Re: [FFmpeg-devel] [PATCH 3/3] avfilter/vf_convolution: add X86 SIMD for filter_column()
se above SIMD code Here may not be modified too. Xu Jun > > >>+xor sumd, sumd >>+xor iq, iq >>+.loopr_i: >>+mov ciq, [ptrq + iq * gprsize] >>+movzx rd, byte [ciq + c_offq] >>+imul rd, [matrixq + 4*iq] >>+add sumd, rd >>+ >>+add iq, 1 >>+cmp iq, radq >>+jl .loopr_i >>+ >>+pxor m4, m4 >>+cvtsi2ss m4, sumd >>+mulss m4, m0 ; sum *= rdiv >>+addss m4, m1 ; sum += bias >>+addss m4, m5 ; sum += 0.5 >>+cvttps2dq m4, m4 >>+packssdw m4, m4 >>+packuswb m4, m4 >>+movd sumd, m4 >>+mov [dstq + dst_offq], sumb >>+add c_offq, 1 >>+add dst_offq, 1 >>+add off16q, 1 >>+cmp off16q, widthq >>+jl .loopr >>+ >>+.paraend: >>+sub c_offq, widthq >>+sub dst_offq, widthq >>+add c_offq, strideq >>+add dst_offq, dstrideq >>+ >>+sub heightq, 1 >>+cmp heightq, 0 >>+jg .loopy >>+ >>+.end: >>+RET > > ___ > 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". -- 敬颂钧安, 徐鋆 电子信息与电气工程学院 上海交通大学 邮箱：xuju...@sjtu.edu.cn 地址：上海市闵行区东川路800号 Yours sincerely, Xu Jun School of Electronic, Information and Electrical Engineering Shanghai Jiao Tong University Email: xuju...@sjtu.edu.cn No. 800, Dongchuan Road, Minhang District, Shanghai 200240, China 宜しくお愿いたします 徐鋆 電子情報と電気工程学院 上海交通大学 メールアドレス ：xuju...@sjtu.edu.cn 住所：上海市閔行区ドンチュワンルー800号 ___ 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".
Re: [FFmpeg-devel] [PATCH] avfilter/vf_convolution: add 16-column operation for filter_column() to prepare for x86 SIMD.
Hi, Steven - 原始邮件 - 发件人: "Steven Liu" 收件人: "FFmpeg development discussions and patches" 抄送: "Steven Liu" 发送时间: 星期一, 2019年 12 月 02日 上午 10:44:48 主题: Re: [FFmpeg-devel] [PATCH] avfilter/vf_convolution: add 16-column operation for filter_column() to prepare for x86 SIMD. > 在 2019年12月2日，10:42，徐鋆 写道： > > I'm sorry not to reply in time. > > The performance of this C code is about 10% better than the existing C code. > > It will have a bigger improvement after X86 SIMD optimizations. 1. How to test? 1. 怎么测试的? 1. どうやってテストしたの? I tested using this command: ./ffmpeg_g -s 1280*720 -pix_fmt yuv420p -i test.yuv -vf convolution="1 2 3 4 5 6 7 8 9:1 2 3 4 5 6 7 8 9:1 2 3 4 5 6 7 8 9:1 2 3 4 5 6 7 8 9:1/45:1/45:1/45:1/45:1:2:3:4:column:column:column:column" -an -vframes 2000 -f null /dev/null The FPS increases from 329 to 365 on my local machine. 2. Don’t TOP-Posting: https://en.wikipedia.org/wiki/Top-posting 2. 回邮件要在你回的那一条的下面回复，别再最上面回复，人家看不懂你是针对的哪一条 2. 返信メールは、あなたが返信した項目の下にある。一番上に返信しないと、あなたが何を狙っているのか分からない Thank you for reminding me. I'm new here. Forgive me for not knowing the rules:) > > Xu Jun > > - 原始邮件 - > 发件人: "Carl Eugen Hoyos" > 收件人: "FFmpeg development discussions and patches" > 发送时间: 星期四, 2019年 11 月 28日 上午 12:19:44 > 主题: Re: [FFmpeg-devel] [PATCH] avfilter/vf_convolution: add 16-column > operation for filter_column() to prepare for x86 SIMD. > > Am Mi., 27. Nov. 2019 um 15:56 Uhr schrieb : > >> From: Xu Jun >> >> In order to add x86 SIMD for filter_column(), I write a C function which >> processes 16 columns at a time. > > How does this perform compared to the existing C code? > > Carl Eugen > ___ > 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". > -- > 敬颂钧安, > 徐鋆 > 电子信息与电气工程学院 > 上海交通大学 > 邮箱：xuju...@sjtu.edu.cn > 地址：上海市闵行区东川路800号 > > Yours sincerely, > Xylem（Jun Xu） > School of Electronic, Information and Electrical Engineering > Shanghai Jiao Tong University > Email: xuju...@sjtu.edu.cn > No. 800, Dongchuan Road, Minhang District, Shanghai 200240, China > > 宜しくお愿いたします > 徐鋆 > 電子情報と電気工程学院 > 上海交通大学 > メールアドレス ：xuju...@sjtu.edu.cn > 住所：上海市閔行区ドンチュワンルー800号 > ___ > 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". Thanks Steven ___ 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". -- 敬颂钧安, 徐鋆 电子信息与电气工程学院 上海交通大学 邮箱：xuju...@sjtu.edu.cn 地址：上海市闵行区东川路800号 Yours sincerely, Xu Jun School of Electronic, Information and Electrical Engineering Shanghai Jiao Tong University Email: xuju...@sjtu.edu.cn No. 800, Dongchuan Road, Minhang District, Shanghai 200240, China 宜しくお愿いたします 徐鋆 電子情報と電気工程学院 上海交通大学 メールアドレス ：xuju...@sjtu.edu.cn 住所：上海市閔行区ドンチュワンルー800号 ___ 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".
Re: [FFmpeg-devel] [PATCH] avfilter/vf_convolution: add 16-column operation for filter_column() to prepare for x86 SIMD.
I'm sorry not to reply in time. The performance of this C code is about 10% better than the existing C code. It will have a bigger improvement after X86 SIMD optimizations. Xu Jun - 原始邮件 - 发件人: "Carl Eugen Hoyos" 收件人: "FFmpeg development discussions and patches" 发送时间: 星期四, 2019年 11 月 28日 上午 12:19:44 主题: Re: [FFmpeg-devel] [PATCH] avfilter/vf_convolution: add 16-column operation for filter_column() to prepare for x86 SIMD. Am Mi., 27. Nov. 2019 um 15:56 Uhr schrieb : > From: Xu Jun > > In order to add x86 SIMD for filter_column(), I write a C function which > processes 16 columns at a time. How does this perform compared to the existing C code? Carl Eugen ___ 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". -- 敬颂钧安, 徐鋆 电子信息与电气工程学院 上海交通大学 邮箱：xuju...@sjtu.edu.cn 地址：上海市闵行区东川路800号 Yours sincerely, Xylem（Jun Xu） School of Electronic, Information and Electrical Engineering Shanghai Jiao Tong University Email: xuju...@sjtu.edu.cn No. 800, Dongchuan Road, Minhang District, Shanghai 200240, China 宜しくお愿いたします 徐鋆 電子情報と電気工程学院 上海交通大学 メールアドレス ：xuju...@sjtu.edu.cn 住所：上海市閔行区ドンチュワンルー800号 ___ 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".
