[FFmpeg-devel] [PATCH v2 1/2] libavcodec/mpegvideo_enc: fix multi-threaded motion estimation rounding for mpeg4

[Michael Niedermayer]

On Wed, May 08, 2024 at 05:19:49PM +0200, Ramiro Polla wrote:
> ff_init_me() was being called after ff_update_duplicate_context(),
> which caused the propagation of the initialization to other thread
> contexts to be delayed by one frame.
> 
> In the case of mpeg4 (or flipflop_rounding), this would make the
> hpel_put functions differ between the first thread (which would be
> correctly initialized) and the other threads (which would be stale
> from the previous frame).
> ---
>  libavcodec/mpegvideo_enc.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)

have you confirmed the actual used rounding matches after this
encoder & decoder side ?

if yes then this should be ok

thx

[...]

-- 
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Elect your leaders based on what they did after the last election, not
based on what they say before an election.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: not available
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20240509/13e8b6c0/attachment.sig>