75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
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/*
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SDL_mixer: An audio mixer library based on the SDL library
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Copyright (C) 1997-2009 Sam Lantinga
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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Sam Lantinga
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slouken@libsdl.org
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*/
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#ifdef MP3_MAD_MUSIC
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#include "mad.h"
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#include "SDL_rwops.h"
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#include "SDL_audio.h"
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#include "SDL_mixer.h"
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#define MAD_INPUT_BUFFER_SIZE (5*8192)
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#define MAD_OUTPUT_BUFFER_SIZE 8192
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enum {
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MS_input_eof = 0x0001,
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MS_input_error = 0x0001,
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MS_decode_eof = 0x0002,
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MS_decode_error = 0x0004,
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MS_error_flags = 0x000f,
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MS_playing = 0x0100,
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MS_cvt_decoded = 0x0200,
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};
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typedef struct {
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SDL_RWops *rw;
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SDL_bool freerw;
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struct mad_stream stream;
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struct mad_frame frame;
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struct mad_synth synth;
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int frames_read;
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mad_timer_t next_frame_start;
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int volume;
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int status;
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int output_begin, output_end;
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SDL_AudioSpec mixer;
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SDL_AudioCVT cvt;
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unsigned char input_buffer[MAD_INPUT_BUFFER_SIZE + MAD_BUFFER_GUARD];
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unsigned char output_buffer[MAD_OUTPUT_BUFFER_SIZE];
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} mad_data;
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mad_data *mad_openFile(const char *filename, SDL_AudioSpec *mixer);
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mad_data *mad_openFileRW(SDL_RWops *rw, SDL_AudioSpec *mixer);
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void mad_closeFile(mad_data *mp3_mad);
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void mad_start(mad_data *mp3_mad);
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void mad_stop(mad_data *mp3_mad);
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int mad_isPlaying(mad_data *mp3_mad);
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void mad_getSamples(mad_data *mp3_mad, Uint8 *stream, int len);
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void mad_seek(mad_data *mp3_mad, double position);
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void mad_setVolume(mad_data *mp3_mad, int volume);
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#endif
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