pts is not known or relevant. The pts contains the timestamp when the media should be presented to the user.
Buffer.pts
gst.types.ClockTime pts() @propertyGet pts field.
Returns
presentation timestamp of the buffer, can be #GST_CLOCK_TIME_NONE when the
void pts(gst.types.ClockTime propval) @propertySet pts field.
Parameters
propval | presentation timestamp of the buffer, can be #GST_CLOCK_TIME_NONE when the pts is not known or relevant. The pts contains the timestamp when the media should be presented to the user. |