ffmpeg | branch: master | Anton Khirnov <an...@khirnov.net> | Tue Feb 8 19:13:45 2022 +0100| [e9acff8a013bdd6d459116ceb35f8a53b60ff521] | committer: Anton Khirnov
lavu/fifo: fix a corner case in av_fifo_grow2() When the fifo is grown by exactly the current write offset, it would end up with offset_w = nb_elems. If av_fifo_write_from_cb() is called in such a state, the user callback would get callled with *nb_elems=0, which will then cause the write to return without writing anything. > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e9acff8a013bdd6d459116ceb35f8a53b60ff521 --- libavutil/fifo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavutil/fifo.c b/libavutil/fifo.c index 02e0ec3f0d..09c984143f 100644 --- a/libavutil/fifo.c +++ b/libavutil/fifo.c @@ -115,7 +115,7 @@ int av_fifo_grow2(AVFifo *f, size_t inc) (f->offset_w - copy) * f->elem_size); f->offset_w -= copy; } else - f->offset_w = f->nb_elems + copy; + f->offset_w = copy == inc ? 0 : f->nb_elems + copy; } f->nb_elems += inc; _______________________________________________ ffmpeg-cvslog mailing list ffmpeg-cvslog@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog To unsubscribe, visit link above, or email ffmpeg-cvslog-requ...@ffmpeg.org with subject "unsubscribe".
