From f3c003481d572c140643e9bbfb292942d8e2ed38 Mon Sep 17 00:00:00 2001
From: Thulinma <jaron@vietors.com>
Date: Mon, 26 Sep 2022 12:44:30 +0200
Subject: [PATCH] Made FLV memory-based loader functions use const pointers

---
 lib/flv_tag.cpp | 6 +++---
 lib/flv_tag.h   | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/lib/flv_tag.cpp b/lib/flv_tag.cpp
index 9ccb6c41..780c6c5a 100644
--- a/lib/flv_tag.cpp
+++ b/lib/flv_tag.cpp
@@ -49,7 +49,7 @@ bool FLV::check_header(char *header){
 
 /// Checks the first 3 bytes for the string "FLV". Implementing a basic FLV header check,
 /// returning true if it is, false if not.
-bool FLV::is_header(char *header){
+bool FLV::is_header(const char *header){
   if (header[0] != 'F') return false;
   if (header[1] != 'L') return false;
   if (header[2] != 'V') return false;
@@ -624,7 +624,7 @@ bool FLV::Tag::ChunkLoader(const RTMPStream::Chunk &O){
 /// \param S The size of the data buffer.
 /// \param P The current position in the data buffer. Will be updated to reflect new position.
 /// \return True if count bytes are read succesfully, false otherwise.
-bool FLV::Tag::MemReadUntil(char *buffer, unsigned int count, unsigned int &sofar, char *D,
+bool FLV::Tag::MemReadUntil(char *buffer, unsigned int count, unsigned int &sofar, const char *D,
                             unsigned int S, unsigned int &P){
   if (sofar >= count){return true;}
   int r = 0;
@@ -646,7 +646,7 @@ bool FLV::Tag::MemReadUntil(char *buffer, unsigned int count, unsigned int &sofa
 /// location of the data buffer. \param S The size of the data buffer. \param P The current position
 /// in the data buffer. Will be updated to reflect new position. \return True if a whole tag is
 /// succesfully read, false otherwise.
-bool FLV::Tag::MemLoader(char *D, unsigned int S, unsigned int &P){
+bool FLV::Tag::MemLoader(const char *D, unsigned int S, unsigned int &P){
   if (len < 15){len = 15;}
   if (!checkBufferSize()){return false;}
   if (done){
diff --git a/lib/flv_tag.h b/lib/flv_tag.h
index ca27f472..10f616b9 100644
--- a/lib/flv_tag.h
+++ b/lib/flv_tag.h
@@ -22,7 +22,7 @@ namespace FLV{
 
   // functions
   bool check_header(char *header); ///< Checks a FLV Header for validness.
-  bool is_header(char *header);    ///< Checks the first 3 bytes for the string "FLV".
+  bool is_header(const char *header);    ///< Checks the first 3 bytes for the string "FLV".
 
   /// Helper function that can quickly skip through a file looking for a particular tag type
   bool seekToTagType(FILE *f, uint8_t type);
@@ -55,7 +55,7 @@ namespace FLV{
     bool DTSCMetaInit(const DTSC::Meta &M, std::set<size_t> &selTracks);
     void toMeta(DTSC::Meta &meta, AMF::Object &amf_storage);
     void toMeta(DTSC::Meta &meta, AMF::Object &amf_storage, size_t &reTrack, const std::map<std::string, std::string> &targetParams);
-    bool MemLoader(char *D, unsigned int S, unsigned int &P);
+    bool MemLoader(const char *D, unsigned int S, unsigned int &P);
     bool FileLoader(FILE *f);
     unsigned int getTrackID();
     char *getData();
@@ -68,7 +68,7 @@ namespace FLV{
     void setLen();
     bool checkBufferSize();
     // loader helper functions
-    bool MemReadUntil(char *buffer, unsigned int count, unsigned int &sofar, char *D,
+    bool MemReadUntil(char *buffer, unsigned int count, unsigned int &sofar, const char *D,
                       unsigned int S, unsigned int &P);
     bool FileReadUntil(char *buffer, unsigned int count, unsigned int &sofar, FILE *f);
   };