[FFmpeg-trac] #10852(swscale:new): sws_scale overflows buffer for some resolutions using ssse3 instructions
FFmpeg
trac at avcodec.org
Tue Feb 13 05:42:21 EET 2024
#10852: sws_scale overflows buffer for some resolutions using ssse3 instructions
------------------------------------+-----------------------------------
Reporter: Jerome | Owner: (none)
Type: defect | Status: new
Priority: important | Component: swscale
Version: git-master | Resolution:
Keywords: memory | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
------------------------------------+-----------------------------------
Comment (by Jerome):
Replying to [comment:5 Balling]:
> What I mean is that the default color convertion is buggy, no one should
use that. And it only affects yuv420p to bgr, not to rgb.
Ok, I found the flag `SWS_ACCURATE_RND`. With it, the memory issue is
gone. The issue is that it is at least 3x slower than the default color
conversion.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/10852#comment:7>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list