From 8ad7645eb4d76bb0175e84049aec1fd4b184679f Mon Sep 17 00:00:00 2001
From: "Baik S. Hyun" <shbaik@icomsys.co.kr>
Date: Tue, 29 Jun 2021 14:48:11 +0900
Subject: [PATCH] add. test codec ctx

---
 cgo/ffmpeg/audio.go | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/cgo/ffmpeg/audio.go b/cgo/ffmpeg/audio.go
index 76fd9ae..fef83c6 100644
--- a/cgo/ffmpeg/audio.go
+++ b/cgo/ffmpeg/audio.go
@@ -585,6 +585,11 @@ func (self *AudioDecoder) Decode(pkt []byte) (gotframe bool, frame av.AudioFrame
 
 	cgotframe := C.int(0)
 
+	if ff.codecCtx == nil {
+		err = fmt.Errorf("ffmpeg: Decode ff.codecCtx NULL")
+		return 
+	}
+
 	cerr := C.decode(ff.codecCtx, ff.frame, (*C.uchar)(unsafe.Pointer(&pkt[0])), C.int(len(pkt)), &cgotframe)
 
 	if cerr < C.int(0) {