New API to set the video rendering mode on a MediaCodec instance. (b12a5390) · Commits · e / os / android_frameworks_base

api/current.txt

+3 −0

Original line number	Diff line number	Diff line
		@@ -11001,6 +11001,7 @@ package android.media {
		method public final void queueSecureInputBuffer(int, int, android.media.MediaCodec.CryptoInfo, long, int) throws android.media.MediaCodec.CryptoException;
		method public final void release();
		method public final void releaseOutputBuffer(int, boolean);
		method public final void setVideoScalingMode(int);
		method public final void start();
		method public final void stop();
		field public static int CONFIGURE_FLAG_ENCODE;
		@@ -11012,6 +11013,8 @@ package android.media {
		field public static final int INFO_TRY_AGAIN_LATER = -1; // 0xffffffff
		field public static final int MODE_AES_CTR = 1; // 0x1
		field public static final int MODE_UNENCRYPTED = 0; // 0x0
		field public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING = 2; // 0x2
		field public static final int VIDEO_SCALING_MODE_STRETCH_TO_FIT = 1; // 0x1
		}

		public static final class MediaCodec.BufferInfo {

media/java/android/media/MediaCodec.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -442,6 +442,19 @@ final public class MediaCodec {
		return getBuffers(false /* input */);
		}

		/** The content is scaled to the surface dimensions */
		public static final int VIDEO_SCALING_MODE_STRETCH_TO_FIT = 1;

		/** The content is scaled, maintaining its aspect ratio, the whole
		surface area is used, content may be cropped
		*/
		public static final int VIDEO_SCALING_MODE_SCALE_TO_FIT_WITH_CROPPING = 2;

		/** If a surface has been specified in a previous call to {@link #configure}
		specifies the scaling mode to use. The default is "stretch to fit".
		*/
		public native final void setVideoScalingMode(int mode);

		private native final ByteBuffer[] getBuffers(boolean input);

		private static native final void native_init();

media/jni/android_media_MediaCodec.cpp

+36 −2

Original line number	Diff line number	Diff line
		@@ -39,6 +39,8 @@
		#include <media/stagefright/foundation/AString.h>
		#include <media/stagefright/MediaErrors.h>

		#include <system/window.h>

		namespace android {

		// Keep these in sync with their equivalents in MediaCodec.java !!!
		@@ -111,9 +113,12 @@ status_t JMediaCodec::configure(
		int flags) {
		sp<SurfaceTextureClient> client;
		if (surfaceTexture != NULL) {
		client = new SurfaceTextureClient(surfaceTexture);
		mSurfaceTextureClient = new SurfaceTextureClient(surfaceTexture);
		} else {
		mSurfaceTextureClient.clear();
		}
		return mCodec->configure(format, client, crypto, flags);

		return mCodec->configure(format, mSurfaceTextureClient, crypto, flags);
		}

		status_t JMediaCodec::start() {
		@@ -121,6 +126,8 @@ status_t JMediaCodec::start() {
		}

		status_t JMediaCodec::stop() {
		mSurfaceTextureClient.clear();

		return mCodec->stop();
		}

		@@ -227,6 +234,12 @@ status_t JMediaCodec::getBuffers(
		return OK;
		}

		void JMediaCodec::setVideoScalingMode(int mode) {
		if (mSurfaceTextureClient != NULL) {
		native_window_set_scaling_mode(mSurfaceTextureClient.get(), mode);
		}
		}

		} // namespace android

		////////////////////////////////////////////////////////////////////////////////
		@@ -663,6 +676,24 @@ static jobjectArray android_media_MediaCodec_getBuffers(
		return NULL;
		}

		static void android_media_MediaCodec_setVideoScalingMode(
		JNIEnv *env, jobject thiz, jint mode) {
		sp<JMediaCodec> codec = getMediaCodec(env, thiz);

		if (codec == NULL) {
		jniThrowException(env, "java/lang/IllegalStateException", NULL);
		return;
		}

		if (mode != NATIVE_WINDOW_SCALING_MODE_SCALE_TO_WINDOW
		&& mode != NATIVE_WINDOW_SCALING_MODE_SCALE_CROP) {
		jniThrowException(env, "java/lang/InvalidArgumentException", NULL);
		return;
		}

		codec->setVideoScalingMode(mode);
		}

		static void android_media_MediaCodec_native_init(JNIEnv *env) {
		jclass clazz = env->FindClass("android/media/MediaCodec");
		CHECK(clazz != NULL);
		@@ -765,6 +796,9 @@ static JNINativeMethod gMethods[] = {
		{ "getBuffers", "(Z)[Ljava/nio/ByteBuffer;",
		(void *)android_media_MediaCodec_getBuffers },

		{ "setVideoScalingMode", "(I)V",
		(void *)android_media_MediaCodec_setVideoScalingMode },

		{ "native_init", "()V", (void *)android_media_MediaCodec_native_init },

		{ "native_setup", "(Ljava/lang/String;ZZ)V",

media/jni/android_media_MediaCodec.h

+4 −0

Original line number	Diff line number	Diff line
		@@ -32,6 +32,7 @@ struct AString;
		struct ICrypto;
		struct ISurfaceTexture;
		struct MediaCodec;
		struct SurfaceTextureClient;

		struct JMediaCodec : public RefBase {
		JMediaCodec(
		@@ -80,12 +81,15 @@ struct JMediaCodec : public RefBase {
		status_t getBuffers(
		JNIEnv env, bool input, jobjectArray bufArray) const;

		void setVideoScalingMode(int mode);

		protected:
		virtual ~JMediaCodec();

		private:
		jclass mClass;
		jweak mObject;
		sp<SurfaceTextureClient> mSurfaceTextureClient;

		sp<ALooper> mLooper;
		sp<MediaCodec> mCodec;