X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fgifdec.c;h=1ac47fee5043ea1cfa9ec17d2e5004a2715c7c22;hb=c10caea2144fefc5e3e80807f301b3bf7a9b2753;hp=bb4c6ec6e6465b3c9cee296569c6d5c78b97d10d;hpb=b3e5d59537cbd375ca508fe2dfca30bcd2d201d3;p=ffmpeg

diff --git a/libavformat/gifdec.c b/libavformat/gifdec.c
index bb4c6ec6e64..1ac47fee504 100644
--- a/libavformat/gifdec.c
+++ b/libavformat/gifdec.c
@@ -52,6 +52,9 @@ typedef struct GIFDemuxContext {
     int total_iter;
     int iter_count;
     int ignore_loop;
+
+    int nb_frames;
+    int last_duration;
 } GIFDemuxContext;
 
 /**
@@ -279,6 +282,9 @@ parse_keyframe:
             pkt->stream_index = 0;
             pkt->duration = gdc->delay;
 
+            gdc->nb_frames ++;
+            gdc->last_duration = pkt->duration;
+
             /* Graphic Control Extension's scope is single frame.
              * Remove its influence. */
             gdc->delay = gdc->default_delay;
@@ -299,6 +305,9 @@ resync:
     }
 
     if ((ret >= 0 && !frame_parsed) || ret == AVERROR_EOF) {
+        if (gdc->nb_frames == 1) {
+            s->streams[0]->r_frame_rate = (AVRational) {100, gdc->last_duration};
+        }
         /* This might happen when there is no image block
          * between extension blocks and GIF_TRAILER or EOF */
         if (!gdc->ignore_loop && (block_label == GIF_TRAILER || avio_feof(pb))