Commit 9469aa92 authored by David Schleef's avatar David Schleef Committed by Tim-Philipp Müller
Browse files

baseparse: Create baseparse library

parent f3f44f81
......@@ -3,10 +3,13 @@ plugin_LTLIBRARIES = libgstaudioparsersbad.la
libgstaudioparsersbad_la_SOURCES = \
gstaacparse.c gstamrparse.c gstac3parse.c \
gstdcaparse.c gstflacparse.c gstmpegaudioparse.c \
gstbaseparse.c plugin.c
plugin.c
libgstaudioparsersbad_la_CFLAGS = $(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS)
libgstaudioparsersbad_la_CFLAGS = \
-I$(top_srcdir)/gst-libs \
$(GST_PLUGINS_BASE_CFLAGS) $(GST_BASE_CFLAGS) $(GST_CFLAGS)
libgstaudioparsersbad_la_LIBADD = \
$(top_builddir)/gst-libs/gst/baseparse/libgstbaseparse-$(GST_MAJORMINOR).la \
$(GST_PLUGINS_BASE_LIBS) -lgsttag-$(GST_MAJORMINOR) \
-lgstaudio-$(GST_MAJORMINOR) \
$(GST_BASE_LIBS) $(GST_LIBS)
......@@ -14,5 +17,4 @@ libgstaudioparsersbad_la_LDFLAGS = $(PACKAGE_LIBS) $(GST_PLUGIN_LDFLAGS)
libgstaudioparsersbad_la_LIBTOOLFLAGS = --tag=disable-static
noinst_HEADERS = gstaacparse.h gstamrparse.h gstac3parse.h \
gstdcaparse.h gstflacparse.h gstmpegaudioparse.h \
gstbaseparse.h
gstdcaparse.h gstflacparse.h gstmpegaudioparse.h
......@@ -23,7 +23,7 @@
#define __GST_AACPARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
......@@ -24,7 +24,7 @@
#define __GST_AC3_PARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
......@@ -24,7 +24,7 @@
#define __GST_AMRPARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
This diff is collapsed.
/* 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_SEGMENT:
* @obj: base parse instance
*
* Gives the segment of the element.
*
* Since: 0.10.x
*/
#define GST_BASE_PARSE_SEGMENT(obj) (GST_BASE_PARSE_CAST (obj)->segment)
/**
* GST_BASE_PARSE_FLOW_DROPPED:
*
* A #GstFlowReturn that can be returned from parse_frame to
* indicate that no output buffer was generated, or from pre_push_buffer to
* to forego pushing buffer.
*
* Since: 0.10.x
*/
#define GST_BASE_PARSE_FLOW_DROPPED GST_FLOW_CUSTOM_SUCCESS
/**
* GstBaseParseFrameFlags:
* @GST_BASE_PARSE_FRAME_FLAG_NONE: no flag
* @GST_BASE_PARSE_FRAME_FLAG_SYNC: indicates if parsing is 'in sync'
* @GST_BASE_PARSE_FRAME_FLAG_DRAIN: indicates if parser is 'draining'.
* That is, leftover data (e.g. in FLUSH or EOS situation) is being parsed.
* @GST_BASE_PARSE_FRAME_FLAG_NO_FRAME: set to indicate this buffer should not be
* counted as frame, e.g. if this frame is dependent on a previous one.
* As it is not counted as a frame, bitrate increases but frame to time
* conversions are maintained.
* @GST_BASE_PARSE_FRAME_FLAG_CLIP: @pre_push_buffer can set this to indicate
* that regular segment clipping can still be performed (as opposed to
* any custom one having been done).
*
* Flags to be used in a #GstBaseParseFrame.
*
* Since: 0.10.x
*/
typedef enum {
GST_BASE_PARSE_FRAME_FLAG_NONE = 0,
GST_BASE_PARSE_FRAME_FLAG_SYNC = (1 << 0),
GST_BASE_PARSE_FRAME_FLAG_DRAIN = (1 << 1),
GST_BASE_PARSE_FRAME_FLAG_NO_FRAME = (1 << 2),
GST_BASE_PARSE_FRAME_FLAG_CLIP = (1 << 3)
} GstBaseParseFrameFlags;
/**
* GstBaseParseFrame:
* @buffer: data to check for valid frame or parsed frame.
* Subclass is allowed to replace this buffer.
* @overhead: subclass can set this to indicates the metadata overhead
* for the given frame, which is then used to enable more accurate bitrate
* computations. If this is -1, it is assumed that this frame should be
* skipped in bitrate calculation.
* @flags: a combination of input and output #GstBaseParseFrameFlags that
* convey additional context to subclass or allow subclass to tune
* subsequent #GstBaseParse actions.
*
* Frame (context) data passed to each frame parsing virtual methods. In
* addition to providing the data to be checked for a valid frame or an already
* identified frame, it conveys additional metadata or control information
* from and to the subclass w.r.t. the particular frame in question (rather
* than global parameters). Some of these may apply to each parsing stage, others
* only to some a particular one. These parameters are effectively zeroed at start
* of each frame's processing, i.e. parsing virtual method invocation sequence.
*
* Since: 0.10.x
*/
typedef struct {
GstBuffer *buffer;
guint flags;
gint overhead;
} GstBaseParseFrame;
/**
* GST_BASE_PARSE_FRAME_SYNC:
* @frame: base parse frame instance
*
* Obtains current sync status indicated in frame.
*
* Since: 0.10.x
*/
#define GST_BASE_PARSE_FRAME_SYNC(frame) (!!(frame->flags & GST_BASE_PARSE_FRAME_FLAG_SYNC))
/**
* GST_BASE_PARSE_FRAME_DRAIN:
* @frame: base parse frame instance
*
* Obtains current drain status indicated in frame.
*
* Since: 0.10.x
*/
#define GST_BASE_PARSE_FRAME_DRAIN(frame) (!!(frame->flags & GST_BASE_PARSE_FRAME_FLAG_DRAIN))
/**
* GstBaseParseFormat:
* @GST_BASE_PARSE_FORMAT_NONE: default setting
* @GST_BASE_PARSE_FORMAT_PASSTHROUGH: nature of format or configuration
* does not allow (much) parsing, so parser should operate in passthrough mode
* (which only applies operating in pull mode). That is, incoming buffers
* are pushed through unmodified, i.e. no @check_valid_frame or @parse_frame
* callbacks will be invoked. On the other hand, @pre_push_buffer is still invoked,
* where subclass can perform as much or as little is appropriate for
* "passthrough" semantics.
* @GST_BASE_PARSE_FORMAT_HAS_TIME: frames carry timing info which subclass
* can (generally) parse and provide. In particular, intrinsic time
* (rather than estimated) can be obtained following seek.
*
* Since: 0.10.x
*/
typedef enum _GstBaseParseFormat {
GST_BASE_PARSE_FORMAT_NONE = 0,
GST_BASE_PARSE_FORMAT_PASSTHROUGH = (1 << 0),
GST_BASE_PARSE_FORMAT_HAS_TIME = (1 << 1),
} GstBaseParseFormat;
/**
* GstBaseParseSeekable:
* @GST_BASE_PARSE_SEEK_NONE: No seeking possible.
* @GST_BASE_PARSE_SEEK_DEFAULT: Default seeking possible using estimated bitrate.
* @GST_BASE_PARSE_SEEK_TABLE: Additional metadata provides more accurate seeking.
*
* Indicates what level (of quality) of seeking is possible.
*
* Since: 0.10.x
*/
typedef enum _GstBaseParseSeekable {
GST_BASE_PARSE_SEEK_NONE,
GST_BASE_PARSE_SEEK_DEFAULT,
GST_BASE_PARSE_SEEK_TABLE
} GstBaseParseSeekable;
typedef struct _GstBaseParse GstBaseParse;
typedef struct _GstBaseParseClass GstBaseParseClass;
typedef struct _GstBaseParsePrivate GstBaseParsePrivate;
/**
* 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;
/*< 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.
*
* @get_frame_overhead: Finds the metadata overhead for the given frame. This
* is used to enable more accurate bitrate computations.
* If NULL, the per-frame overhead is assumed to be 0. If
* this returns -1, it is assumed that this frame should
* be skipped in bitrate calculation.
*
* @pre_push_buffer: Optional.
* Called just prior to pushing a frame (after any pending
* events have been sent) to give subclass a chance to perform
* additional actions at this time (e.g. tag sending) or to
* decide whether this buffer should be dropped or not
* (e.g. custom segment clipping).
*
* 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,
GstBaseParseFrame *frame,
guint *framesize,
gint *skipsize);
GstFlowReturn (*parse_frame) (GstBaseParse *parse,
GstBaseParseFrame *frame);
GstFlowReturn (*pre_push_frame) (GstBaseParse *parse,
GstBaseParseFrame *frame);
gboolean (*convert) (GstBaseParse * parse,
GstFormat src_format,
gint64 src_value,
GstFormat dest_format,
gint64 * dest_value);
gboolean (*event) (GstBaseParse *parse,
GstEvent *event);
gboolean (*src_event) (GstBaseParse *parse,
GstEvent *event);
/*< private >*/
gpointer _gst_reserved[GST_PADDING_LARGE];
};
GType gst_base_parse_get_type (void);
void gst_base_parse_frame_init (GstBaseParse * parse,
GstBaseParseFrame * frame);
GstFlowReturn gst_base_parse_push_frame (GstBaseParse *parse,
GstBaseParseFrame *frame);
void gst_base_parse_set_duration (GstBaseParse *parse,
GstFormat fmt, gint64 duration,
gint interval);
void gst_base_parse_set_seek (GstBaseParse * parse,
GstBaseParseSeekable seek,
guint bitrate);
void gst_base_parse_set_min_frame_size (GstBaseParse *parse,
guint min_size);
void gst_base_parse_set_format (GstBaseParse * parse,
GstBaseParseFormat flag,
gboolean on);
void gst_base_parse_set_frame_props (GstBaseParse * parse,
guint fps_num, guint fps_den,
guint lead_in, guint lead_out);
gboolean gst_base_parse_convert_default (GstBaseParse * parse,
GstFormat src_format, gint64 src_value,
GstFormat dest_format, gint64 * dest_value);
gboolean gst_base_parse_add_index_entry (GstBaseParse * parse,
guint64 offset, GstClockTime ts,
gboolean key, gboolean force);
G_END_DECLS
#endif /* __GST_BASE_PARSE_H__ */
......@@ -21,7 +21,7 @@
#define __GST_DCA_PARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
......@@ -25,7 +25,7 @@
#define __GST_FLAC_PARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
......@@ -24,7 +24,7 @@
#define __GST_MPEG_AUDIO_PARSE_H__
#include <gst/gst.h>
#include "gstbaseparse.h"
#include <gst/baseparse/gstbaseparse.h>
G_BEGIN_DECLS
......
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