metadata

问题 Given a llvm.dbg.declare , how can I get its llvm value? e.g. call void @llvm.dbg.declare(metadata !{i32** %r}, metadata !23), !dbg !24 I want get the Value i32** %r , not the metadata !{i32** %r} . Please give me the code! Thanks! 回答1: metadata !{i32** %r} is the 1st operand of the call instruction, and i32** %r is the 1st operand of the metadata. So something like this should work: CallInst I = ... // get the @llvm.dbg.declare call Value* referredValue = cast<MDNode>(I->getOperand(0))-

问题 As shown in the figure above.I chose the take a picture exif information is null. I chose image from phone option and exif information is not null. 回答1: You cannot read exif data from a Stream using the android api. ExifInterface doesn't have a constructor with an InputStream. However, You can use the metadata-extractor and use the constructor with an InputStream to build an InputStream backed by your byte[] using a ByteArrayInputStream 回答2: It is now possible to read EXIF data from streams

问题 Dart code: @Table("users") class User {} And the metadata declaration: class Table { final String name; const Table(this.name); } I can get the metadata @Table by following code: var classMirror = reflectClass(User); var metadata = classMirror.metadata; print(metadata); Which prints: [InstanceMirror on Instance of 'Table'] But I don't know how to get the users from it :( 回答1: You can use InstanceMirror.getField : metadata.getField(#name); 来源： https://stackoverflow.com/questions/21555598/how

问题 I have a problem with getting the metadata of an audio/mpeg (mp3). For example, I'm using JS to get the duration of the audio file and when the cache is empty the duration value returns "Infinity" (NaN). I have tried with the events/attributes preload and onloadedmetadata and always when the cache is empty I can't get the duration and other properties of an audio. Note: The problem is only when I clean the cache (or when the visitors comes first time to the page). audioElement = new Audio(

问题 I am trying to write a Python script to extract metadata tags from some mp3 files. Specifically, I am looking to extract "Album" and "Encoded by", which are available if I right-click on the files and look under details: I am using currently using the eyeD3 library to parse metadata. I am using this library because I thought it would easily accomplish my task, but I am not married to it. I am able to extract the "Album" easily enough, but not the "Encoded by" field. If I print out all the

问题 I have a page with a series of links to Greasemonkey userscripts. The userscripts have @updateURL parameters set, so that when I upload a new version to the page people who have the script installed either have their version of it updated automatically or are asked if they want to upgrade. This all works fine. I have Google analytics installed on the hosting page, so I can see how many hits the page gets, but what I would like to know is how many people are getting the updates. The normal

问题 I'm writing a swift program, and I want to list all metadata of a given folder using swift. As I understand, I'll need NSMetadataItem . The reference doc of NSMetadataItem is not very clear to me though, so I'm unable to write a code sample here. How to list all metadata of a folder? 回答1: Initialize a new instance of NSMetadataItem with the folder's NSURL: let item = NSMetadataItem(URL: folderURL) Then safely unwrap the values: if let item = item, attributes = item.valuesForAttributes(item

问题 How can I make the following code work? It throws an error saying that there are two meta data attributes of identical names, though I do not see why. The error message is as follows: An unhandled exception of type 'System.InvalidOperationException' occurred in System.ComponentModel.Composition.dll Additional information: Member or Type 'ConsoleApplication2.DoSomeMagic' contains multiple metadata entries with the name 'PluginName'. The metadata entries could be coming from the

问题 I am writing an EDA utility, relying on a TCL 8.6 compliant API. My challenge is as follows: My utility runs on transistors' models in the database, and does some analyisis, using an EDA vendors' TCL API command. I can pass to the TCL commands a TCL procedure name/pointer, and the analysis will rely on my code, rather than the EDA vendors' code. The in-house written proc accepts as an argument a pointer to the specific transistor's instance in the EDA vendor's database. Now, the EDA vendor

问题 I'm working on a Radio Streming application for Android. The music is well recieved and played by the MediaPlayer class, but the problem is when I try to retrieve the Metadata, the App blocks and returns errors. This is the code: package com.tests.mediaplayer1; import java.io.IOException; import android.media.AudioManager; import android.media.MediaMetadataRetriever; import android.media.MediaPlayer; import android.os.Bundle; import android.app.Activity; import android.content.Context; import