97     double var_values[VARS_NB];  member
155 static int output_single_frame(AVFilterContext *ctx, AVFrame *in, double *var_values, int i,  in output_single_frame()  argument
167     var_values[VAR_PX]    = s->x;  in output_single_frame()
168     var_values[VAR_PY]    = s->y;  in output_single_frame()
169     var_values[VAR_PZOOM] = s->prev_zoom;  in output_single_frame()
170     var_values[VAR_PDURATION] = s->prev_nb_frames;  in output_single_frame()
171     var_values[VAR_IN_TIME] = var_values[VAR_IT]  = in->pts == AV_NOPTS_VALUE ?  in output_single_frame()
173     var_values[VAR_OUT_TIME] = pts * av_q2d(outlink->time_base);  in output_single_frame()
174     var_values[VAR_TIME] = var_values[VAR_OT] = var_values[VAR_OUT_TIME];  in output_single_frame()
175     var_values[VAR_FRAME] = i;  in output_single_frame()
176     var_values[VAR_ON] = outlink->frame_count_in;  in output_single_frame()
178     *zoom = av_expr_eval(s->zoom_expr, var_values, NULL);  in output_single_frame()
181     var_values[VAR_ZOOM] = *zoom;  in output_single_frame()
185     *dx = av_expr_eval(s->x_expr, var_values, NULL);  in output_single_frame()
188     var_values[VAR_X] = *dx;  in output_single_frame()
191     *dy = av_expr_eval(s->y_expr, var_values, NULL);  in output_single_frame()
194     var_values[VAR_Y] = *dy;  in output_single_frame()
273         ret = output_single_frame(ctx, s->in, s->var_values, s->current_frame,  in activate()
283         s->var_values[VAR_IN_W]  = s->var_values[VAR_IW] = s->in->width;  in activate()
284         s->var_values[VAR_IN_H]  = s->var_values[VAR_IH] = s->in->height;  in activate()
285         s->var_values[VAR_OUT_W] = s->var_values[VAR_OW] = s->w;  in activate()
286         s->var_values[VAR_OUT_H] = s->var_values[VAR_OH] = s->h;  in activate()
287         s->var_values[VAR_IN]    = inlink->frame_count_out - 1;  in activate()
288         s->var_values[VAR_ON]    = outlink->frame_count_in;  in activate()
289         s->var_values[VAR_PX]    = s->x;  in activate()
290         s->var_values[VAR_PY]    = s->y;  in activate()
291         s->var_values[VAR_X]     = 0;  in activate()
292         s->var_values[VAR_Y]     = 0;  in activate()
293         s->var_values[VAR_PZOOM] = s->prev_zoom;  in activate()
294         s->var_values[VAR_ZOOM]  = 1;  in activate()
295         s->var_values[VAR_PDURATION] = s->prev_nb_frames;  in activate()
296         s->var_values[VAR_A]     = (double) s->in->width / s->in->height;  in activate()
297         s->var_values[VAR_SAR]   = inlink->sample_aspect_ratio.num ?  in activate()
299         s->var_values[VAR_DAR]   = s->var_values[VAR_A] * s->var_values[VAR_SAR];  in activate()
300         s->var_values[VAR_HSUB]  = 1 << s->desc->log2_chroma_w;  in activate()
301         s->var_values[VAR_VSUB]  = 1 << s->desc->log2_chroma_h;  in activate()
304                                           var_names, s->var_values,  in activate()
310         s->var_values[VAR_DURATION] = s->nb_frames = nb_frames;  in activate()
312         ret = output_single_frame(ctx, s->in, s->var_values, s->current_frame,  in activate()