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113 lines
3.3 KiB
C
113 lines
3.3 KiB
C
/* GStreamer
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* Copyright (C) 2003 Martin Soto <martinsoto@users.sourceforge.net>
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*
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* dxr3audiosink.h: Audio sink for em8300 based DVD cards.
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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 __DXR3AUDIOSINK_H__
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#define __DXR3AUDIOSINK_H__
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#include <gst/gst.h>
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#include "ac3_padder.h"
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G_BEGIN_DECLS
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#define GST_TYPE_DXR3AUDIOSINK \
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(dxr3audiosink_get_type())
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#define DXR3AUDIOSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_DXR3AUDIOSINK,Dxr3AudioSink))
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#define DXR3AUDIOSINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_DXR3AUDIOSINK,Dxr3AudioSinkClass))
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#define GST_IS_DXR3AUDIOSINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_DXR3AUDIOSINK))
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#define GST_IS_DXR3AUDIOSINK_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_DXR3AUDIOSINK))
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typedef struct _Dxr3AudioSink Dxr3AudioSink;
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typedef struct _Dxr3AudioSinkClass Dxr3AudioSinkClass;
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typedef enum {
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DXR3AUDIOSINK_OPEN = (GST_ELEMENT_FLAG_LAST << 0),
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DXR3AUDIOSINK_FLAG_LAST = (GST_ELEMENT_FLAG_LAST << 2),
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} Dxr3AudioSinkFlags;
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/* PCM or AC3? */
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typedef enum {
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DXR3AUDIOSINK_MODE_NONE, /* No mode set. */
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DXR3AUDIOSINK_MODE_AC3, /* AC3 out. */
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DXR3AUDIOSINK_MODE_PCM, /* PCM out. */
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} Dxr3AudioSinkMode;
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/* Information for a delayed SCR set operation. */
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typedef struct {
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struct _Dxr3AudioSink *sink;
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guint32 scr;
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} Dxr3AudioSinkDelayedSCR;
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struct _Dxr3AudioSink {
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GstElement element;
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GstPad *pcm_sinkpad; /* The AC3 audio sink pad. */
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GstPad *ac3_sinkpad; /* The PCM audio sink pad. */
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int card_number; /* The number of the card to open. */
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gchar *audio_filename; /* File name for the audio device. */
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int audio_fd; /* File descriptor for the audio device. */
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gchar *control_filename; /* File name for the control device. */
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int control_fd; /* File descriptor for the control
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device. */
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guint64 scr; /* The current System Reference Clock value
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for the audio stream. */
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gboolean digital_pcm; /* Should PCM use the digital or the
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analog output? */
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Dxr3AudioSinkMode mode; /* The current sound output mode. */
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gint rate; /* The sampling rate for PCM sound. */
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ac3_padder *padder; /* AC3 to SPDIF padder object. */
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GstClock *clock; /* The clock for this element. */
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};
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struct _Dxr3AudioSinkClass {
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GstElementClass parent_class;
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/* signals */
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void (*flushed) (Dxr3AudioSink *sink);
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};
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extern GType dxr3audiosink_get_type (void);
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extern gboolean dxr3audiosink_factory_init (GstPlugin *plugin);
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G_END_DECLS
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#endif /* __DXR3AUDIOINK_H__ */
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