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ac3enc: add float_to_fixed24() with x86-optimized versions to AC3DSPContext

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and use in scale_coefficients() for the floating-point AC-3 encoder.
This commit is contained in:
Justin Ruggles
2011-03-17 16:46:48 -04:00
parent 487fef2dcc
commit 0f999cfddb
6 changed files with 166 additions and 9 deletions
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libavcodec/ac3enc_float.c
+2 -3
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@@ -103,9 +103,8 @@ static int normalize_samples(AC3EncodeContext *s)
*/
static void scale_coefficients(AC3EncodeContext *s)
{
int i;
for (i = 0; i < AC3_MAX_COEFS * AC3_MAX_BLOCKS * s->channels; i++)
s->fixed_coef_buffer[i] = SCALE_FLOAT(s->mdct_coef_buffer[i], 24);
s->ac3dsp.float_to_fixed24(s->fixed_coef_buffer, s->mdct_coef_buffer,
AC3_MAX_COEFS * AC3_MAX_BLOCKS * s->channels);
}