Added SDL_RWops support for reading MP3 files

CHANGES

@@ -2,6 +2,7 @@
 Sam Lantinga - Tue Dec 21 09:51:29 PST 2004
  * Fixed building mikmod support on UNIX
  * Always build SDL_RWops music support
+ * Added SDL_RWops support for reading MP3 files
 
 1.2.6:
 Jonathan Atkins - Wed, 15 Sep 2004 23:26:42 -0500

music.c

@@ -560,14 +560,14 @@ Mix_Music *Mix_LoadMUS(const char *file)
 	if ( (ext && MIX_string_equals(ext, "MPG")) ||
 	     (ext && MIX_string_equals(ext, "MP3")) ||
 	     (ext && MIX_string_equals(ext, "MPEG")) ||
-	     magic[0]==0xFF && (magic[1]&0xF0)==0xF0) {
+	     (magic[0] == 0xFF && (magic[1] & 0xF0) == 0xF0) ) {
 		SMPEG_Info info;
 		music->type = MUS_MP3;
 		music->data.mp3 = SMPEG_new(file, &info, 0);
-		if(!info.has_audio){
+		if ( !info.has_audio ) {
 			Mix_SetError("MPEG file does not have any audio stream.");
 			music->error = 1;
-		}else{
+		} else {
 			SMPEG_actualSpec(music->data.mp3, &used_mixer);
 		}
 	} else
@@ -1330,6 +1330,19 @@ Mix_Music *Mix_LoadMUS_RW(SDL_RWops *rw) {
 		}
 	} else
 #endif
+#ifdef MP3_MUSIC
+	if ( magic[0] == 0xFF && (magic[1] & 0xF0) == 0xF0 ) {
+		SMPEG_Info info;
+		music->type = MUS_MP3;
+		music->data.mp3 = SMPEG_new_rwops(rw, &info, 0);
+		if ( !info.has_audio ) {
+			Mix_SetError("MPEG file does not have any audio stream.");
+			music->error = 1;
+		} else {
+			SMPEG_actualSpec(music->data.mp3, &used_mixer);
+		}
+	} else
+#endif
 #if defined(MOD_MUSIC) || defined(LIBMIKMOD_MUSIC)
 	if (1) {
 		music->type=MUS_MOD;

playmus.c

@@ -57,7 +57,7 @@ void CleanUp(void)
 
 void Usage(char *argv0)
 {
-	fprintf(stderr, "Usage: %s [-i] [-l] [-8] [-r rate] [-c channels] [-b buffers] [-v N] <musicfile>\n", argv0);
+	fprintf(stderr, "Usage: %s [-i] [-l] [-8] [-r rate] [-c channels] [-b buffers] [-v N] [-rwops] <musicfile>\n", argv0);
 }
 
 void Menu(void)
@@ -93,13 +93,15 @@ void IntHandler(int sig)
 
 int main(int argc, char *argv[])
 {
+	SDL_RWops *rwfp;
 	int audio_rate;
 	Uint16 audio_format;
 	int audio_channels;
 	int audio_buffers;
 	int audio_volume = MIX_MAX_VOLUME;
 	int looping = 0;
 	int interactive = 0;
+	int rwops = 0;
 	int i;
 
 	/* Initialize variables */
@@ -137,6 +139,9 @@ int main(int argc, char *argv[])
 		} else
 		if ( strcmp(argv[i], "-8") == 0 ) {
 			audio_format = AUDIO_U8;
+		} else
+		if ( strcmp(argv[i], "-rwops") == 0 ) {
+			rwops = 1;
 		} else {
 			Usage(argv[0]);
 			return(1);
@@ -180,7 +185,12 @@ int main(int argc, char *argv[])
 		next_track = 0;
 
 		/* Load the requested music file */
-		music = Mix_LoadMUS(argv[i]);
+		if ( rwops ) {
+			rwfp = SDL_RWFromFile(argv[i], "rb");
+			music = Mix_LoadMUS(argv[i]);
+		} else {
+			music = Mix_LoadMUS(argv[i]);
+		}
 		if ( music == NULL ) {
 			fprintf(stderr, "Couldn't load %s: %s\n",
 				argv[i], SDL_GetError());
@@ -197,6 +207,9 @@ int main(int argc, char *argv[])
 				SDL_Delay(100);
 		}
 		Mix_FreeMusic(music);
+		if ( rwops ) {
+			SDL_FreeRW(rwfp);
+		}
 		music = NULL;
 
 		/* If the user presses Ctrl-C more than once, exit. */