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| author | Young Han Lee <cpumaker@gmail.com> | 2011-03-31 22:41:53 +0900 |
|---|---|---|
| committer | Janne Grunau <janne-libav@jannau.net> | 2011-04-04 09:12:37 +0200 |
| commit | 57cc1ad35fd488c7a879661498f6f3508038d5a9 (patch) | |
| tree | feabb13b9f5e73624605975681186c7645487ffb /libavcodec/aaccoder.c | |
| parent | 333e8943635b794099b1fb04e9d3fbb4b16a75b2 (diff) | |
| download | ffmpeg-57cc1ad35fd488c7a879661498f6f3508038d5a9.tar.gz | |
aacenc: reduce the number of loop index variables
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
Diffstat (limited to 'libavcodec/aaccoder.c')
| -rw-r--r-- | libavcodec/aaccoder.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/libavcodec/aaccoder.c b/libavcodec/aaccoder.c index ec49f7f419..e7f8cb0ed3 100644 --- a/libavcodec/aaccoder.c +++ b/libavcodec/aaccoder.c @@ -110,7 +110,7 @@ static av_always_inline float quantize_and_encode_band_cost_template( 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; + int i, j; float cost = 0; const int dim = BT_PAIR ? 2 : 4; int resbits = 0; @@ -149,10 +149,10 @@ static av_always_inline float quantize_and_encode_band_cost_template( curbits = ff_aac_spectral_bits[cb-1][curidx]; vec = &ff_aac_codebook_vectors[cb-1][curidx*dim]; if (BT_UNSIGNED) { - for (k = 0; k < dim; k++) { - float t = fabsf(in[i+k]); + for (j = 0; j < dim; j++) { + float t = fabsf(in[i+j]); float di; - if (BT_ESC && vec[k] == 64.0f) { //FIXME: slow + if (BT_ESC && vec[j] == 64.0f) { //FIXME: slow if (t >= CLIPPED_ESCAPE) { di = t - CLIPPED_ESCAPE; curbits += 21; @@ -162,15 +162,15 @@ static av_always_inline float quantize_and_encode_band_cost_template( curbits += av_log2(c)*2 - 4 + 1; } } else { - di = t - vec[k]*IQ; + di = t - vec[j]*IQ; } - if (vec[k] != 0.0f) + if (vec[j] != 0.0f) curbits++; rd += di*di; } } else { - for (k = 0; k < dim; k++) { - float di = in[i+k] - vec[k]*IQ; + for (j = 0; j < dim; j++) { + float di = in[i+j] - vec[j]*IQ; rd += di*di; } } |