Asf file not seekable

In an encoding scenario, application can use the ASF media source as the source to convert into another format or for converting a higher bit-rate file to a lower bit-rate file without changing formats. The ASF media source must be used in the pipeline layer, that is, an application must use the Media Session to control the operation. This level of access allows the applications to get events while the Media Session is in progress. In addition, the ASF media source provides stream descriptors that represent each stream in the media content.

In order to create the ASF media source, the application must provide the source for which the source resolver creates the ASF media source. The source information must be provided by either specifying the URL of the source file or the byte stream that contains the media.

The process for creating the media source from a byte stream is similar. For more information about using this flag, see Using the Source Resolver. The file name extension must be ". During the object creation process, the source resolver looks up the list of scheme handlers and the byte stream handlers in the system registry and loads the closest matching handler that can parse the media content and also create the media source object underneath. Irrespective of the method used to create the media source URL and byte stream , the source resolver creates a byte stream and reads the contents of source media into the byte stream.

For code example about how to create a media source, see Using the Source Resolver. The source resolver queries for the capabilities of the underlying byte stream and determines the operations are allowed on the newly created media source. One of such capabilities is seeking.

Also, it supports playing a file even when it is getting downloaded. Double-clicking on the file starts the playback. This software has no spyware or ads. It can also be used as a video downloader for youtube videos, a video converter, and a graphic equalizer for music. This works well for ASF video format as well. PotPlayer is a widely used software for playing videos and music. This software is available only for Windows.

It boasts an inbuilt audio equalizer that ensures rich sound quality for ASF files playback. It supports playback of broken and incomplete AVI files. It works best for professionals who deal with a wide range of video formats and seek a lot of customization. This free video player is available for both WINdows and Mac. This video player can play broken AVI files, supports multiple media files, and allows screen capture, within the app.

It comes with some cool panels that allow you to tweak both your audio and video for the desired fit. It supports a subtitle archive, so if there is no subtitle file, you can find them in their archives.

MediaPlayerLite is an open-source video and audio player for Windows. This software is available for free and works best on Windows 7. Coming in a small package, its components can be easily installed, without making any complicated settings along the way. Feedback will be sent to Microsoft: By pressing the submit button, your feedback will be used to improve Microsoft products and services.

Privacy policy. There are two ways of creating an instance of the ASF file sink. This call creates an in-process file sink object and returns a pointer to the IMFMediaSink interface of the file sink. In this case, the file sink internally creates the byte stream. So I would have to buffer all the data that I received. It is impossible.

Seekability requirement is typically for a reason. You are working with a source which assumes a finite byte stream. You either adapt your code to imitate seekability, to extent possible or you need to switch to scheme handler and full featured network source as opposed to byte stream. When the byte stream carries progressive download style data, there is a good chance that seeking is only within small system format, metadata range and it is followed by sequential reads for the payload.

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