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Add OPUS_{GET|SET}_GAIN CTLs for adjusting output gain.

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This CTL was requested by Nicolas George for FFmpeg.
This commit is contained in:
Gregory Maxwell 2012-07-11 00:04:24 -04:00
parent c329045758
commit 28b41ae5ae
7 changed files with 193 additions and 11 deletions

35
celt/fixed_debug.h
View file

@ -47,6 +47,8 @@ extern long long celt_mips;
/** 16x32 multiplication, followed by a 16-bit shift right. Results fits in 32 bits */
#define MULT16_32_Q16(a,b) ADD32(MULT16_16((a),SHR32((b),16)), SHR32(MULT16_16SU((a),((b)&0x0000ffff)),16))
#define MULT16_32_P16(a,b) MULT16_32_PX(a,b,16)
#define QCONST16(x,bits) ((opus_val16)(.5+(x)*(((opus_val32)1)<<(bits))))
#define QCONST32(x,bits) ((opus_val32)(.5+(x)*(((opus_val32)1)<<(bits))))
@ -459,6 +461,39 @@ static inline int MULT16_32_QX_(int a, long long b, int Q, char *file, int line)
return res;
}
#define MULT16_32_PX(a, b, Q) MULT16_32_PX_(a, b, Q, __FILE__, __LINE__)
static inline int MULT16_32_PX_(int a, long long b, int Q, char *file, int line)
{
long long res;
if (!VERIFY_SHORT(a) || !VERIFY_INT(b))
{
fprintf (stderr, "MULT16_32_P%d: inputs are not short+int: %d %d in %s: line %d\n\n", Q, (int)a, (int)b, file, line);
#ifdef FIXED_DEBUG_ASSERT
celt_assert(0);
#endif
}
if (ABS32(b)>=((opus_val32)(1)<<(15+Q)))
{
fprintf (stderr, "MULT16_32_Q%d: second operand too large: %d %d in %s: line %d\n\n", Q, (int)a, (int)b, file, line);
#ifdef FIXED_DEBUG_ASSERT
celt_assert(0);
#endif
}
res = ((((long long)a)*(long long)b) + (((opus_val32)(1)<<Q)>>1))>> Q;
if (!VERIFY_INT(res))
{
fprintf (stderr, "MULT16_32_P%d: output is not int: %d*%d=%d in %s: line %d\n\n", Q, (int)a, (int)b,(int)res, file, line);
#ifdef FIXED_DEBUG_ASSERT
celt_assert(0);
#endif
}
if (Q==15)
celt_mips+=4;
else
celt_mips+=5;
return res;
}
#define MULT16_32_Q15(a,b) MULT16_32_QX(a,b,15)
#define MAC16_32_Q15(c,a,b) (celt_mips-=2,ADD32((c),MULT16_32_Q15((a),(b))))