From 4e190acb3d45b745519d5fe8cbac36ad73c75443 Mon Sep 17 00:00:00 2001
From: Paul Berberian <paul.berberian+github@proton.me>
Date: Thu, 2 May 2024 16:34:19 +0200
Subject: [PATCH] Remove duplicate find_complete_box file in transports code

---
 .../utils/__tests__/find_complete_box.test.ts | 57 ------------------
 src/transports/utils/find_complete_box.ts     | 58 -------------------
 2 files changed, 115 deletions(-)
 delete mode 100644 src/transports/utils/__tests__/find_complete_box.test.ts
 delete mode 100644 src/transports/utils/find_complete_box.ts

diff --git a/src/transports/utils/__tests__/find_complete_box.test.ts b/src/transports/utils/__tests__/find_complete_box.test.ts
deleted file mode 100644
index a81b057563a..00000000000
--- a/src/transports/utils/__tests__/find_complete_box.test.ts
+++ /dev/null
@@ -1,57 +0,0 @@
-/**
- * Copyright 2015 CANAL+ Group
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import findCompleteBox from "../find_complete_box";
-
-describe("transports utils - findCompleteBox", () => {
-  it("should return -1 if the box is not found", () => {
-    const byteArr = new Uint8Array([
-      0, 0, 0, 9, 0x64, 0x67, 0x32, 0x55, 4, 0, 0, 0, 10, 0x88, 0x68, 0x47, 0x53, 12, 88,
-    ]);
-
-    expect(findCompleteBox(byteArr, 0x75757575)).toEqual(-1);
-    expect(findCompleteBox(byteArr, 0x99999999)).toEqual(-1);
-    expect(findCompleteBox(byteArr, 0x99999)).toEqual(-1);
-  });
-
-  it("should return its index if the box is found", () => {
-    const byteArr = new Uint8Array([
-      0, 0, 0, 9, 0x64, 0x67, 0x32, 0x55, 4, 0, 0, 0, 10, 0x88, 0x68, 0x47, 0x53, 12, 88,
-    ]);
-
-    expect(findCompleteBox(byteArr, 0x64673255)).toEqual(0);
-    expect(findCompleteBox(byteArr, 0x88684753)).toEqual(9);
-  });
-
-  it("should not return a box if it is incomplete", () => {
-    const byteArr = new Uint8Array([
-      0, 0, 0, 9, 0x64, 0x67, 0x32, 0x55, 4, 0, 0, 0, 10, 0x88, 0x68, 0x47, 0x53, 12,
-    ]);
-
-    expect(findCompleteBox(byteArr, 0x88684753)).toEqual(-1);
-  });
-
-  it("should return a box if a later one is incomplete", () => {
-    const byteArr = new Uint8Array([
-      0, 0, 0, 9, 0x64, 0x67, 0x32, 0x55, 4, 0, 0, 0, 12, 0x58, 0x58, 0x57, 0x53, 15, 99,
-      87, 77, 0, 0, 0, 10, 0x88, 0x68, 0x47, 0x53, 12,
-    ]);
-
-    expect(findCompleteBox(byteArr, 0x64673255)).toEqual(0);
-    expect(findCompleteBox(byteArr, 0x58585753)).toEqual(9);
-    expect(findCompleteBox(byteArr, 0x88684753)).toEqual(-1);
-  });
-});
diff --git a/src/transports/utils/find_complete_box.ts b/src/transports/utils/find_complete_box.ts
deleted file mode 100644
index bfb7b0f2908..00000000000
--- a/src/transports/utils/find_complete_box.ts
+++ /dev/null
@@ -1,58 +0,0 @@
-/**
- * Copyright 2015 CANAL+ Group
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import { be4toi, be8toi } from "../../utils/byte_parsing";
-
-/**
- * Find the offset for the first declaration of the given box in an isobmff.
- * Returns -1 if not found or if incomplete.
- *
- * This function does not throw or log in case of partial segments.
- * @param {Uint8Array} buf - the isobmff
- * @param {Number} wantedName
- * @returns {Number} - Offset where the box begins. -1 if not found.
- */
-export default function findCompleteBox(buf: Uint8Array, wantedName: number): number {
-  const len = buf.length;
-  let i = 0;
-  while (i + 8 <= len) {
-    let size = be4toi(buf, i);
-
-    if (size === 0) {
-      size = len - i;
-    } else if (size === 1) {
-      if (i + 16 > len) {
-        return -1;
-      }
-      size = be8toi(buf, i + 8);
-    }
-
-    if (isNaN(size) || size <= 0) {
-      // should not happen
-      return -1;
-    }
-
-    const name = be4toi(buf, i + 4);
-    if (name === wantedName) {
-      if (i + size <= len) {
-        return i;
-      }
-      return -1;
-    }
-    i += size;
-  }
-  return -1;
-}