ffmpeg | branch: master | Michael Niedermayer <mich...@niedermayer.cc> | Thu Jul 11 21:05:20 2024 +0200| [41745e550a0274571bd9fbfb12b36ff1743d4e9c] | committer: Michael Niedermayer
avformat/tty: Check avio_size() Fixes: CID1220824 Overflowed constant Sponsored-by: Sovereign Tech Fund Signed-off-by: Michael Niedermayer <mich...@niedermayer.cc> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=41745e550a0274571bd9fbfb12b36ff1743d4e9c --- libavformat/tty.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/libavformat/tty.c b/libavformat/tty.c index 95b7200527..c3956ccf34 100644 --- a/libavformat/tty.c +++ b/libavformat/tty.c @@ -123,13 +123,16 @@ static int read_header(AVFormatContext *avctx) s->chars_per_frame = FFMAX(av_q2d(st->time_base)*s->chars_per_frame, 1); if (avctx->pb->seekable & AVIO_SEEKABLE_NORMAL) { - s->fsize = avio_size(avctx->pb); - st->duration = (s->fsize + s->chars_per_frame - 1) / s->chars_per_frame; + int64_t fsize = avio_size(avctx->pb); + if (fsize > 0) { + s->fsize = fsize; + st->duration = (s->fsize + s->chars_per_frame - 1) / s->chars_per_frame; - if (ff_sauce_read(avctx, &s->fsize, 0, 0) < 0) - efi_read(avctx, s->fsize - 51); + if (ff_sauce_read(avctx, &s->fsize, 0, 0) < 0) + efi_read(avctx, s->fsize - 51); - avio_seek(avctx->pb, 0, SEEK_SET); + avio_seek(avctx->pb, 0, SEEK_SET); + } } fail: _______________________________________________ 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".
