From 925acd1ebc33c2ccd27b549386ebfb46eabebfcf Mon Sep 17 00:00:00 2001
From: cedricve <cedric@verstraeten.io>
Date: Mon, 4 Jan 2021 16:03:02 +0100
Subject: [PATCH] avoid fps for transcoding (used for webrtc)

---
 av/transcode/transcode.go |  8 ++++----
 cgo/ffmpeg/video.go       | 18 +++++++++++++++---
 2 files changed, 19 insertions(+), 7 deletions(-)

diff --git a/av/transcode/transcode.go b/av/transcode/transcode.go
index 4e177ee..cf64901 100644
--- a/av/transcode/transcode.go
+++ b/av/transcode/transcode.go
@@ -141,10 +141,10 @@ func (self *tStream) videoDecodeAndEncode(inpkt av.Packet) (outpkts []av.Packet,
 		return
 	}
 
-	if dur, err = self.vdecodec.PacketDuration(inpkt.Data); err != nil {
-		err = fmt.Errorf("transcode: PacketDuration() failed for input video stream #%d", inpkt.Idx)
-		return
-	}
+	//if dur, err = self.vdecodec.PacketDuration(inpkt.Data); err != nil {
+	//	err = fmt.Errorf("transcode: PacketDuration() failed for input video stream #%d", inpkt.Idx)
+	//	return
+	//}
 
 	if Debug {
 		fmt.Println("transcode: push", inpkt.Time, dur)
diff --git a/cgo/ffmpeg/video.go b/cgo/ffmpeg/video.go
index 2621faa..f97a8f0 100644
--- a/cgo/ffmpeg/video.go
+++ b/cgo/ffmpeg/video.go
@@ -677,6 +677,10 @@ func (enc *VideoEncoder) SetGopSize(gopSize int) (err error) {
 	return
 }
 
+func (enc *VideoEncoder) GetGopSize() (int) {
+	return enc.gopSize
+}
+
 func (enc *VideoEncoder) SetResolution(w, h int) (err error) {
 	enc.width = w
 	enc.height = h
@@ -773,6 +777,8 @@ func NewVideoEncoderByName(name string) (enc *VideoEncoder, err error) {
 type VideoDecoder struct {
 	ff *ffctx
 	Extradata []byte
+	fpsNum int
+	fpsDen int
 }
 
 func (self *VideoDecoder) Setup() (err error) {
@@ -833,10 +839,16 @@ func (dec *VideoDecoder) Close() {
 	freeFFCtx(dec.ff)
 }
 
+func (dec *VideoDecoder) SetFramerate(num, den int) (err error) {
+	dec.fpsNum = num
+	dec.fpsDen = den
+	return
+}
+
 func (dec VideoDecoder) GetFramerate() (num, den int) {
-	ff := &dec.ff.ff
-	num = int(ff.codecCtx.framerate.num)
-	den = int(ff.codecCtx.framerate.den)
+	//ff := &dec.ff.ff
+	num = dec.fpsNum // int(ff.codecCtx.framerate.num)
+	den = dec.fpsDen //int(ff.codecCtx.framerate.den)
 	return
 }