Hi, Steven ----- 原始邮件 ----- 发件人: "Steven Liu" <[email protected]> 收件人: "FFmpeg development discussions and patches" <[email protected]> 抄送: "Steven Liu" <[email protected]> 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 <[email protected]> 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" <[email protected]> > 收件人: "FFmpeg development discussions and patches" <[email protected]> > 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 <[email protected]>: > >> From: Xu Jun <[email protected]> >> >> 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 > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] 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：[email protected] > 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: [email protected] > 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 ：[email protected] > 住所：上海市閔行区ドンチュワンルー800号 > _______________________________________________ > ffmpeg-devel mailing list > [email protected] > https://ffmpeg.org/mailman/listinfo/ffmpeg-devel > > To unsubscribe, visit link above, or email > [email protected] with subject "unsubscribe". Thanks Steven _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] 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：[email protected] 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: [email protected] 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 ：[email protected] 住所：上海市閔行区ドンチュワンルー800号 _______________________________________________ ffmpeg-devel mailing list [email protected] https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email [email protected] with subject "unsubscribe".
