diff options
Diffstat (limited to 'media/jni/android_media_MediaScanner.cpp')
| -rw-r--r-- | media/jni/android_media_MediaScanner.cpp | 258 |
1 files changed, 169 insertions, 89 deletions
diff --git a/media/jni/android_media_MediaScanner.cpp b/media/jni/android_media_MediaScanner.cpp index a5176fa..8bbb997 100644 --- a/media/jni/android_media_MediaScanner.cpp +++ b/media/jni/android_media_MediaScanner.cpp @@ -1,4 +1,4 @@ -/* //device/libs/media_jni/MediaScanner.cpp +/* ** ** Copyright 2007, The Android Open Source Project ** @@ -15,36 +15,36 @@ ** limitations under the License. */ -#define LOG_TAG "MediaScanner" -#include "utils/Log.h" - -#include <media/mediascanner.h> -#include <stdio.h> -#include <assert.h> -#include <limits.h> -#include <unistd.h> -#include <fcntl.h> -#include <cutils/properties.h> +//#define LOG_NDEBUG 0 +#define LOG_TAG "MediaScannerJNI" +#include <utils/Log.h> #include <utils/threads.h> +#include <media/mediascanner.h> +#include <media/stagefright/StagefrightMediaScanner.h> #include "jni.h" #include "JNIHelp.h" #include "android_runtime/AndroidRuntime.h" -#include <media/stagefright/StagefrightMediaScanner.h> - -// ---------------------------------------------------------------------------- - using namespace android; -// ---------------------------------------------------------------------------- struct fields_t { jfieldID context; }; static fields_t fields; -// ---------------------------------------------------------------------------- +static const char* const kClassMediaScannerClient = + "android/media/MediaScannerClient"; + +static const char* const kClassMediaScanner = + "android/media/MediaScanner"; + +static const char* const kRunTimeException = + "java/lang/RuntimeException"; + +static const char* const kIllegalArgumentException = + "java/lang/IllegalArgumentException"; class MyMediaScannerClient : public MediaScannerClient { @@ -56,33 +56,53 @@ public: mHandleStringTagMethodID(0), mSetMimeTypeMethodID(0) { - jclass mediaScannerClientInterface = env->FindClass("android/media/MediaScannerClient"); + LOGV("MyMediaScannerClient constructor"); + jclass mediaScannerClientInterface = + env->FindClass(kClassMediaScannerClient); + if (mediaScannerClientInterface == NULL) { - fprintf(stderr, "android/media/MediaScannerClient not found\n"); - } - else { - mScanFileMethodID = env->GetMethodID(mediaScannerClientInterface, "scanFile", - "(Ljava/lang/String;JJZ)V"); - mHandleStringTagMethodID = env->GetMethodID(mediaScannerClientInterface, "handleStringTag", - "(Ljava/lang/String;Ljava/lang/String;)V"); - mSetMimeTypeMethodID = env->GetMethodID(mediaScannerClientInterface, "setMimeType", - "(Ljava/lang/String;)V"); - mAddNoMediaFolderMethodID = env->GetMethodID(mediaScannerClientInterface, "addNoMediaFolder", - "(Ljava/lang/String;)V"); + LOGE("Class %s not found", kClassMediaScannerClient); + } else { + mScanFileMethodID = env->GetMethodID( + mediaScannerClientInterface, + "scanFile", + "(Ljava/lang/String;JJZ)V"); + + mHandleStringTagMethodID = env->GetMethodID( + mediaScannerClientInterface, + "handleStringTag", + "(Ljava/lang/String;Ljava/lang/String;)V"); + + mSetMimeTypeMethodID = env->GetMethodID( + mediaScannerClientInterface, + "setMimeType", + "(Ljava/lang/String;)V"); + + mAddNoMediaFolderMethodID = env->GetMethodID( + mediaScannerClientInterface, + "addNoMediaFolder", + "(Ljava/lang/String;)V"); } } - + virtual ~MyMediaScannerClient() { + LOGV("MyMediaScannerClient destructor"); mEnv->DeleteGlobalRef(mClient); } - - // returns true if it succeeded, false if an exception occured in the Java code + + // Returns true if it succeeded, false if an exception occured + // in the Java code virtual bool scanFile(const char* path, long long lastModified, long long fileSize, bool isDirectory) { + LOGV("scanFile: path(%s), time(%lld), size(%lld) and isDir(%d)", + path, lastModified, fileSize, isDirectory); + jstring pathStr; - if ((pathStr = mEnv->NewStringUTF(path)) == NULL) return false; + if ((pathStr = mEnv->NewStringUTF(path)) == NULL) { + return false; + } mEnv->CallVoidMethod(mClient, mScanFileMethodID, pathStr, lastModified, fileSize, isDirectory); @@ -91,25 +111,36 @@ public: return (!mEnv->ExceptionCheck()); } - // returns true if it succeeded, false if an exception occured in the Java code + // Returns true if it succeeded, false if an exception occured + // in the Java code virtual bool handleStringTag(const char* name, const char* value) { + LOGV("handleStringTag: name(%s) and value(%s)", name, value); jstring nameStr, valueStr; - if ((nameStr = mEnv->NewStringUTF(name)) == NULL) return false; - if ((valueStr = mEnv->NewStringUTF(value)) == NULL) return false; + if ((nameStr = mEnv->NewStringUTF(name)) == NULL) { + return false; + } + if ((valueStr = mEnv->NewStringUTF(value)) == NULL) { + return false; + } - mEnv->CallVoidMethod(mClient, mHandleStringTagMethodID, nameStr, valueStr); + mEnv->CallVoidMethod( + mClient, mHandleStringTagMethodID, nameStr, valueStr); mEnv->DeleteLocalRef(nameStr); mEnv->DeleteLocalRef(valueStr); return (!mEnv->ExceptionCheck()); } - // returns true if it succeeded, false if an exception occured in the Java code + // Returns true if it succeeded, false if an exception occured + // in the Java code virtual bool setMimeType(const char* mimeType) { + LOGV("setMimeType: %s", mimeType); jstring mimeTypeStr; - if ((mimeTypeStr = mEnv->NewStringUTF(mimeType)) == NULL) return false; + if ((mimeTypeStr = mEnv->NewStringUTF(mimeType)) == NULL) { + return false; + } mEnv->CallVoidMethod(mClient, mSetMimeTypeMethodID, mimeTypeStr); @@ -117,11 +148,15 @@ public: return (!mEnv->ExceptionCheck()); } - // returns true if it succeeded, false if an exception occured in the Java code + // Returns true if it succeeded, false if an exception occured + // in the Java code virtual bool addNoMediaFolder(const char* path) { + LOGV("addNoMediaFolder: path(%s)", path); jstring pathStr; - if ((pathStr = mEnv->NewStringUTF(path)) == NULL) return false; + if ((pathStr = mEnv->NewStringUTF(path)) == NULL) { + return false; + } mEnv->CallVoidMethod(mClient, mAddNoMediaFolderMethodID, pathStr); @@ -133,33 +168,35 @@ public: private: JNIEnv *mEnv; jobject mClient; - jmethodID mScanFileMethodID; - jmethodID mHandleStringTagMethodID; + jmethodID mScanFileMethodID; + jmethodID mHandleStringTagMethodID; jmethodID mSetMimeTypeMethodID; jmethodID mAddNoMediaFolderMethodID; }; -// ---------------------------------------------------------------------------- - static bool ExceptionCheck(void* env) { + LOGV("ExceptionCheck"); return ((JNIEnv *)env)->ExceptionCheck(); } static void -android_media_MediaScanner_processDirectory(JNIEnv *env, jobject thiz, jstring path, jobject client) +android_media_MediaScanner_processDirectory( + JNIEnv *env, jobject thiz, jstring path, jobject client) { - MediaScanner *mp = (MediaScanner *)env->GetIntField(thiz, fields.context); + LOGV("processDirectory"); + MediaScanner *mp = + (MediaScanner *)env->GetIntField(thiz, fields.context); if (path == NULL) { - jniThrowException(env, "java/lang/IllegalArgumentException", NULL); + jniThrowException(env, kIllegalArgumentException, NULL); return; } const char *pathStr = env->GetStringUTFChars(path, NULL); if (pathStr == NULL) { // Out of memory - jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); + jniThrowException(env, kRunTimeException, "Out of memory"); return; } @@ -169,24 +206,30 @@ android_media_MediaScanner_processDirectory(JNIEnv *env, jobject thiz, jstring p } static void -android_media_MediaScanner_processFile(JNIEnv *env, jobject thiz, jstring path, jstring mimeType, jobject client) +android_media_MediaScanner_processFile( + JNIEnv *env, jobject thiz, jstring path, + jstring mimeType, jobject client) { - MediaScanner *mp = (MediaScanner *)env->GetIntField(thiz, fields.context); + LOGV("processFile"); + MediaScanner *mp = + (MediaScanner *)env->GetIntField(thiz, fields.context); if (path == NULL) { - jniThrowException(env, "java/lang/IllegalArgumentException", NULL); + jniThrowException(env, kIllegalArgumentException, NULL); return; } - + const char *pathStr = env->GetStringUTFChars(path, NULL); if (pathStr == NULL) { // Out of memory - jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); + jniThrowException(env, kRunTimeException, "Out of memory"); return; } - const char *mimeTypeStr = (mimeType ? env->GetStringUTFChars(mimeType, NULL) : NULL); + + const char *mimeTypeStr = + (mimeType ? env->GetStringUTFChars(mimeType, NULL) : NULL); if (mimeType && mimeTypeStr == NULL) { // Out of memory env->ReleaseStringUTFChars(path, pathStr); - jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); + jniThrowException(env, kRunTimeException, "Out of memory"); return; } @@ -199,17 +242,20 @@ android_media_MediaScanner_processFile(JNIEnv *env, jobject thiz, jstring path, } static void -android_media_MediaScanner_setLocale(JNIEnv *env, jobject thiz, jstring locale) +android_media_MediaScanner_setLocale( + JNIEnv *env, jobject thiz, jstring locale) { - MediaScanner *mp = (MediaScanner *)env->GetIntField(thiz, fields.context); + LOGV("setLocale"); + MediaScanner *mp = + (MediaScanner *)env->GetIntField(thiz, fields.context); if (locale == NULL) { - jniThrowException(env, "java/lang/IllegalArgumentException", NULL); + jniThrowException(env, kIllegalArgumentException, NULL); return; } const char *localeStr = env->GetStringUTFChars(locale, NULL); if (localeStr == NULL) { // Out of memory - jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); + jniThrowException(env, kRunTimeException, "Out of memory"); return; } mp->setLocale(localeStr); @@ -218,12 +264,15 @@ android_media_MediaScanner_setLocale(JNIEnv *env, jobject thiz, jstring locale) } static jbyteArray -android_media_MediaScanner_extractAlbumArt(JNIEnv *env, jobject thiz, jobject fileDescriptor) +android_media_MediaScanner_extractAlbumArt( + JNIEnv *env, jobject thiz, jobject fileDescriptor) { - MediaScanner *mp = (MediaScanner *)env->GetIntField(thiz, fields.context); + LOGV("extractAlbumArt"); + MediaScanner *mp = + (MediaScanner *)env->GetIntField(thiz, fields.context); if (fileDescriptor == NULL) { - jniThrowException(env, "java/lang/IllegalArgumentException", NULL); + jniThrowException(env, kIllegalArgumentException, NULL); return NULL; } @@ -233,14 +282,14 @@ android_media_MediaScanner_extractAlbumArt(JNIEnv *env, jobject thiz, jobject fi return NULL; } long len = *((long*)data); - + jbyteArray array = env->NewByteArray(len); if (array != NULL) { jbyte* bytes = env->GetByteArrayElements(array, NULL); memcpy(bytes, data + 4, len); env->ReleaseByteArrayElements(array, bytes, 0); } - + done: free(data); // if NewByteArray() returned NULL, an out-of-memory @@ -256,17 +305,18 @@ done: static void android_media_MediaScanner_native_init(JNIEnv *env) { - jclass clazz; - - clazz = env->FindClass("android/media/MediaScanner"); + LOGV("native_init"); + jclass clazz = env->FindClass(kClassMediaScanner); if (clazz == NULL) { - jniThrowException(env, "java/lang/RuntimeException", "Can't find android/media/MediaScanner"); + const char* err = "Can't find android/media/MediaScanner"; + jniThrowException(env, kRunTimeException, err); return; } fields.context = env->GetFieldID(clazz, "mNativeContext", "I"); if (fields.context == NULL) { - jniThrowException(env, "java/lang/RuntimeException", "Can't find MediaScanner.mNativeContext"); + const char* err = "Can't find MediaScanner.mNativeContext"; + jniThrowException(env, kRunTimeException, err); return; } } @@ -274,10 +324,11 @@ android_media_MediaScanner_native_init(JNIEnv *env) static void android_media_MediaScanner_native_setup(JNIEnv *env, jobject thiz) { + LOGV("native_setup"); MediaScanner *mp = new StagefrightMediaScanner; if (mp == NULL) { - jniThrowException(env, "java/lang/RuntimeException", "Out of memory"); + jniThrowException(env, kRunTimeException, "Out of memory"); return; } @@ -287,38 +338,67 @@ android_media_MediaScanner_native_setup(JNIEnv *env, jobject thiz) static void android_media_MediaScanner_native_finalize(JNIEnv *env, jobject thiz) { - MediaScanner *mp = (MediaScanner *)env->GetIntField(thiz, fields.context); - - //printf("##### android_media_MediaScanner_native_finalize: ctx=0x%p\n", ctx); + LOGV("native_finalize"); + MediaScanner *mp = + (MediaScanner *)env->GetIntField(thiz, fields.context); - if (mp == 0) + if (mp == 0) { return; + } delete mp; } -// ---------------------------------------------------------------------------- - static JNINativeMethod gMethods[] = { - {"processDirectory", "(Ljava/lang/String;Landroid/media/MediaScannerClient;)V", - (void *)android_media_MediaScanner_processDirectory}, - {"processFile", "(Ljava/lang/String;Ljava/lang/String;Landroid/media/MediaScannerClient;)V", - (void *)android_media_MediaScanner_processFile}, - {"setLocale", "(Ljava/lang/String;)V", (void *)android_media_MediaScanner_setLocale}, - {"extractAlbumArt", "(Ljava/io/FileDescriptor;)[B", (void *)android_media_MediaScanner_extractAlbumArt}, - {"native_init", "()V", (void *)android_media_MediaScanner_native_init}, - {"native_setup", "()V", (void *)android_media_MediaScanner_native_setup}, - {"native_finalize", "()V", (void *)android_media_MediaScanner_native_finalize}, -}; + { + "processDirectory", + "(Ljava/lang/String;Landroid/media/MediaScannerClient;)V", + (void *)android_media_MediaScanner_processDirectory + }, + + { + "processFile", + "(Ljava/lang/String;Ljava/lang/String;Landroid/media/MediaScannerClient;)V", + (void *)android_media_MediaScanner_processFile + }, -static const char* const kClassPathName = "android/media/MediaScanner"; + { + "setLocale", + "(Ljava/lang/String;)V", + (void *)android_media_MediaScanner_setLocale + }, + + { + "extractAlbumArt", + "(Ljava/io/FileDescriptor;)[B", + (void *)android_media_MediaScanner_extractAlbumArt + }, + + { + "native_init", + "()V", + (void *)android_media_MediaScanner_native_init + }, + + { + "native_setup", + "()V", + (void *)android_media_MediaScanner_native_setup + }, + + { + "native_finalize", + "()V", + (void *)android_media_MediaScanner_native_finalize + }, +}; // This function only registers the native methods, and is called from // JNI_OnLoad in android_media_MediaPlayer.cpp int register_android_media_MediaScanner(JNIEnv *env) { return AndroidRuntime::registerNativeMethods(env, - "android/media/MediaScanner", gMethods, NELEM(gMethods)); + kClassMediaScanner, gMethods, NELEM(gMethods)); } |