On 24/01/2018 04:25, Li, Zhong wrote:
From: libav-devel [mailto:[email protected]] On Behalf
Of Luca Barbato Sent: Tuesday, January 23, 2018 5:45 PM To:
[email protected] Subject: Re: [libav-devel] qsv: How about
replace software parsers with MFXVideoDECODE_DecodeHeader
On 23/01/2018 06:05, Li, Zhong wrote:
avformat_find_stream_info() can provides some information and
sw_pix_fmt can be set as NV12. These parameters can be updated
after MFXVideoDECODE_DecodeHeader is called.
find_stream_info may decode frames using the software decoder to
extract the missing information (and it is one of those sore points
that sooner or later I'd like to completely remove from the
library).
lu
Exactly, it looks a litter weird but I also see some codec parser
provides few information (such as mjpeg parser) then it depends on
the decoding frame process. So before removing that, we need to make
sure the parsers are powerful? Please correct me if I am wrong.
You are perfectly correct, removing and replacing find_stream_info with
something less overkill is not exactly easy.
lu
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