[FFmpeg-devel] [PATCH] Revert "avfilter/vf_idet: reduce noisyness if the filter has been auto inserted"

Andreas Rheinhardt andreas.rheinhardt at outlook.com
Sun Oct 10 13:17:38 EEST 2021


Andreas Rheinhardt:
> This reverts commit 723c37d3b7b5555f23bfdfe3e5c3599543c06332.
> Said commit was in preparation for auto-inserting the idet filter.
> This has never happened; even if it did, the code is wrong, because
> it segfaults if the filter instance doesn't have a name (having one
> is not mandatory). Furthermore, it is documented for libavfilter to
> not assign any semantics to the name, which this check violates.
> 
> Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt at outlook.com>
> ---
> IMO the proper way to distinguish auto-inserted filters from
> manually inserted filters is by adding a flag to AVFilterInternal.
> 
>  libavfilter/vf_idet.c | 7 +++----
>  1 file changed, 3 insertions(+), 4 deletions(-)
> 
> diff --git a/libavfilter/vf_idet.c b/libavfilter/vf_idet.c
> index 8e7785fc55..0f3e78c4ec 100644
> --- a/libavfilter/vf_idet.c
> +++ b/libavfilter/vf_idet.c
> @@ -335,20 +335,19 @@ static int request_frame(AVFilterLink *link)
>  static av_cold void uninit(AVFilterContext *ctx)
>  {
>      IDETContext *idet = ctx->priv;
> -    int level = strncmp(ctx->name, "auto-inserted", 13) ? AV_LOG_INFO : AV_LOG_DEBUG;
>  
> -    av_log(ctx, level, "Repeated Fields: Neither:%6"PRId64" Top:%6"PRId64" Bottom:%6"PRId64"\n",
> +    av_log(ctx, AV_LOG_INFO, "Repeated Fields: Neither:%6"PRId64" Top:%6"PRId64" Bottom:%6"PRId64"\n",
>             idet->total_repeats[REPEAT_NONE],
>             idet->total_repeats[REPEAT_TOP],
>             idet->total_repeats[REPEAT_BOTTOM]
>          );
> -    av_log(ctx, level, "Single frame detection: TFF:%6"PRId64" BFF:%6"PRId64" Progressive:%6"PRId64" Undetermined:%6"PRId64"\n",
> +    av_log(ctx, AV_LOG_INFO, "Single frame detection: TFF:%6"PRId64" BFF:%6"PRId64" Progressive:%6"PRId64" Undetermined:%6"PRId64"\n",
>             idet->total_prestat[TFF],
>             idet->total_prestat[BFF],
>             idet->total_prestat[PROGRESSIVE],
>             idet->total_prestat[UNDETERMINED]
>          );
> -    av_log(ctx, level, "Multi frame detection: TFF:%6"PRId64" BFF:%6"PRId64" Progressive:%6"PRId64" Undetermined:%6"PRId64"\n",
> +    av_log(ctx, AV_LOG_INFO, "Multi frame detection: TFF:%6"PRId64" BFF:%6"PRId64" Progressive:%6"PRId64" Undetermined:%6"PRId64"\n",
>             idet->total_poststat[TFF],
>             idet->total_poststat[BFF],
>             idet->total_poststat[PROGRESSIVE],
> 

Will apply this tonight unless there are objections.

- Andreas


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