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| author | Vitor Sessak <vitor1001@gmail.com> | 2010-01-16 03:44:17 +0000 |
|---|---|---|
| committer | Vitor Sessak <vitor1001@gmail.com> | 2010-01-16 03:44:17 +0000 |
| commit | d79c06b2adb67447e7ebffd95384e9a12e102a7f (patch) | |
| tree | 66cd371957a55933e4aa2455c484dc081097f7f9 /libavcodec/sipr.c | |
| parent | 65323ed279c79a9e033b873beee6d5b3349cf2c4 (diff) | |
| download | ffmpeg-d79c06b2adb67447e7ebffd95384e9a12e102a7f.tar.gz | |
Allow a SIPR table to be used by the upcoming SIPR16k decoder
Originally committed as revision 21233 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/sipr.c')
| -rw-r--r-- | libavcodec/sipr.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libavcodec/sipr.c b/libavcodec/sipr.c index 2db018ce53..78bf8a2a69 100644 --- a/libavcodec/sipr.c +++ b/libavcodec/sipr.c @@ -110,6 +110,13 @@ static const SiprModeParam modes[MODE_COUNT] = { } }; +const float ff_pow_0_5[] = { + 1.0/(1 << 1), 1.0/(1 << 2), 1.0/(1 << 3), 1.0/(1 << 4), + 1.0/(1 << 5), 1.0/(1 << 6), 1.0/(1 << 7), 1.0/(1 << 8), + 1.0/(1 << 9), 1.0/(1 << 10), 1.0/(1 << 11), 1.0/(1 << 12), + 1.0/(1 << 13), 1.0/(1 << 14), 1.0/(1 << 15), 1.0/(1 << 16) +}; + static void dequant(float *out, const int *idx, const float *cbs[]) { int i; @@ -273,7 +280,7 @@ static void postfilter_5k0(SiprContext *ctx, const float *lpc, float *samples) for (i = 0; i < LP_FILTER_ORDER; i++) { lpc_d[i] = lpc[i] * ff_pow_0_75[i]; - lpc_n[i] = lpc[i] * pow_0_5 [i]; + lpc_n[i] = lpc[i] * ff_pow_0_5 [i]; }; memcpy(pole_out - LP_FILTER_ORDER, ctx->postfilter_mem, |