[Libav-user] FFmpeg version 3.1's avcodec_decode_video2 is slower than 3.0.5.

Hwangho Kim loveall0926 at gmail.com
Mon Jan 2 11:04:00 EET 2017

> 2017. 1. 2. 오후 5:42, Carl Eugen Hoyos <ceffmpeg at gmail.com> 작성:
> 2017-01-02 9:35 GMT+01:00 Hwangho Kim <loveall0926 at gmail.com>:
>> I’ll test it with MacOS but the project what I used the ffmpeg is on iOS
>> video player project so
>> if I run it in Mac OS it should work fine.
> Do you mean the regression you see is only reproducible on ios,
> not on macos?
> Carl Eugen
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No, I didn’t tested it with MacOS.

In my iOS, I’m using this ffmpeg to get the video frame and decoding from UDP and for this
I use avcodec_decode_video2 well under 3.0.5.

Only thing what I need to know is that what make this avcodec_decode_video2 get slowdown
for 3.1 not 3.0.5.

May testing it with ffmpeg -i output be meaningful for this case? In this case we couldn’t check
the delay correctly for avcodec_decode_video2 or avcodec_send_packet.


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