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fix(decoder): fix TypeError when converting timestamp

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Simon Chan 2025-08-26 11:53:36 +08:00
parent 642a532378
commit 779a793a1d
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1 changed files with 17 additions and 4 deletions
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21
libraries/scrcpy-decoder-webcodecs/src/video/decoder.ts
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@ -164,13 +164,26 @@ export class WebCodecsVideoDecoder implements ScrcpyVideoDecoder {
// Set `pts` to 0 as a marker for skipping rendering this frame // Set `pts` to 0 as a marker for skipping rendering this frame
packet.pts = 0n; packet.pts = 0n;
} else { } else {
const [ms, us] = performance.now().toString().split(".");
// Multiply `performance.now()` by 1000 to get microseconds.
// Use string manipulation to improve precision.
let timestamp = ms!;
// `performance.now` might return an integer so `us` might be undefined
if (us) {
if (us.length < 3) {
timestamp += us.padEnd(3, "0");
} else {
timestamp += us.slice(0, 3);
}
} else {
timestamp += "000";
}
// Set `pts` to current time to track decoding time // Set `pts` to current time to track decoding time
// Technically `performance.now()` can return 0 (when document starts loading), // Technically `performance.now()` can return 0 (when document starts loading),
// but in practice it's impossible to call it at that time. // but in practice it's impossible to call it at that time.
const [ms, us] = performance.now().toString().split("."); packet.pts = BigInt(timestamp);
// Multiply `performance.now()` by 1000 to get microseconds.
// String manipulation is used to keep precision.
packet.pts = BigInt(ms + us!.slice(0, 3).padEnd(3, "0"));
} }
return this.#decoder.decode(packet); return this.#decoder.decode(packet);
}, },