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    H265 ENCODER RTL V2.0仿真教程

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    • T Offline
      tang @wr115946873
      last edited by

      @wr115946873 我们一直都是在Linux下仿真的(验证正确,如下图),没有在Windows下仿过,建议更换仿真平台或者debug enc_ctrl模块查看某一模块done_i是否未收回,并进一步debug相关模块
      1_1561424630890_截图.JPG
      Linux modelsim 10c
      0_1561424630889_modelsim.JPG

      1 Reply Last reply Reply Quote 0
      • G Offline
        gavinchen @tang
        last edited by

        @tang 是否可以提供以下原始YUV格式的测试数据
        BlowingBubbles: 416x240
        BasketballDrill: 832x480
        ChinaSpeed: 1024x768
        FourPeople: 1280x720
        BasketballDrive: 832x480
        TouchDownPass: 3840x2160

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        • J Offline
          jie
          last edited by jie

          原始YUV格式的测试数据
          http://140.118.175.164/PCChang/APSIPA2013/HEVCDataHiding/

          用window版 f265.exe, linux 版可能 segment fault

          G 1 Reply Last reply Reply Quote 0
          • G Offline
            gavinchen @jie
            last edited by

            @jie
            0_1561519972869_936685f7-abfe-4fd7-bdb7-2097c18a7480-image.png

            1. 缺少 rc_coefficient.txt 和rc_frameqp.txt文件。
            2. 对于ime_cfg.dat文件,对于不同的分辨率/帧数的视频,ime_cfg.dat文件应该是不同的,有没有相关文件可以提供,或者release相应的软件来生成需要的ime_cfg.dat文件
            T 龙 2 Replies Last reply Reply Quote 0
            • T Offline
              tang @gavinchen
              last edited by

              @gavinchen

              1. 那些测试序列是HEVC官方序列,搜HEVC测试序列即可
              2. rc相关文件不影响正常仿真
              3. ime_cfg仅配置运动搜索范围、形状等参数,一般情况下可用同一套参数
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              • J Offline
                jie
                last edited by

                测试了一下,ffmpeg libx256 软件默认(GOP 250, 50帧)压缩比大概150,而该IP相同码率 (QP = 34)压缩比大概50。后来一看只支持 I frame 和P frame, 没有B frame。

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                • B Offline
                  bo @jie
                  last edited by

                  @jie 我们最新的C model 压缩比 相当于 x265 medium 水平,后期准备优化到比medium更好一点。 开源2.0版压缩率没有过多优化

                  X 1 Reply Last reply Reply Quote 0
                  • Y Offline
                    yfor @tang
                    last edited by

                    @tang 在windows上,使用exe测试了416240、19201088分辨率的,都是可以运行的,但是对于480480、12001200的分辨率(这些文件用H264源码测试是没有问题的),没有报任何错误,就直接返回了,生成的文件都为空。

                    参数设置:
                    0_1562031426970_parameters.png

                    测试结果:
                    0_1562031458186_result.png

                    想问下,是那里出了问题,还是有那些参数没有设置了?

                    T B 2 Replies Last reply Reply Quote 0
                    • T Offline
                      tang @yfor
                      last edited by

                      @yfor debug之后发现是熵编码里面的dump_buf设置不够大,一般情况下是足够的,dump_buf是用来导出测试TV的。但是特殊情况下,输出码流比较大,超出dump_buf的大小,无法正常导出文件,所以会出现这个问题。PS:与编码过程无关

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                      • F Offline
                        Fudh @wr115946873
                        last edited by Fudh

                        @wr115946873 您好,想问下问题解决了吗?

                        J 1 Reply Last reply Reply Quote 1
                        • F Offline
                          Fudh @tang
                          last edited by

                          @tang 您好,不知道我的理解是否正确,如果f265软件生成的rec.yuv被认为是正确的,作为check文件,那么这个软件是怎么得到的,HM?

                          T 1 Reply Last reply Reply Quote 0
                          • T Offline
                            tang @Fudh
                            last edited by

                            @Fudh 您好,这个软件是我们实验室自己开发的,谢谢

                            F 1 Reply Last reply Reply Quote -1
                            • F Offline
                              Fudh @tang
                              last edited by

                              @tang 那么请问这个软件是开源的吗, 是否可以提供,谢谢

                              T 1 Reply Last reply Reply Quote 0
                              • T Offline
                                tang @Fudh
                                last edited by

                                @Fudh 暂不开源,抱歉我不能提供。如果只是确认rec.yuv是否正确,直接和.hevc解码得到的YUV对比即可。谢谢

                                F 2 Replies Last reply Reply Quote 0
                                • F Offline
                                  Fudh @tang
                                  last edited by

                                  @tang 好的, 谢谢

                                  1 Reply Last reply Reply Quote 0
                                  • J Offline
                                    jadick
                                    last edited by

                                    Hello.
                                    I always get a "segmentation fault" warning when trying to run the command "./f265 -c f265_encode.cfg" and no data is generated from my .yuv.

                                    Anyone knows what could be the reason to that issue?
                                    I am using sudo and all the files have the necessary permissions.

                                    Thanks.

                                    H 1 Reply Last reply Reply Quote 0
                                    • F Offline
                                      Fudh @tang
                                      last edited by

                                      @tang 想问下Xilinx的板子硬件已经实现了吗 z7020?可以提供下具体的硬件清单吗

                                      T J 2 Replies Last reply Reply Quote 0
                                      • T Offline
                                        tang @Fudh
                                        last edited by

                                        @Fudh 我们用的zcu102,zynq ultrascale+,谢谢

                                        F K X 3 Replies Last reply Reply Quote 0
                                        • F Offline
                                          Fudh @tang
                                          last edited by

                                          This post is deleted!
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                                          • B Offline
                                            Bryant
                                            last edited by

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