On Sun, Jul 12, 2015 at 05:56:09PM +0200, Michael Niedermayer wrote: > On Sun, Jul 12, 2015 at 09:13:18PM +0800, 周晓勇 wrote: > > > > > > > > > -----原始邮件----- > > > 发件人: "Michael Niedermayer" <mich...@niedermayer.cc> > > > 发送时间: 2015年7月12日 星期日 > > > 收件人: "FFmpeg development discussions and patches" > > > <ffmpeg-devel@ffmpeg.org> > > > 抄送: > > > 主题: Re: [FFmpeg-devel] [PATCH 4/4] avcodec: loongson optimized h264pred > > > with mmi > > > > > > On Sat, Jul 11, 2015 at 09:02:51PM +0200, Michael Niedermayer wrote: > > > > On Sun, Jul 05, 2015 at 11:43:37PM +0200, Michael Niedermayer wrote: > > > > > On Sat, Jul 04, 2015 at 12:14:51PM +0800, 周晓勇 wrote: > > > > > > i will offer a download source of Fedora21 OS next Monday. > > > > > > i will run yum-builddep ffmpeg-xxx.src.rpm for preparing devel > > > > > > environment. > > > > > > what else do you need to install, because it maybe slow for > > > > > > downloading other packages abroad. > > > > > > the new FC21 build with mips64el N64 API and > > > > > > mips64r2(-march=loongson3a) isa, and enabled ARCH_MIPS64 after > > > > > > ffmpeg configure. > > > > > > the FC19-O32 was slow, so aborted. > > > > > > > > > > other things hmm > > > > > ccache, dash, screen > > > > > > > > with dash configure finished in 1minute instead of 4 with bash (on > > > > loongson) > > > > > > fate no longer passes after installing Fedora21 > > > > > > with > > > dash ./configure --enable-gpl --cc='ccache gcc' --enable-pthreads > > > --samples=/home/loongson/fate/ --enable-nonfree --enable-version3 > > > --assert-level=2 > > > i get failure due to illegal instructions > > > > > > with > > > dash ./configure --enable-gpl --cc='ccache gcc' --enable-pthreads > > > --samples=/home/loongson/fate/ --enable-nonfree --enable-version3 > > > --assert-level=2 --cpu=loongson3a --enable-loongson3 > > > it fails in dca tests: > > > > > > TEST dca-core > > > TEST dca-xll > > > stddev: 853.28 PSNR: 37.71 MAXDIFF:11651 bytes: 1554432/ 700416 > > > MAXDIFF: |11651 - 0| >= 1 > > > size: |1554432 - 700416| >= 0 > > > Test dca-core failed. Look at tests/data/fate/dca-core.err for details. > > > tests/Makefile:202: recipe for target 'fate-dca-core' failed > > > make: *** [fate-dca-core] Error 1 > > > make: *** Waiting for unfinished jobs.... > > > stddev: 219.18 PSNR: 49.51 MAXDIFF: 2483 bytes: 8994816/ 1073152 > > > MAXDIFF: |2483 - 0| >= 1 > > > size: |8994816 - 1073152| >= 0 > > > Test dca-xll failed. Look at tests/data/fate/dca-xll.err for details. > > > tests/Makefile:202: recipe for target 'fate-dca-xll' failed > > > make: *** [fate-dca-xll] Error 1 > > > > > > > yes, i got this dca failure too. i have encountered many other errors in > > fate test. > > why do you think it's due to illegal instructions? > > make distclean ; ./configure --enable-gpl --cc='ccache gcc' --enable-pthreads > --samples=/home/loongson/fate/ --enable-nonfree --enable-version3 > --assert-level=2 && make -j4 > ./ffmpeg > Illegal instruction (core dumped)
disassemble $pc-32, $pc+32 Dump of assembler code from 0x120082ddc to 0x120082e1c: 0x0000000120082ddc <ff_jpeg2000_init_tier1_luts+520>: movn v1,a3,t9 0x0000000120082de0 <ff_jpeg2000_init_tier1_luts+524>: dsll a0,v1,0x1 0x0000000120082de4 <ff_jpeg2000_init_tier1_luts+528>: beqz v0,0x120082df4 <ff_jpeg2000_init_tier1_luts+544> 0x0000000120082de8 <ff_jpeg2000_init_tier1_luts+532>: daddu v1,a0,v1 0x0000000120082dec <ff_jpeg2000_init_tier1_luts+536>: move v0,a2 0x0000000120082df0 <ff_jpeg2000_init_tier1_luts+540>: movn v0,a3,t8 0x0000000120082df4 <ff_jpeg2000_init_tier1_luts+544>: daddu v0,v1,v0 0x0000000120082df8 <ff_jpeg2000_init_tier1_luts+548>: dsll v0,v0,0x2 => 0x0000000120082dfc <ff_jpeg2000_init_tier1_luts+552>: 0x7d62100a 0x0000000120082e00 <ff_jpeg2000_init_tier1_luts+556>: addiu v0,v0,1 0x0000000120082e04 <ff_jpeg2000_init_tier1_luts+560>: dsll v1,v0,0x1 0x0000000120082e08 <ff_jpeg2000_init_tier1_luts+564>: beqz a1,0x120082e18 <ff_jpeg2000_init_tier1_luts+580> 0x0000000120082e0c <ff_jpeg2000_init_tier1_luts+568>: daddu v0,v1,v0 0x0000000120082e10 <ff_jpeg2000_init_tier1_luts+572>: move a1,a2 0x0000000120082e14 <ff_jpeg2000_init_tier1_luts+576>: movn a1,a3,s7 0x0000000120082e18 <ff_jpeg2000_init_tier1_luts+580>: dsll v1,a1,0x1 [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB The real ebay dictionary, page 2 "100% positive feedback" - "All either got their money back or didnt complain" "Best seller ever, very honest" - "Seller refunded buyer after failed scam"
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