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Интерактивная система просмотра системных руководств (man-ов)

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SDL_AudioCVT (3)
  • >> SDL_AudioCVT (3) ( Разные man: Библиотечные вызовы )
  •  

    NAME

    SDL_AudioCVT- Audio Conversion Structure
     
    

    STRUCTURE DEFINITION

    typedef struct{
      int needed;
      Uint16 src_format;
      Uint16 dest_format;
      double rate_incr;
      Uint8 *buf;
      int len;
      int len_cvt;
      int len_mult;
      double len_ratio;
      void (*filters[10])(struct SDL_AudioCVT *cvt, Uint16 format);
      int filter_index;
    } SDL_AudioCVT;
    

     

    STRUCTURE DATA

    needed
    Set to one if the conversion is possible
    src_format
    Audio format of the source
    dest_format
    Audio format of the destination
    rate_incr
    Rate conversion increment
    buf
    Audio buffer
    len
    Length of the original audio buffer in bytes
    len_cvt
    Length of converted audio buffer in bytes (calculated)
    len_mult
    buf must be len*len_mult bytes in size(calculated)
    len_ratio
    Final audio size is len*len_ratio
    filters[10](..)
    Pointers to functions needed for this conversion
    filter_index
    Current conversion function
     

    DESCRIPTION

    The SDL_AudioCVT is used to convert audio data between different formats. A SDL_AudioCVT structure is created with the SDL_BuildAudioCVT function, while the actual conversion is done by the SDL_ConvertAudio function.

    Many of the fields in the SDL_AudioCVT structure should be considered private and their function will not be discussed here.

    Uint8 *buf
    int len
    int len_mult
    double len_ratio
     

    SEE ALSO

    SDL_BuildAudioCVT, SDL_ConvertAudio, SDL_AudioSpec


     

    Index

    NAME
    STRUCTURE DEFINITION
    STRUCTURE DATA
    DESCRIPTION
    SEE ALSO


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