X51v Hardware Acceleration for wmv

[vikt3000]

Hi there, i'm new here but discovered this as the most knowledgable x51 users on the net. :)

I have a question regarding the x51v ability to play relatviely high resoloution up to 640x480 wmv files.

I installed Lennysh's L11 great rom running WM6.1 but despite liking all the features such as full sdhc support I could never get wmv files to play smoothly. Even wmv files at 512x384 could not play. This occurs with all media players, including WMP, TCPMP and coreplayer. Divx avis play flawlessly at high res. and frame rates.

I went back to Dell's WM5 A12 Rom, to check it out and Windows Media Player 10 in WM5 plays them flawlessly! Strangely Coreplayer and TCPMP still fail to play the wmv files and drops many frames.

So I decidied to stay with WM5 albiet using Windows Media Player to play them.

Does anyone know how to play higher resoultion wmv in wm6.1 or with coreplayer/tcpmp in WM5? I really don't feel like converting the files to DivX avi before playing them.

I have tried copying the older WM5 wmv9decoder2700G.dll & wmvdecoder.dll to WM6.1 Windows directory but it had no effect. In my opinion the hardware is capable, not only does the spec say the 2700g can decode up to 640x480 wmv files but the Media Player in WM5 actually does so very well.

Please help, I'd be very grateful!

[johnhu_2005]

That's interesting, never thought WM5 could play WMV better than WM6. You could try to sync the Axim and use Windows Media Player (On your PC) to transfer the video. This allows Windows Media Player to re-encode and compress the WMV into a PocketPc-friendly resolution and quality.

[vikt3000]

yeah, thanks for that, but reincoding is something i didn't want to do. Just wanted to be able to load up any reasonable desktop video at the X51v without reincoding.

But its really does seem that Windows media player in WM5 is playing wmv with full hardware acceleration. Even a 720x480 wmv at 30fps plays at around 80-90% of its full speed whilst Coreplayer drops nearly all frames, and with WM6 all players cannot play it.

Win Mobile 6 WMP doesn't seem to play WMVs with any hard acceleration at all, are the system overheads too much?

According to Coreplayer's manual it accesses external codecs for WMA and WMV, but H264 and and DivX are handled internally and they run like a dream. I'll try and find out why it fails to play WMVs in WM5 if its WMP can play them so well.

[makuu]

Have you tried to use my WM6.1 A09 rom? It plays 640x480 divx with no issues.

[emeraldgirl08]

Have you tried matching all settings (buffering, video driver settings, quality,etc) with both WM5 and WM6? I have a copy of an video file that is an WMV type. I'll load it and see how that goes today. That's a good question BTW. I have some files that work better on an old 2003SE than my 6.1.

[vikt3000]

hey Makuuu, I did indeed try out your rom, I tried all the WM6 based roms, but the new windows media player plays the same in all of them, very poorly, dropping maybe 70% frames. Coreplayer TCPMP still cannot play the wmv. DivX are decoded very easily on all roms I tried using TCPMP or coreplayer.

In terms of buffering emaraldgirl08 for Windows Media i'll have a look, but it doesn't seem like a buffering problem, it looks like its trying to decode using only the CPU, DivX files play fine even high resoultion ones. I tried copying the WM5 wmvdecoder.dll and wmv9decoder2700G.dll to replace the WM6 with no difference.

Coreplayer according to their manual is meant to use the system drivers to decode WMV or WMA, but it still fails to play acceptably even under Windows Mobile 5.

If anyone is running WM5 throw a wmv at it and see how well it plays, try the same in tcpmp/coreplayer and watch it struggle. A 640x480 wmv @ 30fps will cause problems for most modern PDAs, but the x51v on WMP on WM5 does really well, thats why I think this is the only situation where is running with hardware acceleration, why i have no idea :(