[FFmpeg-devel] Parallelization of FFmpeg

Michael Niedermayer michaelni at gmx.at
Mon Dec 29 20:41:30 CET 2014

On Mon, Dec 29, 2014 at 12:12:21PM -0500, David Ison wrote:
> To process multiple slices at the same time - would depend  on
> whether independent slices could be scaled without data dependency
> from other slices.
> If there is data dependency, then it would be more difficult.

it would be possible to scale multiple slices in parallel but in
some cases it will be neccessary to process a few lines twice to
handle the borders because computing the output for line i generally
needs a few input lines that are located before and after that line.
the exact number of lines depends on the filter length

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Those who are best at talking, realize last or never when they are wrong.
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