63b2ea86d9
(This is a merge of http://go/wvgerrit/84510) When the CE CDM 3.5 behavior around service certificates was originally implemented, it allowed sessions to be created if a service certificate had not yet been installed, in keeping with the EME spec. However, the service certificate in use at session creation time was cached, and so there was a bug where any sessions open before a service certificate was installed would never be updated with any future service certificates. The code also caused problems for Android. When it was merged to master, it was fixed to simply not allow session creation on CE CDM without a service certificate. However, this created an impedance mismatch between the CE CDM and EME that has caused pain for Shaka Player Embedded, Chrome, Chromecast, Fuchsia, and likely every partner that is trying to implement a fully-compliant EME stack on top of CE CDM. Removing the code that blocks session creation without a service certificate is easy. Fixing the bug that motivated it is not. Removing the caching is not possible because Android needs it for certain behavior on its end. So instead, the CE CDM will have to iterate over all open sessions and update their service certificates if the installed service certificate changes. Test: CE CDM Unit Tests Test: Android Unit Tests Bug: 111766009 Change-Id: I1bd70553e2209b823a6acdc221c0497a5f3181b2
This is the source code for the Widevine Content Decryption Module (CDM) for the Android OS. It provides the libwvdrmengine plugin for DRM. Partners who are integrating a device should be familiar with the documents in the docs directory. This source code is NOT open source, and is not part of AOSP. However, it is released to partners external to Google after official Android releases. For this reason, partners should look for bug fixes and software updates on the widevine branches: +------------------------------+------------------------------+ |Android Version |Branch | +------------------------------+------------------------------+ |Android L |lmp-mr1-widevine-release | +------------------------------+------------------------------+ |Android M MR1 |mnc-mr1-widevine-release | +------------------------------+------------------------------+ |Android N MR2 |nyc-mr2-widevine-release | +------------------------------+------------------------------+ |Android OC |oc-widevine-release | +------------------------------+------------------------------+ |Android OC MR1 |oc-mr1-widevine-release | +------------------------------+------------------------------+ |Android Pi |pi-widevine-release | +------------------------------+------------------------------+