Develop Reference

InsertInlineImage or ReplaceImage URI

I'm writing a WinForms application. I created a Google Doc template file that contains placeholders like {{name}} for various text elements. I can successfully make a copy of this document and use the BatchUpdateDocumentRequest to modify them just fine.
However, I also have an embedded image in the document. I can obtain the objectId for this image just fine. I either want to replace this image with another or remove it from my template and then append my new image to the end of the document. In both cases, the InsertInlineImage or ReplaceImage classes require a URI of the image to insert or replace with. This is where I have an issue.
The image itself has been captured from a control on the WinForms. Its actually a chart. I've saved the image in PNG format since I know that is one of the formats supported by Google drive/docs. I figured in order to use it in the batch update, I would need to upload it first, so I did and got its file id and webcontentlink back in the response.
I'm not locked into any particular way of doing this. I originally tried creating an HTML file, uploading but then it would strip the image from it, so became useless, so I switched gears to using a Google Doc as my template and just try to replace elements in it instead. This went well until I got to the image.
Essentially no matter what I try to specify as the URI, it says the file in not in a supported format.
As far as I can tell, Google expects the URI to actually end in .png or be a real link versus a download URL you'd get from Google Drive.
Here is an example of the code I'm using to attempt to replace the image. The strImageObjectId is the objectId of the Embedded Object image in the template document copy that I want to replace. The Uri is what Google needs to pull the new image from. I'm happy to pull it from my local computer or Google Drive if only I could get it to accept it somehow.
BatchUpdateDocumentRequest batchUpdateRequest = new BatchUpdateDocumentRequest {
Requests = new List<Google.Apis.Docs.v1.Data.Request>()
};
request = new Google.Apis.Docs.v1.Data.Request {
ReplaceImage = new ReplaceImageRequest() {
ImageObjectId = strImageObjectId,
Uri = strChartWebContentLink
}
};
batchUpdateRequest.Requests.Add(request);
DocumentsResource.BatchUpdateRequest updateRequest =
sDocsService.Documents.BatchUpdate(batchUpdateRequest, strCopyFileId);
BatchUpdateDocumentResponse updateResponse = updateRequest.Execute();
I'm happy to use whatever method will get me to a point where I an end up with a Google Doc on Google Drive that was based on a template in which I can replace various text elements, but most importantly add/replace an image.
Thanks so much for the advice.

I got to the point were I believe I was specifying the URI correctly, but then I started getting an access forbidden error instead.
I didn't have time to hunt this one down, so I went back to creating an HTML template with my image, uploading as a Google Doc, exporting to PDF, and then uploading as a PDF. This ended up working because originally I was using a BMP as the file format and that is not supported by Google Docs, so I changed to a PNG instead and it worked just fine.
I think Google Docs needs to add the ability to add an image using a MemoryStream or some other programmatic base64 resource instead of purely being based on URIs and running into temporary upload or permission issues.

Hey I'm doing the same thing with you,
and I got this, by modify the download link format.
from this:
https://docs.google.com/uc?export=download&id={{YOUR GDRIVE IMAGE
ID}
to this
https://docs.google.com/uc?export=view&id={{YOUR GDRIVE IMAGE ID}
e.g :
uri: "https://docs.google.com/uc?export=view&id=1cjgyHqtYSgS0CBT4x-9eQIHRzOIfGgv-"
but the image should be set for public privilege

How to simply access SkyDrive, write and read files?

I want to use SkyDrive to backup some information.
But seems they have removed this namespace Microsoft.Live.Controls; from the new SDK, and all code samples and also answers here are outdated.
this reference also is outdated; there is no more LiveConnectClient
How can I simply backup files to SkyDrive after these changes?
(any code sample or reference is appreciated.)

It's not that hard, but there really are no references or tutorials. Everything that's below works just fine in my Windows Phone 8 project.
You need to include Microsoft.Live namespace after installing Live SDK.
First you have to create and initialize the client. After that, you log in and can send over some data:
LiveConnectClient client;
var auth = new LiveAuthClient("YourGeneratedKey");
var result = await auth.InitializeAsync(new [] {"wl.basic", "wl.signin", "wl.skydrive_update" });
// If you're not connected yet, that means you'll have to log in.
if(result.Status != LiveConnectSessionStatus.Connected)
{
// This will automatically show the login screen
result = await auth.LoginAsync(new [] {"wl.basic", "wl.signin", "wl.skydrive_update" });
}
if(result.Status == LiveConnectSessionStatus.Connected)
{
client = new LiveConnectClient(result.Session);
}
Maybe the process above could be simplified, but it works for me.
Now you can use the client if everything went as planned. I've managed to successfully upload files from streams.
Let's say you've obtained a Stream to the file you want to send (I got that via WinRT file API on Windows Phone 8, IStorageFolder, then getting the file, then file.OpenStreamForReadAsync()), I'll just assume it's a text file for example purposes:
using(stream)
{
await client.UploadAsync("me/skydrive", "myfile.txt", stream, OverwriteOption.Overwrite);
}
Actually, I've used the overload that also accepts CancellationToken and IProgress<LiveOperationProgress>, mostly for progress notifications.
There, that should upload the file to the main directory on logged user's SkyDrive.

Splicer Libraries are not supporting the mp3 format

I'm a trying to create a simple application in C#.NET that can generate a video file from a stream of Images and an audio file.
I chooses the Splicer and its working perfectly fine with my part of code. However when I try to put an mp3 audio format it shows an ERROR:An invalid media type was specified.
I scanned the Splicer forum but didn't get anything useful.
Any kind of help is appreciated.
Here is a simple code:
using (ITimeline timeline = new DefaultTimeline())
{
IGroup audioGroup = timeline.AddAudioGroup();
ITrack rootTrack = audioGroup.AddTrack();
rootTrack.AddAudio("testinput.mp3");
using (
WindowsMediaRenderer renderer =
new WindowsMediaRenderer(timeline, "output.avi", WindowsMediaProfiles.LowQualityAudio))
{
renderer.Render();
}
}

Getting MP4 File Duration with DirectShow

I need to get the duration of an mp4 file, preferably as a double in seconds. I was using DirectShow (see code below), but it keeps throwing a particularly unhelpful error. I'm wondering if someone has an easy solution to this. (Seriously, who knew that getting that information would be so difficult)
public static void getDuration(string moviePath)
{
FilgraphManager m_objFilterGraph = null;
m_objFilterGraph = new FilgraphManager();
m_objFilterGraph.RenderFile(moviePath);
IMediaPosition m_objMediaPosition = null;
m_objMediaPosition = m_objFilterGraph as IMediaPosition;
Console.WriteLine(m_objMediaPosition.Duration);
}
Whenever I run this code, I get the error: "Exception from HRESULT: 0x80040265"
I also tried using this: Getting length of video
but it doesn't work either because I don't think that it works on MP4 files.
Seriously, I feel like there has to be a much easier way to do this.
Note: I would prefer to avoid using exe's like ffmpeg and then parsing the output to get the information.

You are approaching the problem correctly. You need to build a good pipeline starting from source .MP4 file and up to video and audio renderers. Then IMediaPosition.Duration will get you what you want. Currently you are getting VFW_E_UNSUPPORTED_STREAM because you cannot build the pipeline.
Note that there is no good support for MPEG-4 in DirectShow in clean Windows, you need a third party parser installed to add missing blocks. This is the likely cause of your problem. There are good Free DirectShow Mpeg-4 Filters available to fill this gap.
The code sample under the link Getting length of video is basically valid too, however it uses deprecated component which in additional make additional assumptions onto the media file in question. Provided that there is support for .MP4 in the system, IMediaPosition.Duration is to give you what you look for.

You can use get_Duration() from IMediaPosition interface.
This return a double value with the video duration in seconds.
Double Lenght;
m_FilterGraph = new FilterGraph()
//Configure the FilterGraph()
m_mediaPosition = m_FilterGraph as IMediaPosition;
m_mediaPosition.get_Duration(out Length);

Using Windows Media Player Component also, we can get the duration of the video.
I hope that following code snippet may help you guys :
using WMPLib;
// ...
var player = new WindowsMediaPlayer();
var clip = player.newMedia(filePath);
Console.WriteLine(TimeSpan.FromSeconds(clip.duration));
and don't forget to add the reference of wmp.dll which will be
present in System32 folder.

Make correct URI for WP Game Library

I am trying to create a library with sounds in it, but I cant get the URIs to work, if I use a online uri like
new Uri("http://www.archive.org/download/BrahmsViolinConcerto-Heifetz/03Iii.AllegroGiocosoMaNonTroppoVivace.mp3")
it works fine, so the issue is linking correctly to my folders in my project
My in my WP Game Librarys folder I have \Sounds\letters and in that folder is a sound named a.wma
My Method for loading this is
public void PlayLetter(string letter)
{
try
{
Initialize();
FrameworkDispatcher.Update();
var uri = new Uri(#"/Sounds/letters/" + letter + ".wma", UriKind.Relative);
var song = Song.FromUri("sound", uri);
MediaPlayer.Play(song);
}
catch(Exception e)
{
Console.WriteLine(e.ToString());
}
}
And I of course give it string "a" as a parameter when it fails
I have also included the sound file in my project like
I just get a
A first chance exception of type 'System.InvalidOperationException' occurred in Microsoft.Xna.Framework.dll
But its an uri problem I am certain as I tried a online URI that worked just fine
Also I am in doubt of 2 things, is MediaPlayer the right thing to use in a game? And can a library play sounds (Or even contain them)

The typical thing in XNA would be to use a SoundEffectInstance:
http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.audio.soundeffectinstance.aspx
Unfortunately SoundEffectInstance only works with wav files. If you want to play back longer music files - you can use a MediaElement - but that allows for playback of a single compressed audio file at a time only. Another option might be to play compressed from the MediaLibrary using the MediaPlayer class. You could also save your own compressed audio file in the MediaLibrary to play it from there. See:
http://msdn.microsoft.com/en-us/library/microsoft.xna.framework.media.medialibrary.songs.aspx