Change type android impl

[johnedocampo]

No description provided.

[github-actions]

🤖 Gemini Suggested Commit Message

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media: Implement SourceBuffer.changeType support

Implement support for mid-stream codec changes via the Media Source
Extensions changeType API, specifically for Starboard and Android.

Update decoder configurations to track changeType transitions and
propagate these flags through Mojo. Modify StarboardRenderer to defer
applying new configurations until the first sample of the new codec
is encountered to prevent corruption of in-flight buffers.

On Android, implement a decoder hot-swap mechanism in the video decoder
to drain the current MediaCodec and reinitialize it with the new MIME
type and codec parameters.

Bug: 375275033

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