snapshot

libraries/audio-tools/tests-cmake/codec/mp4-parser/CMakeLists.txt

@@ -0,0 +1,32 @@
+cmake_minimum_required(VERSION 3.20)
+
+# set the project name
+project(mp4-parser)
+set (CMAKE_CXX_STANDARD 11)
+set (DCMAKE_CXX_FLAGS "-Werror")
+
+include(FetchContent)
+option(BUILD_SHARED_LIBS "Build using shared libraries" OFF)
+
+# provide audio-tools
+if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
+    add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/../../.. ${CMAKE_CURRENT_BINARY_DIR}/arduino-audio-tools )
+endif()
+
+# build sketch as executable
+set_source_files_properties(mp4-parser.ino PROPERTIES LANGUAGE CXX)
+add_executable (mp4-parser mp4-parser.ino)
+
+# set preprocessor defines
+target_compile_definitions(arduino_emulator PUBLIC -DDEFINE_MAIN)
+target_compile_definitions(mp4-parser PUBLIC -DARDUINO -DIS_DESKTOP)
+target_compile_options(mp4-parser PRIVATE -Wno-multichar)
+
+
+# set compile optioins
+target_compile_options(arduino-audio-tools INTERFACE -Wno-inconsistent-missing-override)
+
+# specify libraries
+target_link_libraries(mp4-parser PRIVATE 
+    arduino_emulator 
+    arduino-audio-tools)

libraries/audio-tools/tests-cmake/codec/mp4-parser/mp4-parser.ino

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+/**
+ * @file test-codec-alac.ino
+ * @author Phil Schatzmann
+ * @brief generate sine wave -> encoder -> decoder -> audiokit (i2s)
+ * @version 0.1
+ *
+ * @copyright Copyright (c) 2025
+ *
+ */
+#include "AudioTools.h"
+#include "AudioTools/AudioCodecs/MP4Parser.h"
+#include "SD.h"
+
+MP4Parser parser;
+File file;
+
+void setup() {
+  Serial.begin(115200);
+  AudioToolsLogger.begin(Serial, AudioToolsLogLevel::Info);
+
+  if (!SD.begin()) {
+    Serial.println("SD Card initialization failed!");
+    return;
+  }
+
+  file = SD.open("/home/pschatzmann/Music/m4a/aac.m4a");
+  if (!file.isOpen()) {
+    Serial.println("Failed to open file!");
+    return;
+  }
+
+  parser.begin();
+
+  Serial.println("MP4 Boxes:");
+}
+
+void loop() {
+  char buffer[1024];
+  int to_read = min(sizeof(buffer), parser.availableForWrite());
+  size_t bytesRead = file.readBytes(buffer,to_read);
+  assert(parser.write(buffer, bytesRead)== bytesRead);
+  if (bytesRead == 0) {
+    Serial.println("End of file reached.");
+    exit(0);  // Exit the process
+  }
+}