1 /* GStreamer DTS decoder plugin based on libdtsdec 2 * Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 17 * Boston, MA 02110-1301, USA. 18 */ 19 20 21 #ifndef __GST_DTSDEC_H__ 22 #define __GST_DTSDEC_H__ 23 24 #include <gst/gst.h> 25 #include <gst/audio/gstaudiodecoder.h> 26 27 G_BEGIN_DECLS 28 29 #define GST_TYPE_DTSDEC \ 30 (gst_dtsdec_get_type()) 31 #define GST_DTSDEC(obj) \ 32 (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DTSDEC,GstDtsDec)) 33 #define GST_DTSDEC_CLASS(klass) \ 34 (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DTSDEC,GstDtsDecClass)) 35 #define GST_IS_DTSDEC(obj) \ 36 (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DTSDEC)) 37 #define GST_IS_DTSDEC_CLASS(klass) \ 38 (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DTSDEC)) 39 40 typedef struct _GstDtsDec GstDtsDec; 41 typedef struct _GstDtsDecClass GstDtsDecClass; 42 43 struct _GstDtsDec { 44 GstAudioDecoder element; 45 46 GstPadChainFunction base_chain; 47 48 gboolean dvdmode; 49 gboolean flag_update; 50 gboolean prev_flags; 51 52 /* stream properties */ 53 gint bit_rate; 54 gint sample_rate; 55 gint stream_channels; 56 gint request_channels; 57 gint using_channels; 58 59 gint channel_reorder_map[6]; 60 61 /* decoding properties */ 62 sample_t level; 63 sample_t bias; 64 gboolean dynamic_range_compression; 65 sample_t *samples; 66 #ifndef DTS_OLD 67 dca_state_t *state; 68 #else 69 dts_state_t *state; 70 #endif 71 }; 72 73 struct _GstDtsDecClass { 74 GstAudioDecoderClass parent_class; 75 76 guint32 dts_cpuflags; 77 }; 78 79 GType gst_dtsdec_get_type(void); 80 81 G_END_DECLS 82 83 #endif /* __GST_DTSDEC_H__ */ 84