Here is my script:

#!/bin/bash
 
#convert stuff to MPEG4 / 2ch AAC


for f in /movies_input/*
do
videoCodec=""
audioCodec=""
audioChannels=""
#echo "process $f"
videoCodec=$(mediainfo --Inform="Video;%Codec%" $f)
audioCodec=$(mediainfo --Inform="Audio;%Codec%" $f)
audioChannels=$(mediainfo --Inform="Audio;%Channels%" $f)
#mediainfo --Inform="Video;%Codec%" $f | while read line;
video_good="false"
audio_good="false"

if [[ $videoCodec == "V_MPEG4"* ]] ; then
    cli_video="-c:v copy "
    video_good="true"
fi

if [[ $audioCodec == "AAC" && $audioChannels == "2" ]] ; then
    cli_audio="-c:a copy "
    audio_good="true"
#       else
#   cli_audio="-c:a aac -ac 2 "
fi

if [[ $video_good="true" && $audio_good="true" ]] ; then
    echo "I'm going to execute:"
    echo ffmpeg -i $f $cli_video $cli_audio `basename "$f"`
fi

done
done

When I run this script, a file which has 6 channel AAC will run the "I'm going to execute:" code. When run a file which is DTS audio it will run the "I'm going to execute:" code.

Please help! thanks

I updated it a little bit, but I'm still not getting the results I should be getting:

#!/bin/bash
find "$1" -type f | while read filename
do

    videoCodec=$(ffprobe -v error -select_streams v:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 "$filename")
    audioCodec=$(ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -of default=noprint_wrappers=1:nokey=1 "$filename")
    audioChannels=$(ffprobe -v error -select_streams a:0 -show_entries stream=channels -of default=noprint_wrappers=1:nokey=1 "$filename")

    echo $videoCodec $audioCodec $audioChannels $filename

    if [ $videoCodec = "h264" ] && [ $audioCodec = "aac" ] && [ audioChannels = "2" ] ; then
        echo "Direct play capable"
    fi

done

I run this on a folder containing a file that meets all the if conditions ("h264 aac 2 ./Black.Mass.(2015)/Black.Mass.(2015).mp4") but do not get the "Direct play capable" echo.