-
- #ifndef LAME_GLOBAL_FLAGS_H
- #define LAME_GLOBAL_FLAGS_H
-
- struct lame_internal_flags;
- typedef struct lame_internal_flags lame_internal_flags;
-
-
- typedef enum short_block_e {
- short_block_not_set = -1, /* allow LAME to decide */
- short_block_allowed = 0, /* LAME may use them, even different block types for L/R */
- short_block_coupled, /* LAME may use them, but always same block types in L/R */
- short_block_dispensed, /* LAME will not use short blocks, long blocks only */
- short_block_forced /* LAME will not use long blocks, short blocks only */
- } short_block_t;
-
- /***********************************************************************
- *
- * Control Parameters set by User. These parameters are here for
- * backwards compatibility with the old, non-shared lib API.
- * Please use the lame_set_variablename() functions below
- *
- *
- ***********************************************************************/
- struct lame_global_struct {
- /* input description */
- unsigned long num_samples; /* number of samples. default=2^32-1 */
- int num_channels; /* input number of channels. default=2 */
- int in_samplerate; /* input_samp_rate in Hz. default=44.1 kHz */
- int out_samplerate; /* output_samp_rate.
- default: LAME picks best value
- at least not used for MP3 decoding:
- Remember 44.1 kHz MP3s and AC97 */
- float scale; /* scale input by this amount before encoding
- at least not used for MP3 decoding */
- float scale_left; /* scale input of channel 0 (left) by this
- amount before encoding */
- float scale_right; /* scale input of channel 1 (right) by this
- amount before encoding */
-
- /* general control params */
- int analysis; /* collect data for a MP3 frame analyzer? */
- int bWriteVbrTag; /* add Xing VBR tag? */
- int decode_only; /* use lame/mpglib to convert mp3 to wav */
- int quality; /* quality setting 0=best, 9=worst default=5 */
- MPEG_mode mode; /* see enum in lame.h
- default = LAME picks best value */
- int mode_fixed; /* ignored */
- int force_ms; /* force M/S mode. requires mode=1 */
- int free_format; /* use free format? default=0 */
- int findReplayGain; /* find the RG value? default=0 */
- int decode_on_the_fly; /* decode on the fly? default=0 */
-
- /*
- * set either brate>0 or compression_ratio>0, LAME will compute
- * the value of the variable not set.
- * Default is compression_ratio = 11.025
- */
- int brate; /* bitrate */
- float compression_ratio; /* sizeof(wav file)/sizeof(mp3 file) */
-
-
- /* frame params */
- int copyright; /* mark as copyright. default=0 */
- int original; /* mark as original. default=1 */
- int error_protection; /* use 2 bytes per frame for a CRC
- checksum. default=0 */
- int extension; /* the MP3 'private extension' bit.
- Meaningless */
- int strict_ISO; /* enforce ISO spec as much as possible */
-
- int disable_reservoir; /* use bit reservoir? */
-
- /* quantization/noise shaping */
- int quant_comp;
- int quant_comp_short;
- int experimentalY;
- int exp_nspsytune;
-
- double newmsfix;
- int preset_expopts;
- int preset;
-
- /* VBR control */
- vbr_mode VBR;
- int VBR_q;
- int VBR_mean_bitrate_kbps;
- int VBR_min_bitrate_kbps;
- int VBR_max_bitrate_kbps;
- int VBR_hard_min; /* strictly enforce VBR_min_bitrate
- normaly, it will be violated for analog
- silence */
-
-
- /* resampling and filtering */
- int lowpassfreq; /* freq in Hz. 0=lame choses.
- -1=no filter */
- int highpassfreq; /* freq in Hz. 0=lame choses.
- -1=no filter */
- int lowpasswidth; /* freq width of filter, in Hz
- (default=15%) */
- int highpasswidth; /* freq width of filter, in Hz
- (default=15%) */
-
-
-
- /*
- * psycho acoustics and other arguments which you should not change
- * unless you know what you are doing
- */
- int psymodel; /* select psychoacoustic model */
- float maskingadjust;
- float maskingadjust_short;
- int ATHonly; /* only use ATH */
- int ATHshort; /* only use ATH for short blocks */
- int noATH; /* disable ATH */
- int ATHtype; /* select ATH formula */
- float ATHcurve; /* change ATH formula 4 shape */
- float ATHlower; /* lower ATH by this many db */
- int athaa_type; /* select ATH auto-adjust scheme */
- int athaa_loudapprox; /* select ATH auto-adjust loudness calc */
- float athaa_sensitivity; /* dB, tune active region of auto-level */
- int cwlimit; /* predictability limit */
- short_block_t short_blocks;
- /* int allow_diff_short; allow blocktypes to differ between
- channels? */
- int useTemporal; /* use temporal masking effect */
- float interChRatio;
- /* int no_short_blocks; disable short blocks */
- int emphasis; /* Input PCM is emphased PCM (for
- instance from one of the rarely
- emphased CDs), it is STRONGLY not
- recommended to use this, because
- psycho does not take it into account,
- and last but not least many decoders
- don't care about these bits */
- float msfix; /* Naoki's adjustment of Mid/Side maskings */
-
- int tune; /* 0 off, 1 on */
- float tune_value_a; /* used to pass values for debugging and stuff */
-
- int sparsing;
- FLOAT sparse_low;
- FLOAT sparse_high;
-
- struct {
- void (*msgf) (const char *format, va_list ap);
- void (*debugf)(const char *format, va_list ap);
- void (*errorf)(const char *format, va_list ap);
- } report;
-
- /************************************************************************/
- /* internal variables, do not set... */
- /* provided because they may be of use to calling application */
- /************************************************************************/
-
- int version; /* 0=MPEG-2/2.5 1=MPEG-1 */
- int encoder_delay;
- int encoder_padding; /* number of samples of padding appended to input */
- int framesize;
- int frameNum; /* number of frames encoded */
- int lame_allocated_gfp; /* is this struct owned by calling
- program or lame? */
-
-
-
- /**************************************************************************/
- /* more internal variables are stored in this structure: */
- /**************************************************************************/
- lame_internal_flags *internal_flags;
-
-
- /* VBR tag data */
- int TotalFrameSize;
- int nVbrNumFrames;
- /*int nVbrFrameBufferSize;*/
- /*int* pVbrFrames; */
-
- struct {
- int integer[16];
- float real[16];
- void *pointer[16];
- } exp_nspsytune2;
-
- struct {
- int mmx;
- int amd3dnow;
- int sse;
-
- } asm_optimizations;
- } ;
-
- #endif /* LAME_GLOBAL_FLAGS_H */
-
root