Gapless playback, step 1. (84b83205) · Commits · e / os / android_frameworks_base

include/media/IMediaPlayer.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -64,6 +64,7 @@ public:
		virtual status_t setParameter(int key, const Parcel& request) = 0;
		virtual status_t getParameter(int key, Parcel* reply) = 0;
		virtual status_t setRetransmitEndpoint(const struct sockaddr_in* endpoint) = 0;
		virtual status_t setNextPlayer(const sp<IMediaPlayer>& next) = 0;

		// Invoke a generic method on the player by using opaque parcels
		// for the request and reply.

include/media/MediaPlayerInterface.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -107,6 +107,7 @@ public:
		virtual void close() = 0;

		virtual status_t setPlaybackRatePermille(int32_t rate) { return INVALID_OPERATION; }
		virtual bool needsTrailingPadding() { return true; }
		};

		MediaPlayerBase() : mCookie(0), mNotify(0) {}

include/media/mediaplayer.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -96,6 +96,9 @@ enum media_error_type {
		enum media_info_type {
		// 0xx
		MEDIA_INFO_UNKNOWN = 1,
		// The player was started because it was used as the next player for another
		// player, which just completed playback
		MEDIA_INFO_STARTED_AS_NEXT = 2,
		// 7xx
		// The video is too complex for the decoder: it can't decode frames fast
		// enough. Possibly only the audio plays fine at this stage.
		@@ -207,6 +210,7 @@ public:
		status_t setParameter(int key, const Parcel& request);
		status_t getParameter(int key, Parcel* reply);
		status_t setRetransmitEndpoint(const char* addrString, uint16_t port);
		status_t setNextMediaPlayer(const sp<MediaPlayer>& player);

		private:
		void clear_l();

media/java/android/media/MediaPlayer.java

+31 −0

Original line number	Diff line number	Diff line
		@@ -1147,6 +1147,26 @@ public class MediaPlayer
		return native_setMetadataFilter(request);
		}

		/**
		* Set the MediaPlayer to start when this MediaPlayer finishes playback
		* (i.e. reaches the end of the stream).
		* The media framework will attempt to transition from this player to
		* the next as seamlessly as possible. The next player can be set at
		* any time before completion. The next player must be prepared by the
		* app, and the application should not call start() on it.
		* The next MediaPlayer must be different from 'this'. An exception
		* will be thrown if next == this.
		* The application may call setNextMediaPlayer(null) to indicate no
		* next player should be started at the end of playback.
		* If the current player is looping, it will keep looping and the next
		* player will not be started.
		*
		* @param next the player to start after this one completes playback.
		*
		* @hide
		*/
		public native void setNextMediaPlayer(MediaPlayer next);

		/**
		* Releases resources associated with this MediaPlayer object.
		* It is considered good practice to call this method when you're
		@@ -1652,6 +1672,10 @@ public class MediaPlayer
		return;
		}

		if (what == MEDIA_INFO && arg1 == MEDIA_INFO_STARTED_AS_NEXT) {
		// this acquires the wakelock if needed, and sets the client side state
		mp.start();
		}
		if (mp.mEventHandler != null) {
		Message m = mp.mEventHandler.obtainMessage(what, arg1, arg2, obj);
		mp.mEventHandler.sendMessage(m);
		@@ -1906,6 +1930,13 @@ public class MediaPlayer
		*/
		public static final int MEDIA_INFO_UNKNOWN = 1;

		/** The player was started because it was used as the next player for another
		* player, which just completed playback.
		* @see android.media.MediaPlayer.OnInfoListener
		* @hide
		*/
		public static final int MEDIA_INFO_STARTED_AS_NEXT = 2;

		/** The video is too complex for the decoder: it can't decode frames fast
		* enough. Possibly only the audio plays fine at this stage.
		* @see android.media.MediaPlayer.OnInfoListener

media/jni/android_media_MediaPlayer.cpp

+28 −0

Original line number	Diff line number	Diff line
		@@ -795,6 +795,33 @@ android_media_MediaPlayer_getParameter(JNIEnv *env, jobject thiz, jint key, jobj
		process_media_player_call(env, thiz, mp->getParameter(key, reply), NULL, NULL );
		}

		static void
		android_media_MediaPlayer_setNextMediaPlayer(JNIEnv *env, jobject thiz, jobject java_player)
		{
		ALOGV("setNextMediaPlayer");
		sp<MediaPlayer> thisplayer = getMediaPlayer(env, thiz);
		if (thisplayer == NULL) {
		jniThrowException(env, "java/lang/IllegalStateException", "This player not initialized");
		return;
		}
		sp<MediaPlayer> nextplayer = (java_player == NULL) ? NULL : getMediaPlayer(env, java_player);
		if (nextplayer == NULL && java_player != NULL) {
		jniThrowException(env, "java/lang/IllegalStateException", "That player not initialized");
		return;
		}

		if (nextplayer == thisplayer) {
		jniThrowException(env, "java/lang/IllegalArgumentException", "Next player can't be self");
		return;
		}
		// tie the two players together
		process_media_player_call(
		env, thiz, thisplayer->setNextMediaPlayer(nextplayer),
		"java/lang/IllegalArgumentException",
		"setNextMediaPlayer failed." );
		;
		}

		// ----------------------------------------------------------------------------

		static JNINativeMethod gMethods[] = {
		@@ -840,6 +867,7 @@ static JNINativeMethod gMethods[] = {
		{"setParameter", "(ILandroid/os/Parcel;)Z", (void *)android_media_MediaPlayer_setParameter},
		{"getParameter", "(ILandroid/os/Parcel;)V", (void *)android_media_MediaPlayer_getParameter},
		{"native_setRetransmitEndpoint", "(Ljava/lang/String;I)I", (void *)android_media_MediaPlayer_setRetransmitEndpoint},
		{"setNextMediaPlayer", "(Landroid/media/MediaPlayer;)V", (void *)android_media_MediaPlayer_setNextMediaPlayer},
		};

		static const char* const kClassPathName = "android/media/MediaPlayer";