Am So., 11. Apr. 2021 um 18:50 Uhr schrieb James Almer <jamr...@gmail.com>: > > On 4/11/2021 1:30 PM, Carl Eugen Hoyos wrote: > > Am So., 11. Apr. 2021 um 04:13 Uhr schrieb James Almer <jamr...@gmail.com>: > >> > >> The libwebp_animencoder returns a single packet with the entire animated > >> stream, as that's what the external library produces. As such, only ensure > >> the > >> stream was produced by said encoder (or propagated by a demuxer, once > >> support > >> is added) when attempting to write the requested loop value. > >> > >> Fixes ticket #9179. > >> > >> Signed-off-by: James Almer <jamr...@gmail.com> > >> --- > >> libavformat/webpenc.c | 2 +- > >> 1 file changed, 1 insertion(+), 1 deletion(-) > >> > >> diff --git a/libavformat/webpenc.c b/libavformat/webpenc.c > >> index ed8325c02d..ca4ffc4e2d 100644 > >> --- a/libavformat/webpenc.c > >> +++ b/libavformat/webpenc.c > >> @@ -172,7 +172,7 @@ static int webp_write_trailer(AVFormatContext *s) > >> WebpContext *w = s->priv_data; > >> > >> if (w->using_webp_anim_encoder) { > >> - if ((w->frame_count > 1) && w->loop) { // Write loop count. > >> + if (w->loop) { // Write loop count. > >> avio_seek(s->pb, 42, SEEK_SET); > >> avio_wl16(s->pb, w->loop); > > > > Sorry for not understanding this: > > Why is the seek necessary at all? > > If we write the loop value in webp_write_trailer() then there's no other > way. But if we instead attempt to write it in webp_write_packet() then a > seek wouldn't be needed, no.
If I don't miss anything, the value should not be written in webp_write_trailer() then. Carl Eugen _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".