add hevc codec, along with a example for demonstration (#579)

* add hevc codec, along with a example for demonstration

* update against formating check

* update against formating check

* update against formating check

---------

Co-authored-by: shiqifeng <[email protected]>

Author: shiqifeng2000

Cargo.lock

@@ -30,6 +30,7 @@ bytes = "1"
 lazy_static = "1"
 rand = "0.8"
 
+memchr = "2.1.1"
 
 [[example]]
 name = "rc-cycle"
@@ -86,6 +87,11 @@ name = "play-from-disk-h264"
 path = "examples/play-from-disk-h264/play-from-disk-h264.rs"
 bench = false
 
+[[example]]
+name = "play-from-disk-hevc"
+path = "examples/play-from-disk-hevc/play-from-disk-hevc.rs"
+bench = false
+
 [[example]]
 name = "play-from-disk-renegotiation"
 path = "examples/play-from-disk-renegotiation/play-from-disk-renegotiation.rs"

examples/Cargo.toml

@@ -0,0 +1,29 @@
+# play-from-disk-hevc
+
+play-from-disk-hevc demonstrates how to send hevc video and/or audio to your browser from files saved to disk.
+
+## Instructions
+
+### Create IVF named `output.265` that contains a hevc track and/or `output.ogg` that contains a Opus track
+
+```shell
+ffmpeg -i $INPUT_FILE -an -c:v libx265 -bsf:v hevc_mp4toannexb -b:v 2M -max_delay 0 -bf 0 output.265
+ffmpeg -i $INPUT_FILE -c:a libopus -page_duration 20000 -vn output.ogg
+```
+
+### Build/Run play-from-disk-hevc
+
+```shell
+cargo run --example play-from-disk-hevc
+```
+
+### Result and Output
+In the shell you opened, you should see from std that rtp of hevc get received and parsed 
+
+After all is done, an `xx.output` file should be created at the same directory of the src video file
+
+Congrats, you have sent and received the hevc stream
+
+## Notes  
+- Maybe you will need to install libx265/opus for your ffmepg
+- Please update the stun server to the best match, google maybe slow/unaccessable in some certain region/circumstance