mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 02:31:03 +00:00
113250d274
Original commit message from CVS: * gst/base/Makefile.am: * gst/base/gstbasesink.h: * gst/base/gstbasesrc.c: (gst_basesrc_init), (gst_basesrc_set_dataflow_funcs), (gst_basesrc_query): * gst/base/gstcollectpads.c: (gst_collectpads_get_type), (gst_collectpads_class_init), (gst_collectpads_init), (gst_collectpads_finalize), (gst_collectpads_new), (gst_collectpads_set_function), (gst_collectpads_add_pad), (find_pad), (gst_collectpads_remove_pad), (gst_collectpads_is_active), (gst_collectpads_collect), (gst_collectpads_collect_range), (gst_collectpads_start), (gst_collectpads_stop), (gst_collectpads_peek), (gst_collectpads_pop), (gst_collectpads_available), (gst_collectpads_read), (gst_collectpads_flush), (gst_collectpads_chain): * gst/base/gstcollectpads.h: * gst/elements/Makefile.am: * gst/elements/gstelements.c: * gst/elements/gstfakesink.c: (gst_fakesink_class_init), (gst_fakesink_get_times), (gst_fakesink_event), (gst_fakesink_preroll), (gst_fakesink_render): * gst/elements/gstfilesink.c: (gst_filesink_class_init), (gst_filesink_init), (gst_filesink_set_location), (gst_filesink_open_file), (gst_filesink_close_file), (gst_filesink_pad_query), (gst_filesink_event), (gst_filesink_render), (gst_filesink_change_state): * gst/elements/gstfilesink.h: Added object to help in making collect pad based elements. Ported filesink. Make event function in sink baseclass return gboolean.
132 lines
4.8 KiB
C
132 lines
4.8 KiB
C
/* GStreamer
|
|
* Copyright (C) 2005 Wim Taymans <wim@fluendo.com>
|
|
*
|
|
* gstcollectpads.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_COLLECTPADS_H__
|
|
#define __GST_COLLECTPADS_H__
|
|
|
|
#include <gst/gst.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_COLLECTPADS (gst_collectpads_get_type())
|
|
#define GST_COLLECTPADS(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_COLLECTPADS,GstCollectPads))
|
|
#define GST_COLLECTPADS_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_COLLECTPADS,GstCollectPadsClass))
|
|
#define GST_COLLECTPADS_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_COLLECTPADS, GstCollectPadsClass))
|
|
#define GST_IS_COLLECTPADS(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_COLLECTPADS))
|
|
#define GST_IS_COLLECTPADS_CLASS(obj) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_COLLECTPADS))
|
|
|
|
/* manages a set of pads that operate in collect mode. This means
|
|
* that control is given to the manager of this object when all
|
|
* pads have data.
|
|
*
|
|
* - pads are added to the collection with add/remove_pad. The pad
|
|
* has to be a sinkpad. The chain function of the pad is
|
|
* overridden. The element_private of the pad is used to store
|
|
* private information.
|
|
* - For each pad, data is queued in the chain function or by
|
|
* performing a pull_range.
|
|
* - When data is queued on all pads, a callback function is
|
|
* called.
|
|
* - Data can be dequeued from the pad with the _pop() method.
|
|
* One can _peek() at the data with the peek function.
|
|
* - Data can also be dequeued with the available/read/flush
|
|
* calls.
|
|
*/
|
|
|
|
typedef struct _GstCollectPads GstCollectPads;
|
|
typedef struct _GstCollectPadsClass GstCollectPadsClass;
|
|
|
|
typedef struct _GstCollectData
|
|
{
|
|
GstCollectPads *collect;
|
|
GstPad *pad;
|
|
GstBuffer *buffer;
|
|
guint pos;
|
|
gboolean eos;
|
|
} GstCollectData;
|
|
|
|
/* function will be called when all pads have data */
|
|
typedef GstFlowReturn (*GstCollectPadsFunction) (GstCollectPads *pads, gpointer user_data);
|
|
|
|
#define GST_COLLECTPADS_GET_COND(pads) (((GstCollectPads *)pads)->cond)
|
|
#define GST_COLLECTPADS_WAIT(pads) (g_cond_wait (GST_COLLECTPADS_GET_COND (pads), GST_GET_LOCK (pads)))
|
|
#define GST_COLLECTPADS_SIGNAL(pads) (g_cond_signal (GST_COLLECTPADS_GET_COND (pads)))
|
|
#define GST_COLLECTPADS_BROADCAST(pads)(g_cond_broadcast (GST_COLLECTPADS_GET_COND (pads)))
|
|
|
|
struct _GstCollectPads {
|
|
GstObject object;
|
|
|
|
/*< public >*/ /* with LOCK */
|
|
GSList *data; /* GstCollectData in this collection */
|
|
guint32 cookie;
|
|
|
|
GCond *cond; /* to signal removal of data */
|
|
|
|
/*< private >*/
|
|
GstCollectPadsFunction func; /* function and user_data for callback */
|
|
gpointer user_data;
|
|
|
|
guint numpads; /* number of pads */
|
|
guint queuedpads; /* number of pads with a buffer */
|
|
|
|
gboolean started;
|
|
};
|
|
|
|
struct _GstCollectPadsClass {
|
|
GstObjectClass parent_class;
|
|
|
|
};
|
|
|
|
GType gst_collectpads_get_type(void);
|
|
|
|
/* creating the object */
|
|
GstCollectPads* gst_collectpads_new (void);
|
|
|
|
/* set the callback */
|
|
void gst_collectpads_set_function (GstCollectPads *pads, GstCollectPadsFunction func,
|
|
gpointer user_data);
|
|
|
|
/* pad management */
|
|
GstCollectData* gst_collectpads_add_pad (GstCollectPads *pads, GstPad *pad, guint size);
|
|
gboolean gst_collectpads_remove_pad (GstCollectPads *pads, GstPad *pad);
|
|
gboolean gst_collectpads_is_active (GstCollectPads *pads, GstPad *pad);
|
|
|
|
/* start/stop collection */
|
|
GstFlowReturn gst_collectpads_collect (GstCollectPads *pads);
|
|
GstFlowReturn gst_collectpads_collect_range (GstCollectPads *pads, guint64 offset, guint length);
|
|
|
|
void gst_collectpads_start (GstCollectPads *pads);
|
|
void gst_collectpads_stop (GstCollectPads *pads);
|
|
|
|
/* get collected buffers */
|
|
GstBuffer* gst_collectpads_peek (GstCollectPads *pads, GstCollectData *data);
|
|
GstBuffer* gst_collectpads_pop (GstCollectPads *pads, GstCollectData *data);
|
|
|
|
/* get collected bytes */
|
|
guint gst_collectpads_available (GstCollectPads *pads);
|
|
guint gst_collectpads_read (GstCollectPads *pads, GstCollectData *data,
|
|
guint8 **bytes, guint size);
|
|
guint gst_collectpads_flush (GstCollectPads *pads, GstCollectData *data,
|
|
guint size);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_COLLECTPADS_H__ */
|