Removed cli temporarily

Makefile

@@ -22,7 +22,7 @@ BUILD_DIR := "build"
 CMD_DIR := $(filter-out cmd/ffmpeg/README.md, $(wildcard cmd/ffmpeg/*))
 BUILD_TAG := ${DOCKER_REGISTRY}/go-media-${OS}-${ARCH}:${VERSION}
 
-all: clean cli cmds
+all: clean cmds
 
 cmds: $(CMD_DIR)
 

README.md

@@ -16,12 +16,46 @@ you are interested in, please see below "Contributing & Distribution" below.
 
 ## Requirements
 
-In order to build the examples, you'll need the library and header files for [FFmpeg 6](https://ffmpeg.org/download.html) installed.The `chromaprint` library is also required for fingerprinting audio files. On Macintosh with [homebrew](http://bew.sh/), for example:
+In order to build the examples, you'll need the library and header files 
+for [FFmpeg 6](https://ffmpeg.org/download.html) installed.The `chromaprint` library is also 
+required for fingerprinting audio files and SDL2 for the video player.
+
+### MacOS
+
+On Macintosh with [homebrew](http://bew.sh/), for example:
 
 ```bash
 brew install ffmpeg@6 chromaprint make
+brew link ffmpeg@6
+```
+
+### Debian
+
+If you're using Debian you may not be able to get the ffmpeg 6 unless you first of all add the debi-multimedia repository. 
+You can do this by adding the following line to your `/etc/apt/sources.list` file:
+
+```bash
+# Run commands as privileged user
+echo "deb https://www.deb-multimedia.org $(lsb_release -sc) main" >> /etc/apt/sources.list
+apt update -y -oAcquire::AllowInsecureRepositories=true
+apt install -y --force-yes deb-multimedia-keyring
+```
+
+Then you can proceed to install the ffmpeg 6 and the other dependencies:
+
+```bash
+# Run commands as privileged user
+apt install -y libavcodec-dev libavdevice-dev libavfilter-dev libavutil-dev libswscale-dev libswresample-dev
+apt install -y libchromaprint-dev
+apt install -y libsdl2-dev
 ```
 
+### Docker Container
+
+TODO
+
+## Examples
+
 There are some examples in the `cmd` folder of the main repository on how to use
 the package. The various make targets are:
 
@@ -43,8 +77,6 @@ cd go-media
 DOCKER_REGISTRY=ghcr.io/mutablelogic make docker
 ```
 
-## Examples
-
 There are a variety of types of object needed as part of media processing.
 All examples require a `Manager` to be created, which is used to enumerate all supported formats
 and open media files and byte streams.

cmd/examples/transcode/context.go

@@ -0,0 +1,33 @@
+package main
+
+import (
+	"context"
+	"os"
+	"os/signal"
+)
+
+///////////////////////////////////////////////////////////////////////////////
+// PUBLIC METHODS
+
+// ContextForSignal returns a context object which is cancelled when a signal
+// is received. It returns nil if no signal parameter is provided
+func ContextForSignal(signals ...os.Signal) context.Context {
+	if len(signals) == 0 {
+		return nil
+	}
+
+	ch := make(chan os.Signal, 1)
+	ctx, cancel := context.WithCancel(context.Background())
+
+	// Send message on channel when signal received
+	signal.Notify(ch, signals...)
+
+	// When any signal received, call cancel
+	go func() {
+		<-ch
+		cancel()
+	}()
+
+	// Return success
+	return ctx
+}

cmd/examples/transcode/main.go

@@ -0,0 +1,24 @@
+package main
+
+import (
+	"log"
+	"os"
+
+	// Packages
+	ffmpeg "github.com/mutablelogic/go-media/pkg/ffmpeg"
+)
+
+// This example encodes an audio an video stream to a file
+func main() {
+	// Check we have a filename
+	if len(os.Args) != 3 {
+		log.Fatal("Usage: transcode <in> <out>")
+	}
+
+	// Read the input
+	in, err := ffmpeg.Open(os.Args[1])
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer in.Close()
+}