gstreamer/ext/ogg/gstoggmux.h
2012-11-03 23:05:09 +00:00

147 lines
4.3 KiB
C

/* OGG muxer plugin for GStreamer
* Copyright (C) 2004 Wim Taymans <wim@fluendo.com>
* Copyright (C) 2006 Thomas Vander Stichele <thomas at apestaart dot org>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_OGG_MUX_H__
#define __GST_OGGEMUX_H__
#include <ogg/ogg.h>
#include <gst/gst.h>
#include <gst/base/gstcollectpads.h>
#include "gstoggstream.h"
G_BEGIN_DECLS
#define GST_TYPE_OGG_MUX (gst_ogg_mux_get_type())
#define GST_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_OGG_MUX, GstOggMux))
#define GST_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_OGG_MUX, GstOggMux))
#define GST_IS_OGG_MUX(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_OGG_MUX))
#define GST_IS_OGG_MUX_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_OGG_MUX))
typedef struct _GstOggMux GstOggMux;
typedef struct _GstOggMuxClass GstOggMuxClass;
typedef enum
{
GST_OGG_PAD_STATE_CONTROL = 0,
GST_OGG_PAD_STATE_DATA = 1
}
GstOggPadState;
/* all information needed for one ogg stream */
typedef struct
{
GstCollectData collect; /* we extend the CollectData */
GstOggStream map;
gboolean have_type;
GstSegment segment;
GstBuffer *buffer; /* the first waiting buffer for the pad */
gint64 packetno; /* number of next packet */
gint64 pageno; /* number of next page */
guint64 duration; /* duration of current page */
gboolean eos;
gint64 offset;
GstClockTime timestamp; /* timestamp of the first packet on the next
* page to be dequeued */
GstClockTime timestamp_end; /* end timestamp of last complete packet on
the next page to be dequeued */
GstClockTime gp_time; /* time corresponding to the gp value of the
last complete packet on the next page to be
dequeued */
GstOggPadState state; /* state of the pad */
GQueue *pagebuffers; /* List of pages in buffers ready for pushing */
gboolean new_page; /* starting a new page */
gboolean first_delta; /* was the first packet in the page a delta */
gboolean prev_delta; /* was the previous buffer a delta frame */
gboolean data_pushed; /* whether we pushed data already */
gint64 next_granule; /* expected granule of next buffer ts */
gint64 keyframe_granule; /* granule of last preceding keyframe */
GstTagList *tags;
}
GstOggPadData;
/**
* GstOggMux:
*
* The ogg muxer object structure.
*/
struct _GstOggMux
{
GstElement element;
/* source pad */
GstPad *srcpad;
/* sinkpads */
GstCollectPads *collect;
/* number of pads which have not received EOS */
gint active_pads;
/* the pad we are currently using to fill a page */
GstOggPadData *pulling;
/* next timestamp for the page */
GstClockTime next_ts;
/* Last timestamp actually output on src pad */
GstClockTime last_ts;
/* offset in stream */
guint64 offset;
/* need_headers */
gboolean need_headers;
gboolean need_start_events;
guint64 max_delay;
guint64 max_page_delay;
guint64 max_tolerance;
GstOggPadData *delta_pad; /* when a delta frame is detected on a stream, we mark
pages as delta frames up to the page that has the
keyframe */
/* whether to create a skeleton track */
gboolean use_skeleton;
};
struct _GstOggMuxClass
{
GstElementClass parent_class;
};
GType gst_ogg_mux_get_type (void);
gboolean gst_ogg_mux_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_OGG_MUX_H__ */