Fix track selection when forceLowestBitrate is enabled:

- Only use bitrate when comparing two tracks if their bitrates are
  actually different.
- For audio, prefer to use bitrate over selection flags.

-------------
Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=218660886

library/core/src/main/java/com/google/android/exoplayer2/trackselection/DefaultTrackSelector.java

@@ -1651,9 +1651,10 @@ public class DefaultTrackSelector extends MappingTrackSelector {
           }
           boolean selectTrack = trackScore > selectedTrackScore;
           if (trackScore == selectedTrackScore) {
-            if (params.forceLowestBitrate) {
+            int bitrateComparison = compareFormatValues(format.bitrate, selectedBitrate);
+            if (params.forceLowestBitrate && bitrateComparison != 0) {
               // Use bitrate as a tie breaker, preferring the lower bitrate.
-              selectTrack = compareFormatValues(format.bitrate, selectedBitrate) < 0;
+              selectTrack = bitrateComparison < 0;
             } else {
               // Use the pixel count as a tie breaker (or bitrate if pixel counts are tied). If
               // we're within constraints prefer a higher pixel count (or bitrate), else prefer a
@@ -2173,23 +2174,29 @@ public class DefaultTrackSelector extends MappingTrackSelector {
       if (this.withinRendererCapabilitiesScore != other.withinRendererCapabilitiesScore) {
         return compareInts(this.withinRendererCapabilitiesScore,
             other.withinRendererCapabilitiesScore);
-      } else if (this.matchLanguageScore != other.matchLanguageScore) {
+      }
+      if (this.matchLanguageScore != other.matchLanguageScore) {
         return compareInts(this.matchLanguageScore, other.matchLanguageScore);
-      } else if (this.defaultSelectionFlagScore != other.defaultSelectionFlagScore) {
-        return compareInts(this.defaultSelectionFlagScore, other.defaultSelectionFlagScore);
-      } else if (parameters.forceLowestBitrate) {
-        return compareInts(other.bitrate, this.bitrate);
-      } else {
-        // If the format are within renderer capabilities, prefer higher values of channel count,
-        // sample rate and bit rate in that order. Otherwise, prefer lower values.
-        int resultSign = withinRendererCapabilitiesScore == 1 ? 1 : -1;
-        if (this.channelCount != other.channelCount) {
-          return resultSign * compareInts(this.channelCount, other.channelCount);
-        } else if (this.sampleRate != other.sampleRate) {
-          return resultSign * compareInts(this.sampleRate, other.sampleRate);
+      }
+      if (parameters.forceLowestBitrate) {
+        int bitrateComparison = compareFormatValues(bitrate, other.bitrate);
+        if (bitrateComparison != 0) {
+          return bitrateComparison > 0 ? -1 : 1;
         }
-        return resultSign * compareInts(this.bitrate, other.bitrate);
       }
+      if (this.defaultSelectionFlagScore != other.defaultSelectionFlagScore) {
+        return compareInts(this.defaultSelectionFlagScore, other.defaultSelectionFlagScore);
+      }
+      // If the formats are within renderer capabilities then prefer higher values of channel count,
+      // sample rate and bit rate in that order. Otherwise, prefer lower values.
+      int resultSign = withinRendererCapabilitiesScore == 1 ? 1 : -1;
+      if (this.channelCount != other.channelCount) {
+        return resultSign * compareInts(this.channelCount, other.channelCount);
+      }
+      if (this.sampleRate != other.sampleRate) {
+        return resultSign * compareInts(this.sampleRate, other.sampleRate);
+      }
+      return resultSign * compareInts(this.bitrate, other.bitrate);
     }
   }
 

library/ui/src/main/res/values-ar/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">تكرار الكل</string>
   <string name="exo_controls_shuffle_description">ترتيب عشوائي</string>
   <string name="exo_controls_fullscreen_description">وضع ملء الشاشة</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">الخروج من وضع VR</string>
   <string name="exo_download_description">تنزيل</string>
   <string name="exo_download_notification_channel_name">التنزيلات</string>
   <string name="exo_download_downloading">جارٍ التنزيل.</string>

library/ui/src/main/res/values-az/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Hamısı təkrarlansın</string>
   <string name="exo_controls_shuffle_description">Qarışdırın</string>
   <string name="exo_controls_fullscreen_description">Tam ekran rejimi</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">VR rejimdən çıxın</string>
   <string name="exo_download_description">Endirin</string>
   <string name="exo_download_notification_channel_name">Endirmələr</string>
   <string name="exo_download_downloading">Endirilir</string>

library/ui/src/main/res/values-bs/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Ponovi sve</string>
   <string name="exo_controls_shuffle_description">Izmiješaj</string>
   <string name="exo_controls_fullscreen_description">Način rada preko cijelog ekrana</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Izlazak iz VR načina</string>
   <string name="exo_download_description">Preuzmi</string>
   <string name="exo_download_notification_channel_name">Preuzimanja</string>
   <string name="exo_download_downloading">Preuzimanje</string>

library/ui/src/main/res/values-fa/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">تکرار همه</string>
   <string name="exo_controls_shuffle_description">درهم</string>
   <string name="exo_controls_fullscreen_description">حالت تمام‌صفحه</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">خروج از حالت واقعیت مجازی</string>
   <string name="exo_download_description">بارگیری</string>
   <string name="exo_download_notification_channel_name">بارگیری‌ها</string>
   <string name="exo_download_downloading">درحال بارگیری</string>

library/ui/src/main/res/values-hr/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Ponovi sve</string>
   <string name="exo_controls_shuffle_description">Reproduciraj nasumično</string>
   <string name="exo_controls_fullscreen_description">Prikaz na cijelom zaslonu</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Izlazak iz VR načina</string>
   <string name="exo_download_description">Preuzmi</string>
   <string name="exo_download_notification_channel_name">Preuzimanja</string>
   <string name="exo_download_downloading">Preuzimanje</string>

library/ui/src/main/res/values-in/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Ulangi semua</string>
   <string name="exo_controls_shuffle_description">Acak</string>
   <string name="exo_controls_fullscreen_description">Mode layar penuh</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Keluar dari mode VR</string>
   <string name="exo_download_description">Download</string>
   <string name="exo_download_notification_channel_name">Download</string>
   <string name="exo_download_downloading">Mendownload</string>

library/ui/src/main/res/values-ka/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">ყველას გამეორება</string>
   <string name="exo_controls_shuffle_description">არეულად დაკვრა</string>
   <string name="exo_controls_fullscreen_description">სრულეკრანიანი რეჟიმი</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">VR რეჟიმიდან გასვლა</string>
   <string name="exo_download_description">ჩამოტვირთვა</string>
   <string name="exo_download_notification_channel_name">ჩამოტვირთვები</string>
   <string name="exo_download_downloading">მიმდინარეობს ჩამოტვირთვა</string>

library/ui/src/main/res/values-my/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">အားလုံး ပြန်ကျော့ရန်</string>
   <string name="exo_controls_shuffle_description">ရောသမမွှေ</string>
   <string name="exo_controls_fullscreen_description">မျက်နှာပြင်အပြည့် မုဒ်</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">VR မုဒ်မှထွက်ပါ</string>
   <string name="exo_download_description">ဒေါင်းလုဒ် လုပ်ရန်</string>
   <string name="exo_download_notification_channel_name">ဒေါင်းလုဒ်များ</string>
   <string name="exo_download_downloading">ဒေါင်းလုဒ်လုပ်နေသည်</string>

library/ui/src/main/res/values-sk/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Opakovať všetko</string>
   <string name="exo_controls_shuffle_description">Náhodne prehrávať</string>
   <string name="exo_controls_fullscreen_description">Režim celej obrazovky</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Ukončiť režim VR</string>
   <string name="exo_download_description">Stiahnuť</string>
   <string name="exo_download_notification_channel_name">Stiahnuté</string>
   <string name="exo_download_downloading">Sťahuje sa</string>

library/ui/src/main/res/values-sq/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Përsërit të gjitha</string>
   <string name="exo_controls_shuffle_description">Përziej</string>
   <string name="exo_controls_fullscreen_description">Modaliteti me ekran të plotë</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Dil nga modaliteti VR</string>
   <string name="exo_download_description">Shkarko</string>
   <string name="exo_download_notification_channel_name">Shkarkimet</string>
   <string name="exo_download_downloading">Po shkarkohet</string>

library/ui/src/main/res/values-uz/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Hammasini takrorlash</string>
   <string name="exo_controls_shuffle_description">Aralash</string>
   <string name="exo_controls_fullscreen_description">Butun ekran rejimi</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">VR rejimidan chiqish</string>
   <string name="exo_download_description">Yuklab olish</string>
   <string name="exo_download_notification_channel_name">Yuklanmalar</string>
   <string name="exo_download_downloading">Yuklab olinmoqda</string>

library/ui/src/main/res/values-zu/strings.xml

@@ -12,7 +12,7 @@
   <string name="exo_controls_repeat_all_description">Phinda konke</string>
   <string name="exo_controls_shuffle_description">Shova</string>
   <string name="exo_controls_fullscreen_description">Imodi yesikrini esigcwele</string>
-  <string name="exo_controls_exit_vr_description">Exit VR mode</string>
+  <string name="exo_controls_exit_vr_description">Phuma kumodi ye-VR</string>
   <string name="exo_download_description">Landa</string>
   <string name="exo_download_notification_channel_name">Ukulandwa</string>
   <string name="exo_download_downloading">Iyalanda</string>