[FFmpeg-user] HEVC decoding of first frame
barsnick at gmx.net
Fri Oct 16 11:37:44 CEST 2015
On Thu, Oct 15, 2015 at 08:22:35 +0200, Christian Herglotz wrote:
> When timing the process I found that the decoding of the
> first frame always takes twice as long as the decoding of all the other
I'm not sure I consider the test you provide as valid.
a) Initializing a decoder has (some) overhead. That aligns your numbers
a bit more.
b) HEVC does not only consist of I-frames (unless you claim the
opposite of your content). Who says P- or B-frames are easier/faster to
decode than I-frames?
That's just the theory from me. Someone who knows the code could help
more, or someone who is willing to add the benchmarking macros into the
code and rebuild. :-)
Gruß nach Franken,
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