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ArtPlayer/refactor/baselines/jassub-native-call-validation.json
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{
"task": "PKG-JASSUB-09",
"status": "doing",
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{
"location": {
"file": "D:\\github\\ArtPlayer\\test\\browser\\jassub-platform.spec.js",
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"line": 147
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"message": "Error: Timeout 7000ms exceeded while waiting on the predicate\n\n 145 | await expect.poll(async () => (await page.evaluate(() => window.nativeCanvasProbe.sample())).width).toBeGreaterThan(before.width)\n 146 | await expect.poll(async () => (await page.evaluate(() => window.nativeCanvasProbe.sample())).time).toBeGreaterThan(10.2)\n> 147 | await expect.poll(async () => (await page.evaluate(() => window.nativeCanvasProbe.sample())).pixel).toEqual([0, 0, 255, 255])\n | ^\n 148 | }\n 149 | finally {\n 150 | const evidence = await page.evaluate(() => {\n at D:\\github\\ArtPlayer\\test\\browser\\jassub-platform.spec.js:147:107"
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"line": 154
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},
{
"start": 869,
"sent": 7,
"received": 7,
"copyStart": 869,
"drawn": 870,
"read": 870,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 911,
"sent": 8,
"received": 8,
"copyStart": 911,
"drawn": 914,
"read": 943,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 981,
"sent": 9,
"received": 9,
"copyStart": 981,
"drawn": 984,
"read": 1010,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1156,
"sent": 11,
"received": 11,
"copyStart": 1156,
"drawn": 1158,
"read": 1162,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1197,
"sent": 11,
"received": 11,
"copyStart": 1197,
"drawn": 1197,
"read": 1198,
"pixel": [
0,
0,
255,
255
]
}
],
"errors": [],
"coreLoaded": true,
"pixel": [
0,
0,
255,
255
],
"width": 1280,
"height": 720,
"time": 10.3526667,
"frames": 12,
"sent": 12,
"received": 12,
"skipped": 0,
"maxOutstanding": 1,
"quality": 0
},
"limitation": "Native video/frame callbacks and a minimal Worker painting opaque colors. Bitmap mode uses createImageBitmap/drawImage/close; otherwise fillRect. JASSUB wrapper, WASM and fonts are absent. The native host loads no ArtPlayer scripts. Capability fallback without transfer is main-thread fillRect, not offscreen or ImageBitmap verification."
}
},
{
"title": "Native canvas and video control through seek/layout without JASSUB: published",
"project": "webkit",
"status": "passed",
"duration": 1967,
"errors": [],
"browser": "26.6",
"platform": "win32",
"unhandledErrors": [],
"maxSynchronousCallMs": null,
"slowCalls": [],
"slowSamples": [],
"control": {
"host": "published",
"evidence": {
"offscreen": false,
"bitmap": false,
"idleReadback": false,
"singleFlight": false,
"stages": [],
"samples": [
{
"start": 596,
"sent": 2,
"received": 2,
"copyStart": 596,
"drawn": 597,
"read": 607,
"pixel": [
255,
0,
0,
255
]
},
{
"start": 621,
"sent": 2,
"received": 2,
"copyStart": 621,
"drawn": 621,
"read": 621,
"pixel": [
255,
0,
0,
255
]
},
{
"start": 1119,
"sent": 12,
"received": 12,
"copyStart": 1119,
"drawn": 1120,
"read": 1121,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1139,
"sent": 13,
"received": 13,
"copyStart": 1139,
"drawn": 1140,
"read": 1150,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1325,
"sent": 15,
"received": 15,
"copyStart": 1325,
"drawn": 1328,
"read": 1349,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1394,
"sent": 16,
"received": 16,
"copyStart": 1394,
"drawn": 1397,
"read": 1430,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1470,
"sent": 17,
"received": 17,
"copyStart": 1470,
"drawn": 1472,
"read": 1503,
"pixel": [
0,
0,
255,
255
]
}
],
"errors": [],
"coreLoaded": true,
"pixel": [
0,
0,
255,
255
],
"width": 1280,
"height": 720,
"time": 10.4753126,
"frames": 18,
"sent": 18,
"received": 18,
"skipped": 0,
"maxOutstanding": 1,
"quality": 0
},
"limitation": "Native video/frame callbacks and a minimal Worker painting opaque colors. Bitmap mode uses createImageBitmap/drawImage/close; otherwise fillRect. JASSUB wrapper, WASM and fonts are absent. The native host loads no ArtPlayer scripts. Capability fallback without transfer is main-thread fillRect, not offscreen or ImageBitmap verification."
}
},
{
"title": "Native canvas and video control through seek/layout without JASSUB: native",
"project": "webkit",
"status": "passed",
"duration": 1644,
"errors": [],
"browser": "26.6",
"platform": "win32",
"unhandledErrors": [],
"maxSynchronousCallMs": null,
"slowCalls": [],
"slowSamples": [],
"control": {
"host": "native",
"evidence": {
"offscreen": false,
"bitmap": false,
"idleReadback": false,
"singleFlight": false,
"stages": [],
"samples": [
{
"start": 537,
"sent": 3,
"received": 3,
"copyStart": 537,
"drawn": 538,
"read": 545,
"pixel": [
255,
0,
0,
255
]
},
{
"start": 556,
"sent": 4,
"received": 4,
"copyStart": 556,
"drawn": 557,
"read": 573,
"pixel": [
255,
0,
0,
255
]
},
{
"start": 838,
"sent": 17,
"received": 17,
"copyStart": 838,
"drawn": 839,
"read": 840,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 882,
"sent": 18,
"received": 18,
"copyStart": 882,
"drawn": 886,
"read": 925,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 959,
"sent": 19,
"received": 19,
"copyStart": 959,
"drawn": 962,
"read": 1031,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1187,
"sent": 21,
"received": 21,
"copyStart": 1187,
"drawn": 1189,
"read": 1199,
"pixel": [
0,
0,
255,
255
]
},
{
"start": 1213,
"sent": 22,
"received": 22,
"copyStart": 1213,
"drawn": 1215,
"read": 1286,
"pixel": [
0,
0,
255,
255
]
}
],
"errors": [],
"coreLoaded": false,
"pixel": [
0,
0,
255,
255
],
"width": 1280,
"height": 720,
"time": 10.4579584,
"frames": 23,
"sent": 23,
"received": 23,
"skipped": 0,
"maxOutstanding": 1,
"quality": 0
},
"limitation": "Native video/frame callbacks and a minimal Worker painting opaque colors. Bitmap mode uses createImageBitmap/drawImage/close; otherwise fillRect. JASSUB wrapper, WASM and fonts are absent. The native host loads no ArtPlayer scripts. Capability fallback without transfer is main-thread fillRect, not offscreen or ImageBitmap verification."
}
}
]
}
],
"sourceFiles": [
{
"path": "test/browser/jassub-platform.spec.js",
"sha256": "e3e8b8da8ae86c6a02995a112ca6f5b9c0c41207fba6bbeb0bd38321ea19c6f4"
},
{
"path": "test/browser/player.html",
"sha256": "4037c6eadc5da176f9dd67b2b517acb06c8cb2246c841316df26c660e55584b4"
},
{
"path": "test/browser/fixtures.js",
"sha256": "313414b8958eb5b03a2da8595fa0bbf6bfdc01484373898c6cb7179545df175d"
},
{
"path": "playwright.config.js",
"sha256": "df2384f5626252ec933725867e400ec22eb92bc5e6f04873059b32decf2f2d56"
}
],
"findings": [
"One outstanding task still stalls: queue concurrency is not required in the reproduced published-host failure.",
"Measured synchronous createImageBitmap call and main-thread drawImage readback each take roughly ten seconds; the remaining Promise settlement takes milliseconds in the captured sample.",
"The script-free native host in the intermediate boundary run also records a ten-second canvas readback despite an eventual-pixel pass. Green result alone is insufficient to infer no stall.",
"The final diagnostic bounds readback durations at seven seconds across initial playback, seek and layout. This opt-in bound does not change production defaults.",
"Idle readback passes once but changes observation scheduling. It is not a demonstrated runtime fix or evidence that screenshot/JASSUB failures have been resolved."
],
"limitations": [
"No native stack, lock identity or exact browser root cause; no offscreen-default change, vendor patch, publication, physical-device or full-package acceptance.",
"Worker and main-thread performance clocks have different origins. Durations are compared within each realm, not by subtracting cross-realm timestamps.",
"Early source revisions differ as explicitly identified. Final source fingerprints only cover final/idle/fillRect runs. Raw traces remain local.",
"Windows WebKit lacks canvas transfer; its cases exercise main-thread fillRect, not ImageBitmap or offscreen rendering."
]
}
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