[FFmpeg-trac] #8491(undetermined:new): Memory utilization increase with mp4 muxing
FFmpeg
trac at avcodec.org
Tue Jan 21 12:27:31 EET 2020
#8491: Memory utilization increase with mp4 muxing
-------------------------------------+-------------------------------------
Reporter: olpipi | Type: defect
Status: new | Priority: normal
Component: | Version: git-
undetermined | master
Keywords: memory mux | Blocked By:
mp4 |
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
I want to mux h264 stream into mp4 container. Memory usage of ffmpeg
process increases infinitely over time .
For example, I tried to mux 1920x1080 stream repeatedly many times into
one output file. Rate of muxing was ~26000 fps. Memory utilization
increased by 200MB in 90 sec.
See chart in attachments (1920x1080, 60 fps, 6hrs, memory utilization
increased by 80MB).
If I try to mux into flv container (-f flv "out.flv"), I don't observe
this issue.
How to reproduce:
{{{
% ffmpeg -i test.h264 -c:v copy -f mp4 "out.mp4"
}}}
I measure memory usage with Windows Task Manager and with Performance
Monitor.
ffmpeg-20200115-0dc0837 for Windows (nightly build)
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8491>
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