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371e3e460a
We need different export decorators for the different libs. For now no actual change though, just rename before the release, and add prelude headers to define the new decorator to GST_EXPORT.
110 lines
3.7 KiB
C
110 lines
3.7 KiB
C
/* GStreamer
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* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
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* 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstaudiosink.h:
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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., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef __GST_AUDIO_AUDIO_H__
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#include <gst/audio/audio.h>
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#endif
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#ifndef __GST_AUDIO_SINK_H__
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#define __GST_AUDIO_SINK_H__
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#include <gst/gst.h>
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#include <gst/audio/gstaudiobasesink.h>
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G_BEGIN_DECLS
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#define GST_TYPE_AUDIO_SINK (gst_audio_sink_get_type())
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#define GST_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_AUDIO_SINK,GstAudioSink))
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#define GST_AUDIO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
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#define GST_AUDIO_SINK_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),GST_TYPE_AUDIO_SINK,GstAudioSinkClass))
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#define GST_IS_AUDIO_SINK(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_AUDIO_SINK))
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#define GST_IS_AUDIO_SINK_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_AUDIO_SINK))
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typedef struct _GstAudioSink GstAudioSink;
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typedef struct _GstAudioSinkClass GstAudioSinkClass;
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/**
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* GstAudioSink:
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*
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* Opaque #GstAudioSink.
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*/
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struct _GstAudioSink {
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GstAudioBaseSink element;
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/*< private >*/ /* with LOCK */
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GThread *thread;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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/**
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* GstAudioSinkClass:
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* @parent_class: the parent class structure.
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* @open: Open the device. No configuration needs to be done at this point.
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* This function is also used to check if the device is available.
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* @prepare: Prepare the device to operate with the specified parameters.
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* @unprepare: Undo operations done in prepare.
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* @close: Close the device.
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* @write: Write data to the device.
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* @delay: Return how many frames are still in the device. This is used to
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* drive the synchronisation.
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* @reset: Returns as quickly as possible from a write and flush any pending
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* samples from the device.
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*
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* #GstAudioSink class. Override the vmethods to implement functionality.
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*/
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struct _GstAudioSinkClass {
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GstAudioBaseSinkClass parent_class;
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/* vtable */
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/* open the device with given specs */
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gboolean (*open) (GstAudioSink *sink);
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/* prepare resources and state to operate with the given specs */
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gboolean (*prepare) (GstAudioSink *sink, GstAudioRingBufferSpec *spec);
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/* undo anything that was done in prepare() */
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gboolean (*unprepare) (GstAudioSink *sink);
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/* close the device */
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gboolean (*close) (GstAudioSink *sink);
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/* write samples to the device */
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gint (*write) (GstAudioSink *sink, gpointer data, guint length);
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/* get number of frames queued in the device */
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guint (*delay) (GstAudioSink *sink);
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/* reset the audio device, unblock from a write */
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void (*reset) (GstAudioSink *sink);
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GST_AUDIO_API
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GType gst_audio_sink_get_type(void);
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#ifdef G_DEFINE_AUTOPTR_CLEANUP_FUNC
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G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstAudioSink, gst_object_unref)
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#endif
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G_END_DECLS
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#endif /* __GST_AUDIO_SINK_H__ */
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