ZacharyZhang-NY
e74dafcd36
Three independently ugly bugs that all fed the same log flood:
* Electron's `WebFrameMain.send` writes every "Render frame was disposed"
to stderr via `console.error`. When the worker fans a second
agent-event past a reloading renderer, we produced thousands of
identical lines and stalled the main loop on stderr I/O. Added a
`mainFrame.detached` guard so the send is short-circuited before
Electron's own catch block fires, and installed a targeted filter in
`suppress-warnings.ts` (now actually imported from the entry point)
so the specific `console.error("Error sending from webFrameMain:"…)`
noise never reaches the terminal. Any other payload still surfaces.
* `dispatchAgentMessage` accepted the human-reader sentinel as a wake
target when an agent replied to `__board__` — `wakeAgentIfPossible`
then called `db.getAgent("__board__")`, threw, and the dispatcher
kept repeating on every send. Strip `HUMAN_SENDER_ID` at
`resolveMessageWakeTargets`, and keep a defense-in-depth guard in the
heartbeat so a stray caller (future automation fan-out) cannot
reintroduce the crash.
* Pi's skills loader rejects any SKILL.md whose frontmatter `name`
diverges from its parent directory. The four bundled `my-writing-style`
copies declared `name: writing-style-skill`, so every install emitted
a warning and dropped the skill. They also lived as orphan gitlinks
(mode 160000 without .gitmodules), and the global `*.md` gitignore
hid every other SKILL.md from version control. Fixed the frontmatter
to match the dir, converted the dangling submodules to plain trees,
and allowlisted `builtin-skills/**/*.md` so a fresh clone carries the
catalogue instead of silently losing it.
172 lines
3.4 KiB
Markdown
172 lines
3.4 KiB
Markdown
---
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name: videos
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description: Embedding videos in Remotion - trimming, volume, speed, looping, pitch
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metadata:
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tags: video, media, trim, volume, speed, loop, pitch
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---
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# Using videos in Remotion
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## Prerequisites
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First, the @remotion/media package needs to be installed.
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If it is not, use the following command:
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```bash
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npx remotion add @remotion/media # If project uses npm
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bunx remotion add @remotion/media # If project uses bun
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yarn remotion add @remotion/media # If project uses yarn
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pnpm exec remotion add @remotion/media # If project uses pnpm
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```
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Use `<Video>` from `@remotion/media` to embed videos into your composition.
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```tsx
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import { Video } from "@remotion/media";
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import { staticFile } from "remotion";
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export const MyComposition = () => {
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return <Video src={staticFile("video.mp4")} />;
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};
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```
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Remote URLs are also supported:
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```tsx
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<Video src="https://remotion.media/video.mp4" />
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```
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## Trimming
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Use `trimBefore` and `trimAfter` to remove portions of the video. Values are in seconds.
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```tsx
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const { fps } = useVideoConfig();
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return (
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<Video
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src={staticFile("video.mp4")}
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trimBefore={2 * fps} // Skip the first 2 seconds
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trimAfter={10 * fps} // End at the 10 second mark
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/>
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);
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```
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## Delaying
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Wrap the video in a `<Sequence>` to delay when it appears:
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```tsx
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import { Sequence, staticFile } from "remotion";
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import { Video } from "@remotion/media";
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const { fps } = useVideoConfig();
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return (
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<Sequence from={1 * fps}>
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<Video src={staticFile("video.mp4")} />
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</Sequence>
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);
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```
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The video will appear after 1 second.
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## Sizing and Position
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Use the `style` prop to control size and position:
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```tsx
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<Video
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src={staticFile("video.mp4")}
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style={{
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width: 500,
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height: 300,
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position: "absolute",
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top: 100,
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left: 50,
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objectFit: "cover",
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}}
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/>
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```
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## Volume
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Set a static volume (0 to 1):
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```tsx
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<Video src={staticFile("video.mp4")} volume={0.5} />
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```
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Or use a callback for dynamic volume based on the current frame:
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```tsx
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import { interpolate } from "remotion";
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const { fps } = useVideoConfig();
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return (
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<Video
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src={staticFile("video.mp4")}
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volume={(f) =>
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interpolate(f, [0, 1 * fps], [0, 1], { extrapolateRight: "clamp" })
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}
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/>
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);
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```
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Use `muted` to silence the video entirely:
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```tsx
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<Video src={staticFile("video.mp4")} muted />
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```
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## Speed
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Use `playbackRate` to change the playback speed:
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```tsx
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<Video src={staticFile("video.mp4")} playbackRate={2} /> {/* 2x speed */}
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<Video src={staticFile("video.mp4")} playbackRate={0.5} /> {/* Half speed */}
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```
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Reverse playback is not supported.
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## Looping
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Use `loop` to loop the video indefinitely:
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```tsx
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<Video src={staticFile("video.mp4")} loop />
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```
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Use `loopVolumeCurveBehavior` to control how the frame count behaves when looping:
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- `"repeat"`: Frame count resets to 0 each loop (for `volume` callback)
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- `"extend"`: Frame count continues incrementing
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```tsx
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<Video
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src={staticFile("video.mp4")}
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loop
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loopVolumeCurveBehavior="extend"
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volume={(f) => interpolate(f, [0, 300], [1, 0])} // Fade out over multiple loops
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/>
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```
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## Pitch
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Use `toneFrequency` to adjust the pitch without affecting speed. Values range from 0.01 to 2:
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```tsx
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<Video
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src={staticFile("video.mp4")}
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toneFrequency={1.5} // Higher pitch
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/>
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<Video
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src={staticFile("video.mp4")}
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toneFrequency={0.8} // Lower pitch
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/>
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```
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Pitch shifting only works during server-side rendering, not in the Remotion Studio preview or in the `<Player />`.
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