Files
FFmpeg/libavcodec
Ramiro Polla 3bfce2a104 avcodec/x86/mpegvideoencdsp: speed up draw_edges_mmx by using memcpy()
The mmx memory copy code is not nearly as efficient as memcpy(), which
would make draw_edges_mmx much slower than draw_edges_8_c.

Intel(R) Core(TM) i5-5300U CPU @ 2.30GHz:
                                      before    after
draw_edges_8_1724_4_mmx:              8700.5   8751.8  ( 0.99x)
draw_edges_8_1724_8_mmx:             10441.7  10558.0  ( 0.99x)
draw_edges_8_1724_16_mmx:            10660.7  10799.5  ( 0.99x)
draw_edges_128_407_4_mmx:             4202.2   4099.3  ( 1.03x)
draw_edges_128_407_8_mmx:             4579.0   4511.3  ( 1.02x)
draw_edges_128_407_16_mmx:            5479.7   4729.5  ( 1.16x)
draw_edges_1080_31_4_mmx:             1546.7    658.0  ( 2.35x)
draw_edges_1080_31_8_mmx:             2745.5   1442.5  ( 1.90x)
draw_edges_1080_31_16_mmx:           12511.5   4901.0  ( 2.55x)
draw_edges_1920_4_4_mmx:              2659.0    705.0  ( 3.77x)
draw_edges_1920_4_4_negstride_mmx:    2643.0    729.0  ( 3.63x)
draw_edges_1920_4_8_mmx:              7845.0   2819.0  ( 2.78x)
draw_edges_1920_4_8_negstride_mmx:    7777.0   2747.3  ( 2.83x)
draw_edges_1920_4_16_mmx:            24583.7   6358.3  ( 3.87x)
draw_edges_1920_4_16_negstride_mmx:  24589.0   6367.0  ( 3.86x)
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..
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