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Code Issues Releases Activity

Get rid of G726Tables.bits.

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Originally committed as revision 13816 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Michael Niedermayer 2008-06-19 10:52:47 +00:00
parent 05c9f3516c
commit 0e0d6cfd48
1 changed files with 8 additions and 9 deletions
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17
libavcodec/g726.c
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@ -63,7 +63,6 @@ static inline int sgn(int value)
} }
typedef struct G726Tables { typedef struct G726Tables {
int bits; /**< bits per sample */
const int* quant; /**< quantization table */ const int* quant; /**< quantization table */
const int16_t* iquant; /**< inverse quantization table */ const int16_t* iquant; /**< inverse quantization table */
const int16_t* W; /**< special table #1 ;-) */ const int16_t* W; /**< special table #1 ;-) */
@ -139,10 +138,10 @@ static const uint8_t F_tbl40[] =
6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 }; 6, 6, 5, 4, 3, 2, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 };
static const G726Tables G726Tables_pool[] = static const G726Tables G726Tables_pool[] =
{{ 2, quant_tbl16, iquant_tbl16, W_tbl16, F_tbl16 }, {{ quant_tbl16, iquant_tbl16, W_tbl16, F_tbl16 },
{ 3, quant_tbl24, iquant_tbl24, W_tbl24, F_tbl24 }, { quant_tbl24, iquant_tbl24, W_tbl24, F_tbl24 },
{ 4, quant_tbl32, iquant_tbl32, W_tbl32, F_tbl32 }, { quant_tbl32, iquant_tbl32, W_tbl32, F_tbl32 },
{ 5, quant_tbl40, iquant_tbl40, W_tbl40, F_tbl40 }}; { quant_tbl40, iquant_tbl40, W_tbl40, F_tbl40 }};
/** /**
@ -165,7 +164,7 @@ static inline uint8_t quant(G726Context* c, int d)
if (sign) if (sign)
i = ~i; i = ~i;
if (c->tbls.bits != 2 && i == 0) /* I'm not sure this is a good idea */ if (c->code_size != 2 && i == 0) /* I'm not sure this is a good idea */
i = 0xff; i = 0xff;
return i; return i;
@ -188,7 +187,7 @@ static int16_t g726_decode(G726Context* c, int I)
{ {
int dq, re_signal, pk0, fa1, i, tr, ylint, ylfrac, thr2, al, dq0; int dq, re_signal, pk0, fa1, i, tr, ylint, ylfrac, thr2, al, dq0;
Float11 f; Float11 f;
int I_sig= I >> (c->tbls.bits - 1); int I_sig= I >> (c->code_size - 1);
dq = inverse_quant(c, I); dq = inverse_quant(c, I);
@ -290,7 +289,7 @@ static int16_t g726_encode(G726Context* c, int16_t sig)
{ {
uint8_t i; uint8_t i;
i = quant(c, sig/4 - c->se) & ((1<<c->tbls.bits) - 1); i = quant(c, sig/4 - c->se) & ((1<<c->code_size) - 1);
g726_decode(c, i); g726_decode(c, i);
return i; return i;
} }
@ -316,7 +315,7 @@ static av_cold int g726_init(AVCodecContext * avctx)
return -1; return -1;
} }
g726_reset(c, index); g726_reset(c, index);
c->code_size = c->tbls.bits; c->code_size = index+2;
avctx->coded_frame = avcodec_alloc_frame(); avctx->coded_frame = avcodec_alloc_frame();
if (!avctx->coded_frame) if (!avctx->coded_frame)