From f93ee1a42e8c47e472332287b7350b66a6b0fa11 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期五, 24 七月 2020 18:28:57 +0800
Subject: [PATCH] 保存触发id之后的视频作为触发视频

---
 goffmpeg.go |   83 +++++++++++++++++++++++++++++++++++++----
 1 files changed, 75 insertions(+), 8 deletions(-)

diff --git a/goffmpeg.go b/goffmpeg.go
index dedb2bf..bca75d2 100644
--- a/goffmpeg.go
+++ b/goffmpeg.go
@@ -12,6 +12,39 @@
 	"unsafe"
 )
 
+const (
+	// ScaleNone self add no scale raw frame data
+	ScaleNone = 0
+	// ScaleFastBilinear SWS_FAST_BILINEAR
+	ScaleFastBilinear = 1
+	// ScaleBilinear SWS_BILINEAR
+	ScaleBilinear = 2
+	// ScaleBicubic SWS_BICUBIC
+	ScaleBicubic = 4
+	// ScaleX SWS_X
+	ScaleX = 8
+	// ScalePoint SWS_POINT
+	ScalePoint = 0x10
+	// ScaleArea SWS_AREA
+	ScaleArea = 0x20
+	// ScaleBicublin SWS_BICUBLIN
+	ScaleBicublin = 0x40
+	// ScaleGauss SWS_GAUSS
+	ScaleGauss = 0x80
+	// ScaleSinc SWS_SINC
+	ScaleSinc = 0x100
+	// ScaleLancZos SWS_LANCZOS
+	ScaleLancZos = 0x200
+	// ScaleSpline SWS_SPLINE
+	ScaleSpline = 0x400
+)
+
+// SrcFormat format NV
+const SrcFormat = 23
+
+// DstFormat format
+const DstFormat = 3
+
 var libcffmpeg C.libcffmpeg
 
 // InitFFmpeg init ffmepg
@@ -42,16 +75,16 @@
 // New 2nd new
 func New(GB, CPU bool) *GoFFMPEG {
 
-	f := C.wrap_fn_create()
+	f := C.wrap_fn_create(unsafe.Pointer(libcffmpeg))
 
 	if f == nil {
 		return nil
 	}
 	if GB {
-		C.wrap_fn_run_gb28181(f)
+		C.wrap_fn_run_gb28181(unsafe.Pointer(libcffmpeg), f)
 	}
 	if CPU {
-		C.wrap_fn_use_cpu(f)
+		C.wrap_fn_use_cpu(unsafe.Pointer(libcffmpeg), f)
 	}
 
 	return &GoFFMPEG{
@@ -64,15 +97,15 @@
 	lf := C.CString(ffmpegLog)
 	defer C.free(unsafe.Pointer(lf))
 
-	f := C.wrap_fn_create2(lf)
+	f := C.wrap_fn_create2(unsafe.Pointer(libcffmpeg), lf)
 	if f == nil {
 		return nil
 	}
 	if GB {
-		C.wrap_fn_run_gb28181(f)
+		C.wrap_fn_run_gb28181(unsafe.Pointer(libcffmpeg), f)
 	}
 	if CPU {
-		C.wrap_fn_use_cpu(f)
+		C.wrap_fn_use_cpu(unsafe.Pointer(libcffmpeg), f)
 	}
 
 	return &GoFFMPEG{
@@ -83,7 +116,7 @@
 // Free free handle
 func (h *GoFFMPEG) Free() {
 	if h.ffmpeg != nil {
-		C.wrap_fn_destroy(h.ffmpeg)
+		C.wrap_fn_destroy(unsafe.Pointer(libcffmpeg), h.ffmpeg)
 	}
 }
 
@@ -92,5 +125,39 @@
 	in := C.CString(input)
 	defer C.free(unsafe.Pointer(in))
 
-	C.wrap_fn_run(h.ffmpeg, in)
+	C.wrap_fn_run(unsafe.Pointer(libcffmpeg), h.ffmpeg, in)
+}
+
+// Run2 ffmpeg
+func (h *GoFFMPEG) Run2(input string, minDuration int) {
+	in := C.CString(input)
+	defer C.free(unsafe.Pointer(in))
+
+	C.wrap_fn_run(unsafe.Pointer(libcffmpeg), h.ffmpeg, in)
+}
+
+// FPS fps
+func (h *GoFFMPEG) FPS() int {
+	return int(C.wrap_fn_fps(unsafe.Pointer(libcffmpeg), h.ffmpeg))
+}
+
+// ReleaseC release c memory
+func ReleaseC(p unsafe.Pointer) {
+	if p == nil {
+		return
+	}
+	C.free(unsafe.Pointer(p))
+}
+
+// GetGBJpg Get GB28181 Jpg
+func GetGBJpg(rtspUrl string) []byte {
+	rtsp := C.CString(rtspUrl)
+	defer C.free(unsafe.Pointer(rtsp))
+	var jpgLen C.int
+
+	pic := C.wrap_fn_get_gb28181_pic(unsafe.Pointer(libcffmpeg), rtsp, &jpgLen)
+	defer C.free(unsafe.Pointer(pic))
+
+	retJpg := C.GoBytes(unsafe.Pointer(pic), jpgLen)
+	return retJpg
 }

--
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