[Bug 682973] [videotestsrc] keep track of the correct running time after renegotiations

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=682973
  GStreamer | gst-plugins-base | unspecified

--- Comment #1 from Thiago Sousa Santos <thiago.sousa.santos at collabora.co.uk> 2012-08-29 19:07:12 UTC ---
Created an attachment (id=222826)
 View: https://bugzilla.gnome.org/attachment.cgi?id=222826
 Review: https://bugzilla.gnome.org/review?bug=682973&attachment=222826

videotestsrc: keep track of the correct running time after renegotiations

Need to store the old running time and frame numbers when renegotiating and
start from 0 again when a new caps is set, preventing that framerate changes
cause timestamping issues.

For example, if a stream pushed 10 buffers on framerate=2/1, its
running time will be 5s. If a new framerate of 1/1 is set, it would
make the running time go to 10s as it would count those 10 buffers
as being sent on this new framerate.

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