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    VEYE-MIPI-327E preview 速度調整?

    Scheduled Pinned Locked Moved VEYE MIPI camera
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    • K Offline
      KUO
      last edited by

      我使用的是VEYE-MIPI-327E 我設定fps 30/1 用gstreamer和vlc 去preview 畫面都會有延遲的現象
      請問有甚麼方法可以提升preview時的順暢度嗎?

      K 1 Reply Last reply Reply Quote 0
      • K Offline
        KUO @KUO
        last edited by

        我將gstreamer的指令framrate調高到60/1 一樣會延遲測試出來還是每秒30張

        veye_xummV 1 Reply Last reply Reply Quote 0
        • veye_xummV Online
          veye_xumm @KUO
          last edited by

          @kuo
          这个相机只有两种帧率 25和30，通过i2c脚本修改NTSC和PAL模式修改。
          所以改gstreamer中的参数是无效的。
          延迟的话，vlc默认是有比较大的缓存的。
          gstreamer的缓存方面我就不太了解。
          你想要的延迟范围是多少？

          Questions will be answered as soon as possible, please be patient.
          如果你使用中文，请直接用中文提问。
          May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

          K 1 Reply Last reply Reply Quote 0
          • K Offline
            KUO @veye_xumm
            last edited by

            @veye_xumm (1)那請問有辦法更改它輸出的模式嗎?目前是UYVY可以讓它切換成MJPG嗎?
            因為畫面會延遲猜想應該是因為UYVY的資料量較大所以產生畫面延遲，既然FPS無法再變得更高那想問能不能把資料流改成MJPG這種有壓縮的資料，
            或許畫面就不會延遲。

            (2)這個攝像頭可以輸出1080P以外的尺寸嗎?像是720P或360P

            veye_xummV 1 Reply Last reply Reply Quote 0
            • veye_xummV Online
              veye_xumm @KUO
              last edited by

              @kuo 不行，不行。
              你用的什么主板？

              Questions will be answered as soon as possible, please be patient.
              如果你使用中文，请直接用中文提问。
              May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

              K 1 Reply Last reply Reply Quote 0
              • K Offline
                KUO @veye_xumm
                last edited by

                @veye_xumm Raspberry pi 4B

                veye_xummV 1 Reply Last reply Reply Quote 0
                • veye_xummV Online
                  veye_xumm @KUO
                  last edited by

                  @kuo 建议您试试lagcy mode

                  Questions will be answered as soon as possible, please be patient.
                  如果你使用中文，请直接用中文提问。
                  May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                  K 1 Reply Last reply Reply Quote 0
                  • K Offline
                    KUO @veye_xumm
                    last edited by

                    @veye_xumm said in VEYE-MIPI-327E preview 速度調整?:

                    lagcy mode

                    請問這是甚麼?PIOS的版本嗎?

                    veye_xummV 1 Reply Last reply Reply Quote 0
                    • veye_xummV Online
                      veye_xumm @KUO
                      last edited by

                      @kuo http://wiki.veye.cc/index.php/Raspberry_Pi_Application_Note_Index/zh
                      1.1.2

                      Questions will be answered as soon as possible, please be patient.
                      如果你使用中文，请直接用中文提问。
                      May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                      K 1 Reply Last reply Reply Quote 0
                      • K Offline
                        KUO @veye_xumm
                        last edited by

                        @veye_xumm
                        (1)我試著使用 git clone https://github.com/veyeimaging/raspberrypi.git 提供的 ./veye_raspipreview -t -1 指令去preview
                        不過沒有出現畫面，我裝的driver是veyecam2m，請問要做甚麼調整?
                        9214.jpg
                        (2)請問我能直接使用libcamera來preview嗎?
                        (3)我用gstreamer和vlc來preview在30FPS的情況下畫面會卡頓是正常的嗎?您那邊畫面是順暢的嗎?

                        veye_xummV 1 Reply Last reply Reply Quote 0
                        • veye_xummV Online
                          veye_xumm @KUO
                          last edited by

                          @kuo

                          (1)我試著使用 git clone https://github.com/veyeimaging/raspberrypi.git 提供的 ./veye_raspipreview -t -1 指令去preview

                          不過沒有出現畫面，我裝的driver是veyecam2m，請問要做甚麼調整?

                          这个是lagcy模式，需要uninstall驱动，打开lagcy camera支持才行。
                          http://wiki.veye.cc/index.php/VEYE_MIPI_290/327_for_Raspberry_Pi/zh#.E5.85.B3.E4.BA.8EpiOS.E7.89.88.E6.9C.AC---Bullseye
                          part2

                          (2)請問我能直接使用libcamera來preview嗎?

                          libcamera本质上是一个isp的框架，我们的相机本身带了isp功能。所以不需要，现在也不支持libcamera。

                          (3)我用gstreamer和vlc來preview在30FPS的情況下畫面會卡頓是正常的嗎?您那邊畫面是順暢的嗎?

                          这个主要原因是大量的使用cpu做软件的内存拷贝导致的。 还是建议你用lagcy mode。

                          Questions will be answered as soon as possible, please be patient.
                          如果你使用中文，请直接用中文提问。
                          May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                          K 2 Replies Last reply Reply Quote 0
                          • K Offline
                            KUO @veye_xumm
                            last edited by

                            This post is deleted!
                            1 Reply Last reply Reply Quote 0
                            • K Offline
                              KUO @veye_xumm
                              last edited by

                              @veye_xumm 感謝您 我試成功了
                              不過有一個疑問 沒有裝driver 他是怎麼辨識設備的?

                              veye_xummV 1 Reply Last reply Reply Quote 0
                              • veye_xummV Online
                                veye_xumm @KUO
                                last edited by

                                @kuo 这个是树莓派的一种机制。其实并没有识别，cpu端通过mmal库，访问到gpu端，gpu端访问的camera。所以整体都是在应用层。

                                Questions will be answered as soon as possible, please be patient.
                                如果你使用中文，请直接用中文提问。
                                May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                K 1 Reply Last reply Reply Quote 0
                                • K Offline
                                  KUO @veye_xumm
                                  last edited by

                                  @veye_xumm 請問i2c裡面是否可以調整AF值 我想製作相機自動對焦的功能

                                  veye_xummV 1 Reply Last reply Reply Quote 0
                                  • veye_xummV Online
                                    veye_xumm @KUO
                                    last edited by

                                    @kuo 不好意思，现在相机没有这个功能。

                                    Questions will be answered as soon as possible, please be patient.
                                    如果你使用中文，请直接用中文提问。
                                    May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                    K 1 Reply Last reply Reply Quote 0
                                    • K Offline
                                      KUO @veye_xumm
                                      last edited by KUO

                                      @veye_xumm 那如果如無法取得AF值 請問如何做對焦? 只能調整鏡頭嗎?

                                      veye_xummV 1 Reply Last reply Reply Quote 0
                                      • veye_xummV Online
                                        veye_xumm @KUO
                                        last edited by

                                        @kuo 两种方法，一种是你的后端程序去统计AF统计信息。 另一种就是直接用手动聚焦镜头，不用AF功能。

                                        Questions will be answered as soon as possible, please be patient.
                                        如果你使用中文，请直接用中文提问。
                                        May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                        K 1 Reply Last reply Reply Quote 0
                                        • K Offline
                                          KUO @veye_xumm
                                          last edited by KUO

                                          @veye_xumm AF统计信息該如何取得? 我想取得AF edge 值看他何時是清新何時是模糊

                                          veye_xummV 1 Reply Last reply Reply Quote 0
                                          • veye_xummV Online
                                            veye_xumm @KUO
                                            last edited by

                                            @kuo 之前说过了，摄像机没有统计这个参数的功能。

                                            Questions will be answered as soon as possible, please be patient.
                                            如果你使用中文，请直接用中文提问。
                                            May the force be with YOU. (This is the translation of the mysterious Chinese symbol above.)

                                            K 1 Reply Last reply Reply Quote 0

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