1 /* 2 * Copyright 2012, The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 //#define LOG_NDEBUG 0 18 #define LOG_TAG "MediaCodec-JNI" 19 #include <utils/Log.h> 20 21 #include <media/stagefright/foundation/ADebug.h> 22 #include <media/stagefright/foundation/AMessage.h> 23 #include <media/stagefright/MediaCodecList.h> 24 #include <media/IMediaCodecList.h> 25 #include <media/MediaCodecInfo.h> 26 27 #include "android_runtime/AndroidRuntime.h" 28 #include "jni.h" 29 #include <nativehelper/JNIHelp.h> 30 #include "android_media_Utils.h" 31 32 using namespace android; 33 34 static sp<IMediaCodecList> getCodecList(JNIEnv *env) { 35 sp<IMediaCodecList> mcl = MediaCodecList::getInstance(); 36 if (mcl == NULL) { 37 // This should never happen unless something is really wrong 38 jniThrowException( 39 env, "java/lang/RuntimeException", "cannot get MediaCodecList"); 40 } 41 return mcl; 42 } 43 44 static jint android_media_MediaCodecList_getCodecCount( 45 JNIEnv *env, jobject /* thiz */) { 46 sp<IMediaCodecList> mcl = getCodecList(env); 47 if (mcl == NULL) { 48 // Runtime exception already pending. 49 return 0; 50 } 51 return mcl->countCodecs(); 52 } 53 54 static jstring android_media_MediaCodecList_getCodecName( 55 JNIEnv *env, jobject /* thiz */, jint index) { 56 sp<IMediaCodecList> mcl = getCodecList(env); 57 if (mcl == NULL) { 58 // Runtime exception already pending. 59 return NULL; 60 } 61 62 const sp<MediaCodecInfo> &info = mcl->getCodecInfo(index); 63 if (info == NULL) { 64 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 65 return NULL; 66 } 67 68 const char *name = info->getCodecName(); 69 return env->NewStringUTF(name); 70 } 71 72 static jint android_media_MediaCodecList_findCodecByName( 73 JNIEnv *env, jobject /* thiz */, jstring name) { 74 if (name == NULL) { 75 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 76 return -ENOENT; 77 } 78 79 const char *nameStr = env->GetStringUTFChars(name, NULL); 80 if (nameStr == NULL) { 81 // Out of memory exception already pending. 82 return -ENOENT; 83 } 84 85 sp<IMediaCodecList> mcl = getCodecList(env); 86 if (mcl == NULL) { 87 // Runtime exception already pending. 88 env->ReleaseStringUTFChars(name, nameStr); 89 return -ENOENT; 90 } 91 92 jint ret = mcl->findCodecByName(nameStr); 93 env->ReleaseStringUTFChars(name, nameStr); 94 return ret; 95 } 96 97 static jboolean android_media_MediaCodecList_isEncoder( 98 JNIEnv *env, jobject /* thiz */, jint index) { 99 sp<IMediaCodecList> mcl = getCodecList(env); 100 if (mcl == NULL) { 101 // Runtime exception already pending. 102 return false; 103 } 104 105 const sp<MediaCodecInfo> &info = mcl->getCodecInfo(index); 106 if (info == NULL) { 107 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 108 return false; 109 } 110 111 return info->isEncoder(); 112 } 113 114 static jarray android_media_MediaCodecList_getSupportedTypes( 115 JNIEnv *env, jobject /* thiz */, jint index) { 116 sp<IMediaCodecList> mcl = getCodecList(env); 117 if (mcl == NULL) { 118 // Runtime exception already pending. 119 return NULL; 120 } 121 122 const sp<MediaCodecInfo> &info = mcl->getCodecInfo(index); 123 if (info == NULL) { 124 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 125 return NULL; 126 } 127 128 Vector<AString> types; 129 info->getSupportedMimes(&types); 130 131 jclass clazz = env->FindClass("java/lang/String"); 132 CHECK(clazz != NULL); 133 134 jobjectArray array = env->NewObjectArray(types.size(), clazz, NULL); 135 136 for (size_t i = 0; i < types.size(); ++i) { 137 jstring obj = env->NewStringUTF(types.itemAt(i).c_str()); 138 env->SetObjectArrayElement(array, i, obj); 139 env->DeleteLocalRef(obj); 140 obj = NULL; 141 } 142 143 return array; 144 } 145 146 static jobject android_media_MediaCodecList_getCodecCapabilities( 147 JNIEnv *env, jobject /* thiz */, jint index, jstring type) { 148 if (type == NULL) { 149 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 150 return NULL; 151 } 152 153 sp<IMediaCodecList> mcl = getCodecList(env); 154 if (mcl == NULL) { 155 // Runtime exception already pending. 156 return NULL; 157 } 158 159 const sp<MediaCodecInfo> &info = mcl->getCodecInfo(index); 160 if (info == NULL) { 161 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 162 return NULL; 163 } 164 165 const char *typeStr = env->GetStringUTFChars(type, NULL); 166 if (typeStr == NULL) { 167 // Out of memory exception already pending. 168 return NULL; 169 } 170 171 Vector<MediaCodecInfo::ProfileLevel> profileLevels; 172 Vector<uint32_t> colorFormats; 173 174 sp<AMessage> defaultFormat = new AMessage(); 175 defaultFormat->setString("mime", typeStr); 176 177 // TODO query default-format also from codec/codec list 178 const sp<MediaCodecInfo::Capabilities> &capabilities = 179 info->getCapabilitiesFor(typeStr); 180 env->ReleaseStringUTFChars(type, typeStr); 181 typeStr = NULL; 182 if (capabilities == NULL) { 183 jniThrowException(env, "java/lang/IllegalArgumentException", NULL); 184 return NULL; 185 } 186 187 capabilities->getSupportedColorFormats(&colorFormats); 188 capabilities->getSupportedProfileLevels(&profileLevels); 189 uint32_t flags = capabilities->getFlags(); 190 sp<AMessage> details = capabilities->getDetails(); 191 bool isEncoder = info->isEncoder(); 192 193 jobject defaultFormatObj = NULL; 194 if (ConvertMessageToMap(env, defaultFormat, &defaultFormatObj)) { 195 return NULL; 196 } 197 198 jobject infoObj = NULL; 199 if (ConvertMessageToMap(env, details, &infoObj)) { 200 env->DeleteLocalRef(defaultFormatObj); 201 return NULL; 202 } 203 204 jclass capsClazz = 205 env->FindClass("android/media/MediaCodecInfo$CodecCapabilities"); 206 CHECK(capsClazz != NULL); 207 208 jclass profileLevelClazz = 209 env->FindClass("android/media/MediaCodecInfo$CodecProfileLevel"); 210 CHECK(profileLevelClazz != NULL); 211 212 jobjectArray profileLevelArray = 213 env->NewObjectArray(profileLevels.size(), profileLevelClazz, NULL); 214 215 jfieldID profileField = 216 env->GetFieldID(profileLevelClazz, "profile", "I"); 217 218 jfieldID levelField = 219 env->GetFieldID(profileLevelClazz, "level", "I"); 220 221 for (size_t i = 0; i < profileLevels.size(); ++i) { 222 const MediaCodecInfo::ProfileLevel &src = profileLevels.itemAt(i); 223 224 jobject profileLevelObj = env->AllocObject(profileLevelClazz); 225 226 env->SetIntField(profileLevelObj, profileField, src.mProfile); 227 env->SetIntField(profileLevelObj, levelField, src.mLevel); 228 229 env->SetObjectArrayElement(profileLevelArray, i, profileLevelObj); 230 231 env->DeleteLocalRef(profileLevelObj); 232 profileLevelObj = NULL; 233 } 234 235 jintArray colorFormatsArray = env->NewIntArray(colorFormats.size()); 236 237 for (size_t i = 0; i < colorFormats.size(); ++i) { 238 jint val = colorFormats.itemAt(i); 239 env->SetIntArrayRegion(colorFormatsArray, i, 1, &val); 240 } 241 242 jmethodID capsConstructID = env->GetMethodID(capsClazz, "<init>", 243 "([Landroid/media/MediaCodecInfo$CodecProfileLevel;[IZI" 244 "Ljava/util/Map;Ljava/util/Map;)V"); 245 246 jobject caps = env->NewObject(capsClazz, capsConstructID, 247 profileLevelArray, colorFormatsArray, isEncoder, flags, 248 defaultFormatObj, infoObj); 249 250 env->DeleteLocalRef(profileLevelArray); 251 profileLevelArray = NULL; 252 253 env->DeleteLocalRef(colorFormatsArray); 254 colorFormatsArray = NULL; 255 256 env->DeleteLocalRef(defaultFormatObj); 257 defaultFormatObj = NULL; 258 259 env->DeleteLocalRef(infoObj); 260 infoObj = NULL; 261 262 return caps; 263 } 264 265 static jobject android_media_MediaCodecList_getGlobalSettings(JNIEnv *env, jobject /* thiz */) { 266 sp<IMediaCodecList> mcl = getCodecList(env); 267 if (mcl == NULL) { 268 // Runtime exception already pending. 269 return NULL; 270 } 271 272 const sp<AMessage> settings = mcl->getGlobalSettings(); 273 if (settings == NULL) { 274 jniThrowException(env, "java/lang/RuntimeException", "cannot get global settings"); 275 return NULL; 276 } 277 278 jobject settingsObj = NULL; 279 if (ConvertMessageToMap(env, settings, &settingsObj)) { 280 return NULL; 281 } 282 283 return settingsObj; 284 } 285 286 static void android_media_MediaCodecList_native_init(JNIEnv* /* env */) { 287 } 288 289 static const JNINativeMethod gMethods[] = { 290 { "native_getCodecCount", "()I", (void *)android_media_MediaCodecList_getCodecCount }, 291 { "getCodecName", "(I)Ljava/lang/String;", 292 (void *)android_media_MediaCodecList_getCodecName }, 293 { "isEncoder", "(I)Z", (void *)android_media_MediaCodecList_isEncoder }, 294 { "getSupportedTypes", "(I)[Ljava/lang/String;", 295 (void *)android_media_MediaCodecList_getSupportedTypes }, 296 297 { "getCodecCapabilities", 298 "(ILjava/lang/String;)Landroid/media/MediaCodecInfo$CodecCapabilities;", 299 (void *)android_media_MediaCodecList_getCodecCapabilities }, 300 301 { "native_getGlobalSettings", 302 "()Ljava/util/Map;", 303 (void *)android_media_MediaCodecList_getGlobalSettings }, 304 305 { "findCodecByName", "(Ljava/lang/String;)I", 306 (void *)android_media_MediaCodecList_findCodecByName }, 307 308 { "native_init", "()V", (void *)android_media_MediaCodecList_native_init }, 309 }; 310 311 int register_android_media_MediaCodecList(JNIEnv *env) { 312 return AndroidRuntime::registerNativeMethods(env, 313 "android/media/MediaCodecList", gMethods, NELEM(gMethods)); 314 } 315 316
