本文整理汇总了C++中MediaMetadataRetriever::extractAlbumArt方法的典型用法代码示例。如果您正苦于以下问题：C++ MediaMetadataRetriever::extractAlbumArt方法的具体用法？C++ MediaMetadataRetriever::extractAlbumArt怎么用？C++ MediaMetadataRetriever::extractAlbumArt使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类MediaMetadataRetriever的用法示例。
在下文中一共展示了MediaMetadataRetriever::extractAlbumArt方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: wseemann_media_FFmpegMediaMetadataRetriever_getEmbeddedPicture
static jbyteArray wseemann_media_FFmpegMediaMetadataRetriever_getEmbeddedPicture(JNIEnv *env, jobject thiz)
{
//__android_log_write(ANDROID_LOG_INFO, LOG_TAG, "getEmbeddedPicture");
MediaMetadataRetriever* retriever = getRetriever(env, thiz);
if (retriever == 0) {
jniThrowException(env, "java/lang/IllegalStateException", "No retriever available");
return NULL;
}
AVPacket packet;
av_init_packet(&packet);
jbyteArray array = NULL;
if (retriever->extractAlbumArt(&packet) == 0) {
int size = packet.size;
uint8_t* data = packet.data;
array = env->NewByteArray(size);
if (!array) { // OutOfMemoryError exception has already been thrown.
//__android_log_print(ANDROID_LOG_ERROR, LOG_TAG, "getEmbeddedPicture: OutOfMemoryError is thrown.");
} else {
//__android_log_print(ANDROID_LOG_INFO, LOG_TAG, "getEmbeddedPicture: Found album art.");
jbyte* bytes = env->GetByteArrayElements(array, NULL);
if (bytes != NULL) {
memcpy(bytes, data, size);
env->ReleaseByteArrayElements(array, bytes, 0);
}
}
}
av_free_packet(&packet);
return array;
}开发者ID:Leetyle，项目名称:FFmpegMediaMetadataRetriever，代码行数:33，代码来源:wseemann_media_MediaMetadataRetriever.cpp
示例2: android_media_MediaMetadataRetriever_getEmbeddedPicture
static jbyteArray android_media_MediaMetadataRetriever_getEmbeddedPicture(
JNIEnv *env, jobject thiz, jint pictureType)
{
ALOGV("getEmbeddedPicture: %d", pictureType);
MediaMetadataRetriever* retriever = getRetriever(env, thiz);
if (retriever == 0) {
jniThrowException(env, "java/lang/IllegalStateException", "No retriever available");
return NULL;
}
MediaAlbumArt* mediaAlbumArt = NULL;
// FIXME:
// Use pictureType to retrieve the intended embedded picture and also change
// the method name to getEmbeddedPicture().
sp<IMemory> albumArtMemory = retriever->extractAlbumArt();
if (albumArtMemory != 0) { // cast the shared structure to a MediaAlbumArt object
mediaAlbumArt = static_cast<MediaAlbumArt *>(albumArtMemory->pointer());
}
if (mediaAlbumArt == NULL) {
ALOGE("getEmbeddedPicture: Call to getEmbeddedPicture failed.");
return NULL;
}
unsigned int len = mediaAlbumArt->mSize;
char* data = (char*) mediaAlbumArt + sizeof(MediaAlbumArt);
jbyteArray array = env->NewByteArray(len);
if (!array) { // OutOfMemoryError exception has already been thrown.
ALOGE("getEmbeddedPicture: OutOfMemoryError is thrown.");
} else {
jbyte* bytes = env->GetByteArrayElements(array, NULL);
if (bytes != NULL) {
memcpy(bytes, data, len);
env->ReleaseByteArrayElements(array, bytes, 0);
}
}
// No need to delete mediaAlbumArt here
return array;
}