Universal Windows Platform

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  1. Support HLS version 7 so Enterprises can move to Fragmented MP4 backed streams

    Apple announced support for Fragmented MP4 backed HLS Streams under HLS version 7: https://developer.apple.com/videos/play/wwdc2016/504/ at WWDC 2016.

    We are looking to change the way our HLS streams are generated and Windows seems to be one of the few platforms that doesn't support playing these type of streams.

    This will also impede our ability to reuse these fMP4s for MPEG DASH in the future.

    Can you please add support for this?

    7 votes
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      working on it  ·  2 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
    • [UWP] Media Player playback cancellation through phone call or other media app

      I think I found a problem in Media Player. The problem happens on phone if media player is paused from another media app. In this case will be fired only MediaPlayer.PlaybackSession.PlaybackStateChanged event and it is not possible to detect whether app was paused through user or system. But if phone calls then will be simulated SystemMediaTransportControls pause button click (MediaPlayer.SystemMediaTransportControls.ButtonPressed event) and on phone call I can correctly stop my player and change some states. Why is it so? I think in first case must be fired ButtonPressed event too like it happens on phone call. Please add that capability.

      2 votes
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        0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
      • Add TimedTextStreamDescriptor to enable subtitles from MediaStreamSource

        The MediaPlayerElement supports various subtitle formats. But when we play a video file using MediaStreamSource, it is not possible to pass through the subtitle streams, because we cannot create MediaStreamDescriptors for them. So audio and video works, but subtitles don't work.

        Since subtitles are demuxed on-the-fly during playback, we cannot use TimedTextSource either, this would require the complete stream/file to be available during creation...

        This would be very helpful to make the MS initiated FFmpegInterop truly unviersally useful.

        2 votes
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          0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
        • MediaPlayer playback with CustomAudioEffect would be influence by UI thread

          I add a CustomAudioEffect which is EQ (I've also tried using official UWP sample's EchoEffect) to MediaPlayer.

          Although it seems CustomAudioEffect is running on Worker thread not UI thread, it seems media playback would also be impact when UI loading a bit heavier. I could hear my music become intermittently.

          Please fix this.

          1 vote
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            1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
          • Codecs for UWP Media Element

            uwp Media Element or MediaPlayerElement are fantastic with UI.But their codecs to play different kinds of audio and video files is very limited. Please integrate ffmpeg or vlc libraries by default in these xaml elements to make it easier for developers to build apps that run all kinds of video and audio files.
            Thankyou

            9 votes
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              0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
            • Support Vulkan GPU API on UWP

              Vulkan is an open 3D graphics and compute API, supported by many games ( https://en.wikipedia.org/wiki/List_of_games_with_Vulkan_support ) and game engines ( https://en.wikipedia.org/wiki/Vulkan_(API)#Game_engines ).

              5 votes
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                1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
              • Depth Textures D3D11_DSV_READ_ONLY_DEPTH API design introducing severe overhead

                In DX11 you can't read and write to the same texture, and that's fine, I can live with that.
                However the API was designed that it will introduce severe overhead in the following scenario.

                Say I have 100 objects to draw.
                These objects are semi-transparent (alpha-blending) so I need to draw them sorted by distance to camera (back to front) and not by state changes.
                Let's assume I have 50 objects which are Soft Particles (SP)
                And 50 objects that are triangle meshes (TM)

                Both SP and TM use alpha blending.
                SP don't do depth writes, but they do depth-tests…

                1 vote
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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…

                  14 votes
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                    1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                  • Background audio playback does not work on Build 15063 (UWP)

                    Background audio playback working on Build 14393 does not work on Build 15063.
                    It stops on the way.
                    I hope you can fix it.

                    [Sample Code]
                    Uri uri = new Uri("http://..."); // HLS
                    AdaptiveMediaSourceCreationResult result = await AdaptiveMediaSource.CreateFromUriAsync(uri);
                    if (result.Status == AdaptiveMediaSourceCreationStatus.Success)
                    {
                    mediaPlayerElement.SetMediaPlayer(new MediaPlayer());
                    mediaPlayerElement.MediaPlayer.Source = MediaSource.CreateFromAdaptiveMediaSource(result.MediaSource);
                    mediaPlayerElement.MediaPlayer.Play();
                    }

                    3 votes
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                      5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                    • Possibility to control what microphones use in Lumia 930 through the portal

                      Behind the portal, the user could control which microphones the Lumia would use to circumvent the bug affecting the Lumias 930 Brazilians.

                      1 vote
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                        0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                      • 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.

                        12 votes
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                          2 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                        • MediaPlayer fails opening .MKV from URL in Creators Update

                          We have a MediaPlayer that works with OneDrive MKV streams in previous versions but not in Creators Update.

                          If we put the MKV in another service or server the video is reproduced but the connection with OneDrive has been lost. Player raises "SourceNotSupported" error.

                          Please help.

                          1 vote
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                            5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →

                            Hi, we can’t get this to repro.

                            I just tried the following:
                            1) Upload MKV to OneDrive
                            2) One OneDrive, right-click the file, “Share” and choose to get a link
                            3) Attempt to use the resulting URL to play the file

                            Using MediaEngineTest and WMP, this fails on both CU and AU for me. And same result with an MP4.

                            Please share a proper repro else as we can’t reproduce.

                          • audio routing for media headset to speaker or vice versa (UWP)

                            allow developers to route audio from headset to speaker even if headset is connected, or provide a sample for that

                            1 vote
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                              0 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…

                              26 votes
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                                5 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                              • Add DXGI_FORMAT_R10G10B10A2_SNORM

                                There is already unsigned DXGI_FORMAT_R10G10B10A2_UNORM
                                and it would be great to have a signed version DXGI_FORMAT_R10G10B10A2_SNORM

                                I'm working on a motion blur effect as post process, for which I'm storing velocities into a render target.
                                As I need only 3 channels XYZ, without the 4th W, DXGI_FORMAT_R10G10B10A2_SNORM would be great for that.

                                However now I'm stuck using DXGI_FORMAT_R8G8B8A8_SNORM

                                1 vote
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                                  0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                • Timeline API

                                  <TimelineView Name="Timeline1" Length="05:00:00:0000" TimeCountDisplay="Timecode or AudioBeat or Frame">
                                  <AudioGroupe or ElementGroupe or ItemGroupe>
                                  <Composition Name="Composition01" Length="05:00:00:0000">

                                  https://cloud.githubusercontent.com/assets/12227024/26279716/6ee9460e-3d91-11e7-93f4-ef76da223a61.jpg
                                  <Track or Layer>
                                  <Clip or Source or Item TimeStart="00:01:00:0000" TimeEnd="00:01:00:0000" Id="audio01" URL="audio01.wave"> </Source>
                                  <Clip or Source TimeStart="00:01:00:0000" Id="audio02" URL="audio01.wave"> </Source>
                                  <Clip or Source TimeStart="00:01:00:0000" Id="audio03" URL="audio01.wave"> </Source>
                                  </Track or Layer>
                                  <Track or Layer>
                                  <Clip or Source TimeStart="00:01:00:0000" Id="audio04" URL="audio01.wave"> </Source>
                                  </Track or Layer>
                                  <Track or Layer>
                                  <Clip or Source TimeStart="00:01:00:0000" Id="audio05" URL="audio01.wave"> </Source>
                                  </Track or Layer>
                                  </Composition>
                                  </AudioGroupe>
                                  <VideoGroupe>
                                  <Composition Name="Composition01" Length="05:00:00:0000">
                                  <Track or Layer>
                                  <Clip or Source Length="00:01:00:0000" Id="videoo01" URL="video.mp4"> </Source>
                                  </Track or Layer>
                                  </Composition>
                                  </VideoGroupe>
                                  </TimelineView>

                                  https://cloud.githubusercontent.com/assets/12227024/26279584/0570b46c-3d8e-11e7-850a-839b153bf140.png
                                  https://cloud.githubusercontent.com/assets/12227024/26279583/05621088-3d8e-11e7-8604-ac8c28a28f82.png

                                  1 vote
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                                    0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                  • ASTC Textures

                                    What happened to ASTC texture format?
                                    Originally this was supposed to be included in DirectX, but later was scrapped.
                                    Are we going to see it eventually?

                                    Currently I'm using only 2 texture formats:
                                    BC1 - for small size (RGB only)
                                    BC7 - for good quality

                                    While BC7 is great, the BC1 quality is not really good, however we still need small size for textures, as my game is currently over 11 GB of texture data.

                                    From what I see ASTC would be great for that, have good quality but also small size, looks like it has lot of format options,…

                                    1 vote
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                                      0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                    • DXGI_SWAP_EFFECT_FLIP_DISCARD slow

                                      I've done some tests, and to my surprise DXGI_SWAP_EFFECT_FLIP_DISCARD instead of bringing performance improvements, it slows things down.

                                      Nvidia GeForce 650m GT, latest videos drivers (April/May 2017)
                                      Windows 10, latest updates (May 2017)
                                      DirectX 11 API

                                      I've made a simple application, all it did was just clear the backbuffer several times and presented the screen. In v-sync mode, I've cleared it more times, to get below 60 fps limit.

                                      Win32/WinAPI Results:

                                      windowed, sync=false
                                      DXGI_SWAP_EFFECT_DISCARD 850 fps
                                      DXGI_SWAP_EFFECT_FLIP_DISCARD 655 fps

                                      windowed, sync=true
                                      DXGI_SWAP_EFFECT_DISCARD 42 fps
                                      DXGI_SWAP_EFFECT_FLIP_DISCARD 34 fps

                                      fullscreen, sync=true
                                      DXGI_SWAP_EFFECT_DISCARD 16.9 fps
                                      DXGI_SWAP_EFFECT_FLIP_DISCARD 16.4 fps

                                      I've done the same tests…

                                      1 vote
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                                        0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                      • Add ability to use WASAPI loopback capture.

                                        Currently UWP can't open WASAPI output devices in capture mode due to COM restrictions. This means loopback auto capture is not supported.

                                        2 votes
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                                          0 comments  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
                                        • Allow other formats than PCM and float for a FrameOutputNode created with CreateFrameOutputNode of class AudioGraph

                                          Allow other formats than PCM and float for a FrameOutputNode created with CreateFrameOutputNode of class AudioGraph.

                                          Other Formats like MP3 or OGG would be nice. One Scenario is that of a shoutcast source for Internet Radio streaming. A shoutcast source transmits MP3 data via TCP to a shoutcast Server. If a FrameOutputNode would allow to get the encoded MP3 data then that data could easily transmitted via a TCP Stream. Currently I have to save a MP3 stream to a file and then read from the file and transmit it over TCP. This burden would be eliminated would MP3 Frames…

                                          3 votes
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                                            1 comment  ·  Audio/Graphics/Media playback  ·  Flag idea as inappropriate…  ·  Admin →
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