Image issues

[malathan]

Just got my player and did some experimenting tonight. In terms of images, noticed issues with following:


PNG files do not play. Causes player during slide show to hange and not move foreward. Have to return to menu.
Progressive JPGs seem to only show first scan of image, meaning pixelated (barely tell what picture is)


Is there a new firmware update that resolves this yet?

[malathan]

Tried the beta firmware and still will not play png files and progressive scan jpgs still behave same (basically unviewable).

[aasoror]

Tried the beta firmware and still will not play png files and progressive scan jpgs still behave same (basically unviewable).

I think you might want to report that in the "Firmware update issues" sticky.

[tpublic]

Tried the beta firmware and still will not play png files and progressive scan jpgs still behave same (basically unviewable).

I agree that progressive JPEG images are busted, but I haven't run into any PNG issues, and I made bunches to test resolution when I first got my PBO. Can you run your non-functional files against PngInfo.exe in this package (http://gnuwin32.sourceforge.net/packages/pngutils.htm) and post the results here?

(Just download the Binaries archive and unzip only the bin/pnginfo.exe if none of the others look useful to you)

[malathan]

Here you go...

Image Width: 1500 Image Length: 2500
Bitdepth (Bits/Sample): 8
Channels (Samples/Pixel): 4
Pixel depth (Pixel Depth): 32
Colour Type (Photometric Interpretation): RGB with alpha channel
Image filter: Single row per byte filter
Interlacing: No interlacing
Compression Scheme: Deflate method 8, 32k window
Resolution: 8929, 8929 (pixels per meter)
FillOrder: msb-to-lsb
Byte Order: Network (Big Endian)
Number of text strings: 1 of 9
Creation Time (unknown compression): 2008:12:03 22:43:22

[tpublic]

I noticed your PNG had an alpha channel in it, so I whipped up a couple of test images (transparent background) to see what I could do. I ended up with exactly the same 8bit/4channel RGBA pixels you described.

At 1920x1080 it showed up fine, zoomed a bit slow, and panning was apparently non-functional. The background became black.

At 1500x2500 it took a bit longer to load, and it wanted to argue more about zoom ("Wait Zoom out finished") and panning eventually worked as I finished typing this.

Then I realized the PNGs I whipped up for overscan/overcrop testing I had never actually zoomed and panned around. 8bit/3channel RGB @ 1920x1080 PNG still zooms and pans terribly slow compared to the same size JPEG, so it wasn't just the extra alpha channel. And my PNGs were between 10-20KB, but the JPEGs were anywhere from 250-800KB.

PBO is obviously not optimized for PNG viewing. It seemed that I did better than you, though, because my images previewed and loaded to screen.