From: softworkz <softworkz@hotmail.com>

Those are always showing up on Patchwork when FATE tests are failing,
covering some possibly more useful information.

The volatile keyword was used as a workaround for an eight year old
clang version.

Signed-off-by: softworkz <softworkz@hotmail.com>

Submitted-As: https://master.gitmailbox.com/ffmpegdev/pull.20.v4.ffstaging.FFmpeg.1653750420780.ffmpegagent@gmail.com
In-Reply-To: https://master.gitmailbox.com/ffmpegdev/pull.20.ffstaging.FFmpeg.1642727870274.ffmpegagent@gmail.com
In-Reply-To: https://master.gitmailbox.com/ffmpegdev/pull.20.v2.ffstaging.FFmpeg.1642729284250.ffmpegagent@gmail.com
In-Reply-To: https://master.gitmailbox.com/ffmpegdev/pull.20.v3.ffstaging.FFmpeg.1642729686725.ffmpegagent@gmail.com