[FFmpeg-devel] [PATCH 1/4] dnxhddec: implement slice multithreading
Christophe Gisquet
christophe.gisquet at gmail.com
Sat Sep 26 14:42:27 CEST 2015
Hi,
2015-09-26 1:52 GMT+02:00 Michael Niedermayer <michaelni at gmx.at>:
> This segfaults with http://samples.ffmpeg.org/ffmpeg-bugs/trac/ticket2125/DNxHDtest2.mov
Patch reworked:
- Preallocate RowContext to avoid reloading it
- Use of init_thread_copy due to that
- Fix crashes due to mishandling of code around execute2
The speed of slice-threading is equivalent to frame-threading, which
makes the later less attractive. Several decoders forgo implementing
it.
--
Christophe
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