Add dev guide for RTSP.

#minor-release

PiperOrigin-RevId: 373173075

docs/_data/navigation.yml

@@ -59,6 +59,8 @@ en:
         url:    smoothstreaming.html
       - title:  Progressive
         url:    progressive.html
+      - title:  RTSP
+        url:    rtsp.html
   - title:      Advanced topics
     children:
       - title:  Digital rights management

docs/_page_fragments/supported-formats-rtsp.md

+ExoPlayer supports streaming both live and on demand RTSP. Listed below are the
+supported formats and network types.
+
+**Supported Formats**
+- H264
+- AAC (with ADTS bitstream)
+- AC3
+
+**Supported Network types**
+- RTP over UDP unicast (multicast is not supported).
+- Interleaved RTSP, RTP over RTSP using TCP.
+

docs/media-sources.md

@@ -15,6 +15,7 @@ instances of the following content `MediaSource` implementations:
 * `SsMediaSource` for [SmoothStreaming][].
 * `HlsMediaSource` for [HLS][].
 * `ProgressiveMediaSource` for [regular media files][].
+* `RtspMediaSource` for [RTSP][].
 
 `DefaultMediaSourceFactory` can also create more complex media sources depending
 on the properties of the corresponding media items. This is described in more

docs/supported-formats.md

@@ -41,6 +41,10 @@ and HDR video playback.
 
 {% include_relative _page_fragments/supported-formats-progressive.md %}
 
+## RTSP ##
+
+{% include_relative _page_fragments/supported-formats-rtsp.md %}
+
 ## Sample formats ##
 
 By default ExoPlayer uses Android's platform decoders. Hence the supported