From e202cc2580c97b69c1795ac59049c3a295b2d078 Mon Sep 17 00:00:00 2001 From: Justin Ruggles Date: Thu, 13 Nov 2008 22:38:38 +0000 Subject: revert r15812 (E-AC-3 Spectral Extension) pending further review Originally committed as revision 15818 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/ac3dec.h | 27 --------------------------- 1 file changed, 27 deletions(-) (limited to 'libavcodec/ac3dec.h') diff --git a/libavcodec/ac3dec.h b/libavcodec/ac3dec.h index 7d34837e0c..617080910b 100644 --- a/libavcodec/ac3dec.h +++ b/libavcodec/ac3dec.h @@ -42,11 +42,6 @@ #define AC3_MAX_COEFS 256 #define AC3_BLOCK_SIZE 256 #define MAX_BLOCKS 6 -#define SPX_MAX_BANDS 17 - -#define INT24_MIN -8388608 -#define INT24_MAX 8388607 -#define M_SQRT_POW2_15 181 typedef struct { AVCodecContext *avctx; ///< parent context @@ -93,26 +88,6 @@ typedef struct { int cpl_coords[AC3_MAX_CHANNELS][18]; ///< coupling coordinates (cplco) ///@} -///@defgroup spx spectral extension -///@{ - int spx_in_use[MAX_BLOCKS]; ///< spectral extension in use (spxinu) - int channel_in_spx[AC3_MAX_CHANNELS]; ///< channel in spectral extension (chinspx) - int spx_atten_code[AC3_MAX_CHANNELS]; ///< spx attenuation code (spxattencod) - int spx_coords_exist[AC3_MAX_CHANNELS]; ///< indicates if a channel has spx coords (spxcoe) - int spx_start_subband; ///< spx beginning frequency band (spxbegf) - int spx_start_freq; ///< spx start frequency bin - int spx_end_freq; ///< spx end frequency bin - int spx_copy_start_freq; ///< spx starting frequency for copying (copystartmant) - int num_spx_subbands; ///< number of spectral extension subbands - int num_spx_bands; ///< number of spectral extension bands (nspxbnds) - uint8_t spx_band_struct[SPX_MAX_BANDS]; ///< spectral extension band structure (spxbndstrc) - int spx_band_sizes[SPX_MAX_BANDS]; ///< number of bins in each band (spxbndsztab) - int first_spx_coords[AC3_MAX_CHANNELS]; ///< first spx coordinates states (firstspxcos) - int spx_noise_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx noise blending factor (nblendfact) - int spx_signal_blend[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spx signal blending factor (sblendfact) - int spx_coords[AC3_MAX_CHANNELS][SPX_MAX_BANDS]; ///< spectral extension coordinates (spxco) -///@} - ///@defgroup aht adaptive hybrid transform int channel_uses_aht[AC3_MAX_CHANNELS]; ///< channel AHT in use (chahtinu) int pre_mantissa[AC3_MAX_CHANNELS][AC3_MAX_COEFS][MAX_BLOCKS]; ///< pre-IDCT mantissas @@ -204,6 +179,4 @@ int ff_eac3_parse_header(AC3DecodeContext *s); */ void ff_eac3_decode_transform_coeffs_aht_ch(AC3DecodeContext *s, int ch); -void ff_eac3_apply_spectral_extension(AC3DecodeContext *s); - #endif /* AVCODEC_AC3DEC_H */ -- cgit v1.2.3