From 177293afbc1635e87d82070abeb687974326f41a Mon Sep 17 00:00:00 2001
From: zhangmeng <775834166@qq.com>
Date: 星期二, 25 五月 2021 15:46:50 +0800
Subject: [PATCH] add retval

---
 csrc/cffmpeg.cpp |    9 +++++----
 1 files changed, 5 insertions(+), 4 deletions(-)

diff --git a/csrc/cffmpeg.cpp b/csrc/cffmpeg.cpp
index b343ef4..864e607 100644
--- a/csrc/cffmpeg.cpp
+++ b/csrc/cffmpeg.cpp
@@ -43,16 +43,17 @@
     s->GB28181();
 }
 
-char * c_ffmpeg_get_gb28181_pic(const char *rtspUrl, int *retDataLen, const int tt){
+int c_ffmpeg_get_gb28181_pic(const char *rtspUrl, char** ret, int *retDataLen, const int tt){
     char * retData = (char *)malloc(sizeof(char) * 3000000);
     int flag = GetGb28181Pic(rtspUrl, retData, retDataLen, tt);
-    if(flag == -1){
+    if(flag <= 0){
         free(retData);
         *retDataLen = 0;
-        return NULL;
+        *ret = NULL;
     }
+    *ret = retData;
 
-    return retData;
+    return flag;
 }
 
 void c_ffmepg_use_cpu(const cffmpeg h){

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