b7416b8346
WebGL 录制没有音轨，dpr 1.5 下宽高经常是奇数，libx264 的 yuv420p 会直接失败。转码改为偶数缩放、去掉音轨，并用 ultrafast 单线程适配关闭汇编的 ffmpeg 内核。
16 lines
932 B
TypeScript
16 lines
932 B
TypeScript
import { describe, expect, test } from "bun:test";
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import { buildRecordingTranscodeArgs } from "../src/lib/canvas/canvas-video-merge-args";
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describe("buildRecordingTranscodeArgs", () => {
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test("奇数画布先裁成偶数，并且不要求音轨", () => {
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const args = buildRecordingTranscodeArgs("recording.webm", "recording-transcoded.mp4");
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expect(args).toContain("-an");
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expect(args).toContain("scale=trunc(iw/2)*2:trunc(ih/2)*2");
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expect(args).not.toContain("-c:a");
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expect(args.indexOf("-vf")).toBeGreaterThan(args.indexOf("-i"));
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expect(args.indexOf("-vf")).toBeLessThan(args.indexOf("recording-transcoded.mp4"));
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expect(args).toEqual(["-i", "recording.webm", "-an", "-vf", "scale=trunc(iw/2)*2:trunc(ih/2)*2", "-c:v", "libx264", "-preset", "ultrafast", "-pix_fmt", "yuv420p", "-movflags", "+faststart", "-threads", "1", "recording-transcoded.mp4"]);
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});
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});
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