Yoshiyuki Blade
15th June 2010, 10:36
Ok, so the Zune HD has been out for a while now, but I've seen little discussion about its alleged support for H.264: Baseline Profile + bframes.
I've tried to approach the problem in a few different ways, but have been unsuccessful in getting such a type of configuration to work. The first attempt was to encode a video clip at Main Profile and just disable the other options unsupported in Baseline Profile (--no-cabac and --weightp 0). I've also tried minimizing everything related to bframes, like setting bframes to 1, turning off weightb, b-pyramid and b-adapt.
Next, I tried modifying Windows' registry to make it visible as a normal device so I can just drag-and-drop it into the containing folder (by default, the Zune HD isn't visible to Windows and can only communicate via the Zune software). It just asks me if I wanted to convert it first due to being incompatible. After hitting "no," it throws me an error.
So either the claims for Baseline Profile + bframes is BS, or the device/software naively searches only for Baseline video. Since Baseline + bframes video encoded via x264 is still considered Main Profile, it may just detect that and automatically transcode it to WMV.
Anyway, purely Baseline Profile works just fine, but I would like to take advantage of bframes if the device can really use it. Anyone else have any experience with this?
I've tried to approach the problem in a few different ways, but have been unsuccessful in getting such a type of configuration to work. The first attempt was to encode a video clip at Main Profile and just disable the other options unsupported in Baseline Profile (--no-cabac and --weightp 0). I've also tried minimizing everything related to bframes, like setting bframes to 1, turning off weightb, b-pyramid and b-adapt.
Next, I tried modifying Windows' registry to make it visible as a normal device so I can just drag-and-drop it into the containing folder (by default, the Zune HD isn't visible to Windows and can only communicate via the Zune software). It just asks me if I wanted to convert it first due to being incompatible. After hitting "no," it throws me an error.
So either the claims for Baseline Profile + bframes is BS, or the device/software naively searches only for Baseline video. Since Baseline + bframes video encoded via x264 is still considered Main Profile, it may just detect that and automatically transcode it to WMV.
Anyway, purely Baseline Profile works just fine, but I would like to take advantage of bframes if the device can really use it. Anyone else have any experience with this?