Could someone change this .sh Linux script into a usable .bat? (ffmpeg)

[RabblerouserGT]

I'd like to convert a shell script that worked beautifully in Ubuntu (HEAPS better audio quality than Xsplit gives and I'm guessing an even smaller overhead.

The ffmpeg settings should already be fine as they are. Unless converting to a .bat requires a restructuring it.

#! /bin/bash
 
# originaly from http://tinyurl.com/twitch-linux from taladan
# www.youtube.com/user/taladan
 
# gist created by brodul
 
INRES="1366x768"                                            # input resolution
#OUTRES="1024x640"                                           # Output resolution
OUTRES="1366x768"                                           # Output resolution
FPS="30"                                                    # target FPS
QUAL="fast"                                               # one of the many FFMPEG preset on (k)ubuntu found in /usr/share/ffmpeg
# If you have low bandwidth, put the qual preset on 'fast' (upload bandwidth)
# If you have medium bandwitch put it on normal to medium
 
# Write your key in a file named .twitch_key in your home directory
STREAM_KEY="live_STREAMKEYNOTPASTEDFOROBVIOUSREASONS"   # This is your streamkey generated by jtv/twitch found at: http://www.justin.tv/broadcast/adv_other
 
ffmpeg -f x11grab -s "$INRES" -r "$FPS" -i :0.0+0,0 -f alsa -ac 2 -i pulse -vcodec libx264 -vpre "$QUAL" -s $OUTRES -acodec libmp3lame -ar 44100 -threads 2 -qscale 5 -b 712000 -f flv "rtmp://live.justin.tv/app/$STREAM_KEY"

The place I originally got the shell script was in this wonderful video

[Baldrick]

You need to adjust the screengrab, see
https://ffmpeg.org/trac/ffmpeg/wiki/How%20to%20grab%20the%20desktop%20(screen)%20with%20FFmpeg

Test it first so it works.

[RabblerouserGT]

Funny. I truncated a lot of it and stopped using the variables at the top and opting for putting the stuff straight into script itself.

Then I get the x11grab error. Promptly returned here and you already have the answer. Thanks.

It looks like this now.

ffmpeg -f dshow -s "1366x768" -r "30" -i :0.0+0,0 -f alsa -ac 2 -i pulse -vcodec libx264 -vpre "fast" -s 1366x768 -acodec libmp3lame -ar 44100 -threads 2 -qscale 5 -b 712000 -f flv "rtmp://live.justin.tv/app/STREAMKEY"

Guessing a lot of those others things are going to be deleted since I'm getting "[dshow @ 02534100] Malformed dshow input string.
:0.0+0,0: Input/output error"

[Baldrick]

Try change the
-i :0.0+0,0
to
-i video="UScreenCapture"

[RabblerouserGT]

Now I'm getting "file for preset 'fast' not found"

[Baldrick]

I'm no ffmpeg expert. I usually just google the error messages. Like I found

Presets are now used with the -preset option, so simply replace -vpre with -preset.

[RabblerouserGT]

Yeah, I did that. It's streaming, but it's only streaming a black screen now.

[Baldrick]

Try output to a file and see if it works at all. Use
output.flv
instead of
"rtmp://live.justin.tv/app/STREAMKEY"

Play the flv with vlc.

[RabblerouserGT]

It's outputting just a big grey image.


Code so far:

ffmpeg -f dshow -i video="UScreenCapture":audio="SoundMAX Digital Audio" -r "24" -ac 2 -vcodec libx264 -preset fast -s 1366x768 -acodec libmp3lame -ar 44100 -threads 2 -qscale 5 -b 712000 -f flv "output.flv"

UScreenCapture seems to work when opening it in my Webcam testing software.

[RabblerouserGT]

I'm guessing I should head over to FFMpeg forums now that I have it at least outputting to a file/connecting to Twitch.tv.

[Baldrick]

I guess so. I'm out of ideas.

[RabblerouserGT]

Thanks a ton for the help. I'll do just that.