Universal Windows Platform

Welcome to the Windows Platform Developer (WPDev) Feedback site. This feedback forum provides the WPDev community with a channel for feedback on the following topics:

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  1. Add a SavePng extension to WriteableBitmap (similar to SaveJpeg)

    When you create a tile dynamically, it is common to want to save it as a Png file so that it uses transparency (so that it respects the theme accent color).
    However, there is no built in method to save a WriteableBitmap as a png.
    There is however a nice extension to save it to jpg, but that doesn't help if you want to use transparency to leverage the theme accent color in your tile.

    I think many apps that need to generate a tile dynamically will encounter this issue.

    154 votes
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      5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
    • MP3/AACP (HE AAC) Shoutcast audio stream support

      Windows 8.1 supports both these audio codecs under Shoutcast streams. Windows Phone 8.1 still doesn't.

      128 votes
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        5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
      • 21 votes
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          3 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
        • User level App-to-App media (Audio/MIDI/Video)

          Windows should allow users to freely redirect media (Audio, MIDI even Video someday, I guess) from/to the Hardware(audio interface, webcam, etc) and/or Applications (even considering "The Desktop" as a video+audio media generator).

          Any media (Audio/MIDI/Video) generator/consumer (be it an app or an hardware device) should be treated as a freely connectable node, instead of an hardwired starting/ending point, like today.

          This would allow the user, through the OS, to "detach" an App media output from its default interface (audio/midi card, screen/window) and "re-attach" it to another App (or device) input.

          An example of this "An application as a node in…

          17 votes
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            2 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
          • Custom Windows.Media.Audio.AudioGraph nodes

            Please provide a way to implement AudioGraph nodes for custom Media Foundation MediaSource (input nodes) and MediaSinks (output nodes).
            It could be something like:
            for input nodes
            IAsyncOperation<CreateAudioCustomInputNodeResult> AudioGraph.CreateCustomInputNodeAsync(IMediaExtension customMediaSurce);
            IAsyncOperation<CreateAudioCustomInputNodeResult> AudioGraph.CreateCustomInputNodeAsync(AudioEncodingProperties encodingProperties, IMediaExtension customMediaSurce);
            IAsyncOperation<CreateAudioCustomInputNodeResult> AudioGraph.CreateCustomInputNodeAsync(String customMediaSourceActivationId, IPropertySet customMediaSourceSettings)
            IAsyncOperation<CreateAudioCustomInputNodeResult> AudioGraph.CreateCustomInputNodeAsync(AudioEncodingProperties encodingProperties, String customMediaSourceActivationId, IPropertySet customMediaSourceSettings);

            for output nodes
            IAsyncOperation<CreateAudioCustomOutputNodeResult> AudioGraph.CreateCustomOutputNodeAsync(IMediaExtension customSink);
            IAsyncOperation<CreateAudioCustomOutputNodeResult> AudioGraph.CreateCustomOutputNodeAsync(AudioEncodingProperties encodingProperties, IMediaExtension customSink);
            IAsyncOperation<CreateAudioCustomOutputNodeResult> AudioGraph.CreateCustomOutputNodeAsync(String customSinkActivationId, IPropertySet customSinkSettings)
            IAsyncOperation<CreateAudioCustomOutputNodeResult> AudioGraph.CreateCustomOutputNodeAsync(AudioEncodingProperties encodingProperties, String customSinkActivationId, IPropertySet customSinkSettings);

            it would be very very appreciated!

            12 votes
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              0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
            • Read currently played song

              I would like to read currently played song or content in Windows 10. Use case: As neither Groove nor Spotify have a lyrics functionality (anymore) I created a simple UWP app to manage lyrics for songs. I would like to add a function that automatically loads the lyrics to the song that is played right now.

              To solve that, it would be enough to have read access to the System Media Transport Controls data of other apps. Following data would be great:
              - Title
              - Artist
              - Album cover (optional)
              - App name
              - Is playing or not
              - Is…

              10 votes
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                1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
              • Allow UWP apps to control audio / video from a different app

                It would be very useful if you allow external devices (e.g through Bluetooth) to control the running audio/video on the phone. This feature is implemented in the accessory API which is restricted to only smart watch makers.

                An example would be i would want to have my smart watch pause or alter the volume

                10 votes
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                  2 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                • Get the color of a physical pixel from the display

                  Advanced creation tools need to implement features like the eye dropper which allow the user to select a color on the screen and use it in the application.

                  Having an API allowing getting the color of the pixels under a pointer (eventually throttled/async and only when having pointer capture on) would increase the expressiveness of the creation tools in UWP applications.

                  Another API enabling this use case would be to allow capturing a bitmap of an area of the display.

                  9 votes
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                    0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                  • Pause and resume "external" background audio

                    In the current incarnation of Windows Phone 8.1, when background audio is playing (such as Xbox music, podcasts, whatever), and a Microsoft foreground microphone/audio app activates (such as the phone, etc.), the background audio is automatically paused. When the foreground mic/audio app stops its access, the background audio automatically resumes.

                    This capability is needed for third party apps also. For example, to mute background audio before recording, a speech recognition app is forced to play a "blank" audio clip in the foreground, causing other apps' background audio to pause. OK. But subsequently the foreground app cannot resume the background audio.

                    8 votes
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                      1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                    • [Bug] AudioGraph: Gaps and clicks during playback

                      To reproduce you may start with official AudioCreation sample from https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/AudioCreation/cs/AudioCreation
                      Use file playback sample or custom effects sample. Depending on hardware, you may hear gaps right after start or you may need load CPU with some additional work, like scrolling UI or running some work in background threads.
                      I guess it is result of extremely short quantum size (10ms; even switching between threads could take more time) and too low buffer length (2 quants), but it could be just some synchronization issue.

                      7 votes
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                        3 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                      • [Bug] AudioGraph: DesiredSamplesPerQuantum is ignored

                        AudioGraph created with custom DesiredSamplesPerQuantum ignores it and uses default 10ms quantum.

                        7 votes
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                          0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                        • Custom CaptureSource to be able to use with FileSink. We need the ability to produce encoded audio/video stream/file (like a movie maker).

                          To be able to make a movie (and share it with the rest of the World via youtube) we need an ability to generate MPEG4/WMV stream/file by utilizing hardware codecs (through FileSink). Also some way to change (enhance) audio/video captured from mic/camera before it will be encoded and saved into file.

                          7 votes
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                            0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                          • Get audio frequency data

                            if audio file Api can give some frequency data, so that developers can create some creative frequency waveform (on UI) for their music player apps.

                            6 votes
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                              0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                            • Add support of HTTP Live streaming protocol in the media player

                              HLS becomes more and more popular to stream live video contents on mobile devices. Is there any plan to support this protocol in WP? If not, what is the recommended solution.

                              6 votes
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                                1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                              • Redesign Audio Drivers to use all available channels (Like ASIO)

                                The current Windows Audio driver design only allows you to use 24 channels simulatenously. There are many devices (like a USB-Madi, or Dante Virtual Soundcard) which use at least 64 channels. These channels are not accessible with the current AudioGraph API's. This is a real problem.

                                The Playback Devices and Recording Devices section should be merged and more info like samplerate, channelcount and meters for every input and output should be added with a better UI. It should also be possible to easily select the device where you want to play your system sounds but also to select two channels…

                                6 votes
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                                  0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                • Add CreateH265 of VideoEncodingProperties for H/W decoding

                                  So that Windows::Media::Core::MediaStreamSource can use it.

                                  5 votes
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                                    0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                  • directx 12 - XAML interop

                                    Please provide a template for DX12 - XAML interop. The bare minimum is the current d3d11on12 workaround, but better would be true interop, where XAML would generate DX12 code behind the scenes to facilitate the interop.

                                    4 votes
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                                      0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                    • Keep BSD sockets alive for a music apps with backgroundMediaPlayback capability

                                      Music app can provide to its users an extended network functionality such as audio streaming, UPnP/DLNA or SMB/CIFS or FTP client to get music files from server, UPnP/DLNA client to send audio data to renderer, UPnP/DLNA media server or renderer. Such functionality is common to music apps in Google Play Store, Apple Store, BlackBerry World.

                                      In most cases such apps can be ported to UWP platform and because they are coming from a POSIX/Linux the network API is 'BSD sockets' as well as some complex network communication libraries can be used to support this or that network-oriented functionality.

                                      Currently the…

                                      3 votes
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                                        5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →

                                        As long as playback is occurring and content is being streamed by the media stack the network will remain active.

                                        Outside of that we currently require the application to let the platform know when it is performing an operation that requires network access that should not be interrupted by power saving optimizations.

                                        Please refer to the “Network availability for background media apps” section on MSDN.
                                        https://msdn.microsoft.com/en-us/windows/uwp/audio-video-camera/background-audio

                                        When using a task to wrap or lock for the operation, you must set the InternetAvailable condition.
                                        https://msdn.microsoft.com/en-us/windows/uwp/launch-resume/set-conditions-for-running-a-background-task

                                        Note that tasks can be run in-proc and do not need to be hosted in an external process.

                                        We thank you for your feedback and will look for opportunities to make this easier in the future.

                                      • Add Ogg Vorbis/Opus to AudioEncodingProperties

                                        It would be extremely helpful to be able to create MediaSourceStreams for audio streams in the Vorbis and/or Opus formats. In my case, I need this functionality for implementing Shoutcast/Icecast functionality.

                                        3 votes
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                                          0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Update OCR to use forced horizontal direction.

                                          I've already asked the forum (where you can find the detailed description on the issue)

                                          https://social.msdn.microsoft.com/Forums/windowsapps/en-US/d3b3d9db-470d-4f62-a414-7b27b65ee676/uwpc-ocr-engine-with-forced-horizontal-text-mode?forum=wpdevelop

                                          can you add a new property in OCR library, so that the developers can tell the engine which direction the text was written in? (instead of auto-detecting it?)

                                          If often mis-classify the direction.

                                          p.s I didn't know where to post this, but since the library is in Windows.Media.Ocr namespace, i put it under "media"

                                          3 votes
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                                            0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
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