diff options
Diffstat (limited to 'lib/liblame/libmp3lame/lame_global_flags.h')
| -rw-r--r-- | lib/liblame/libmp3lame/lame_global_flags.h | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/lib/liblame/libmp3lame/lame_global_flags.h b/lib/liblame/libmp3lame/lame_global_flags.h new file mode 100644 index 0000000000..03bcfc710b --- /dev/null +++ b/lib/liblame/libmp3lame/lame_global_flags.h @@ -0,0 +1,175 @@ +#ifndef LAME_GLOBAL_FLAGS_H +#define LAME_GLOBAL_FLAGS_H + +#ifndef lame_internal_flags_defined +#define lame_internal_flags_defined +struct lame_internal_flags; +typedef struct lame_internal_flags lame_internal_flags; +#endif + + +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 { + unsigned int class_id; + /* 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 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 */ + int write_id3tag_automatic; /* 1 (default) writes ID3 tags, 0 not */ + + /* + * 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 extension; /* the MP3 'private extension' bit. + Meaningless */ + 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 */ + int error_protection; /* use 2 bytes per frame for a CRC + checksum. default=0 */ + 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 experimentalZ; + int exp_nspsytune; + + int preset; + + /* VBR control */ + vbr_mode VBR; + float VBR_q_frac; /* Range [0,...,1[ */ + int VBR_q; /* Range [0,...,9] */ + 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 + */ + 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 */ + short_block_t short_blocks; + int useTemporal; /* use temporal masking effect */ + float interChRatio; + 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 */ + + 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; + + + struct { + int mmx; + int amd3dnow; + int sse; + + } asm_optimizations; +}; + +#endif /* LAME_GLOBAL_FLAGS_H */ |