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120 lines
3.6 KiB
C
120 lines
3.6 KiB
C
/* GStreamer
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* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __MPEG_PARSE_H__
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#define __MPEG_PARSE_H__
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#include <gst/gst.h>
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#include <gst/bytestream/bytestream.h>
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#include "gstmpegpacketize.h"
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GST_TYPE_MPEG_PARSE \
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(gst_mpeg_parse_get_type())
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#define GST_MPEG_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_MPEG_PARSE,GstMPEGParse))
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#define GST_MPEG_PARSE_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_MPEG_PARSE,GstMPEGParseClass))
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#define GST_IS_MPEG_PARSE(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_MPEG_PARSE))
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#define GST_IS_MPEG_PARSE_CLASS(obj) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_MPEG_PARSE))
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#define GST_MPEG_PARSE_IS_MPEG2(parse) (GST_MPEG_PACKETIZE_IS_MPEG2 (GST_MPEG_PARSE (parse)->packetize))
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#define CLOCK_BASE 9LL
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#define CLOCK_FREQ CLOCK_BASE * 10000
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#define MPEGTIME_TO_GSTTIME(time) (((time) * (GST_MSECOND/10)) / CLOCK_BASE)
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#define GSTTIME_TO_MPEGTIME(time) (((time) * CLOCK_BASE) / (GST_MSECOND/10))
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typedef struct _GstMPEGParse GstMPEGParse;
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typedef struct _GstMPEGParseClass GstMPEGParseClass;
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struct _GstMPEGParse {
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GstElement element;
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GstPad *sinkpad, *srcpad;
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GstMPEGPacketize *packetize;
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/* pack header values */
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guint32 mux_rate;
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guint64 current_scr;
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guint64 next_scr;
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guint64 bytes_since_scr;
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gint64 adjust;
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gboolean discont_pending;
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gboolean scr_pending;
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gint max_discont;
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GstClock *provided_clock;
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GstClock *clock;
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gboolean sync;
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GstClockID id;
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GstIndex *index;
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gint index_id;
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};
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struct _GstMPEGParseClass {
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GstElementClass parent_class;
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/* process packet types */
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gboolean (*parse_packhead) (GstMPEGParse *parse, GstBuffer *buffer);
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gboolean (*parse_syshead) (GstMPEGParse *parse, GstBuffer *buffer);
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gboolean (*parse_packet) (GstMPEGParse *parse, GstBuffer *buffer);
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gboolean (*parse_pes) (GstMPEGParse *parse, GstBuffer *buffer);
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/* optional method to send out the data */
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void (*send_data) (GstMPEGParse *parse, GstData *data, GstClockTime time);
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void (*handle_discont) (GstMPEGParse *parse);
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};
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GType gst_mpeg_parse_get_type(void);
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gboolean gst_mpeg_parse_plugin_init (GstPlugin *plugin);
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const GstFormat*
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gst_mpeg_parse_get_src_formats (GstPad *pad);
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gboolean gst_mpeg_parse_convert_src (GstPad *pad, GstFormat src_format, gint64 src_value,
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GstFormat *dest_format, gint64 *dest_value);
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const GstEventMask*
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gst_mpeg_parse_get_src_event_masks (GstPad *pad);
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gboolean gst_mpeg_parse_handle_src_event (GstPad *pad, GstEvent *event);
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const GstQueryType*
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gst_mpeg_parse_get_src_query_types (GstPad *pad);
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gboolean gst_mpeg_parse_handle_src_query (GstPad *pad, GstQueryType type,
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GstFormat *format, gint64 *value);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __MPEG_PARSE_H__ */
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