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// dec_audio.c:
extern void afm_help(void);
//extern int init_best_audio_codec(sh_audio_t *sh_audio,char* audio_codec,char* audio_fm);
extern int init_audio_codec(sh_audio_t *sh_audio);
extern int init_audio(sh_audio_t *sh_audio,char* codecname,char* afm,int status);
extern int init_best_audio_codec(sh_audio_t *sh_audio,char** audio_codec_list,char** audio_fm_list);
extern int decode_audio(sh_audio_t *sh_audio,unsigned char *buf,int minlen,int maxlen);
extern void resync_audio_stream(sh_audio_t *sh_audio);
extern void skip_audio_frame(sh_audio_t *sh_audio);
extern void uninit_audio(sh_audio_t *sh_audio);
extern int init_audio_filters(sh_audio_t *sh_audio,
int in_samplerate, int in_channels, int in_format,
int *out_samplerate, int *out_channels, int *out_format,
int out_minsize, int out_maxsize);
extern int preinit_audio_filters(sh_audio_t *sh_audio,
int in_samplerate, int in_channels, int in_format,
int* out_samplerate, int* out_channels, int* out_format);
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