diff options
Diffstat (limited to 'faad2/src/aacDECdrop/wave_out.c')
| -rw-r--r-- | faad2/src/aacDECdrop/wave_out.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/faad2/src/aacDECdrop/wave_out.c b/faad2/src/aacDECdrop/wave_out.c deleted file mode 100644 index 02131ab..0000000 --- a/faad2/src/aacDECdrop/wave_out.c +++ /dev/null @@ -1,190 +0,0 @@ -/*
- * function: Support for playing wave files - Win32 - ONLY
- *
- * This program is distributed under the GNU General Public License, version 2.
- * A copy of this license is included with this source.
- *
- * Copyright (C) 2002 John Edwards
- */
-
-#include <string.h>
-#include <errno.h>
-#include "wave_out.h"
-
-#define MAX_WAVEBLOCKS 32
-
-
-static CRITICAL_SECTION cs;
-static HWAVEOUT dev = NULL;
-static int ScheduledBlocks = 0;
-static int PlayedWaveHeadersCount = 0; // free index
-static WAVEHDR* PlayedWaveHeaders [MAX_WAVEBLOCKS];
-
-
-static int
-Box ( const char* msg )
-{
- MessageBox ( NULL, msg, "Error Message . . .", MB_OK | MB_ICONEXCLAMATION );
- return -1;
-}
-
-
-/*
- * This function registers already played WAVE chunks. Freeing is done by free_memory(),
- */
-
-static void CALLBACK
-wave_callback ( HWAVE hWave, UINT uMsg, DWORD dwInstance, DWORD dwParam1, DWORD dwParam2 )
-{
- if ( uMsg == WOM_DONE )
- {
- EnterCriticalSection ( &cs );
- PlayedWaveHeaders [PlayedWaveHeadersCount++] = (WAVEHDR*) dwParam1;
- LeaveCriticalSection ( &cs );
- }
-}
-
-
-static void
-free_memory ( void )
-{
- WAVEHDR* wh;
- HGLOBAL hg;
-
- EnterCriticalSection ( &cs );
- wh = PlayedWaveHeaders [--PlayedWaveHeadersCount];
- ScheduledBlocks--; // decrease the number of USED blocks
- LeaveCriticalSection ( &cs );
-
- waveOutUnprepareHeader ( dev, wh, sizeof (WAVEHDR) );
-
- hg = GlobalHandle ( wh -> lpData ); // Deallocate the buffer memory
- GlobalUnlock (hg);
- GlobalFree (hg);
-
- hg = GlobalHandle ( wh ); // Deallocate the header memory
- GlobalUnlock (hg);
- GlobalFree (hg);
-}
-
-
-Int
-Set_WIN_Params ( FILE_T dummyFile ,
- Ldouble SampleFreq,
- Uint BitsPerSample,
- Uint Channels )
-{
- WAVEFORMATEX outFormat;
- UINT deviceID = WAVE_MAPPER;
-
- (void) dummyFile;
-
- if ( waveOutGetNumDevs () == 0 )
- return Box ( "No audio device present." );
-
- outFormat.wFormatTag = WAVE_FORMAT_PCM;
- outFormat.wBitsPerSample = BitsPerSample;
- outFormat.nChannels = Channels;
- outFormat.nSamplesPerSec = (unsigned long)(SampleFreq);
- outFormat.nBlockAlign = outFormat.nChannels * outFormat.wBitsPerSample/8;
- outFormat.nAvgBytesPerSec = outFormat.nSamplesPerSec * outFormat.nChannels * outFormat.wBitsPerSample/8;
-
- switch ( waveOutOpen ( &dev, deviceID, &outFormat, (DWORD)wave_callback, 0, CALLBACK_FUNCTION ) )
- {
- case MMSYSERR_ALLOCATED: return Box ( "Device is already open." );
- case MMSYSERR_BADDEVICEID: return Box ( "The specified device is out of range." );
- case MMSYSERR_NODRIVER: return Box ( "There is no audio driver in this system." );
- case MMSYSERR_NOMEM: return Box ( "Unable to allocate sound memory." );
- case WAVERR_BADFORMAT: return Box ( "This audio format is not supported." );
- case WAVERR_SYNC: return Box ( "The device is synchronous." );
- default: return Box ( "Unknown media error." );
- case MMSYSERR_NOERROR: break;
- }
-
- waveOutReset ( dev );
- InitializeCriticalSection ( &cs );
- SetPriorityClass ( GetCurrentProcess (), HIGH_PRIORITY_CLASS );
-// SetPriorityClass ( GetCurrentProcess (), REALTIME_PRIORITY_CLASS );
- return 0;
-}
-
-
-int
-WIN_Play_Samples ( const void* data, size_t len )
-{
- HGLOBAL hg;
- HGLOBAL hg2;
- LPWAVEHDR wh;
- void* allocptr;
-
- do
- {
- while ( PlayedWaveHeadersCount > 0 ) // free used blocks ...
- free_memory ();
-
- if ( ScheduledBlocks < sizeof(PlayedWaveHeaders)/sizeof(*PlayedWaveHeaders) ) // wait for a free block ...
- break;
- Sleep (26);
-
- } while (1);
-
- if ( (hg2 = GlobalAlloc ( GMEM_MOVEABLE, len )) == NULL ) // allocate some memory for a copy of the buffer
- return Box ( "GlobalAlloc failed." );
-
- allocptr = GlobalLock (hg2);
- CopyMemory ( allocptr, data, len ); // Here we can call any modification output functions we want....
-
- if ( (hg = GlobalAlloc (GMEM_MOVEABLE | GMEM_ZEROINIT, sizeof (WAVEHDR))) == NULL ) // now make a header and WRITE IT!
- return -1;
-
- wh = GlobalLock (hg);
- wh->dwBufferLength = len;
- wh->lpData = allocptr;
-
- if ( waveOutPrepareHeader ( dev, wh, sizeof (WAVEHDR)) != MMSYSERR_NOERROR )
- {
- GlobalUnlock (hg);
- GlobalFree (hg);
- return -1;
- }
-
- if ( waveOutWrite ( dev, wh, sizeof (WAVEHDR)) != MMSYSERR_NOERROR )
- {
- GlobalUnlock (hg);
- GlobalFree (hg);
- return -1;
- }
-
- EnterCriticalSection ( &cs );
- ScheduledBlocks++;
- LeaveCriticalSection ( &cs );
-
- return len;
-}
-
-
-int
-WIN_Audio_close ( void )
-{
- if ( dev != NULL )
- {
- while ( ScheduledBlocks > 0 )
- {
- Sleep (ScheduledBlocks);
- while ( PlayedWaveHeadersCount > 0 ) // free used blocks ...
- free_memory ();
- }
-
- waveOutReset (dev); // reset the device
- waveOutClose (dev); // close the device
- dev = NULL;
- }
-
- DeleteCriticalSection ( &cs );
- ScheduledBlocks = 0;
- return 0;
-}
-
-
-/******************************** end of wave_out.c ********************************/
-
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