gstreamer/gst/mpegstream/gstmpegparse.h

123 lines
3.6 KiB
C
Raw Normal View History

/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
*
* 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 __MPEG_PARSE_H__
#define __MPEG_PARSE_H__
#include <gst/gst.h>
#include <gst/bytestream/bytestream.h>
#include "gstmpegpacketize.h"
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define GST_TYPE_MPEG_PARSE \
(gst_mpeg_parse_get_type())
#define GST_MPEG_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG_PARSE,GstMPEGParse))
#define GST_MPEG_PARSE_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG_PARSE,GstMPEGParseClass))
#define GST_IS_MPEG_PARSE(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG_PARSE))
#define GST_IS_MPEG_PARSE_CLASS(obj) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG_PARSE))
#define GST_MPEG_PARSE_IS_MPEG2(parse) (GST_MPEG_PACKETIZE_IS_MPEG2 (GST_MPEG_PARSE (parse)->packetize))
#define CLOCK_BASE 9LL
#define CLOCK_FREQ CLOCK_BASE * 10000
#define MPEGTIME_TO_GSTTIME(time) (((time) * (GST_MSECOND/10)) / CLOCK_BASE)
#define GSTTIME_TO_MPEGTIME(time) (((time) * CLOCK_BASE) / (GST_MSECOND/10))
typedef struct _GstMPEGParse GstMPEGParse;
typedef struct _GstMPEGParseClass GstMPEGParseClass;
struct _GstMPEGParse {
GstElement element;
GstPad *sinkpad, *srcpad;
GstMPEGPacketize *packetize;
/* pack header values */
guint32 mux_rate;
guint64 current_scr;
guint64 next_scr;
guint64 bytes_since_scr;
gint64 adjust;
gboolean discont_pending;
gboolean scr_pending;
gint max_discont;
GstClock *provided_clock;
GstClock *clock;
gboolean sync;
GstClockID id;
GstIndex *index;
gint index_id;
GstCaps *streaminfo;
};
struct _GstMPEGParseClass {
GstElementClass parent_class;
/* process packet types */
gboolean (*parse_packhead) (GstMPEGParse *parse, GstBuffer *buffer);
gboolean (*parse_syshead) (GstMPEGParse *parse, GstBuffer *buffer);
gboolean (*parse_packet) (GstMPEGParse *parse, GstBuffer *buffer);
gboolean (*parse_pes) (GstMPEGParse *parse, GstBuffer *buffer);
/* optional method to send out the data */
void (*send_data) (GstMPEGParse *parse, GstData *data, GstClockTime time);
void (*handle_discont) (GstMPEGParse *parse);
};
GType gst_mpeg_parse_get_type(void);
gboolean gst_mpeg_parse_plugin_init (GstPlugin *plugin);
const GstFormat*
gst_mpeg_parse_get_src_formats (GstPad *pad);
gboolean gst_mpeg_parse_convert_src (GstPad *pad, GstFormat src_format, gint64 src_value,
GstFormat *dest_format, gint64 *dest_value);
const GstEventMask*
gst_mpeg_parse_get_src_event_masks (GstPad *pad);
gboolean gst_mpeg_parse_handle_src_event (GstPad *pad, GstEvent *event);
const GstQueryType*
gst_mpeg_parse_get_src_query_types (GstPad *pad);
gboolean gst_mpeg_parse_handle_src_query (GstPad *pad, GstQueryType type,
GstFormat *format, gint64 *value);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __MPEG_PARSE_H__ */