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    H265 ENCODER RTL V2.0仿真教程

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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。

      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

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                      • 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
                                          • B Offline
                                            btlmx @yfor
                                            last edited by

                                            @yfor 1920x1088有RTL仿真过可以吗?

                                            1 Reply Last reply Reply Quote 0
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