MeidaFoundation情報収集

DirectShow後継の動画・音声フレームワーク。

sampleのありか

Windows-classic-samples/Samples/Win7Samples/multimedia/mediafoundation at main · microsoft/Windows-classic-samples

This repo contains samples that demonstrate the API used in Windows classic desktop applications. - microsoft/Windows-classic-samples

https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation

Windows-classic-samples/Samples/Win7Samples/multimedia/mediafoundation at main · microsoft/Windows-classic-samples

Win7Samplesに気付かず・・・はじめの一歩ここから始めるのがよい。

Audio/Video Playback

How to Play Media Files with Media Foundation

Media Session Playback Example。ソースあり

MediaSessionPlaybackExampleで動画を開くとこんな感じのTopologyになる。動画(MediaSource)--->video-> EVR(MediaSink) | +->audio-> SAR(MediaSink)

MediaSourceとMediaSinkを作ってつなぐのがMediaFoundationの基本概念。 CMakeでビルドできるように取りまとめた。

MediaFoundationSample/MediaSessionPlaybackExample at master · ousttrue/MediaFoundationSample

Contribute to ousttrue/MediaFoundationSample development by creating an account on GitHub.

https://github.com/ousttrue/MediaFoundationSample/tree/master/MediaSessionPlaybackExample

MediaFoundationSample/MediaSessionPlaybackExample at master · ousttrue/MediaFoundationSample

構成 DirectShowとは違う感じのところがある。

IMFMediaSourceがストレージとDemuxerを内包しているなので途中で枝分かれするというよりも、IMFMediaStream -> IMFTransform -> IMFStreamSinkというラインが複数ある感じになる。

+---------------+ |IMFMediaSource | +---------------+ |+-------------+| ||IMFByteStream|| |+-------------+| VideoRenderer | | |Read | +------------+ | | v | (compressed) decoder (uncompressed) |IMFMediaSink| | | +--------------+ IMFSample +------------+ IMFSample +-------------+| | | |IMFMediaStream|---------->|IMFTransform|---------->|IMFStreamSink|+ | v +--------------+ +------------+ +-------------+ | +--------------+ +------------+ +-------------+ | |IMFMediaStream|------------->|IMFTransform|---------->|IMFStreamSink|+ | +--------------+ IMFSample +------------+ IMFSample +-------------+| +---------------+ (compressed) (uncompressed) |IMFMediaSink| +------------+ AudioRendrer

TopoEdit

https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation/topoedit http://blogs.microsoft.co.il/pavely/2011/03/11/introduction-to-topoedit/

いろんなAPI MediaSource(入力)とMediaSink(出力)を駆動する高レベルのAPIが複数ある。 [Obsolete]古のPlayer

IMFPMediaPlayer

Important Deprecated. This API may be removed from future releases of Windows. Applications should use the Media Session for playback.

https://github.com/Microsoft/Windows-classic-samples/blob/master/Samples/Win7Samples/multimedia/mediafoundation/SimplePlay https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation/MFPlayer2

[Desktop]再生向けのSession Player向けのAPI。UWPには無い。

Media Session http://blog.firefly-vj.net/2009/06/01/mediafoundation-play-with-mediasession.html Media Foundationの再生サンプルの状態管理をMSMで行う

Topology

Topologies

変換向けのReader Clockが必要ない用途に向いている。各フレームを最速で処理したい場合や、MediaSourceがWebCamである場合など。

Source Reader Using the Source Reader to Process Media Data The Source Reader does not support reverse playback, even if the media source does. MediaFoundationでID3D11Texture2Dに動画のフレームを読み込む覚書β MediaFoundation — 動画の読み込み

[Desktop][UWP]WinRTのEngine Windows.Mediaのバックエンド？。UWPとDesktopの両方で使える。

Supported Microsoft Media Foundation APIs for Windows Phone 8 Walkthrough: Using Microsoft Media Foundation for Windows Phone 8

using a MediaElement control is a much quicker and easier way You also must use MF if you want to use video as a texture on 3-D geometry

DXVAが簡単にできる。むしろUWPではDXVAしかない様子。情報少ないけど。

Media engine native C++ video playback sample

MediaSource

Media Sources

Writing a Custom Media Source Case Study: MPEG-1 Media Source

https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation/mpeg1source https://github.com/Microsoft/Windows-classic-samples/tree/master/Samples/Win7Samples/multimedia/mediafoundation/wavsource

Source Resolver

Using the Source Resolver

URL