xmeml: support multiple <track>

fixes #1195

src/__snapshots__/edlFormats.test.js.snap

@@ -95,6 +95,59 @@ Array [
 ]
 `;
 
+exports[`parses xmeml - with multiple tracks 1`] = `
+Array [
+  Object {
+    "end": 11,
+    "start": 0,
+  },
+  Object {
+    "end": 4.08,
+    "start": 0.96,
+  },
+  Object {
+    "end": 3.88,
+    "start": 1.12,
+  },
+  Object {
+    "end": 4.32,
+    "start": 0.84,
+  },
+  Object {
+    "end": 3.36,
+    "start": 0.36,
+  },
+  Object {
+    "end": 6.24,
+    "start": 0.36,
+  },
+  Object {
+    "end": 4.52,
+    "start": 0.24,
+  },
+  Object {
+    "end": 2.48,
+    "start": 0.48,
+  },
+  Object {
+    "end": 2.36,
+    "start": 0.48,
+  },
+  Object {
+    "end": 1.36,
+    "start": 0.36,
+  },
+  Object {
+    "end": 1.36,
+    "start": 0.36,
+  },
+  Object {
+    "end": 1.04,
+    "start": 0.36,
+  },
+]
+`;
+
 exports[`parses xmeml 1 1`] = `
 Array [
   Object {

src/edlFormats.js

@@ -6,7 +6,6 @@ import csvStringify from 'csv-stringify/lib/browser';
 import pify from 'pify';
 import sortBy from 'lodash/sortBy';
 
-import _ from 'lodash';
 import { formatDuration } from './util/duration';
 import { invertSegments, sortSegments } from './segments';
 
@@ -138,15 +137,22 @@ export function parseXmeml(xmlStr) {
   if (!xmeml) throw Error('Root element <xmeml> not found in file');
 
   let sequence;
-  if (_.property('project.children.sequence.media.video.track.clipitem')(xmeml)) {
+
+  if (xmeml.project?.children?.sequence) {
     sequence = xmeml.project.children.sequence;
-  } else if (_.property('sequence.media.video.track.clipitem')(xmeml)) {
+  } else if (xmeml.sequence) {
     sequence = xmeml.sequence;
   } else {
-    throw Error('No <clipitem> elements found in file');
+    throw new Error('No <sequence> element found');
   }
 
-  return sequence.media.video.track.clipitem.map((item) => ({ start: item.in / item.rate.timebase, end: item.out / item.rate.timebase }));
+  if (!sequence?.media?.video?.track) {
+    throw new Error('No <track> element found');
+  }
+
+  const mainTrack = Array.isArray(sequence.media.video.track) ? sequence.media.video.track[0] : sequence.media.video.track;
+
+  return mainTrack.clipitem.map((item) => ({ start: item.in / item.rate.timebase, end: item.out / item.rate.timebase }));
 }
 
 export function parseYouTube(str) {

src/edlFormats.test.js

@@ -159,6 +159,11 @@ it('parses xmeml 2', async () => {
   expect(await parseXmeml(await readFixture('Final Cut Pro XMEML 2.xml'))).toMatchSnapshot();
 });
 
+// see https://github.com/mifi/lossless-cut/issues/1195
+it('parses xmeml - with multiple tracks', async () => {
+  expect(await parseXmeml(await readFixture('Final Cut Pro XMEML 3.xml'))).toMatchSnapshot();
+});
+
 // https://github.com/mifi/lossless-cut/issues/1024
 const csvFramesStr = `\
 0,155,EP106_SQ010_SH0010