void bgav_audio_parser_init_dca(bgav_audio_parser_t * parser)
{
dca_t * priv = calloc(1, sizeof(*priv));
priv->state = dts_init(0);
parser->priv = priv;
parser->parse = parse_dca;
parser->cleanup = cleanup_dca;
parser->parse_frame = parse_frame_dca;
}
static GstStateChangeReturn
gst_dtsdec_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS;
GstDtsDec *dts = GST_DTSDEC (element);
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:{
GstDtsDecClass *klass;
klass = GST_DTSDEC_CLASS (G_OBJECT_GET_CLASS (dts));
dts->state = dts_init (klass->dts_cpuflags);
break;
}
case GST_STATE_CHANGE_READY_TO_PAUSED:
dts->samples = dts_samples (dts->state);
dts->bit_rate = -1;
dts->sample_rate = -1;
dts->stream_channels = 0;
/* FIXME force stereo for now */
dts->request_channels = DTS_CHANNEL;
dts->using_channels = 0;
dts->level = 1;
dts->bias = 0;
dts->current_ts = 0;
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
dts->samples = NULL;
if (dts->cache) {
gst_buffer_unref (dts->cache);
dts->cache = NULL;
}
break;
case GST_STATE_CHANGE_READY_TO_NULL:
dts_free (dts->state);
dts->state = NULL;
break;
default:
break;
}
return ret;
}
ADM_AudiocodecDCA::ADM_AudiocodecDCA( uint32_t fourcc, WAVHeader *info) : ADM_Audiocodec(fourcc)
{
int flags=0;
ADM_assert(fourcc==WAV_DTS);
dts_handle=NULL;
#if (defined( ARCH_X86) || defined(ARCH_X86_64))
#define CHK(x,y) if(CpuCaps::has##x()) flags|=MM_ACCEL_X86_##y;
CHK(MMX,MMX);
CHK(3DNOW,3DNOW);
CHK(MMXEXT,MMXEXT);
#endif
dts_handle=(void *)dts_init(flags);
if(!dts_handle)
{
printf("Cannot init libdca\n");
ADM_assert(0);
}
_wavHeader = info;
}
/*****************************************************************************
* Open:
*****************************************************************************/
static int Open( vlc_object_t *p_this, filter_sys_t *p_sys,
audio_format_t input, audio_format_t output )
{
p_sys->b_dynrng = config_GetInt( p_this, "dts-dynrng" );
p_sys->b_dontwarn = 0;
/* We'll do our own downmixing, thanks. */
p_sys->i_nb_channels = aout_FormatNbChannels( &output );
switch ( (output.i_physical_channels & AOUT_CHAN_PHYSMASK)
& ~AOUT_CHAN_LFE )
{
case AOUT_CHAN_CENTER:
if ( (output.i_original_channels & AOUT_CHAN_CENTER)
|| (output.i_original_channels
& (AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT)) )
{
p_sys->i_flags = DTS_MONO;
}
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT:
if ( output.i_original_channels & AOUT_CHAN_DOLBYSTEREO )
{
p_sys->i_flags = DTS_DOLBY;
}
else if ( input.i_original_channels == AOUT_CHAN_CENTER )
{
p_sys->i_flags = DTS_MONO;
}
else if ( input.i_original_channels & AOUT_CHAN_DUALMONO )
{
p_sys->i_flags = DTS_CHANNEL;
}
else
{
p_sys->i_flags = DTS_STEREO;
}
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER:
p_sys->i_flags = DTS_3F;
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_REARCENTER:
p_sys->i_flags = DTS_2F1R;
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
| AOUT_CHAN_REARCENTER:
p_sys->i_flags = DTS_3F1R;
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT:
p_sys->i_flags = DTS_2F2R;
break;
case AOUT_CHAN_LEFT | AOUT_CHAN_RIGHT | AOUT_CHAN_CENTER
| AOUT_CHAN_REARLEFT | AOUT_CHAN_REARRIGHT:
p_sys->i_flags = DTS_3F2R;
break;
default:
msg_Warn( p_this, "unknown sample format!" );
free( p_sys );
return -1;
}
if ( output.i_physical_channels & AOUT_CHAN_LFE )
{
p_sys->i_flags |= DTS_LFE;
}
//p_sys->i_flags |= DTS_ADJUST_LEVEL;
/* Initialize libdts */
p_sys->p_libdts = dts_init( 0 );
if( p_sys->p_libdts == NULL )
{
msg_Err( p_this, "unable to initialize libdts" );
return VLC_EGENERIC;
}
aout_CheckChannelReorder( pi_channels_in, pi_channels_out,
output.i_physical_channels & AOUT_CHAN_PHYSMASK,
p_sys->i_nb_channels,
p_sys->pi_chan_table );
return VLC_SUCCESS;
}
