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aacenc: Template quantize_and_encode_band_cost().
Originally committed as revision 24273 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Alex Converse
parent
6f323f1251
commit
1676b09994
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@ -99,25 +99,27 @@ static const uint8_t aac_cb_maxval[12] = {0, 1, 1, 2, 2, 4, 4, 7, 7, 12, 12, 16}
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*
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* @return quantization distortion
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*/
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static float quantize_and_encode_band_cost(struct AACEncContext *s,
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static av_always_inline float quantize_and_encode_band_cost_template(
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struct AACEncContext *s,
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PutBitContext *pb, const float *in,
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const float *scaled, int size, int scale_idx,
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int cb, const float lambda, const float uplim,
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int *bits)
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int *bits, int BT_ZERO, int BT_UNSIGNED,
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int BT_PAIR, int BT_ESC)
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{
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const float IQ = ff_aac_pow2sf_tab[200 + scale_idx - SCALE_ONE_POS + SCALE_DIV_512];
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const float Q = ff_aac_pow2sf_tab[200 - scale_idx + SCALE_ONE_POS - SCALE_DIV_512];
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const float CLIPPED_ESCAPE = 165140.0f*IQ;
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int i, j, k;
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float cost = 0;
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const int dim = cb < FIRST_PAIR_BT ? 4 : 2;
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const int dim = BT_PAIR ? 2 : 4;
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int resbits = 0;
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const float Q34 = sqrtf(Q * sqrtf(Q));
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const int range = aac_cb_range[cb];
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const int maxval = aac_cb_maxval[cb];
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int off;
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if (!cb) {
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if (BT_ZERO) {
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for (i = 0; i < size; i++)
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cost += in[i]*in[i];
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if (bits)
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@ -128,8 +130,8 @@ static float quantize_and_encode_band_cost(struct AACEncContext *s,
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abs_pow34_v(s->scoefs, in, size);
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scaled = s->scoefs;
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}
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quantize_bands(s->qcoefs, in, scaled, size, Q34, !IS_CODEBOOK_UNSIGNED(cb), maxval);
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if (IS_CODEBOOK_UNSIGNED(cb)) {
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quantize_bands(s->qcoefs, in, scaled, size, Q34, !BT_UNSIGNED, maxval);
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if (BT_UNSIGNED) {
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off = 0;
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} else {
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off = maxval;
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@ -146,11 +148,11 @@ static float quantize_and_encode_band_cost(struct AACEncContext *s,
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}
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curbits = ff_aac_spectral_bits[cb-1][curidx];
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vec = &ff_aac_codebook_vectors[cb-1][curidx*dim];
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if (IS_CODEBOOK_UNSIGNED(cb)) {
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if (BT_UNSIGNED) {
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for (k = 0; k < dim; k++) {
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float t = fabsf(in[i+k]);
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float di;
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if (vec[k] == 64.0f) { //FIXME: slow
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if (BT_ESC && vec[k] == 64.0f) { //FIXME: slow
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if (t >= CLIPPED_ESCAPE) {
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di = t - CLIPPED_ESCAPE;
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curbits += 21;
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@ -178,11 +180,11 @@ static float quantize_and_encode_band_cost(struct AACEncContext *s,
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return uplim;
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if (pb) {
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put_bits(pb, ff_aac_spectral_bits[cb-1][curidx], ff_aac_spectral_codes[cb-1][curidx]);
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if (IS_CODEBOOK_UNSIGNED(cb))
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if (BT_UNSIGNED)
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for (j = 0; j < dim; j++)
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if (ff_aac_codebook_vectors[cb-1][curidx*dim+j] != 0.0f)
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put_bits(pb, 1, in[i+j] < 0.0f);
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if (cb == ESC_BT) {
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if (BT_ESC) {
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for (j = 0; j < 2; j++) {
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if (ff_aac_codebook_vectors[cb-1][curidx*2+j] == 64.0f) {
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int coef = av_clip(quant(fabsf(in[i+j]), Q), 0, 8191);
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@ -200,6 +202,54 @@ static float quantize_and_encode_band_cost(struct AACEncContext *s,
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*bits = resbits;
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return cost;
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}
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#define QUANTIZE_AND_ENCODE_BAND_COST_FUNC(NAME, BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC) \
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static float quantize_and_encode_band_cost_ ## NAME( \
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struct AACEncContext *s, \
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PutBitContext *pb, const float *in, \
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const float *scaled, int size, int scale_idx, \
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int cb, const float lambda, const float uplim, \
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int *bits) { \
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return quantize_and_encode_band_cost_template( \
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s, pb, in, scaled, size, scale_idx, \
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BT_ESC ? ESC_BT : cb, lambda, uplim, bits, \
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BT_ZERO, BT_UNSIGNED, BT_PAIR, BT_ESC); \
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}
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ZERO, 1, 0, 0, 0)
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SQUAD, 0, 0, 0, 0)
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UQUAD, 0, 1, 0, 0)
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(SPAIR, 0, 0, 1, 0)
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(UPAIR, 0, 1, 1, 0)
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QUANTIZE_AND_ENCODE_BAND_COST_FUNC(ESC, 0, 1, 1, 1)
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static float (*quantize_and_encode_band_cost_arr[])(
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struct AACEncContext *s,
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PutBitContext *pb, const float *in,
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const float *scaled, int size, int scale_idx,
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int cb, const float lambda, const float uplim,
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int *bits) = {
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quantize_and_encode_band_cost_ZERO,
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quantize_and_encode_band_cost_SQUAD,
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quantize_and_encode_band_cost_SQUAD,
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quantize_and_encode_band_cost_UQUAD,
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quantize_and_encode_band_cost_UQUAD,
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quantize_and_encode_band_cost_SPAIR,
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quantize_and_encode_band_cost_SPAIR,
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quantize_and_encode_band_cost_UPAIR,
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quantize_and_encode_band_cost_UPAIR,
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quantize_and_encode_band_cost_UPAIR,
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quantize_and_encode_band_cost_UPAIR,
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quantize_and_encode_band_cost_ESC,
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};
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#define quantize_and_encode_band_cost( \
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s, pb, in, scaled, size, scale_idx, cb, \
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lambda, uplim, bits) \
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quantize_and_encode_band_cost_arr[cb]( \
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s, pb, in, scaled, size, scale_idx, cb, \
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lambda, uplim, bits)
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static float quantize_band_cost(struct AACEncContext *s, const float *in,
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const float *scaled, int size, int scale_idx,
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int cb, const float lambda, const float uplim,
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