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\n\tMon, 21 Mar 2022 03:27:04 -0700 (PDT)", "To": "libcamera-devel@lists.libcamera.org", "Date": "Mon, 21 Mar 2022 10:26:57 +0000", "Message-Id": "<20220321102702.1753800-1-naush@raspberrypi.com>", "X-Mailer": "git-send-email 2.25.1", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "Subject": "[libcamera-devel] [PATCH v3 0/5] Raspberry Pi: Efficient\n\tstart/stop/start sequences", "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": "Naushir Patuck via libcamera-devel\n\t<libcamera-devel@lists.libcamera.org>", "Reply-To": "Naushir Patuck <naush@raspberrypi.com>", "Errors-To": "libcamera-devel-bounces@lists.libcamera.org", "Sender": "\"libcamera-devel\" <libcamera-devel-bounces@lists.libcamera.org>" }, "content": "Hi,\n\nFor version 3 of this series, I've removed the patch to add a timer that waits\nfor 5s after stop() to de-allocate buffers. David and me have had a chat about\nthis and we think for now it is best that we have fully deterministic behavior for\nbuffer allocations, and avoid CMA fragmentation on the Raspberry Pi platforms.\nApart from that, I have renamed the reallocate flag based on Kieran's suggestion.\n\nRegards,\nNaush\n\nNaushir Patuck (5):\n pipeline: raspberrypi: Avoid over-allocation for ISP Output 1\n pipeline: raspberrypi: Move freeBuffers() to the RPiCameraData class\n pipeline: raspberrypi: Free buffers in the RPiCamera destructor and\n re-configure\n pipeline: raspberrypi: Repurpose RPi::Stream::reset()\n libcamera: v4l2_videodevice: Empty the V4L2 buffer cache on\n streamOff()\n\n include/libcamera/internal/v4l2_videodevice.h | 1 +\n .../pipeline/raspberrypi/raspberrypi.cpp | 58 ++++++++++++-------\n .../pipeline/raspberrypi/rpi_stream.cpp | 13 ++---\n .../pipeline/raspberrypi/rpi_stream.h | 2 +-\n src/libcamera/v4l2_videodevice.cpp | 16 +++++\n 5 files changed, 61 insertions(+), 29 deletions(-)" }