Fix: Add support to file type in mediaCapabilities implementation (#3570

)

If it's srcEquals, the 'type' element of the input object when querying mediaCapabilities should be 'file'. Otherwise it should be 'media-source' .
Issue: #3530

lib/media/drm_engine.js

@@ -125,6 +125,9 @@ shaka.media.DrmEngine = class {
 
     /** @const {!shaka.util.Destroyer} */
     this.destroyer_ = new shaka.util.Destroyer(() => this.destroyNow_());
+
+    /** @private {boolean} */
+    this.srcEquals_ = false;
   }
 
   /** @override */
@@ -180,6 +183,7 @@ shaka.media.DrmEngine = class {
     this.config_ = null;
     this.onError_ = () => {};
     this.playerInterface_ = null;
+    this.srcEquals_ = false;
   }
 
   /**
@@ -193,6 +197,13 @@ shaka.media.DrmEngine = class {
     this.config_ = config;
   }
 
+  /**
+   * @param {!boolean} value
+   */
+  setSrcEquals(value) {
+    this.srcEquals_ = value;
+  }
+
   /**
    * Initialize the drm engine for storing and deleting stored content.
    *
@@ -351,7 +362,7 @@ shaka.media.DrmEngine = class {
     // We should get the decodingInfo results for the variants after we filling
     // in the drm infos, and before queryMediaKeys_().
     await shaka.util.StreamUtils.getDecodingInfosForVariants(variants,
-        this.usePersistentLicenses_);
+        this.usePersistentLicenses_, this.srcEquals_);
 
     const hasDrmInfo = hadDrmInfo || Object.keys(this.config_.servers).length;
     // An unencrypted content is initialized.

lib/player.js

@@ -2058,6 +2058,7 @@ shaka.Player = class extends shaka.util.FakeEventTarget {
       decodingInfos: [],
     };
 
+    this.drmEngine_.setSrcEquals(/* srcEquals= */ true);
     await this.drmEngine_.initForPlayback(
         [variant], /* offlineSessionIds= */ []);
     await this.drmEngine_.attach(has.mediaElement);

lib/util/stream_utils.js

@@ -423,7 +423,7 @@ shaka.util.StreamUtils = class {
         'MediaCapabilities should be valid.');
 
     await shaka.util.StreamUtils.getDecodingInfosForVariants(
-        manifest.variants, usePersistentLicenses);
+        manifest.variants, usePersistentLicenses, /* srcEquals= */ false);
     manifest.variants = manifest.variants.filter((variant) => {
       const video = variant.video;
       // See: https://github.com/google/shaka-player/issues/3380
@@ -456,9 +456,11 @@ shaka.util.StreamUtils = class {
    *
    * @param {!Array.<shaka.extern.Variant>} variants
    * @param {boolean} usePersistentLicenses
+   * @param {boolean} srcEquals
    * @exportDoc
    */
-  static async getDecodingInfosForVariants(variants, usePersistentLicenses) {
+  static async getDecodingInfosForVariants(variants, usePersistentLicenses,
+      srcEquals) {
     const gotDecodingInfo = variants.some((variant) =>
       variant.decodingInfos.length);
     if (gotDecodingInfo) {
@@ -482,7 +484,7 @@ shaka.util.StreamUtils = class {
     for (const variant of variants) {
       /** @type {!Array.<!MediaDecodingConfiguration>} */
       const decodingConfigs = shaka.util.StreamUtils.getDecodingConfigs_(
-          variant, usePersistentLicenses);
+          variant, usePersistentLicenses, srcEquals);
 
       for (const config of decodingConfigs) {
         operations.push(getVariantDecodingInfos(variant, config));
@@ -497,17 +499,18 @@ shaka.util.StreamUtils = class {
    * results for each variant.
    * @param {!shaka.extern.Variant} variant
    * @param {boolean} usePersistentLicenses
+   * @param {boolean} srcEquals
    * @return {!Array.<!MediaDecodingConfiguration>}
    * @private
    */
-  static getDecodingConfigs_(variant, usePersistentLicenses) {
+  static getDecodingConfigs_(variant, usePersistentLicenses, srcEquals) {
     const audio = variant.audio;
     const video = variant.video;
     const ContentType = shaka.util.ManifestParserUtils.ContentType;
 
     /** @type {!MediaDecodingConfiguration} */
     const mediaDecodingConfig = {
-      type: 'media-source',
+      type: srcEquals ? 'file' : 'media-source',
     };
 
     if (video) {

test/util/stream_utils_unit.js

@@ -488,7 +488,23 @@ describe('StreamUtils', () => {
       });
 
       await StreamUtils.getDecodingInfosForVariants(manifest.variants,
-          /* usePersistentLicenses= */false);
+          /* usePersistentLicenses= */false, /* srcEquals= */ false);
+      expect(manifest.variants.length).toBeTruthy();
+      expect(manifest.variants[0].decodingInfos.length).toBe(1);
+      expect(manifest.variants[0].decodingInfos[0].supported).toBeTruthy();
+    });
+
+    it('for srcEquals content', async () => {
+      manifest = shaka.test.ManifestGenerator.generate((manifest) => {
+        manifest.addVariant(0, (variant) => {
+          variant.addVideo(1, (stream) => {
+            stream.mime('video/mp4', 'avc1.4d400d');
+          });
+        });
+      });
+
+      await StreamUtils.getDecodingInfosForVariants(manifest.variants,
+          /* usePersistentLicenses= */false, /* srcEquals= */ true);
       expect(manifest.variants.length).toBeTruthy();
       expect(manifest.variants[0].decodingInfos.length).toBe(1);
       expect(manifest.variants[0].decodingInfos[0].supported).toBeTruthy();
@@ -517,7 +533,7 @@ describe('StreamUtils', () => {
       });
 
       await StreamUtils.getDecodingInfosForVariants(manifest.variants,
-          /* usePersistentLicenses= */false);
+          /* usePersistentLicenses= */false, /* srcEquals= */ false);
       expect(manifest.variants.length).toBe(1);
       expect(manifest.variants[0].decodingInfos.length).toBe(0);
     });
@@ -820,7 +836,7 @@ describe('StreamUtils', () => {
       });
 
       await StreamUtils.getDecodingInfosForVariants(manifest.variants,
-          /* usePersistentLicenses= */false);
+          /* usePersistentLicenses= */false, /* srcEquals= */ false);
 
       shaka.util.StreamUtils.chooseCodecsAndFilterManifest(manifest,
           /* preferredVideoCodecs= */[],