How to check if Rmvb is Anamorphic encoded?

[iwod]

Quote from Karl

I just wanted to mention a feature in RealVideo 9 that is not well known, and quite useful for those high bitrate encodes. Most of you know what anamorphic means. If not, check out http://gregl.net/videophile/anamorphic.htm

The upsize feature in producer is not well documented, but what happens if you specify a resize size that is larger than your input video size, producer will not actually resize the video, but add a flag to the bitstream, such that the player will stretch the video to the desired size. This stretching is a high quality interpolation done by the video card without extra CPU overhead.

So while a Mediainfo or Media Player opening up as 720P resolution by default doesn't mean the actual Rmvb files is encoded as 720P resolution. I am just wondering if there is anyway to check the default encoded resolution before it is upsized?

[roozhou]

Play it in mplayer (using drvc.dll as decoder). You can find something like "VO: [gl] 720x480 => 872x480 Planar YV12" in cmdline. Here 720x480 is the encoded resolution, and 872x480 is the upsized resolution.

You can post a feature request to MediaInfo developer, but I am afraid it will not be implemented in the following few years unless you pay him.