diff options
Diffstat (limited to 'libavcodec/ac3.h')
-rw-r--r-- | libavcodec/ac3.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/libavcodec/ac3.h b/libavcodec/ac3.h index 0def3b06cc..9c8dc4870e 100644 --- a/libavcodec/ac3.h +++ b/libavcodec/ac3.h @@ -114,7 +114,7 @@ typedef enum { void ac3_common_init(void); /** - * Calculates the log power-spectral density of the input signal. + * Calculate the log power-spectral density of the input signal. * This gives a rough estimate of signal power in the frequency domain by using * the spectral envelope (exponents). The psd is also separately grouped * into critical bands for use in the calculating the masking curve. @@ -131,7 +131,7 @@ void ff_ac3_bit_alloc_calc_psd(int8_t *exp, int start, int end, int16_t *psd, int16_t *band_psd); /** - * Calculates the masking curve. + * Calculate the masking curve. * First, the excitation is calculated using parameters in s and the signal * power in each critical band. The excitation is compared with a predefined * hearing threshold table to produce the masking curve. If delta bit @@ -159,7 +159,7 @@ int ff_ac3_bit_alloc_calc_mask(AC3BitAllocParameters *s, int16_t *band_psd, int16_t *mask); /** - * Calculates bit allocation pointers. + * Calculate bit allocation pointers. * The SNR is the difference between the masking curve and the signal. AC-3 * uses this value for each frequency bin to allocate bits. The snroffset * parameter is a global adjustment to the SNR for all bins. |