X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=libavformat%2Fmicrodvddec.c;h=1f871b251829ab782c377d04cafe59f21c4384fc;hb=9b72cea4463dd2fabcd9ba1454a0855e521d0148;hp=08e6fca09cc575b235034c91935a8a7e742f8608;hpb=9bde6c6be0ea568f6ce646690616a0d4274095d4;p=ffmpeg

diff --git a/libavformat/microdvddec.c b/libavformat/microdvddec.c
index 08e6fca09cc..1f871b25182 100644
--- a/libavformat/microdvddec.c
+++ b/libavformat/microdvddec.c
@@ -81,7 +81,7 @@ static int microdvd_read_header(AVFormatContext *s)
     AVRational pts_info = (AVRational){ 2997, 125 };  /* default: 23.976 fps */
     MicroDVDContext *microdvd = s->priv_data;
     AVStream *st = avformat_new_stream(s, NULL);
-    int i = 0;
+    int i = 0, ret;
     char line_buf[MAX_LINESIZE];
     int has_real_fps = 0;
 
@@ -94,6 +94,7 @@ static int microdvd_read_header(AVFormatContext *s)
         int64_t pos = avio_tell(s->pb);
         int len = ff_get_line(s->pb, line_buf, sizeof(line_buf));
         char *line = line_buf;
+        int64_t pts;
 
         if (!strncmp(line, bom, 3))
             line += 3;
@@ -117,10 +118,10 @@ static int microdvd_read_header(AVFormatContext *s)
                 continue;
             }
             if (!st->codecpar->extradata && sscanf(line, "{DEFAULT}{}%c", &c) == 1) {
-                int ret, size = strlen(line + 11);
+                int size = strlen(line + 11);
                 ret = ff_alloc_extradata(st->codecpar, size);
                 if (ret < 0)
-                    return ret;
+                    goto fail;
                 memcpy(st->codecpar->extradata, line + 11, size);
                 continue;
             }
@@ -137,11 +138,16 @@ static int microdvd_read_header(AVFormatContext *s)
         SKIP_FRAME_ID;
         if (!*p)
             continue;
+        pts = get_pts(line);
+        if (pts == AV_NOPTS_VALUE)
+            continue;
         sub = ff_subtitles_queue_insert(&microdvd->q, p, strlen(p), 0);
-        if (!sub)
-            return AVERROR(ENOMEM);
+        if (!sub) {
+            ret = AVERROR(ENOMEM);
+            goto fail;
+        }
         sub->pos = pos;
-        sub->pts = get_pts(line);
+        sub->pts = pts;
         sub->duration = get_duration(line);
     }
     ff_subtitles_queue_finalize(s, &microdvd->q);
@@ -156,6 +162,9 @@ static int microdvd_read_header(AVFormatContext *s)
     st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
     st->codecpar->codec_id   = AV_CODEC_ID_MICRODVD;
     return 0;
+fail:
+    ff_subtitles_queue_clean(&microdvd->q);
+    return ret;
 }
 
 static int microdvd_read_packet(AVFormatContext *s, AVPacket *pkt)