| gstreamermm
    0.10.11
    | 
A new segment query object. More...


| Public Member Functions | |
| QuerySegment (GstQuery* query) | |
| void | set (double rate, Format format, gint64 start_value, gint64 stop_value) | 
| Answer a segment query by setting the requested values. | |
| void | parse (double& rate, Format& format, gint64& start_value, gint64& stop_value) const | 
| Parse a segment query answer. | |
| double | parse_rate () const | 
| Parse a segment query answer, returning the rate. | |
| Format | parse_format () const | 
| Parse a segment query answer, returning the format. | |
| gint64 | parse_start () const | 
| Parse a segment query answer, returning the start value. | |
| gint64 | parse_stop () const | 
| Parse a segment query answer, returning the stop value. | |
| Static Public Member Functions | |
| static Glib::RefPtr < Gst::QuerySegment > | create (Format format) | 
| Constructs a new segment query object. | |
A new segment query object.
See create() for more details.
| Gst::QuerySegment::QuerySegment | ( | GstQuery * | query | ) |  [explicit] | 
| static Glib::RefPtr<Gst::QuerySegment> Gst::QuerySegment::create | ( | Format | format | ) |  [static] | 
Constructs a new segment query object.
A segment query is used to discover information about the currently configured segment for playback.
| format | The Gst::Format for the new query. | 
| void Gst::QuerySegment::parse | ( | double & | rate, | 
| Format& | format, | ||
| gint64 & | start_value, | ||
| gint64 & | stop_value | ||
| ) | const | 
Parse a segment query answer.
See set() for an explanation of the function arguments. Use the other parse() methods to parse individual values.
| rate | The storage for the rate of the segment. | 
| format | The storage for the Gst::Format of the values. | 
| start_value | The storage for the start value. | 
| stop_value | The storage for the stop value. | 
| Format Gst::QuerySegment::parse_format | ( | ) | const | 
Parse a segment query answer, returning the format.
See set() for an explanation of the function arguments.
| double Gst::QuerySegment::parse_rate | ( | ) | const | 
| gint64 Gst::QuerySegment::parse_start | ( | ) | const | 
| gint64 Gst::QuerySegment::parse_stop | ( | ) | const | 
| void Gst::QuerySegment::set | ( | double | rate, | 
| Format | format, | ||
| gint64 | start_value, | ||
| gint64 | stop_value | ||
| ) | 
Answer a segment query by setting the requested values.
The normal playback segment of a pipeline is 0 to duration at the default rate of 1.0. If a seek was performed on the pipeline to play a different segment, this query will return the range specified in the last seek.
start_value and stop_value will respectively contain the configured playback range start and stop values expressed in format. The values are always between 0 and the duration of the media and start_value <= stop_value. rate will contain the playback rate. For negative rates, playback will actually happen from stop_value to start_value.
| rate | The rate of the segment. | 
| format | The Gst::Format of the segment values (start_value and stop_value). | 
| start_value | The start value. | 
| stop_value | The stop value. | 
 1.7.6.1
 1.7.6.1