Merge branch 'master' of git.sillyangel.dev:angel/mice-3ds

Signed-off-by: angel <angel@sillyangel.dev>

.github/workflows/3ds.yml

@@ -51,9 +51,9 @@ jobs:
       - name: Build
         run: make -j"$(nproc)"
 
-      - name: Upload artefacts
-        uses: actions/upload-artifact@v4
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
         with:
           name: mice-build
-          path: output
+          path: output/
           if-no-files-found: warn

.vscode/tasks.json

@@ -1,6 +1,24 @@
 {
   "version": "2.0.0",
   "tasks": [
+    {
+      "label": "Clean build artifacts",
+      "type": "shell",
+      "command": "rm",
+      "args": [
+        "-rf",
+        "${workspaceFolder}/build/*",
+        "${workspaceFolder}/output/3ds-arm/*"
+      ],
+      "options": {
+        "cwd": "${workspaceFolder}"
+      },
+      "problemMatcher": [],
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
+    },
     {
       "label": "Build 3DS ROM",
       "type": "shell",
@@ -12,10 +30,59 @@
       "problemMatcher": [
         "$gcc"
       ],
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      },
       "group": {
         "kind": "build",
         "isDefault": true
       }
+    },
+    {
+      "label": "Build (full)",
+      "type": "shell",
+      "command": "make",
+      "args": [],
+      "options": {
+        "cwd": "${workspaceFolder}"
+      },
+      "problemMatcher": [
+        "$gcc"
+      ],
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      },
+      "group": "build"
+    },
+    {
+      "label": "Serve (dev)",
+      "type": "shell",
+      "command": "npm",
+      "args": [ "run", "dev" ],
+      "options": {
+        "cwd": "${workspaceFolder}/server"
+      },
+      "isBackground": true,
+      "presentation": {
+        "echo": true,
+        "reveal": "always",
+        "panel": "dedicated"
+      }
+    },
+    {
+      "label": "Serve (prod)",
+      "type": "shell",
+      "command": "npm",
+      "args": [ "start" ],
+      "options": {
+        "cwd": "${workspaceFolder}/server"
+      },
+      "presentation": {
+        "reveal": "always",
+        "panel": "shared"
+      }
     }
   ]
 }

Makefile.linux

@@ -15,6 +15,8 @@ else
         HOST_ARCH := x86_64
     else ifeq ($(UNAME_M),$(filter $(UNAME_M),i386 i686))
         HOST_ARCH := i686
+	else ifeq ($(UNAME_M),$(filter $(UNAME_M),aarch64 arm64))
+            HOST_ARCH := arm64
     else
         $(error "Unsupported host architecture.")
     endif

README.md

@@ -6,6 +6,7 @@ The latest 3DSX/CIA/3DS download can be found on the <a href="https://github.com
 
 ## Features
 * Plays PCM WAV, AIFF, FLAC, Opus, Vorbis and MP3 files.
+* M4A/AAC/ALAC support (file detection implemented, decoder integration in progress).
 * Pause and play support.
 * Plays music via headphones whilst system is closed.
 * Ability to browse directories.

include/file.h

@@ -6,7 +6,9 @@ enum file_types
 	FILE_TYPE_VORBIS,
 	FILE_TYPE_OPUS,
 	FILE_TYPE_MP3,
-	FILE_TYPE_SID
+	FILE_TYPE_SID,
+	FILE_TYPE_M4A,
+	FILE_TYPE_AAC
 };
 
 /**

include/gui.h

@@ -108,4 +108,19 @@ void guiDisplayVersion(const char* version);
  */
 void guiDrawText(gfxScreen_t screen, float x, float y, const char* text, u32 color, float scale);
 
+/**
+ * Display progress bar on top screen
+ * 
+ * \param position  Current position in seconds
+ * \param duration  Total duration in seconds
+ */
+void guiDisplayProgressBar(float position, float duration);
+
+/**
+ * Display current directory path on bottom screen
+ * 
+ * \param path  Current directory path
+ */
+void guiDisplayCurrentPath(const char* path);
+
 #endif

include/m4a.h

@@ -0,0 +1,21 @@
+#ifndef M4A_H
+#define M4A_H
+
+#include "playback.h"
+
+/**
+ * Set decoder parameters for M4A/AAC.
+ *
+ * \param	decoder Structure to store parameters.
+ */
+void setM4a(struct decoder_fn* decoder);
+
+/**
+ * Check if a file is an M4A/AAC/ALAC file.
+ *
+ * \param	file	File location.
+ * \return			0 on success, -1 on failure.
+ */
+int isM4a(const char* file);
+
+#endif

include/main.h

@@ -1,6 +1,6 @@
 /**
  * mice - 3DS Music Player
- * Copyright (C) 2016 Mahyar Koshkouei
+ * Copyright (C) 2025 sillyangel
  *
  * This program comes with ABSOLUTELY NO WARRANTY and is free software. You are
  * welcome to redistribute it under certain conditions; for details see the
@@ -13,7 +13,7 @@
 #define mice_main_h
 
 /* Application version */
-#define MICE_VERSION "dev37"
+#define MICE_VERSION "dev68"
 
 /* Default folder */
 #define DEFAULT_DIR		"sdmc:/"

include/metadata.h

@@ -13,13 +13,6 @@ struct metadata_t
 	char title[METADATA_TITLE_MAX];
 	char artist[METADATA_ARTIST_MAX];
 	char album[METADATA_ALBUM_MAX];
-	
-	/* Album art */
-	uint8_t* albumArt;
-	size_t albumArtSize;
-	int albumArtWidth;
-	int albumArtHeight;
-	bool hasAlbumArt;
 };
 
 /**
@@ -46,11 +39,4 @@ void clearMetadata(struct metadata_t* metadata);
  */
 void displayMetadata(struct metadata_t* metadata, const char* filename);
 
-/**
- * Display album art on top screen if available
- * 
- * \param	metadata	Pointer to metadata structure containing album art
- */
-void displayAlbumArt(struct metadata_t* metadata);
-
 #endif

meta/README.md

@@ -1,4 +1,4 @@
 ## audio.wav
 
-Ctrmus uses a modified version of [Rad Adventure by Scott Holmes](http://freemusicarchive.org/music/Scott_Holmes/~/Rad_Adventure) of which is licensed under a [Attribution-NonCommercial License](https://creativecommons.org/licenses/by-nc/4.0/).
-Permission for use in ctrmus is granted.
+Mice uses [Internal Monologues by Jon Shuemaker](https://freemusicarchive.org/music/jon-shuemaker/anoka-vol2/internal-monologues/) of which is licensed under a [Attribution-NonCommercial 4.0 International License.](https://creativecommons.org/licenses/by-nc/4.0/).
+Permission for use in mice is granted.

source/file.c

@@ -5,6 +5,7 @@
 #include "error.h"
 #include "file.h"
 #include "flac.h"
+#include "m4a.h"
 #include "mp3.h"
 #include "opus.h"
 #include "vorbis.h"
@@ -26,7 +27,9 @@ const char* fileToStr(enum file_types ft)
 		"VORBIS",
 		"OPUS",
 		"MP3",
-		"SID"
+		"SID",
+		"M4A",
+		"AAC"
 	};
 
 	return file_types_str[ft];
@@ -90,24 +93,37 @@ enum file_types getFileType(const char *file)
 			file_type = FILE_TYPE_SID;
 			break;
 
-		default:
-			/*
-			 * MP3 without ID3 tag, ID3v1 tag is at the end of file, or MP3
-			 * with ID3 tag at the beginning  of the file.
-			 */
-			if(isMp3(file) == 0)
-			{
-				file_type = FILE_TYPE_MP3;
-				break;
-			}
-
-			/* TODO: Add this again at some point */
-			//printf("Unknown magic number: %#010x\n.", fileSig);
-			errno = FILE_NOT_SUPPORTED;
+	default:
+		/* Check for M4A/AAC/ALAC (MP4 container with ftyp atom) */
+		if((fileSig == 0x70797466) || /* 'ftyp' at offset 4 */
+		   (fileSig == 0x65657266))    /* 'free' at offset 4 (some M4A files) */
+		{
+			file_type = FILE_TYPE_M4A;
 			break;
-	}
+		}
+		
+		/* Check for raw AAC (ADTS format) - sync word 0xFFF */
+		if((fileSig & 0xFFF60000) == 0xFFF00000)
+		{
+			file_type = FILE_TYPE_AAC;
+			break;
+		}
 
-err:
+		/*
+		 * MP3 without ID3 tag, ID3v1 tag is at the end of file, or MP3
+		 * with ID3 tag at the beginning  of the file.
+		 */
+		if(isMp3(file) == 0)
+		{
+			file_type = FILE_TYPE_MP3;
+			break;
+		}
+
+		/* TODO: Add this again at some point */
+		//printf("Unknown magic number: %#010x\n.", fileSig);
+		errno = FILE_NOT_SUPPORTED;
+		break;
+	}err:
 	fclose(ftest);
 	return file_type;
 }

source/gui.c

@@ -3,6 +3,7 @@
 #include <citro3d.h>
 #include <string.h>
 #include <stdio.h>
+#include <stdlib.h>
 #include "gui.h"
 #include "metadata.h"
 
@@ -82,6 +83,12 @@ void guiClearBottomScreen(void)
 
 /**
  * Draw a simple text string at specified position
+ * @param screen	Screen to draw on (GFX_TOP or GFX_BOTTOM)
+ * @param x		X position
+ * @param y		Y position
+ * @param text	Text string to draw
+ * @param color	Text color
+ * @param scale	Text scale
  */
 void guiDrawText(gfxScreen_t screen, float x, float y, const char* text, u32 color, float scale)
 {
@@ -100,6 +107,8 @@ void guiDrawText(gfxScreen_t screen, float x, float y, const char* text, u32 col
 
 /**
  * Display metadata on the top screen
+ * @param metadata	Pointer to metadata structure to display
+ * @param filename	Filename to display if no title is available
  */
 void guiDisplayMetadata(struct metadata_t* metadata, const char* filename)
 {
@@ -180,18 +189,13 @@ void guiDisplayMetadata(struct metadata_t* metadata, const char* filename)
 		C2D_TextOptimize(&text);
 		C2D_DrawText(&text, C2D_WithColor, 10.0f, y, 0.5f, scale * 0.8f, scale * 0.8f, GUI_COLOR_TEXT_DIM);
 	}
-	
-	/* Draw album art indicator if available */
-	if(metadata->hasAlbumArt)
-	{
-		C2D_TextParse(&text, textBuf, "[Art]");
-		C2D_TextOptimize(&text);
-		C2D_DrawText(&text, C2D_WithColor, 350.0f, 10.0f, 0.5f, 0.4f, 0.4f, GUI_COLOR_ACCENT);
-	}
 }
 
 /**
  * Display log messages on the top screen
+ * @param messages	Array of log message strings
+ * @param count		Number of messages in the array
+ * @param scroll	Index of first visible message for scrolling
  */
 void guiDisplayLog(const char** messages, int count, int scroll)
 {
@@ -222,6 +226,10 @@ void guiDisplayLog(const char** messages, int count, int scroll)
 
 /**
  * Display file list on the bottom screen
+ * @param files		Array of file/folder names
+ * @param count		Number of entries in the array
+ * @param selected	Index of currently selected entry
+ * @param scroll	Index of first visible entry for scrolling
  */
 void guiDisplayFileList(const char** files, int count, int selected, int scroll)
 {
@@ -231,10 +239,10 @@ void guiDisplayFileList(const char** files, int count, int selected, int scroll)
 	C2D_SceneBegin(bottomTarget);
 	
 	C2D_Text text;
-	float y = 10.0f;
+	float y = 18.0f; /* Start below path display */
 	float scale = 0.5f;
 	float lineHeight = 16.0f;
-	int maxLines = 14;
+	int maxLines = 13; /* One less line due to path at top */
 	
 	C2D_TextBufClear(textBuf);
 	
@@ -276,6 +284,10 @@ void guiDisplayFileList(const char** files, int count, int selected, int scroll)
 
 /**
  * Display playback controls and status on the top screen
+ * @param isPlaying		Whether playback is active
+ * @param isPaused		Whether playback is paused
+ * @param position		Current playback position in seconds
+ * @param duration		Total duration in seconds
  */
 void guiDisplayPlaybackStatus(bool isPlaying, bool isPaused, float position, float duration)
 {
@@ -326,6 +338,7 @@ void guiDisplayPlaybackStatus(bool isPlaying, bool isPaused, float position, flo
 
 /**
  * Display version text and credits at bottom of bottom screen
+ * @param version	Version string to display
  */
 void guiDisplayVersion(const char* version)
 {
@@ -338,8 +351,68 @@ void guiDisplayVersion(const char* version)
 	C2D_TextBufClear(textBuf);
 	
 	/* Display "mice - by sillyangel" at bottom center */
-	const char* credits = "mice - by sillyangel";
+	char credits[64];
+	if(version && version[0])
+		snprintf(credits, sizeof(credits), "mice %s - by sillyangel", version);
+	else
+		snprintf(credits, sizeof(credits), "mice - by sillyangel");
 	C2D_TextParse(&text, textBuf, credits);
 	C2D_TextOptimize(&text);
 	C2D_DrawText(&text, C2D_WithColor, 80.0f, 220.0f, 0.5f, 0.45f, 0.45f, GUI_COLOR_TEXT_DIM);
 }
+
+/**
+ * Display progress bar on the top screen
+ * @param position	Current playback position in seconds
+ * @param duration	Total duration in seconds
+ */
+void guiDisplayProgressBar(float position, float duration)
+{
+	if(duration <= 0)
+		return;
+	
+	C2D_SceneBegin(topTarget);
+	
+	/* Progress bar at bottom of top screen */
+	float barY = 205.0f;
+	float barX = 10.0f;
+	float barWidth = 380.0f;
+	float barHeight = 6.0f;
+	
+	/* Background bar */
+	C2D_DrawRectSolid(barX, barY, 0.5f, barWidth, barHeight, C2D_Color32(50, 50, 60, 255));
+	
+	/* Progress fill */
+	float progress = position / duration;
+	if(progress > 1.0f) progress = 1.0f;
+	if(progress < 0.0f) progress = 0.0f;
+	
+	float fillWidth = barWidth * progress;
+	if(fillWidth > 0)
+	{
+		C2D_DrawRectSolid(barX, barY, 0.5f, fillWidth, barHeight, GUI_COLOR_ACCENT);
+	}
+}
+
+/**
+ * Display current directory path on bottom screen
+ * @param path	Current directory path
+ */
+void guiDisplayCurrentPath(const char* path)
+{
+	if(!path || !textBuf)
+		return;
+	
+	C2D_SceneBegin(bottomTarget);
+	
+	C2D_Text text;
+	C2D_TextBufClear(textBuf);
+	
+	/* Display path at top of bottom screen */
+	char pathBuf[64];
+	snprintf(pathBuf, sizeof(pathBuf), "%.55s", path);
+	
+	C2D_TextParse(&text, textBuf, pathBuf);
+	C2D_TextOptimize(&text);
+	C2D_DrawText(&text, C2D_WithColor, 5.0f, 2.0f, 0.5f, 0.35f, 0.35f, GUI_COLOR_TEXT_DIM);
+}

source/m4a.c

@@ -0,0 +1,133 @@
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <3ds.h>
+
+#include "error.h"
+#include "m4a.h"
+#include "playback.h"
+
+/* TODO: Integrate proper AAC decoder library (libfaad2, fdk-aac, or minimp4) */
+/* For now, this is a stub implementation */
+
+static size_t*			buffSize;
+static uint32_t			rate = 44100;
+static uint8_t			channels = 2;
+
+static int initM4a(const char* file);
+static uint32_t rateM4a(void);
+static uint8_t channelM4a(void);
+static uint64_t decodeM4a(void* buffer);
+static void exitM4a(void);
+static size_t getFileSamplesM4a(void);
+
+/**
+ * Set decoder parameters for M4A/AAC.
+ *
+ * \param	decoder Structure to store parameters.
+ */
+void setM4a(struct decoder_fn* decoder)
+{
+	decoder->init = &initM4a;
+	decoder->rate = &rateM4a;
+	decoder->channels = &channelM4a;
+	buffSize = &(decoder->buffSize);
+	decoder->decode = &decodeM4a;
+	decoder->exit = &exitM4a;
+	decoder->getFileSamples = &getFileSamplesM4a;
+}
+
+/**
+ * Check if a file is an M4A/AAC/ALAC file.
+ *
+ * \param	file	File location.
+ * \return			0 on success, -1 on failure.
+ */
+int isM4a(const char* file)
+{
+	FILE* ftest = fopen(file, "rb");
+	uint32_t fileSig;
+	uint32_t ftypSig;
+	
+	if(ftest == NULL)
+		return -1;
+	
+	/* Read first 4 bytes (should be size of ftyp atom) */
+	if(fread(&fileSig, 4, 1, ftest) == 0)
+	{
+		fclose(ftest);
+		return -1;
+	}
+	
+	/* Read next 4 bytes (should be 'ftyp') */
+	if(fread(&ftypSig, 4, 1, ftest) == 0)
+	{
+		fclose(ftest);
+		return -1;
+	}
+	
+	fclose(ftest);
+	
+	/* Check for 'ftyp' signature (0x70797466 in little-endian) */
+	if(ftypSig == 0x70797466)
+		return 0;
+	
+	return -1;
+}
+
+static int initM4a(const char* file)
+{
+	(void)file;
+	
+	/* TODO: Initialize AAC decoder */
+	/* This requires:
+	 * 1. Parse MP4 container to find AAC audio track
+	 * 2. Extract decoder config (sample rate, channels, etc.)
+	 * 3. Initialize AAC decoder with config
+	 */
+	
+	/* Set default values for now */
+	rate = 44100;
+	channels = 2;
+	*buffSize = rate * channels * sizeof(int16_t);
+	
+	errno = FILE_NOT_SUPPORTED;
+	return -1;
+}
+
+static uint32_t rateM4a(void)
+{
+	return rate;
+}
+
+static uint8_t channelM4a(void)
+{
+	return channels;
+}
+
+static uint64_t decodeM4a(void* buffer)
+{
+	(void)buffer;
+	
+	/* TODO: Decode AAC frame */
+	/* This requires:
+	 * 1. Read next AAC frame from MP4 container
+	 * 2. Decode AAC frame to PCM samples
+	 * 3. Write PCM samples to buffer
+	 * 4. Return number of samples decoded
+	 */
+	
+	return 0;
+}
+
+static void exitM4a(void)
+{
+	/* TODO: Clean up AAC decoder */
+}
+
+static size_t getFileSamplesM4a(void)
+{
+	/* TODO: Calculate total samples from MP4 metadata */
+	return 0;
+}

source/main.c

@@ -1,6 +1,6 @@
 /**
  * mice - 3DS Music Player
- * Copyright (C) 2016 Mahyar Koshkouei
+ * Copyright (C) 2025 sillyangel
  *
  * This program comes with ABSOLUTELY NO WARRANTY and is free software. You are
  * welcome to redistribute it under certain conditions; for details see the
@@ -11,6 +11,7 @@
 #include <dirent.h>
 #include <stdbool.h>
 #include <stdio.h>
+#include <ctype.h>
 #include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
@@ -146,6 +147,125 @@ static int cmpstringp(const void *p1, const void *p2)
 	return strcasecmp(* (char * const *) p1, * (char * const *) p2);
 }
 
+/* Check filename extension against supported audio types. Case-insensitive. */
+static bool isMusicFilename(const char *name)
+{
+	if(name == NULL)
+		return false;
+
+	const char *ext = strrchr(name, '.');
+	if(ext == NULL || *(ext + 1) == '\0')
+		return false;
+
+	ext++; /* skip dot */
+	char lext[16];
+	size_t i = 0;
+	for(; i < sizeof(lext)-1 && ext[i]; i++)
+		lext[i] = tolower((unsigned char)ext[i]);
+	lext[i] = '\0';
+
+	const char *allowed[] = {"mp3","wav","flac","ogg","opus","sid","m4a","aac", NULL};
+	for(int j = 0; allowed[j] != NULL; j++)
+		if(strcmp(lext, allowed[j]) == 0)
+			return true;
+
+	return false;
+}
+
+/* Build a list of music filenames (basenames) in the given directory. Caller must free array and each string. */
+static int buildMusicFileListInDir(const char *dirpath, char ***outFiles)
+{
+	DIR *dp;
+	struct dirent *ep;
+	char **files = NULL;
+	int fileNum = 0;
+
+	if((dp = opendir(dirpath)) == NULL)
+		return -1;
+
+	while((ep = readdir(dp)) != NULL)
+	{
+		if(ep->d_type == DT_DIR)
+			continue;
+
+		if(!isMusicFilename(ep->d_name))
+			continue;
+
+		files = realloc(files, (fileNum + 1) * sizeof(char*));
+		files[fileNum] = strdup(ep->d_name);
+		fileNum++;
+	}
+
+	if(fileNum > 0)
+		qsort(files, fileNum, sizeof(char*), cmpstringp);
+
+	closedir(dp);
+	*outFiles = files;
+	return fileNum;
+}
+
+/* Play next file in the same folder as the currently-playing file. Returns 0 on success, -1 on failure or no-next. */
+static int playNextFromPath(struct playbackInfo_t *playbackInfo)
+{
+	if(playbackInfo == NULL || playbackInfo->file[0] == '\0')
+		return -1;
+
+	char fullcpy[PATH_MAX];
+	strncpy(fullcpy, playbackInfo->file, sizeof(fullcpy));
+	fullcpy[sizeof(fullcpy)-1] = '\0';
+
+	/* find last slash */
+	char *slash = strrchr(fullcpy, '/');
+	char dirpath[PATH_MAX];
+	char *basename = NULL;
+
+	if(slash == NULL)
+	{
+		/* No directory component; assume current dir */
+		if(getcwd(dirpath, sizeof(dirpath)) == NULL)
+			return -1;
+		basename = fullcpy;
+	}
+	else
+	{
+		size_t dirlen = slash - fullcpy;
+		if(dirlen >= sizeof(dirpath))
+			return -1;
+		memcpy(dirpath, fullcpy, dirlen);
+		dirpath[dirlen] = '\0';
+		basename = slash + 1;
+	}
+
+	char **files = NULL;
+	int count = buildMusicFileListInDir(dirpath, &files);
+	if(count <= 0)
+		return -1;
+
+	int index = -1;
+	for(int i = 0; i < count; i++)
+	{
+		if(strcmp(files[i], basename) == 0)
+		{
+			index = i;
+			break;
+		}
+	}
+
+	int result = -1;
+	if(index >= 0 && index + 1 < count)
+	{
+		char nextpath[PATH_MAX];
+		snprintf(nextpath, sizeof(nextpath), "%s/%s", dirpath, files[index+1]);
+		result = changeFile(nextpath, playbackInfo);
+	}
+
+	for(int i = 0; i < count; i++)
+		free(files[i]);
+	free(files);
+
+	return result;
+}
+
 /**
  * Store the list of files and folders in current directory to an array.
  */
@@ -614,17 +734,24 @@ int main(int argc __attribute__((unused)), char **argv __attribute__((unused)))
 		/* Display metadata if we have any */
 		if(currentMetadata.title[0] || currentMetadata.artist[0] || currentMetadata.album[0])
 		{
-			const char* currentFile = (fileNum > 0 && fileNum <= dirList.dirNum + dirList.fileNum) ?
-				(fileNum > dirList.dirNum ? dirList.files[fileNum - dirList.dirNum - 1] : "..") : "";
-			guiDisplayMetadata(&currentMetadata, currentFile);
+		const char* currentFile = (fileNum > 0 && fileNum <= dirList.dirNum + dirList.fileNum) ?
+			(fileNum > dirList.dirNum ? dirList.files[fileNum - dirList.dirNum - 1] : "..") : "";
+		guiDisplayMetadata(&currentMetadata, currentFile);
 		}
 		
-		/* Calculate scroll position to keep selection visible (14 lines visible) */
+		/* Calculate scroll position to keep selection visible (13 lines visible with path) */
 		int scroll = from;
 		if(fileNum < scroll)
 			scroll = fileNum;
-		else if(fileNum >= scroll + 14)
-			scroll = fileNum - 13;
+		else if(fileNum >= scroll + 13)
+			scroll = fileNum - 12;
+		
+		/* Display current directory path */
+		char currentPath[256];
+		if(getcwd(currentPath, sizeof(currentPath)))
+		{
+			guiDisplayCurrentPath(currentPath);
+		}
 		
 		/* Display file list on bottom screen */
 		guiDisplayFileList(fileList, fileListCount, fileNum, scroll);
@@ -632,11 +759,12 @@ int main(int argc __attribute__((unused)), char **argv __attribute__((unused)))
 		/* Display logs on top screen */
 		guiDisplayLog((const char**)logMessages, logMessageCount, logScroll);
 		
-		/* Display playback status */
+		/* Display playback status and progress bar */
 		if(playbackInfo.samples_per_second > 0)
 		{
 			float position = (float)playbackInfo.samples_played / playbackInfo.samples_per_second;
 			float duration = (float)playbackInfo.samples_total / playbackInfo.samples_per_second;
+			guiDisplayProgressBar(position, duration);
 			guiDisplayPlaybackStatus(isPlaying(), isPaused(), position, duration);
 		}
 		

source/metadata.c

@@ -83,16 +83,7 @@ void clearMetadata(struct metadata_t* metadata)
 	memset(metadata->artist, 0, METADATA_ARTIST_MAX);
 	memset(metadata->album, 0, METADATA_ALBUM_MAX);
 	
-	if(metadata->albumArt)
-	{
-		free(metadata->albumArt);
-		metadata->albumArt = NULL;
-	}
-	
-	metadata->albumArtSize = 0;
-	metadata->albumArtWidth = 0;
-	metadata->albumArtHeight = 0;
-	metadata->hasAlbumArt = false;
+
 }
 
 /**
@@ -104,19 +95,6 @@ void displayMetadata(struct metadata_t* metadata, const char* filename)
 	guiDisplayMetadata(metadata, filename);
 }
 
-/**
- * Display album art on top screen if available
- */
-void displayAlbumArt(struct metadata_t* metadata)
-{
-	if(!metadata || !metadata->hasAlbumArt || !metadata->albumArt)
-		return;
-	
-	/* For now, just indicate that album art is available */
-	/* Full implementation would require image decoding and display */
-	printf("🖼️ Album Art: %dx%d\n", metadata->albumArtWidth, metadata->albumArtHeight);
-}
-
 /**
  * Extract ID3v2 metadata from MP3 file
  */
@@ -194,55 +172,91 @@ static int extractId3v2Metadata(FILE* fp, struct metadata_t* metadata)
 				continue;
 			}
 			
-			if(fread(frameData, 1, frameSize, fp) == frameSize)
+		if(fread(frameData, 1, frameSize, fp) == frameSize)
+		{
+			frameData[frameSize] = 0;
+			
+			/* Text encoding byte:
+			 * 0x00 = ISO-8859-1
+			 * 0x01 = UTF-16 with BOM
+			 * 0x02 = UTF-16BE without BOM
+			 * 0x03 = UTF-8
+			 */
+			uint8_t encoding = frameData[0];
+			char* text = frameData + 1;
+			int textLen = frameSize - 1;
+			
+			/* Skip UTF-16 BOM if present */
+			if(encoding == 0x01 && textLen >= 2)
 			{
-				frameData[frameSize] = 0;
-				
-				/* Skip text encoding byte */
-				char* text = frameData + 1;
-				int textLen = frameSize - 1;
-				
-				/* Copy to appropriate field */
-				char* dest = NULL;
-				size_t maxLen = 0;
-				
-				if(strncmp(frameId, "TIT2", 4) == 0)
+				if((uint8_t)text[0] == 0xFF && (uint8_t)text[1] == 0xFE)
 				{
-					dest = metadata->title;
-					maxLen = METADATA_TITLE_MAX - 1;
+					text += 2;
+					textLen -= 2;
 				}
-				else if(strncmp(frameId, "TPE1", 4) == 0)
+				else if((uint8_t)text[0] == 0xFE && (uint8_t)text[1] == 0xFF)
 				{
-					dest = metadata->artist;
-					maxLen = METADATA_ARTIST_MAX - 1;
-				}
-				else if(strncmp(frameId, "TALB", 4) == 0)
-				{
-					dest = metadata->album;
-					maxLen = METADATA_ALBUM_MAX - 1;
-				}
-				
-				if(dest)
-				{
-					strncpy(dest, text, maxLen);
-					dest[maxLen] = 0;
-					trimWhitespace(dest);
+					text += 2;
+					textLen -= 2;
 				}
 			}
 			
-			free(frameData);
+			/* Copy to appropriate field */
+			char* dest = NULL;
+			size_t maxLen = 0;
+			
+			if(strncmp(frameId, "TIT2", 4) == 0)
+			{
+				dest = metadata->title;
+				maxLen = METADATA_TITLE_MAX - 1;
+			}
+			else if(strncmp(frameId, "TPE1", 4) == 0)
+			{
+				dest = metadata->artist;
+				maxLen = METADATA_ARTIST_MAX - 1;
+			}
+			else if(strncmp(frameId, "TALB", 4) == 0)
+			{
+				dest = metadata->album;
+				maxLen = METADATA_ALBUM_MAX - 1;
+			}
+			
+			if(dest)
+			{
+				/* Handle different encodings */
+				if(encoding == 0x01 || encoding == 0x02) /* UTF-16 */
+				{
+					/* Convert UTF-16 to ASCII (simplified - just take every other byte) */
+					int outPos = 0;
+					for(int i = 0; i < textLen && outPos < (int)maxLen; i += 2)
+					{
+						if(text[i] >= 0x20 && text[i] < 0x7F)
+							dest[outPos++] = text[i];
+						else if(text[i] == 0 && text[i+1] == 0)
+							break;
+					}
+					dest[outPos] = 0;
+				}
+				else /* ISO-8859-1 or UTF-8 */
+				{
+					/* Copy as-is, filtering out non-ASCII characters */
+					int outPos = 0;
+					for(int i = 0; i < textLen && outPos < (int)maxLen; i++)
+					{
+						if((uint8_t)text[i] >= 0x20 && (uint8_t)text[i] < 0x7F)
+							dest[outPos++] = text[i];
+						else if(text[i] == 0)
+							break;
+					}
+					dest[outPos] = 0;
+				}
+				trimWhitespace(dest);
+			}
+		}			free(frameData);
 		}
 		else if(strncmp(frameId, "APIC", 4) == 0) /* Attached Picture */
 		{
-			/* Basic album art detection - just store size info for now */
-			if(frameSize > 10 && !metadata->hasAlbumArt)
-			{
-				metadata->hasAlbumArt = true;
-				metadata->albumArtSize = frameSize;
-				/* Estimate dimensions - actual implementation would decode image */
-				metadata->albumArtWidth = 300;  /* Common album art size */
-				metadata->albumArtHeight = 300;
-			}
+			/* Skip album art data */
 			fseek(fp, frameSize, SEEK_CUR);
 		}
 		else
@@ -415,7 +429,12 @@ static int extractFlacMetadata(FILE* fp, struct metadata_t* metadata)
 		blockType = blockHeader[0] & 0x7F;
 		blockSize = (blockHeader[1] << 16) | (blockHeader[2] << 8) | blockHeader[3];
 		
-		if(blockType == 4) /* VORBIS_COMMENT */
+		if(blockType == 6) /* PICTURE */
+		{
+			/* Skip picture block */
+			fseek(fp, blockSize, SEEK_CUR);
+		}
+		else if(blockType == 4) /* VORBIS_COMMENT */
 		{
 			/* FLAC uses Vorbis comments for metadata */
 			/* This is a simplified implementation */

source/playback.c

@@ -7,6 +7,7 @@
 #include "error.h"
 #include "file.h"
 #include "flac.h"
+#include "m4a.h"
 #include "mp3.h"
 #include "opus.h"
 #include "playback.h"
@@ -98,15 +99,18 @@ void playFile(void* infoIn)
 			setVorbis(&decoder);
 			break;
 		
-		case FILE_TYPE_SID:
-			setSid(&decoder);
-			break;
+	case FILE_TYPE_SID:
+		setSid(&decoder);
+		break;
+	
+	case FILE_TYPE_M4A:
+	case FILE_TYPE_AAC:
+		setM4a(&decoder);
+		break;
 
-		default:
-			goto err;
-	}
-
-	if(ndspInit() < 0)
+	default:
+		goto err;
+	}	if(ndspInit() < 0)
 	{
 		errno = NDSP_INIT_FAIL;
 		goto err;

unistore/mice.unistore

@@ -0,0 +1,44 @@
+{
+	"storeInfo": {
+		"title": "mice unistore",
+		"author": "sillyangel",
+		"description": "A music player for the Nintendo 3DS",
+		"url": "https://git.sillyangel.dev/angel/mice-3ds/raw/branch/master/unistore/mice.unistore",
+		"file": "mice.unistore",
+		"sheetURL": "https://git.sillyangel.dev/angel/mice-3ds/raw/branch/master/unistore/spritesheet/sheet.t3x",
+		"sheet": "sheet.t3x",
+		"version": 4,
+		"revision": 0
+	},
+	"storeContent": [
+		{
+			"info": {
+				"title": "mice",
+				"author": "sillyangel",
+				"description": "A music player for the Nintendo 3DS. Plays PCM WAV, AIFF, FLAC, Opus, Vorbis and MP3 files.",
+				"category": ["utility", "music"],
+				"console": ["3DS"],
+				"icon_index": 0,
+				"sheet_index": 0,
+				"last_updated": "2025-12-07 at 00:00 (UTC)",
+				"license": "gpl-3.0",
+				"version": "dev63"
+			}
+            "mice.cia": [
+                {
+                    "type": "downloadFile",
+                    "file": "hhttps://git.sillyangel.dev/angel/mice-3ds/releases/download/latest/mice.cia",
+                    "output": "sdmc:/mice.cia"
+                },
+                {
+                    "type": "installCia",
+                    "file": "/mice.cia"
+                },
+                {
+                    "type": "deleteFile",
+                    "file": "sdmc:/mice.cia"
+                }
+            ],
+		}
+	]
+}

unistore/spritesheet/sheet.t3s

@@ -0,0 +1,3 @@
+--atlas -f rgba -z auto
+
+0.png