fftools/ffmpeg_filter: ensure ifp is set before dereferencing it

Fixes segfaults since cbbc927a67f142a02bfc5d047c03587599ee5b55.

James Almer committed 1 year ago

Commit fee5b0a1 parent 5dcf5661 file · +2 −2Browse files

Unified · Split

fftools/ffmpeg_filter.c+2−2

@@ -3087,7 +3087,7 @@ static int filter_thread(void *arg) · 3086 unmodified lines
3087	3087
3088	3088	while (1) {
3089	3089	InputFilter *ifilter;
3090		− InputFilterPriv *ifp;
	3090	+ InputFilterPriv *ifp = NULL;
3091	3091	enum FrameOpaque o;
3092	3092	unsigned input_idx = fgt.next_in;
3093	3093
@@ -3149,7 +3149,7 @@ read_frames: · 55 unmodified lines
3149	3149	ret = read_frames(fg, &fgt, fgt.frame);
3150	3150	if (ret == AVERROR_EOF) {
3151	3151	av_log(fg, AV_LOG_VERBOSE, "All consumers returned EOF\n");
3152		− if (ifp->opts.flags & IFILTER_FLAG_DROPCHANGED)
	3152	+ if (ifp && ifp->opts.flags & IFILTER_FLAG_DROPCHANGED)
3153	3153	av_log(fg, AV_LOG_INFO, "Total changed input frames dropped : %"PRId64"\n", ifp->nb_dropped);
3154	3154	break;
3155	3155	} else if (ret < 0) {