113 lines
3.2 KiB
JavaScript
113 lines
3.2 KiB
JavaScript
import {
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getStream,
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indexOf,
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renderAllProps,
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getStreamIndex,
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formatDuration,
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} from "./util.mjs";
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import { makeIDGen } from "./util.mjs";
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import video_props from "./video_props.mjs";
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import audio_props from "./audio_props.mjs";
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const makeId = makeIDGen(1);
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const producerIndexGen = makeIDGen(0);
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export default class Producer {
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constructor(metadata) {
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this.metadata = metadata;
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this.index = producerIndexGen.next().value;
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}
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static prop_types = {
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length: (metadata, project_settings) => {
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const duration = getStream(metadata.track, "General").Duration;
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return `${duration * project_settings.fps}`;
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},
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eof: "pause",
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resource: (metadata) => metadata["@ref"],
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audio_index: (metadata) => getStreamIndex(metadata.track, "Audio"),
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video_index: (metadata) => getStreamIndex(metadata.track, "Video"),
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mute_on_pause: "0",
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mlt_service: "avformat-novalidate",
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seekable: "1",
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aspect_ratio: "1",
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"kdenlive:clipname": "",
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"kdenlive:folderid": "-1",
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"kdenlive:audio_max0": "208",
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"kdenlive:id": () => makeId.next().value,
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"kdenlive:file_size": async (metadata) =>
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(
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await $`du --bytes ${metadata["@ref"]} | awk '{print $1}'`
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).stdout.replace("\n", ""),
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"kdenlive:file_hash": async (metadata) =>
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(
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await $`head -c 1000000 ${metadata["@ref"]} && tail -c 1000000 ${metadata["@ref"]}`.pipe(
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$`md5sum | awk '{print $1}'`
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)
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).stdout.replace("\n", ""),
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"meta.media.nb_streams": (metadata) => metadata.track.length - 1,
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$$$video: async (metadata, project_settings) => {
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const video_index = indexOf(metadata.track, (e) => e["@type"] == "Video");
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if (video_index == -1) {
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return null;
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}
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return {
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$replace: await renderAllProps(
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video_props,
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{
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index: video_index,
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path: metadata["@ref"],
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data: metadata.track[video_index],
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},
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project_settings,
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`meta.media.${getStreamIndex(metadata.track, "Video")}.`
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),
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};
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},
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$$$audio: async (metadata, project_settings) => {
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const audio_index = indexOf(metadata.track, (e) => e["@type"] == "Audio");
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if (audio_index == -1) {
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return null;
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}
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return {
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$replace: await renderAllProps(
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audio_props,
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{
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index: audio_index,
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path: metadata["@ref"],
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data: metadata.track[audio_index],
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},
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project_settings,
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`meta.media.${getStreamIndex(metadata.track, "Audio")}.`
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),
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};
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},
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};
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static async fromFile(file_path) {
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const metadata = JSON.parse(
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(await $`mediainfo --Output=JSON ${file_path}`).stdout
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).media;
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return new Producer(metadata);
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}
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getDuration() {
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return formatDuration(
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parseFloat(getStream(this.metadata.track, "General").Duration)
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);
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}
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async toXML(project_settings) {
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return `<producer id="producer${
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this.index
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}" in="00:00:00.000" out="${this.getDuration()}">
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${await renderAllProps(
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Producer.prop_types,
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this.metadata,
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project_settings
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)}
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</producer>
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`;
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}
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}
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