From 3e67e44c61438c508c9bf99c9a0081442e09b5f4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Miroslav=20=C5=A0ediv=C3=BD?= <sedivy.miro@gmail.com>
Date: Wed, 8 Dec 2021 20:01:47 +0100
Subject: [PATCH] initial h265 implementation.

---
 server/internal/gst/gst.go             | 9 +++++++++
 server/internal/types/config/remote.go | 7 +++++++
 server/internal/webrtc/webrtc.go       | 4 ++++
 3 files changed, 20 insertions(+)

diff --git a/server/internal/gst/gst.go b/server/internal/gst/gst.go
index 72837c63..fac94722 100644
--- a/server/internal/gst/gst.go
+++ b/server/internal/gst/gst.go
@@ -133,6 +133,15 @@ func CreateAppPipeline(codecName string, pipelineDevice string, pipelineSrc stri
 		}
 
 		pipelineStr = fmt.Sprintf(videoSrc+"video/x-raw,format=NV12 ! x264enc threads=4 bitrate=%d key-int-max=60 vbv-buf-capacity=%d byte-stream=true tune=zerolatency speed-preset=veryfast ! video/x-h264,stream-format=byte-stream"+pipelineStr, pipelineDevice, fps, bitrate, vbvbuf)
+	case "H265":
+		// https://gstreamer.freedesktop.org/documentation/vpx/vp9enc.html?gi-language=c
+		// gstreamer1.0-plugins-good
+		// vp9enc
+		if err := CheckPlugins([]string{"ximagesrc", "x265"}); err != nil {
+			return nil, err
+		}
+
+		pipelineStr = fmt.Sprintf(videoSrc+"x265enc bitrate=%d key-int-max=60 tune=zerolatency speed-preset=veryfast ! video/x-h265,stream-format=byte-stream"+pipelineStr, pipelineDevice, fps, bitrate)
 	case "Opus":
 		// https://gstreamer.freedesktop.org/documentation/opus/opusenc.html
 		// gstreamer1.0-plugins-base
diff --git a/server/internal/types/config/remote.go b/server/internal/types/config/remote.go
index a48c3677..8f776bde 100644
--- a/server/internal/types/config/remote.go
+++ b/server/internal/types/config/remote.go
@@ -80,6 +80,11 @@ func (Remote) Init(cmd *cobra.Command) error {
 		return err
 	}
 
+	cmd.PersistentFlags().Bool("h265", false, "use H265 video codec")
+	if err := viper.BindPFlag("h265", cmd.PersistentFlags().Lookup("h265")); err != nil {
+		return err
+	}
+
 	// audio codecs
 	cmd.PersistentFlags().Bool("opus", false, "use Opus audio codec")
 	if err := viper.BindPFlag("opus", cmd.PersistentFlags().Lookup("opus")); err != nil {
@@ -112,6 +117,8 @@ func (s *Remote) Set() {
 		videoCodec = "VP9"
 	} else if viper.GetBool("h264") {
 		videoCodec = "H264"
+	} else if viper.GetBool("h265") {
+		videoCodec = "H265"
 	}
 
 	audioCodec := "Opus"
diff --git a/server/internal/webrtc/webrtc.go b/server/internal/webrtc/webrtc.go
index 78978ab0..e3dbb214 100644
--- a/server/internal/webrtc/webrtc.go
+++ b/server/internal/webrtc/webrtc.go
@@ -317,6 +317,10 @@ func (manager *WebRTCManager) createTrack(codecName string) (*webrtc.TrackLocalS
 	case "H264":
 		codec = webrtc.RTPCodecParameters{RTPCodecCapability: webrtc.RTPCodecCapability{MimeType: webrtc.MimeTypeH264, ClockRate: 90000, Channels: 0, SDPFmtpLine: "level-asymmetry-allowed=1;packetization-mode=1;profile-level-id=42e01f", RTCPFeedback: fb}, PayloadType: 102}
 		id = "video"
+	case "H265":
+		// TODO: Fix this (correct payload type and SDPFmtpLine if needed).
+		codec = webrtc.RTPCodecParameters{RTPCodecCapability: webrtc.RTPCodecCapability{MimeType: "video/H265", ClockRate: 90000, Channels: 0, SDPFmtpLine: "", RTCPFeedback: fb}, PayloadType: 0}
+		id = "video"
 	case "Opus":
 		codec = webrtc.RTPCodecParameters{RTPCodecCapability: webrtc.RTPCodecCapability{MimeType: webrtc.MimeTypeOpus, ClockRate: 48000, Channels: 2, SDPFmtpLine: "", RTCPFeedback: fb}, PayloadType: 111}
 		id = "audio"