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Add toAvFrame, NodeAv* -> Av*, add server README, fix track synchronizer in conversion, increase default cache size for ReadableStreamSource

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Vanilagy
2026-05-13 15:26:13 +02:00
parent d2d485196f
commit 292189e3d4
15 changed files with 4597 additions and 88 deletions
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packages/server/src/index.ts
+45 -4
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@@ -6,13 +6,14 @@
* file, You can obtain one at https://mozilla.org/MPL/2.0/.
*/
import { registerDecoder, registerEncoder, registerVideoSampleTransformer } from 'mediabunny';
import { AudioSample, registerDecoder, registerEncoder, registerVideoSampleTransformer, VideoSample } from 'mediabunny';
import * as NodeAv from 'node-av';
import { NodeAvVideoDecoder } from './video-decoder';
import { NodeAvVideoEncoder } from './video-encoder';
import { NodeAvAudioDecoder } from './audio-decoder';
import { NodeAvAudioEncoder } from './audio-encoder';
import { transformVideoSample } from './video-sample';
import { copyVideoSampleToAvFrame, AvFrameVideoSampleResource, transformVideoSample } from './video-sample';
import { copyAudioSampleToAvFrame, AvFrameAudioSampleResource } from './audio-sample';
const SERVER_LOADED_SYMBOL = Symbol.for('@mediabunny/server loaded');
if ((globalThis as Record<symbol, unknown>)[SERVER_LOADED_SYMBOL]) {
@@ -59,5 +60,45 @@ export const registerMediabunnyServer = () => {
registerVideoSampleTransformer(transformVideoSample);
};
export { NodeAvFrameVideoSampleResource } from './video-sample';
export { NodeAvFrameAudioSampleResource } from './audio-sample';
export { AvFrameVideoSampleResource } from './video-sample';
export { AvFrameAudioSampleResource } from './audio-sample';
/**
* Copies a `VideoSample` or `AudioSample` into the given NodeAV
* [`Frame`](https://seydx.github.io/node-av/api/lib/classes/Frame.html), setting up the frame's format, media type,
* timing and data. When the sample is already backed by an `AVFrame` (via `AvFrameVideoSampleResource` or
* `AvFrameAudioSampleResource`), the frame is ref'd instead of copied for zero-copy reuse.
*
* For video samples, the frame's time base is always set to 1/1000000 (microsecond accuracy). For audio samples, the
* frame's time base is always set to 1/sampleRate.
*
* @group \@mediabunny/server
* @public
*/
export const toAvFrame = async (sample: VideoSample | AudioSample, frame: NodeAv.Frame) => {
if (sample instanceof VideoSample) {
if (sample._data instanceof AvFrameVideoSampleResource) {
frame.ref(sample._data.frame);
} else {
if (sample.format === null) {
throw new Error('Cannot convert foreign VideoSample with unknown (null) format.');
}
await copyVideoSampleToAvFrame(sample, frame, null);
}
frame.pts = BigInt(sample.microsecondTimestamp);
frame.duration = BigInt(sample.microsecondDuration);
frame.timeBase = new NodeAv.Rational(1, 1e6);
} else {
if (sample._data instanceof AvFrameAudioSampleResource) {
frame.ref(sample._data.frame);
} else {
copyAudioSampleToAvFrame(sample, frame);
}
frame.timeBase = new NodeAv.Rational(1, sample.sampleRate);
frame.pts = BigInt(Math.round(sample.timestamp * sample.sampleRate));
frame.duration = BigInt(sample.numberOfFrames);
}
};