Deinterlace the input video ("yadif" means "yet another deinterlacing
filter").
-It accepts the optional parameters: @var{mode}:@var{parity}.
+It accepts the optional parameters: @var{mode}:@var{parity}:@var{auto}.
@var{mode} specifies the interlacing mode to adopt, accepts one of the
following values:
If interlacing is unknown or decoder does not export this information,
top field first will be assumed.
+@var{auto] specifies if deinterlacer should trust the interlaced flag
+and only deinterlace frames marked as interlaced
+
+@table @option
+@item 0
+deinterlace all frames
+@item 1
+only deinterlace frames marked as interlaced
+@end table
+
+Default value is 0.
+
@c man end VIDEO FILTERS
@chapter Video Sources
int frame_pending;
+ /**
+ * 0: deinterlace all frames
+ * 1: only deinterlace frames marked as interlaced
+ */
+ int auto_enable;
+
AVFilterBufferRef *cur;
AVFilterBufferRef *next;
AVFilterBufferRef *prev;
if (!yadif->cur)
return;
+ if (yadif->auto_enable && !yadif->cur->video->interlaced) {
+ yadif->out = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
+ avfilter_unref_buffer(yadif->prev);
+ yadif->prev = NULL;
+ avfilter_start_frame(ctx->outputs[0], yadif->out);
+ return;
+ }
+
if (!yadif->prev)
yadif->prev = avfilter_ref_buffer(yadif->cur, AV_PERM_READ);
if (!yadif->out)
return;
+ if (yadif->auto_enable && !yadif->cur->video->interlaced) {
+ avfilter_draw_slice(ctx->outputs[0], 0, link->h, 1);
+ avfilter_end_frame(ctx->outputs[0]);
+ return;
+ }
+
return_frame(ctx, 0);
}
}
assert(yadif->next || !val);
+ if (yadif->auto_enable && yadif->next && !yadif->next->video->interlaced)
+ return val;
+
return val * ((yadif->mode&1)+1);
}
yadif->mode = 0;
yadif->parity = -1;
+ yadif->auto_enable = 0;
yadif->csp = NULL;
- if (args) sscanf(args, "%d:%d", &yadif->mode, &yadif->parity);
+ if (args) sscanf(args, "%d:%d:%d", &yadif->mode, &yadif->parity, &yadif->auto_enable);
yadif->filter_line = filter_line_c;
if (HAVE_SSSE3 && cpu_flags & AV_CPU_FLAG_SSSE3)
else if (HAVE_MMX && cpu_flags & AV_CPU_FLAG_MMX)
yadif->filter_line = ff_yadif_filter_line_mmx;
- av_log(ctx, AV_LOG_INFO, "mode:%d parity:%d\n", yadif->mode, yadif->parity);
+ av_log(ctx, AV_LOG_INFO, "mode:%d parity:%d auto_enable:%d\n", yadif->mode, yadif->parity, yadif->auto_enable);
return 0;
}