Merge commit '57b1eb9f75b04571063ddec316e290c216c114ac'

[ffmpeg] / libavformat / movenc.c

diff --git a/libavformat/movenc.c b/libavformat/movenc.c
index b861cf877f30fc5b2a89ff875e6cb2809940bcf4..80ddd2c78f48d0b6498fe6992140d1ae8ddeace0 100644 (file)
--- a/libavformat/movenc.c
+++ b/libavformat/movenc.c
@@ -614,7 +614,12 @@ static int get_cluster_duration(MOVTrack *track, int cluster_idx)
     else
         next_dts = track->cluster[cluster_idx + 1].dts;
 
-    return next_dts - track->cluster[cluster_idx].dts;
+    next_dts -= track->cluster[cluster_idx].dts;
+
+    av_assert0(next_dts >= 0);
+    av_assert0(next_dts <= INT_MAX);
+
+    return next_dts;
 }
 
 static int get_samples_per_packet(MOVTrack *track)
@@ -3255,6 +3260,17 @@ int ff_mov_write_packet(AVFormatContext *s, AVPacket *pkt)
     int size = pkt->size;
     uint8_t *reformatted_data = NULL;
 
+    if (trk->entry) {
+        int64_t duration = pkt->dts - trk->cluster[trk->entry - 1].dts;
+        if (duration < 0 || duration > INT_MAX) {
+            av_log(s, AV_LOG_ERROR, "Application provided duration: %"PRId64" / timestamp: %"PRId64" is out of range for mov/mp4 format\n",
+                duration, pkt->dts
+            );
+
+            pkt->dts = trk->cluster[trk->entry - 1].dts + 1;
+            pkt->pts = AV_NOPTS_VALUE;
+        }
+    }
     if (mov->flags & FF_MOV_FLAG_FRAGMENT) {
         int ret;
         if (mov->fragments > 0) {
@@ -3745,7 +3761,7 @@ static int mov_write_header(AVFormatContext *s)
     }
 
     if (!supports_edts(mov) && s->avoid_negative_ts < 0) {
-        s->avoid_negative_ts = 1;
+        s->avoid_negative_ts = 2;
     }
 
     /* Non-seekable output is ok if using fragmentation. If ism_lookahead