avfilter: Constify all AVFilters

[ffmpeg] / libavfilter / avf_concat.c

diff --git a/libavfilter/avf_concat.c b/libavfilter/avf_concat.c
index 5608ed9ac61525569c349f3b2cd7919c266755c9..f5cd8c11a76d2299963265c44a56da686c317d98 100644 (file)
--- a/libavfilter/avf_concat.c
+++ b/libavfilter/avf_concat.c
@@ -251,6 +251,10 @@ static int send_silence(AVFilterContext *ctx, unsigned in_no, unsigned out_no,
 
     if (!rate_tb.den)
         return AVERROR_BUG;
+    if (cat->in[in_no].pts < INT64_MIN + seg_delta)
+        return AVERROR_INVALIDDATA;
+    if (seg_delta < cat->in[in_no].pts)
+        return AVERROR_INVALIDDATA;
     nb_samples = av_rescale_q(seg_delta - cat->in[in_no].pts,
                               outlink->time_base, rate_tb);
     frame_nb_samples = FFMAX(9600, rate_tb.den / 5); /* arbitrary */
@@ -443,7 +447,7 @@ static int process_command(AVFilterContext *ctx, const char *cmd, const char *ar
     return ret;
 }
 
-AVFilter ff_avf_concat = {
+const AVFilter ff_avf_concat = {
     .name          = "concat",
     .description   = NULL_IF_CONFIG_SMALL("Concatenate audio and video streams."),
     .init          = init,