[x264-devel] Possible bug with interlaced encoding

[Lauri Ahonen]

I'm having strange block artefacts with x264 builds later than 1913. I'm 
encoding an avs script with ProRes input as MOV file.

1) x264 CLI : "x264.exe" "x264_quicktime.avs" --interlaced --crf 16 
--no-dct-decimate --level 4.1 --preset slower --ref 3 –-nal-hrd vbr 
--vbv-bufsize 10000 --vbv-maxrate 20000 --direct=auto --threads auto 
--output "x264_quicktime.264"
2) Contents of the avs : QTInput("video_1080i-FINAL.mov", color = 2, 
quality = 100, audio = 0, mode = 0, raw = "yuyv", info = 0, dither = 0, 
vfw = "", gamma = -1, vfrFPS = 25)
3) Here are screengrabs of the artefacts, output is DXVA hardware 
decoded : http://koti.mbnet.fi/respekkt/x264/

I'm using Windows 7 x64 and 32-bit 8-bit ports retrieved from 
"http://x264.nl/" with Intel Core 2 Quad Q9550 / 8GB. I've tried 2019 
and 2074 builds. Problem reproduces with all of my computers, Q6600 and 
another Q9550.

Like I said, 1913 produces proper output without the artefacts. Any ideas?