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| author | Nathan Caldwell <saintdev@gmail.com> | 2011-12-14 19:43:56 -0700 |
|---|---|---|
| committer | Alex Converse <alex.converse@gmail.com> | 2012-01-23 11:40:46 -0800 |
| commit | 9b8e2a870957293898998209c6e9bed290cc9bef (patch) | |
| tree | 64df91d37b8580b9b1d0b45fe91d2adf5a3846ee /libavcodec/aacpsy.c | |
| parent | 04af2efaae661fd48334bab52f6561450a403f20 (diff) | |
| download | ffmpeg-streaming-9b8e2a870957293898998209c6e9bed290cc9bef.zip ffmpeg-streaming-9b8e2a870957293898998209c6e9bed290cc9bef.tar.gz | |
aacenc: Deinterleave input samples before processing.
Signed-off-by: Alex Converse <alex.converse@gmail.com>
Diffstat (limited to 'libavcodec/aacpsy.c')
| -rw-r--r-- | libavcodec/aacpsy.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/libavcodec/aacpsy.c b/libavcodec/aacpsy.c index 5e9e391..8ee393a 100644 --- a/libavcodec/aacpsy.c +++ b/libavcodec/aacpsy.c @@ -400,7 +400,7 @@ static av_unused FFPsyWindowInfo psy_3gpp_window(FFPsyContext *ctx, int stay_short = 0; for (i = 0; i < 8; i++) { for (j = 0; j < 128; j++) { - v = iir_filter(la[(i*128+j)*ctx->avctx->channels], pch->iir_state); + v = iir_filter(la[i*128+j], pch->iir_state); sum += v*v; } s[i] = sum; @@ -794,18 +794,17 @@ static FFPsyWindowInfo psy_lame_window(FFPsyContext *ctx, const float *audio, float attack_intensity[(AAC_NUM_BLOCKS_SHORT + 1) * PSY_LAME_NUM_SUBBLOCKS]; float energy_subshort[(AAC_NUM_BLOCKS_SHORT + 1) * PSY_LAME_NUM_SUBBLOCKS]; float energy_short[AAC_NUM_BLOCKS_SHORT + 1] = { 0 }; - int chans = ctx->avctx->channels; - const float *firbuf = la + (AAC_BLOCK_SIZE_SHORT/4 - PSY_LAME_FIR_LEN) * chans; + const float *firbuf = la + (AAC_BLOCK_SIZE_SHORT/4 - PSY_LAME_FIR_LEN); int j, att_sum = 0; /* LAME comment: apply high pass filter of fs/4 */ for (i = 0; i < AAC_BLOCK_SIZE_LONG; i++) { float sum1, sum2; - sum1 = firbuf[(i + ((PSY_LAME_FIR_LEN - 1) / 2)) * chans]; + sum1 = firbuf[i + (PSY_LAME_FIR_LEN - 1) / 2]; sum2 = 0.0; for (j = 0; j < ((PSY_LAME_FIR_LEN - 1) / 2) - 1; j += 2) { - sum1 += psy_fir_coeffs[j] * (firbuf[(i + j) * chans] + firbuf[(i + PSY_LAME_FIR_LEN - j) * chans]); - sum2 += psy_fir_coeffs[j + 1] * (firbuf[(i + j + 1) * chans] + firbuf[(i + PSY_LAME_FIR_LEN - j - 1) * chans]); + sum1 += psy_fir_coeffs[j] * (firbuf[i + j] + firbuf[i + PSY_LAME_FIR_LEN - j]); + sum2 += psy_fir_coeffs[j + 1] * (firbuf[i + j + 1] + firbuf[i + PSY_LAME_FIR_LEN - j - 1]); } /* NOTE: The LAME psymodel expects it's input in the range -32768 to 32768. Tuning this for normalized floats would be difficult. */ hpfsmpl[i] = (sum1 + sum2) * 32768.0f; |
