Add CRC32 checking hint (185c80ab) · Commits · e / os / android_frameworks_base

core/api/system-current.txt

+2 −0

Original line number	Diff line number	Diff line
		@@ -6934,12 +6934,14 @@ package android.media.tv.tuner.filter {
		}

		public abstract class SectionSettings extends android.media.tv.tuner.filter.Settings {
		method public int getBitWidthOfLengthField();
		method public boolean isCrcEnabled();
		method public boolean isRaw();
		method public boolean isRepeat();
		}

		public abstract static class SectionSettings.Builder<T extends android.media.tv.tuner.filter.SectionSettings.Builder<T>> {
		method @NonNull public T setBitWidthOfLengthField(@IntRange(from=0) int);
		method @NonNull public T setCrcEnabled(boolean);
		method @NonNull public T setRaw(boolean);
		method @NonNull public T setRepeat(boolean);

media/java/android/media/tv/tuner/filter/SectionSettings.java

+37 −2

Original line number	Diff line number	Diff line
		@@ -16,12 +16,13 @@

		package android.media.tv.tuner.filter;

		import android.annotation.IntRange;
		import android.annotation.NonNull;
		import android.annotation.SystemApi;
		import android.media.tv.tuner.TunerUtils;

		/**
		* 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
		*/
		@@ -30,12 +31,15 @@ public abstract class SectionSettings extends Settings {
		final boolean mCrcEnabled;
		final boolean mIsRepeat;
		final boolean mIsRaw;
		final int mBitWidthOfLengthField;

		SectionSettings(int mainType, boolean crcEnabled, boolean isRepeat, boolean isRaw) {
		SectionSettings(int mainType, boolean crcEnabled, boolean isRepeat, boolean isRaw,
		int bitWidthOfLengthField) {
		super(TunerUtils.getFilterSubtype(mainType, Filter.SUBTYPE_SECTION));
		mCrcEnabled = crcEnabled;
		mIsRepeat = isRepeat;
		mIsRaw = isRaw;
		mBitWidthOfLengthField = bitWidthOfLengthField;
		}

		/**
		@@ -62,6 +66,7 @@ public abstract class SectionSettings extends Settings {
		public boolean isRepeat() {
		return mIsRepeat;
		}

		/**
		* Returns whether the filter sends {@link FilterCallback#onFilterStatusChanged} instead of
		* {@link FilterCallback#onFilterEvent}.
		@@ -70,6 +75,17 @@ public abstract class SectionSettings extends Settings {
		return mIsRaw;
		}

		/**
		* Returns the bit width of the MMTP (MPEG Media Transport Protocol) section message's length
		* field according to ISO/IEC 23008-1.
		*
		* The section filter uses this for CRC (Cyclic redundancy check) checking when
		* {@link #isCrcEnabled()} is {@code true}.
		*/
		public int getBitWidthOfLengthField() {
		return mBitWidthOfLengthField;
		}

		/**
		* Builder for {@link SectionSettings}.
		*
		@@ -80,6 +96,7 @@ public abstract class SectionSettings extends Settings {
		boolean mCrcEnabled;
		boolean mIsRepeat;
		boolean mIsRaw;
		int mBitWidthOfLengthField;

		Builder(int mainType) {
		mMainType = mainType;
		@@ -114,6 +131,7 @@ public abstract class SectionSettings extends Settings {
		mIsRepeat = isRepeat;
		return self();
		}

		/**
		* Sets whether the filter send onFilterStatus instead of
		* {@link FilterCallback#onFilterEvent}.
		@@ -124,6 +142,23 @@ public abstract class SectionSettings extends Settings {
		return self();
		}

		/**
		* Sets the bit width for the MMTP(MPEG Media Transport Protocol) section message's length
		* field according to ISO/IEC 23008-1.
		*
		* The section filter uses this for CRC (Cyclic redundancy check) checking when
		* {@link #isCrcEnabled()} is {@code true}.
		*
		* <p>This field is only supported in Tuner 2.0 or higher version. Unsupported version will
		* cause no-op. Use {@link android.media.tv.tuner.TunerVersionChecker#getTunerVersion()}
		* to get the version information.
		*/
		@NonNull
		public T setBitWidthOfLengthField(@IntRange(from = 0) int bitWidthOfLengthField) {
		mBitWidthOfLengthField = bitWidthOfLengthField;
		return self();
		}

		/* package */ abstract T self();
		}
		}

media/java/android/media/tv/tuner/filter/SectionSettingsWithSectionBits.java

+4 −5

Original line number	Diff line number	Diff line
		@@ -30,10 +30,9 @@ public class SectionSettingsWithSectionBits extends SectionSettings {
		private final byte[] mMask;
		private final byte[] mMode;


		private SectionSettingsWithSectionBits(int mainType, boolean isCheckCrc, boolean isRepeat,
		boolean isRaw, byte[] filter, byte[] mask, byte[] mode) {
		super(mainType, isCheckCrc, isRepeat, isRaw);
		boolean isRaw, int bitWidthOfLengthField, byte[] filter, byte[] mask, byte[] mode) {
		super(mainType, isCheckCrc, isRepeat, isRaw, bitWidthOfLengthField);
		mFilter = filter;
		mMask = mask;
		mMode = mode;
		@@ -126,8 +125,8 @@ public class SectionSettingsWithSectionBits extends SectionSettings {
		*/
		@NonNull
		public SectionSettingsWithSectionBits build() {
		return new SectionSettingsWithSectionBits(
		mMainType, mCrcEnabled, mIsRepeat, mIsRaw, mFilter, mMask, mMode);
		return new SectionSettingsWithSectionBits(mMainType, mCrcEnabled, mIsRepeat, mIsRaw,
		mBitWidthOfLengthField, mFilter, mMask, mMode);
		}

		@Override

media/java/android/media/tv/tuner/filter/SectionSettingsWithTableInfo.java

+4 −4

Original line number	Diff line number	Diff line
		@@ -37,8 +37,8 @@ public class SectionSettingsWithTableInfo extends SectionSettings {
		private final int mVersion;

		private SectionSettingsWithTableInfo(int mainType, boolean isCheckCrc, boolean isRepeat,
		boolean isRaw, int tableId, int version) {
		super(mainType, isCheckCrc, isRepeat, isRaw);
		boolean isRaw, int bitWidthOfLengthField, int tableId, int version) {
		super(mainType, isCheckCrc, isRepeat, isRaw, bitWidthOfLengthField);
		mTableId = tableId;
		mVersion = version;
		}
		@@ -99,8 +99,8 @@ public class SectionSettingsWithTableInfo extends SectionSettings {
		*/
		@NonNull
		public SectionSettingsWithTableInfo build() {
		return new SectionSettingsWithTableInfo(
		mMainType, mCrcEnabled, mIsRepeat, mIsRaw, mTableId, mVersion);
		return new SectionSettingsWithTableInfo(mMainType, mCrcEnabled, mIsRepeat, mIsRaw,
		mBitWidthOfLengthField, mTableId, mVersion);
		}

		@Override

media/jni/android_media_tv_Tuner.cpp

+3 −0

Original line number	Diff line number	Diff line
		@@ -3515,11 +3515,14 @@ static DemuxFilterSectionSettings getFilterSectionSettings(JNIEnv *env, const jo
		bool isCheckCrc = env->GetBooleanField(settings, env->GetFieldID(clazz, "mCrcEnabled", "Z"));
		bool isRepeat = env->GetBooleanField(settings, env->GetFieldID(clazz, "mIsRepeat", "Z"));
		bool isRaw = env->GetBooleanField(settings, env->GetFieldID(clazz, "mIsRaw", "Z"));
		int32_t bitWidthOfLengthField =
		env->GetIntField(settings, env->GetFieldID(clazz, "mBitWidthOfLengthField", "I"));

		DemuxFilterSectionSettings filterSectionSettings {
		.isCheckCrc = isCheckCrc,
		.isRepeat = isRepeat,
		.isRaw = isRaw,
		.bitWidthOfLengthField = bitWidthOfLengthField,
		};
		if (env->IsInstanceOf(
		settings,