MediaDrm: API to retrieve LogMessages (696989fd) · Commits · e / os / android_frameworks_base

core/api/current.txt

+7 −0

Original line number	Diff line number	Diff line
		@@ -21591,6 +21591,7 @@ package android.media {
		method @android.media.MediaDrm.HdcpLevel public int getConnectedHdcpLevel();
		method public android.media.MediaDrm.CryptoSession getCryptoSession(@NonNull byte[], @NonNull String, @NonNull String);
		method @NonNull public android.media.MediaDrm.KeyRequest getKeyRequest(@NonNull byte[], @Nullable byte[], @Nullable String, int, @Nullable java.util.HashMap<java.lang.String,java.lang.String>) throws android.media.NotProvisionedException;
		method @NonNull public java.util.List<android.media.MediaDrm.LogMessage> getLogMessages();
		method @android.media.MediaDrm.HdcpLevel public int getMaxHdcpLevel();
		method public static int getMaxSecurityLevel();
		method public int getMaxSessionCount();
		@@ -21699,6 +21700,12 @@ package android.media {
		field public static final int STATUS_USABLE_IN_FUTURE = 5; // 0x5
		}

		public static class MediaDrm.LogMessage {
		field @NonNull public final String message;
		field public final int priority;
		field public final long timestampMillis;
		}

		public static final class MediaDrm.MediaDrmStateException extends java.lang.IllegalStateException {
		method @NonNull public String getDiagnosticInfo();
		}

media/java/android/media/MediaDrm.java

+77 −0

Original line number	Diff line number	Diff line
		@@ -38,6 +38,7 @@ import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.lang.ref.WeakReference;
		import java.nio.ByteBuffer;
		import java.time.Instant;
		import java.util.ArrayList;
		import java.util.HashMap;
		import java.util.LinkedHashSet;
		@@ -2493,4 +2494,80 @@ public final class MediaDrm implements AutoCloseable {
		return mPlaybackId;
		}
		}

		/**
		* Returns recent {@link LogMessage LogMessages} associated with this {@link MediaDrm}
		* instance.
		*/
		@NonNull
		public native List<LogMessage> getLogMessages();

		/**
		* A {@link LogMessage} records an event in the {@link MediaDrm} framework
		* or vendor plugin.
		*/
		public static class LogMessage {

		/**
		* Timing of the recorded event measured in milliseconds since the Epoch,
		* 1970-01-01 00:00:00 +0000 (UTC).
		*/
		public final long timestampMillis;

		/**
		* Priority of the recorded event.
		* <p>
		* Possible priority constants are defined in {@link Log}, e.g.:
		* <ul>
		* <li>{@link Log#ASSERT}</li>
		* <li>{@link Log#ERROR}</li>
		* <li>{@link Log#WARN}</li>
		* <li>{@link Log#INFO}</li>
		* <li>{@link Log#DEBUG}</li>
		* <li>{@link Log#VERBOSE}</li>
		* </ul>
		*/
		@Log.Level
		public final int priority;

		/**
		* Description of the recorded event.
		*/
		@NonNull
		public final String message;

		private LogMessage(long timestampMillis, int priority, String message) {
		this.timestampMillis = timestampMillis;
		if (priority < Log.VERBOSE \|\| priority > Log.ASSERT) {
		throw new IllegalArgumentException("invalid log priority " + priority);
		}
		this.priority = priority;
		this.message = message;
		}

		private char logPriorityChar() {
		switch (priority) {
		case Log.VERBOSE:
		return 'V';
		case Log.DEBUG:
		return 'D';
		case Log.INFO:
		return 'I';
		case Log.WARN:
		return 'W';
		case Log.ERROR:
		return 'E';
		case Log.ASSERT:
		return 'F';
		default:
		}
		return 'U';
		}

		@Override
		public String toString() {
		return String.format("LogMessage{%s %c %s}",
		Instant.ofEpochMilli(timestampMillis), logPriorityChar(), message);
		}
		}
		}

media/jni/Android.bp

+1 −0

Original line number	Diff line number	Diff line
		@@ -64,6 +64,7 @@ cc_library_shared {
		"android.hardware.cas@1.0",
		"android.hardware.cas.native@1.0",
		"android.hardware.drm@1.3",
		"android.hardware.drm@1.4",
		"android.hidl.memory@1.0",
		"android.hidl.token@1.0-utils",
		],

media/jni/android_media_MediaDrm.cpp

+43 −0

Original line number	Diff line number	Diff line
		@@ -37,6 +37,7 @@
		#include <mediadrm/DrmUtils.h>
		#include <mediadrm/IDrmMetricsConsumer.h>
		#include <mediadrm/IDrm.h>
		#include <utils/Vector.h>

		using ::android::os::PersistableBundle;
		namespace drm = ::android::hardware::drm;
		@@ -187,6 +188,11 @@ struct KeyStatusFields {
		jclass classId;
		};

		struct LogMessageFields {
		jmethodID init;
		jclass classId;
		};

		struct fields_t {
		jfieldID context;
		jmethodID post_event;
		@@ -208,6 +214,7 @@ struct fields_t {
		jmethodID createFromParcelId;
		jclass parcelCreatorClassId;
		KeyStatusFields keyStatus;
		LogMessageFields logMessage;
		};

		static fields_t gFields;
		@@ -224,6 +231,19 @@ jbyteArray hidlVectorToJByteArray(const hardware::hidl_vec<uint8_t> &vector) {
		return result;
		}

		jobject hidlLogMessagesToJavaList(JNIEnv *env, const Vector<drm::V1_4::LogMessage> &logs) {
		jclass clazz = gFields.arraylistClassId;
		jobject arrayList = env->NewObject(clazz, gFields.arraylist.init);
		clazz = gFields.logMessage.classId;
		for (auto log: logs) {
		jobject jLog = env->NewObject(clazz, gFields.logMessage.init,
		static_cast<jlong>(log.timeMs),
		static_cast<jint>(log.priority),
		env->NewStringUTF(log.message.c_str()));
		env->CallBooleanMethod(arrayList, gFields.arraylist.add, jLog);
		}
		return arrayList;
		}
		} // namespace anonymous

		// ----------------------------------------------------------------------------
		@@ -907,6 +927,10 @@ static void android_media_MediaDrm_native_init(JNIEnv *env) {
		FIND_CLASS(clazz, "android/media/MediaDrm$KeyStatus");
		gFields.keyStatus.classId = static_cast<jclass>(env->NewGlobalRef(clazz));
		GET_METHOD_ID(gFields.keyStatus.init, clazz, "<init>", "([BI)V");

		FIND_CLASS(clazz, "android/media/MediaDrm$LogMessage");
		gFields.logMessage.classId = static_cast<jclass>(env->NewGlobalRef(clazz));
		GET_METHOD_ID(gFields.logMessage.init, clazz, "<init>", "(JILjava/lang/String;)V");
		}

		static void android_media_MediaDrm_native_setup(
		@@ -1996,6 +2020,22 @@ static void android_media_MediaDrm_setPlaybackId(
		throwExceptionAsNecessary(env, err, "Failed to set playbackId");
		}

		static jobject android_media_MediaDrm_getLogMessages(
		JNIEnv *env, jobject thiz) {
		sp<IDrm> drm = GetDrm(env, thiz);
		if (!CheckDrm(env, drm)) {
		return NULL;
		}

		Vector<drm::V1_4::LogMessage> logs;
		status_t err = drm->getLogMessages(logs);
		ALOGI("drm->getLogMessages %zu logs", logs.size());
		if (throwExceptionAsNecessary(env, err, "Failed to get log messages")) {
		return NULL;
		}
		return hidlLogMessagesToJavaList(env, logs);
		}

		static const JNINativeMethod gMethods[] = {
		{ "native_release", "()V", (void *)android_media_MediaDrm_native_release },

		@@ -2123,6 +2163,9 @@ static const JNINativeMethod gMethods[] = {

		{ "setPlaybackId", "([BLjava/lang/String;)V",
		(void *)android_media_MediaDrm_setPlaybackId },

		{ "getLogMessages", "()Ljava/util/List;",
		(void *)android_media_MediaDrm_getLogMessages },
		};

		int register_android_media_Drm(JNIEnv *env) {