[Ffmpeg-devel] Bug in snow revision 1.50 - broken lossless mode

[Yartrebo]

I've got lossless working on the identity transform (removed dwt/idwt
for lossless), and the results are nice.

> size    name
> 5808338 temp_speak_up_1.avi
> 5806786 temp_speak_up_2.avi
> 5802532 temp_speak_up_3.avi
> 5802568 temp_speak_up_4.avi
> 5800562 temp_speak_up_5.avi

turns out I compressed this with broken 9/7, so no good for comparison.

> 3567262 temp1.avi
> 3565508 temp2.avi
> 3563214 temp3.avi
> 3557608 temp4.avi
> 3532662 temp5.avi

5512428 temp_speak_up_6.avi

> 2619304 temp_gummi_1.avi
> 2619496 temp_gummi_2.avi
> 2620204 temp_gummi_3.avi
> 2617298 temp_gummi_4.avi
> 2553554 temp_gummi_5.avi

2475076temp_gummi_6.avi


This patch will take all of three lines (2 in encode_frame, 1 in
decode_frame).

Robert