Transcoding custom file type to mpeg-4

1
votes

I have a custom video file which consists of a custom header followed by UYVY type YUV format. The header tags contain special information regarding the location of the picture, so I need to preserve them.

I am currently converting the UYVY to YUY2 in order to use Microsoft Media Foundation H.264 encoder to create mpeg-4 files, however I can not figure out how to preserve the metadata.

My question is how do I preserve the custom metadata into newly encoded mp4 file using the Microsoft Media Foundation? The IPropertyStore talks about using a custom XML file to describe how to handle the custom metadata, but I can't find any examples of how to do this.

Thanks!

1
metadatah.264mpeg-4ms-media-foundation
What metadata is it? Are you talking about the transparency per picture ? or is it more like Author and album like data? Does it vary per picture? (is it meant to be for everypicture?) or is this for the whole video? – Dipan Mehta

1 Answers

1
votes

If you are referring to 32 bit ARGB with Alpha plane with transparency preserved, i am afraid - this cannot be done by any conventional MPEG coded.

Your best bet is, to use MPEG 4 "Object video" - understand, this is not normal MPEG4 or DivX, but - this is object video. There is a reasonable work involved in this.

Look at MoMuSys codec and this link for more details.

Refine your question if this is not what you intended.

EDIT: Only for the purpose of Metadata if it is similar to ID3 tags in MP3, there is a mechanism available in MP4 file format.

This link : http://www.semanticmetadata.net/2008/03/07/metadata-for-the-mp4-container/ shows some tools that might help.

Alternativly - XMP (http://en.wikipedia.org/wiki/Extensible_Metadata_Platform) is also said to be usable under MP4 fileformat.

MP4 file format can very well handle H.264 encoding.