From 48c8a8ce082ebdb992cb52cdd766298e8ca19011 Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期二, 25 五月 2021 11:04:56 +0800
Subject: [PATCH] bug fixed gb28181 capture picture

---
 csrc/wrapper.cpp                           |    4 ++--
 csrc/wrapper.hpp                           |    2 +-
 goffmpeg.go                                |    4 ++--
 cffmpeg.h                                  |    2 +-
 libcffmpeg.c                               |    4 ++--
 csrc/cffmpeg.cpp                           |    4 ++--
 libcffmpeg.h                               |    2 +-
 csrc/thirdparty/gb28181/include/PsToEs.hpp |    6 +++++-
 8 files changed, 16 insertions(+), 12 deletions(-)

diff --git a/cffmpeg.h b/cffmpeg.h
index 1eb38cb..fc491ab 100644
--- a/cffmpeg.h
+++ b/cffmpeg.h
@@ -17,7 +17,7 @@
 
 int c_ffmpeg_get_fps(const cffmpeg h);
 void c_ffmpeg_run_gb28181(const cffmpeg h);
-char * c_ffmpeg_get_gb28181_pic(const char *rtspUrl, int *retDataLen);
+char * c_ffmpeg_get_gb28181_pic(const char *rtspUrl, int *retDataLen, const int tt);
 void c_ffmepg_use_cpu(const cffmpeg h);
 /////////passive api
 void c_ffmpeg_open_recorder(const cffmpeg h);
diff --git a/csrc/cffmpeg.cpp b/csrc/cffmpeg.cpp
index 5d94f90..b343ef4 100644
--- a/csrc/cffmpeg.cpp
+++ b/csrc/cffmpeg.cpp
@@ -43,9 +43,9 @@
     s->GB28181();
 }
 
-char * c_ffmpeg_get_gb28181_pic(const char *rtspUrl, int *retDataLen){
+char * c_ffmpeg_get_gb28181_pic(const char *rtspUrl, int *retDataLen, const int tt){
     char * retData = (char *)malloc(sizeof(char) * 3000000);
-    int flag = GetGb28181Pic(rtspUrl, retData, retDataLen);
+    int flag = GetGb28181Pic(rtspUrl, retData, retDataLen, tt);
     if(flag == -1){
         free(retData);
         *retDataLen = 0;
diff --git a/csrc/thirdparty/gb28181/include/PsToEs.hpp b/csrc/thirdparty/gb28181/include/PsToEs.hpp
index 438b06d..c12e1e3 100644
--- a/csrc/thirdparty/gb28181/include/PsToEs.hpp
+++ b/csrc/thirdparty/gb28181/include/PsToEs.hpp
@@ -177,13 +177,17 @@
 	    return bufsize;
 	}
 
-    static int capturePic(void *opaque, char *buf, int *bufsize) {
+    static int capturePic(void *opaque, char *buf, int *bufsize, const int tt) {
 
         GB28181API *_this = (GB28181API *) opaque;
         int len = 0;
         *bufsize = 0;
 
+        int ttt = 0;
         do {
+        	if (ttt > tt) return 0;
+        	ttt++;
+
             //浠庣紦瀛樹腑鑾峰彇buffinfo
             if (_this->m_rtpQueue.count_queue() == 0) {
 //                printf(" count_queue == 0 \n");
diff --git a/csrc/wrapper.cpp b/csrc/wrapper.cpp
index e0aef2d..4b6bd93 100644
--- a/csrc/wrapper.cpp
+++ b/csrc/wrapper.cpp
@@ -453,7 +453,7 @@
         return flag;
     }
 
-    int GetGb28181Pic(const char *rtspUrl, char *retData, int *retDataLen){
+    int GetGb28181Pic(const char *rtspUrl, char *retData, int *retDataLen, const int tt){
         int ret = 0;
         std::string fn = rtspUrl;
 
@@ -464,7 +464,7 @@
             return -1;
         }
 
-        int retLen = handle_gb28181->capturePic(handle_gb28181, retData, retDataLen);
+        int retLen = handle_gb28181->capturePic(handle_gb28181, retData, retDataLen, tt);
         if(retLen == 0){
             logIt("do capturePic failed:%d");
             ret = -1;
diff --git a/csrc/wrapper.hpp b/csrc/wrapper.hpp
index e2d9a8b..8ef04e5 100644
--- a/csrc/wrapper.hpp
+++ b/csrc/wrapper.hpp
@@ -96,7 +96,7 @@
                         const int pix_fmt, const int scale_flag, const int gi);
     void DestroyEncoder(void *h);
     int Encode(void *hdl, uint8_t *in, const int w, const int h, uint8_t **out, int *size, int *key);
-    int GetGb28181Pic(const char *filename, char *retData, int *retDataLen);
+    int GetGb28181Pic(const char *filename, char *retData, int *retDataLen, const int tt);
 }
 
 #endif
\ No newline at end of file
diff --git a/goffmpeg.go b/goffmpeg.go
index 52a3a7d..485e568 100644
--- a/goffmpeg.go
+++ b/goffmpeg.go
@@ -209,12 +209,12 @@
 }
 
 // GetGBJpg Get GB28181 Jpg
-func GetGBJpg(rtspURL string) []byte {
+func GetGBJpg(rtspURL string, maxTry int) []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)
+	pic := C.wrap_fn_get_gb28181_pic(unsafe.Pointer(libcffmpeg), rtsp, &jpgLen, C.int(maxTry))
 	defer C.free(unsafe.Pointer(pic))
 
 	retJpg := C.GoBytes(unsafe.Pointer(pic), jpgLen)
diff --git a/libcffmpeg.c b/libcffmpeg.c
index c8298a8..279b292 100644
--- a/libcffmpeg.c
+++ b/libcffmpeg.c
@@ -79,7 +79,7 @@
     fn_gb28181(h);
 }
 
-char * wrap_fn_get_gb28181_pic(void *lib, const char *rtspUrl, int *retDataLen){
+char * wrap_fn_get_gb28181_pic(void *lib, const char *rtspUrl, int *retDataLen, const int tt){
     if (!fn_get_gb28181_pic){
         fn_get_gb28181_pic = (lib_cffmpeg_get_gb28181_pic)dlsym(lib, "c_ffmpeg_get_gb28181_pic");
         if(!fn_get_gb28181_pic) {
@@ -87,7 +87,7 @@
             return NULL;
         }
     }
-    return fn_get_gb28181_pic(rtspUrl, retDataLen);
+    return fn_get_gb28181_pic(rtspUrl, retDataLen, tt);
 }
 
 void wrap_fn_use_cpu(void *lib, const cffmpeg h){
diff --git a/libcffmpeg.h b/libcffmpeg.h
index d11e658..0f229cc 100644
--- a/libcffmpeg.h
+++ b/libcffmpeg.h
@@ -62,7 +62,7 @@
 void wrap_fn_run(void *lib, const cffmpeg h, const char* input);
 int wrap_fn_fps(void *lib, const cffmpeg h);
 void wrap_fn_run_gb28181(void *lib, const cffmpeg h);
-char * wrap_fn_get_gb28181_pic(void *lib, const char *rtspUrl, int *retDataLen);
+char * wrap_fn_get_gb28181_pic(void *lib, const char *rtspUrl, int *retDataLen, const int tt);
 void wrap_fn_use_cpu(void *lib, const cffmpeg h);
 void wrap_fn_open_rec(void *lib, const cffmpeg h);
 void wrap_fn_rec_duration(void *lib, const cffmpeg h, const int min, const int max);

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