2010-06-22, 17:52
I'm apologise if this and is a known issue. I have spent a couple of months searching and waiting for someone else to post but no luck. xbmc+crystalhd is awesome and even if it can't be fixed I will be happy for some insight as to the cause.
I download the HD TV shows from the BBC and a few months ago they changed the way they encode them. My appleTV+crystalHD now has problems rendering them, they seem stretched (missing the bottom 20-30%) they also have what looks like interlaced lines over the stop 20% of the screen.
If I switch to software they render fine but obviously I get dropped frames with it being HD.
Using deductive reasoning I think the issue could be something to do with the resolution, the BBC seemed to change from 1280x720 to 1280x724 media info is below.
Also here is a photo of the TV screen (they look like scan-lines captured by the camera but they are not) http://imgur.com/dTqnl
[11:26:15] warren@burt:/mnt/raid/media/_tv/BBC/HD $ mediainfo Wonders_of_the_Solar_System_-_5._Aliens_b00rz5ys_default.mp4
General
Complete name : Wonders_of_the_Solar_System_-_5._Aliens_b00rz5ys_default.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.16 GiB
Duration : 59mn 12s
Overall bit rate : 2 799 Kbps
Writing application : Lavf52.55.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 59mn 12s
Bit rate mode : Variable
Bit rate : 2 699 Kbps
Width : 1 280 pixels
Height : 724 pixels
Original height : 720 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 25.000 fps
Minimum frame rate : 12.500 fps
Maximum frame rate : 50.000 fps
Standard : PAL
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.116
Stream size : 1.12 GiB (96%)
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : Yes
Format settings, PS : No
Codec ID : 40
Duration : 59mn 12s
Bit rate mode : Variable
Bit rate : 96.0 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Stream size : 40.1 MiB (3%)
I download the HD TV shows from the BBC and a few months ago they changed the way they encode them. My appleTV+crystalHD now has problems rendering them, they seem stretched (missing the bottom 20-30%) they also have what looks like interlaced lines over the stop 20% of the screen.
If I switch to software they render fine but obviously I get dropped frames with it being HD.
Using deductive reasoning I think the issue could be something to do with the resolution, the BBC seemed to change from 1280x720 to 1280x724 media info is below.
Also here is a photo of the TV screen (they look like scan-lines captured by the camera but they are not) http://imgur.com/dTqnl
[11:26:15] warren@burt:/mnt/raid/media/_tv/BBC/HD $ mediainfo Wonders_of_the_Solar_System_-_5._Aliens_b00rz5ys_default.mp4
General
Complete name : Wonders_of_the_Solar_System_-_5._Aliens_b00rz5ys_default.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.16 GiB
Duration : 59mn 12s
Overall bit rate : 2 799 Kbps
Writing application : Lavf52.55.0
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : [email protected]
Format settings, CABAC : Yes
Format settings, ReFrames : 5 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 59mn 12s
Bit rate mode : Variable
Bit rate : 2 699 Kbps
Width : 1 280 pixels
Height : 724 pixels
Original height : 720 pixels
Display aspect ratio : 16:9
Original display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 25.000 fps
Minimum frame rate : 12.500 fps
Maximum frame rate : 50.000 fps
Standard : PAL
Resolution : 8 bits
Colorimetry : 4:2:0
Scan type : Progressive
Bits/(Pixel*Frame) : 0.116
Stream size : 1.12 GiB (96%)
Audio
ID : 2
Format : AAC
Format/Info : Advanced Audio Codec
Format version : Version 4
Format profile : LC
Format settings, SBR : Yes
Format settings, PS : No
Codec ID : 40
Duration : 59mn 12s
Bit rate mode : Variable
Bit rate : 96.0 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 48.0 KHz
Stream size : 40.1 MiB (3%)