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eb74aa8515
Reference frame list is formed by each of the provided recon_frame, while the assumption here is to use the API provided by VAAPI interface, when a frame is marked as "long term reference" by av1->picture_flags.bits.long_term_reference Its recon_frame will be kept in DPB marked by its recon_frame as signature. When a future input requests refering to it, it can go this way: 1. set av1->ref_frame_ctrl_l0.field.search_idx2 to indicate which ref_frame_idx slot will be used. x = av1->ref_frame_ctrl_l0.field.search_idx2; 2. n = av1->ref_frame_idx[x-1]; av1->reference_frames[n] as the signature to compare with. if av1->reference_frames[n] is pointing to the same video buffer (signature) as the one marked as "long term reference". Then the new input is refering to it only. 3. in SVC case, long terms are used for temproal_id 0 only, because using long term means potentially scene change could happen. 4. the "long term reference" recon_frame should be kept, instead of being reused until it is no longer needed to avoid signature duplication. Reviewed-by: Leo Liu <leo.liu@amd.com> Signed-off-by: Ruijing Dong <ruijing.dong@amd.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/27771> |
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`Mesa <https://mesa3d.org>`_ - The 3D Graphics Library ====================================================== Source ------ This repository lives at https://gitlab.freedesktop.org/mesa/mesa. Other repositories are likely forks, and code found there is not supported. Build & install --------------- You can find more information in our documentation (`docs/install.rst <https://mesa3d.org/install.html>`_), but the recommended way is to use Meson (`docs/meson.rst <https://mesa3d.org/meson.html>`_): .. code-block:: sh $ mkdir build $ cd build $ meson .. $ sudo ninja install Support ------- Many Mesa devs hang on IRC; if you're not sure which channel is appropriate, you should ask your question on `OFTC's #dri-devel <irc://irc.oftc.net/dri-devel>`_, someone will redirect you if necessary. Remember that not everyone is in the same timezone as you, so it might take a while before someone qualified sees your question. To figure out who you're talking to, or which nick to ping for your question, check out `Who's Who on IRC <https://dri.freedesktop.org/wiki/WhosWho/>`_. The next best option is to ask your question in an email to the mailing lists: `mesa-dev\@lists.freedesktop.org <https://lists.freedesktop.org/mailman/listinfo/mesa-dev>`_ Bug reports ----------- If you think something isn't working properly, please file a bug report (`docs/bugs.rst <https://mesa3d.org/bugs.html>`_). Contributing ------------ Contributions are welcome, and step-by-step instructions can be found in our documentation (`docs/submittingpatches.rst <https://mesa3d.org/submittingpatches.html>`_). Note that Mesa uses gitlab for patches submission, review and discussions.