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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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b6e891bbda
Re-work the dtsdec element code to unify it with changes made it a52dec, including support for reverse playback and dynamic channel negotiation on the source pad.
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* GStreamer DTS decoder plugin based on libdtsdec
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* Copyright (C) 2004 Ronald Bultje <rbultje@ronald.bitfreak.net>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_DTSDEC_H__
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#define __GST_DTSDEC_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_DTSDEC \
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(gst_dtsdec_get_type())
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#define GST_DTSDEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DTSDEC,GstDtsDec))
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#define GST_DTSDEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DTSDEC,GstDtsDecClass))
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#define GST_IS_DTSDEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DTSDEC))
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#define GST_IS_DTSDEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DTSDEC))
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typedef struct _GstDtsDec GstDtsDec;
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typedef struct _GstDtsDecClass GstDtsDecClass;
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struct _GstDtsDec {
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GstElement element;
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/* pads */
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GstPad *sinkpad;
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GstPad *srcpad;
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GstSegment segment;
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gboolean dvdmode;
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gboolean sent_segment;
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gboolean discont;
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gboolean flag_update;
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gboolean prev_flags;
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/* stream properties */
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gint bit_rate;
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gint sample_rate;
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gint stream_channels;
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gint request_channels;
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gint using_channels;
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/* decoding properties */
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sample_t level;
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sample_t bias;
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gboolean dynamic_range_compression;
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sample_t *samples;
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#ifndef DTS_OLD
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dca_state_t *state;
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#else
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dts_state_t *state;
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#endif
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/* Data left over from the previous buffer */
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GstBuffer *cache;
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GstClockTime time;
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/* reverse playback */
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GList *queued;
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};
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struct _GstDtsDecClass {
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GstElementClass parent_class;
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guint32 dts_cpuflags;
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};
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GType gst_dtsdec_get_type(void);
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G_END_DECLS
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#endif /* __GST_DTSDEC_H__ */
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