Try to delay failure for as long as possible. That is, propagate
DRM session failures only after an encrypted buffer arrives or clear
sample playback without session is not allowed.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=183076348

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=174185407

Updates DefaultDrmSessionManager to use the prefered Widevine version (v1
on >= 23 and v0 for < 23).
For other DRM schemes, uses the first scheme found.

This includes both cbcs and cenc. Will only work for streams that require a single
pssh.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=169382884

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=167171407

This mapping when we call into platform components also needs
to be applied when creating the MediaCrypto instance. The fix
is to stop propagating the UUID through all the createMediaCrypto
methods. This is unnecessary, since the eventual target already
knows its own UUID!

Issue: #3138

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=166843372

At the moment, only CENC-defined scheme types are known values.
This will allow having more information about the encryption
scheme through the format, which in turn will allow more informed
decisions on format support.

Issue:#1661
Issue:#1989
Issue:#2089

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=159538907

1. Move entire library from v2/library/ to v2/library/core
2. Add v2/library/all that depends on v2/library/core

Issue: #2139

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=150455693

Also inline a few methods/classes where they can be made
private and therefore be removed from the public API.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=130935090

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128967776

- Invoked --> Called
- Gets --> Returns
- "True if X. False otherwise." --> "Whether X."
- Removed some @returns where the Javadoc is in "Returns X" form

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128678638

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128345063

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=128085240

- The package is renamed to avoid conflicts with v1, should any
app wish to include both v1 and v2 for a period of time. This is
similar to the approach used by some other open source projects
(e.g. okhttp).
- Copyright year is updated everywhere for completeness.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=126895326

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=123302488

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=122407769

- This moves to a single DrmInitData implementation that supports
  both specific and universal UUID matching. You can also do a
  combination of the two, which was not previously possible.
- The object model is simplified as a result. This is a precursor
  to a change where DrmInitData will be included directly in the
  Format to enable key rotation.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121472592

This will be required for key rotation to work, since
we'll need a way to determine whether or not the init
data has changed.
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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=121018211

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=120326293

We were previously using the container format of the media being
played as the mimeType generating key requests, but this is not
always correct. As an example, where a manifest contains webm streams
but specifies initialization data using cenc:pssh elements in the
manifest, the media has a webm mimeType, but the DRM initialization
data has an mp4 mimeType.

This fixes SmoothStreaming on AndroidTV, and also removes a
warning that gets logged when using Widevine/FMP4.