update readme

README.md

@@ -22,12 +22,16 @@ Inspired by [ffmpeg-concat](https://github.com/transitive-bullshit/ffmpeg-concat
 - Accepts custom HTML5 Canvas / Fabric.js JavaScript code for custom screens or dynamic overlays
 - Render custom GL shaders (for example from [shadertoy](https://www.shadertoy.com/))
 - Can output GIF
+- Preserve audio sources or mix multiple
+- Overlay transparent images or videos
+- Show different sub-clips for parts of a clips duration (B-roll)
 
 ## Use cases
 
 - Create a slideshow from a set of pictures with text overlay
 - Create a fast-paced trailer or promo video
 - Create a tutorial video with help text
+- Create news stories
 - Simply convert a video to a GIF
 - Resize video to any size or framerate and with automatic letterboxing/cropping (e.g. if you need to upload a video somewhere but the site complains `Video must be 1337x1000 30fps`)
 
@@ -119,7 +123,7 @@ Edit specs are JavaScript / JSON objects describing the whole edit operation wit
     },
   },
   audioFilePath,
-  keepSourceAudio,
+  keepSourceAudio: false,
   clips: [
     {
       transition,

examples/README.md

@@ -1,54 +1,52 @@
 # Examples
 
-## Ken Burns zoom slideshow
+## Image slideshow with Ken Burns zoom
 
 ![](https://github.com/mifi/gifs/raw/master/kenburns.gif)
 
 [kenBurns.json5](https://github.com/mifi/editly/blob/master/examples/kenBurns.json5)
 
-```bash
-editly kenBurns.json5
-```
-
 ## News title
 
 ![](https://github.com/mifi/gifs/raw/master/newsTitle.gif)
 
 [newsTitle.json5](https://github.com/mifi/editly/blob/master/examples/newsTitle.json5)
 
-```bash
-editly newsTitle.json5
-```
-
 ## Resize modes
 
 ![](https://github.com/mifi/gifs/raw/master/resizeHorizontal.gif)
 
 [resizeHorizontal.json5](https://github.com/mifi/editly/blob/master/examples/resizeHorizontal.json5)
 
-```bash
-editly resizeHorizontal.json5
-```
-
 ## Speed up / slow down with cutting
 
 ![](https://github.com/mifi/gifs/raw/master/speedTest.gif)
 
 [speedTest.json5](https://github.com/mifi/editly/blob/master/examples/speedTest.json5)
 
-```bash
-editly speedTest.json5
-```
-
 ## Title and subtitle
 
 ![](https://github.com/mifi/gifs/raw/master/subtitle.gif)
 
 [subtitle.json5](https://github.com/mifi/editly/blob/master/examples/subtitle.json5)
 
-```bash
-editly subtitle.json5
-```
+## Video overlays with alpha channel
+
+[alpha.json5](https://github.com/mifi/editly/blob/master/examples/alpha.json5)
+
+## Image overlays with alpha channel
+
+[imageOverlay.json5](https://github.com/mifi/editly/blob/master/examples/imageOverlay.json5)
+
+## Partial overlays (B-roll)
+
+[visibleFromUntil.json5](https://github.com/mifi/editly/blob/master/examples/visibleFromUntil.json5)
+
+## Audio layers
+
+- [audio1.json5](https://github.com/mifi/editly/blob/master/examples/audio1.json5)
+- [audio2.json5](https://github.com/mifi/editly/blob/master/examples/audio2.json5)
+
 
 ## Custom HTML5 canvas Javascript
 
@@ -56,7 +54,6 @@ editly subtitle.json5
 
 [customCanvas.js](https://github.com/mifi/editly/blob/master/examples/customCanvas.js)
 
-
 ```bash
 node customCanvas.js
 ```
@@ -67,11 +64,11 @@ node customCanvas.js
 
 [customFabric.js](https://github.com/mifi/editly/blob/master/examples/customFabric.js)
 
-
 ```bash
 node customFabric.js
 ```
 
+
 ## LosslessCut tutorial
 
 [This video](https://www.youtube.com/watch?v=pYHMxXy05Jg) was created with [losslesscut.json5](https://github.com/mifi/editly/blob/master/examples/losslesscut.json5)