From 2a4e341b5db799eba7ddcabae2f89b5328f27c46 Mon Sep 17 00:00:00 2001 From: Olivier Crete Date: Sat, 29 Mar 2008 00:45:18 +0000 Subject: [MOVED FROM GST-P-FARSIGHT] Add liveadder element 20080329004518-3e2dc-40e4746fe82bbc5a871f03fe6ff6048f436c9f85.gz --- gst/liveadder/liveadder.h | 104 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 104 insertions(+) create mode 100644 gst/liveadder/liveadder.h (limited to 'gst/liveadder/liveadder.h') diff --git a/gst/liveadder/liveadder.h b/gst/liveadder/liveadder.h new file mode 100644 index 00000000..3cb36841 --- /dev/null +++ b/gst/liveadder/liveadder.h @@ -0,0 +1,104 @@ +/* + * Farsight Voice+Video library + * + * Copyright 2008 Collabora Ltd + * Copyright 2008 Nokia Corporation + * @author: Olivier Crete + * + * 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_LIVE_ADDER_H__ +#define __GST_LIVE_ADDER_H__ + +#include + +G_BEGIN_DECLS + +#define GST_TYPE_LIVE_ADDER (gst_live_adder_get_type()) +#define GST_LIVE_ADDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_LIVE_ADDER,GstLiveAdder)) +#define GST_IS_LIVE_ADDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_LIVE_ADDER)) +#define GST_LIVE_ADDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass) ,GST_TYPE_LIVE_ADDER,GstLiveAdderClass)) +#define GST_IS_LIVE_ADDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass) ,GST_TYPE_LIVE_ADDER)) +#define GST_LIVE_ADDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj) ,GST_TYPE_LIVE_ADDER,GstLiveAdderClass)) + +typedef struct _GstLiveAdder GstLiveAdder; +typedef struct _GstLiveAdderClass GstLiveAdderClass; + +typedef enum { + GST_LIVE_ADDER_FORMAT_UNSET, + GST_LIVE_ADDER_FORMAT_INT, + GST_LIVE_ADDER_FORMAT_FLOAT +} GstLiveAdderFormat; + +typedef void (*GstLiveAdderFunction) (gpointer out, gpointer in, guint size); + +/** + * GstLiveAdder: + * + * The adder object structure. + */ +struct _GstLiveAdder { + GstElement element; + + GstPad *srcpad; + /* pad counter, used for creating unique request pads */ + gint padcount; + GList *sinkpads; + + GstFlowReturn srcresult; + GstClockID clock_id; + + /* the queue is ordered head to tail */ + GQueue *buffers; + GCond *not_empty_cond; + + GstClockTime next_timestamp; + + /* the next are valid for both int and float */ + GstLiveAdderFormat format; + gint rate; + gint channels; + gint width; + gint endianness; + + /* the next are valid only for format == GST_LIVE_ADDER_FORMAT_INT */ + gint depth; + gboolean is_signed; + + /* number of bytes per sample, actually width/8 * channels */ + gint bps; + + /* function to add samples */ + GstLiveAdderFunction func; + + GstClockTime latency_ms; + GstClockTime peer_latency; +}; + +struct _GstLiveAdderClass { + GstElementClass parent_class; +}; + +GType gst_live_adder_get_type (void); + +G_END_DECLS + + +#endif /* __GST_LIVE_ADDER_H__ */ -- cgit v1.2.1