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Viewing changes to ffmpeg/libavcodec/x86/ac3dsp_mmx.c

  • Committer: Package Import Robot
  • Author(s): Reinhard Tartler
  • Date: 2012-01-12 22:23:28 UTC
  • mfrom: (0.4.7 sid)
  • mto: This revision was merged to the branch mainline in revision 76.
  • Revision ID: package-import@ubuntu.com-20120112222328-8jqdyodym3p84ygu
Tags: 2:1.0~rc4.dfsg1+svn34540-1
* New upstream snapshot
* upload to unstable

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ffmpeg/libavcodec/x86/ac3dsp_mmx.c
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extern int ff_ac3_compute_mantissa_size_sse2(uint16_t mant_cnt[6][16]);
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extern void ff_ac3_extract_exponents_3dnow(uint8_t *exp, int32_t *coef, int nb_coefs);
 
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extern void ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs);
 
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extern void ff_ac3_extract_exponents_ssse3(uint8_t *exp, int32_t *coef, int nb_coefs);
 
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av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact)
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{
 
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#if HAVE_YASM
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    int mm_flags = av_get_cpu_flags();
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#if HAVE_YASM
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    if (mm_flags & AV_CPU_FLAG_MMX) {
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        c->ac3_exponent_min = ff_ac3_exponent_min_mmx;
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        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_mmx;
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        c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx;
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    }
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    if (mm_flags & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) {
 
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        c->extract_exponents = ff_ac3_extract_exponents_3dnow;
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        if (!bit_exact) {
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            c->float_to_fixed24 = ff_float_to_fixed24_3dnow;
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        }
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        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2;
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        c->float_to_fixed24 = ff_float_to_fixed24_sse2;
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        c->compute_mantissa_size = ff_ac3_compute_mantissa_size_sse2;
 
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        c->extract_exponents = ff_ac3_extract_exponents_sse2;
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        if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) {
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            c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2;
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            c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2;
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    }
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    if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSSE3) {
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        c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_ssse3;
 
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        if (!(mm_flags & AV_CPU_FLAG_ATOM)) {
 
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            c->extract_exponents = ff_ac3_extract_exponents_ssse3;
 
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        }
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    }
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#endif
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}