forked from mirrors/nixpkgs
ac80d45419
this project hasn't been updated in 10 years, so adding patches that don't break the API should be ok. Patches: - A00: Make a52-state-t public - A01: Make it thread-safe (changing internal API by adding state objects) - A02: Quell common error - A03: Fix for automake vs autoconf
153 lines
5.5 KiB
Diff
153 lines
5.5 KiB
Diff
diff -Naur a52dec.old/include/a52.h a52dec.new/include/a52.h
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--- a52dec.old/include/a52.h 2002-01-28 06:37:54.000000000 +0100
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+++ a52dec.new/include/a52.h 2012-07-16 14:13:35.000000000 +0200
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@@ -30,7 +30,71 @@
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typedef double sample_t;
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#endif
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-typedef struct a52_state_s a52_state_t;
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+typedef struct {
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+ uint8_t bai; /* fine SNR offset, fast gain */
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+ uint8_t deltbae; /* delta bit allocation exists */
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+ int8_t deltba[50]; /* per-band delta bit allocation */
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+} ba_t;
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+
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+typedef struct {
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+ uint8_t exp[256]; /* decoded channel exponents */
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+ int8_t bap[256]; /* derived channel bit allocation */
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+} expbap_t;
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+
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+typedef struct {
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+ uint8_t fscod; /* sample rate */
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+ uint8_t halfrate; /* halfrate factor */
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+ uint8_t acmod; /* coded channels */
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+ uint8_t lfeon; /* coded lfe channel */
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+ sample_t clev; /* centre channel mix level */
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+ sample_t slev; /* surround channels mix level */
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+
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+ int output; /* type of output */
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+ sample_t level; /* output level */
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+ sample_t bias; /* output bias */
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+
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+ int dynrnge; /* apply dynamic range */
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+ sample_t dynrng; /* dynamic range */
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+ void * dynrngdata; /* dynamic range callback funtion and data */
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+ sample_t (* dynrngcall) (sample_t range, void * dynrngdata);
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+
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+ uint8_t chincpl; /* channel coupled */
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+ uint8_t phsflginu; /* phase flags in use (stereo only) */
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+ uint8_t cplstrtmant; /* coupling channel start mantissa */
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+ uint8_t cplendmant; /* coupling channel end mantissa */
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+ uint32_t cplbndstrc; /* coupling band structure */
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+ sample_t cplco[5][18]; /* coupling coordinates */
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+
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+ /* derived information */
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+ uint8_t cplstrtbnd; /* coupling start band (for bit allocation) */
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+ uint8_t ncplbnd; /* number of coupling bands */
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+
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+ uint8_t rematflg; /* stereo rematrixing */
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+
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+ uint8_t endmant[5]; /* channel end mantissa */
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+
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+ uint16_t bai; /* bit allocation information */
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+
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+ uint32_t * buffer_start;
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+ uint16_t lfsr_state; /* dither state */
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+ uint32_t bits_left;
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+ uint32_t current_word;
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+
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+ uint8_t csnroffst; /* coarse SNR offset */
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+ ba_t cplba; /* coupling bit allocation parameters */
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+ ba_t ba[5]; /* channel bit allocation parameters */
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+ ba_t lfeba; /* lfe bit allocation parameters */
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+
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+ uint8_t cplfleak; /* coupling fast leak init */
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+ uint8_t cplsleak; /* coupling slow leak init */
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+
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+ expbap_t cpl_expbap;
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+ expbap_t fbw_expbap[5];
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+ expbap_t lfe_expbap;
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+
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+ sample_t * samples;
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+ int downmixed;
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+} a52_state_t;
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#define A52_CHANNEL 0
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#define A52_MONO 1
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diff -Naur a52dec.old/liba52/a52_internal.h a52dec.new/liba52/a52_internal.h
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--- a52dec.old/liba52/a52_internal.h 2002-07-28 03:52:06.000000000 +0200
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+++ a52dec.new/liba52/a52_internal.h 2012-07-16 14:11:47.000000000 +0200
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@@ -21,72 +21,6 @@
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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-typedef struct {
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- uint8_t bai; /* fine SNR offset, fast gain */
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- uint8_t deltbae; /* delta bit allocation exists */
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- int8_t deltba[50]; /* per-band delta bit allocation */
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-} ba_t;
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-
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-typedef struct {
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- uint8_t exp[256]; /* decoded channel exponents */
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- int8_t bap[256]; /* derived channel bit allocation */
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-} expbap_t;
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-
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-struct a52_state_s {
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- uint8_t fscod; /* sample rate */
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- uint8_t halfrate; /* halfrate factor */
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- uint8_t acmod; /* coded channels */
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- uint8_t lfeon; /* coded lfe channel */
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- sample_t clev; /* centre channel mix level */
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- sample_t slev; /* surround channels mix level */
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-
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- int output; /* type of output */
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- sample_t level; /* output level */
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- sample_t bias; /* output bias */
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-
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- int dynrnge; /* apply dynamic range */
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- sample_t dynrng; /* dynamic range */
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- void * dynrngdata; /* dynamic range callback funtion and data */
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- sample_t (* dynrngcall) (sample_t range, void * dynrngdata);
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-
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- uint8_t chincpl; /* channel coupled */
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- uint8_t phsflginu; /* phase flags in use (stereo only) */
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- uint8_t cplstrtmant; /* coupling channel start mantissa */
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- uint8_t cplendmant; /* coupling channel end mantissa */
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- uint32_t cplbndstrc; /* coupling band structure */
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- sample_t cplco[5][18]; /* coupling coordinates */
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-
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- /* derived information */
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- uint8_t cplstrtbnd; /* coupling start band (for bit allocation) */
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- uint8_t ncplbnd; /* number of coupling bands */
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-
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- uint8_t rematflg; /* stereo rematrixing */
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-
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- uint8_t endmant[5]; /* channel end mantissa */
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-
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- uint16_t bai; /* bit allocation information */
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-
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- uint32_t * buffer_start;
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- uint16_t lfsr_state; /* dither state */
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- uint32_t bits_left;
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- uint32_t current_word;
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-
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- uint8_t csnroffst; /* coarse SNR offset */
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- ba_t cplba; /* coupling bit allocation parameters */
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- ba_t ba[5]; /* channel bit allocation parameters */
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- ba_t lfeba; /* lfe bit allocation parameters */
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-
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- uint8_t cplfleak; /* coupling fast leak init */
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- uint8_t cplsleak; /* coupling slow leak init */
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-
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- expbap_t cpl_expbap;
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- expbap_t fbw_expbap[5];
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- expbap_t lfe_expbap;
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-
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- sample_t * samples;
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- int downmixed;
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-};
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-
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#define LEVEL_PLUS6DB 2.0
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#define LEVEL_PLUS3DB 1.4142135623730951
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#define LEVEL_3DB 0.7071067811865476
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