[Bug 786797] New: codecparsers: h264: store SPS's and subset SPS's separately
GStreamer (GNOME Bugzilla)
bugzilla at gnome.org
Fri Aug 25 11:42:33 UTC 2017
https://bugzilla.gnome.org/show_bug.cgi?id=786797
Bug ID: 786797
Summary: codecparsers: h264: store SPS's and subset SPS's
separately
Classification: Platform
Product: GStreamer
Version: git master
OS: Linux
Status: NEW
Severity: normal
Priority: Normal
Component: gst-plugins-bad
Assignee: gstreamer-bugs at lists.freedesktop.org
Reporter: orestisf1993 at gmail.com
QA Contact: gstreamer-bugs at lists.freedesktop.org
CC: bsreerenj at gmail.com
GNOME version: ---
>From the H264 spec: H.7.4.1.2.1 - Order of MVC sequence parameter set RBSPs and
picture parameter set RBSPs and their activation:
> NOTE 5 – A decoder must be capable of simultaneously storing the contents of the sequence parameter sets and subset sequence
> parameter sets for all values of seq_parameter_set_id. The content of the sequence parameter set with a particular value of
> seq_parameter_set_id is overwritten when a new sequence parameter set NAL unit with the same value of seq_parameter_set_id is
> received, and the content of the subset sequence parameter set with a particular value of seq_parameter_set_id is overwritten when
> a new subset sequence parameter set NAL unit with the same value of seq_parameter_set_id is received.
This should also be required for parsing SVC streams.
Some discussion in bug 732266:
https://bugzilla.gnome.org/show_bug.cgi?id=732266#c36
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