First release

node_modules/mpd-parser/test/segment/segmentBase.test.js

@@ -0,0 +1,201 @@
+import QUnit from 'qunit';
+import {
+  segmentsFromBase,
+  addSidxSegmentsToPlaylist
+} from '../../src/segment/segmentBase';
+import errors from '../../src/errors';
+
+QUnit.module('segmentBase - segmentsFromBase');
+
+QUnit.test('sets segment to baseUrl', function(assert) {
+  const inputAttributes = {
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: { sourceURL: 'http://www.example.com/init.fmp4' }
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4'
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+QUnit.test('sets duration based on sourceDuration', function(assert) {
+  const inputAttributes = {
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: { sourceURL: 'http://www.example.com/init.fmp4' },
+    sourceDuration: 10
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    duration: 10,
+    timeline: 0,
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4'
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+// sourceDuration comes from mediaPresentationDuration. The DASH spec defines the type of
+// mediaPresentationDuration as xs:duration, which follows ISO 8601. It does not need to
+// be adjusted based on timescale.
+//
+// References:
+// https://www.w3.org/TR/xmlschema-2/#duration
+// https://en.wikipedia.org/wiki/ISO_8601
+QUnit.test('sets duration based on sourceDuration and not @timescale', function(assert) {
+  const inputAttributes = {
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: { sourceURL: 'http://www.example.com/init.fmp4' },
+    sourceDuration: 10,
+    timescale: 2
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    duration: 10,
+    timeline: 0,
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4'
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+QUnit.test('sets duration based on @duration', function(assert) {
+  const inputAttributes = {
+    duration: 10,
+    sourceDuration: 20,
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: { sourceURL: 'http://www.example.com/init.fmp4' },
+    periodIndex: 0
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    duration: 10,
+    timeline: 0,
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4'
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+QUnit.test('sets duration based on @duration and @timescale', function(assert) {
+  const inputAttributes = {
+    duration: 10,
+    sourceDuration: 20,
+    timescale: 5,
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: { sourceURL: 'http://www.example.com/init.fmp4' },
+    periodIndex: 0
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    duration: 2,
+    timeline: 0,
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4'
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+QUnit.test('translates ranges in <Initialization> node', function(assert) {
+  const inputAttributes = {
+    duration: 10,
+    sourceDuration: 20,
+    timescale: 5,
+    baseUrl: 'http://www.example.com/i.fmp4',
+    initialization: {
+      sourceURL: 'http://www.example.com/init.fmp4',
+      range: '121-125'
+    },
+    periodIndex: 0
+  };
+
+  assert.deepEqual(segmentsFromBase(inputAttributes), [{
+    duration: 2,
+    timeline: 0,
+    map: {
+      resolvedUri: 'http://www.example.com/init.fmp4',
+      uri: 'http://www.example.com/init.fmp4',
+      byterange: {
+        length: 5,
+        offset: 121
+      }
+    },
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    uri: 'http://www.example.com/i.fmp4',
+    number: 0
+  }]);
+});
+
+QUnit.test('errors if no baseUrl exists', function(assert) {
+  assert.throws(() => segmentsFromBase({}), new Error(errors.NO_BASE_URL));
+});
+
+QUnit.module('segmentBase - addSidxSegmentsToPlaylist');
+
+QUnit.test('generates playlist from sidx references', function(assert) {
+  const baseUrl = 'http://www.example.com/i.fmp4';
+  const playlist = {
+    sidx: {
+      map: {
+        byterange: {
+          offset: 0,
+          length: 10
+        }
+      },
+      duration: 10,
+      byterange: {
+        offset: 9,
+        length: 11
+      }
+    },
+    segments: []
+  };
+  const sidx = {
+    timescale: 1,
+    firstOffset: 0,
+    references: [{
+      referenceType: 0,
+      referencedSize: 5,
+      subsegmentDuration: 2
+    }]
+  };
+
+  assert.deepEqual(addSidxSegmentsToPlaylist(playlist, sidx, baseUrl).segments, [{
+    map: {
+      byterange: {
+        offset: 0,
+        length: 10
+      }
+    },
+    uri: 'http://www.example.com/i.fmp4',
+    resolvedUri: 'http://www.example.com/i.fmp4',
+    byterange: {
+      offset: 20,
+      length: 5
+    },
+    duration: 2,
+    timeline: 0,
+    number: 0
+  }]);
+});