1 Copyright (c) 2010, Google Inc. All rights reserved. 2 3 Redistribution and use in source and binary forms, with or without 4 modification, are permitted provided that the following conditions are 5 met: 6 7 * Redistributions of source code must retain the above copyright 8 notice, this list of conditions and the following disclaimer. 9 10 * Redistributions in binary form must reproduce the above copyright 11 notice, this list of conditions and the following disclaimer in 12 the documentation and/or other materials provided with the 13 distribution. 14 15 * Neither the name of Google nor the names of its contributors may 16 be used to endorse or promote products derived from this software 17 without specific prior written permission. 18 19 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 31 Additional IP Rights Grant (Patents) 32 33 "This implementation" means the copyrightable works distributed by 34 Google as part of the WebM Project. 35 36 Google hereby grants to you a perpetual, worldwide, non-exclusive, 37 no-charge, royalty-free, irrevocable (except as stated in this section) 38 patent license to make, have made, use, offer to sell, sell, import, 39 transfer, and otherwise run, modify and propagate the contents of this 40 implementation of VP8, where such license applies only to those patent 41 claims, both currently owned by Google and acquired in the future, 42 licensable by Google that are necessarily infringed by this 43 implementation of VP8. This grant does not include claims that would be 44 infringed only as a consequence of further modification of this 45 implementation. If you or your agent or exclusive licensee institute or 46 order or agree to the institution of patent litigation against any 47 entity (including a cross-claim or counterclaim in a lawsuit) alleging 48 that this implementation of VP8 or any code incorporated within this 49 implementation of VP8 constitutes direct or contributory patent 50 infringement, or inducement of patent infringement, then any patent 51 rights granted to you under this License for this implementation of VP8 52 shall terminate as of the date such litigation is filed. 53
