[{"id":23575,"web_url":"https://patchwork.libcamera.org/comment/23575/","msgid":"<165607456627.1149771.12567512299190619711@Monstersaurus>","date":"2022-06-24T12:42:46","subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"content":"Quoting Laurent Pinchart via libcamera-devel (2022-06-24 00:21:57)\n> Hello,\n> \n> This patch series fixes a long-standing issue in the libcamerasrc\n> element, namely the fact that it never queues more than one request at a\n> time.\n\nExcellent, I've heard reports of performance on Raspberry Pi with\nlibcamerasrc being half the expected rate as well, so I suspect this was\nalso a cause - and will fix things there.\n\n\\o/\n\n\n> It took me quite a while to grasp the implementation of libcamerasrc,\n> and this probably shows through the patch series. I don't claim any of\n> this is particularly good, only that it enables libcamerasrc usage with\n> rkisp1 and vimc, which isn't possible today, and that it didn't\n> introduce any regression I could notice.\n> \n> Reviews from developers with more experience in GStreamer than me would\n> be appreciated :-)\n> \n> Laurent Pinchart (13):\n> gstreamer: Use gst_task_resume() when available\n> gstreamer: Inline gst_libcamera_buffer_get_frame_buffer()\n> gstreamer: Move variable to loop scope\n> gstreamer: Pass Stream to RequestWrap::addBuffer()\n> gstreamer: Move timestamp calculation out of pad loop\n> gstreamer: Rename queued requests queue to queuedRequests_\n> gstreamer: Handle completed requests in the libcamerasrc task\n> gstreamer: Combine the two pad loops in the task run handler\n> gstreamer: Use dedicated lock for request queues\n> gstreamer: Fix pads locking\n> gstreamer: Split request creation to a separate function\n> gstreamer: Split completed request processing to a separate function\n> gstreamer: Fix race conditions in task pause/resume\n> \n> src/gstreamer/gstlibcamera-utils.cpp | 16 +-\n> src/gstreamer/gstlibcamera-utils.h | 4 +-\n> src/gstreamer/gstlibcameraallocator.cpp | 3 +-\n> src/gstreamer/gstlibcameraallocator.h | 2 +-\n> src/gstreamer/gstlibcamerapad.cpp | 35 ---\n> src/gstreamer/gstlibcamerapad.h | 6 -\n> src/gstreamer/gstlibcamerapool.cpp | 14 --\n> src/gstreamer/gstlibcamerapool.h | 4 -\n> src/gstreamer/gstlibcamerasrc.cpp | 308 ++++++++++++++++--------\n> 9 files changed, 227 insertions(+), 165 deletions(-)\n> \n> \n> base-commit: 7ec3bfedbe22962600b438a13d9e13d37d55ce25\n> -- \n> Regards,\n> \n> Laurent Pinchart\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 7150EBE173\n\tfor ;\n\tFri, 24 Jun 2022 12:42:50 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id C700765635;\n\tFri, 24 Jun 2022 14:42:49 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 0799B600EC\n\tfor ;\n\tFri, 24 Jun 2022 14:42:49 +0200 (CEST)","from pendragon.ideasonboard.com\n\t(cpc89244-aztw30-2-0-cust3082.18-1.cable.virginm.net [86.31.172.11])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 6AF7D80A;\n\tFri, 24 Jun 2022 14:42:48 +0200 (CEST)"],"DKIM-Signature":["v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"oe2SnyaI\"; dkim-atps=neutral","Content-Type":"text/plain; charset=\"utf-8\"","MIME-Version":"1.0","Content-Transfer-Encoding":"quoted-printable","In-Reply-To":"<20220623232210.18742-1-laurent.pinchart@ideasonboard.com>","References":"<20220623232210.18742-1-laurent.pinchart@ideasonboard.com>","To":"Laurent Pinchart ,\n\tlibcamera-devel@lists.libcamera.org","Date":"Fri, 24 Jun 2022 13:42:46 +0100","Message-ID":"<165607456627.1149771.12567512299190619711@Monstersaurus>","User-Agent":"alot/0.10","Subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Kieran Bingham via libcamera-devel\n\t","Reply-To":"Kieran Bingham ","Cc":"Nicolas Dufresne ,\n\tVedant Paranjape ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":23584,"web_url":"https://patchwork.libcamera.org/comment/23584/","msgid":"","date":"2022-06-26T23:30:23","subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"On Fri, Jun 24, 2022 at 01:42:46PM +0100, Kieran Bingham wrote:\n> Quoting Laurent Pinchart via libcamera-devel (2022-06-24 00:21:57)\n> > Hello,\n> > \n> > This patch series fixes a long-standing issue in the libcamerasrc\n> > element, namely the fact that it never queues more than one request at a\n> > time.\n> \n> Excellent, I've heard reports of performance on Raspberry Pi with\n> libcamerasrc being half the expected rate as well, so I suspect this was\n> also a cause - and will fix things there.\n\nAny volunteer to test this on Raspberry Pi ? :-)\n\n> \\o/\n> \n> > It took me quite a while to grasp the implementation of libcamerasrc,\n> > and this probably shows through the patch series. I don't claim any of\n> > this is particularly good, only that it enables libcamerasrc usage with\n> > rkisp1 and vimc, which isn't possible today, and that it didn't\n> > introduce any regression I could notice.\n> > \n> > Reviews from developers with more experience in GStreamer than me would\n> > be appreciated :-)\n> > \n> > Laurent Pinchart (13):\n> > gstreamer: Use gst_task_resume() when available\n> > gstreamer: Inline gst_libcamera_buffer_get_frame_buffer()\n> > gstreamer: Move variable to loop scope\n> > gstreamer: Pass Stream to RequestWrap::addBuffer()\n> > gstreamer: Move timestamp calculation out of pad loop\n> > gstreamer: Rename queued requests queue to queuedRequests_\n> > gstreamer: Handle completed requests in the libcamerasrc task\n> > gstreamer: Combine the two pad loops in the task run handler\n> > gstreamer: Use dedicated lock for request queues\n> > gstreamer: Fix pads locking\n> > gstreamer: Split request creation to a separate function\n> > gstreamer: Split completed request processing to a separate function\n> > gstreamer: Fix race conditions in task pause/resume\n> > \n> > src/gstreamer/gstlibcamera-utils.cpp | 16 +-\n> > src/gstreamer/gstlibcamera-utils.h | 4 +-\n> > src/gstreamer/gstlibcameraallocator.cpp | 3 +-\n> > src/gstreamer/gstlibcameraallocator.h | 2 +-\n> > src/gstreamer/gstlibcamerapad.cpp | 35 ---\n> > src/gstreamer/gstlibcamerapad.h | 6 -\n> > src/gstreamer/gstlibcamerapool.cpp | 14 --\n> > src/gstreamer/gstlibcamerapool.h | 4 -\n> > src/gstreamer/gstlibcamerasrc.cpp | 308 ++++++++++++++++--------\n> > 9 files changed, 227 insertions(+), 165 deletions(-)\n> > \n> > \n> > base-commit: 7ec3bfedbe22962600b438a13d9e13d37d55ce25","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 04319BE173\n\tfor ;\n\tSun, 26 Jun 2022 23:30:43 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id B05DE65635;\n\tMon, 27 Jun 2022 01:30:42 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 99B04600EC\n\tfor ;\n\tMon, 27 Jun 2022 01:30:41 +0200 (CEST)","from pendragon.ideasonboard.com (62-78-145-57.bb.dnainternet.fi\n\t[62.78.145.57])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 3206247C;\n\tMon, 27 Jun 2022 01:30:41 +0200 (CEST)"],"DKIM-Signature":["v=1; 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dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"JircB81S\"; dkim-atps=neutral","Date":"Mon, 27 Jun 2022 02:30:23 +0300","To":"Kieran Bingham ","Message-ID":"","References":"<20220623232210.18742-1-laurent.pinchart@ideasonboard.com>\n\t<165607456627.1149771.12567512299190619711@Monstersaurus>","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","In-Reply-To":"<165607456627.1149771.12567512299190619711@Monstersaurus>","Subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Laurent Pinchart via libcamera-devel\n\t","Reply-To":"Laurent Pinchart ","Cc":"libcamera-devel@lists.libcamera.org,\n\tVedant Paranjape ,\n\tNicolas Dufresne ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":23614,"web_url":"https://patchwork.libcamera.org/comment/23614/","msgid":"","date":"2022-06-27T17:56:39","subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","submitter":{"id":85,"url":"https://patchwork.libcamera.org/api/people/85/","name":"Vedant Paranjape","email":"vedantparanjape160201@gmail.com"},"content":"Hello Laurent,\n\nI think Rishikesh can test this on his Raspberry Pi setup. He's already\nworking on the gstreamer element.\n\ncc'ing him here.\n\nRegards,\nVedant Paranjape\n\nOn Mon, Jun 27, 2022 at 1:30 AM Laurent Pinchart <\nlaurent.pinchart@ideasonboard.com> wrote:\n\n> On Fri, Jun 24, 2022 at 01:42:46PM +0100, Kieran Bingham wrote:\n> > Quoting Laurent Pinchart via libcamera-devel (2022-06-24 00:21:57)\n> > > Hello,\n> > >\n> > > This patch series fixes a long-standing issue in the libcamerasrc\n> > > element, namely the fact that it never queues more than one request at\n> a\n> > > time.\n> >\n> > Excellent, I've heard reports of performance on Raspberry Pi with\n> > libcamerasrc being half the expected rate as well, so I suspect this was\n> > also a cause - and will fix things there.\n>\n> Any volunteer to test this on Raspberry Pi ? :-)\n>\n> > \\o/\n> >\n> > > It took me quite a while to grasp the implementation of libcamerasrc,\n> > > and this probably shows through the patch series. I don't claim any of\n> > > this is particularly good, only that it enables libcamerasrc usage with\n> > > rkisp1 and vimc, which isn't possible today, and that it didn't\n> > > introduce any regression I could notice.\n> > >\n> > > Reviews from developers with more experience in GStreamer than me would\n> > > be appreciated :-)\n> > >\n> > > Laurent Pinchart (13):\n> > > gstreamer: Use gst_task_resume() when available\n> > > gstreamer: Inline gst_libcamera_buffer_get_frame_buffer()\n> > > gstreamer: Move variable to loop scope\n> > > gstreamer: Pass Stream to RequestWrap::addBuffer()\n> > > gstreamer: Move timestamp calculation out of pad loop\n> > > gstreamer: Rename queued requests queue to queuedRequests_\n> > > gstreamer: Handle completed requests in the libcamerasrc task\n> > > gstreamer: Combine the two pad loops in the task run handler\n> > > gstreamer: Use dedicated lock for request queues\n> > > gstreamer: Fix pads locking\n> > > gstreamer: Split request creation to a separate function\n> > > gstreamer: Split completed request processing to a separate function\n> > > gstreamer: Fix race conditions in task pause/resume\n> > >\n> > > src/gstreamer/gstlibcamera-utils.cpp | 16 +-\n> > > src/gstreamer/gstlibcamera-utils.h | 4 +-\n> > > src/gstreamer/gstlibcameraallocator.cpp | 3 +-\n> > > src/gstreamer/gstlibcameraallocator.h | 2 +-\n> > > src/gstreamer/gstlibcamerapad.cpp | 35 ---\n> > > src/gstreamer/gstlibcamerapad.h | 6 -\n> > > src/gstreamer/gstlibcamerapool.cpp | 14 --\n> > > src/gstreamer/gstlibcamerapool.h | 4 -\n> > > src/gstreamer/gstlibcamerasrc.cpp | 308 ++++++++++++++++--------\n> > > 9 files changed, 227 insertions(+), 165 deletions(-)\n> > >\n> > >\n> > > base-commit: 7ec3bfedbe22962600b438a13d9e13d37d55ce25\n>\n> --\n> Regards,\n>\n> Laurent Pinchart\n>","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id B2225BD808\n\tfor ;\n\tMon, 27 Jun 2022 17:56:54 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id EDE3265635;\n\tMon, 27 Jun 2022 19:56:53 +0200 (CEST)","from mail-yw1-x112b.google.com (mail-yw1-x112b.google.com\n\t[IPv6:2607:f8b0:4864:20::112b])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 970356059B\n\tfor ;\n\tMon, 27 Jun 2022 19:56:51 +0200 (CEST)","by mail-yw1-x112b.google.com with SMTP id\n\t00721157ae682-31bf327d4b5so3921967b3.13\n\tfor ;\n\tMon, 27 Jun 2022 10:56:51 -0700 (PDT)"],"DKIM-Signature":["v=1; 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boundary=\"000000000000f5900d05e271a4f3\"","Subject":"Re: [libcamera-devel] [PATCH 00/13] gstreamer: Queue multiple\n\trequests","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","From":"Vedant Paranjape via libcamera-devel\n\t","Reply-To":"Vedant Paranjape ","Cc":"rishikeshdonadkar@gmail.com,\n\tLibCamera Devel ,\n\tNicolas Dufresne ","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]