fix: Apply playRange config to src= (#7168)

Fixes #7135

lib/player.js

@@ -2944,8 +2944,21 @@ shaka.Player = class extends shaka.util.FakeEventTarget {
 
     // By setting |src| we are done "loading" with src=. We don't need to set
     // the current time because |playhead| will do that for us.
-    mediaElement.src = this.cmcdManager_.appendSrcData(
-        this.assetUri_, mimeType);
+    let playbackUri = this.cmcdManager_.appendSrcData(this.assetUri_, mimeType);
+    // Apply temporal clipping using playRangeStart and playRangeEnd based
+    // in https://www.w3.org/TR/media-frags/
+    if (!playbackUri.includes('#t=') &&
+        (this.config_.playRangeStart > 0 ||
+        isFinite(this.config_.playRangeEnd))) {
+      playbackUri += '#t=';
+      if (this.config_.playRangeStart > 0) {
+        playbackUri += this.config_.playRangeStart;
+      }
+      if (isFinite(this.config_.playRangeEnd)) {
+        playbackUri += ',' + this.config_.playRangeEnd;
+      }
+    }
+    mediaElement.src = playbackUri;
 
     // Tizen 3 / WebOS won't load anything unless you call load() explicitly,
     // no matter the value of the preload attribute.  This is harmful on some

test/player_src_equals_integration.js

@@ -252,6 +252,23 @@ describe('Player Src Equals', () => {
     expect(player.getTextTracks()).toEqual([]);
   });
 
+  it('configures play and seek range for VOD with start', async () => {
+    player.configure({playRangeStart: 3});
+    await loadWithSrcEquals(SMALL_MP4_CONTENT_URI, /* startTime= */ null);
+    expect(video.src.includes('#t=3')).toBeTruthy();
+  });
+
+  it('configures play and seek range for VOD with end', async () => {
+    player.configure({playRangeEnd: 8});
+    await loadWithSrcEquals(SMALL_MP4_CONTENT_URI, /* startTime= */ null);
+    expect(video.src.includes('#t=,8')).toBeTruthy();
+  });
+
+  it('configures play and seek range for VOD with start and end', async () => {
+    player.configure({playRangeStart: 3, playRangeEnd: 8});
+    await loadWithSrcEquals(SMALL_MP4_CONTENT_URI, /* startTime= */ null);
+    expect(video.src.includes('#t=3,8')).toBeTruthy();
+  });
 
   // TODO: test HLS on platforms with native HLS
   it('returns no languages or roles for simple mp4 content', async () => {