diff options
Diffstat (limited to 'libavfilter/vf_overlay.c')
| -rw-r--r-- | libavfilter/vf_overlay.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/libavfilter/vf_overlay.c b/libavfilter/vf_overlay.c index 04cacad635..8227d35755 100644 --- a/libavfilter/vf_overlay.c +++ b/libavfilter/vf_overlay.c @@ -510,6 +510,18 @@ static void null_draw_slice(AVFilterLink *inlink, int y, int h, int slice_dir) { static void null_end_frame(AVFilterLink *inlink) { } +static int poll_frame(AVFilterLink *link) +{ + AVFilterContext *s = link->src; + OverlayContext *over = s->priv; + int ret = avfilter_poll_frame(s->inputs[OVERLAY]); + + if (ret == AVERROR_EOF) + ret = !!over->overpicref; + + return ret && avfilter_poll_frame(s->inputs[MAIN]); +} + AVFilter avfilter_vf_overlay = { .name = "overlay", .description = NULL_IF_CONFIG_SMALL("Overlay a video source on top of the input."), @@ -541,6 +553,7 @@ AVFilter avfilter_vf_overlay = { { .name = NULL}}, .outputs = (const AVFilterPad[]) {{ .name = "default", .type = AVMEDIA_TYPE_VIDEO, - .config_props = config_output, }, + .config_props = config_output, + .poll_frame = poll_frame }, { .name = NULL}}, }; |