[FFmpeg-devel] [PATCH] avcodec/mips: Fix MMI macro replaces in HEVC Decoder

[Hao Chen]

There are still some bugs unresolved in HEVC decoding. The 
checkasm-hevc-pel test failed. It's suggested to repair together.

在 2022/8/18 下午3:15, 戚铁铮 写道:
> The latest commit of Loongson MMI macro replaces were incorrect.
> It makes a mass of green tints on HEVC videos when playing. I've
> compared it with the older MMI implementation, and found out that
> several lines have been replaced by wrong macros.
>
>
> Signed-off-by: Qi Tiezheng <qitiezheng at 360.cn>
> ---
>   libavcodec/mips/hevcdsp_mmi.c | 16 ++++++++--------
>   1 file changed, 8 insertions(+), 8 deletions(-)
>
>
> diff --git a/libavcodec/mips/hevcdsp_mmi.c b/libavcodec/mips/hevcdsp_mmi.c
> index 0ea88a7c08..2ded3fc0bb 100644
> --- a/libavcodec/mips/hevcdsp_mmi.c
> +++ b/libavcodec/mips/hevcdsp_mmi.c
> @@ -80,7 +80,7 @@ void ff_hevc_put_hevc_qpel_h##w##_8_mmi(int16_t *dst, const uint8_t *_src, \
>           "paddh        %[ftmp3],      %[ftmp3],      %[ftmp4]    \n\t"    \
>           "paddh        %[ftmp5],      %[ftmp5],      %[ftmp6]    \n\t"    \
>           "paddh        %[ftmp3],      %[ftmp3],      %[ftmp5]    \n\t"    \
> -        MMI_ULDC1(%[ftmp3], %[dst], 0x00)                                \
> +        MMI_USDC1(%[ftmp3], %[dst], 0x00)                                \
>                                                                            \
>           "daddi        %[x],          %[x],         -0x01        \n\t"    \
>           PTR_ADDIU    "%[src],        %[src],        0x04        \n\t"    \
> @@ -178,7 +178,7 @@ void ff_hevc_put_hevc_qpel_hv##w##_8_mmi(int16_t *dst, const uint8_t *_src,\
>           "paddh        %[ftmp3],      %[ftmp3],      %[ftmp4]    \n\t"    \
>           "paddh        %[ftmp5],      %[ftmp5],      %[ftmp6]    \n\t"    \
>           "paddh        %[ftmp3],      %[ftmp3],      %[ftmp5]    \n\t"    \
> -        MMI_ULDC1(%[ftmp3], %[tmp], 0x00)                                \
> +        MMI_USDC1(%[ftmp3], %[tmp], 0x00)                                \
>                                                                            \
>           "daddi        %[x],          %[x],         -0x01        \n\t"    \
>           PTR_ADDIU    "%[src],        %[src],        0x04        \n\t"    \
> @@ -690,10 +690,10 @@ void ff_hevc_put_hevc_epel_bi_hv##w##_8_mmi(uint8_t *_dst,              \
>                                                                           \
>           "1:                                                     \n\t"   \
>           "2:                                                     \n\t"   \
> -        MMI_ULDC1(%[ftmp3], %[src], 0x00)                               \
> -        MMI_ULDC1(%[ftmp4], %[src], 0x01)                               \
> -        MMI_ULDC1(%[ftmp5], %[src], 0x02)                               \
> -        MMI_ULDC1(%[ftmp6], %[src], 0x03)                               \
> +        MMI_ULWC1(%[ftmp2], %[src], 0x00)                               \
> +        MMI_ULWC1(%[ftmp3], %[src], 0x01)                               \
> +        MMI_ULWC1(%[ftmp4], %[src], 0x02)                               \
> +        MMI_ULWC1(%[ftmp5], %[src], 0x03)                               \
>           "punpcklbh    %[ftmp2],      %[ftmp2],      %[ftmp0]    \n\t"   \
>           "pmullh       %[ftmp2],      %[ftmp2],      %[ftmp1]    \n\t"   \
>           "punpcklbh    %[ftmp3],      %[ftmp3],      %[ftmp0]    \n\t"   \
> @@ -707,7 +707,7 @@ void ff_hevc_put_hevc_epel_bi_hv##w##_8_mmi(uint8_t *_dst,              \
>           "paddh        %[ftmp2],      %[ftmp2],      %[ftmp3]    \n\t"   \
>           "paddh        %[ftmp4],      %[ftmp4],      %[ftmp5]    \n\t"   \
>           "paddh        %[ftmp2],      %[ftmp2],      %[ftmp4]    \n\t"   \
> -        MMI_ULDC1(%[ftmp2], %[tmp], 0x00)                               \
> +        MMI_USDC1(%[ftmp2], %[tmp], 0x00)                               \
>                                                                           \
>           "daddi        %[x],          %[x],         -0x01        \n\t"   \
>           PTR_ADDIU    "%[src],        %[src],        0x04        \n\t"   \
> @@ -773,7 +773,7 @@ void ff_hevc_put_hevc_epel_bi_hv##w##_8_mmi(uint8_t *_dst,              \
>           "paddw        %[ftmp5],      %[ftmp5],      %[ftmp6]    \n\t"   \
>           "psraw        %[ftmp5],      %[ftmp5],      %[ftmp0]    \n\t"   \
>           "packsswh     %[ftmp3],      %[ftmp3],      %[ftmp5]    \n\t"   \
> -        MMI_ULDC1(%[ftmp4], %[tmp], 0x02)                               \
> +        MMI_ULDC1(%[ftmp4], %[tmp], 0x00)                               \
>           "li           %[rtmp0],      0x10                       \n\t"   \
>           "dmtc1        %[rtmp0],      %[ftmp8]                   \n\t"   \
>           "punpcklhw    %[ftmp5],      %[ftmp2],      %[ftmp3]    \n\t"   \
> --
> 2.25.1
>
>
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