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 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.