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    H265 ENCODER RTL V2.0仿真教程

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    • 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
      1 Reply Last reply Reply Quote 0
      • 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。

        B 1 Reply Last reply Reply Quote 0
        • 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

              1 Reply Last reply Reply Quote 0
              • 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!
                                  1 Reply Last reply Reply Quote 0
                                  • B Offline
                                    Bryant
                                    last edited by

                                    This post is deleted!
                                    1 Reply Last reply Reply Quote 0
                                    • Y Offline
                                      yinbanghui1982
                                      last edited by

                                      请问cabac_bina.v中的两处for循环,都以i作为循环变量,是不是有问题?

                                      // --- Specail --- //

                                      reg ctx_spflag[0:3];
                                      integer i;

                                      always @ (*)
                                      begin
                                      for (i=0; i<4; i=i+1)
                                      begin
                                      case(ctx[i])
                                      9'd8:

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

                                        @tang 您是否使用Xilinx板(尤其是Zynq ultrascale + zcu102板)成功实现了代码?

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

                                          @kemberly 我们成功实现了,谢谢

                                          1 Reply Last reply Reply Quote 0
                                          • G Offline
                                            Giljohn
                                            last edited by Giljohn

                                            @tang, 可以使用Windows模擬嗎

                                            1 Reply Last reply Reply Quote 0
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