showwaves: fix first sample of frame test.

Avoids a huge memleak when n != 1.
13 years ago · 6d627eae3c
parent bd9939f495
commit 6d627eae3c
1 changed files with 1 additions and 1 deletions
--- a/libavfilter/avf_showwaves.c
+++ b/libavfilter/avf_showwaves.c
@ -196,7 +196,7 @@ static void filter_samples(AVFilterLink *inlink, AVFilterBufferRef *insamples)

    /* draw data in the buffer */
    for (i = 0; i < nb_samples; i++) {
-        if (showwaves->buf_idx == 0) {
+        if (showwaves->buf_idx == 0 && showwaves->sample_count_mod == 0) {
            showwaves->outpicref = outpicref =
                ff_get_video_buffer(outlink, AV_PERM_WRITE|AV_PERM_ALIGN,
                                    outlink->w, outlink->h);