mirror of
https://github.com/saitohirga/WSJT-X.git
synced 2024-11-07 17:46:04 -05:00
8d353a5b3b
git-svn-id: svn+ssh://svn.code.sf.net/p/wsjt/wsjt/trunk@189 ab8295b8-cf94-4d9e-aec4-7959e3be5d79
109 lines
4.2 KiB
C++
109 lines
4.2 KiB
C++
/*
|
|
* $Id$
|
|
* PortAudio Portable Real-Time Audio Library
|
|
* Latest Version at: http://www.portaudio.com
|
|
* BeOS Media Kit Implementation by Joshua Haberman
|
|
*
|
|
* Copyright (c) 2001 Joshua Haberman <joshua@haberman.com>
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files
|
|
* (the "Software"), to deal in the Software without restriction,
|
|
* including without limitation the rights to use, copy, modify, merge,
|
|
* publish, distribute, sublicense, and/or sell copies of the Software,
|
|
* and to permit persons to whom the Software is furnished to do so,
|
|
* subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* Any person wishing to distribute modifications to the Software is
|
|
* requested to send the modifications to the original developer so that
|
|
* they can be incorporated into the canonical version.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
|
|
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
|
|
* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <be/media/MediaRoster.h>
|
|
#include <be/media/MediaEventLooper.h>
|
|
#include <be/media/BufferProducer.h>
|
|
|
|
#include "portaudio.h"
|
|
|
|
class PaPlaybackNode :
|
|
public BBufferProducer,
|
|
public BMediaEventLooper
|
|
{
|
|
|
|
public:
|
|
PaPlaybackNode( uint32 channels, float frame_rate, uint32 frames_per_buffer,
|
|
PortAudioCallback *callback, void *user_data );
|
|
~PaPlaybackNode();
|
|
|
|
|
|
/* Local methods ******************************************/
|
|
|
|
BBuffer *FillNextBuffer(bigtime_t time);
|
|
void SetSampleFormat(PaSampleFormat inFormat, PaSampleFormat outFormat);
|
|
bool IsRunning();
|
|
PaTimestamp GetStreamTime();
|
|
|
|
/* BMediaNode methods *************************************/
|
|
|
|
BMediaAddOn* AddOn( int32 * ) const;
|
|
status_t HandleMessage( int32 message, const void *data, size_t size );
|
|
|
|
/* BMediaEventLooper methods ******************************/
|
|
|
|
void HandleEvent( const media_timed_event *event, bigtime_t lateness,
|
|
bool realTimeEvent );
|
|
void NodeRegistered();
|
|
|
|
/* BBufferProducer methods ********************************/
|
|
|
|
status_t FormatSuggestionRequested( media_type type, int32 quality,
|
|
media_format* format );
|
|
status_t FormatProposal( const media_source& output, media_format* format );
|
|
status_t FormatChangeRequested( const media_source& source,
|
|
const media_destination& destination, media_format* io_format, int32* );
|
|
|
|
status_t GetNextOutput( int32* cookie, media_output* out_output );
|
|
status_t DisposeOutputCookie( int32 cookie );
|
|
|
|
void LateNoticeReceived( const media_source& what, bigtime_t how_much,
|
|
bigtime_t performance_time );
|
|
void EnableOutput( const media_source& what, bool enabled, int32* _deprecated_ );
|
|
|
|
status_t PrepareToConnect( const media_source& what,
|
|
const media_destination& where, media_format* format,
|
|
media_source* out_source, char* out_name );
|
|
void Connect(status_t error, const media_source& source,
|
|
const media_destination& destination, const media_format& format,
|
|
char* io_name);
|
|
void Disconnect(const media_source& what, const media_destination& where);
|
|
|
|
status_t SetBufferGroup(const media_source& for_source, BBufferGroup* newGroup);
|
|
|
|
bool mAborted;
|
|
|
|
private:
|
|
media_output mOutput;
|
|
media_format mPreferredFormat;
|
|
uint32 mOutputSampleWidth, mFramesPerBuffer;
|
|
BBufferGroup *mBufferGroup;
|
|
bigtime_t mDownstreamLatency, mInternalLatency, mStartTime;
|
|
uint64 mSamplesSent;
|
|
PortAudioCallback *mCallback;
|
|
void *mUserData;
|
|
bool mRunning;
|
|
|
|
};
|
|
|