fix(MSS): Fix playback of some MSS streams (#7517)

avelad · joeyparrish · commit 4c4f7bf7a497 · 2024-11-12T14:42:30.000-08:00
With this change, no default flags are used. It seems that when a sample has to use the default flags, in Safari, it can cause problems with MSS. With HLS this does not happen. Fixes #7509
diff --git a/lib/util/mp4_generator.js b/lib/util/mp4_generator.js
@@ -765,7 +765,7 @@ shaka.util.Mp4Generator = class {
       0x00, 0x00, 0x00, 0x01, // default_sample_description_index
       0x00, 0x00, 0x00, 0x00, // default_sample_duration
       0x00, 0x00, 0x00, 0x00, // default_sample_size
-      0x00, 0x01, 0x00, 0x01, // default_sample_flags
+      0x00, 0x00, 0x00, 0x00, // default_sample_flags
     ]);
     return Mp4Generator.box('trex', bytes);
   }

Original file line number	Diff line number	Diff line change
`@@ -765,7 +765,7 @@ shaka.util.Mp4Generator = class {`
`765`	`765`	`0x00, 0x00, 0x00, 0x01, // default_sample_description_index`
`766`	`766`	`0x00, 0x00, 0x00, 0x00, // default_sample_duration`
`767`	`767`	`0x00, 0x00, 0x00, 0x00, // default_sample_size`
`768`		`- 0x00, 0x01, 0x00, 0x01, // default_sample_flags`
	`768`	`+ 0x00, 0x00, 0x00, 0x00, // default_sample_flags`
`769`	`769`	`]);`
`770`	`770`	`return Mp4Generator.box('trex', bytes);`
`771`	`771`	`}`