gstreamer/ext/mikmod/drv_gst.c

#include <stdlib.h>

#include "gstmikmod.h"

static int buffer_size;
static SBYTE *audiobuffer = NULL;
extern int need_sync;

static BOOL mikmod_IsThere( void )
{
  return 1;
}

static BOOL mikmod_Init( void )
{
  buffer_size = 32768;
  if (!( audiobuffer = ( SBYTE * ) g_malloc( buffer_size ) ))
    return 1;
    
  return VC_Init();
}

static void mikmod_Exit( void )
{
  VC_Exit();

  if ( audiobuffer )
  {
    g_free(audiobuffer);
    audiobuffer = NULL;
  }	
}


static void mikmod_Update( void )
{
gint length;
GstBuffer *outdata;

  length = VC_WriteBytes((SBYTE *) audiobuffer, buffer_size);
  	
  outdata = gst_buffer_new();
  
  GST_BUFFER_DATA( outdata ) = g_memdup( audiobuffer, length );
  GST_BUFFER_SIZE( outdata ) = length;

  if ( need_sync == 1 )
  {
    GST_BUFFER_FLAG_SET (outdata, GST_BUFFER_FLUSH);
    need_sync = 0 ;
  }
  gst_pad_push( srcpad, outdata );
      
}

static BOOL mikmod_Reset( void )
{
  VC_Exit();
  return VC_Init();
}


MDRIVER drv_gst =
{
	NULL,
	"mikmod",
	"mikmod output driver v1.0",
	0, 255,
#if (LIBMIKMOD_VERSION > 0x030106)
        "mikmod",
        NULL,
#endif
        mikmod_IsThere, 
	VC_SampleLoad,
	VC_SampleUnload,
	VC_SampleSpace,
	VC_SampleLength,
	mikmod_Init,
	mikmod_Exit,
	mikmod_Reset,
	VC_SetNumVoices,
	VC_PlayStart,
	VC_PlayStop,
	mikmod_Update,
	NULL,
	VC_VoiceSetVolume,
	VC_VoiceGetVolume,
	VC_VoiceSetFrequency,
	VC_VoiceGetFrequency,
	VC_VoiceSetPanning,
	VC_VoiceGetPanning,
	VC_VoicePlay,
	VC_VoiceStop,
	VC_VoiceStopped,
	VC_VoiceGetPosition,
	VC_VoiceRealVolume
};