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Original commit message from CVS: 2005-10-11 Julien MOUTTE <julien@moutte.net> * gst/base/gstcollectpads.c: (gst_collectpads_init), (gst_collectpads_add_pad), (gst_collectpads_pop), (gst_collectpads_event), (gst_collectpads_chain): * gst/base/gstcollectpads.h: Handle EOS correctly.
118 lines
4.2 KiB
C
118 lines
4.2 KiB
C
/* GStreamer
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* Copyright (C) 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstcollectpads.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., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_COLLECTPADS_H__
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#define __GST_COLLECTPADS_H__
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#include <gst/gst.h>
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G_BEGIN_DECLS
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#define GST_TYPE_COLLECTPADS (gst_collectpads_get_type())
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#define GST_COLLECTPADS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLLECTPADS,GstCollectPads))
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#define GST_COLLECTPADS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COLLECTPADS,GstCollectPadsClass))
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#define GST_COLLECTPADS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_COLLECTPADS, GstCollectPadsClass))
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#define GST_IS_COLLECTPADS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLLECTPADS))
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#define GST_IS_COLLECTPADS_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLLECTPADS))
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typedef struct _GstCollectPads GstCollectPads;
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typedef struct _GstCollectPadsClass GstCollectPadsClass;
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typedef struct _GstCollectData
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{
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GstCollectPads *collect;
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GstPad *pad;
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GstBuffer *buffer;
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guint pos;
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} GstCollectData;
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/* function will be called when all pads have data */
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typedef GstFlowReturn (*GstCollectPadsFunction) (GstCollectPads *pads, gpointer user_data);
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#define GST_COLLECTPADS_GET_COND(pads) (((GstCollectPads *)pads)->cond)
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#define GST_COLLECTPADS_WAIT(pads) (g_cond_wait (GST_COLLECTPADS_GET_COND (pads), GST_GET_LOCK (pads)))
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#define GST_COLLECTPADS_SIGNAL(pads) (g_cond_signal (GST_COLLECTPADS_GET_COND (pads)))
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#define GST_COLLECTPADS_BROADCAST(pads)(g_cond_broadcast (GST_COLLECTPADS_GET_COND (pads)))
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struct _GstCollectPads {
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GstObject object;
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/*< public >*/ /* with LOCK */
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GSList *data; /* GstCollectData in this collection */
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guint32 cookie;
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GCond *cond; /* to signal removal of data */
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/*< private >*/
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GstCollectPadsFunction func; /* function and user_data for callback */
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gpointer user_data;
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guint numpads; /* number of pads */
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guint queuedpads; /* number of pads with a buffer */
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guint eospads; /* number of pads that are EOS */
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gboolean started;
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gpointer _gst_reserved[GST_PADDING];
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};
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struct _GstCollectPadsClass {
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GstObjectClass parent_class;
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/*< private >*/
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gpointer _gst_reserved[GST_PADDING];
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};
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GType gst_collectpads_get_type(void);
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/* creating the object */
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GstCollectPads* gst_collectpads_new (void);
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/* set the callback */
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void gst_collectpads_set_function (GstCollectPads *pads, GstCollectPadsFunction func,
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gpointer user_data);
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/* pad management */
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GstCollectData* gst_collectpads_add_pad (GstCollectPads *pads, GstPad *pad, guint size);
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gboolean gst_collectpads_remove_pad (GstCollectPads *pads, GstPad *pad);
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gboolean gst_collectpads_is_active (GstCollectPads *pads, GstPad *pad);
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/* start/stop collection */
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GstFlowReturn gst_collectpads_collect (GstCollectPads *pads);
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GstFlowReturn gst_collectpads_collect_range (GstCollectPads *pads, guint64 offset, guint length);
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void gst_collectpads_start (GstCollectPads *pads);
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void gst_collectpads_stop (GstCollectPads *pads);
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/* get collected buffers */
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GstBuffer* gst_collectpads_peek (GstCollectPads *pads, GstCollectData *data);
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GstBuffer* gst_collectpads_pop (GstCollectPads *pads, GstCollectData *data);
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/* get collected bytes */
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guint gst_collectpads_available (GstCollectPads *pads);
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guint gst_collectpads_read (GstCollectPads *pads, GstCollectData *data,
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guint8 **bytes, guint size);
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guint gst_collectpads_flush (GstCollectPads *pads, GstCollectData *data,
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guint size);
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G_END_DECLS
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#endif /* __GST_COLLECTPADS_H__ */
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