- [NEW] music.duration()

- [NEW] music.state()
- [NEW] contsants music.INVALID, music.PLAYING, music.PAUSED, music.STOPPED i music.DISABLED
- [NEW] El exemple en lua inclos te una secció per a mostrar les funcionalitats de la música

source/backends/SDL3/audio.cpp

@@ -320,6 +320,7 @@ namespace backend
 
                 if (m.stream) SDL_DestroyAudioStream(m.stream);
                 m.stream = nullptr;
+                current = -1;
             }
 
             void fadeOut(int milliseconds)
@@ -390,18 +391,39 @@ namespace backend
             {
                 if (!music::enabled) return 0;
                 if (current<0 || current>static_cast<int>(musics.size())) {
-                    log_msg(LOG_FAIL, "music::getPosition: Illegal music handle: %i\n", current);
+                    //log_msg(LOG_FAIL, "music::getPosition: Illegal music handle: %i\n", current);
                     return 0;
                 }
                 auto &m = musics[current];
                 if (m.state == state::invalid) {
-                    log_msg(LOG_FAIL, "music::getPosition: Invalidated music handle: %i\n", current);
+                    //log_msg(LOG_FAIL, "music::getPosition: Invalidated music handle: %i\n", current);
                     return 0;
                 }
                 int sample = stb_vorbis_get_sample_offset(m.vorbis);
                 return float(sample) / float(m.info.sample_rate);
             }
 
+            float getDuration()
+            {
+                if (!music::enabled) return 0;
+                if (current < 0 || current > static_cast<int>(musics.size())) {
+                    //log_msg(LOG_FAIL, "music::getDuration: Illegal music handle: %i\n", current);
+                    return 0;
+                }
+
+                auto &m = musics[current];
+                if (m.state == state::invalid) {
+                    //log_msg(LOG_FAIL, "music::getDuration: Invalidated music handle: %i\n", current);
+                    return 0;
+                }
+
+                // Total de muestras del stream
+                int total_samples = stb_vorbis_stream_length_in_samples(m.vorbis);
+
+                // Convertir a segundos
+                return float(total_samples) / float(m.info.sample_rate);
+            }
+
             void enable(bool value)
             {
                 if (!value && music::enabled && current>=0 && current<static_cast<int>(musics.size()) && musics[current].state==state::playing) stop();

source/backends/backend.h

@@ -83,7 +83,7 @@ namespace backend
 
         namespace music
         {
-            enum state { invalid, playing, paused, stopped, disabled };
+            enum state { invalid=0, playing=1, paused=2, stopped=3, disabled=4 };
 
             int load(const char* filename);
             int load(const uint8_t* buffer, uint32_t length);
@@ -97,6 +97,7 @@ namespace backend
             float setVolume(float vol);
             void setPosition(float value);
             float getPosition();
+            float getDuration();
             void enable(bool value);
             bool isEnabled();
         }