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ce372a2337
Original commit message from CVS: * ext/a52dec/gsta52dec.c: (gst_a52dec_mode_get_type), (gst_a52dec_class_init), (gst_a52dec_init), (gst_a52dec_channels), (gst_a52dec_handle_frame), (gst_a52dec_change_state), (gst_a52dec_set_property), (gst_a52dec_get_property): * ext/a52dec/gsta52dec.h: Patch from from Michal Benes <michal.benes@itonis.tv>: Add two things to a52dec: configure the exact output format for ac3 decoding through properties, if desired. By default, configure an output format preferred by downstream. Now that audioconvert lists caps by preference, this means that a52dec can do downmixing (iff required) rather than audioconvert, so it can use the ac3 downmix levels from the bitstream.
103 lines
2.4 KiB
C
103 lines
2.4 KiB
C
/* GStreamer
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* Copyright (C) <2001> David I. Lehn <dlehn@users.sourceforge.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_A52DEC_H__
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#define __GST_A52DEC_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_A52DEC \
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(gst_a52dec_get_type())
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#define GST_A52DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_A52DEC,GstA52Dec))
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#define GST_A52DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_A52DEC,GstA52DecClass))
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#define GST_IS_A52DEC(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_A52DEC))
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#define GST_IS_A52DEC_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_A52DEC))
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typedef struct _GstA52Dec GstA52Dec;
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typedef struct _GstA52DecClass GstA52DecClass;
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struct _GstA52Dec {
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GstElement element;
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/* pads */
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GstPad *sinkpad,
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*srcpad;
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gboolean dvdmode;
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gboolean sent_segment;
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int bit_rate;
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int sample_rate;
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int stream_channels;
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int request_channels;
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int using_channels;
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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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a52_state_t *state;
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GstBuffer *cache;
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GstClockTime time;
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};
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struct _GstA52DecClass {
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GstElementClass parent_class;
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guint32 a52_cpuflags;
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};
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GType gst_a52dec_get_type (void);
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#ifndef A52_MONO
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#define A52_MONO 1
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#endif
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#ifndef A52_STEREO
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#define A52_STEREO 2
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#endif
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#ifndef A52_3F
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#define A52_3F 3
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#endif
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#ifndef A52_2F1R
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#define A52_2F1R 4
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#endif
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#ifndef A52_3F1R
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#define A52_3F1R 5
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#endif
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#ifndef A52_2F2R
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#define A52_2F2R 6
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#endif
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#ifndef A52_3F2R
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#define A52_3F2R 7
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#endif
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#ifndef A52_DOLBY
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#define A52_DOLBY 10
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#endif
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G_END_DECLS
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#endif /* __GST_A52DEC_H__ */
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