docs: update readme

Author: silenium-dev

README.md

@@ -1,43 +1,23 @@
 # compose-av
 
-A kotlin library for av processing
-**Disclaimer**: This library is in very early stage of development, so it might not work as expected.
+A kotlin library for audio and video playback in Jetpack Compose.
+It is based on [libmpv](https://github.com/mpv-player/mpv) and
+[compose-gl](https://github.com/silenium-dev/compose-gl).
+**Disclaimer**: This library is in a very early stage of development, so it might not work as expected.
 
 ## Features
 
-### Core
-
-- [ ] Demuxing (🚧)
-- [ ] Muxing
-- [ ] Video decoding (🚧)
-- [ ] Video playback (🚧)
-- [ ] Video processing
-- [ ] Video encoding
-- [ ] Audio decoding
-- [ ] Audio playback
-- [ ] Audio processing
-- [ ] Audio encoding
-
-### Compose
-
 - [ ] Compose video player (🚧)
 - [ ] Compose audio player
 
 ## Platforms
 
-- [ ] Linux VAAPI (🚧)
-- [ ] Linux V4L2 M2M
-- [ ] Linux AMF
-- [ ] Linux NVDEC/NVENC
-- [ ] Linux QSV
-- [ ] Windows DXVA2
-- [ ] Windows D3D11
-- [ ] Windows QSV
-- [ ] Windows NVDEC/NVENC
-- [ ] Windows AMF
-- [ ] Android MediaCodec
+- [x] Linux
+- [ ] Windows
+- [ ] Android
 
-*Note: macOS/iOS support won't be implemented because of lack of development hardware.*
+*Note: macOS/iOS support won't be implemented because of lack of development hardware.
+If you want to contribute, feel free to do so.*
 
 ## Usage
 
@@ -52,18 +32,18 @@ repositories {
 }
 
 dependencies {
-    implementation("dev.silenium.compose:compose-av:0.1.0")
+    implementation("dev.silenium.compose.av:compose-av:0.1.0")
 }
 ```
 
-### Video player
-
-Demuxer is currently very experimental, so it might not work with files that can be played with other players.
+The library currently requires the `libmpv` shared library to be installed on the system.
+On Linux, you can install it using your package manager, e.g. on Ubuntu:
 
-```kotlin
-@Composable
-fun App() {
-    val file = remember { Path("path/to/video.mp4") }
-    VideoPlayer(file, modifier = Modifier.aspectRatio(16f / 9))
-}
+```shell
+sudo apt install libmpv2
 ```
+
+### Example
+
+See the [Main.kt](src/test/kotlin/dev/silenium/multimedia/compose/Main.kt) in the test sources
+on how to use the library.