Wm asf reader raw video 2

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A small package that contains the powerful ASF / MP42 Microsoft High-Speed MPEG-4 V1/2/3 Codec you might need for encoding processes

Advanced Systems Format (also known as ASF and formerly entitled Advanced Streaming or Active Streaming format) provides you with an extensible multimedia file format hosting joint digital data from Microsoft. Its main goal is to support competent playback from various devices such as digital media servers, HTTP servers or local storage. Furthermore, the container file must a single composition to be presented over a broad array of bandwidths.

Only demanding several seconds of attention

ASF Codec (MPEG-4 V1/2/3) helps you deploy Microsoft’s branded codec for ASF / MP42 High-Speed MPEG-4 V1/2/3. It is intended mostly for Microsoft’s Windows XP; however, you can install it on newer operating systems if you want to make use of its capabilities.

The deploying process consists of unpacking the provided ZIP archive, right-clicking on the MPG4VKI.inf file and choosing the ‘Install’ option.

Make sure it is properly deployed

Checking whether you already have the codec can be done by accessing the Sounds and Audio Devices Properties within the Control Panel under the Hardware tab section’s Video Codecs area. Clicking on the Properties tab reveals the installed codecs. A similar process can be done in order to verify the audio codec’s installation status.

Does not damage your system even if outdated

While this is a sure-to-work method to confirm the codec installation, you can always go for Sherlock, the codec detective software. During the installation, you may be prompted of the unsigned state of the driver – as this doesn’t affect your system files, you can choose to continue the operation. If the system notifies you that you are trying to install an older version of the codec, make sure you keep the newer iteration that you already have.

To end with

All in all, ASF Codec (MPEG-4 V1/2/3) is the codec you are looking for to use whenever you want to get ASF (WMA or WMV) from your encoding processes. It allows you to create the ASF digital media presentation file format for your audio and video clips to be wrapped in. With ASF being your targeted file container, this codec can be the right choice for the job.

I can use MP4Box to extract the h264 track from a mov file:

How can i do it by ffmpeg?

I’ve try with these options but none acts like MP4Box.

1 Answer 1

Just remove -f rawvideo from your command line,

Since I’m learning this is my viewpoint:

There is no need to specify a format, you’re already telling ffmpeg the specified format is raw, here:

Not the answer you’re looking for? Browse other questions tagged video ffmpeg or ask your own question.

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