Signed-off-by: Mans Rullgard <[email protected]>
---
libavcodec/mpegaudiodec.c | 30 ++++--------------------------
1 files changed, 4 insertions(+), 26 deletions(-)
diff --git a/libavcodec/mpegaudiodec.c b/libavcodec/mpegaudiodec.c
index b9d705b..6910d1f 100644
--- a/libavcodec/mpegaudiodec.c
+++ b/libavcodec/mpegaudiodec.c
@@ -269,27 +269,6 @@ static inline int l3_unscale(int value, int exponent)
return m;
}
-/* all integer n^(4/3) computation code */
-#define DEV_ORDER 13
-
-#define POW_FRAC_BITS 24
-#define POW_FRAC_ONE (1 << POW_FRAC_BITS)
-#define POW_FIX(a) ((int)((a) * POW_FRAC_ONE))
-#define POW_MULL(a,b) (((int64_t)(a) * (int64_t)(b)) >> POW_FRAC_BITS)
-
-static int dev_4_3_coefs[DEV_ORDER];
-
-static av_cold void int_pow_init(void)
-{
- int i, a;
-
- a = POW_FIX(1.0);
- for(i=0;i<DEV_ORDER;i++) {
- a = POW_MULL(a, POW_FIX(4.0 / 3.0) - i * POW_FIX(1.0)) / (i + 1);
- dev_4_3_coefs[i] = a;
- }
-}
-
static av_cold int decode_init(AVCodecContext * avctx)
{
MPADecodeContext *s = avctx->priv_data;
@@ -385,7 +364,6 @@ static av_cold int decode_init(AVCodecContext * avctx)
/* compute n ^ (4/3) and store it in mantissa/exp format */
- int_pow_init();
mpegaudio_tableinit();
for (i = 0; i < 4; i++)
@@ -1476,7 +1454,7 @@ static void compute_imdct(MPADecodeContext *s,
/* main layer3 decoding function */
static int mp_decode_layer3(MPADecodeContext *s)
{
- int nb_granules, main_data_begin, private_bits;
+ int nb_granules, main_data_begin;
int gr, ch, blocksplit_flag, i, j, k, n, bits_pos;
GranuleDef *g;
int16_t exponents[576]; //FIXME try INTFLOAT
@@ -1484,14 +1462,14 @@ static int mp_decode_layer3(MPADecodeContext *s)
/* read side info */
if (s->lsf) {
main_data_begin = get_bits(&s->gb, 8);
- private_bits = get_bits(&s->gb, s->nb_channels);
+ skip_bits(&s->gb, s->nb_channels);
nb_granules = 1;
} else {
main_data_begin = get_bits(&s->gb, 9);
if (s->nb_channels == 2)
- private_bits = get_bits(&s->gb, 3);
+ skip_bits(&s->gb, 3);
else
- private_bits = get_bits(&s->gb, 5);
+ skip_bits(&s->gb, 5);
nb_granules = 2;
for(ch=0;ch<s->nb_channels;ch++) {
s->granules[ch][0].scfsi = 0;/* all scale factors are transmitted
*/
--
1.7.4.5
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