Layer I

Functions
static mad_fixed_t	I_sample (struct mad_bitptr *ptr, unsigned int nb)
	Decodes one requantized Layer I sample from a bitstream.
int	mad_layer_I (struct mad_stream *stream, struct mad_frame *frame)
	Decodes a single Layer I frame.
Variables
static mad_fixed_t const	linear_table [14]
	linear scaling table

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Function Documentation

static mad_fixed_t I_sample	(	struct mad_bitptr *	ptr,
		unsigned int	nb
	)			[static]

Decodes one requantized Layer I sample from a bitstream.

Definition at line 80 of file layer12.c.

References linear_table, mad_bit_read(), MAD_F_FRACBITS, mad_f_mul, and MAD_F_ONE.

Referenced by mad_layer_I().

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int mad_layer_I	(	struct mad_stream *	stream,
		struct mad_frame *	frame
	)

Decodes a single Layer I frame.

Definition at line 108 of file layer12.c.

References mad_header::crc_check, mad_header::crc_target, mad_stream::error, mad_header::flags, mad_frame::header, I_sample(), mad_bit_crc(), mad_bit_read(), MAD_ERROR_BADBITALLOC, MAD_ERROR_BADCRC, MAD_ERROR_BADSCALEFACTOR, mad_f_mul, MAD_FLAG_I_STEREO, MAD_FLAG_PROTECTION, MAD_MODE_JOINT_STEREO, MAD_NCHANNELS, MAD_OPTION_IGNORECRC, mad_header::mode, mad_header::mode_extension, mad_frame::options, mad_stream::ptr, s, mad_frame::sbsample, and sf_table.

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Variable Documentation

mad_fixed_t const linear_table[14] [static]

Initial value:

 {
  MAD_F(0x15555555),  
  MAD_F(0x12492492),  
  MAD_F(0x11111111),  
  MAD_F(0x10842108),  
  MAD_F(0x10410410),  
  MAD_F(0x10204081),  
  MAD_F(0x10101010),  
  MAD_F(0x10080402),  
  MAD_F(0x10040100),  
  MAD_F(0x10020040),  
  MAD_F(0x10010010),  
  MAD_F(0x10008004),  
  MAD_F(0x10004001),  
  MAD_F(0x10002000)   
}

linear scaling table

Definition at line 59 of file layer12.c.

Referenced by I_sample().