Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel
 help / color / mirror / Atom feed
* [FFmpeg-devel] [PATCH] avfilter/vf_libplacebo: don't explode on zero FPS information
@ 2025-03-17 14:24 Niklas Haas
  0 siblings, 0 replies; only message in thread
From: Niklas Haas @ 2025-03-17 14:24 UTC (permalink / raw)
  To: ffmpeg-devel; +Cc: Niklas Haas

From: Niklas Haas <git@haasn.dev>

While technically not specifiad as valid by the AVFilterLink documentation,
it is currently possible to get an FPS of zero from various sources inside
libavfilter (notably vf_buffersrc).

Avoid a division by zero and resulting infinity when this happens.
---
 libavfilter/vf_libplacebo.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavfilter/vf_libplacebo.c b/libavfilter/vf_libplacebo.c
index 0c245cda7f..86e1f43dea 100644
--- a/libavfilter/vf_libplacebo.c
+++ b/libavfilter/vf_libplacebo.c
@@ -1073,7 +1073,7 @@ static int libplacebo_activate(AVFilterContext *ctx)
             in->qstatus = pl_queue_update(in->queue, &in->mix, pl_queue_params(
                 .pts            = out_pts * av_q2d(outlink->time_base),
                 .radius         = pl_frame_mix_radius(&s->opts->params),
-                .vsync_duration = av_q2d(av_inv_q(l->frame_rate)),
+                .vsync_duration = l->frame_rate.num ? av_q2d(av_inv_q(l->frame_rate)) : 0,
             ));
 
             switch (in->qstatus) {
-- 
2.48.1

_______________________________________________
ffmpeg-devel mailing list
ffmpeg-devel@ffmpeg.org
https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

To unsubscribe, visit link above, or email
ffmpeg-devel-request@ffmpeg.org with subject "unsubscribe".

^ permalink raw reply	[flat|nested] only message in thread

only message in thread, other threads:[~2025-03-17 14:24 UTC | newest]

Thread overview: (only message) (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2025-03-17 14:24 [FFmpeg-devel] [PATCH] avfilter/vf_libplacebo: don't explode on zero FPS information Niklas Haas

Git Inbox Mirror of the ffmpeg-devel mailing list - see https://ffmpeg.org/mailman/listinfo/ffmpeg-devel

This inbox may be cloned and mirrored by anyone:

	git clone --mirror https://master.gitmailbox.com/ffmpegdev/0 ffmpegdev/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 ffmpegdev ffmpegdev/ https://master.gitmailbox.com/ffmpegdev \
		ffmpegdev@gitmailbox.com
	public-inbox-index ffmpegdev

Example config snippet for mirrors.


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git