[FFmpeg-trac] #10554(ffmpeg:new): Potential memory leak when using HEVC during a concat.

[FFmpeg]

#10554: Potential memory leak when using HEVC during a concat.
-----------------------------------+--------------------------------------
             Reporter:  KyuVulpes  |                     Type:  defect
               Status:  new        |                 Priority:  normal
            Component:  ffmpeg     |                  Version:  git-master
             Keywords:             |               Blocked By:
             Blocking:             |  Reproduced by developer:  0
Analyzed by developer:  0          |
-----------------------------------+--------------------------------------
 Summary of the bug: Increasingly high memory usage when using video files
 encoded using HEVC, regardless of output video codec.
 How to reproduce:
 {{{
 % Have 2 files, one of them should be encoded in HEVC (I am using MKV file
 containers).
 % Put both of the files into a concat filter complex.
 ffmpeg version: 2023-09-04-git-f8503b4c33
 built on ...
 }}}

 The exact command I am using is ffmpeg.exe -i ./Test0.264.mkv -i
 ./Test1.mkv -filter_complex "[0][1]concat=2:a=5:v=1[out]" -map "[out]"
 -c:v h264_amf -c:a flac -b:a 320k -ar 48000 -b:v 30M ./Output.mkv -y
 -threads 24

 **However**, I have also tested this on an NVidia GTX 1650 GPU, Intel UHD
 Graphics iGPU, and lastly using CPU encoding. The CPU encoding is a lot
 slower in memory usage accumulation, but it still eats up memory. And only
 1 of the input files have to be HEVC and part of the concat in order for
 this to happen. If I use h264 only in the concat param, then it doesn't
 happen. So I know it's not something with how AMD, Intel, or NVidia have
 with their hardware acceleration, and I know it's not an issue on a single
 computer. It also occurs on both Linux and Windows, with my Linux system
 running n6.0.

 I've gone back some versions and using the latest one on gyan.dev's site
 for Windows. I haven't tried the git branch one on Linux.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/10554>
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