From 482d51884c06a15a2712eb7629fbdd21720f61e9 Mon Sep 17 00:00:00 2001 From: Oneric Date: Mon, 14 Mar 2022 20:06:39 +0100 Subject: [PATCH] avfilter/vf_subtitles: pass storage size to libass Due to a quirk of the ASS format some tags depend on the exact storage resolution of the video, so tell libass via ass_set_storage_size. Reviewed-by: Soft Works Signed-off-by: James Almer --- libavfilter/vf_subtitles.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c index 3fc4eeb63d..aa5d17b8bc 100644 --- a/libavfilter/vf_subtitles.c +++ b/libavfilter/vf_subtitles.c @@ -146,9 +146,13 @@ static int config_input(AVFilterLink *inlink) ff_draw_init(&ass->draw, inlink->format, ass->alpha ? FF_DRAW_PROCESS_ALPHA : 0); ass_set_frame_size (ass->renderer, inlink->w, inlink->h); - if (ass->original_w && ass->original_h) + if (ass->original_w && ass->original_h) { ass_set_pixel_aspect(ass->renderer, (double)inlink->w / inlink->h / ((double)ass->original_w / ass->original_h)); + ass_set_storage_size(ass->renderer, ass->original_w, ass->original_h); + } else + ass_set_storage_size(ass->renderer, inlink->w, inlink->h); + if (ass->shaping != -1) ass_set_shaper(ass->renderer, ass->shaping);