Ping. > On Sep 16, 2020, at 1:09 PM, quinkbl...@foxmail.com wrote: > > From: Zhao Zhili <quinkbl...@foxmail.com> > > 1. Remove the modification of x, y, w and h parameters since they > are reset by filter_frame. > 2. config_input leads to error out when logo area is outside of the > frame, while filter_frame fix the parameters automatically. Make > config_input don't return error to keep the logic consistent. > --- > libavfilter/vf_delogo.c | 39 +++++++++++++++------------------------ > 1 file changed, 15 insertions(+), 24 deletions(-) > > diff --git a/libavfilter/vf_delogo.c b/libavfilter/vf_delogo.c > index 6069c30163..39f06512fa 100644 > --- a/libavfilter/vf_delogo.c > +++ b/libavfilter/vf_delogo.c > @@ -271,11 +271,6 @@ static av_cold int init(AVFilterContext *ctx) > av_log(ctx, AV_LOG_VERBOSE, "x:%d y:%d, w:%d h:%d band:%d show:%d\n", > s->x, s->y, s->w, s->h, s->band, s->show); > > - s->w += s->band*2; > - s->h += s->band*2; > - s->x -= s->band; > - s->y -= s->band; > - > return 0; > } > > @@ -284,10 +279,21 @@ static int config_input(AVFilterLink *inlink) > DelogoContext *s = inlink->dst->priv; > > /* Check whether the logo area fits in the frame */ > - if (s->x + (s->band - 1) < 0 || s->x + s->w - (s->band*2 - 2) > > inlink->w || > - s->y + (s->band - 1) < 0 || s->y + s->h - (s->band*2 - 2) > > inlink->h) { > - av_log(s, AV_LOG_ERROR, "Logo area is outside of the frame.\n"); > - return AVERROR(EINVAL); > + if (s->x + (s->band - 1) <= 0 || s->x + s->w - (s->band*2 - 2) > > inlink->w || > + s->y + (s->band - 1) <= 0 || s->y + s->h - (s->band*2 - 2) > > inlink->h) { > + av_log(s, AV_LOG_WARNING, "Logo area is outside of the frame," > + " logo(x:%d y:%d w:%d h:%d), frame(%dx%d)," > + " auto set the area inside of the frame." > + " Note: x and y must be 1 at least.\n", > + s->x, s->y, s->w, s->h, inlink->w, inlink->h); > + if (s->x + (s->band - 1) <= 0) > + s->x = 1 + s->band; > + if (s->y + (s->band - 1) <= 0) > + s->y = 1 + s->band; > + if (s->x + s->w - (s->band*2 - 2) > inlink->w) > + s->w = inlink->w - s->x - (s->band*2 - 2); > + if (s->y + s->h - (s->band*2 - 2) > inlink->h) > + s->h = inlink->h - s->y - (s->band*2 - 2); > } > > return 0; > @@ -313,21 +319,6 @@ static int filter_frame(AVFilterLink *inlink, AVFrame > *in) > s->w = av_expr_eval(s->w_pexpr, s->var_values, s); > s->h = av_expr_eval(s->h_pexpr, s->var_values, s); > > - if (s->x + (s->band - 1) <= 0 || s->x + s->w - (s->band*2 - 2) > > inlink->w || > - s->y + (s->band - 1) <= 0 || s->y + s->h - (s->band*2 - 2) > > inlink->h) { > - av_log(s, AV_LOG_WARNING, "Logo area is outside of the frame," > - " auto set the area inside of the frame\n"); > - } > - > - if (s->x + (s->band - 1) <= 0) > - s->x = 1 + s->band; > - if (s->y + (s->band - 1) <= 0) > - s->y = 1 + s->band; > - if (s->x + s->w - (s->band*2 - 2) > inlink->w) > - s->w = inlink->w - s->x - (s->band*2 - 2); > - if (s->y + s->h - (s->band*2 - 2) > inlink->h) > - s->h = inlink->h - s->y - (s->band*2 - 2); > - > ret = config_input(inlink); > if (ret < 0) { > av_frame_free(&in); > -- > 2.17.1 > >
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