/* Free a music chunk previously loaded */ void Mix_FreeMusic(Mix_Music *music) { if ( music ) { /* Stop the music if it's currently playing */ SDL_LockAudio(); if ( music == music_playing ) { /* Wait for any fade out to finish */ while ( music->fading == MIX_FADING_OUT ) { SDL_UnlockAudio(); SDL_Delay(100); SDL_LockAudio(); } if ( music == music_playing ) { music_internal_halt(); } } SDL_UnlockAudio(); switch (music->type) { #ifdef CMD_MUSIC case MUS_CMD: MusicCMD_FreeSong(music->data.cmd); break; #endif #ifdef WAV_MUSIC case MUS_WAV: WAVStream_FreeSong(music->data.wave); break; #endif #ifdef MODPLUG_MUSIC case MUS_MODPLUG: modplug_delete(music->data.modplug); break; #endif #ifdef MOD_MUSIC case MUS_MOD: MOD_delete(music->data.module); break; #endif #ifdef MID_MUSIC case MUS_MID: #ifdef USE_NATIVE_MIDI if ( native_midi_ok ) { native_midi_freesong(music->data.nativemidi); goto skip; } #endif #ifdef USE_FLUIDSYNTH_MIDI if ( fluidsynth_ok ) { fluidsynth_freesong(music->data.fluidsynthmidi); goto skip; } #endif #ifdef USE_TIMIDITY_MIDI if ( timidity_ok ) { Timidity_FreeSong(music->data.midi); goto skip; } #endif break; #endif #ifdef OGG_MUSIC case MUS_OGG: OGG_delete(music->data.ogg); break; #endif #ifdef FLAC_MUSIC case MUS_FLAC: FLAC_delete(music->data.flac); break; #endif #ifdef MP3_MUSIC case MUS_MP3: smpeg.SMPEG_delete(music->data.mp3); break; #endif #ifdef MP3_MAD_MUSIC case MUS_MP3_MAD: mad_closeFile(music->data.mp3_mad); break; #endif default: /* Unknown music type?? */ break; } skip: SDL_free(music); } }
SDL_AudioSpec *Mix_LoadMP3_RW(SDL_RWops *src, int freesrc, SDL_AudioSpec *spec, Uint8 **audio_buf, Uint32 *audio_len) { /* note: spec is initialized to mixer spec */ #if defined(MP3_MUSIC) SMPEG* mp3 = 0; SMPEG_Info info; #elif defined(MP3_MAD_MUSIC) mad_data *mp3_mad; #endif long samplesize; int read_len; const Uint32 chunk_len = 4096; int err = 0; if ((!src) || (!spec) || (!audio_buf) || (!audio_len)) { return NULL; } if (!err) { *audio_len = 0; *audio_buf = (Uint8*) SDL_malloc(chunk_len); err = (*audio_buf == NULL); } if (!err) { err = ((Mix_Init(MIX_INIT_MP3) & MIX_INIT_MP3) == 0); } if (!err) { #if defined(MP3_MUSIC) mp3 = smpeg.SMPEG_new_rwops(src, &info, freesrc, 0); err = (mp3 == NULL); #elif defined(MP3_MAD_MUSIC) mp3_mad = mad_openFileRW(src, spec, freesrc); err = (mp3_mad == NULL); #endif } #if defined(MP3_MUSIC) if (!err) { err = !info.has_audio; } #endif if (!err) { #if defined(MP3_MUSIC) smpeg.SMPEG_actualSpec(mp3, spec); smpeg.SMPEG_enableaudio(mp3, 1); smpeg.SMPEG_enablevideo(mp3, 0); smpeg.SMPEG_play(mp3); /* read once for audio length */ while ((read_len = smpeg.SMPEG_playAudio(mp3, *audio_buf, chunk_len)) > 0) { *audio_len += read_len; } smpeg.SMPEG_stop(mp3); #elif defined(MP3_MAD_MUSIC) mad_start(mp3_mad); /* read once for audio length */ while ((read_len = mad_getSamples(mp3_mad, *audio_buf, chunk_len)) > 0) { *audio_len += read_len; } mad_stop(mp3_mad); #endif err = (read_len < 0); } if (!err) { /* reallocate, if needed */ if ((*audio_len > 0) && (*audio_len != chunk_len)) { *audio_buf = (Uint8*) SDL_realloc(*audio_buf, *audio_len); err = (*audio_buf == NULL); } } if (!err) { /* read again for audio buffer, if needed */ if (*audio_len > chunk_len) { #if defined(MP3_MUSIC) smpeg.SMPEG_rewind(mp3); smpeg.SMPEG_play(mp3); err = (*audio_len != smpeg.SMPEG_playAudio(mp3, *audio_buf, *audio_len)); smpeg.SMPEG_stop(mp3); #elif defined(MP3_MAD_MUSIC) mad_seek(mp3_mad, 0); mad_start(mp3_mad); err = (*audio_len != mad_getSamples(mp3_mad, *audio_buf, *audio_len)); mad_stop(mp3_mad); #endif } } if (!err) { /* Don't return a buffer that isn't a multiple of samplesize */ samplesize = ((spec->format & 0xFF)/8)*spec->channels; *audio_len &= ~(samplesize-1); } #if defined(MP3_MUSIC) if (mp3) { smpeg.SMPEG_delete(mp3); mp3 = NULL; /* Deleting the MP3 closed the source if desired */ freesrc = SDL_FALSE; } #elif defined(MP3_MAD_MUSIC) if (mp3_mad) { mad_closeFile(mp3_mad); mp3_mad = NULL; /* Deleting the MP3 closed the source if desired */ freesrc = SDL_FALSE; } #endif if (freesrc) { SDL_RWclose(src); src = NULL; } /* handle error */ if (err) { if (*audio_buf != NULL) { SDL_free(*audio_buf); *audio_buf = NULL; } *audio_len = 0; spec = NULL; } return spec; }