[FFmpeg-devel] [PATCH 0/7] Improve CBS unit content alloc/free/clone behaviour
sw at jkqxz.net
Thu Jan 24 01:01:07 EET 2019
On 26/11/2018 13:39, Andreas Rheinhardt wrote:
> This will enable us to change e.g. the parameter sets of H.2645 in ways
> that would change the parsing process of future units. An example of
> this is the h264_redundant_pps bsf.
I thought quite a bit more about how the alloc/free/clone should fit together here. Following is a patch series implementing it using tables defining how each unit works, which I think ends up being nicer than the previous setup with ad-hoc functions for each case. The existing ad-hoc functions for the hardest cases (that is, SEI) stay, but everything else in H.26 can be handled without any new functions at all.
It ends up implementing pretty the same make_unit_writable() function that you proposed, so the last patch is your one to h264_redundant_pps.
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