362 lines
9.2 KiB
JavaScript
362 lines
9.2 KiB
JavaScript
import { v4 as uuidv4 } from "uuid";
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import { writable, derived, get } from "svelte/store";
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export const nodes = writable([]);
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export const edges = writable([]);
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export const auto = writable(true);
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export const doFit = writable(0);
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export const selectedFilter = writable();
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export const INPUTNAMES = [
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{ name: "punch.mp4", url: "/punch.mp4", ext: "mp4", outputs: ["v", "a"], inputs: [] },
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{ name: "shoe.mp4", url: "/shoe.mp4", ext: "mp4", outputs: ["v", "a"], inputs: [] },
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];
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export const OUTPUTNAMES = [
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{ name: "out.mp4", ext: "mp4", inputs: ["v", "a"], outputs: [] },
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{ name: "out.gif", ext: "gif", inputs: ["v"], outputs: [] },
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];
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export const inputNames = writable(INPUTNAMES);
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export const outputNames = writable(OUTPUTNAMES);
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addNode({ ...INPUTNAMES[0] }, "input");
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addNode({ ...OUTPUTNAMES[0] }, "output");
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export function makeFilterArgs(f) {
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let fCommand = f.name;
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if (f.params && f.params.length > 0) {
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let params = f.params
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.map((p) => {
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if (p.value === "" || p.value === null || p.value === p.default) return null;
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return `${p.name}=${p.value}`;
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})
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.filter((p) => p !== null)
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.join(":");
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if (params) fCommand += "=" + params;
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}
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return fCommand;
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}
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export const previewCommand = derived([edges, nodes], ([$edges, $nodes]) => {
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let finalCommand = [];
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let filtergraph = [];
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let labelIndex = 1;
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const edgeIds = {};
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const inputIdMap = {};
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const inputs = $nodes.filter((n) => n.nodeType === "input");
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const inputIds = inputs.map((n) => n.id);
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const inputEdges = $edges.filter((e) => inputIds.includes(e.source));
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const outputs = $nodes.filter((n) => n.nodeType === "output");
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// create edge labels for each input
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inputs.forEach((inp, i) => (inputIdMap[inp.id] = i));
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// create edge labels for each filter
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function traverseEdges(edg, type) {
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// const outEdges = $edges.filter((e) => e.source === edg.target && (e.sourceHandle.includes(type) || e.sourceHandle.includes("n")));
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const outEdges = $edges.filter((e) => e.source === edg.target);
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let label;
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const inNode = $nodes.find((n) => n.id === edg.source);
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const outNode = $nodes.find((n) => n.id === edg.target);
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if (inNode && outNode) {
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if (inNode.nodeType === "input" && outNode.nodeType === "filter") {
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label = inputIdMap[inNode.id] + ":" + edg.sourceHandle[0];
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} else if (inNode.nodeType === "filter" && outNode.nodeType === "filter") {
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label = labelIndex;
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labelIndex++;
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} else if (inNode.nodeType === "filter" && outNode.nodeType === "output") {
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label = "out_" + type;
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} else if (inNode.nodeType === "input" && outNode.nodeType === "output") {
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label = "FILTERLESS_" + inputIdMap[inNode.id] + ":" + type;
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} else {
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label = "UNKNOWN";
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}
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edgeIds[edg.id] = label;
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}
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for (let e2 of outEdges) {
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traverseEdges(e2, type);
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}
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}
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for (let inp of inputEdges) {
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for (let t of ["v", "a"]) {
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if (inp.sourceHandle.includes(t)) {
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traverseEdges(inp, t);
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}
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}
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}
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for (let n of $nodes.filter((n) => n.nodeType == "filter")) {
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let cmd = { weight: 0, in: [], out: [], cmd: "" };
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const outs = $edges.filter((e) => e.source == n.id);
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const ins = $edges.filter((e) => e.target == n.id);
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if (outs.length == 0 && ins.length == 0) continue;
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for (let i of ins) {
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const eid = edgeIds[i.id];
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if (eid) {
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if (typeof eid == "string" && eid.includes(":")) cmd.weight = -1000;
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else cmd.weight = eid;
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cmd.in.push(eid);
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}
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}
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cmd.cmd = makeFilterArgs(n.data);
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for (let o of outs) {
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const eid = edgeIds[o.id];
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if (eid) {
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if (typeof eid == "string" && eid.includes("out")) cmd.weight = 1000;
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cmd.out.push(eid);
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}
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}
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filtergraph.push(cmd);
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}
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filtergraph.sort((a, b) => {
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return a.weight - b.weight;
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});
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filtergraph = filtergraph.map((c) => {
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return c.in.map((i) => `[${i}]`).join("") + c.cmd + c.out.map((i) => `[${i}]`).join("");
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});
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finalCommand.push("ffmpeg");
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for (let inp of inputs) {
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finalCommand.push("-i");
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finalCommand.push(inp.data.name);
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}
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let mediaMaps = Object.values(edgeIds)
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.map((eid) => {
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if (String(eid).includes("FILTERLESS")) {
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return eid.split("_")[1];
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}
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return null;
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})
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.filter((m) => m !== null);
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if (filtergraph.length > 0) {
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let fg = `"${filtergraph.join(";")}"`;
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// this crazy thing replaces stuff like [1];[1] with a comma!
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fg = fg.replaceAll(/(?<!])(\[\d+\]);\1(?!\[)/g, ",");
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finalCommand.push("-filter_complex", fg);
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if (fg.includes("[out_a]")) {
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finalCommand.push("-map", '"[out_a]"');
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}
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if (fg.includes("[out_v]")) {
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finalCommand.push("-map", '"[out_v]"');
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}
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for (let m of mediaMaps) {
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finalCommand.push("-map", m);
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}
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}
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for (let out of outputs) {
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finalCommand.push(out.data.name);
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}
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return finalCommand;
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});
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export const inputs = derived(nodes, ($nodes) => {
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return $nodes.filter((n) => n.nodeType === "input").map((n) => n.data);
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});
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export const outputs = derived(nodes, ($nodes) => {
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return $nodes.filter((n) => n.nodeType === "output").map((n) => n.data);
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});
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nodes.subscribe(($nodes) => {
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const isAuto = get(auto);
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if (!isAuto) return;
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const outputNodes = $nodes.filter((n) => n.nodeType === "output");
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const inputNodes = $nodes.filter((n) => n.nodeType === "input");
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const filterNodes = $nodes.filter((n) => n.nodeType === "filter");
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const orderedNodes = [].concat(filterNodes, outputNodes).filter((n) => n != undefined);
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const filled = [];
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let newEdges = [];
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function connectNode(n1, rest) {
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for (let i = 0; i < n1.data.outputs.length; i++) {
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const edgeType = n1.data.outputs[i];
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for (let j = 0; j < rest.length; j++) {
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let found = false;
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const n2 = rest[j];
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for (let k = 0; k < n2.data.inputs.length; k++) {
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const targetEdgeType = n2.data.inputs[k];
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if (edgeType === targetEdgeType && !filled.includes(n2.id + k)) {
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newEdges.push({
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id: uuidv4(),
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type: "default",
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source: n1.id,
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target: n2.id,
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sourceHandle: edgeType + "_" + i,
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targetHandle: edgeType + "_" + k,
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});
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filled.push(n2.id + k);
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found = true;
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break;
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}
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}
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if (found) break;
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}
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}
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const nextNode = rest.shift();
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if (nextNode) {
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connectNode(nextNode, rest);
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}
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}
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for (let inpNode of inputNodes) {
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connectNode(inpNode, [...orderedNodes]);
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}
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edges.set(newEdges);
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});
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export function addNode(_data, type) {
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const data = JSON.parse(JSON.stringify(_data));
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let ins = [];
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let outs = [];
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if (type === "input") {
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outs = ["v", "a"];
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} else if (type === "output") {
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ins = ["v", "a"];
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} else if (type === "filter") {
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if (data.params) {
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data.params = data.params.map((p) => {
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p.value = null;
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if (p.default != null) p.value = p.default;
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return p;
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});
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}
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ins = data.inputs;
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outs = data.outputs;
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}
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data.nodeType = type;
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data.inputs = ins;
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data.outputs = outs;
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let node = {
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id: uuidv4(),
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type: "ffmpeg",
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data: data,
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nodeType: type,
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position: { x: 0, y: 0 },
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};
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nodes.update((_nodes) => {
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_nodes.push(node);
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_nodes = autoLayout(_nodes);
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if (node.nodeType === "filter") {
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selectedFilter.set(_nodes.length - 1);
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}
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return _nodes;
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});
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}
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function autoLayout(_nodes) {
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const isAuto = get(auto);
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if (isAuto) {
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const w = 120;
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const h = 50;
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const margin = 50;
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let prev = null;
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for (let n of _nodes) {
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if (n.nodeType === "input") {
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n.position = { x: 0, y: prev ? prev.position.y + h + margin : 0 };
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prev = n;
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}
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}
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for (let n of _nodes) {
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if (n.nodeType === "filter") {
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let _w = prev && prev.width ? prev.width : w;
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let _x = prev ? prev.position.x + _w + margin : 0;
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let _y = -50;
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if (n.data.inputs && n.data.inputs[0] && n.data.inputs[0] === "a") {
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_y = 50;
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}
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n.position = { x: _x, y: _y };
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prev = n;
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}
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}
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for (let n of _nodes) {
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if (n.nodeType === "output") {
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let _w = prev && prev.width ? prev.width : w;
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n.position = { x: prev ? prev.position.x + _w + margin : 0, y: 0 };
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}
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}
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}
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return _nodes;
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}
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export function copyNode(node) {
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const oldId = node.id;
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node = JSON.parse(JSON.stringify(node));
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node.id = uuidv4();
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nodes.update((_nodes) => {
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_nodes.push(node);
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const index = _nodes.findIndex((n) => n.id === oldId);
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_nodes.splice(index, 1);
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_nodes = autoLayout(_nodes);
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if (node.nodeType === "filter") {
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selectedFilter.set(_nodes.length - 1);
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}
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return _nodes;
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});
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}
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export function resetNodes() {
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nodes.set([]);
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addNode({ name: "punch.mp4" }, "input");
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addNode({ name: "out.mp4" }, "output");
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}
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export function removeNode(id) {
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nodes.update((_nodes) => {
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const index = _nodes.findIndex((n) => n.id === id);
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_nodes.splice(index, 1);
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return _nodes;
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});
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}
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export function removeEdge(id) {
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edges.update((_edges) => {
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const index = _edges.findIndex((e) => e.id === id);
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_edges.splice(index, 1);
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return _edges;
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});
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}
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