|
gstreamermm
0.10.10.2
|
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::Query > | 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::Query> 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