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fadba7919f
Original commit message from CVS: * ext/a52dec/gsta52dec.h: * ext/amrnb/amrnbdec.h: * ext/amrnb/amrnbenc.h: * ext/amrnb/amrnbparse.h: * ext/mpeg2dec/gstmpeg2dec.h: * ext/sidplay/gstsiddec.h: * gst/ac3parse/gstac3parse.h: * gst/asfdemux/gstasfdemux.h: * gst/asfdemux/gstasfmux.h: * gst/dvdlpcmdec/gstdvdlpcmdec.h: * gst/iec958/ac3iec.h: * gst/mpegaudioparse/gstmpegaudioparse.h: * gst/mpegstream/gstdvddemux.h: * gst/mpegstream/gstmpegclock.h: * gst/mpegstream/gstmpegdemux.h: * gst/mpegstream/gstmpegparse.h: Fix more gobject macros: obj<->klass, GstXXX<->GstXXXClass
142 lines
5.2 KiB
C
142 lines
5.2 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 "gstmpegpacketize.h"
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G_BEGIN_DECLS
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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(klass) \
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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 G_GINT64_CONSTANT (9)
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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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{
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GstElement element;
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GstPad *sinkpad, *srcpad;
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GstMPEGPacketize *packetize;
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/* Keep track of total rate using SCR and use hysteresis */
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guint64 first_scr; /* Earliest SCR value for reference */
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guint64 first_scr_pos; /* Byte position of reference SCR */
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guint64 last_scr; /* Latest SCR value for reference */
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guint64 last_scr_pos; /* Byte position of reference SCR */
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guint64 scr_rate; /* Remember the last rate for hysteresis */
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/* Compute a rolling average for SCR interpolation (for MPEG1) */
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guint64 avg_bitrate_time; /* Time total for local average bitrate */
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guint64 avg_bitrate_bytes; /* Bytes total for local average bitrate */
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/* Pack header values */
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guint32 mux_rate; /* Mux rate in bytes/sec derived from Pack
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header */
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guint64 current_scr; /* Current SCR from the stream */
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guint64 next_scr; /* Expected next SCR */
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guint64 bytes_since_scr; /* Bytes since current_scr */
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GstClockTime current_ts; /* Current timestamp (i.e., SCR
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adjusted with the value of
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'adjust') */
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/* Timestamp handling. */
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gboolean do_adjust; /* If true, adjust SCR values using
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the 'adjust' attribute. */
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gint64 adjust; /* Value added to SCR values to
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produce buffer timestamps */
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gboolean pending_newsegment; /* The element should send a
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newsegment event as soon as it sees
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the next SCR. This option is only
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meaningful in do_adjust mode. */
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gint max_scr_gap; /* The maximum allowed SCR gap without
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making a timestamp adjustment */
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GstSegment current_segment; /* Segment currently being played. */
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GstIndex *index;
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gint index_id;
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guint64 byte_offset;
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};
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struct _GstMPEGParseClass
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{
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GstElementClass parent_class;
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/* Process packets of different 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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GstFlowReturn (*parse_packet) (GstMPEGParse * parse, GstBuffer * buffer);
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GstFlowReturn (*parse_pes) (GstMPEGParse * parse, GstBuffer * buffer);
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/* Optional method to send out the data */
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GstFlowReturn (*send_buffer) (GstMPEGParse * parse,
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GstBuffer * buffer, GstClockTime time);
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/* Process an event */
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gboolean (*process_event) (GstMPEGParse * parse,
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GstEvent * event);
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/* Send an event */
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gboolean (*send_event) (GstMPEGParse * parse, GstEvent *event);
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/* Adjust a timestamp */
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GstClockTime (*adjust_ts) (GstMPEGParse * parse, GstClockTime ts);
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/* Signals */
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void (*reached_offset) (GstMPEGParse *parse,
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GstClockTime timeval);
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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 *gst_mpeg_parse_get_src_formats (GstPad * pad);
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gboolean gst_mpeg_parse_handle_src_event (GstPad * pad, GstEvent * event);
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const GstQueryType *gst_mpeg_parse_get_src_query_types (GstPad * pad);
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gboolean gst_mpeg_parse_handle_src_query (GstPad * pad, GstQuery * query);
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G_END_DECLS
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#endif /* __MPEG_PARSE_H__ */
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