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修复自动下一集黑屏：Surface 未绑定到重建后的引擎

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自动下一集换集时 PlayerManager.clear() 先把 spec 置空，preparePlayer() 随后重建
引擎并回调 onPlayerRebuild()；此时 isOwner() 为 false，setRender() 整段被跳过，
render 值不变。attachSurface() 原来只按“PlayerView.getPlayer() 是否为空”判断，
而 View 上仍挂着上一集已 release() 的旧引擎（非空），于是新引擎从未拿到 Surface：
解码器能初始化、能到 READY、音频正常，但零视频帧 —— 表现为有声音、全黑无画面，
必须手动切换播放核心或软硬解才恢复（两者都会重新走 onPlayerRebuild → setRender
→ detach+attach，顺带完成缺失的重绑）。

改为按引擎实例身份判断并强制重绑：同引擎跳过（未重建时的正常换集行为完全不变），
不同引擎先 setPlayer(null) 再 setPlayer(next)。

用户设备修复前日志确证：换集边界 render=0/target=0 使重绑分支被跳过、无
"attach after setPlayer"、READY 后长时间无 first-frame；随后一次偶然的引擎重建
重新绑定后立刻出现首帧。该偶然重建来自已被 56ebd07f1 整体删除的音频指纹去广告
rebuildAudioPipeline()，这正是缺陷在近期才频繁出现的原因。

Verification: PlaybackOwnershipSourceTest 16/16 通过（新增 kernelRebuildBindsTheNewEngineToThePlayerViewByInstanceIdentity）；revert 生产改动后该用例 FAILED，证明确实锁定本次修复；双 flavor Java 编译 BUILD SUCCESSFUL；scripts/build_arm64_debug_install.sh --flavor mobile --serial 192.168.50.3:5555 构建成功并 install -r 覆盖安装（未卸载），启动与界面渲染正常、logcat 无 FATAL EXCEPTION

Task-Guard: autonext-black-screen

Verification: PlaybackOwnershipSourceTest 16/16 passed (new kernelRebuildBindsTheNewEngineToThePlayerViewByInstanceIdentity); falsified by stashing the production change => that test FAILED; compileMobileArm64_v8aDebugJavaWithJavac + compileLeanbackArm64_v8aDebugJavaWithJavac BUILD SUCCESSFUL; build_arm64_debug_install.sh --flavor mobile --serial 192.168.50.3:5555 built and install -r succeeded, app booted/rendered with zero FATAL EXCEPTION

Task-Guard: autonext-black-screen
This commit is contained in:
Silent1566 2026-10-08 19:40:31 +08:00
commit 5096941a40
3 changed files with 204 additions and 2 deletions
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