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b9dbb55105
Original commit message from CVS: * docs/design/part-overview.txt: Make upsteam/downstream concepts more clear. Give an example of serialized/non-serialized events. * docs/design/part-events.txt: * docs/design/part-streams.txt: Mention applied_rate. * docs/design/part-trickmodes.txt: Mention applied rate, flesh out some more use cases. * gst/gstevent.c: (gst_event_new_new_segment), (gst_event_parse_new_segment), (gst_event_new_new_segment_full), (gst_event_parse_new_segment_full), (gst_event_new_tag), (gst_event_parse_tag), (gst_event_new_buffer_size), (gst_event_parse_buffer_size), (gst_event_new_qos), (gst_event_parse_qos), (gst_event_parse_seek), (gst_event_new_navigation): * gst/gstevent.h: Add applied_rate field to NEWSEGMENT event. API: gst_event_new_new_segment_full() API: gst_event_parse_new_segment_full() * gst/gstsegment.c: (gst_segment_init), (gst_segment_set_seek), (gst_segment_set_newsegment), (gst_segment_set_newsegment_full), (gst_segment_to_stream_time), (gst_segment_to_running_time): * gst/gstsegment.h: Add applied_rate to GstSegment structure. Make calculation of stream_time and running_time more correct wrt rate/applied_rate. Add some more docs. API: GstSegment::applied_rate field API: gst_segment_set_newsegment_full(); * libs/gst/base/gstbasesink.c: (gst_base_sink_configure_segment), (gst_base_sink_get_sync_times), (gst_base_sink_get_position): * libs/gst/base/gstbasetransform.c: (gst_base_transform_sink_eventfunc), (gst_base_transform_handle_buffer): Parse and use applied_rate in the GstSegment field. * tests/check/gst/gstevent.c: (GST_START_TEST): Add check for applied_rate field. * tests/check/gst/gstsegment.c: (GST_START_TEST), (gstsegments_suite): Add more checks for various GstSegment operations.
105 lines
3.4 KiB
C
105 lines
3.4 KiB
C
/* GStreamer
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* Copyright (C) 2005 Wim Taymans <wim@fluendo.com>
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*
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* gstsegment.h: Header for GstSegment subsystem
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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 __GST_SEGMENT_H__
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#define __GST_SEGMENT_H__
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#include <gst/gstevent.h>
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#include <gst/gstformat.h>
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G_BEGIN_DECLS
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#define GST_TYPE_SEGMENT (gst_segment_get_type())
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typedef struct _GstSegment GstSegment;
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/**
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* GstSegment:
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* @rate: the rate of the segment
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* @abs_rate: absolute value of @rate
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* @format: the format of the segment values
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* @flags: flags for this segment
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* @start: the start of the segment
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* @stop: the stop of the segment
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* @time: the stream time of the segment
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* @accum: accumulated segment
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* @last_stop: last known stop time
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* @duration: total duration of segment
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* @applied_rate: the already applied rate to the segment
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*
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* A helper structure that holds the configured region of
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* interest in a media file.
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*/
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struct _GstSegment {
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/*< public >*/
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gdouble rate;
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gdouble abs_rate;
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GstFormat format;
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GstSeekFlags flags;
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gint64 start;
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gint64 stop;
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gint64 time;
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gint64 accum;
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gint64 last_stop;
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gint64 duration;
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/* API added 0.10.6 */
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gdouble applied_rate;
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/*< private >*/
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//gpointer _gst_reserved[GST_PADDING-2];
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guint8 _gst_reserved[(sizeof (gpointer) * GST_PADDING) - sizeof (gdouble)];
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};
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GType gst_segment_get_type (void);
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GstSegment * gst_segment_new (void);
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void gst_segment_free (GstSegment *segment);
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void gst_segment_init (GstSegment *segment, GstFormat format);
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void gst_segment_set_duration (GstSegment *segment, GstFormat format, gint64 duration);
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void gst_segment_set_last_stop (GstSegment *segment, GstFormat format, gint64 position);
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void gst_segment_set_seek (GstSegment *segment, gdouble rate,
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GstFormat format, GstSeekFlags flags,
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GstSeekType cur_type, gint64 cur,
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GstSeekType stop_type, gint64 stop,
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gboolean *update);
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void gst_segment_set_newsegment (GstSegment *segment, gboolean update, gdouble rate,
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GstFormat format, gint64 start, gint64 stop, gint64 time);
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void gst_segment_set_newsegment_full (GstSegment *segment, gboolean update, gdouble rate,
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gdouble applied_rate, GstFormat format, gint64 start,
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gint64 stop, gint64 time);
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gint64 gst_segment_to_stream_time (GstSegment *segment, GstFormat format, gint64 position);
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gint64 gst_segment_to_running_time (GstSegment *segment, GstFormat format, gint64 position);
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gboolean gst_segment_clip (GstSegment *segment, GstFormat format, gint64 start,
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gint64 stop, gint64 *clip_start, gint64 *clip_stop);
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G_END_DECLS
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#endif /* __GST_SEGMENT_H__ */
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