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ac7cad431c
This adds support for various compressed formats (AC3, E-AC3, DTS and MP3) payloaded in IEC 61937 format (used for transmission over S/PDIF, HDMI and Bluetooth). The acceptcaps() function allows bins to probe for what formats the sink being connected to support. This only works after the element is set to at least READY. If the underlying sink changes and the format we are streaming is not available, we emit a message that will allow upstream elements/bins to block and renegotiate a new format.
93 lines
2.3 KiB
C
93 lines
2.3 KiB
C
/*-*- Mode: C; c-basic-offset: 2 -*-*/
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/*
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* GStreamer pulseaudio plugin
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*
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* Copyright (c) 2004-2008 Lennart Poettering
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*
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* gst-pulse is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as
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* published by the Free Software Foundation; either version 2.1 of the
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* License, or (at your option) any later version.
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*
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* gst-pulse is distributed in the hope that it will be useful, but
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* 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with gst-pulse; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA.
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*/
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#ifndef __GST_PULSESINK_H__
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#define __GST_PULSESINK_H__
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#include <gst/gst.h>
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#include <gst/audio/gstaudiosink.h>
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#include <pulse/pulseaudio.h>
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#include <pulse/thread-mainloop.h>
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#include "pulseprobe.h"
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G_BEGIN_DECLS
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#define GST_TYPE_PULSESINK \
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(gst_pulsesink_get_type())
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#define GST_PULSESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_PULSESINK,GstPulseSink))
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#define GST_PULSESINK_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_PULSESINK,GstPulseSinkClass))
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#define GST_IS_PULSESINK(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_PULSESINK))
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#define GST_IS_PULSESINK_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_PULSESINK))
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#define GST_PULSESINK_CAST(obj) \
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((GstPulseSink *)(obj))
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typedef struct _GstPulseSink GstPulseSink;
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typedef struct _GstPulseSinkClass GstPulseSinkClass;
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struct _GstPulseSink
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{
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GstBaseAudioSink sink;
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gchar *server, *device, *stream_name, *client_name;
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gchar *device_description;
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GstPulseProbe *probe;
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gdouble volume;
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gboolean volume_set:1;
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gboolean mute:1;
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gboolean mute_set:1;
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guint defer_pending;
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gint notify; /* atomic */
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const gchar *pa_version;
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GstStructure *properties;
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pa_proplist *proplist;
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#ifdef HAVE_PULSE_1_0
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GMutex *sink_formats_lock;
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GList *sink_formats;
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volatile gint format_lost;
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GstClockTime format_lost_time;
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#endif
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};
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struct _GstPulseSinkClass
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{
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GstBaseAudioSinkClass parent_class;
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};
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GType gst_pulsesink_get_type (void);
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G_END_DECLS
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#endif /* __GST_PULSESINK_H__ */
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