/*
* NAME: synth->frame()
* DESCRIPTION: perform PCM synthesis of frame subband samples
*/
void mad_synth_frame(struct mad_synth *synth, struct mad_frame const *frame) {
unsigned int nch, ns;
void (*synth_frame)(struct mad_synth *, struct mad_frame const *,
unsigned int, unsigned int);
nch = MAD_NCHANNELS(&frame->header);
ns = MAD_NSBSAMPLES(&frame->header);
synth->pcm.samplerate = frame->header.samplerate;
synth->pcm.channels = nch;
synth->pcm.length = 32 * ns;
synth_frame = synth_full;
if (frame->options & MAD_OPTION_HALFSAMPLERATE) {
synth->pcm.samplerate /= 2;
synth->pcm.length /= 2;
synth_frame = synth_half;
}
synth_frame(synth, frame, nch, ns);
synth->phase = (synth->phase + ns) % 16;
}
//extern unsigned char set__;
void mad_synth_frame(struct mad_synth *synth, struct mad_frame /*const*/ *frame)
{
unsigned int nch, ns;
static int samplerate=0;
void (*synth_frame)(struct mad_synth *, struct mad_frame /*const*/ *,
unsigned int, unsigned int);
nch = MAD_NCHANNELS(&frame->header);
ns = MAD_NSBSAMPLES(&frame->header);
synth->pcm.samplerate = frame->header.samplerate;
//--set_dac_sample_rate(synth->pcm.samplerate);
//while(g_ulFlags!=7);
//if(set__)
{
vPortEnterCritical( );
SoundSetFormat(frame->header.samplerate,16,1);
//set__=0;
vPortExitCritical( );
}
synth->pcm.channels = nch;
synth->pcm.length = 32 * ns;
samplerate = synth->pcm.samplerate;
synth_frame = synth_full;
if (frame->options & MAD_OPTION_HALFSAMPLERATE) {
synth->pcm.samplerate /= 2;
synth->pcm.length /= 2;
//--set_dac_sample_rate(synth->pcm.samplerate);
vPortEnterCritical( );
SoundSetFormat(frame->header.samplerate,16,1);
vPortExitCritical( );
synth_frame = synth_half;
}
synth_frame(synth, frame, nch, ns);
synth->phase = (synth->phase + ns) % 16;
}