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//opt/alt/dav1d/share/licenses/alt-libdav1d/PATENTS

Alliance for Open Media Patent License 1.0

1. License Terms.

1.1. Patent License. Subject to the terms and conditions of this License, each
     Licensor, on behalf of itself and successors in interest and assigns,
     grants Licensee a non-sublicensable, perpetual, worldwide, non-exclusive,
     no-charge, royalty-free, irrevocable (except as expressly stated in this
     License) patent license to its Necessary Claims to make, use, sell, offer
     for sale, import or distribute any Implementation.

1.2. Conditions.

1.2.1. Availability. As a condition to the grant of rights to Licensee to make,
       sell, offer for sale, import or distribute an Implementation under
       Section 1.1, Licensee must make its Necessary Claims available under
       this License, and must reproduce this License with any Implementation
       as follows:

a. For distribution in source code, by including this License in the
          root directory of the source code with its Implementation.

b. For distribution in any other form (including binary, object form,
          and/or hardware description code (e.g., HDL, RTL, Gate Level Netlist,
          GDSII, etc.)), by including this License in the documentation, legal
          notices, and/or other written materials provided with the
          Implementation.

1.2.2. Additional Conditions. This license is directly from Licensor to
       Licensee.  Licensee acknowledges as a condition of benefiting from it
       that no rights from Licensor are received from suppliers, distributors,
       or otherwise in connection with this License.

1.3. Defensive Termination. If any Licensee, its Affiliates, or its agents
     initiates patent litigation or files, maintains, or voluntarily
     participates in a lawsuit against another entity or any person asserting
     that any Implementation infringes Necessary Claims, any patent licenses
     granted under this License directly to the Licensee are immediately
     terminated as of the date of the initiation of action unless 1) that suit
     was in response to a corresponding suit regarding an Implementation first
     brought against an initiating entity, or 2) that suit was brought to
     enforce the terms of this License (including intervention in a third-party
     action by a Licensee).

1.4. Disclaimers. The Reference Implementation and Specification are provided
     "AS IS" and without warranty. The entire risk as to implementing or
     otherwise using the Reference Implementation or Specification is assumed
     by the implementer and user. Licensor expressly disclaims any warranties
     (express, implied, or otherwise), including implied warranties of
     merchantability, non-infringement, fitness for a particular purpose, or
     title, related to the material. IN NO EVENT WILL LICENSOR BE LIABLE TO
     ANY OTHER PARTY FOR LOST PROFITS OR ANY FORM OF INDIRECT, SPECIAL,
     INCIDENTAL, OR CONSEQUENTIAL DAMAGES OF ANY CHARACTER FROM ANY CAUSES OF
     ACTION OF ANY KIND WITH RESPECT TO THIS LICENSE, WHETHER BASED ON BREACH
     OF CONTRACT, TORT (INCLUDING NEGLIGENCE), OR OTHERWISE, AND WHETHER OR
     NOT THE OTHER PARTRY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

2. Definitions.

2.1. Affiliate.  “Affiliate” means an entity that directly or indirectly
     Controls, is Controlled by, or is under common Control of that party.

2.2. Control. “Control” means direct or indirect control of more than 50% of
     the voting power to elect directors of that corporation, or for any other
     entity, the power to direct management of such entity.

2.3. Decoder.  "Decoder" means any decoder that conforms fully with all
     non-optional portions of the Specification.

2.4. Encoder.  "Encoder" means any encoder that produces a bitstream that can
     be decoded by a Decoder only to the extent it produces such a bitstream.

2.5. Final Deliverable.  “Final Deliverable” means the final version of a
     deliverable approved by the Alliance for Open Media as a Final
     Deliverable.

2.6. Implementation.  "Implementation" means any implementation, including the
     Reference Implementation, that is an Encoder and/or a Decoder. An
     Implementation also includes components of an Implementation only to the
     extent they are used as part of an Implementation.

2.7. License. “License” means this license.

2.8. Licensee. “Licensee” means any person or entity who exercises patent
     rights granted under this License.

2.9. Licensor.  "Licensor" means (i) any Licensee that makes, sells, offers
     for sale, imports or distributes any Implementation, or (ii) a person
     or entity that has a licensing obligation to the Implementation as a
     result of its membership and/or participation in the Alliance for Open
     Media working group that developed the Specification.

2.10. Necessary Claims.  "Necessary Claims" means all claims of patents or
      patent applications, (a) that currently or at any time in the future,
      are owned or controlled by the Licensor, and (b) (i) would be an
      Essential Claim as defined by the W3C Policy as of February 5, 2004
      (https://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential)
      as if the Specification was a W3C Recommendation; or (ii) are infringed
      by the Reference Implementation.

2.11. Reference Implementation. “Reference Implementation” means an Encoder
      and/or Decoder released by the Alliance for Open Media as a Final
      Deliverable.

2.12. Specification. “Specification” means the specification designated by
      the Alliance for Open Media as a Final Deliverable for which this
      License was issued.