ref: 3971967c0ba172e4cf7b87172b0d627b011294e9
dir: /third_party/libwebm/README.libvpx/
URL: https://chromium.googlesource.com/webm/libwebm Version: 249629d46c6e9391f25a90cff6d19075f47474cb License: BSD License File: LICENSE.txt Description: libwebm is used to handle WebM container I/O.