mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-24 15:28:22 +00:00
e37b6081ed
Original commit message from CVS: * configure.ac: * gst/aacparse/Makefile.am: * gst/aacparse/gstaacparse.c: * gst/aacparse/gstaacparse.h: * gst/aacparse/gstbaseparse.c: * gst/aacparse/gstbaseparse.h: * gst/amrparse/Makefile.am: * gst/amrparse/gstamrparse.c: * gst/amrparse/gstamrparse.h: * gst/amrparse/gstbaseparse.c: * gst/amrparse/gstbaseparse.h: Add two new baseparse based parsers (aac and amr) from Bug #518857.
238 lines
7.9 KiB
C
238 lines
7.9 KiB
C
/* GStreamer
|
|
* Copyright (C) 2008 Nokia Corporation. All rights reserved.
|
|
*
|
|
* Contact: Stefan Kost <stefan.kost@nokia.com>
|
|
*
|
|
* 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_BASE_PARSE_H__
|
|
#define __GST_BASE_PARSE_H__
|
|
|
|
#include <gst/gst.h>
|
|
#include <gst/base/gstadapter.h>
|
|
|
|
G_BEGIN_DECLS
|
|
|
|
#define GST_TYPE_BASE_PARSE (gst_base_parse_get_type())
|
|
#define GST_BASE_PARSE(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_BASE_PARSE,GstBaseParse))
|
|
#define GST_BASE_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_BASE_PARSE,GstBaseParseClass))
|
|
#define GST_BASE_PARSE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_BASE_PARSE,GstBaseParseClass))
|
|
#define GST_IS_BASE_PARSE(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_BASE_PARSE))
|
|
#define GST_IS_BASE_PARSE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_BASE_PARSE))
|
|
#define GST_BASE_PARSE_CAST(obj) ((GstBaseParse *)(obj))
|
|
|
|
/**
|
|
* GST_BASE_PARSE_SINK_NAME:
|
|
*
|
|
* the name of the templates for the sink pad
|
|
*/
|
|
#define GST_BASE_PARSE_SINK_NAME "sink"
|
|
/**
|
|
* GST_BASE_PARSE_SRC_NAME:
|
|
*
|
|
* the name of the templates for the source pad
|
|
*/
|
|
#define GST_BASE_PARSE_SRC_NAME "src"
|
|
|
|
/**
|
|
* GST_BASE_PARSE_SRC_PAD:
|
|
* @obj: base parse instance
|
|
*
|
|
* Gives the pointer to the source #GstPad object of the element.
|
|
*
|
|
* Since: 0.10.x
|
|
*/
|
|
#define GST_BASE_PARSE_SRC_PAD(obj) (GST_BASE_PARSE_CAST (obj)->srcpad)
|
|
|
|
/**
|
|
* GST_BASE_PARSE_SINK_PAD:
|
|
* @obj: base parse instance
|
|
*
|
|
* Gives the pointer to the sink #GstPad object of the element.
|
|
*
|
|
* Since: 0.10.x
|
|
*/
|
|
#define GST_BASE_PARSE_SINK_PAD(obj) (GST_BASE_PARSE_CAST (obj)->sinkpad)
|
|
|
|
/**
|
|
* GST_BASE_PARSE_FLOW_DROPPED:
|
|
*
|
|
* A #GstFlowReturn that can be returned from parse_frame to
|
|
* indicate that no output buffer was generated.
|
|
*
|
|
* Since: 0.10.x
|
|
*/
|
|
#define GST_BASE_PARSE_FLOW_DROPPED GST_FLOW_CUSTOM_SUCCESS
|
|
|
|
/**
|
|
* GST_BASE_PARSE_LOCK:
|
|
* @obj: base parse instance
|
|
*
|
|
* Obtain a lock to protect the parse function from concurrent access.
|
|
*
|
|
* Since: 0.10.x
|
|
*/
|
|
#define GST_BASE_PARSE_LOCK(obj) g_mutex_lock (GST_BASE_PARSE_CAST (obj)->parse_lock)
|
|
|
|
/**
|
|
* GST_BASE_PARSE_UNLOCK:
|
|
* @obj: base parse instance
|
|
*
|
|
* Release the lock that protects the parse function from concurrent access.
|
|
*
|
|
* Since: 0.10.x
|
|
*/
|
|
#define GST_BASE_PARSE_UNLOCK(obj) g_mutex_unlock (GST_BASE_PARSE_CAST (obj)->parse_lock)
|
|
|
|
typedef struct _GstBaseParse GstBaseParse;
|
|
typedef struct _GstBaseParseClass GstBaseParseClass;
|
|
typedef struct _GstBaseParsePrivate GstBaseParsePrivate;
|
|
typedef struct _GstBaseParseClassPrivate GstBaseParseClassPrivate;
|
|
|
|
/**
|
|
* GstBaseParse:
|
|
* @element: the parent element.
|
|
*
|
|
* The opaque #GstBaseParse data structure.
|
|
*/
|
|
struct _GstBaseParse {
|
|
GstElement element;
|
|
GstAdapter *adapter;
|
|
|
|
/*< protected >*/
|
|
/* source and sink pads */
|
|
GstPad *sinkpad;
|
|
GstPad *srcpad;
|
|
|
|
/* MT-protected (with STREAM_LOCK) */
|
|
GstSegment segment;
|
|
|
|
/* Newsegment event to be sent after SEEK */
|
|
GstEvent *pending_segment;
|
|
|
|
/* Segment event that closes the running segment prior to SEEK */
|
|
GstEvent *close_segment;
|
|
|
|
/* Caps nego done already? */
|
|
gboolean negotiated;
|
|
|
|
GMutex *parse_lock;
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING_LARGE];
|
|
GstBaseParsePrivate *priv;
|
|
};
|
|
|
|
/**
|
|
* GstBaseParseClass:
|
|
* @start: Optional.
|
|
* Called when the element starts processing.
|
|
* Allows opening external resources.
|
|
* @stop: Optional.
|
|
* Called when the element stops processing.
|
|
* Allows closing external resources.
|
|
* @set_sink_caps: allows the subclass to be notified of the actual caps set.
|
|
* @check_valid_frame: Check if the given piece of data contains a valid
|
|
* frame.
|
|
* @parse_frame: Parse the already checked frame. Subclass need to
|
|
* set the buffer timestamp, duration, caps and possibly
|
|
* other necessary metadata. This is called with srcpad's
|
|
* STREAM_LOCK held.
|
|
* @convert: Optional.
|
|
* Convert between formats.
|
|
* @find_frame: Optional.
|
|
* Finds a frame. Gets a position passed and should return
|
|
* TRUE and the offset in bytes where this position is.
|
|
* Will only be called in pull mode and the subclass can pull
|
|
* whatever it wants from upstream. If not implemented,
|
|
* the base class will implement it by calling
|
|
* @check_valid_frame and @parse_frame to find the wanted
|
|
* frame and build a seek table.
|
|
* @event: Optional.
|
|
* Event handler on the sink pad. This function should return
|
|
* TRUE if the event was handled and can be dropped.
|
|
* @src_event: Optional.
|
|
* Event handler on the source pad. Should return TRUE
|
|
* if the event was handled and can be dropped.
|
|
* @is_seekable: Optional.
|
|
* Subclass can override this if it wants to control the
|
|
* seekability of the stream. Otherwise the element assumes
|
|
* that stream is always seekable.
|
|
*
|
|
* Subclasses can override any of the available virtual methods or not, as
|
|
* needed. At minimum @check_valid_frame and @parse_frame needs to be
|
|
* overridden.
|
|
*/
|
|
struct _GstBaseParseClass {
|
|
GstElementClass parent_class;
|
|
|
|
/*< public >*/
|
|
/* virtual methods for subclasses */
|
|
|
|
gboolean (*start) (GstBaseParse *parse);
|
|
|
|
gboolean (*stop) (GstBaseParse *parse);
|
|
|
|
gboolean (*set_sink_caps) (GstBaseParse *parse,
|
|
GstCaps *caps);
|
|
|
|
gboolean (*check_valid_frame) (GstBaseParse *parse,
|
|
GstBuffer *buffer,
|
|
guint *framesize,
|
|
gint *skipsize);
|
|
|
|
GstFlowReturn (*parse_frame) (GstBaseParse *parse,
|
|
GstBuffer *buffer);
|
|
|
|
gboolean (*convert) (GstBaseParse * parse,
|
|
GstFormat src_format,
|
|
gint64 src_value,
|
|
GstFormat dest_format,
|
|
gint64 * dest_value);
|
|
|
|
gboolean (*find_frame) (GstBaseParse *parse,
|
|
GstFormat src_format,
|
|
gint64 src_value,
|
|
gint64 * dest_value);
|
|
|
|
gboolean (*event) (GstBaseParse *parse,
|
|
GstEvent *event);
|
|
|
|
gboolean (*src_event) (GstBaseParse *parse,
|
|
GstEvent *event);
|
|
|
|
gboolean (*is_seekable) (GstBaseParse *parse);
|
|
|
|
/*< private >*/
|
|
gpointer _gst_reserved[GST_PADDING_LARGE];
|
|
GstBaseParseClassPrivate *priv;
|
|
};
|
|
|
|
GType gst_base_parse_get_type (void);
|
|
|
|
|
|
void gst_base_parse_set_duration (GstBaseParse *parse,
|
|
GstFormat fmt,
|
|
gint64 duration);
|
|
|
|
void gst_base_parse_set_min_frame_size (GstBaseParse *parse,
|
|
guint min_size);
|
|
|
|
G_END_DECLS
|
|
|
|
#endif /* __GST_BASE_PARSE_H__ */
|