(This is a merge of http://go/wvgerrit/12700 from the Widevine CDM
repository.)
Adds unit tests which cover several cases, including five which are
fixed in this patch:
* Find a Widevine PSSH after a PSSH with non-zero flags.
(We have no control over another provider's abuse of the flags field,
so we should not give up if such a PSSH appears before ours.)
* Find a Widevine PSSH after a v1 PSSH.
(CENC now specifies a general v1 format. We don't have to support it
directly in the CDM, but we do have to skip it gracefully.)
* Find a Widevine PSSH after a non-PSSH box.
(This would be unusual input, but we can easily recover from it.)
* Parse a PSSH box with a size field of 0, which means "the rest of the
buffer."
(This would be unusual input, too, but is technically allowed for any
MP4 box.)
* Parse a v1 Widevine PSSH box, ignoring the new fields we don't need.
Bug: 19288007
Change-Id: I355df9e34ba4d53cc02e8501de965a0d193ee554
(This is a merge of
https://widevine-internal-review.googlesource.com/9711 from the
Widevine CDM repo.)
This change updates the CDM's handling of init data types, previously
known as MIME types, to comply with the latest version of the EME
spec.
Following this change, in addition to accepting the deprecated MIME
types "video/mp4", "audio/mp4", "video/webm", and "audio/webm", the
CDM will accept the new standard: Init data types "cenc" and "webm".
Furthermore, this removes the non-PSSH-parsing path from the CDM. All
platforms have unified on the CDM being responsible for parsing the
concatenated PSSH box list, as outlined in the latest EME spec.
As Android has shipped code that expects pre-unwrapped PSSH boxes and
must maintain backwards-compatibility, code has been inserted on that
platform to detect pre-unwrapped data and re-wrap it with a PSSH
header before sending it to the CDM.
There are some small changes to unit tests because of this change:
1) The CDM Engine unit test now no longer needs to unwrap the PSSH on
any platforms when testing ISO-BMFF. It now pre-caches the
unwrapped key ID for use when testing WebM.
2) Several substantially-similar unit tests in the Android code have
been rolled into one test.
Bug: 13564917
Bug: 13570595
Bug: 9465346
Bug: 13570288
Change-Id: I7f27b16b8503f24a26746b5dce71fb61b6fd1bb2
The EME spec technically requires CDMs to treat audio/mp4 and
video/mp4 equivalently, as well as audio/webm and video/webm. We had
only been accepting video/mp4 and video/webm up until now.
This change also centralizes handling of init data types in the shared
CDM code instead of having it spread across multiple places in the
codebase.
(This is a merge of https://widevine-internal-review.googlesource.com/9532/
from the Widevine CDM repo.)
Bug: 13564917
Change-Id: Ib8bdfb2b003ffb00e8f0559561335abb3c5778b0
