update readme

README.md

@@ -47,7 +47,7 @@ Check the [releases](https://github.com/ffplayout/ffplayout/releases/latest) for
 - image source (will loop until out duration is reached)
 - extra audio source, has priority over audio from video (experimental *)
 - [multiple audio tracks](/docs/multi_audio.md) (experimental *)
-- stream copy mode (experimental *)
+- [Stream Copy](/docs/stream_copy.md) mode (experimental *)
 - [custom filters](/docs/custom_filters.md) globally in config, or in playlist for specific clips
 - import playlist from text or m3u file, with CLI or frontend
 - audio only, for radio mode (experimental *)

docs/README.md

@@ -40,3 +40,7 @@ Use of remote sources, like https://example.org/video.mp4
 ### **[ffplayout API](/docs/api.md)**
 
 Control the engine, playlist and config with a ~REST API
+
+### **[Stream Copy](/docs/stream_copy.md)**
+
+Copy audio and or video stream

docs/stream_copy.md

@@ -0,0 +1,11 @@
+### Stream Copy
+
+ffplayout supports a stream copy mode since v0.20.0. A separate copy mode for video and audio is possible. This mode uses less CPU and RAM, but has some drawbacks:
+
+- All files must have exactly the same resolution, color depth, audio channels and kHz.
+- All files must use the same codecs and settings.
+- The video and audio lines of a file must be the same length.
+- The codecs and A/V settings must be supported by mpegts and the output destination.
+- If the output mode is HLS, the time delta will increase over time, so the error threshold should be high enough to catch this.
+
+**This mode is experimental and will not have the same stability as the stream mode.**