fix(dash): [PKG-DASH-SEEK-01] recover paused boundary seeks in SDK 4.5.2

2026-10-20 20:21:20 -08:00 · 2026-09-14 20:19:04 +08:00
1 parent 442e1dcc96
commit 30f646be97
@@ -0,0 +1,990 @@
+{
+  "schemaVersion": 1,
+  "task": "PKG-DASH-SEEK-01",
+  "sourceHead": "442e1dcc961111b5f91de060d49b750f10a73e0d",
+  "scope": "Production compatibility repair for dash.js 4.5.2 stale metric scheduling after an empty-boundary seek. Not full DASH or release acceptance.",
+  "environment": {
+    "node": "24.21.0",
+    "yarn": "1.22.22",
+    "platform": "win32",
+    "remoteCI": false,
+    "physicalDevices": false
+  },
+  "source": [
+    {
+      "file": "packages/artplayer-plugin-dash-control/src/seek-buffer.ts",
+      "sha256LF": "ed86e48fabeac02a13cb4e7b6bd41b04bc55e432ae1d995cc432917cfaf1c33f"
+    },
+    {
+      "file": "packages/artplayer-plugin-dash-control/src/sdk-events.ts",
+      "sha256LF": "97fdabfc6f1484ae0e95e2970ee88a6be1d71d52512db36ddf6407f3a7737570"
+    },
+    {
+      "file": "packages/artplayer-plugin-dash-control/src/types.ts",
+      "sha256LF": "f1a7aaf9c273054d9584432c5d7ce43e00b339091859bb1c926f12e63ed17b03"
+    },
+    {
+      "file": "test/dash-events.test.js",
+      "sha256LF": "4a952e59a0fd593188defe8c189248a26fbaccb1cf5ce74ae9461565ece0d9c4"
+    },
+    {
+      "file": "test/browser/dash-sdk.spec.js",
+      "sha256LF": "b633a650c46868c3d7bbd58d386e967f14b0b7bdf1b39a6b5d90b5edd089dbcc"
+    },
+    {
+      "file": "test/browser/dash-seek-diagnostics.js",
+      "sha256LF": "4020b044968343eae681889a647c33dd0810000150a0f6d0140e32baa58813f6"
+    }
+  ],
+  "artifacts": [
+    {
+      "file": "refactor/.cache/dash-package-types-tt3sEt/runtime/artplayer-plugin-dash-control.js",
+      "member": "package/dist/artplayer-plugin-dash-control.js",
+      "sha256": "a89652cb033d5d77d29d0084c36a5419d0a17b9a3e5a01269e4ab1d44dded55f",
+      "archiveSha256": "18b3df88479703e596bbf1d8fdca8fabe4ac73e34c34b73133b1749fbc0ef093"
+    },
+    {
+      "file": "refactor/.cache/dash-package-types-tt3sEt/runtime/artplayer-plugin-dash-control.legacy.js",
+      "member": "package/dist/artplayer-plugin-dash-control.legacy.js",
+      "sha256": "a21449b34ab4e7e81948117f7803123eb78e6dd63282d6a46f8c67fb7f4f2fc3",
+      "archiveSha256": "18b3df88479703e596bbf1d8fdca8fabe4ac73e34c34b73133b1749fbc0ef093"
+    },
+    {
+      "file": "refactor/.cache/dash-package-types-tt3sEt/runtime/artplayer-plugin-dash-control.mjs",
+      "member": "package/dist/artplayer-plugin-dash-control.mjs",
+      "sha256": "e07c946bf5626ef2a7dcfa6eb6b96ee63009205145ddafd73d8040f10144a6a7",
+      "archiveSha256": "18b3df88479703e596bbf1d8fdca8fabe4ac73e34c34b73133b1749fbc0ef093"
+    }
+  ],
+  "reports": [
+    {
+      "role": "Negative counterfactual; original assertion remains failed",
+      "directory": "refactor/.cache/dash-getter-probe-report",
+      "reportSha256": "d8887dc7c578238811e388daca8769e268c1e6b13a090ea934ea19a4f5914c17",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep",
+          "native SDK track switch",
+          "--workers=1"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T11:38:11.152Z",
+        "duration": 51182.368,
+        "expected": 2,
+        "skipped": 0,
+        "unexpected": 2,
+        "flaky": 0
+      },
+      "cases": 4,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "011ea0e7ee2b15d29f9bd991a7a86644f9d72a02e7f0f330ebe26603a6714acd",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        },
+        {
+          "sdk": "5.2.1",
+          "sdkArchiveSha256": "4eacb0cc3525276666ca3f084611cdabb5a2264d128dfe0750fe106fbddd088f",
+          "sdkCodeMember": "package/dist/modern/umd/dash.all.min.js",
+          "candidateSha256": "011ea0e7ee2b15d29f9bd991a7a86644f9d72a02e7f0f330ebe26603a6714acd",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [],
+      "failures": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  323 |     })\n  324 |     await page.locator('#play').click()\n> 325 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  326 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  327 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  328 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:325:82"
+          ]
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  323 |     })\n  324 |     await page.locator('#play').click()\n> 325 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  326 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  327 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  328 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:325:82"
+          ]
+        }
+      ],
+      "diagnostics": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-getter",
+          "advanced": false,
+          "records": [
+            {
+              "type": "video",
+              "reads": 0,
+              "adjusted": 0
+            },
+            {
+              "type": "audio",
+              "reads": 0,
+              "adjusted": 0
+            }
+          ],
+          "beforeTime": 6,
+          "attachmentSha256": "3cd75242d35548d2f5e8c0d21eec5cca01a37267f9e245aab9ca4cb978d005d7"
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-getter",
+          "advanced": false,
+          "records": [
+            {
+              "type": "video",
+              "reads": 0,
+              "adjusted": 0
+            },
+            {
+              "type": "audio",
+              "reads": 0,
+              "adjusted": 0
+            }
+          ],
+          "beforeTime": 6,
+          "attachmentSha256": "99c16984f7df69902ff3f7eee134a57167a331eff1ec817d438088d597bbdcf7"
+        }
+      ]
+    },
+    {
+      "role": "Four original failures recover after diagnostic metric write; not acceptance",
+      "directory": "refactor/.cache/dash-metric-repeat-report",
+      "reportSha256": "ca2c564e13f0310ccb88b678a5830c6a7e5b3eaa9e5a5637f6b58949209068f8",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep",
+          "dash.js 4.5.2: native SDK",
+          "--repeat-each=2",
+          "--workers=1"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T11:42:54.123Z",
+        "duration": 58608.347,
+        "expected": 0,
+        "skipped": 0,
+        "unexpected": 4,
+        "flaky": 0
+      },
+      "cases": 4,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "011ea0e7ee2b15d29f9bd991a7a86644f9d72a02e7f0f330ebe26603a6714acd",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [],
+      "failures": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  351 |     })\n  352 |     await page.locator('#play').click()\n> 353 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  354 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  355 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  356 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:353:82"
+          ]
+        },
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  351 |     })\n  352 |     await page.locator('#play').click()\n> 353 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  354 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  355 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  356 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:353:82"
+          ]
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  351 |     })\n  352 |     await page.locator('#play').click()\n> 353 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  354 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  355 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  356 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:353:82"
+          ]
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  351 |     })\n  352 |     await page.locator('#play').click()\n> 353 |     await expect.poll(() => page.evaluate(() => window.nativeVideo.currentTime)).toBeGreaterThan(6.2)\n      |                                                                                  ^\n  354 |     expect(await page.evaluate(() => window.nativePlay)).toBe('fulfilled')\n  355 |     expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  356 |     expect(await page.evaluate(() => window.Artplayer.instances.length)).toBe(0)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:353:82"
+          ]
+        }
+      ],
+      "diagnostics": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-metric",
+          "advanced": true,
+          "records": [
+            {
+              "type": "video",
+              "cached": 2.807,
+              "corrected": 0,
+              "time": 6,
+              "range": null
+            }
+          ],
+          "settingsUnchanged": true,
+          "beforeTime": 6,
+          "afterMetricTime": 6,
+          "attachmentSha256": "ec72d9603c37207a2023543c9957918845ccfd14a6a8176079c28ca9a10ce83e"
+        },
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-metric",
+          "advanced": true,
+          "records": [
+            {
+              "type": "video",
+              "cached": 2.862,
+              "corrected": 0,
+              "time": 6,
+              "range": null
+            }
+          ],
+          "settingsUnchanged": true,
+          "beforeTime": 6,
+          "afterMetricTime": 6,
+          "attachmentSha256": "c15d4f2b1b4392398437b895b08a181020b2ffce700876919d8c7d5c73b8f710"
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-metric",
+          "advanced": true,
+          "records": [
+            {
+              "type": "video",
+              "cached": 2.788,
+              "corrected": 0,
+              "time": 6,
+              "range": null
+            }
+          ],
+          "settingsUnchanged": true,
+          "beforeTime": 6,
+          "afterMetricTime": 6,
+          "attachmentSha256": "646f6191a17f1982682f5f4e00c80a23e5c36c290e2a759f3571ad5af4354052"
+        },
+        {
+          "project": "firefox",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-metric",
+          "advanced": true,
+          "records": [
+            {
+              "type": "video",
+              "cached": 2.749,
+              "corrected": 0,
+              "time": 6,
+              "range": null
+            }
+          ],
+          "settingsUnchanged": true,
+          "beforeTime": 6,
+          "afterMetricTime": 6,
+          "attachmentSha256": "97b5bf72c3cc9c669b7e8755be94cfcdc88cd0be54a825f806f8e8780edfa2ac"
+        }
+      ]
+    },
+    {
+      "role": "Candidate before this repair, same strict boundary test",
+      "directory": "refactor/.cache/dash-seek-candidate-red-report",
+      "reportSha256": "3449fb4735082fa54660375cc99c42ecc2111a01f3877b10abae98865d84237b",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep",
+          "DASH 4.5.2: stable paused boundary",
+          "--workers=1"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T11:48:44.762Z",
+        "duration": 58998.359,
+        "expected": 0,
+        "skipped": 0,
+        "unexpected": 4,
+        "flaky": 0
+      },
+      "cases": 4,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "011ea0e7ee2b15d29f9bd991a7a86644f9d72a02e7f0f330ebe26603a6714acd",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-before-seek-recovery.js",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "unexpected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "unexpected"
+        },
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "unexpected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "unexpected"
+        }
+      ],
+      "failures": [
+        {
+          "project": "chromium",
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  317 |   })\n  318 |   await page.locator('#play').click()\n> 319 |   await expect.poll(() => page.evaluate(() => (window.art?.video || window.nativeVideo).currentTime)).toBeGreaterThan(6.2)\n      |                                                                                                       ^\n  320 | }\n  321 |\n  322 | for (const core of ['published', 'candidate']) {\n    at seekAtEmptyBoundary (D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:319:103)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:326:7",
+            "Error: Unhandled browser errors\n\n\u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected  - 1\u001b[39m\n\u001b[31m+ Received  + 3\u001b[39m\n\n\u001b[32m- Array []\u001b[39m\n\u001b[31m+ Array [\u001b[39m\n\u001b[31m+   \"The play() request was interrupted by a new load request. https://goo.gl/LdLk22\",\u001b[39m\n\u001b[31m+ ]\u001b[39m\n\n   at fixtures.js:29\n\n  27 |         }).catch(() => null)\n  28 |     await testInfo.attach('browser-evidence', { contentType: 'application/json', body: JSON.stringify({ browser: browser.version(), platform: process.platform, manifest, state, errors, consoleErrors, failedRequests }, null, 2) })\n> 29 |     expect(errors, 'Unhandled browser errors').toEqual([])\n     |                                                ^\n  30 |   }, { auto: true }],\n  31 | })\n  32 |\n    at Object.base.extend.diagnostics.auto (D:\\github\\ArtPlayer\\test\\browser\\fixtures.js:29:48)"
+          ]
+        },
+        {
+          "project": "chromium",
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  317 |   })\n  318 |   await page.locator('#play').click()\n> 319 |   await expect.poll(() => page.evaluate(() => (window.art?.video || window.nativeVideo).currentTime)).toBeGreaterThan(6.2)\n      |                                                                                                       ^\n  320 | }\n  321 |\n  322 | for (const core of ['published', 'candidate']) {\n    at seekAtEmptyBoundary (D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:319:103)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:326:7",
+            "Error: Unhandled browser errors\n\n\u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected  - 1\u001b[39m\n\u001b[31m+ Received  + 3\u001b[39m\n\n\u001b[32m- Array []\u001b[39m\n\u001b[31m+ Array [\u001b[39m\n\u001b[31m+   \"The play() request was interrupted by a new load request. https://goo.gl/LdLk22\",\u001b[39m\n\u001b[31m+ ]\u001b[39m\n\n   at fixtures.js:29\n\n  27 |         }).catch(() => null)\n  28 |     await testInfo.attach('browser-evidence', { contentType: 'application/json', body: JSON.stringify({ browser: browser.version(), platform: process.platform, manifest, state, errors, consoleErrors, failedRequests }, null, 2) })\n> 29 |     expect(errors, 'Unhandled browser errors').toEqual([])\n     |                                                ^\n  30 |   }, { auto: true }],\n  31 | })\n  32 |\n    at Object.base.extend.diagnostics.auto (D:\\github\\ArtPlayer\\test\\browser\\fixtures.js:29:48)"
+          ]
+        },
+        {
+          "project": "firefox",
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  317 |   })\n  318 |   await page.locator('#play').click()\n> 319 |   await expect.poll(() => page.evaluate(() => (window.art?.video || window.nativeVideo).currentTime)).toBeGreaterThan(6.2)\n      |                                                                                                       ^\n  320 | }\n  321 |\n  322 | for (const core of ['published', 'candidate']) {\n    at seekAtEmptyBoundary (D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:319:103)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:326:7",
+            "Error: Unhandled browser errors\n\n\u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected  - 1\u001b[39m\n\u001b[31m+ Received  + 3\u001b[39m\n\n\u001b[32m- Array []\u001b[39m\n\u001b[31m+ Array [\u001b[39m\n\u001b[31m+   \"The fetching process for the media resource was aborted by the user agent at the user's request.\",\u001b[39m\n\u001b[31m+ ]\u001b[39m\n\n   at fixtures.js:29\n\n  27 |         }).catch(() => null)\n  28 |     await testInfo.attach('browser-evidence', { contentType: 'application/json', body: JSON.stringify({ browser: browser.version(), platform: process.platform, manifest, state, errors, consoleErrors, failedRequests }, null, 2) })\n> 29 |     expect(errors, 'Unhandled browser errors').toEqual([])\n     |                                                ^\n  30 |   }, { auto: true }],\n  31 | })\n  32 |\n    at Object.base.extend.diagnostics.auto (D:\\github\\ArtPlayer\\test\\browser\\fixtures.js:29:48)"
+          ]
+        },
+        {
+          "project": "firefox",
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  317 |   })\n  318 |   await page.locator('#play').click()\n> 319 |   await expect.poll(() => page.evaluate(() => (window.art?.video || window.nativeVideo).currentTime)).toBeGreaterThan(6.2)\n      |                                                                                                       ^\n  320 | }\n  321 |\n  322 | for (const core of ['published', 'candidate']) {\n    at seekAtEmptyBoundary (D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:319:103)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:326:7",
+            "Error: Unhandled browser errors\n\n\u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected  - 1\u001b[39m\n\u001b[31m+ Received  + 3\u001b[39m\n\n\u001b[32m- Array []\u001b[39m\n\u001b[31m+ Array [\u001b[39m\n\u001b[31m+   \"The fetching process for the media resource was aborted by the user agent at the user's request.\",\u001b[39m\n\u001b[31m+ ]\u001b[39m\n\n   at fixtures.js:29\n\n  27 |         }).catch(() => null)\n  28 |     await testInfo.attach('browser-evidence', { contentType: 'application/json', body: JSON.stringify({ browser: browser.version(), platform: process.platform, manifest, state, errors, consoleErrors, failedRequests }, null, 2) })\n> 29 |     expect(errors, 'Unhandled browser errors').toEqual([])\n     |                                                ^\n  30 |   }, { auto: true }],\n  31 | })\n  32 |\n    at Object.base.extend.diagnostics.auto (D:\\github\\ArtPlayer\\test\\browser\\fixtures.js:29:48)"
+          ]
+        }
+      ],
+      "diagnostics": []
+    },
+    {
+      "role": "Source repair strict boundary regression before final identity guard strengthening",
+      "directory": "refactor/.cache/dash-seek-source-green-report",
+      "reportSha256": "79a3622dea01bf6a60b9707da481926e5bab4dd5d63586f5c2cde8be4a920574",
+      "result": {
+        "scope": "source",
+        "exitCode": 0,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep",
+          "stable paused boundary",
+          "--workers=1"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T11:50:29.292Z",
+        "duration": 48716.598000000005,
+        "expected": 8,
+        "skipped": 0,
+        "unexpected": 0,
+        "flaky": 0
+      },
+      "cases": 8,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "ef2025408d6df4df5ecd6c33b3c0313b239c8ae1b4bfbad8c6bb9c43f474e866",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        },
+        {
+          "sdk": "5.2.1",
+          "sdkArchiveSha256": "4eacb0cc3525276666ca3f084611cdabb5a2264d128dfe0750fe106fbddd088f",
+          "sdkCodeMember": "package/dist/modern/umd/dash.all.min.js",
+          "candidateSha256": "ef2025408d6df4df5ecd6c33b3c0313b239c8ae1b4bfbad8c6bb9c43f474e866",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        }
+      ],
+      "failures": [],
+      "diagnostics": []
+    },
+    {
+      "role": "Initial artifact, frozen published plugin failure retained",
+      "directory": "refactor/.cache/dash-seek-main-initial-sdk-report",
+      "reportSha256": "71e3c1538376369bc3ebfc909459c8ad51bbf3dd7f2a8458553ce49e78899b7c",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep-invert",
+          "native SDK track switch",
+          "--workers=2"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T11:57:49.211Z",
+        "duration": 142580.167,
+        "expected": 79,
+        "skipped": 0,
+        "unexpected": 1,
+        "flaky": 0
+      },
+      "cases": 80,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "0a7b4794473ee6f00d3504ca150448b198d7ca970e2e8efca1c236de6ed02d6b",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-57Y2kT\\runtime\\artplayer-plugin-dash-control.js",
+          "diagnostic": null
+        },
+        {
+          "sdk": "5.2.1",
+          "sdkArchiveSha256": "4eacb0cc3525276666ca3f084611cdabb5a2264d128dfe0750fe106fbddd088f",
+          "sdkCodeMember": "package/dist/modern/umd/dash.all.min.js",
+          "candidateSha256": "0a7b4794473ee6f00d3504ca150448b198d7ca970e2e8efca1c236de6ed02d6b",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-57Y2kT\\runtime\\artplayer-plugin-dash-control.js",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        }
+      ],
+      "failures": [
+        {
+          "project": "firefox",
+          "title": "candidate core / published DASH / 4.5.2: real MPD decoding and UI selection",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  270 |       })\n  271 |       await page.locator('#play').click()\n> 272 |       await expect.poll(() => page.evaluate(() => window.art.currentTime)).toBeGreaterThan(6.2)\n      |                                                                            ^\n  273 |       expect(await page.evaluate(() => window.sdkErrors)).toEqual([])\n  274 |       await testInfo.attach('dash-sdk-playing', { contentType: 'image/png', body: await page.screenshot() })\n  275 |     })\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:272:76",
+            "Error: Unhandled browser errors\n\n\u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoEqual\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m) // deep equality\u001b[22m\n\n\u001b[32m- Expected  - 1\u001b[39m\n\u001b[31m+ Received  + 3\u001b[39m\n\n\u001b[32m- Array []\u001b[39m\n\u001b[31m+ Array [\u001b[39m\n\u001b[31m+   \"The fetching process for the media resource was aborted by the user agent at the user's request.\",\u001b[39m\n\u001b[31m+ ]\u001b[39m\n\n   at fixtures.js:29\n\n  27 |         }).catch(() => null)\n  28 |     await testInfo.attach('browser-evidence', { contentType: 'application/json', body: JSON.stringify({ browser: browser.version(), platform: process.platform, manifest, state, errors, consoleErrors, failedRequests }, null, 2) })\n> 29 |     expect(errors, 'Unhandled browser errors').toEqual([])\n     |                                                ^\n  30 |   }, { auto: true }],\n  31 | })\n  32 |\n    at Object.base.extend.diagnostics.auto (D:\\github\\ArtPlayer\\test\\browser\\fixtures.js:29:48)"
+          ]
+        }
+      ],
+      "diagnostics": []
+    },
+    {
+      "role": "Final main runtime bytes; historical native SDK and old-plugin cases excluded only from this invocation",
+      "directory": "refactor/.cache/dash-seek-main-final-sdk-report",
+      "reportSha256": "0cb1b0abd5782bd5ea359c52a404caffb6345696b24c13ee2ed216a8f3e2e1f0",
+      "result": {
+        "scope": "source",
+        "exitCode": 0,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep-invert",
+          "native SDK track switch|published DASH / 4.5.2",
+          "--workers=2"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T12:03:38.248Z",
+        "duration": 124451.803,
+        "expected": 76,
+        "skipped": 0,
+        "unexpected": 0,
+        "flaky": 0
+      },
+      "cases": 76,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "a89652cb033d5d77d29d0084c36a5419d0a17b9a3e5a01269e4ab1d44dded55f",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-tt3sEt\\runtime\\artplayer-plugin-dash-control.js",
+          "diagnostic": null
+        },
+        {
+          "sdk": "5.2.1",
+          "sdkArchiveSha256": "4eacb0cc3525276666ca3f084611cdabb5a2264d128dfe0750fe106fbddd088f",
+          "sdkCodeMember": "package/dist/modern/umd/dash.all.min.js",
+          "candidateSha256": "a89652cb033d5d77d29d0084c36a5419d0a17b9a3e5a01269e4ab1d44dded55f",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-tt3sEt\\runtime\\artplayer-plugin-dash-control.js",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        }
+      ],
+      "failures": [],
+      "diagnostics": []
+    },
+    {
+      "role": "Final legacy runtime bytes; 75 pass and SDK 5.2.1 menu visibility failure retained",
+      "directory": "refactor/.cache/dash-seek-legacy-final-sdk-report",
+      "reportSha256": "74a3924972eeb7f3b22a3595bb1d5450088bba025cc83e022066fd3820989d8a",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--project=firefox",
+          "--grep-invert",
+          "native SDK track switch|published DASH / 4.5.2",
+          "--workers=2"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T12:09:50.376Z",
+        "duration": 142553.80599999998,
+        "expected": 75,
+        "skipped": 0,
+        "unexpected": 1,
+        "flaky": 0
+      },
+      "cases": 76,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36",
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:155.0) Gecko/20100101 Firefox/155.0"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "a21449b34ab4e7e81948117f7803123eb78e6dd63282d6a46f8c67fb7f4f2fc3",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-tt3sEt\\runtime\\artplayer-plugin-dash-control.legacy.js",
+          "diagnostic": null
+        },
+        {
+          "sdk": "5.2.1",
+          "sdkArchiveSha256": "4eacb0cc3525276666ca3f084611cdabb5a2264d128dfe0750fe106fbddd088f",
+          "sdkCodeMember": "package/dist/modern/umd/dash.all.min.js",
+          "candidateSha256": "a21449b34ab4e7e81948117f7803123eb78e6dd63282d6a46f8c67fb7f4f2fc3",
+          "candidate": "D:\\github\\ArtPlayer\\refactor\\.cache\\dash-package-types-tt3sEt\\runtime\\artplayer-plugin-dash-control.legacy.js",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "chromium",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "published core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 4.5.2: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        },
+        {
+          "title": "candidate core / candidate DASH 5.2.1: stable paused boundary seek preserves media and SDK ownership",
+          "project": "firefox",
+          "status": "expected"
+        }
+      ],
+      "failures": [
+        {
+          "project": "chromium",
+          "title": "published core / DASH 5.2.1: actual settings quality selection survives SDK refresh",
+          "status": "timedOut",
+          "errors": [
+            "\u001b[31mTest timeout of 20000ms exceeded.\u001b[39m",
+            "Error: locator.click: Test timeout of 20000ms exceeded.\nCall log:\n\u001b[2m  - waiting for locator('.art-setting-panel.art-current .art-setting-item-left-text').filter({ hasText: /^180p$/ })\u001b[22m\n\u001b[2m    - locator resolved to <div class=\"art-setting-item-left-text\">180p</div>\u001b[22m\n\u001b[2m  - attempting click action\u001b[22m\n\u001b[2m    2 × waiting for element to be visible, enabled and stable\u001b[22m\n\u001b[2m      - element is not stable\u001b[22m\n\u001b[2m    - retrying click action\u001b[22m\n\u001b[2m    - waiting 20ms\u001b[22m\n\u001b[2m    2 × waiting for element to be visible, enabled and stable\u001b[22m\n\u001b[2m      - element is not visible\u001b[22m\n\u001b[2m    - retrying click action\u001b[22m\n\u001b[2m      - waiting 100ms\u001b[22m\n\u001b[2m    36 × waiting for element to be visible, enabled and stable\u001b[22m\n\u001b[2m       - element is not visible\u001b[22m\n\u001b[2m     - retrying click action\u001b[22m\n\u001b[2m       - waiting 500ms\u001b[22m\n\n\n  339 |         await page.locator('.art-control-setting').click()\n  340 |         await page.locator(`[data-name=\"dash-${type}\"]`).click()\n> 341 |         await page.locator('.art-setting-panel.art-current .art-setting-item-left-text').filter({ hasText: new RegExp(`^${label}$`) }).click()\n      |                                                                                                                                        ^\n  342 |         if (type === 'quality') {\n  343 |           await expect.poll(() => page.evaluate(() => ({ height: window.art.video.videoHeight, auto: window.art.dash.getSettings().streaming.abr.autoSwitchBitrate.video }))).toEqual({ height: 180, auto: false })\n  344 |         }\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:341:136"
+          ]
+        }
+      ],
+      "diagnostics": []
+    },
+    {
+      "role": "Extracted diagnostic helper, original bare-SDK assertion remains failed",
+      "directory": "refactor/.cache/dash-seek-metric-helper-final-report",
+      "reportSha256": "b3d4c238543f5949944be438761c8390dff27c17624dbd38761601b7ec16bfee",
+      "result": {
+        "scope": "source",
+        "exitCode": 1,
+        "signal": null,
+        "args": [
+          "test",
+          "--config=playwright.source.config.js",
+          "test/browser/dash-sdk.spec.js",
+          "--project=chromium",
+          "--grep",
+          "dash.js 4.5.2: native SDK track switch",
+          "--workers=1"
+        ]
+      },
+      "stats": {
+        "startTime": "2026-09-14T12:13:45.782Z",
+        "duration": 15693.702,
+        "expected": 0,
+        "skipped": 0,
+        "unexpected": 1,
+        "flaky": 0
+      },
+      "cases": 1,
+      "retries": 0,
+      "environment": [
+        "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/153.0.8010.12 Safari/537.36"
+      ],
+      "inputs": [
+        {
+          "sdk": "4.5.2",
+          "sdkArchiveSha256": "9a0944c48deb0fd8f92b0eea436c5b0d0aea9237c7da0078c0310f1430d0a31f",
+          "sdkCodeMember": "package/dist/dash.all.min.js",
+          "candidateSha256": "b9c81fe7223b79775b5c2d3b9dbc79477b7e993201a8412fba81143df39972cf",
+          "candidate": "workspace source build",
+          "diagnostic": null
+        }
+      ],
+      "stableBoundaryCases": [],
+      "failures": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "status": "failed",
+          "errors": [
+            "Error: \u001b[2mexpect(\u001b[22m\u001b[31mreceived\u001b[39m\u001b[2m).\u001b[22mtoBeGreaterThan\u001b[2m(\u001b[22m\u001b[32mexpected\u001b[39m\u001b[2m)\u001b[22m\n\nExpected: > \u001b[32m6.2\u001b[39m\nReceived:   \u001b[31m6\u001b[39m\n\nCall Log:\n- Timeout 7000ms exceeded while waiting on the predicate\n\n  269 |   })\n  270 |   await page.locator('#play').click()\n> 271 |   await expect.poll(() => page.evaluate(() => (window.art?.video || window.nativeVideo).currentTime)).toBeGreaterThan(6.2)\n      |                                                                                                       ^\n  272 | }\n  273 |\n  274 | for (const core of ['published', 'candidate']) {\n    at seekAtEmptyBoundary (D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:271:103)\n    at D:\\github\\ArtPlayer\\test\\browser\\dash-sdk.spec.js:323:5"
+          ]
+        }
+      ],
+      "diagnostics": [
+        {
+          "project": "chromium",
+          "title": "dash.js 4.5.2: native SDK track switch and paused seek without ArtPlayer",
+          "name": "diagnostic-buffer-metric",
+          "advanced": true,
+          "records": [
+            {
+              "type": "video",
+              "cached": 2.84,
+              "corrected": 0,
+              "time": 6,
+              "range": null
+            }
+          ],
+          "settingsUnchanged": true,
+          "beforeTime": 6,
+          "afterMetricTime": 6,
+          "attachmentSha256": "3dfdb05c65d93bff7281db436ad54e1be260198a201a44f3a87da0a127332ee0"
+        }
+      ]
+    }
+  ],
+  "packageTypes": {
+    "file": "refactor/.cache/dash-package-types-8CjCBf/report.json",
+    "sha256": "878e65e25a760ff76748b5006da94a4fa501618bc24f290234df1356818efd25",
+    "archives": [
+      {
+        "name": "artplayer",
+        "sha256": "d4a0cc5dcbe015e254b3bce64d505ee4e010792ab70414bcf8d0139d7c413b75"
+      },
+      {
+        "name": "artplayer-plugin-dash-control",
+        "sha256": "5f3fa80f04392d6bbd8ed46d2e1a2fedcf742eeb907b07c40b6edb815079f44b"
+      }
+    ],
+    "matrix": [
+      {
+        "compiler": "5.9.3",
+        "mode": "node10-commonjs",
+        "diagnostics": 0,
+        "invalidRejected": 8
+      },
+      {
+        "compiler": "5.9.3",
+        "mode": "nodenext-cjs",
+        "diagnostics": 0,
+        "invalidRejected": 8
+      },
+      {
+        "compiler": "5.9.3",
+        "mode": "nodenext-esm",
+        "diagnostics": 0,
+        "invalidRejected": 8
+      },
+      {
+        "compiler": "5.9.3",
+        "mode": "bundler-esm",
+        "diagnostics": 0,
+        "invalidRejected": 8
+      },
+      {
+        "compiler": "4.3.5",
+        "mode": "node10-commonjs",
+        "diagnostics": 0,
+        "invalidRejected": 8
+      }
+    ],
+    "runtimeBytesMatchBrowserInputs": true,
+    "method": "Offline Yarn installation and frozen reinstallation outside workspace; all installed file hashes verified. Browser tests load extracted earlier tarball bytes identical to final packed runtime; not a full installed browser suite."
+  },
+  "node": {
+    "file": "refactor/.cache/dash-seek-artifact-node-final.log",
+    "sha256": "c4ca56f28948de13e8b374e704ef8dd8a5398ae29468fb4ea8cddccce6c32d88",
+    "passed": 414,
+    "failed": 0,
+    "skipped": 0,
+    "scope": "source plus three extracted tarball formats and historical contracts"
+  },
+  "checks": {
+    "strictPackageTypeScript": "exit 0",
+    "rootLint": {
+      "file": "refactor/.cache/dash-seek-lint.log",
+      "sha256": "51b9b3f7ac85138eea089c5431e7b9bd60736814d6595a3dec9174e42baf7390",
+      "errors": 0,
+      "warnings": 1
+    },
+    "diagnosticGuards": {
+      "patchedSdkExitCode": 1,
+      "mixedExitCode": 1
+    }
+  },
+  "limitations": [
+    "DASH-SEEK-01 stays open for standalone SDK 4.5.2 and frozen published plugins",
+    "DASH-MENU-01 tracks legacy SDK 5.2.1 settings click visibility failure; no root-cause claim",
+    "Full CI source suite remains failing on the original native SDK control; no committed exclusions or expected-failure marks",
+    "WebKit, devices and final package/global release reviews are not completed by this repair"
+  ]
+}
@@ -0,0 +1,78 @@
+# PKG-DASH-SEEK-01：旧 SDK 暂停跳转的缓冲指标修复
+
+## 行为与兼容边界
+
+dash.js 4.5.2 切换轨道、稳定暂停后，若 seek 目标正好位于视频缓冲末端，
+空裁剪分支没有刷新缓冲量。调度器继续读取暂停前约 2.8 秒的指标，停止下载，
+播放时间停在 6 秒。旧候选插件在新旧核心、Chromium/Firefox 的四个严格用例
+全部复现。生产修复后，相同目标及顺序恢复播放，SDK 5.2.1 对照不受影响。
+
+公开工厂、option、update、类型、事件、DOM/CSS 和分发入口保持原样。
+消费者仍通过原来的 `art.seek = 6` 操作，不需要更换 SDK 或调用新接口。
+涉及 API-02/04/05/07/09；不是对所有历史 SDK 本体的修复声明。
+
+## 模块与根因证据
+
+新增 `src/seek-buffer.ts`，仅负责 4.5.2 空缓冲指标同步；`sdk-events.ts`
+负责注册和释放 playbackSeeking 回调。精确版本、可用方法、正在 seeking、
+有限时间、实际范围为空、缓存量大于零、无正在进行或计划中的裁剪全部满足
+后，调用 SDK 自有 `addBufferLevel(type, new Date(), 0)`。读取指标以秒计、
+SDK 保存指标以毫秒计，这里只写实测零值，不存在非零单位换算。
+
+写入前再次验证 stream、metrics、video、时间与插件生命周期身份；销毁、
+替换 SDK、teardown 和重入均使陈旧回调失效。错误保留现有菜单并允许后续
+seek 重试。不创建异步任务、计时器或新资源管理器；回调复用现有订阅归属。
+
+只改 BufferController.getBufferLevel 的诊断在两引擎都未恢复，读取次数为零；
+调度器实际从 DashMetrics 读取。四个原生失败后，仅同步真实空范围对应指标，
+四次均恢复，配置和同步前后的时间不变。诊断保留原失败退出码，不能计入通过。
+诊断函数抽到 `test/browser/dash-seek-diagnostics.js`，显式开关不可混用，也不能
+搭配修改后的 SDK。抽取后另一次原生失败及随后的指标恢复验证了该诊断入口。
+
+拒绝 pruneAllSafely：该 SDK 方法不传时间时可能清空全部缓冲。
+拒绝伪造零长裁剪范围：不能提供真实裁剪完成语义。生产实现不替换 SDK 方法、
+不改 SDK 配置、不清缓冲、不设置媒体时间、不发送合成 DOM 媒体事件。
+根因源码及历史诊断另见 [原始记录](2026-09-12-PKG-DASH-05-seek-diagnosis.md)。
+
+## 实际验证
+
+环境为 Windows、Node 24.21.0、Yarn 1.22.22，Playwright Chromium 153.0.8010.12
+及 Firefox 155.0。完整输入指纹、退出码及失败内容见
+[机器证据](../baselines/dash-seek-recovery-validation.json)。
+
+| 范围 | 结果 |
+| --- | --- |
+| 修复前候选，4.5.2 × 新旧核心 × 两引擎，严格暂停跳转 | 4 失败，原报告保留 |
+| 修复后源码，4.5.2/5.2.1 × 新旧核心 × 两引擎，同一严格用例 | 8 通过 |
+| 最终源码与 main/legacy/ESM 三格式 Node 行为/生命周期/历史契约 | 414 通过、0 失败/跳过 |
+| 最终 main 的真实 SDK 定向矩阵 | 76 通过、0 跳过/重试 |
+| 最终 legacy 的同一矩阵 | 75 通过、1 失败，0 跳过/重试；其中严格跳转 8 项全通过 |
+| 最终含文档包，仓库外离线安装及冻结重装、公开类型 | 5 模式通过，每模式 8 个非法调用被拒绝 |
+| 包内严格 TypeScript、根 lint | 通过；根 lint 0 错误、1 个既有 warning |
+| 诊断开关混用、诊断搭配已改 SDK | 两种均在收集阶段拒绝 |
+
+浏览器输入来自 tt3sEt tarball 解出的运行时；最终含文档 8CjCBf tarball 的三个
+运行时 SHA 与它们逐一相等，安装检查也验证了所有文件。类型检查确实从仓库外
+安装包解析；浏览器用的是相同 tarball 字节，不能将其称作全包 installed 浏览器验收。
+
+main 初轮较宽矩阵 79 通过、1 个旧发布插件/4.5.2 失败也保留。最终 76 项命令
+仅在本次调用中排除了裸 SDK 与旧发布插件的历史对照；默认测试文件与 CI 没有
+添加 skip、预期失败、过滤或延长超时。完整源码 CI 中的裸 4.5.2 仍会失败。
+
+legacy 唯一失败是“旧核心 + 新插件 + SDK 5.2.1”的设置质量选择：180p 元素
+解析后先不稳定、随后不可见，点击超时。该 SDK 不进入本次 4.5.2 修复分支；
+这不证明菜单失败的根因或历史来源。登记 DASH-MENU-01 / PKG-DASH-MENU-01
+继续调查，保留截图、trace 和原断言，不以强制点击、重跑或忽略失败结案。
+
+## 交付与后续
+
+本次 4.5.2 修复任务完成；PKG-DASH-05/06、DASH-SEEK-01 的旧 SDK/旧插件边界、
+新菜单失败、WebKit/设备及全局三轮发布复盘仍开放。没有新增依赖、锁文件或
+公共声明变更。生产构建由仓库脚本生成，并同步 docs/compiled 三种格式。
+
+重跑使用 Node 固定版本和 Yarn：`yarn test:dash-control`、
+`yarn test:dash-types-package`；浏览器使用 `ARTPLAYER_DASH_ARTIFACT` 指定核验过的
+main/legacy 文件后执行 `yarn test:browser:source test/browser/dash-sdk.spec.js
+--project=chromium --project=firefox --workers=2`。不加过滤会包含原始历史失败对照。
+回退本任务的独立提交并重建 DASH 三格式即可恢复修复前行为。禁止只回退生成文件。
+本地提交后运行提交审计再启动下一项；没有 push、部署或 npm 发布。
@@ -83,7 +83,19 @@ UMD 测试 VM 显式注入宿主 console，以检查原始错误身份；没有
 ## 05 暂停 seek 诊断

 实际 SDK 4.5.2 在不创建 ArtPlayer 的稳定暂停用例中也会停滞，SDK 5.2.1 的对应用例通过。
-根因与空裁剪分支漏更新缓冲指标有关，DASH-SEEK-01 仍 open；没有发布兼容补丁。
-`dash-buffer-observer.js` 记录原生 SourceBuffer/SDK 指标，两个显式诊断环境变量只用于
+根因与空裁剪分支漏更新缓冲指标有关，DASH-SEEK-01 仍 open。PKG-DASH-SEEK-01
+已完成仅针对4.5.2的插件兼容处理；原始SDK本体及旧插件对照仍保留失败。
+`dash-buffer-observer.js` 记录原生 SourceBuffer/SDK 指标，原有显式诊断环境变量只用于
 失败后的合成事件和内存 SDK 补丁对照，不能用于正式验收。命令、证据、限制和回退见
 [seek 根因记录](changes/2026-09-12-PKG-DASH-05-seek-diagnosis.md)。
+
+新增GETTER/METRICS诊断由 `dash-seek-diagnostics.js` 承担，原断言失败后才执行，
+退出码仍失败。缓冲控制器getter替换未恢复调度；记录实际空缓冲指标后两引擎
+恢复。这些诊断不能混用或与修改后的SDK组合。正式实现 `src/seek-buffer.ts`
+不替换getter，在已有SDK事件订阅的生命周期内同步零指标，并检查旧SDK版本、
+真实目标范围、stream/media/metrics身份、清理与重入；生产及产物回归单独验收。
+
+见[修复及验证](changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md)：旧候选严格
+跳转4失败，新源码8通过，最终main/legacy各8个严格跳转通过。main完整定向76通过；
+legacy同范围75通过、1个SDK5.2.1设置点击不可见失败，归PKG-DASH-MENU-01继续调查。
+不将局部跳转修复等同于DASH组合/分发验收全部完成。
@@ -2,9 +2,9 @@

 > 由 tasks.json 生成。请修改数据后运行 `node refactor/scripts/plan.mjs --write`，不要手改本表。

-基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 259 项，范围 22 个包及工作区/示例。
+基线：`40fcda6a37d0049d42e49c1e64e70d4fd9ba5f7f`。总任务 261 项，范围 22 个包及工作区/示例。

-状态：todo 49 / doing 20 / blocked 0 / done 190 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。
+状态：todo 50 / doing 20 / blocked 0 / done 191 / deferred 0。风险 L/M/H 表示兼容风险，不表示工期。

 前置依赖是启动条件；验收是完成条件。任务可以继续拆分，但不能复用或悄悄删除旧 ID。

@@ -24,7 +24,7 @@
 | artplayer-plugin-chromecast | 1.1.0 | PKG-CAST-01, PKG-CAST-02, PKG-CAST-03, PKG-CAST-04, PKG-CAST-05, PKG-CAST-06 |
 | artplayer-plugin-danmuku | 5.3.0 | PKG-DANMUKU-01, PKG-DANMUKU-02, PKG-DANMUKU-03, PKG-DANMUKU-04, PKG-DANMUKU-05, PKG-DANMUKU-06, PKG-DANMUKU-07, PKG-DANMUKU-08, PKG-DANMUKU-09, PKG-DANMUKU-10, PKG-DANMUKU-11, PKG-DANMUKU-12 |
 | artplayer-plugin-danmuku-mask | 1.1.0 | PKG-MASK-01, PKG-MASK-02, PKG-MASK-03, PKG-MASK-04, PKG-MASK-05, PKG-MASK-06, ENG-LINT-01 |
-| artplayer-plugin-dash-control | 1.1.0 | PKG-DASH-01, PKG-DASH-02, PKG-DASH-03, PKG-DASH-04, PKG-DASH-05, PKG-DASH-06 |
+| artplayer-plugin-dash-control | 1.1.0 | PKG-DASH-01, PKG-DASH-02, PKG-DASH-03, PKG-DASH-04, PKG-DASH-SEEK-01, PKG-DASH-MENU-01, PKG-DASH-05, PKG-DASH-06 |
 | artplayer-plugin-document-pip | 1.1.0 | PKG-DPIP-01, PKG-DPIP-02, PKG-DPIP-03, PKG-DPIP-04, PKG-DPIP-05, PKG-DPIP-06 |
 | artplayer-plugin-hls-control | 1.1.0 | PKG-HLS-01, PKG-HLS-02, PKG-HLS-03, PKG-HLS-04, PKG-HLS-SDK-01, PKG-HLS-05, PKG-HLS-06 |
 | artplayer-plugin-jassub | 1.1.0 | PKG-JASSUB-01, PKG-JASSUB-02, PKG-JASSUB-03, PKG-JASSUB-04, PKG-JASSUB-05, PKG-JASSUB-06, PKG-JASSUB-07, PKG-JASSUB-08, PKG-JASSUB-09, PKG-JASSUB-10 |
@@ -218,8 +218,10 @@
 | PKG-DASH-02 | artplayer-plugin-dash-control<br>建立特有行为与错误测试 | PKG-DASH-01, ENG-03, ENG-05 | 保留已有 5 项稳定 ID 回归，补发布版 SDK 4.x/当前 5.x、音轨/空列表/过滤/换源与关闭引用 | 旧版本行为可重跑，成功/失败/切源/销毁有必要断言 | H | done |
 | PKG-DASH-03 | artplayer-plugin-dash-control<br>整理内部职责与资源 | PKG-DASH-02, CORE-11, CORE-14 | 能力适配保留 SDK 4.x 与 5.x，稳定 ID 映射、ABR 状态、UI 清理和生命周期职责分离 | 结构变化和缺陷修复分开记录；原 API/事件/资源生命周期通过 | H | done |
 | PKG-DASH-04 | artplayer-plugin-dash-control<br>迁移自有源码和公开类型 | PKG-DASH-03, ENG-04, ENG-06, CORE-07 | dash.js adapter、selector 和回调类型 | 严格类型检查、旧消费样例通过；声明路径/导出和同步异步兼容 | H | done |
-| PKG-DASH-05 | artplayer-plugin-dash-control<br>验证新旧核心和组合 | PKG-DASH-04, CORE-22 | 固定 dash.js 4.5.2/5.2.1 与本地 DASH 实际清晰度/音轨、高亮、Auto 和换源组合 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | H | doing |
-| PKG-DASH-06 | artplayer-plugin-dash-control<br>验证分发并同步文档 | PKG-DASH-05, ENG-07 | dash.control.js、支持的 dash.js 版本与产物 | tarball 入口/资源、类型、8082 demo 和 README 一致，有回退记录 | H | todo |
+| PKG-DASH-SEEK-01 | artplayer-plugin-dash-control<br>修复 SDK 4.5.2 暂停跳转后的缓冲指标停滞 | PKG-DASH-04 | 按版本和实测空缓冲限定的指标同步、生命周期守卫及真实 SDK 旧红新绿 | 新插件在新旧核心及 Chromium/Firefox 原位置回归通过；不修改 SDK 方法/配置、媒体时间或删除缓冲；旧 SDK 原生缺陷与旧插件限制独立记录，不宣称第三方本体已修复 | H | done |
+| PKG-DASH-MENU-01 | artplayer-plugin-dash-control<br>定位并修复 SDK 刷新期间设置选项不可见 | PKG-DASH-SEEK-01 | 真实 SDK 菜单点击失败根因、对应兼容修复及新旧核心回归 | 保留 legacy/旧核心/SDK5.2.1 的原失败；确定菜单在点击过程中不可见的原因；不靠 force 点击、扩大超时或重复运行覆盖问题；main/legacy 质量与音轨设置及 SDK 刷新组合通过 | H | todo |
+| PKG-DASH-05 | artplayer-plugin-dash-control<br>验证新旧核心和组合 | PKG-DASH-04, CORE-22, PKG-DASH-SEEK-01 | 固定 dash.js 4.5.2/5.2.1 与本地 DASH 实际清晰度/音轨、高亮、Auto 和换源组合 | 最终核心与原支持范围核心分别通过；设备/SDK 缺证据不能标完成 | H | doing |
+| PKG-DASH-06 | artplayer-plugin-dash-control<br>验证分发并同步文档 | PKG-DASH-05, ENG-07, PKG-DASH-MENU-01 | dash.control.js、支持的 dash.js 版本与产物 | tarball 入口/资源、类型、8082 demo 和 README 一致，有回退记录 | H | todo |

 ## 5 包迁移：artplayer-plugin-multiple-subtitles

@@ -560,6 +562,8 @@
 - PKG-DASH-02: [记录](changes/2026-09-12-PKG-DASH-02-tests.md) [记录](dash-validation.md) [记录](baselines/dash-validation.json)
 - PKG-DASH-03: [记录](changes/2026-09-12-PKG-DASH-03-runtime.md) [记录](baselines/dash-runtime.json) [记录](dash-validation.md)
 - PKG-DASH-04: [记录](changes/2026-09-12-PKG-DASH-04-types.md) [记录](baselines/dash-types-validation.json) [记录](dash-validation.md)
+- PKG-DASH-SEEK-01: [记录](changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md) [记录](baselines/dash-seek-recovery-validation.json)
+- PKG-DASH-MENU-01: [记录](changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md) [记录](baselines/dash-seek-recovery-validation.json)
 - PKG-DASH-05: [记录](changes/2026-09-12-PKG-DASH-05-sdk-checkpoint.md) [记录](baselines/dash-sdk.json) [记录](baselines/dash-sdk-checkpoint.json) [记录](dash-validation.md) [记录](changes/2026-09-12-PKG-DASH-05-sdk-types.md) [记录](baselines/dash-sdk-types-validation.json) [记录](changes/2026-09-12-PKG-DASH-05-sdk-events.md) [记录](baselines/dash-sdk-events-validation.json) [记录](changes/2026-09-12-PKG-DASH-05-seek-diagnosis.md) [记录](baselines/dash-seek-diagnosis.json)
 - PKG-MULTI-SUB-01: [记录](baselines/multiple-subtitles-release.json) [记录](baselines/multiple-subtitles-contract.md) [记录](baselines/multiple-subtitles-contract-validation.json) [记录](changes/2026-09-13-PKG-MULTI-SUB-01-contract.md)
 - PKG-MULTI-SUB-02: [记录](baselines/multiple-subtitles-failures.json) [记录](changes/2026-09-13-PKG-MULTI-SUB-02-failures.md)
@@ -1,5 +1,23 @@
 # 进度与证据

+## PKG-DASH-SEEK-01 暂停跳转缓冲指标修复完成
+
+仅在dash.js 4.5.2真实空缓冲且缓存指标陈旧时同步零值，恢复SDK自身下载调度。
+模块复用SDK事件订阅的所有权，检查版本、stream/video/metrics身份、暂停跳转、
+裁剪和重入边界；不替换SDK方法、不清缓冲、不改时间或发送合成媒体事件。
+修复前新旧核心两引擎严格跳转4失败；修复后源码8通过，最终main/legacy各8通过。
+源码和三格式Node414通过；最终含文档包离线安装/冻结重装、五组类型通过。
+严格TS、根lint和专项lint通过，根lint仍有1个既有warning。
+
+main定向SDK矩阵76通过；legacy75通过1失败，原报告保持：SDK5.2.1/旧核心下
+质量设置180p在点击过程中不可见。根因尚未确认，新增PKG-DASH-MENU-01及
+DASH-MENU-01接续处理，不靠force点击、扩大超时或重跑覆盖。裸4.5.2与旧插件
+原始停滞仍保留，DASH-SEEK-01/PKG-DASH-05/06及全局发布门槛保持开放。
+诊断getter无效和指标同步有效的反事实报告仍以失败退出，未混入验收通过数。
+见[变更](changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md)和
+[机器证据](baselines/dash-seek-recovery-validation.json)。261项：191 done、20 doing、
+50 todo。此任务独立本地提交并完成提交审计后，继续设置菜单失败调查；没有push或发布。
+
 ## CI-01 Chromium 完整源码范围回归检查点

 固定fc566f14d源码、Node24.21.0/Yarn1.22.22，完整152文件1481项，双worker运行
@@ -140,7 +140,7 @@
 | DASH-STATE-01 | resolved / 已复现 | DASH 当前项高亮使用真值 ID、音轨身份和标签去重，边界待核实 | PKG-DASH-02, PKG-DASH-03, PKG-DASH-05 |
 | DASH-TYPE-01 | resolved / 源码/产物事实 | DASH 类型未表达默认工厂参数、SDK 回调对象和现代模块入口 | PKG-DASH-04 |
 | DASH-DEMO-01 | open / 源码/产物事实 | DASH 示例仅新 SDK 且重复安装会累积销毁回调 | PKG-DASH-06 |
-| DASH-SEEK-01 | open / 已复现 | dash.js 4.5.2 空裁剪漏更新缓冲量，稳定暂停 seek 后调度停滞 | PKG-DASH-05, REVIEW-02 |
+| DASH-SEEK-01 | open / 已复现 | dash.js 4.5.2 空裁剪漏更新缓冲量，稳定暂停 seek 后调度停滞 | PKG-DASH-05, REVIEW-02, PKG-DASH-SEEK-01 |
 | ADS-TYPE-01 | accepted-with-scope / 已复现 | Ads 声明丢失真实 html/video/url，旧 totalDuration 为 string，当前 source/type 未实现 | PKG-ADS-02, PKG-ADS-04 |
 | ADS-DIST-01 | open / 已复现 | Ads npm 1.0.6 default namespace 与未发布 2.1.0 callable/exports 分发不同 | PKG-ADS-04, PKG-ADS-06, REL-01 |
 | ADS-CORE-01 | resolved / 源码/产物事实 | Ads 旧发布关联核心 4.5.5，当前源码新增 >=5 门槛和 document 事件桥依赖 | PKG-ADS-02, PKG-ADS-03, PKG-ADS-05 |
@@ -274,3 +274,4 @@
 | CHAPTER-FULLSCREEN-GEOMETRY-01 | resolved / 已复现 | Chromium 原生全屏后章节 hover 标题曾出现后又隐藏 | PKG-CHAPTER-05, PKG-CHAPTER-HOVER-01 |
 | CANVAS-SUBTITLE-01 | resolved / 已复现 | Canvas底层video缺初始字幕轨道且普通Canvas挂载不能加载原生字幕 | PKG-CANVAS-SUBTITLE-01, PKG-CANVAS-05 |
 | DPIP-INSTALLED-PROVENANCE-01 | resolved / 已复现 | Document PiP测试加载器忽略显式安装map并回退到源码 | PKG-CANVAS-05, CI-01 |
+| DASH-MENU-01 | open / 已复现 | SDK 5.2.1 播放中设置质量选项在点击时变为不可见 | PKG-DASH-MENU-01, PKG-DASH-05, REVIEW-02 |
@@ -3055,7 +3055,8 @@
      "status": "open",
      "owners": [
        "PKG-DASH-05",
-        "REVIEW-02"
+        "REVIEW-02",
+        "PKG-DASH-SEEK-01"
      ],
      "evidence": [
        "test/browser/dash-sdk.spec.js",
@@ -3065,9 +3066,11 @@
        "refactor/baselines/dash-seek-diagnosis.json",
        "test/browser/dash-buffer-observer.js",
        "refactor/changes/2026-09-14-CI-01-source-chromium.md",
-        "refactor/baselines/ci-source-chromium-validation.json"
+        "refactor/baselines/ci-source-chromium-validation.json",
+        "refactor/changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md",
+        "refactor/baselines/dash-seek-recovery-validation.json"
      ],
-      "compatibleResolution": "已用原生 SDK、SourceBuffer/调度指标和 SDK 5 空裁剪刷新的一行诊断回植确认根因。兼容处置尚未落地；不在核心伪造 timeupdate、不偏移 seek、不强制所有旧用户升级 SDK，也不将诊断补丁计为正式上游通过。",
+      "compatibleResolution": "PKG-DASH-SEEK-01 已在候选插件按精确版本和真实空缓冲同步 SDK 指标，新旧核心及两引擎严格跳转通过。裸 SDK 4.5.2 和冻结旧插件仍保留原始失败；不伪造媒体事件、不偏移 seek、不强制升级 SDK，完整组合及发布验收仍开放。",
      "closureCriteria": "原失败的新旧核心/插件组合有确定根因与对应修复/可验证环境边界；原生对照及原顺序、原目标回归成立，后续偶然通过不能关闭。"
    },
    {
@@ -6267,6 +6270,23 @@
        "refactor/scripts/ci-workflow.test.mjs"
      ],
      "resolutionRationale": "Old loader test reports missing expected rejection; updated loader rejects missing/stale maps and conflicting modes. Five-package isolated build/pack/install supplies main and legacy native PiP tests with package hashes. Local workflow mutation protects the required DPIP preparation; remote runs remain unverified."
+    },
+    {
+      "id": "DASH-MENU-01",
+      "title": "SDK 5.2.1 播放中设置质量选项在点击时变为不可见",
+      "confirmation": "reproduced",
+      "status": "open",
+      "owners": [
+        "PKG-DASH-MENU-01",
+        "PKG-DASH-05",
+        "REVIEW-02"
+      ],
+      "evidence": [
+        "refactor/changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md",
+        "refactor/baselines/dash-seek-recovery-validation.json"
+      ],
+      "compatibleResolution": "最终 legacy 定向矩阵复现：旧核心、新插件、Chromium 的180p选项先不稳定后不可见；保留点击失败与trace。SDK5.2.1不进入4.5.2指标修复分支，但菜单根因及历史来源尚未确定。",
+      "closureCriteria": "定位实际隐藏/刷新时序并提供可复现旧红新绿；新旧核心、main/legacy、质量/音轨、SDK刷新与销毁组合验证，不靠force点击或重跑覆盖失败。"
    }
  ]
 }
@@ -2239,6 +2239,44 @@
        "dash-validation.md"
      ]
    },
+    {
+      "id": "PKG-DASH-SEEK-01",
+      "phase": "5 包迁移：artplayer-plugin-dash-control",
+      "title": "修复 SDK 4.5.2 暂停跳转后的缓冲指标停滞",
+      "scope": [
+        "artplayer-plugin-dash-control"
+      ],
+      "dependsOn": [
+        "PKG-DASH-04"
+      ],
+      "status": "done",
+      "risk": "H",
+      "deliverable": "按版本和实测空缓冲限定的指标同步、生命周期守卫及真实 SDK 旧红新绿",
+      "acceptance": "新插件在新旧核心及 Chromium/Firefox 原位置回归通过；不修改 SDK 方法/配置、媒体时间或删除缓冲；旧 SDK 原生缺陷与旧插件限制独立记录，不宣称第三方本体已修复",
+      "evidence": [
+        "changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md",
+        "baselines/dash-seek-recovery-validation.json"
+      ]
+    },
+    {
+      "id": "PKG-DASH-MENU-01",
+      "phase": "5 包迁移：artplayer-plugin-dash-control",
+      "title": "定位并修复 SDK 刷新期间设置选项不可见",
+      "scope": [
+        "artplayer-plugin-dash-control"
+      ],
+      "dependsOn": [
+        "PKG-DASH-SEEK-01"
+      ],
+      "status": "todo",
+      "risk": "H",
+      "deliverable": "真实 SDK 菜单点击失败根因、对应兼容修复及新旧核心回归",
+      "acceptance": "保留 legacy/旧核心/SDK5.2.1 的原失败；确定菜单在点击过程中不可见的原因；不靠 force 点击、扩大超时或重复运行覆盖问题；main/legacy 质量与音轨设置及 SDK 刷新组合通过",
+      "evidence": [
+        "changes/2026-09-14-PKG-DASH-SEEK-01-buffer-metrics.md",
+        "baselines/dash-seek-recovery-validation.json"
+      ]
+    },
    {
      "id": "PKG-DASH-05",
      "phase": "5 包迁移：artplayer-plugin-dash-control",
@@ -2248,7 +2286,8 @@
      ],
      "dependsOn": [
        "PKG-DASH-04",
-        "CORE-22"
+        "CORE-22",
+        "PKG-DASH-SEEK-01"
      ],
      "status": "doing",
      "risk": "H",
@@ -2276,7 +2315,8 @@
      ],
      "dependsOn": [
        "PKG-DASH-05",
-        "ENG-07"
+        "ENG-07",
+        "PKG-DASH-MENU-01"
      ],
      "status": "todo",
      "risk": "H",