first commit of sources

Signed-off-by: Conrad Zelck <git@simpel.cc>

.gitignore

+#Ignore
+*.exe
+*_stripped.au3
+__Stripped
+BAK
+Thumbs.db
+

README.md

+# mxf-track-swap
+
+Provide a mxf (tested only with xdcam hd 422 op1a including 8 audio tracks) and create a new one where you can swap the audio tracks. You can provide a stereo audio file too, to embed it into the new mxf.
+
+## Prerequisites
+
+To build your swapper yourself you need a compiled ffmpeg that must be embedded into your swapper. Customize the following code line:
+
+`FileInstall('K:\ffmpeg\bin\ffmpeg.exe', @TempDir & "\ffmpeg.exe", $FC_OVERWRITE)`
+
+## Manual
+
+Start the app and drag and drop a mxf file onto the gui. You can drag and drop an audio stereo file too.
+
+![Screenshot of the drag and drop gui](images/MXF-Track-Swap_drop-files.png)
+
+After pushing the "Next" button you have to do your routing.
+
+![Screenshot of the routing gui](images/MXF-Track-Swap_routing.png)
+
+The tracks of the source are provided on the left side, the tracks of the target on the bottom. Click the radios for setting the cross points.
+
+As we mostly use this tool for distributing audio descriptions for severeal use cases there are 3 preset buttons you can use too.
+
+- button `1+2 <-> 5+6`: swap tracks 1 and 2 with 5 and 6
+- button `ext. AD > 5+6`: embed an external audio description in tracks 5 and 6
+- button `ext. AD > 1+2`: embed an external audio description in tracks 1 and 2
+
+When you are ready with the routing push the button "Swap". A gui will show the progress of the swapping.
+
+![Screenshot of the progress gui](images/MXF-Track-Swap_muxing.png)
+
+The new mxf file will be created in `%temp%` folder. This folder will be opened automatically. The file naming is made with this rules:
+
+- video file name_
+- 1-routed source track_
+- 2-routed source track_
+- 3-routed source track_
+- 4-routed source track_
+- 5-routed source track_
+- 6-routed source track_
+- 7-routed source track_
+- 8-routed source track
+- .mxf
+
+The routing example in the image above would be named `Spurkennung_1-5_2-6_3-3_4-4_5-L_6-R_7-8_8-7.mxf`.
+
+## Known issues
+If you use only one track ot the external stereo wav file (e.g. "[R]") it breaks: "Filter channelsplit:FL has an unconnected outut".