[gstreamer-bugs] [Bug 619548] qtdemux: Guess bitrate if only one stream's bitrate is unknown
GStreamer (bugzilla.gnome.org)
bugzilla at gnome.org
Thu Jun 3 10:20:52 PDT 2010
https://bugzilla.gnome.org/show_bug.cgi?id=619548
GStreamer | gst-plugins-good | unspecified
--- Comment #7 from Arun Raghavan <arun at accosted.net> 2010-06-03 17:20:50 UTC ---
Created an attachment (id=162675)
View: https://bugzilla.gnome.org/attachment.cgi?id=162675
Review: https://bugzilla.gnome.org/review?bug=619548&attachment=162675
qtdemux: Guess bitrate if only one stream's bitrate is unknown
If the bitrates for all but one audio/video streams are known, and the
total stream size and duration can be determined, this calculates the
unkown bitrate as (stream size / duration) - (sum of known bitrates).
While this is not guaranteed to be very accurate, it should be good
enough for most purposes.
For example, this is useful for H.263 + AAC streams where no 'btrt' atom
is available for the video portion.
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