From 585ac1ff5b3009353d3dc0e88068e0d91b4470a4 Mon Sep 17 00:00:00 2001 From: Limin Wang Date: Wed, 25 Mar 2020 18:45:48 +0800 Subject: avfilter/vf_showinfo: limit the max number of timecode Signed-off-by: Limin Wang Signed-off-by: Michael Niedermayer --- libavfilter/vf_showinfo.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'libavfilter') diff --git a/libavfilter/vf_showinfo.c b/libavfilter/vf_showinfo.c index 71534d1fa8..b0b0051357 100644 --- a/libavfilter/vf_showinfo.c +++ b/libavfilter/vf_showinfo.c @@ -318,14 +318,15 @@ static int filter_frame(AVFilterLink *inlink, AVFrame *frame) break; case AV_FRAME_DATA_S12M_TIMECODE: { uint32_t *tc = (uint32_t*)sd->data; + int m = FFMIN(tc[0],3); if (sd->size != 16) { av_log(ctx, AV_LOG_ERROR, "invalid data"); break; } - for (int j = 1; j <= tc[0]; j++) { + for (int j = 1; j <= m; j++) { char tcbuf[AV_TIMECODE_STR_SIZE]; av_timecode_make_smpte_tc_string(tcbuf, tc[j], 0); - av_log(ctx, AV_LOG_INFO, "timecode - %s%s", tcbuf, j != tc[0] ? ", " : ""); + av_log(ctx, AV_LOG_INFO, "timecode - %s%s", tcbuf, j != m ? ", " : ""); } break; } -- cgit v1.2.3