[FFmpeg-devel] [PATCH 1/4] dnxhddec: implement slice multithreading

Christophe Gisquet christophe.gisquet at gmail.com
Sat Sep 26 14:42:27 CEST 2015


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

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