[{"id":18700,"web_url":"https://patchwork.libcamera.org/comment/18700/","msgid":"<28218c71-4020-0275-ec56-60e3a480f499@ideasonboard.com>","date":"2021-08-11T13:58:30","subject":"Re: [libcamera-devel] [PATCH v6] test: gstreamer: Add test for\n\tgstreamer single stream","submitter":{"id":75,"url":"https://patchwork.libcamera.org/api/people/75/","name":"Jean-Michel Hautbois","email":"jeanmichel.hautbois@ideasonboard.com"},"content":"Hi Vedant,\n\nThanks for the patch,\n\nOn 11/08/2021 15:48, Vedant Paranjape wrote:\n> This patch adds a test to test if single stream using\n> libcamera's gstreamer element works.\n> \n\nCould you elaborate the commit message ?\nWhat is the gstreamer pipeline used for testing ?\nAs far as I can tell, it looks like you are doing something similar to\ngst-launch libcamerasrc ! videoconvert ! fakesink\n\nWhy do you need a convert before the sink as you are not doing anything\nwith the buffer ?\nThis might be useful information.\n\n> Signed-off-by: Vedant Paranjape \n> Reviewed-by: Paul Elder \n> ---\n> .../gstreamer_single_stream_test.cpp | 116 ++++++++++++++++++\n> test/gstreamer/meson.build | 19 +++\n> test/meson.build | 1 +\n> 3 files changed, 136 insertions(+)\n> create mode 100644 test/gstreamer/gstreamer_single_stream_test.cpp\n> create mode 100644 test/gstreamer/meson.build\n> \n> diff --git a/test/gstreamer/gstreamer_single_stream_test.cpp b/test/gstreamer/gstreamer_single_stream_test.cpp\n> new file mode 100644\n> index 00000000..1cee23eb\n> --- /dev/null\n> +++ b/test/gstreamer/gstreamer_single_stream_test.cpp\n> @@ -0,0 +1,116 @@\n> +#include \n> +#include \n> +\n> +#include \"test.h\"\n> +\n> +using namespace std;\n> +\n> +class GstreamerSingleStreamTest : public Test\n> +{\n> +protected:\n> +\tint init() override\n> +\t{\n> +\t\t/* Initialize GStreamer */\n> +\t\tGError *err_init = nullptr;\n> +\t\tif (!gst_init_check(nullptr, nullptr, &err_init)) {\n> +\t\t\tg_printerr(\"Could not initialize GStreamer: %s\\n\",\n> +\t\t\t\t err_init ? err_init->message : \"unknown error\");\n> +\t\t\tif (err_init)\n> +\t\t\t\tg_error_free(err_init);\n> +\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\t/* Create the elements */\n> +\t\tlibcamera_src_ = gst_element_factory_make(\"libcamerasrc\", \"libcamera\");\n> +\t\tconvert0_ = gst_element_factory_make(\"videoconvert\", \"convert0\");\n> +\t\tsink0_ = gst_element_factory_make(\"fakevideosink\", \"sink0\");\n\nOut of curiosity: are you planning to have more complex tests too ?\nSomething to verify the framerate for instance ?\n\n> +\n> +\t\t/* Create the empty pipeline_ */\n> +\t\tpipeline_ = gst_pipeline_new(\"test-pipeline\");\n> +\n> +\t\tif (!pipeline_ || !convert0_ || !sink0_ || !libcamera_src_) {\n> +\t\t\tg_printerr(\"Not all elements could be created.\\n\");\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\treturn TestPass;\n> +\t}\n> +\n> +\tvoid cleanup() override\n> +\t{\n> +\t\tgst_message_unref(msg_);\n> +\t\tgst_object_unref(bus_);\n> +\t\tgst_element_set_state(pipeline_, GST_STATE_NULL);\n> +\t\tgst_object_unref(pipeline_);\n> +\t}\n> +\n> +\tint run() override\n> +\t{\n> +\t\t/* Build the pipeline */\n> +\t\tgst_bin_add_many(GST_BIN(pipeline_), libcamera_src_, convert0_, sink0_, NULL);\n> +\t\tif (gst_element_link_many(libcamera_src_, convert0_, sink0_, NULL) != TRUE) {\n> +\t\t\tg_printerr(\"Elements could not be linked.\\n\");\n> +\t\t\tgst_object_unref(pipeline_);\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\t/* Start playing */\n> +\t\tret_ = gst_element_set_state(pipeline_, GST_STATE_PLAYING);\n> +\t\tif (ret_ == GST_STATE_CHANGE_FAILURE) {\n> +\t\t\tg_printerr(\"Unable to set the pipeline to the playing state.\\n\");\n> +\t\t\tgst_object_unref(pipeline_);\n> +\t\t\treturn TestFail;\n> +\t\t}\n> +\n> +\t\t/* Wait until error or EOS or timeout after 2 seconds*/\n> +\t\tGstClockTime timeout = 2000000000;\n> +\t\tbus_ = gst_element_get_bus(pipeline_);\n> +\t\tmsg_ = gst_bus_timed_pop_filtered(bus_, timeout,\n> +\t\t\t\t\t\t GstMessageType((uint)GST_MESSAGE_ERROR | (uint)GST_MESSAGE_EOS));\n> +\n> +\t\t/* Parse error message */\n> +\t\tif (msg_ == NULL)\n> +\t\t\treturn TestPass;\n> +\n> +\t\tswitch (GST_MESSAGE_TYPE(msg_)) {\n> +\t\tcase GST_MESSAGE_ERROR:\n> +\t\t\tGstreamerPrintError(msg_);\n> +\t\t\treturn TestFail;\n> +\t\t\tbreak;\n> +\t\tcase GST_MESSAGE_EOS:\n> +\t\t\tg_print(\"End-Of-Stream reached.\\n\");\n> +\t\t\treturn TestFail;\n> +\t\t\tbreak;\n> +\t\tdefault:\n> +\t\t\tg_printerr(\"Unexpected message received.\\n\");\n> +\t\t\treturn TestFail;\n> +\t\t\tbreak;\n> +\t\t}\n> +\n> +\t\treturn TestPass;\n> +\t}\n> +\n> +private:\n> +\tGstElement *pipeline_, *libcamera_src_, *convert0_, *sink0_;\n> +\tGstBus *bus_;\n> +\tGstMessage *msg_;\n> +\tGstStateChangeReturn ret_;\n> +\n> +\tvoid GstreamerPrintError(GstMessage *msg)\n> +\t{\n> +\t\tGError *err;\n> +\t\tgchar *debug_info;\n> +\n> +\t\tgst_message_parse_error(msg, &err, &debug_info);\n> +\t\tg_printerr(\"Error received from element %s: %s\\n\",\n> +\t\t\t GST_OBJECT_NAME(msg->src), err->message);\n> +\t\tg_printerr(\"Debugging information: %s\\n\",\n> +\t\t\t debug_info ? debug_info : \"none\");\n> +\t\tg_clear_error(&err);\n> +\t\tg_free(debug_info);\n> +\t}\n> +};\n> +\n> +TEST_REGISTER(GstreamerSingleStreamTest)\n> +\n> diff --git a/test/gstreamer/meson.build b/test/gstreamer/meson.build\n> new file mode 100644\n> index 00000000..b99aa0da\n> --- /dev/null\n> +++ b/test/gstreamer/meson.build\n> @@ -0,0 +1,19 @@\n> +# SPDX-License-Identifier: CC0-1.0\n> +\n> +if not gst_enabled\n> + subdir_done()\n> +endif\n> +\n> +gstreamer_tests = [\n> + ['single_stream_test', 'gstreamer_single_stream_test.cpp'],\n> +]\n> +gstreamer_dep = dependency('gstreamer-1.0', required: true)\n> +\n> +foreach t : gstreamer_tests\n> + exe = executable(t[0], t[1],\n> + dependencies : [libcamera_private, gstreamer_dep],\n> + link_with : test_libraries,\n> + include_directories : test_includes_internal)\n> +\n> + test(t[0], exe, suite : 'gstreamer', is_parallel : false)\n> +endforeach\n> diff --git a/test/meson.build b/test/meson.build\n> index 3bceb5df..d0466f17 100644\n> --- a/test/meson.build\n> +++ b/test/meson.build\n> @@ -11,6 +11,7 @@ subdir('libtest')\n> \n> subdir('camera')\n> subdir('controls')\n> +subdir('gstreamer')\n> subdir('ipa')\n> subdir('ipc')\n> subdir('log')\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 ED02CC3240\n\tfor ;\n\tWed, 11 Aug 2021 13:58:33 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 54D696884F;\n\tWed, 11 Aug 2021 15:58:33 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 8B52468826\n\tfor ;\n\tWed, 11 Aug 2021 15:58:32 +0200 (CEST)","from tatooine.ideasonboard.com (unknown\n\t[IPv6:2a01:e0a:169:7140:3594:1af5:960b:2013])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 1DAD5DD;\n\tWed, 11 Aug 2021 15:58:32 +0200 (CEST)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"F7JsZZWV\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1628690312;\n\tbh=MrZsgE9RpHcBKlHgjcA24OK8TNCV6QuKXONu05wZcoo=;\n\th=Subject:To:References:From:Date:In-Reply-To:From;\n\tb=F7JsZZWVoORgJxsxhcHG1zzfa8MYPt7Nr8EMgf2/p55irMRtcDAC+R9J/jcRRN3Tn\n\tTprR1T7FG7YhCs0kO3AUfOT03aVA5mJ5mRwLsoqBlzuNq82OBu56Qe1+dgiLgonceK\n\t+PVtwBqivAGzIetfGxuM/nsDdwvoILHsvyDtyD04=","To":"Vedant Paranjape ,\n\tlibcamera-devel@lists.libcamera.org","References":"<20210811134820.126423-1-vedantparanjape160201@gmail.com>","From":"Jean-Michel Hautbois ","Message-ID":"<28218c71-4020-0275-ec56-60e3a480f499@ideasonboard.com>","Date":"Wed, 11 Aug 2021 15:58:30 +0200","User-Agent":"Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101\n\tThunderbird/78.11.0","MIME-Version":"1.0","In-Reply-To":"<20210811134820.126423-1-vedantparanjape160201@gmail.com>","Content-Type":"text/plain; charset=utf-8","Content-Language":"en-US","Content-Transfer-Encoding":"7bit","Subject":"Re: [libcamera-devel] [PATCH v6] test: gstreamer: Add test for\n\tgstreamer single stream","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","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":18703,"web_url":"https://patchwork.libcamera.org/comment/18703/","msgid":"","date":"2021-08-11T14:33:12","subject":"Re: [libcamera-devel] [PATCH v6] test: gstreamer: Add test for\n\tgstreamer single stream","submitter":{"id":85,"url":"https://patchwork.libcamera.org/api/people/85/","name":"Vedant Paranjape","email":"vedantparanjape160201@gmail.com"},"content":"Hi Jean-Michel,\nThanks for the review,\n\n\nOn Wed, Aug 11, 2021 at 7:28 PM Jean-Michel Hautbois <\njeanmichel.hautbois@ideasonboard.com> wrote:\n\n> Hi Vedant,\n>\n> Thanks for the patch,\n>\n> On 11/08/2021 15:48, Vedant Paranjape wrote:\n> > This patch adds a test to test if single stream using\n> > libcamera's gstreamer element works.\n> >\n>\n> Could you elaborate the commit message ?\n> What is the gstreamer pipeline used for testing ?\n>\n\ngstreamer pipeline is being used to test the gstreamer element in libcamera.\n\nAs far as I can tell, it looks like you are doing something similar to\n> gst-launch libcamerasrc ! videoconvert ! fakesink\n>\n> Why do you need a convert before the sink as you are not doing anything\n> with the buffer ?\n>\n\nTo check if the camera generated legible data.\n\nThis might be useful information.\n>\n> > Signed-off-by: Vedant Paranjape \n> > Reviewed-by: Paul Elder \n> > ---\n> > .../gstreamer_single_stream_test.cpp | 116 ++++++++++++++++++\n> > test/gstreamer/meson.build | 19 +++\n> > test/meson.build | 1 +\n> > 3 files changed, 136 insertions(+)\n> > create mode 100644 test/gstreamer/gstreamer_single_stream_test.cpp\n> > create mode 100644 test/gstreamer/meson.build\n> >\n> > diff --git a/test/gstreamer/gstreamer_single_stream_test.cpp\n> b/test/gstreamer/gstreamer_single_stream_test.cpp\n> > new file mode 100644\n> > index 00000000..1cee23eb\n> > --- /dev/null\n> > +++ b/test/gstreamer/gstreamer_single_stream_test.cpp\n> > @@ -0,0 +1,116 @@\n> > +#include \n> > +#include \n> > +\n> > +#include \"test.h\"\n> > +\n> > +using namespace std;\n> > +\n> > +class GstreamerSingleStreamTest : public Test\n> > +{\n> > +protected:\n> > + int init() override\n> > + {\n> > + /* Initialize GStreamer */\n> > + GError *err_init = nullptr;\n> > + if (!gst_init_check(nullptr, nullptr, &err_init)) {\n> > + g_printerr(\"Could not initialize GStreamer: %s\\n\",\n> > + err_init ? err_init->message : \"unknown\n> error\");\n> > + if (err_init)\n> > + g_error_free(err_init);\n> > +\n> > + return TestFail;\n> > + }\n> > +\n> > + /* Create the elements */\n> > + libcamera_src_ = gst_element_factory_make(\"libcamerasrc\",\n> \"libcamera\");\n> > + convert0_ = gst_element_factory_make(\"videoconvert\",\n> \"convert0\");\n> > + sink0_ = gst_element_factory_make(\"fakevideosink\",\n> \"sink0\");\n>\n> Out of curiosity: are you planning to have more complex tests too ?\n> Something to verify the framerate for instance ?\n>\n\nYes, I will eventually do this, next in line is test for multistream using\ngstreamer.\n\n> +\n> > + /* Create the empty pipeline_ */\n> > + pipeline_ = gst_pipeline_new(\"test-pipeline\");\n> > +\n> > + if (!pipeline_ || !convert0_ || !sink0_ ||\n> !libcamera_src_) {\n> > + g_printerr(\"Not all elements could be created.\\n\");\n> > + return TestFail;\n> > + }\n> > +\n> > + return TestPass;\n> > + }\n> > +\n> > + void cleanup() override\n> > + {\n> > + gst_message_unref(msg_);\n> > + gst_object_unref(bus_);\n> > + gst_element_set_state(pipeline_, GST_STATE_NULL);\n> > + gst_object_unref(pipeline_);\n> > + }\n> > +\n> > + int run() override\n> > + {\n> > + /* Build the pipeline */\n> > + gst_bin_add_many(GST_BIN(pipeline_), libcamera_src_,\n> convert0_, sink0_, NULL);\n> > + if (gst_element_link_many(libcamera_src_, convert0_,\n> sink0_, NULL) != TRUE) {\n> > + g_printerr(\"Elements could not be linked.\\n\");\n> > + gst_object_unref(pipeline_);\n> > + return TestFail;\n> > + }\n> > +\n> > + /* Start playing */\n> > + ret_ = gst_element_set_state(pipeline_, GST_STATE_PLAYING);\n> > + if (ret_ == GST_STATE_CHANGE_FAILURE) {\n> > + g_printerr(\"Unable to set the pipeline to the\n> playing state.\\n\");\n> > + gst_object_unref(pipeline_);\n> > + return TestFail;\n> > + }\n> > +\n> > + /* Wait until error or EOS or timeout after 2 seconds*/\n> > + GstClockTime timeout = 2000000000;\n> > + bus_ = gst_element_get_bus(pipeline_);\n> > + msg_ = gst_bus_timed_pop_filtered(bus_, timeout,\n> > +\n> GstMessageType((uint)GST_MESSAGE_ERROR | (uint)GST_MESSAGE_EOS));\n> > +\n> > + /* Parse error message */\n> > + if (msg_ == NULL)\n> > + return TestPass;\n> > +\n> > + switch (GST_MESSAGE_TYPE(msg_)) {\n> > + case GST_MESSAGE_ERROR:\n> > + GstreamerPrintError(msg_);\n> > + return TestFail;\n> > + break;\n> > + case GST_MESSAGE_EOS:\n> > + g_print(\"End-Of-Stream reached.\\n\");\n> > + return TestFail;\n> > + break;\n> > + default:\n> > + g_printerr(\"Unexpected message received.\\n\");\n> > + return TestFail;\n> > + break;\n> > + }\n> > +\n> > + return TestPass;\n> > + }\n> > +\n> > +private:\n> > + GstElement *pipeline_, *libcamera_src_, *convert0_, *sink0_;\n> > + GstBus *bus_;\n> > + GstMessage *msg_;\n> > + GstStateChangeReturn ret_;\n> > +\n> > + void GstreamerPrintError(GstMessage *msg)\n> > + {\n> > + GError *err;\n> > + gchar *debug_info;\n> > +\n> > + gst_message_parse_error(msg, &err, &debug_info);\n> > + g_printerr(\"Error received from element %s: %s\\n\",\n> > + GST_OBJECT_NAME(msg->src), err->message);\n> > + g_printerr(\"Debugging information: %s\\n\",\n> > + debug_info ? debug_info : \"none\");\n> > + g_clear_error(&err);\n> > + g_free(debug_info);\n> > + }\n> > +};\n> > +\n> > +TEST_REGISTER(GstreamerSingleStreamTest)\n> > +\n> > diff --git a/test/gstreamer/meson.build b/test/gstreamer/meson.build\n> > new file mode 100644\n> > index 00000000..b99aa0da\n> > --- /dev/null\n> > +++ b/test/gstreamer/meson.build\n> > @@ -0,0 +1,19 @@\n> > +# SPDX-License-Identifier: CC0-1.0\n> > +\n> > +if not gst_enabled\n> > + subdir_done()\n> > +endif\n> > +\n> > +gstreamer_tests = [\n> > + ['single_stream_test', 'gstreamer_single_stream_test.cpp'],\n> > +]\n> > +gstreamer_dep = dependency('gstreamer-1.0', required: true)\n> > +\n> > +foreach t : gstreamer_tests\n> > + exe = executable(t[0], t[1],\n> > + dependencies : [libcamera_private, gstreamer_dep],\n> > + link_with : test_libraries,\n> > + include_directories : test_includes_internal)\n> > +\n> > + test(t[0], exe, suite : 'gstreamer', is_parallel : false)\n> > +endforeach\n> > diff --git a/test/meson.build b/test/meson.build\n> > index 3bceb5df..d0466f17 100644\n> > --- a/test/meson.build\n> > +++ b/test/meson.build\n> > @@ -11,6 +11,7 @@ subdir('libtest')\n> >\n> > subdir('camera')\n> > subdir('controls')\n> > +subdir('gstreamer')\n> > subdir('ipa')\n> > subdir('ipc')\n> > subdir('log')\n> >\n>\n\nRegards,\n*Vedant Paranjape*","headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from 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(PDT)","MIME-Version":"1.0","References":"<20210811134820.126423-1-vedantparanjape160201@gmail.com>\n\t<28218c71-4020-0275-ec56-60e3a480f499@ideasonboard.com>","In-Reply-To":"<28218c71-4020-0275-ec56-60e3a480f499@ideasonboard.com>","From":"Vedant Paranjape ","Date":"Wed, 11 Aug 2021 20:03:12 +0530","Message-ID":"","To":"Jean-Michel Hautbois ","Content-Type":"multipart/alternative; boundary=\"000000000000257b3c05c949808d\"","Subject":"Re: [libcamera-devel] [PATCH v6] test: gstreamer: Add test for\n\tgstreamer single stream","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","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]