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Added CDM support for Watermarking reporting.

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[ Merge of http://go/wvgerrit/148552 ]

Extended the CDM layer to report OEMCrypto's watermarking support.
The reporting of watermarking comes in three (3) mechanisms:
1) ClientCapabilities in license requests
2) CryptoSession metrics when queried to OEMCrypto
3) String property query by apps

If OEMCrypto implementents OEMCrypto_GetWatermarkingSupport(), then
the reported watermarking support by the CDM will match that of
OEMCrypto.

If OEMCrypto does not implement OEMCrypto_GetWatermarkingSupport()
or an error occurs, it is assumed that OEMCrypto does not support
watermarking, and the CDM will report "Not Supported".

Bug: 226443788
Test: run_x86_64_tests request_license_test and license_unittest
Change-Id: Id929a356c395e6bcf45d371ee6887eec40d35329
This commit is contained in:
Alex Dale
2022-03-23 17:00:32 -07:00
parent 0a65e3ba32
commit 97f3544866
22 changed files with 191 additions and 9 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
libwvdrmengine/cdm/core/src/client_identification.cpp
View File

@@ -343,6 +343,28 @@ CdmResponseType ClientIdentification::Prepare(
}
}
if (is_license_request_) {
CdmWatermarkingSupport support;
if (!crypto_session_->GetWatermarkingSupport(&support)) {
// Assume not supported.
support = kWatermarkingNotSupported;
}
switch (support) {
case kWatermarkingNotSupported:
client_capabilities->set_watermarking_support(
ClientCapabilities::WATERMARKING_NOT_SUPPORTED);
break;
case kWatermarkingConfigurable:
client_capabilities->set_watermarking_support(
ClientCapabilities::WATERMARKING_CONFIGURABLE);
break;
case kWatermarkingAlwaysOn:
client_capabilities->set_watermarking_support(
ClientCapabilities::WATERMARKING_ALWAYS_ON);
break;
}
}
return NO_ERROR;
}