diff --git a/machinery/src/capture/gortsplib.go b/machinery/src/capture/gortsplib.go
index c078474..0c5b0e6 100644
--- a/machinery/src/capture/gortsplib.go
+++ b/machinery/src/capture/gortsplib.go
@@ -1527,13 +1527,13 @@ func newDecoder(codecName string) (*Decoder, error) {
 
 	res := C.avcodec_open2(codecCtx, codec, nil)
 	if res < 0 {
-		C.avcodec_close(codecCtx)
+		C.avcodec_free_context(&codecCtx)
 		return nil, fmt.Errorf("avcodec_open2() failed")
 	}
 
 	srcFrame := C.av_frame_alloc()
 	if srcFrame == nil {
-		C.avcodec_close(codecCtx)
+		C.avcodec_free_context(&codecCtx)
 		return nil, fmt.Errorf("av_frame_alloc() failed")
 	}
 
@@ -1549,7 +1549,7 @@ func (d *Decoder) Close() {
 		C.av_frame_free(&d.srcFrame)
 	}
 	C.av_frame_free(&d.srcFrame)
-	C.avcodec_close(d.codecCtx)
+	C.avcodec_free_context(&d.codecCtx)
 }
 
 func (d *Decoder) decode(nalu []byte) (image.YCbCr, error) {