diff options
Diffstat (limited to 'lib/ffmpeg/libavcodec/ac3.h')
| -rw-r--r-- | lib/ffmpeg/libavcodec/ac3.h | 21 |
1 files changed, 9 insertions, 12 deletions
diff --git a/lib/ffmpeg/libavcodec/ac3.h b/lib/ffmpeg/libavcodec/ac3.h index 9c8dc4870e..405e3cd0a3 100644 --- a/lib/ffmpeg/libavcodec/ac3.h +++ b/lib/ffmpeg/libavcodec/ac3.h @@ -27,13 +27,17 @@ #ifndef AVCODEC_AC3_H #define AVCODEC_AC3_H -#include "ac3tab.h" - #define AC3_MAX_CODED_FRAME_SIZE 3840 /* in bytes */ #define AC3_MAX_CHANNELS 6 /* including LFE channel */ -#define NB_BLOCKS 6 /* number of PCM blocks inside an AC-3 frame */ -#define AC3_FRAME_SIZE (NB_BLOCKS * 256) +#define AC3_MAX_COEFS 256 +#define AC3_BLOCK_SIZE 256 +#define AC3_MAX_BLOCKS 6 +#define AC3_FRAME_SIZE (AC3_MAX_BLOCKS * 256) +#define AC3_WINDOW_SIZE (AC3_BLOCK_SIZE * 2) +#define AC3_CRITICAL_BANDS 50 + +#include "ac3tab.h" /* exponent encoding strategy */ #define EXP_REUSE 0 @@ -111,7 +115,7 @@ typedef enum { EAC3_FRAME_TYPE_RESERVED } EAC3FrameType; -void ac3_common_init(void); +void ff_ac3_common_init(void); /** * Calculate the log power-spectral density of the input signal. @@ -177,11 +181,4 @@ void ff_ac3_bit_alloc_calc_bap(int16_t *mask, int16_t *psd, int start, int end, int snr_offset, int floor, const uint8_t *bap_tab, uint8_t *bap); -void ac3_parametric_bit_allocation(AC3BitAllocParameters *s, uint8_t *bap, - int8_t *exp, int start, int end, - int snr_offset, int fast_gain, int is_lfe, - int dba_mode, int dba_nsegs, - uint8_t *dba_offsets, uint8_t *dba_lengths, - uint8_t *dba_values); - #endif /* AVCODEC_AC3_H */ |