You cannot count on them being present on all systems, and you cannot include libm.h in a host tool, so just hard code baseline implementations.
Signed-off-by: Derek Buitenhuis <[email protected]> --- libavcodec/cbrt_tablegen.h | 2 +- libavcodec/mpegaudio_tablegen.h | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/libavcodec/cbrt_tablegen.h b/libavcodec/cbrt_tablegen.h index 01963a3..1625c6f 100644 --- a/libavcodec/cbrt_tablegen.h +++ b/libavcodec/cbrt_tablegen.h @@ -41,7 +41,7 @@ static void cbrt_tableinit(void) float f; uint32_t i; } f; - f.f = cbrtf(i) * i; + f.f = powf(i, 1.0 / 3.0) * i; cbrt_tab[i] = f.i; } } diff --git a/libavcodec/mpegaudio_tablegen.h b/libavcodec/mpegaudio_tablegen.h index a222f2c..b36daaa 100644 --- a/libavcodec/mpegaudio_tablegen.h +++ b/libavcodec/mpegaudio_tablegen.h @@ -47,7 +47,7 @@ static void mpegaudio_tableinit(void) double value = i / 4; double f, fm; int e, m; - f = value * cbrtf(value) * pow(2, (i & 3) * 0.25); + f = value * powf(value, 1.0 / 3.0) * pow(2, (i & 3) * 0.25); fm = frexp(f, &e); m = (uint32_t)(fm * (1LL << 31) + 0.5); e += FRAC_BITS - 31 + 5 - 100; @@ -58,7 +58,7 @@ static void mpegaudio_tableinit(void) } for (exponent = 0; exponent < 512; exponent++) { for (value = 0; value < 16; value++) { - double f = (double)value * cbrtf(value) * pow(2, (exponent - 400) * 0.25 + FRAC_BITS + 5); + double f = (double)value * powf(value, 1.0 / 3.0) * pow(2, (exponent - 400) * 0.25 + FRAC_BITS + 5); expval_table_fixed[exponent][value] = llrint(f); expval_table_float[exponent][value] = f; } -- 1.7.10.4 _______________________________________________ libav-devel mailing list [email protected] https://lists.libav.org/mailman/listinfo/libav-devel
