New API to query available codecs and their capabilities.
Change-Id: I448ba443a96d8fee2bc9179750d57362ed31d9d9
diff --git a/media/jni/android_media_MediaCodecList.cpp b/media/jni/android_media_MediaCodecList.cpp
new file mode 100644
index 0000000..2b8f91e
--- /dev/null
+++ b/media/jni/android_media_MediaCodecList.cpp
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2012, The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+//#define LOG_NDEBUG 0
+#define LOG_TAG "MediaCodec-JNI"
+#include <utils/Log.h>
+
+#include <media/stagefright/foundation/ADebug.h>
+#include <media/stagefright/MediaCodecList.h>
+
+#include "android_runtime/AndroidRuntime.h"
+#include "jni.h"
+#include "JNIHelp.h"
+
+using namespace android;
+
+static jint android_media_MediaCodecList_countCodecs(
+ JNIEnv *env, jobject thiz) {
+ return MediaCodecList::getInstance()->countCodecs();
+}
+
+static jstring android_media_MediaCodecList_getCodecName(
+ JNIEnv *env, jobject thiz, jint index) {
+ const char *name = MediaCodecList::getInstance()->getCodecName(index);
+
+ if (name == NULL) {
+ jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+ return NULL;
+ }
+
+ return env->NewStringUTF(name);
+}
+
+static jboolean android_media_MediaCodecList_isEncoder(
+ JNIEnv *env, jobject thiz, jint index) {
+ return MediaCodecList::getInstance()->isEncoder(index);
+}
+
+static jarray android_media_MediaCodecList_getSupportedTypes(
+ JNIEnv *env, jobject thiz, jint index) {
+ Vector<AString> types;
+ status_t err =
+ MediaCodecList::getInstance()->getSupportedTypes(index, &types);
+
+ if (err != OK) {
+ jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+ return NULL;
+ }
+
+ jclass clazz = env->FindClass("java/lang/String");
+ CHECK(clazz != NULL);
+
+ jobjectArray array = env->NewObjectArray(types.size(), clazz, NULL);
+
+ for (size_t i = 0; i < types.size(); ++i) {
+ jstring obj = env->NewStringUTF(types.itemAt(i).c_str());
+ env->SetObjectArrayElement(array, i, obj);
+ env->DeleteLocalRef(obj);
+ obj = NULL;
+ }
+
+ return array;
+}
+
+static jobject android_media_MediaCodecList_getCodecCapabilities(
+ JNIEnv *env, jobject thiz, jint index, jstring type) {
+ if (type == NULL) {
+ jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+ return NULL;
+ }
+
+ const char *typeStr = env->GetStringUTFChars(type, NULL);
+
+ if (typeStr == NULL) {
+ // Out of memory exception already pending.
+ return NULL;
+ }
+
+ Vector<MediaCodecList::ProfileLevel> profileLevels;
+ Vector<uint32_t> colorFormats;
+
+ status_t err =
+ MediaCodecList::getInstance()->getCodecCapabilities(
+ index, typeStr, &profileLevels, &colorFormats);
+
+ env->ReleaseStringUTFChars(type, typeStr);
+ typeStr = NULL;
+
+ if (err != OK) {
+ jniThrowException(env, "java/lang/IllegalArgumentException", NULL);
+ return NULL;
+ }
+
+ jclass capsClazz =
+ env->FindClass("android/media/MediaCodecList$CodecCapabilities");
+ CHECK(capsClazz != NULL);
+
+ jobject caps = env->AllocObject(capsClazz);
+
+ jclass profileLevelClazz =
+ env->FindClass("android/media/MediaCodecList$CodecProfileLevel");
+ CHECK(profileLevelClazz != NULL);
+
+ jobjectArray profileLevelArray =
+ env->NewObjectArray(profileLevels.size(), profileLevelClazz, NULL);
+
+ jfieldID profileField =
+ env->GetFieldID(profileLevelClazz, "mProfile", "I");
+
+ jfieldID levelField =
+ env->GetFieldID(profileLevelClazz, "mLevel", "I");
+
+ for (size_t i = 0; i < profileLevels.size(); ++i) {
+ const MediaCodecList::ProfileLevel &src = profileLevels.itemAt(i);
+
+ jobject profileLevelObj = env->AllocObject(profileLevelClazz);
+
+ env->SetIntField(profileLevelObj, profileField, src.mProfile);
+ env->SetIntField(profileLevelObj, levelField, src.mLevel);
+
+ env->SetObjectArrayElement(profileLevelArray, i, profileLevelObj);
+
+ env->DeleteLocalRef(profileLevelObj);
+ profileLevelObj = NULL;
+ }
+
+ jfieldID profileLevelsField = env->GetFieldID(
+ capsClazz,
+ "mProfileLevels",
+ "[Landroid/media/MediaCodecList$CodecProfileLevel;");
+
+ env->SetObjectField(caps, profileLevelsField, profileLevelArray);
+
+ env->DeleteLocalRef(profileLevelArray);
+ profileLevelArray = NULL;
+
+ jintArray colorFormatsArray = env->NewIntArray(colorFormats.size());
+
+ for (size_t i = 0; i < colorFormats.size(); ++i) {
+ jint val = colorFormats.itemAt(i);
+ env->SetIntArrayRegion(colorFormatsArray, i, 1, &val);
+ }
+
+ jfieldID colorFormatsField = env->GetFieldID(
+ capsClazz, "mColorFormats", "[I");
+
+ env->SetObjectField(caps, colorFormatsField, colorFormatsArray);
+
+ env->DeleteLocalRef(colorFormatsArray);
+ colorFormatsArray = NULL;
+
+ return caps;
+}
+
+static void android_media_MediaCodecList_native_init(JNIEnv *env) {
+}
+
+static JNINativeMethod gMethods[] = {
+ { "countCodecs", "()I", (void *)android_media_MediaCodecList_countCodecs },
+ { "getCodecName", "(I)Ljava/lang/String;",
+ (void *)android_media_MediaCodecList_getCodecName },
+ { "isEncoder", "(I)Z", (void *)android_media_MediaCodecList_isEncoder },
+ { "getSupportedTypes", "(I)[Ljava/lang/String;",
+ (void *)android_media_MediaCodecList_getSupportedTypes },
+
+ { "getCodecCapabilities",
+ "(ILjava/lang/String;)Landroid/media/MediaCodecList$CodecCapabilities;",
+ (void *)android_media_MediaCodecList_getCodecCapabilities },
+
+ { "native_init", "()V", (void *)android_media_MediaCodecList_native_init },
+};
+
+int register_android_media_MediaCodecList(JNIEnv *env) {
+ return AndroidRuntime::registerNativeMethods(env,
+ "android/media/MediaCodecList", gMethods, NELEM(gMethods));
+}
+