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add fields needed for E-AC-3 decoding to decode context

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Originally committed as revision 13714 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Justin Ruggles 2008-06-08 21:08:53 +00:00
parent 681f5c1271
commit bddadace8d
1 changed files with 21 additions and 0 deletions
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21
libavcodec/ac3dec.h
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@ -59,21 +59,41 @@ typedef struct {
int num_blocks; ///< number of audio blocks
int channel_mode; ///< channel mode (acmod)
int lfe_on; ///< lfe channel in use
int channel_map; ///< custom channel map
int center_mix_level; ///< Center mix level index
int surround_mix_level; ///< Surround mix level index
int eac3; ///< indicates if current frame is E-AC-3
///@}
///@defgroup audfrm frame syntax parameters
int snr_offset_strategy; ///< SNR offset strategy (snroffststr)
int block_switch_syntax; ///< block switch syntax enabled (blkswe)
int dither_flag_syntax; ///< dither flag syntax enabled (dithflage)
int bit_allocation_syntax; ///< bit allocation model syntax enabled (bamode)
int fast_gain_syntax; ///< fast gain codes enabled (frmfgaincode)
int dba_syntax; ///< delta bit allocation syntax enabled (dbaflde)
int skip_syntax; ///< skip field syntax enabled (skipflde)
///@}
///@defgroup cpl standard coupling
int cpl_in_use[MAX_BLOCKS]; ///< coupling in use (cplinu)
int cpl_strategy_exists[MAX_BLOCKS]; ///< coupling strategy exists (cplstre)
int channel_in_cpl[AC3_MAX_CHANNELS]; ///< channel in coupling (chincpl)
int phase_flags_in_use; ///< phase flags in use (phsflginu)
int phase_flags[18]; ///< phase flags (phsflg)
int num_cpl_subbands; ///< number of coupling sub bands (ncplsubnd)
int num_cpl_bands; ///< number of coupling bands (ncplbnd)
int cpl_band_struct[18]; ///< coupling band structure (cplbndstrc)
int firstchincpl; ///< first channel in coupling
int first_cpl_coords[AC3_MAX_CHANNELS]; ///< first coupling coordinates states (firstcplcos)
int cpl_coords[AC3_MAX_CHANNELS][18]; ///< coupling coordinates (cplco)
///@}
///@defgroup aht adaptive hybrid transform
int channel_uses_aht[AC3_MAX_CHANNELS]; ///< channel AHT in use (chahtinu)
int pre_mantissa[6][AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< pre-IDCT mantissas
///@}
///@defgroup channel channel
int fbw_channels; ///< number of full-bandwidth channels
int channels; ///< number of total channels
@ -107,6 +127,7 @@ typedef struct {
///@defgroup bitalloc bit allocation
AC3BitAllocParameters bit_alloc_params; ///< bit allocation parameters
int first_cpl_leak; ///< first coupling leak state (firstcplleak)
int snr_offset[AC3_MAX_CHANNELS]; ///< signal-to-noise ratio offsets (snroffst)
int fast_gain[AC3_MAX_CHANNELS]; ///< fast gain values/SMR's (fgain)
uint8_t bap[AC3_MAX_CHANNELS][AC3_MAX_COEFS]; ///< bit allocation pointers