Problems with transform filter on Hight-Resolution Video

[shiming413]

When trying use transform filter on a 2560x1536 vido, the video runs ok in the fist couple of seconds and then gets stuck for around 6 seconds before it becomes ok again. However, it has no problem if i play the transform filter on a 1080P video. Seems like it has a threshould or a max size limitation when applying the transform. I tried on many different computers, some of which has powerful cpu and graphic card, so shouldn't be the problem of the hardware. Anyone knows the reason?

Btw, the message of this problem shows as follows:

ain debug: SOURCE sz 2048x1536, of (1,1), vsz 2048x1536, 4cc J420, sar 1:1, msk r0x0 g0x0 b0x0
main debug: CROPPED sz 2048x1536, of (1,1), vsz 2048x1536, 4cc J420, sar 1:1, msk r0x0 g0x0 b0x0
main debug: picture might be displayed late (missing 6 ms)
main debug: picture might be displayed late (missing 10 ms)
main warning: picture is too late to be displayed (missing 58 ms)
main debug: picture might be displayed late (missing 8 ms)
main warning: picture is too late to be displayed (missing 22 ms)
main warning: picture is too late to be displayed (missing 23 ms)
main warning: picture is too late to be displayed (missing 33 ms)
main debug: picture might be displayed late (missing 2 ms)
main debug: picture might be displayed late (missing 7 ms)
main warning: picture is too late to be displayed (missing 45 ms)
main debug: picture might be displayed late (missing 1 ms)
main debug: picture might be displayed late (missing 5 ms)
main debug: picture might be displayed late (missing 17 ms)
main warning: picture is too late to be displayed (missing 53 ms)
main debug: picture might be displayed late (missing 3 ms)
main debug: picture might be displayed late (missing 17 ms)
main warning: picture is too late to be displayed (missing 20 ms)
main debug: auto hiding mouse cursor
main debug: picture might be displayed late (missing 2 ms)
main debug: picture might be displayed late (missing 16 ms)
main debug: picture might be displayed late (missing 19 ms)
main warning: picture is too late to be displayed (missing 32 ms)
main debug: picture might be displayed late (missing 14 ms)
main debug: picture might be displayed late (missing 17 ms)
main warning: picture is too late to be displayed (missing 30 ms)
main debug: picture might be displayed late (missing 1 ms)
main debug: picture might be displayed late (missing 13 ms)
main warning: picture is too late to be displayed (missing 29 ms)
main debug: picture might be displayed late (missing 0 ms)
main debug: picture might be displayed late (missing 12 ms)
main warning: picture is too late to be displayed (missing 28 ms)
main debug: picture might be displayed late (missing 10 ms)
main warning: picture is too late to be displayed (missing 25 ms)
main warning: picture is too late to be displayed (missing 134 ms)
main warning: picture is too late to be displayed (missing 84 ms)
main warning: picture is too late to be displayed (missing 33 ms)
main warning: picture is too late to be displayed (missing 5349 ms)
main warning: picture is too late to be displayed (missing 5299 ms)
main warning: picture is too late to be displayed (missing 5249 ms)
main warning: picture is too late to be displayed (missing 5316 ms)
main warning: picture is too late to be displayed (missing 5268 ms)
main warning: picture is too late to be displayed (missing 5218 ms)
avcodec error: more than 5 seconds of late video -> dropping frame (computer too slow ?)
main warning: picture is too late to be displayed (missing 574 ms)
main warning: picture is too late to be displayed (missing 541 ms)

[Rémi Denis-Courmont]

Transform is a bit slow in VLC 2.0. You might be better off with VLC 2.1.

In any case, transform on HD is always going to be slow (until someone implements some kind of hardware acceleration).

[shiming413]

Thanks for your reply!
I did tried it on 2.0.1, 2.0.2 and 2.0.3.. Same problem appeared. I m bit confused about this problem, since it runs perfectly fine at the beginning of applying transform filter. Even it got stuck, you can still play with the transform degrees and rotation on the frozen video. Anywhere allocate memory for the transformation? does it help if we enlarge the memory allocation?