From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ffbox0-bg.mplayerhq.hu (ffbox0-bg.ffmpeg.org [79.124.17.100]) by master.gitmailbox.com (Postfix) with ESMTP id AC06A46242 for ; Wed, 10 May 2023 12:14:46 +0000 (UTC) Received: from [127.0.1.1] (localhost [127.0.0.1]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id 8B88468C121; Wed, 10 May 2023 15:14:43 +0300 (EEST) Received: from ursule.remlab.net (vps-a2bccee9.vps.ovh.net [51.75.19.47]) by ffbox0-bg.mplayerhq.hu (Postfix) with ESMTP id D721568C115 for ; Wed, 10 May 2023 15:14:37 +0300 (EEST) Received: from ursule.remlab.net (localhost [IPv6:::1]) by ursule.remlab.net (Postfix) with ESMTP id 2CEC0C01F1; Wed, 10 May 2023 15:14:32 +0300 (EEST) Received: from [IPv6:::1] ([2001:14bb:c2:38ba:a465:47ff:fea0:d1ae]) by ursule.remlab.net with ESMTPSA id NHNsB6iKW2RmcCwAwZXkwQ (envelope-from ); Wed, 10 May 2023 15:14:32 +0300 Date: Wed, 10 May 2023 15:14:32 +0300 From: =?ISO-8859-1?Q?R=E9mi_Denis-Courmont?= To: Arnie Chang User-Agent: K-9 Mail for Android In-Reply-To: References: <20230509095030.25506-1-arnie.chang@sifive.com> <5295746.1FRWMjKWz7@basile.remlab.net> Message-ID: MIME-Version: 1.0 Subject: Re: [FFmpeg-devel] [PATCH 0/5] RISC-V: Improve H264 decoding performance using RVV intrinsic X-BeenThere: ffmpeg-devel@ffmpeg.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: FFmpeg development discussions and patches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: FFmpeg development discussions and patches Cc: ffmpeg-devel@ffmpeg.org Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: ffmpeg-devel-bounces@ffmpeg.org Sender: "ffmpeg-devel" Archived-At: List-Archive: List-Post: SGksCgpMZSAxMCBtYWkgMjAyMyAxMTo0Njo1NyBHTVQrMDM6MDAsIEFybmllIENoYW5nIDxhcm5p ZS5jaGFuZ0BzaWZpdmUuY29tPiBhIMOpY3JpdMKgOgo+Q29uc2lkZXJpbmcgdGhlIGJlbmVmaXRz IG9mIHRoZSBvcGVuIElTQSBsaWtlIFJJU0MtViwKPnRoZSBpbnRyaW5zaWMgY29kZSBzaG91bGQg c3RpbGwgaGF2ZSBhIGJldHRlciBjaGFuY2Ugb2YgYmVpbmcgb3B0aW1pemVkIGJ5Cj50aGUgY29t cGlsZXIgZm9yIGhhcmR3YXJlIHZhcmlhbnRzLgoKWW91IHByb2JhYmx5IGhhdmUgYWNjZXNzIHRv IHByb3ByaWV0YXJ5IHBlcmZvcm1hbmNlIGluZm9ybWF0aW9uIG9mIFNpRml2ZSB3aGljaCBub2Jv ZHkgZWxzZSBoZXJlIGNhbiBhcmd1ZSBhYm91dCwgc28gbWF5YmUgeW91IGFyZSBvbnRvIHNvbWV0 aGluZyBoZXJlLgoKSG93ZXZlciwgRkZtcGVnIG5lZWRzIHRvIHN1cHBvcnQgYW55IFJWNjRHQyBD UFUgd2l0aCBhIHNpbmdsZSBidWlsZCwgYmVjYXVzZSB0aGF0J3MgaG93IG1hbnkgTGludXggZGlz dHJpYnV0aW9ucyBhbmQgYXBwbGljYXRpb25zIHdpbGwgYnVpbGQgaXQuIFNvIHdlIGNhbid0IHJl YWxseSByZWx5IG9uIHRoZSBjb21waWxlcidzIHBlci1DUFUgbW9kZWwgdHVuaW5nIGZvciBzY2hl ZHVsaW5nLiBJbiBhbnkgY2FzZSwgbXkgZ3Vlc3MgaXMgdGhhdCB0aGVyZSB3b24ndCBiZSB0aGF0 IG11Y2ggcm9vbSBmb3IgdGhlIGNvbXBpbGVyIHRvIHJlb3JkZXIgdmVjdG9yIGNvZGUsIGV2ZW4g aWYgaXQncyB1c2luZyBpbnRyaW5zaWNzLgoKVG8gdGhlIGNvbnRyYXJ5LCBJIGZlYXIgdGhhdCB3 ZSBuZWVkIHRvIHR1bmUgdGhlIGdyb3VwIG11bHRpcGxpZXIgKExNVUwpIGF0IHJ1bnRpbWUgdG8g Z2V0IGdvb2QgcGVyZm9ybWFuY2Ugb24gZGlmZmVyZW50IHByb2Nlc3NvciBkZXNpZ25zLiBFc3Nl bnRpYWxseSB1bnJvbGxpbmcuIEFuZCBpZiB0aGF0IHR1cm5zIG91dCB0byBiZSB0cnVlLCB0aGVu IHdlICpjYW5ub3QqIHVzZSBpbnRyaW5zaWNzIHNpbmNlIHRoZXkgZG9uJ3Qgc3VwcG9ydCB2YXJ5 aW5nIHRoZSBncm91cCBtdWx0aXBsaWVyIGF0IHJ1bnRpbWUgdW5saWtlIG91dGxpbmUgYXNzZW1i bGVyLgoKU28gSSBjb3VsZCBiZSBjb21wbGV0ZWx5IHdyb25nIGJ1dCBpZiBzbywgd2UnZCBuZWVk IG1vcmUgc3Vic3RhbnRpYWwgZXhwbGFuYXRpb24gYW5kIGp1c3RpZmljYXRpb24gd2h5LgoKPkF0 IHRoaXMgbW9tZW50LCB0aGUgaW50cmluc2ljIGltcGxlbWVudGF0aW9uIGlzIHRoZSBvbmx5IHRo aW5nIGF2YWlsYWJsZS4KPkl0IHdvdWxkIHRha2UgYSBzaWduaWZpY2FudCBhbW91bnQgb2YgdGlt ZSB0byByZXdyaXRlIGl0IGluIGFzc2VtYmx5IGR1ZSB0bwo+dGhlIGxhcmdlIGFtb3VudCBvZiBm dW5jdGlvbnMuCgpJcyBpdCByZWFsbHkgdGhhdCBtdWNoIHdvcms/IExlYXZpbmcgYXNpZGUgbWF5 YmUgY29udmVydGluZyB0aGUgaW5saW5lIGZ1bmN0aW9ucyBpbnRvIGFzc2VtYmxlciBtYWNyb3Ms IGl0IHNlZW1zIG1vc3RseSBsaWtlIGEgY2FzZSBvZiBwYXNzaW5nIHRoZSBDIGNvZGUgdGhyb3Vn aCB0aGUgY29tcGlsZXIsIHRoZW4gZGlzYXNzZW1ibGluZyB0aGUgcmVzdWx0IGFuZCB0aGVuIHJl Zm9ybWF0dGluZyBmb3IgbGVnaWJpbGl0eSBoZXJlIGFuZCB0aGVyZS4KCkFzIHRoZSBwcm92ZXJi IGdvZXMsICJvbiB0aGUgSW50ZXJuZXQsIG5vYm9keSBrbm93cyB5b3UncmUgYSBtb25rZXkiLiBO b2JvZHkgbmVlZHMgdG8ga25vdyB0aGF0IHNvbWVib2R5IHdyb3RlIHRoZWlyIGFzc2VtYmxlciB3 aXRoIHRoZSBoZWxwIG9mIGludHJpbnNpY3MgYW5kIGEgY29tcGlsZXIuCgo+SSB3YXMgd29uZGVy aW5nIGlmIHdlIGNvdWxkIHRyZWF0IHRoZSBpbnRyaW5zaWMgY29kZSBhcyBhbiBpbml0aWFsIHZl cnNpb24KPmZvciB0aGUgUklTQy1WIHBvcnQgd2l0aCB0aGUgZm9sbG93aW5nIG1vZGlmaWNhdGlv bi4KPiAgICAtIEFkZCBhbiBvcHRpb24gLS1lbmFibGUtcnZ2LWludHJpbnNpYyB0byBFWFBMSUNJ VExZIGVuYWJsZSB0aGUKPmludHJpbnNpYyBvcHRpbWl6YXRpb24sIHdoaWNoIGlzIGRpc2FibGVk IGJ5IGRlZmF1bHQuCgpJIHdpbGwgbGV0IG1vcmUgc2VuaW9yIGRldmVsb3BlcnMgdG8gY29tbWVu dCBoZXJlLCBidXQgSSBzdXNwZWN0IHRoYXQgdGhpcyB3b3VsZCBzZXQgYSBiYWQgZXhhbXBsZSB0 aGF0IHdvdWxkIGV2ZW50dWFsbHkgaW5kdWNlIG90aGVyIHBlb3BsZSBpbnRvIGNob29zaW5nIGlu dHJpbnNpY3Mgb3ZlciBvdXRsaW5lIGFzc2VtYmxlciBmb3IgbmV3IGNvZGUuCgpBZGRpbmcgYSBi dWlsZCBvcHRpb24gY291bGQgYmUgdmlhYmxlIGlmIHdlIHdhbnRlZCB0byBhZHZpc2UgYWdhaW5z dCB1c2luZyB0aGUgY29kZS4gQnV0IGhlcmUgd2UgcmF0aGVyIHdhbnQgdG8gYWR2aXNlIGFnYWlu c3QgdXNpbmcgdGhlIGNvZGUgYXMgYSByZWZlcmVuY2UsIG5vdCBhZ2FpbnN0IHJ1bm5pbmcgaXQu CgpJZiB0aGlzIHdlcmUgdGhlIGtlcm5lbCwgSSdkIGFyZ3VlIG1lcmdpbmcgdGhlIGNvZGUgaW50 byBgc3RhZ2luZ2AgYnV0IEZGbXBlZyBpcyBub3Qgc28gbGFyZ2UgdGhhdCBpdCdkIGhhdmUgYSBz dGFnaW5nIGFyZWEuCgo+ICAgICAgQmFzZWQgb24gdGhlIGdpdmVuIGNvbmRpdGlvbnMsIHZlY3Rv ciBzdXBwb3J0cyBpbiBHQ0MgYW5kIGludHJpbnNpY3MKPmRpc2xpa2UgYW5kIGxpbWl0cy4gRGlz YWJsaW5nIGl0IGJ5IGRlZmF1bHQgc2VlbXMgYSByZWFzb25hYmxlIHdheS4KPgo+Rm9yIHRob3Nl IHdobyB3YW50IHRvIGJlIGludm9sdmVkIGluIHRoZSBvcHRpbWl6YXRpb24gb2YgSC4yNjQgZGVj b2RlciBvbgo+UklTQy1WIGNhbiB3b3JrIG9uIHRoZSBhc3NlbWJseSBhbmQgZGVjaWRlIHdoZXRo ZXIgdG8gcmVmZXIgdG8gaW50cmluc2ljCj5jb2RlLgo+SSBiZWxpZXZlIHRoaXMgd291bGQgYmUg YSBnb29kIHN0YXJ0aW5nIHBvaW50IGZvciBmdXR1cmUgb3B0aW1pemF0aW9uLgoKV2VsbCBtb3N0 IGxpa2VseS4gVGhlIHRoaW5nIGlzIHRob3VnaCB0aGF0IG5vYm9keSBpbiB0aGUgRkZtcGVnIGNv bW11bml0eSAoZXhjZXB0IHlvdSkgaGFzIGhhcmR3YXJlIGFjY2VzcyBpbiBhbnkgc2hhcGUgb3Ig Zm9ybSBhdCB0aGlzIHRpbWUsIGF0IGxlYXN0IHRoYXQgSSdkIGtub3cuIFRoYXQncyBvbmUgb2Yg dGhlIHJlYXNvbnMgd2h5IG15IG93biBlZmZvcnRzIGhhdmUgc3RhbGxlZC4KCj4KPgo+T24gV2Vk LCBNYXkgMTAsIDIwMjMgYXQgMTI6NTHigK9BTSBSw6ltaSBEZW5pcy1Db3VybW9udCA8cmVtaUBy ZW1sYWIubmV0Pgo+d3JvdGU6Cj4KPj4gICAgICAgICBIaSwKPj4KPj4gTGUgdGlpc3RhaW5hIDku IHRvdWtva3V1dGEgMjAyMywgMTIuNTAuMjUgRUVTVCBBcm5pZSBDaGFuZyBhIMOpY3JpdCA6Cj4+ ID4gV2UgYXJlIHN1Ym1pdHRpbmcgYSBzZXQgb2YgcGF0Y2hlcyB0aGF0IHNpZ25pZmljYW50bHkg aW1wcm92ZSBILjI2NAo+PiBkZWNvZGluZwo+PiA+IHBlcmZvcm1hbmNlIGJ5IHV0aWxpemluZyBS VlYgaW50cmluc2ljIGNvZGUuCj4+Cj4+IEkgYmVsaWV2ZSB0aGF0IHRoZXJlIGlzIGEgZ2VuZXJh bCBkaXNsaWtlIG9mIGNvbXBpbGVyIGludHJpbnNpYyBmb3IgdmVjdG9yCj4+IG9wdGltaXNhdGlv bnMgaW4gRkZtcGVnIGZvciBhIHBsdXJhbGl0eSBvZiByZWFzb25zLiBGV0lXLCB0aGF0IGRpc2xp a2UgaXMKPj4gbm90Cj4+IGxpbWl0ZWQgdG8gRkZtcGVnOgo+PiBodHRwczovL3d3dy5yZWRkaXQu Y29tL3IvUklTQ1YvY29tbWVudHMvMTMxaGxncS9jb21tZW50L2ppMWllM2wvCj4+IEluZGVlZCwg aW4gbXkgcGVyc29uYWwgb3BpbmlvbiwgUklTQy1WIFYgaW50cmluc2ljcyBzcGVjaWZpY2FsbHkg YXJlCj4+IHBhaW5mdWwgdG8KPj4gcmVhZC93cml0ZSBjb21wYXJlZCB0byBhc3NlbWJsZXIuCj4+ Cj4+IE9uIHRvcCBvZiB0aGF0LCBpbiB0aGlzIHBhcnRpY3VsYXIgY2FzZSwgaW50cmluc2ljcyBo YXZlIGF0IGxlYXN0IHRocmVlLAo+PiBwb3NzaWJseSBmb3VyLCBhZGRpdGlvbmFsIGFuZCBtb3Jl IG9iamVjdGl2ZSBjaGFsbGVuZ2VzIGFzIGNvbXBhcmVkIHRvIHRoZQo+PiBleGlzdGluZyBSVlYg YXNzZW1ibGVyOgo+Pgo+PiAxKSBUaGV5IGFyZSBsZXNzIHBvcnRhYmxlLCByZXF1aXJpbmcgdGhl IG1vc3QgYmxlZWRpbmcgZWRnZSB2ZXJzaW9uIG9mCj4+IGNvbXBpbGVycy4gQ2FzZSBpbiBwb2lu dDogb3VyIEZBVEUgR0NDIGluc3RhbmNlIGRvZXMgbm90IHN1cHBvcnQgdGhlbSBhcwo+PiBvZgo+ PiB0b2RheSAoYmVjYXVzZSBEZWJpYW4gVW5zdGFibGUgZG9lcyBub3QpLgo+Pgo+PiAyKSBUaGV5 IGRvIG5vdCB3b3JrIHdpdGggcnVuLXRpbWUgQ1BVIGRldGVjdGlvbiwgYXQgbGVhc3Qgbm90IGN1 cnJlbnRseS4KPj4gVGhpcwo+PiBpcyBnb2luZyB0byBiZSBhIG1ham9yIHN0dW1ibGluZyBwb2lu dCBmb3IgTGludXggZGlzdHJpYnV0aW9ucyB3aGljaCBuZWVkCj4+IHRvCj4+IGJ1aWxkIGNvZGUg dGhhdCBydW5zIG9uIHByb2Nlc3NvcnMgd2l0aG91dCB2ZWN0b3IgdW5pdC4KPj4KPj4gMykgViBp bnRyaW5zaWNzIHJlcXVpcmUgc3BlY2lmeWluZyB0aGUgZ3JvdXAgbXVsdGlwbGllciBhdCBldmVy eQo+PiBpbnN0cnVjdGlvbi4KPj4gSW4gbW9zdCBjYXNlcywgdGhpcyBpcyBqdXN0IHZlcnkgaW5j b252ZW5pZW50LiBCdXQgaW4gdGhvc2UgYWxnb3JpdGhtcwo+PiB0aGF0Cj4+IHJlcXVpcmUgYSBm aXhlZCB2ZWN0b3Igc2l6ZSAoZS5nLiBPcHVzIERTUCBhbHJlYWR5IG5vdyksIHRoaXMgc2ltcGx5 IGRvZXMKPj4gX25vdF8KPj4gd29yay4KPj4KPj4gRXNzZW50aWFsbHksIHRoaXMgaXMgdGhlIGRv d25zaWRlIG9mIHJlbHlpbmcgb24gdGhlIGNvbXBpbGVyIHRvIGRvIHRoZQo+PiByZWdpc3RlciBh bGxvY2F0aW9uLgo+Pgo+PiA0KSAoVW5zdXJlKSBJbnRyaW5zaWNzIGFyZSBub3RvcmlvdXMgZm9y IG1pc3Npbmcgc29tZSBjb2RlIHBvaW50cy4KPj4KPj4KPj4gVGhlIGZpcnN0IHR3byBwb2ludHMg bWF5IGJlIGFkZHJlc3NlZCBldmVudHVhbGx5LiBCdXQgdGhlIHRoaXJkIHBvaW50IGlzCj4+IGlu dHJpbnNpYyB0byBpbnRyaW5zaWNzIChob2hvaG8pLiBTbyB1bmxlc3MgdGhlcmUgaXMgYSBjYXNl IGZvciB3aHkKPj4gaW50cmluc2ljcwo+PiB3b3VsZCBiZSBhbGwgYnV0IF9yZXF1aXJlZF8sIHBs ZWFzZSBhdm9pZCB0aGVtLgo+Pgo+PiBOb3cgSSBkbyByZWFsaXNlIHRoYXQgdGhhdCBtZWFucyBz b21lIG9mIHRoZSBjb2RlIHdvbid0IGJlIFhMRU4taW5kZXBlbnQuCj4+IFdlbGwsIHdlIGNhbiBj cm9zcyB0aGF0IGJyaWRnZSB3aXRoIG1hY3JvcyBpZi93aGVuIHNvbWVib2R5IGFjdHVhbGx5IGNh cmVzCj4+IGFib3V0IEZGbXBlZyB2ZWN0b3Igb3B0aW1pc2F0aW9ucyBvbiBSVjMySS4KPj4KPj4g QnIsCj4+Cj4+IC0tCj4+IOmbt+exs+KAp+W+t+WwvC3lupPlsJTokpkKPj4gaHR0cDovL3d3dy5y ZW1sYWIubmV0Lwo+Pgo+Pgo+Pgo+PgpfX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fXwpmZm1wZWctZGV2ZWwgbWFpbGluZyBsaXN0CmZmbXBlZy1kZXZlbEBmZm1w ZWcub3JnCmh0dHBzOi8vZmZtcGVnLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2ZmbXBlZy1kZXZlbAoK VG8gdW5zdWJzY3JpYmUsIHZpc2l0IGxpbmsgYWJvdmUsIG9yIGVtYWlsCmZmbXBlZy1kZXZlbC1y ZXF1ZXN0QGZmbXBlZy5vcmcgd2l0aCBzdWJqZWN0ICJ1bnN1YnNjcmliZSIuCg==