.h"
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class AudioProvider;
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class OSSPlayer;
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/// Worker thread to asynchronously write audio data to the output device
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class OSSPlayerThread final : public wxThread {
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/// Parent player
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OSSPlayer *parent;
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public:
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/// Constructor
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/// @param parent Player to get audio data and playback state from
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OSSPlayerThread(OSSPlayer *parent);
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/// Main thread entry point
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wxThread::ExitCode Entry();
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};
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class OSSPlayer final : public AudioPlayer {
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friend class OSSPlayerThread;
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/// sample rate of audio
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unsigned int rate = 0;
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/// Worker thread that does the actual writing
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OSSPlayerThread *thread = nullptr;
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/// Is the player currently playing?
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volatile bool playing = false;
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/// Current volume level
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volatile float volume = 1.f;
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/// first frame of playback
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volatile unsigned long start_frame = 0;
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/// last written frame + 1
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volatile unsigned long cur_frame = 0;
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/// last frame to play
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volatile unsigned long end_frame = 0;
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/// bytes per frame
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unsigned long bpf = 0;
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/// OSS audio device handle
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volatile int dspdev = 0;
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void OpenStream();
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public:
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OSSPlayer(AudioProvider *provider);
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~OSSPlayer();
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void Play(int64_t start, int64_t count);
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void Stop();
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bool IsPlaying() { return playing; }
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int64_t GetEndPosition() { return end_frame; }
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void SetEndPosition(int64_t pos);
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int64_t GetCurrentPosition();
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void SetVolume(double vol) { volume = vol; }
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};
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#endif
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