diff options
Diffstat (limited to 'gst-libs/gst/audio/gstringbuffer.h')
| -rw-r--r-- | gst-libs/gst/audio/gstringbuffer.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/gst-libs/gst/audio/gstringbuffer.h b/gst-libs/gst/audio/gstringbuffer.h new file mode 100644 index 000000000..aaa379450 --- /dev/null +++ b/gst-libs/gst/audio/gstringbuffer.h @@ -0,0 +1,114 @@ +/* GStreamer + * Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu> + * 2005 Wim Taymans <wim@fluendo.com> + * + * gstrinbuffer.h: + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_RINGBUFFER_H__ +#define __GST_RINGBUFFER_H__ + +#include <gst/gst.h> + +G_BEGIN_DECLS + +#define GST_TYPE_RINGBUFFER (gst_ringbuffer_get_type()) +#define GST_RINGBUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RINGBUFFER,GstRingBuffer)) +#define GST_RINGBUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RINGBUFFER,GstRingBufferClass)) +#define GST_RINGBUFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RINGBUFFER, GstRingBufferClass)) +#define GST_IS_RINGBUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RINGBUFFER)) +#define GST_IS_RINGBUFFER_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RINGBUFFER)) + +typedef struct _GstRingBuffer GstRingBuffer; +typedef struct _GstRingBufferClass GstRingBufferClass; +typedef struct _GstRingBufferSpec GstRingBufferSpec; + +typedef void (*GstRingBufferCallback) (GstRingBuffer *rbuf, guint advance, gpointer data); + +typedef enum { + GST_RINGBUFFER_STATE_STOPPED, + GST_RINGBUFFER_STATE_PLAYING, +} GstRingBufferState; + +typedef enum { + GST_SEGSTATE_INVALID, + GST_SEGSTATE_EMPTY, + GST_SEGSTATE_FILLED, +} GstRingBufferSegState; + +struct _GstRingBufferSpec +{ + GstCaps *caps; + + guint segsize; + guint segtotal; +}; +#define GST_RINGBUFFER_GET_COND(buf) (((GstRingBuffer *)buf)->cond) +#define GST_RINGBUFFER_WAIT(buf) (g_cond_wait (GST_RINGBUFFER_GET_COND (buf), GST_GET_LOCK (buf))) +#define GST_RINGBUFFER_SIGNAL(buf) (g_cond_signal (GST_RINGBUFFER_GET_COND (buf))) + +struct _GstRingBuffer { + GstObject object; + + /*< public >*/ /* with LOCK */ + GCond *cond; + gboolean acquired; + GstRingBufferState state; + GstBuffer *data; + GstRingBufferSpec spec; + GstRingBufferSegState *segstate; + + gboolean waiters; + gint playseg; + gint writeseg; + gint segfilled; + + GstRingBufferCallback callback; + gpointer cb_data; +}; + +struct _GstRingBufferClass { + GstObjectClass parent_class; + + /*< public >*/ + gboolean (*acquire) (GstRingBuffer *buf, GstRingBufferSpec *spec); + gboolean (*release) (GstRingBuffer *buf); + + gboolean (*play) (GstRingBuffer *buf); + gboolean (*stop) (GstRingBuffer *buf); +}; + +GType gst_ringbuffer_get_type(void); + +void gst_ringbuffer_set_callback (GstRingBuffer *buf, GstRingBufferCallback cb, + gpointer data); + +gboolean gst_ringbuffer_acquire (GstRingBuffer *buf, GstRingBufferSpec *spec); +gboolean gst_ringbuffer_release (GstRingBuffer *buf); + +gboolean gst_ringbuffer_play (GstRingBuffer *buf); +gboolean gst_ringbuffer_stop (GstRingBuffer *buf); + +guint gst_ringbuffer_write (GstRingBuffer *buf, GstClockTime time, + guchar *data, guint len); + +void gst_ringbuffer_callback (GstRingBuffer *buf, guint advance); + +G_END_DECLS + +#endif /* __GST_RINGBUFFER_H__ */ |