Not yet, but I have a piece of code that retrieves the StreamInfo, so I think rather in Out (I checked also in my own library)
But I must get to that level of code (Run) to check.
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New Post: Resampler Transform
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New Post: Resampler Transform
// HRG(pTransform->GetOutputStreamInfo(0, &StreamInfo)); pTransform.GetInputStreamInfo(0,out StreamInfo);// if (cbOutBytes < StreamInfo.cbSize) {// cbOutBytes = StreamInfo.cbSize;// }if (cbOutBytes < StreamInfo.cbSize) { cbOutBytes = StreamInfo.cbSize; }
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New Post: Resampler Transform
I watched a doc http://msdn.microsoft.com/en-us/library/windows/desktop/ms693880 (v = VS.85). aspx
And apparently it is out
To be continued ....
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Source code checked in, #2714c10aae6d
making some nice wrappers for a few MF interop functions in the API class
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New Post: Resampler Transform
Change class MFT_INPUT_STREAM_INFO to struct
Ok
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New Post: Resampler Transform
Well I overcome my initial problem of this discussion. :-)
Obviously must be in this order ::
1) Create MediaType
2) SetInputType, SetOutputType
3) SampleIn -> MediaBuffer + Edit SetSampleDuration & SetSampleTime
4) ProcessMessage
5) ProcessInput
6) ProcessOuput
7) Read SampleOut
I have a routine that works (well there is no error)I need to check a few points.
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Source code checked in, #854372f85ff1
interpreting more AAC encoder properties
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New Post: Resampler Transform
OuffffffI managed to make a routine that works IMFTransform
Remains to the integrated
(For the moment the routine generates a 1KHz sine 1Second and save to a file Resampler)
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Source code checked in, #eee31591239d
encoder demo has better display of selected media type
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Source code checked in, #40f6d4e20c38
adding in a full set of error codes for Media Foundation
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Source code checked in, #f13dd1a5e11c
improving the GUI on the encoder demo to allow easy selection of possible bitrates
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Source code checked in, #430170d79478
better naming of output file for Media Encoder demo
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New Post: Windows 8 WinRT Metro Style Support
How is WinRT support efforts going? I downloaded the project and it looks like there's been some progress. Would it be worthwhile for me to fork and do some work?
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New Post: MediaFoundation CreateWaveFormatFormMediaType
small complement
// MediaFoundationHelper.cspublicstatic WaveFormat CreateWaveFormatFromMediaType(IMFMediaType mediatype) { WaveFormat wF;int pcbSize = 0; MediaFoundationInterop.MFCreateWaveFormatExFromMFMediaType(mediatype, out wF, out pcbSize);return (WaveFormat)wF; }// Modify in MediaFoundationInterop.cs///<summary>/// Converts a Media Foundation audio media type to a WAVEFORMATEX structure.// </summary>/// TODO: try making second parameter out WaveFormatExtraData [DllImport("mfplat.dll", ExactSpelling = true, PreserveSig = false)]internalstaticexternvoid MFCreateWaveFormatExFromMFMediaType ( IMFMediaType pMFType,out WaveFormat wf,outint pcbSize,int flags = 0 );
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New Post: Windows 8 WinRT Metro Style Support
Hi tcl,
Did you see my recent blog post on adding Windows Store support to NAudio? I'm actively working on it at the moment, but there is some way to go. Here's the key tasks that need to be completed.
1. Media Foundation. This is because ACM and DMO which NAudio already supported are both not allowed in Windows Store apps. The main three things we need are a MediaFoundationReader (which is mostly complete, just needs some tweaks), a MediaFoundationEncoder (which I have prototyped the internals of, just need to give it a nice public API), and a MediaFoundationResampler, which another forum user Manu is kindly helping out with, so hopefully there will be enough Media Foundation interop in the very near future.
2. WASAPI. Even though I have already done all the hard work on WASAPI interop, it will need to be modified to work with Windows Store apps. Currently I've not decided whether to make completely separate WasapiOut and WasapiIn classes for the Win8. I don't know whether loopback capture is possible. There is a great article on CodeProject showing how it can be done (in VB), so I'm hoping that when I get onto this in the very near future, it should be done quite quickly.
3. Streams NAudio depends heavily on the Stream base class, but the WinRT API now seems to prefer IInputStream, IOutputStream and IRandomAccessStream. There are a lot of classes (e.g. the WaveFileReader, WaveFileWriter, MP3FileReader, AiffFileReader, AiffFileWriter) that will at least need new constructors. I don't really want to have to maintain two completely separate versions of all these classes, so one interesting task will be to see what the simplest change that allows them to be used with the regular Windows Store file APIs is.
4. Demo Project I'm also going to create a Windows Store demo app. It will follow a similar structure to the WPF and WinForms ones, allowing me to very quickly add in new demos. Before we announce WinRT support we need two main demos. One reads files using MediaFoundationPlayer and plays them through WASAPI, and the other records from the microphone and encodes to WMA/MP3 using the MediaFoundationEncoder. I'll probably throw in some visualisation like waveform drawing as well. Once I've got the basic demo store app's structure in place, it should be easy for people to contribute other WinRT demos to it.
If you want to contribute, the best way at the moment is probably to prototype a proof of concept for one of these tasks, since the overall project is still very fluid and so I may not be able to merge in large contributions. Let me know if there is anything above that takes your interest.
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New Post: MediaFoundation CreateWaveFormatFormMediaType
hi Manu, thanks for this,although I think you may need to use WaveFormatExtraData in the function prototype, or you could end up missing the extra bytes. CreateWaveFormatFromMediaType should still return a WaveFormat though.
Mark
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Source code checked in, #b05f3aeb91f8
prototyping a Media Foundation Encoder class
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Created Issue: windows phone 8 project support [16376]
Hello!
I have problem when trying to get NAudio from Nuget in my Windows Phone 8 project.
Here is log from console:
PM> Install-Package NAudio -Pre
Successfully installed 'NAudio 1.7-alpha01'.
Successfully uninstalled 'NAudio 1.7-alpha01'.
Install failed. Rolling back...
Install-Package : Could not install package 'NAudio 1.7-alpha01'. You are trying to install this package into a project that targets 'W
indowsPhone,Version=v8.0', but the package does not contain any assembly references or content files that are compatible with that fram
ework. For more information, contact the package author.
At line:1 char:1
+ Install-Package NAudio -Pre
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Install-Package], InvalidOperationException
+ FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand
I have problem when trying to get NAudio from Nuget in my Windows Phone 8 project.
Here is log from console:
PM> Install-Package NAudio -Pre
Successfully installed 'NAudio 1.7-alpha01'.
Successfully uninstalled 'NAudio 1.7-alpha01'.
Install failed. Rolling back...
Install-Package : Could not install package 'NAudio 1.7-alpha01'. You are trying to install this package into a project that targets 'W
indowsPhone,Version=v8.0', but the package does not contain any assembly references or content files that are compatible with that fram
ework. For more information, contact the package author.
At line:1 char:1
+ Install-Package NAudio -Pre
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : NotSpecified: (:) [Install-Package], InvalidOperationException
+ FullyQualifiedErrorId : NuGetCmdletUnhandledException,NuGet.PowerShell.Commands.InstallPackageCommand
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Source code checked in, #7301a8d4ee44
first attempt at the Media Foundation resampler, still has some issues with ProcessOutput
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Source code checked in, #f0adbc461087
now able to read ProcessOutput, but creates garbage resampling, probably needs us to timestamp our input samples
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