Here's v3 to push the AC-3 ARMv8 NEON experiment a step further. This version implements 5 of the AC-3 encoder DSP functions, and adds checkasm tests where missing.
I've tested that the checkasm tests pass on aarch64 and x86. On AWS Graviton2 (t4g.medium), GCC 12.3: $ tests/checkasm/checkasm --bench --verbose --test=ac3dsp ... NEON: - ac3dsp.ac3_exponent_min [OK] - ac3dsp.ac3_extract_exponents [OK] - ac3dsp.float_to_fixed24 [OK] - ac3dsp.ac3_sum_square_butterfly_int32 [OK] - ac3dsp.ac3_sum_square_butterfly_float [OK] checkasm: all 20 tests passed ac3_exponent_min_reuse0_c: 9.0 ac3_exponent_min_reuse0_neon: 9.7 ac3_exponent_min_reuse1_c: 1037.5 ac3_exponent_min_reuse1_neon: 54.0 ac3_exponent_min_reuse2_c: 1820.7 ac3_exponent_min_reuse2_neon: 135.2 ac3_exponent_min_reuse3_c: 2080.5 ac3_exponent_min_reuse3_neon: 167.7 ac3_exponent_min_reuse4_c: 2493.2 ac3_exponent_min_reuse4_neon: 200.0 ac3_exponent_min_reuse5_c: 2970.0 ac3_exponent_min_reuse5_neon: 231.7 ac3_extract_exponents_n512_c: 1717.5 ac3_extract_exponents_n512_neon: 506.7 ac3_extract_exponents_n768_c: 2562.7 ac3_extract_exponents_n768_neon: 769.7 ac3_extract_exponents_n1024_c: 3389.2 ac3_extract_exponents_n1024_neon: 1019.0 ac3_extract_exponents_n1280_c: 4210.7 ac3_extract_exponents_n1280_neon: 1267.5 ac3_extract_exponents_n1536_c: 5071.5 ac3_extract_exponents_n1536_neon: 1522.0 ac3_extract_exponents_n1792_c: 5896.5 ac3_extract_exponents_n1792_neon: 1784.0 ac3_extract_exponents_n2048_c: 6779.2 ac3_extract_exponents_n2048_neon: 2051.0 ac3_extract_exponents_n2304_c: 7559.5 ac3_extract_exponents_n2304_neon: 2290.0 ac3_extract_exponents_n2560_c: 8397.2 ac3_extract_exponents_n2560_neon: 2552.5 ac3_extract_exponents_n2816_c: 9224.2 ac3_extract_exponents_n2816_neon: 2797.7 ac3_extract_exponents_n3072_c: 10026.2 ac3_extract_exponents_n3072_neon: 3047.7 ac3_sum_square_bufferfly_float_c: 1605.7 ac3_sum_square_bufferfly_float_neon: 365.7 ac3_sum_square_bufferfly_int32_c: 965.5 ac3_sum_square_bufferfly_int32_neon: 486.2 float_to_fixed24_c: 2453.7 float_to_fixed24_neon: 516.2 Geoff Hill (5): avcodec/ac3: Implement float_to_fixed24 for aarch64 NEON avcodec/ac3: Implement ac3_exponent_min for aarch64 NEON avcodec/ac3: Implement ac3_extract_exponents for aarch64 NEON avcodec/ac3: Implement sum_square_butterfly_int32 for aarch64 NEON avcodec/ac3: Implement sum_square_butterfly_float for aarch64 NEON libavcodec/aarch64/Makefile | 2 + libavcodec/aarch64/ac3dsp_init_aarch64.c | 50 +++++++++ libavcodec/aarch64/ac3dsp_neon.S | 125 ++++++++++++++++++++++ libavcodec/ac3dsp.c | 4 +- libavcodec/ac3dsp.h | 3 +- tests/checkasm/ac3dsp.c | 130 +++++++++++++++++++++++ 6 files changed, 312 insertions(+), 2 deletions(-) create mode 100644 libavcodec/aarch64/ac3dsp_init_aarch64.c create mode 100644 libavcodec/aarch64/ac3dsp_neon.S -- 2.44.0 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
