diff --git a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
index 2858565..7936e59 100644
--- a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
+++ b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
@@ -39,4 +39,5 @@
   boolean isCheckCrc;
   boolean isRepeat;
   boolean isRaw;
+  int bitWidthOfLengthField;
 }
diff --git a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
index f6788ee..aa30175 100644
--- a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
+++ b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterSectionSettings.aidl
@@ -19,7 +19,7 @@
 import android.hardware.tv.tuner.DemuxFilterSectionSettingsCondition;
 
 /**
- * Filter Settings for Section data according to ISO/IEC 13818-1.
+ * Filter Settings for Section data according to ISO/IEC 13818-1 and ISO/IEC 23008-1.
  * @hide
  */
 @VintfStability
@@ -49,4 +49,12 @@
      * true if the filter send onFilterStatus instead of onFilterEvent.
      */
     boolean isRaw;
+
+    /**
+     * The bit width of the MMTP (MPEG Media Transport Protocol) section message's length field
+     * according to ISO/IEC 23008-1.
+     *
+     * The filter uses this for CRC checking when isCheckCrc is true.
+     */
+    int bitWidthOfLengthField;
 }
diff --git a/tv/tuner/config/TunerTestingConfigAidlReaderV1_0.h b/tv/tuner/config/TunerTestingConfigAidlReaderV1_0.h
index b6cc5f8..b73d594 100644
--- a/tv/tuner/config/TunerTestingConfigAidlReaderV1_0.h
+++ b/tv/tuner/config/TunerTestingConfigAidlReaderV1_0.h
@@ -954,6 +954,7 @@
         settings.isCheckCrc = section->getIsCheckCrc();
         settings.isRepeat = section->getIsRepeat();
         settings.isRaw = section->getIsRaw();
+        settings.bitWidthOfLengthField = section->getBitWidthOfLengthField();
         return settings;
     }
 
diff --git a/tv/tuner/config/api/current.txt b/tv/tuner/config/api/current.txt
index db1d076..4d519d7 100644
--- a/tv/tuner/config/api/current.txt
+++ b/tv/tuner/config/api/current.txt
@@ -477,9 +477,11 @@
 
   public class SectionFilterSettings {
     ctor public SectionFilterSettings();
+    method @Nullable public java.math.BigInteger getBitWidthOfLengthField();
     method @Nullable public boolean getIsCheckCrc();
     method @Nullable public boolean getIsRaw();
     method @Nullable public boolean getIsRepeat();
+    method public void setBitWidthOfLengthField(@Nullable java.math.BigInteger);
     method public void setIsCheckCrc(@Nullable boolean);
     method public void setIsRaw(@Nullable boolean);
     method public void setIsRepeat(@Nullable boolean);
diff --git a/tv/tuner/config/tuner_testing_dynamic_configuration.xsd b/tv/tuner/config/tuner_testing_dynamic_configuration.xsd
index 54cedfc..94f108b 100644
--- a/tv/tuner/config/tuner_testing_dynamic_configuration.xsd
+++ b/tv/tuner/config/tuner_testing_dynamic_configuration.xsd
@@ -226,6 +226,7 @@
         <xs:attribute name="isCheckCrc" type="xs:boolean" use="required"/>
         <xs:attribute name="isRepeat" type="xs:boolean" use="required"/>
         <xs:attribute name="isRaw" type="xs:boolean" use="required"/>
+        <xs:attribute name="bitWidthOfLengthField" type="xs:nonNegativeInteger" use="required"/>
     </xs:complexType>
     <xs:complexType name="recordFilterSettings">
         <xs:attribute name="tsIndexMask" type="tsIndexMask" use="required"/>