73 lines
2.1 KiB
C
73 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) 1997-2012 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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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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int 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_openFileRW(SDL_RWops *rw, SDL_AudioSpec *mixer, int freerw);
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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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int 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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