yl_player_platform_interface 0.3.0-dev.4

Shared platform contract and immutable value types for the federated yl_player Flutter plugin.

0.3.0-dev.4

• Synchronize package versions and internal dependencies at 0.3.0-dev.4.
• Preserve bounded, sanitized upstream HTTP status and playback failure causes in shared diagnostic messages.

0.3.0-dev.3

• Synchronize package versions and internal dependencies at 0.3.0-dev.3.
• 新增独立 YlMediaDeliveryProvider 契约，复用准备任务、租约与状态模型。
• 添加缺少可选 AirPlay 交付插件的脱敏接入提示。

0.3.0-dev.1

• Add typed AirPlay availability and route-picker contracts, RTMPS source semantics, and safe external-playback diagnostics.

0.2.0-dev.2

• Add an optional subtitle SPI, bounded source/catalog validation, and default-off subtitle state. Existing track and operation ordinals are preserved; native subtitle support is not advertised by this contract change.
• Add an optional media-clock position metric for observing playback progress independently from live-window timeline coordinates.

0.2.0-dev.1

• Replace the v0.1 backend contract with SPI major 2, explicit implementation identity, source assessment, commit/state Load barriers, and session IDs.
• Add immutable Player/Load policy types, typed source families, authoritative state/timeline/geometry models, correlated events, and safe structured failures.
• Add validation at Dart/native publication boundaries and reusable observable platform conformance utilities.
• Verify the synchronized v0.2 package contract in the publication dry-run gate.

0.1.0-dev.1

• Add immutable player configuration, media-source, track, state, capability, metric, event, and error models.
• Add federated platform and per-player backend contracts.
• Add nullable Android device-tier, target-buffer, adaptive-downgrade, Surface-rebuild, and selected-video-bitrate playback diagnostics.