From 6dffaf7d3b2163ef0af592ae2ad54e5ad12f9a6c Mon Sep 17 00:00:00 2001
From: Sadia Peerzada <sadiapeerzada2006@gmail.com>
Date: Sat, 7 Mar 2026 13:54:15 +0530
Subject: [PATCH 1/3] Add NULL check after strdup in parse_segment_track_entry 
 strdup("eng") may return NULL if memory allocation fails. Added checks and
 call to fatal(EXIT_NOT_ENOUGH_MEMORY) to prevent potential NULL dereference.

Added memory allocation check for language string.
---
 src/lib_ccx/matroska.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/src/lib_ccx/matroska.c b/src/lib_ccx/matroska.c
index 5517e7c32..98ad7bd6a 100644
--- a/src/lib_ccx/matroska.c
+++ b/src/lib_ccx/matroska.c
@@ -880,6 +880,8 @@ void parse_segment_track_entry(struct matroska_ctx *mkv_ctx)
 	ULLONG track_number = 0;
 	enum matroska_track_entry_type track_type = MATROSKA_TRACK_TYPE_VIDEO;
 	char *lang = strdup("eng");
+    if (!lang)
+	fatal(EXIT_NOT_ENOUGH_MEMORY, "In parse_segment_track_entry: Out of memory allocating lang.");
 	char *header = NULL;
 	char *lang_ietf = NULL;
 	char *codec_id_string = NULL;
@@ -1043,10 +1045,11 @@ void parse_segment_track_entry(struct matroska_ctx *mkv_ctx)
 					}
 					// Default to "eng" if we somehow don't have a language yet
 					if (lang == NULL)
-					{
-						lang = strdup("eng");
-					}
-				}
+                     {
+                 	lang = strdup("eng");
+	                 if (!lang)
+	         	fatal(EXIT_NOT_ENOUGH_MEMORY, "In parse_segment_track_entry: Out of memory allocating lang.");
+                     }
 				else
 				{
 					free(lang_ietf); // Free if not a subtitle track

From bd18f5697ad668e1e246383536c4a5dda3290779 Mon Sep 17 00:00:00 2001
From: Sadia Peerzada <sadiapeerzada2006@gmail.com>
Date: Sat, 7 Mar 2026 14:05:31 +0530
Subject: [PATCH 2/3] Refactor language handling in matroska.c

---
 src/lib_ccx/matroska.c | 16 +++++++++-------
 1 file changed, 9 insertions(+), 7 deletions(-)

diff --git a/src/lib_ccx/matroska.c b/src/lib_ccx/matroska.c
index 98ad7bd6a..ea968a498 100644
--- a/src/lib_ccx/matroska.c
+++ b/src/lib_ccx/matroska.c
@@ -1033,7 +1033,7 @@ void parse_segment_track_entry(struct matroska_ctx *mkv_ctx)
 			case MATROSKA_SEGMENT_TRACK_LANGUAGE_IETF:
 				lang_ietf = read_vint_block_string(file);
 				mprint("    Language IETF: %s\n", lang_ietf);
-				// We'll store this for later use rather than freeing it immediately
+							// We'll store this for later use rather than freeing it immediately
 				if (track_type == MATROSKA_TRACK_TYPE_SUBTITLE)
 				{
 					// Don't free lang_ietf here, store in track
@@ -1043,20 +1043,22 @@ void parse_segment_track_entry(struct matroska_ctx *mkv_ctx)
 						free(lang);
 						lang = NULL;
 					}
+
 					// Default to "eng" if we somehow don't have a language yet
 					if (lang == NULL)
-                     {
-                 	lang = strdup("eng");
-	                 if (!lang)
-	         	fatal(EXIT_NOT_ENOUGH_MEMORY, "In parse_segment_track_entry: Out of memory allocating lang.");
-                     }
+					{
+						lang = strdup("eng");
+						if (!lang)
+							fatal(EXIT_NOT_ENOUGH_MEMORY,
+							      "In parse_segment_track_entry: Out of memory allocating lang.");
+					}
+				}
 				else
 				{
 					free(lang_ietf); // Free if not a subtitle track
 					lang_ietf = NULL;
 				}
 				MATROSKA_SWITCH_BREAK(code, code_len);
-
 				/* Misc ids */
 			case MATROSKA_VOID:
 				read_vint_block_skip(file);

From aa1dcba6efdf11f1ae7ccd7e556c2e52686a9a96 Mon Sep 17 00:00:00 2001
From: Sadia Peerzada <sadiapeerzada2006@gmail.com>
Date: Sat, 7 Mar 2026 20:39:51 +0530
Subject: [PATCH 3/3] Add basic report.txt visualization tool

This HTML file provides a user interface for visualizing CCExtractor reports, allowing users to upload a report.txt file and display relevant results.
---
 tools/report-visualizer/index.html | 79 ++++++++++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 tools/report-visualizer/index.html

diff --git a/tools/report-visualizer/index.html b/tools/report-visualizer/index.html
new file mode 100644
index 000000000..d4a81edeb
--- /dev/null
+++ b/tools/report-visualizer/index.html
@@ -0,0 +1,79 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>CCExtractor Report Visualizer</title>
+
+  <style>
+    body {
+      font-family: Arial, sans-serif;
+      padding: 20px;
+      background: #f5f5f5;
+    }
+
+    h1 {
+      color: #333;
+    }
+
+    .card {
+      background: white;
+      border: 1px solid #ddd;
+      padding: 12px;
+      margin-top: 10px;
+      border-radius: 8px;
+      box-shadow: 0px 2px 4px rgba(0,0,0,0.1);
+    }
+  </style>
+
+</head>
+<body>
+
+<h1>CCExtractor Report Visualizer</h1>
+
+<p>Upload a <b>report.txt</b> file generated with <code>-out=report</code></p>
+
+<input type="file" id="fileInput">
+
+<div id="results"></div>
+
+<script>
+
+document.getElementById("fileInput").addEventListener("change", function(e){
+
+  const file = e.target.files[0];
+  const reader = new FileReader();
+
+  reader.onload = function(){
+
+    const text = reader.result;
+    const lines = text.split("\n");
+
+    const container = document.getElementById("results");
+    container.innerHTML = "";
+
+    lines.forEach(line => {
+
+      if(line.toLowerCase().includes("page")){
+
+        const card = document.createElement("div");
+        card.className = "card";
+
+        card.innerHTML = `
+          <strong>Subtitle Page Found</strong><br>
+          ${line}
+        `;
+
+        container.appendChild(card);
+      }
+
+    });
+
+  };
+
+  reader.readAsText(file);
+
+});
+
+</script>
+
+</body>
+</html>