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\n\tSun, 18 Sep 2022 19:57:25 -0700 (PDT)", "To": "libcamera-devel@lists.libcamera.org", "Date": "Mon, 19 Sep 2022 08:27:08 +0530", "Message-Id": "<20220919025709.34528-1-rishikeshdonadkar@gmail.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v6 0/1] Provide multiple colorimetry for\n\tlibcamerasrc.", "X-BeenThere": "libcamera-devel@lists.libcamera.org", "X-Mailman-Version": "2.1.29", "Precedence": "list", "List-Id": "<libcamera-devel.lists.libcamera.org>", "List-Unsubscribe": "<https://lists.libcamera.org/options/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=unsubscribe>", "List-Archive": "<https://lists.libcamera.org/pipermail/libcamera-devel/>", "List-Post": "<mailto:libcamera-devel@lists.libcamera.org>", "List-Help": "<mailto:libcamera-devel-request@lists.libcamera.org?subject=help>", "List-Subscribe": "<https://lists.libcamera.org/listinfo/libcamera-devel>,\n\t<mailto:libcamera-devel-request@lists.libcamera.org?subject=subscribe>", "From": "Rishikesh Donadkar via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Rishikesh Donadkar <rishikeshdonadkar@gmail.com>", "Cc": "nicolas.dufresne@collabora.com, vedantparanjape160201@gmail.com", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "GStreamer pipeline supports passing multiple colorimetry as a comma\nseparated list.\n\nFor Example :\n\ngst-launch-1.0 libcamerasrc ! \"video/x-raw,colorimetry={bt2020,bt709,sRGB}\" ! glimagesink\n\nIn this case, if supported by the camera one of bt2020, bt709, sRGB\nshould be applied.\n\nThis series aims to adds multiple colorimetry support to the libcamera\ngstreamer element.\n\n---\nchanges from v1 to v2:\n- Moved the function colorspace_from_colorimetry() from PATCH 1/2 to\n PATCH 2/2.\n\nchanges from v2 to v3:\n- Rebase on top of [v3 PATCH 4/4] gstreamer: Provide colorimetry <> ColorSpace mappings.\n- Use the comparator utility function gst_video_colorimetry_is_equal()\n to cut down code.\n- Rename dup_stream_cfg to pristine_stream_cfg.\n- Log the colorimetry that is selected from the list.\n- Change the API for the function gst_libcamera_configure_stream_from_caps()\n to pass pass state->config_ here instead of taking it in a holder\n variable reference.\n\nchanges from v3 to v4:\n- Discard the approach form expanding the colorimetry list through caps\n normalization. Instead enumerate the colorimetry list and try out the\n colorimetry.\n- Add error checking for invalid colorimetry.\n\nchanges for v4 to v5:\n- Use gboolean instead of int. Return true/false.\n- Add else if for the mutually exclusive conditions.\n- Add final else to trace if anything other than a string or a list is\n passed in the colorimetry field by the user.\n\nchanges from v5 to v6:\n- Compare colorspace instead of colorimetry, this will reduce the\n colorimetry<->colorspace conversion.\n- Compare the colorspace applied directly with the colorimetry requested\n in the caps.\n---\n\n----\nTest results(on RPi 4 + OV5647):\ngst-launch-1.0 libcamerasrc ! \"video/x-raw,colorimetry={bt2020,bt709,sRGB}\" ! glimagesink\nSelected colorimetry bt709\n\ngst-launch-1.0 libcamerasrc ! \"video/x-raw,colorimetry={sRGB,bt601,bt2020,bt709}\" ! glimagesink\nNegotiation fails on bt601.\n\ngst-launch-1.0 libcamerasrc ! \"video/x-raw,colorimetry={sRGB,bt601,bt2020,bt709,2:4:5:4}\" ! glimagesink\nSelected colorimetry bt601.\n\ngst-launch-1.0 libcamerasrc ! \"video/x-raw,colorimetry={sRGB,bt709,bt2020,bt601}\" ! glimagesink\nSelected colorimetry bt709\n----\n\nRishikesh Donadkar (1):\n gstreamer: Provide multiple colorimetry support for libcamerasrc\n\n src/gstreamer/gstlibcamera-utils.cpp | 49 +++++++++++++++++++++++-----\n src/gstreamer/gstlibcamera-utils.h | 4 ++-\n src/gstreamer/gstlibcamerasrc.cpp | 2 +-\n 3 files changed, 44 insertions(+), 11 deletions(-)" }