From 1676b099948f7e68be5862b16053379aa5581284 Mon Sep 17 00:00:00 2001 From: Alex Converse Date: Fri, 16 Jul 2010 20:02:46 +0000 Subject: aacenc: Template quantize_and_encode_band_cost(). Originally committed as revision 24273 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/aaccoder.c | 70 +++++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 60 insertions(+), 10 deletions(-) (limited to 'libavcodec/aaccoder.c') diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c index 81ece4b23b..779102c49b 100644 --- a/libavcodec/aaccoder.c +++ b/libavcodec/aaccoder.c @@ -99,25 +99,27 @@ static const uint8_t aac_cb_maxval[12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16} * * @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_cost(struct AACEncContext *s, 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_cost(struct AACEncContext *s, } 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_cost(struct AACEncContext *s, 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_cost(struct AACEncContext *s, *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, -- cgit v1.2.3