Full HD video files plays slowly in DOS version of MPlayer under DOSBox-X

[EgorKuzevanov]

Describe the bug

In the DOS version of MPlayer under DOSBox-X, H.264 video files in MP4, MKV and MPEG-TS containers with a resolution of 1920x1080 (Full HD) plays slowly.

Steps to reproduce the behaviour

1. Download the DOS version of MPlayer from the Old-DOS website: http://old-dos.ru/dl.php?id=8713
2. Unpack the downloaded archive into a folder that will later be mounted in DOSBox-X as a C: drive.
3. Launch DOSBox-X and mount the folder with the unpacked DOS version of MPlayer and any Full HD video files as a C: drive.
4. Run the following command:
   MPLAYER.EXE -screenw 640 -screenh 480 -fs <path_to_any_Full_HD_video_file>
5. See slow playback.

Expected behavior

Fast playback of Full HD video files in the DOS version of MPlayer under DOSBox-X.

What operating system(s) this bug have occurred on?

Windows 10 LTSB 2016 (x64)

What version(s) of DOSBox-X have this bug?

DOSBox-X 2024.07.01 MinGW LowEnd SDL2 (x86), commit 214c048

Used configuration

The DOSBox-X emulator is allocated 512 MB of RAM. SDL output type is "surface".

Output log

No response

Additional information

No response

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