[FFmpeg-devel] [PATCH 1/2] lavc/mpegvideo_enc: mark default_mv_penalty as const

[Andreas Rheinhardt]

Anton Khirnov:
> Nothing is ever written into it.
> ---
>  libavcodec/mpegvideo_enc.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/libavcodec/mpegvideo_enc.c b/libavcodec/mpegvideo_enc.c
> index 34dcf8c313..a27c80ca37 100644
> --- a/libavcodec/mpegvideo_enc.c
> +++ b/libavcodec/mpegvideo_enc.c
> @@ -82,7 +82,7 @@ static int sse_mb(MpegEncContext *s);
>  static void denoise_dct_c(MpegEncContext *s, int16_t *block);
>  static int dct_quantize_trellis_c(MpegEncContext *s, int16_t *block, int n, int qscale, int *overflow);
>  
> -static uint8_t default_mv_penalty[MAX_FCODE + 1][MAX_DMV * 2 + 1];
> +static const uint8_t default_mv_penalty[MAX_FCODE + 1][MAX_DMV * 2 + 1];
>  static uint8_t default_fcode_tab[MAX_MV * 2 + 1];
>  
>  const AVOption ff_mpv_generic_options[] = {
> 
If you do this, the array will be present in the binary and will
actually occupy memory if it is used; currently, all the pages can be
mapped to the zero page.

- Andreas