metadata

问题 My PDF contains "%PDF-1.3" in header. It means PDF Version is 1.3 ,But Adobe reader( XI) installed on my system shows version as 1.5 if looking it in File > Properties. What is right? 1.3 or 1.5? I can get PDF version as 1.3 by reading PDF metadata in java. How can I get PDF version 1.5 through java program? 回答1: The version in the file header can be overridden later in the file, cf the PDF specification: Beginning with PDF 1.4, the Version entry in the document’s catalog dictionary (located

问题 I am doing a meta analysis using R and I decided that I wanted to confirm that two widely used R packages (meta and metafor) produce the same results (I've pasted my code below). Unfortunately, they're not quite the same and I'm trying to figure out why because using one package indicates there is a significant overall effect and the other doesn't. Does anyone have any experience with these packages to know why? The caveat here is that I work in a field that very much cares about p-values

问题 I have a requirement to set google map Api key dynamically i.e form the code not from manifest .Currently I am getting this value form string.xml . Which is not the preferred way according to the requirement . <meta-data`android:name="com.google.android.maps.v2.API_KEY"` android:value="@string/map_api_key" /> How can I set this value form code . 回答1: The way you would do this is as a manifest placeholder. In your AndroidManifest.xml put a variable declaration like this: <meta-data android

问题 I want to get the metadata information from one of icecast streaming servers and display such data in my Android Application. Any recommendation? using the below code , I am not able to get the full metadata ( artist and the title ....) code String stringUrl="http://dev.kigen.co:8000/xrm-ele.opus"; URL url = null; try { url = new URL(stringUrl); } catch (MalformedURLException e) { // TODO Auto-generated catch block e.printStackTrace(); } URLConnection cn = null; try { cn = url.openConnection(

问题 Is there a way we can fetch comments form Oracle using Java Code?I tried Using Describe but it did not work for JDBC(Java Code). Can u suggest some way? 回答1: You can running this query to get table's comment. select comments from user_tab_comments where table_name = 'T'; If you want to get column's comment: select comments from user_col_comments where table_name = 'T'; 回答2: the java code would be similar what you would be using with any normal query i.e by establishing a connection and then

问题 I tried to convert the PNG file into bytes wit the code below var enc:Base64Encoder = new Base64Encoder(); enc.encodeBytes(bytes); var base64data:String = enc.drain(); trace("base64data : "+base64data); trace("end of base64data "); But what i get is a chunk of characters like this AKGt1qPxYT9Aduzcags+mgc1fp8SPIDQLEB4zwMxOoieCCCJdsICQBAIiwBi5Ra8hnfACt+YHnro waV23Dwp5y+YyxBCp+4SNOwGCD0sfq0+gKgVyw6A0EM5/KCm2Y0dO7cpS5cuVubMeUGZNv15dnjX 3LkvKqtWr1De2L

问题 I need to read and inject XMP metadatas in an mp4 container. I know this is possible on android with the "mp4parser" library, but I couldn't find an equivalent for iOS. For the read part, is it possible to read every footage from the camera roll to inspect their 360 XMP metadatas quickly ? For the writing, I'm trying to use Adobe's XMP toolkit. I have an mp4 video in a folder, and I want to inject into it some 360 metadatas. After injecting the metadatas (I suppose it works), I export the

问题 I'm using the metada-exttractor in android ver.: 2.7.0. And this lib sometimes throw this exception:` STACK_TRACE=java.lang.RuntimeException: An error occured while executing doInBackground() at android.os.AsyncTask$3.done(AsyncTask.java:300) at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355) at java.util.concurrent.FutureTask.setException(FutureTask.java:222) at java.util.concurrent.FutureTask.run(FutureTask.java:242) at android.os.AsyncTask$SerialExecutor$1.run

问题 I couldn't find this from Microsoft support page, but Is it possible to add description/metadata to an Azure Blob using Azure Portal? Without using any lines of code. 回答1: Use Microsoft Azure Storage Explorer to do it. http://storageexplorer.com/releasenotes.html It allows you to edit metadata graphically like so: 来源： https://stackoverflow.com/questions/41965474/adding-description-metadata-to-azure-blob

问题 I'm writing an radio app and want to get metadata from url of .pls format and the following code: var PlayerItem: AVPlayerItem! var asset : AVAsset? // init with url of .pls format PlayerItem = AVPlayerItem(asset: asset!) PlayerItem.addObserver(self, forKeyPath: "timedMetadata" [...] PlayerItem.timedMetadata - is always nil or 0 What am I supposed to add, to receive metadatas? 回答1: Quick Swift 2 implemetation: var player: AVPlayer! var playerItem: AVPlayerItem! override func viewDidLoad() {