さてSSSE3->SSEですが…
AMDお断りってのもなんなんで。
ffmpeg ./configure時に --disable-ssse3
libx264.lib・output.lib作成時に
-march=core2 -mfpmath=sse -mtune=core2 -mssse3
を
-march=i686 -mfpmath=sse -msse
にした。
そんな装備で大丈夫か？
->大丈夫だ、問題ない。
ためしにエンコードしてみると…(音声なし、動画エンコードのみ、エンコード設定同じ)
SSSE3
--------------------------------------------------------------------------------
[S:\tenshin.mp4] (1pass)
--------------------------------------------------------------------------------
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 3.1
mp4 [info]: audio muxing feature is disabled.
x264 [info]: frame I:47 Avg QP:18.70 size: 78037
x264 [info]: frame P:1217 Avg QP:23.29 size: 21899
x264 [info]: frame B:1787 Avg QP:26.94 size: 6809
x264 [info]: consecutive B-frames: 15.2% 10.7% 17.0% 57.1%
x264 [info]: mb I I16..4: 24.2% 44.0% 31.8%
x264 [info]: mb P I16..4: 5.5% 9.8% 3.6% P16..4: 31.0% 11.9% 8.3% 0.0% 0.0% skip:29.9%
x264 [info]: mb B I16..4: 0.8% 1.4% 0.4% B16..8: 31.0% 6.3% 2.1% direct: 2.3% skip:55.7% L0:45.3% L1:44.2% BI:10.5%
x264 [info]: 8x8 transform intra:50.9% inter:52.3%
x264 [info]: direct mvs spatial:99.6% temporal:0.4%
x264 [info]: coded y,uvDC,uvAC intra: 48.5% 63.7% 36.1% inter: 10.9% 15.7% 7.4%
x264 [info]: i16 v,h,dc,p: 50% 30% 9% 12%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 14% 20% 6% 7% 9% 7% 8% 9%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 12% 13% 8% 10% 11% 8% 9% 9%
x264 [info]: i8c dc,h,v,p: 43% 26% 20% 11%
x264 [info]: Weighted P-Frames: Y:6.3%
x264 [info]: ref P L0: 67.1% 9.8% 13.7% 4.8% 3.4% 1.2% 0.0%
x264 [info]: ref B L0: 86.3% 9.4% 3.3% 1.0%
x264 [info]: ref B L1: 94.8% 5.2%
x264 [info]: kb/s:3342.12
encoded 3051 frames, 27.70 fps, 3342.17 kb/s, afs 0
で、SSEまで版
--------------------------------------------------------------------------------
[S:\tenshin.mp4] (1pass)
--------------------------------------------------------------------------------
x264 [info]: using cpu capabilities: MMX2 SSE2Fast SSSE3 FastShuffle SSE4.2
x264 [info]: profile High, level 3.1
mp4 [info]: audio muxing feature is disabled.
x264 [info]: frame I:47 Avg QP:18.70 size: 78037
x264 [info]: frame P:1217 Avg QP:23.29 size: 21899
x264 [info]: frame B:1787 Avg QP:26.94 size: 6809
x264 [info]: consecutive B-frames: 15.2% 10.7% 17.0% 57.1%
x264 [info]: mb I I16..4: 24.2% 44.0% 31.8%
x264 [info]: mb P I16..4: 5.5% 9.8% 3.6% P16..4: 31.0% 11.9% 8.3% 0.0% 0.0% skip:29.9%
x264 [info]: mb B I16..4: 0.8% 1.4% 0.4% B16..8: 31.0% 6.3% 2.1% direct: 2.3% skip:55.7% L0:45.3% L1:44.2% BI:10.5%
x264 [info]: 8x8 transform intra:50.9% inter:52.3%
x264 [info]: direct mvs spatial:99.6% temporal:0.4%
x264 [info]: coded y,uvDC,uvAC intra: 48.5% 63.7% 36.1% inter: 10.9% 15.7% 7.4%
x264 [info]: i16 v,h,dc,p: 50% 30% 9% 12%
x264 [info]: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 14% 20% 6% 7% 9% 7% 8% 9%
x264 [info]: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 20% 12% 13% 8% 10% 11% 8% 9% 9%
x264 [info]: i8c dc,h,v,p: 43% 26% 20% 11%
x264 [info]: Weighted P-Frames: Y:6.3%
x264 [info]: ref P L0: 67.1% 9.8% 13.7% 4.8% 3.4% 1.2% 0.0%
x264 [info]: ref B L0: 86.3% 9.4% 3.3% 1.0%
x264 [info]: ref B L1: 94.8% 5.2%
x264 [info]: kb/s:3342.12
encoded 3051 frames, 27.97 fps, 3342.17 kb/s, afs 0
どうしてこうなった…
まあ、SSEのほうが速いのはWindows・常駐とかの割り込みのせいかなあと。
1回ずつしか試してない(ほんとは何回かやって平均をとるもんだろう)けど、ようは「割り込みとかで簡単に変わるぐらいの誤差ぐらいの違いしかない」
…ほんとは、
そんな装備で大丈夫か?
->一番いいやつを…
と行きたいけど、全然大丈夫だった…
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