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update readme

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aler9 4 years ago
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      README.md

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README.md
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@ -85,6 +85,7 @@ Features:
* [Redirect to another server](#redirect-to-another-server) * [Redirect to another server](#redirect-to-another-server)
* [Fallback stream](#fallback-stream) * [Fallback stream](#fallback-stream)
* [Corrupted frames](#corrupted-frames) * [Corrupted frames](#corrupted-frames)
* [Decrease latency](#decrease-latency)
* [RTMP protocol](#rtmp-protocol) * [RTMP protocol](#rtmp-protocol)
* [General usage](#general-usage-1) * [General usage](#general-usage-1)
* [Encryption](#encryption-1) * [Encryption](#encryption-1)
@ -93,7 +94,7 @@ Features:
* [Browser support](#browser-support) * [Browser support](#browser-support)
* [Embedding](#embedding) * [Embedding](#embedding)
* [Low-Latency variant](#low-latency-variant) * [Low-Latency variant](#low-latency-variant)
* [Decreasing latency](#decreasing-latency) * [Decrease latency](#decrease-latency-1)
* [WebRTC protocol](#webrtc-protocol) * [WebRTC protocol](#webrtc-protocol)
* [General usage](#general-usage-3) * [General usage](#general-usage-3)
* [Usage inside a container or behind a NAT](#usage-inside-a-container-or-behind-a-nat) * [Usage inside a container or behind a NAT](#usage-inside-a-container-or-behind-a-nat)
@ -180,7 +181,7 @@ Please keep in mind that the Docker image doesn't include _FFmpeg_. if you need
2. Open the stream. For instance, you can open the stream with _VLC_: 2. Open the stream. For instance, you can open the stream with _VLC_:
``` ```
vlc rtsp://localhost:8554/mystream vlc --network-caching=50 rtsp://localhost:8554/mystream
``` ```
or _GStreamer_: or _GStreamer_:
@ -905,6 +906,14 @@ In some scenarios, when reading RTSP from the server, decoded frames can be corr
* The stream throughput is too big to be handled by the network between server and readers. Upgrade the network or decrease the stream bitrate by re-encoding it. * The stream throughput is too big to be handled by the network between server and readers. Upgrade the network or decrease the stream bitrate by re-encoding it.
### Decrease latency
The RTSP protocol doesn't introduce any latency by itself. Latency is usually introduced by clients, that put frames in a buffer to compensate network fluctuations. In order to decrease latency, the best way consists in tuning the client. For instance, latency can be decreased with VLC by decreasing the `Network caching` parameter, that is available in the `Open network stream` dialog or alternatively ca be set with the command line:
```
vlc --network-caching=50 rtsp://...
```
## RTMP protocol ## RTMP protocol
### General usage ### General usage
@ -1022,7 +1031,7 @@ If the stream is not shown correctly, try tuning the `hlsPartDuration` parameter
hlsPartDuration: 500ms hlsPartDuration: 500ms
``` ```
### Decreasing latency ### Decrease latency
in HLS, latency is introduced since a client must wait for the server to generate segments before downloading them. This latency amounts to 1-15secs depending on the duration of each segment, and to 500ms-3s if the Low-Latency variant is enabled. in HLS, latency is introduced since a client must wait for the server to generate segments before downloading them. This latency amounts to 1-15secs depending on the duration of each segment, and to 500ms-3s if the Low-Latency variant is enabled.

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