Almost. You're missing the comma after "auth" : null } and you should probably format it like I have below. PV might still complain if you don't format it exactly like it expects.
It should look like this:
{
"search": {
"host": "http://10.0.0.10:9200",
"log": false,
"version": "7.x",
"auth": null
},
"auth": {
"password": null
},
"binaries": {
"ffmpeg": "/usr/bin/ffmpeg",
"ffprobe": "/usr/bin/ffprobe",