/*****************************************************************************
* Open: initialize as "audio filter"
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
/* Allocate structure */
filter_sys_t *p_sys = p_filter->p_sys = malloc( sizeof(*p_sys) );
if( ! p_sys )
return VLC_ENOMEM;
p_sys->scale = 1.0;
p_sys->sample_rate = p_filter->fmt_in.audio.i_rate;
p_sys->samples_per_frame = aout_FormatNbChannels( &p_filter->fmt_in.audio );
p_sys->bytes_per_sample = 4;
p_sys->bytes_per_frame = p_sys->samples_per_frame * p_sys->bytes_per_sample;
msg_Dbg( p_this, "format: %5i rate, %i nch, %i bps, %s",
p_sys->sample_rate,
p_sys->samples_per_frame,
p_sys->bytes_per_sample,
"fl32" );
p_sys->ms_stride = var_InheritInteger( p_this, "scaletempo-stride" );
p_sys->percent_overlap = var_InheritFloat( p_this, "scaletempo-overlap" );
p_sys->ms_search = var_InheritInteger( p_this, "scaletempo-search" );
msg_Dbg( p_this, "params: %i stride, %.3f overlap, %i search",
p_sys->ms_stride, p_sys->percent_overlap, p_sys->ms_search );
p_sys->buf_queue = NULL;
p_sys->buf_overlap = NULL;
p_sys->table_blend = NULL;
p_sys->buf_pre_corr = NULL;
p_sys->table_window = NULL;
p_sys->bytes_overlap = 0;
p_sys->bytes_queued = 0;
p_sys->bytes_to_slide = 0;
p_sys->frames_stride_error = 0;
if( reinit_buffers( p_filter ) != VLC_SUCCESS )
{
Close( p_this );
return VLC_EGENERIC;
}
p_filter->fmt_in.audio.i_format = VLC_CODEC_FL32;
aout_FormatPrepare(&p_filter->fmt_in.audio);
p_filter->fmt_out.audio = p_filter->fmt_in.audio;
p_filter->pf_audio_filter = DoWork;
return VLC_SUCCESS;
}
/*****************************************************************************
* Open: initialize as "audio filter"
*****************************************************************************/
static int Open( vlc_object_t *p_this )
{
filter_t *p_filter = (filter_t *)p_this;
filter_sys_t *p_sys;
bool b_fit = true;
if( p_filter->fmt_in.audio.i_format != VLC_CODEC_FL32 ||
p_filter->fmt_out.audio.i_format != VLC_CODEC_FL32 )
{
b_fit = false;
p_filter->fmt_in.audio.i_format = p_filter->fmt_out.audio.i_format = VLC_CODEC_FL32;
msg_Warn( p_filter, "bad input or output format" );
}
if( ! AOUT_FMTS_SIMILAR( &p_filter->fmt_in.audio, &p_filter->fmt_out.audio ) )
{
b_fit = false;
memcpy( &p_filter->fmt_out.audio, &p_filter->fmt_in.audio, sizeof(audio_sample_format_t) );
msg_Warn( p_filter, "input and output formats are not similar" );
}
if( ! b_fit )
return VLC_EGENERIC;
/* Allocate structure */
p_sys = p_filter->p_sys = malloc( sizeof(*p_sys) );
if( ! p_sys )
return VLC_ENOMEM;
p_filter->pf_audio_filter = DoWork;
p_sys->scale = 1.0;
p_sys->sample_rate = p_filter->fmt_in.audio.i_rate;
p_sys->samples_per_frame = aout_FormatNbChannels( &p_filter->fmt_in.audio );
p_sys->bytes_per_sample = 4;
p_sys->bytes_per_frame = p_sys->samples_per_frame * p_sys->bytes_per_sample;
msg_Dbg( p_this, "format: %5i rate, %i nch, %i bps, %s",
p_sys->sample_rate,
p_sys->samples_per_frame,
p_sys->bytes_per_sample,
"fl32" );
p_sys->ms_stride = var_InheritInteger( p_this, "scaletempo-stride" );
p_sys->percent_overlap = var_InheritFloat( p_this, "scaletempo-overlap" );
p_sys->ms_search = var_InheritInteger( p_this, "scaletempo-search" );
msg_Dbg( p_this, "params: %i stride, %.3f overlap, %i search",
p_sys->ms_stride, p_sys->percent_overlap, p_sys->ms_search );
p_sys->buf_queue = NULL;
p_sys->buf_overlap = NULL;
p_sys->table_blend = NULL;
p_sys->buf_pre_corr = NULL;
p_sys->table_window = NULL;
p_sys->bytes_overlap = 0;
p_sys->bytes_queued = 0;
p_sys->bytes_to_slide = 0;
p_sys->frames_stride_error = 0;
if( reinit_buffers( p_filter ) != VLC_SUCCESS )
{
Close( p_this );
return VLC_EGENERIC;
}
return VLC_SUCCESS;
}
