commit 226065bbe60cf32b33a5f86d27e2db88138e4486
author Andreas Huber <andih@google.com> Mon Aug 12 10:14:11 2013 -0700
committer Andreas Huber <andih@google.com> Mon Aug 12 10:14:11 2013 -0700
tree 0d1b092cc733361b9c8cfe892f5836244384e9bd
parent 8d5f3e31c914e29129f50fe9830d71adf52ab5cf

Expose MediaCodec.setParameters API to

- change video target bitrate on the fly
- request sync frames
- temporarily suspend feeding input buffers to the encoder

Change-Id: If5cf1162b2eeb28ac08288ecfa9f0e9823dd972e

media/jni/android_media_MediaCodec.cpp

diff --git a/media/jni/android_media_MediaCodec.cpp b/media/jni/android_media_MediaCodec.cpp
index ae1db87..a859506 100644
--- a/media/jni/android_media_MediaCodec.cpp
+++ b/media/jni/android_media_MediaCodec.cpp
@@ -310,6 +310,10 @@
     return OK;
 }
 
+status_t JMediaCodec::setParameters(const sp<AMessage> &msg) {
+    return mCodec->setParameters(msg);
+}
+
 void JMediaCodec::setVideoScalingMode(int mode) {
     if (mSurfaceTextureClient != NULL) {
         native_window_set_scaling_mode(mSurfaceTextureClient.get(), mode);
@@ -837,6 +841,27 @@
     return NULL;
 }
 
+static void android_media_MediaCodec_setParameters(
+        JNIEnv *env, jobject thiz, jobjectArray keys, jobjectArray vals) {
+    ALOGV("android_media_MediaCodec_setParameters");
+
+    sp<JMediaCodec> codec = getMediaCodec(env, thiz);
+
+    if (codec == NULL) {
+        jniThrowException(env, "java/lang/IllegalStateException", NULL);
+        return;
+    }
+
+    sp<AMessage> params;
+    status_t err = ConvertKeyValueArraysToMessage(env, keys, vals, &params);
+
+    if (err == OK) {
+        err = codec->setParameters(params);
+    }
+
+    throwExceptionAsNecessary(env, err);
+}
+
 static void android_media_MediaCodec_setVideoScalingMode(
         JNIEnv *env, jobject thiz, jint mode) {
     sp<JMediaCodec> codec = getMediaCodec(env, thiz);
@@ -986,6 +1011,9 @@
     { "getName", "()Ljava/lang/String;",
       (void *)android_media_MediaCodec_getName },
 
+    { "setParameters", "([Ljava/lang/String;[Ljava/lang/Object;)V",
+      (void *)android_media_MediaCodec_setParameters },
+
     { "setVideoScalingMode", "(I)V",
       (void *)android_media_MediaCodec_setVideoScalingMode },
 

media/jni/android_media_MediaCodec.h

diff --git a/media/jni/android_media_MediaCodec.h b/media/jni/android_media_MediaCodec.h
index 282d2c5..2fbbd72 100644
--- a/media/jni/android_media_MediaCodec.h
+++ b/media/jni/android_media_MediaCodec.h
@@ -87,6 +87,8 @@
 
     status_t getName(JNIEnv *env, jstring *name) const;
 
+    status_t setParameters(const sp<AMessage> &params);
+
     void setVideoScalingMode(int mode);
 
 protected: