Add a settings flag to ignore the keystatusmap (Dash-Industry-Forum#4629)

Author: dsilhavy

index.d.ts

@@ -1079,6 +1079,7 @@ declare namespace dashjs {
                 keepProtectionMediaKeys?: boolean,
                 ignoreEmeEncryptedEvent?: boolean,
                 detectPlayreadyMessageFormat?: boolean,
+                ignoreKeyStatuses?: boolean,
             },
             buffer?: {
                 enableSeekDecorrelationFix?: boolean,

src/core/Settings.js

@@ -102,6 +102,7 @@ import Events from './events/Events.js';
  *                keepProtectionMediaKeys: false,
  *                ignoreEmeEncryptedEvent: false,
  *                detectPlayreadyMessageFormat: true,
+ *                ignoreKeyStatuses: false
  *            },
  *            buffer: {
  *                enableSeekDecorrelationFix: false,
@@ -673,6 +674,9 @@ import Events from './events/Events.js';
  *
  * @property {boolean} [detectPlayreadyMessageFormat=true]
  * If set to true the player will use the raw unwrapped message from the Playready CDM
+ *
+ * @property {boolean} [ignoreKeyStatusest=false]
+ * If set to true the player will ignore the status of a key and try to play the corresponding track regardless whether the key is usable or not.
  */
 
 /**
@@ -885,7 +889,7 @@ import Events from './events/Events.js';
  * If not specified this value defaults to ['segment'].
  * @property {number} [version=1]
  * The version of the CMCD to use.
- * 
+ *
  * If not specified this value defaults to 1.
  */
 
@@ -1109,6 +1113,7 @@ function Settings() {
                 keepProtectionMediaKeys: false,
                 ignoreEmeEncryptedEvent: false,
                 detectPlayreadyMessageFormat: true,
+                ignoreKeyStatuses: false
             },
             buffer: {
                 enableSeekDecorrelationFix: false,

src/streaming/protection/controllers/ProtectionController.js

@@ -1138,7 +1138,9 @@ function ProtectionController(config) {
                 }
 
                 const keyIdInHex = Utils.bufferSourceToHex(keyStatus.keyId).slice(0, 32);
-                keyStatusMap.set(keyIdInHex, keyStatus.status);
+                if (keyIdInHex && keyIdInHex !== '') {
+                    keyStatusMap.set(keyIdInHex, keyStatus.status);
+                }
             })
             eventBus.trigger(events.KEY_STATUSES_MAP_UPDATED, { keyStatusMap });
         } catch (e) {
@@ -1159,7 +1161,7 @@ function ProtectionController(config) {
 
     function areKeyIdsUsable(normalizedKeyIds) {
         try {
-            if (!normalizedKeyIds || normalizedKeyIds.size === 0 || !keyStatusMap || keyStatusMap.size === 0) {
+            if (!normalizedKeyIds || normalizedKeyIds.size === 0 || !keyStatusMap || keyStatusMap.size === 0 || settings.get().streaming.protection.ignoreKeyStatuses) {
                 return true;
             }