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android/libwvdrmengine
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John W. Bruce 169c5b3d10 Revert "Fix IV handling for pattern encryption." 
(This is a merge of http://go/wvgerrit/92191)

This reverts commit 8fe569cc1265021e275a9bccbc362ebd2ba3be5f.

The ISO-CENC spec is ambiguous about how to handle the early truncation
of the pattern in the 'cens' and 'cbcs' schema. We originally
interpreted it to mean "follow the pattern until you run out of full
crypto blocks" and shipped the Android and OEMCrypto code accordingly.
Later, however, other engineers at Google asserted that it should mean
"follow the pattern until you run out of enough crypto blocks to follow
the encrypted part of the pattern", which is subtly different when the
number of encrypted blocks in the pattern is greater than 1. We made
changes to start accommodating this. However, after further discussion,
everyone is in agreement that the original behavior was correct. So I am
reverting the "fixes" that had already been made.

This has no practical effect, since it only affects 'cens' content with
a pattern that has more than one encrypted block, and as far as we know,
no one has ever generated content like that. Shaka Packager is not
capable of generating content like that.

Bug: 111001481
Test: No new Android Unit Tests failures
Change-Id: I8f0292b1222d6af9a0ae33d6cb91707fd40101f4
2020-01-15 16:42:52 -08:00
..
cdm
Merge "Included metrics for LRU replacement."
2019-12-18 18:38:34 +00:00
docs
Update docs for OEMCrypto v15.2
2019-05-05 21:42:35 -07:00
include
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
include_hidl
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
level3
Update Level 3 to OEMCrypto v15.2
2019-05-14 21:00:37 +00:00
mediacrypto
Revert "Fix IV handling for pattern encryption."
2020-01-15 16:42:52 -08:00
mediadrm
Link with actual headers instead of symlinks
2020-01-07 15:26:14 -08:00
oem_certificate_generator
Support both PEM format and DER format intermediate certs
2019-01-28 09:38:53 -08:00
oemcrypto
odk: core serialization structs & functions
2019-12-13 01:32:03 +00:00
src
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
src_hidl
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
test
Link with actual headers instead of symlinks
2020-01-07 15:26:14 -08:00
tools/metrics_dump
Add metrics_dump, a tool to format drm metrics
2019-11-21 15:39:30 -08:00
vts/vendor_module
Link dynamic libcrypto.so to resolve FIPS cert breakage.
2019-09-16 14:38:00 -07:00
Android.mk
Link with actual headers instead of symlinks
2020-01-07 13:21:05 -08:00
build_and_run_all_unit_tests.sh
Included metrics for LRU replacement.
2019-12-16 17:38:50 -08:00
common_widevine_service.mk
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
diff_changes.sh
Add script to diff test results between changes
2019-03-22 10:17:43 -07:00
manifest_android.hardware.drm@1.2-service.widevine.xml
Add Widevine L3 drm service to cuttlefish
2019-10-23 17:00:33 -07:00
manifest_android.hardware.drm@1.3-service.widevine.xml
wv hidl: upgrade Drm/Crypto factories to v1.3
2019-12-16 01:19:49 -08:00
move_widevine_data.sh
Change move_widevine_data.sh to move L3 files
2019-05-16 20:25:54 +00:00
README
Add README for Android
2018-11-22 00:33:30 +00:00
run_all_unit_tests.sh
Add certificate_provisioning_unittest
2019-10-17 18:03:00 -07:00
run_gts_and_cts_tests.sh
Add a script to run the GTS and CTS media tests
2019-02-08 10:19:51 -08:00
TEST_MAPPING
Add CTS/GTS tests for TH presumbit.
2019-10-02 17:38:05 -07:00

README 

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           |
+------------------------------+------------------------------+