Tiles support about libde265 HOT 8 CLOSED

Yes, this is one of the next features I'm going to implement.
Likely to be added still this February.

Dirk Farin

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Parallel tiles are now supported in the latest version from the repository.

Dirk Farin

from libde265.

tried to decode sequences with many tiles and many threads but either i got segmentation fault or program exit without result....

from libde265.

Could you please provide the stream(s) and command lines you are testing with?

from libde265.

Can you please send me one of those sequences, so that I can reproduce it
and check? A few frames should be sufficient
([email protected]).

There is a hard thread limit of 32 (a #define in threads.h) and some other
hard-coded limits.
Maybe you simply hit one of them.

Dirk

2014-02-21 16:03 GMT+01:00 ggeor [email protected]:

tried to decode sequences with many tiles and many threads but either i
got segmentation fault or program exit without result....

Reply to this email directly or view it on GitHubhttps://github.com//issues/30#issuecomment-35737740
.

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i am testing streams with either wpp or tiles enabled. everything fine with
wpp, but Tiles have the problems that i mentioned. I don't use the thread
limit of 32, everything more that -t 0 in the command line does not work. I
have encoded streams with HM and in the configuration file i edit the
values NumTileColumnsMinus1 and NumTileRowsMinus1. Everything else is
default.

for example:
./dec265 1088p25_pedestrian_tile6x3_20f.bin
nFrames decoded: 19 (1920x1080 @ 24.02 fps)

./dec265 -t 0 1088p25_pedestrian_tile6x3_20f.bin
nFrames decoded: 19 (1920x1080 @ 25.10 fps)

./dec265 -t 1 1088p25_pedestrian_tile6x3_20f.bin
Segmentation fault (core dumped)

./dec265 -t 2 1088p25_pedestrian_tile6x3_20f.bin

attached is a stream that failed to decode when using multiple threads for
multiple tiles

On Fri, Feb 21, 2014 at 5:47 PM, farindk [email protected] wrote:

Can you please send me one of those sequences, so that I can reproduce it
and check? A few frames should be sufficient
([email protected]).

There is a hard thread limit of 32 (a #define in threads.h) and some other
hard-coded limits.
Maybe you simply hit one of them.

Dirk

2014-02-21 16:03 GMT+01:00 ggeor [email protected]:

tried to decode sequences with many tiles and many threads but either i
got segmentation fault or program exit without result....

Reply to this email directly or view it on GitHub<
https://github.com/strukturag/libde265/issues/30#issuecomment-35737740>

.

Reply to this email directly or view it on GitHubhttps://github.com//issues/30#issuecomment-35742357
.

from libde265.

I tested with many streams encoded in the same way, but cannot reproduce this. Could you please send me one of your streams by email ([email protected]). Attachments do not work via github.

from libde265.

Fixed in commit "8dc6cbb262". It was a wrong index computation when there were more tile columns than rows.

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