fix: Fix detection of ac4, dts, and dolby h265

Author: avelad

lib/util/manifest_parser_utils.js

@@ -168,6 +168,7 @@ shaka.util.ManifestParserUtils.VIDEO_CODEC_REGEXPS_ = [
   /^hvc/,
   /^vp0?[89]/,
   /^av01/,
+  /^dvhe/,
 ];
 
 
@@ -183,6 +184,9 @@ shaka.util.ManifestParserUtils.AUDIO_CODEC_REGEXPS_ = [
   /^flac$/,
   /^mp4a/,
   /^[ae]c-3$/,
+  /^ac-4$/,
+  /^dts[cx]$/, // DTS Surround Sound
+  /^[du]dts$/, // DTS Surround Sound
 ];