[FFmpeg-cvslog] r24273 - trunk/libavcodec/aaccoder.c
alexc
subversion
Fri Jul 16 22:02:46 CEST 2010
Author: alexc
Date: Fri Jul 16 22:02:46 2010
New Revision: 24273
Log:
aacenc: Template quantize_and_encode_band_cost().
Modified:
trunk/libavcodec/aaccoder.c
Modified: trunk/libavcodec/aaccoder.c
==============================================================================
--- trunk/libavcodec/aaccoder.c Fri Jul 16 21:54:47 2010 (r24272)
+++ trunk/libavcodec/aaccoder.c Fri Jul 16 22:02:46 2010 (r24273)
@@ -99,25 +99,27 @@ static const uint8_t aac_cb_maxval[12] =
*
* @return quantization distortion
*/
-static float quantize_and_encode_band_cost(struct AACEncContext *s,
+static av_always_inline float quantize_and_encode_band_cost_template(
+ struct AACEncContext *s,
PutBitContext *pb, const float *in,
const float *scaled, int size, int scale_idx,
int cb, const float lambda, const float uplim,
- int *bits)
+ int *bits, int BT_ZERO, int BT_UNSIGNED,
+ int BT_PAIR, int BT_ESC)
{
const float IQ = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];
const float Q = ff_aac_pow2sf_tab[200 - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];
const float CLIPPED_ESCAPE = 165140.0f*IQ;
int i, j, k;
float cost = 0;
- const int dim = cb < FIRST_PAIR_BT ? 4 : 2;
+ const int dim = BT_PAIR ? 2 : 4;
int resbits = 0;
const float Q34 = sqrtf(Q * sqrtf(Q));
const int range = aac_cb_range[cb];
const int maxval = aac_cb_maxval[cb];
int off;
- if (!cb) {
+ if (BT_ZERO) {
for (i = 0; i < size; i++)
cost += in[i]*in[i];
if (bits)
@@ -128,8 +130,8 @@ static float quantize_and_encode_band_co
abs_pow34_v(s->scoefs, in, size);
scaled = s->scoefs;
}
- quantize_bands(s->qcoefs, in, scaled, size, Q34, !IS_CODEBOOK_UNSIGNED(cb), maxval);
- if (IS_CODEBOOK_UNSIGNED(cb)) {
+ quantize_bands(s->qcoefs, in, scaled, size, Q34, !BT_UNSIGNED, maxval);
+ if (BT_UNSIGNED) {
off = 0;
} else {
off = maxval;
@@ -146,11 +148,11 @@ static float quantize_and_encode_band_co
}
curbits = ff_aac_spectral_bits[cb-1][curidx];
vec = &ff_aac_codebook_vectors[cb-1][curidx*dim];
- if (IS_CODEBOOK_UNSIGNED(cb)) {
+ if (BT_UNSIGNED) {
for (k = 0; k < dim; k++) {
float t = fabsf(in[i+k]);
float di;
- if (vec[k] == 64.0f) { //FIXME: slow
+ if (BT_ESC && vec[k] == 64.0f) { //FIXME: slow
if (t >= CLIPPED_ESCAPE) {
di = t - CLIPPED_ESCAPE;
curbits += 21;
@@ -178,11 +180,11 @@ static float quantize_and_encode_band_co
return uplim;
if (pb) {
put_bits(pb, ff_aac_spectral_bits[cb-1][curidx], ff_aac_spectral_codes[cb-1][curidx]);
- if (IS_CODEBOOK_UNSIGNED(cb))
+ if (BT_UNSIGNED)
for (j = 0; j < dim; j++)
if (ff_aac_codebook_vectors[cb-1][curidx*dim+j] != 0.0f)
put_bits(pb, 1, in[i+j] < 0.0f);
- if (cb == ESC_BT) {
+ if (BT_ESC) {
for (j = 0; j < 2; j++) {
if (ff_aac_codebook_vectors[cb-1][curidx*2+j] == 64.0f) {
int coef = av_clip(quant(fabsf(in[i+j]), Q), 0, 8191);
@@ -200,6 +202,54 @@ static float quantize_and_encode_band_co
*bits = resbits;
return cost;
}
+
+#define QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NAME, BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC) \
+static float quantize_and_encode_band_cost_ ## NAME( \
+ struct AACEncContext *s, \
+ PutBitContext *pb, const float *in, \
+ const float *scaled, int size, int scale_idx, \
+ int cb, const float lambda, const float uplim, \
+ int *bits) { \
+ return quantize_and_encode_band_cost_template( \
+ s, pb, in, scaled, size, scale_idx, \
+ BT_ESC ? ESC_BT : cb, lambda, uplim, bits, \
+ BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC); \
+}
+
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ZERO, 1, 0, 0, 0)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SQUAD, 0, 0, 0, 0)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UQUAD, 0, 1, 0, 0)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SPAIR, 0, 0, 1, 0)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UPAIR, 0, 1, 1, 0)
+QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC, 0, 1, 1, 1)
+
+static float (*quantize_and_encode_band_cost_arr[])(
+ struct AACEncContext *s,
+ PutBitContext *pb, const float *in,
+ const float *scaled, int size, int scale_idx,
+ int cb, const float lambda, const float uplim,
+ int *bits) = {
+ quantize_and_encode_band_cost_ZERO,
+ quantize_and_encode_band_cost_SQUAD,
+ quantize_and_encode_band_cost_SQUAD,
+ quantize_and_encode_band_cost_UQUAD,
+ quantize_and_encode_band_cost_UQUAD,
+ quantize_and_encode_band_cost_SPAIR,
+ quantize_and_encode_band_cost_SPAIR,
+ quantize_and_encode_band_cost_UPAIR,
+ quantize_and_encode_band_cost_UPAIR,
+ quantize_and_encode_band_cost_UPAIR,
+ quantize_and_encode_band_cost_UPAIR,
+ quantize_and_encode_band_cost_ESC,
+};
+
+#define quantize_and_encode_band_cost( \
+ s, pb, in, scaled, size, scale_idx, cb, \
+ lambda, uplim, bits) \
+ quantize_and_encode_band_cost_arr[cb]( \
+ s, pb, in, scaled, size, scale_idx, cb, \
+ lambda, uplim, bits)
+
static float quantize_band_cost(struct AACEncContext *s, const float *in,
const float *scaled, int size, int scale_idx,
int cb, const float lambda, const float uplim,
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