[FFmpeg-devel] [PATCH] h264_slice: Copy the value of x264_build before calling h264_slice_header_init during thread init
Derek Buitenhuis
derek.buitenhuis at gmail.com
Mon Oct 8 21:45:51 EEST 2018
On 08/10/2018 19:23, Carl Eugen Hoyos wrote:
> I cannot reproduce ticket #7475 (it says "framerate num 30 den 1"
> no matter how many threads I use, tested with up to 8), and - more
> related to this patch - the sample from ticket #7475 reaches neither
> line 358 nor line 400 in h264_slice.c here when running the command
> shown in the ticket.
>
> $ md5sum crew_cif_timecode-2.h264
> 43fbbb4ead1af31ed19dbb6582761d73 crew_cif_timecode-2.h264
>
> Do you know what I am doing wrong?
Your MD5 matches mine.
Running on Linux (vanilla Debian unstable), using the patch from the trac entry:
$ ffmpeg -threads 1 -i crew_cif_timecode-2.h264 -f null -
I get this: https://pastebin.com/9TLB0ewm
And with:
$ ffmpeg -threads 2 -i crew_cif_timecode-2.h264 -f null -
I get this: https://pastebin.com/upaJUXUA
Any value above 1 should be enough to reproduce.
It's possible it may only present itself on Linux (if you are on Windows).
- Derek
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