static picture_t *Adjust(filter_t *filter, picture_t *pic)
{
filter_sys_t *sys = filter->p_sys;
vlc_vdp_video_field_t *f = pic->context;
if (unlikely(f == NULL))
return pic;
f->procamp.brightness = vlc_atomic_load_float(&sys->brightness);
f->procamp.contrast = vlc_atomic_load_float(&sys->contrast);
f->procamp.saturation = vlc_atomic_load_float(&sys->saturation);
f->procamp.hue = vlc_atomic_load_float(&sys->hue);
return pic;
}
static block_t *DoPitchWork( filter_t * p_filter, block_t * p_in_buf )
{
filter_sys_t *p = p_filter->p_sys;
float rate_shift = vlc_atomic_load_float( &p->rate_shift );
/* Set matching rates for resampler's output and scaletempo's input */
p->resampler->fmt_out.audio.i_rate = rate_shift;
p_filter->fmt_in.audio.i_rate = rate_shift;
/* Change rate, thus changing pitch */
p_in_buf = p->resampler->pf_audio_filter( p->resampler, p_in_buf );
/* Change tempo while preserving shifted pitch */
return DoWork( p_filter, p_in_buf );
}
static filter_t *ResamplerCreate(filter_t *p_filter)
{
filter_t *p_resampler = vlc_object_create( p_filter, sizeof (filter_t) );
if( unlikely( p_resampler == NULL ) )
return NULL;
p_resampler->owner.sys = NULL;
p_resampler->p_cfg = NULL;
p_resampler->fmt_in = p_filter->fmt_in;
p_resampler->fmt_out = p_filter->fmt_in;
p_resampler->fmt_out.audio.i_rate =
vlc_atomic_load_float( &p_filter->p_sys->rate_shift );
aout_FormatPrepare( &p_resampler->fmt_out.audio );
p_resampler->p_module = module_need( p_resampler, "audio resampler", NULL,
false );
if( p_resampler->p_module == NULL )
{
msg_Err( p_filter, "Could not load resampler" );
vlc_object_release( p_resampler );
return NULL;
}
return p_resampler;
}