avtools: reinitialise filter chain when input video stream changes dimensions

Signed-off-by: Anton Khirnov <anton@khirnov.net>

1 files changed, 13 insertions, 0 deletions

diff --git a/avconv.c b/avconv.c
index 877079c887..18c5f07380 100644
--- a/avconv.c
+++ b/avconv.c
@@ -1211,7 +1211,20 @@ static void do_video_out(AVFormatContext *s,
         sws_scale(ost->img_resample_ctx, formatted_picture->data, formatted_picture->linesize,
               0, ost->resample_height, final_picture->data, final_picture->linesize);
     }
+#else
+    if (resample_changed) {
+        avfilter_graph_free(&ost->graph);
+        if (configure_video_filters(ist, ost)) {
+            fprintf(stderr, "Error reinitialising filters!\n");
+            exit_program(1);
+        }
+    }
 #endif
+    if (resample_changed) {
+        ost->resample_width   = dec->width;
+        ost->resample_height  = dec->height;
+        ost->resample_pix_fmt = dec->pix_fmt;
+    }
 
     /* duplicates frame if needed */
     for(i=0;i<nb_frames;i++) {