segafilm: Fix potential division by 0 on corrupted segafilm streams in the demuxer.

[ffmpeg] / libavformat / applehttpproto.c

diff --git a/libavformat/applehttpproto.c b/libavformat/applehttpproto.c
index 8a9bcb1ade5d300877e4b49dc06801e971fae16c..bb5029d82f69e047cccb8e261dcbb6e45c41fac3 100644 (file)
--- a/libavformat/applehttpproto.c
+++ b/libavformat/applehttpproto.c
@@ -2,20 +2,20 @@
  * Apple HTTP Live Streaming Protocol Handler
  * Copyright (c) 2010 Martin Storsjo
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
  * License as published by the Free Software Foundation; either
  * version 2.1 of the License, or (at your option) any later version.
  *
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
@@ -25,7 +25,6 @@
  * http://tools.ietf.org/html/draft-pantos-http-live-streaming
  */
 
-#define _XOPEN_SOURCE 600
 #include "libavutil/avstring.h"
 #include "avformat.h"
 #include "internal.h"
@@ -124,7 +123,7 @@ static int parse_playlist(URLContext *h, const char *url)
 
     free_segment_list(s);
     s->finished = 0;
-    while (!in->eof_reached) {
+    while (!url_feof(in)) {
         read_chomp_line(in, line, sizeof(line));
         if (av_strstart(line, "#EXT-X-STREAM-INF:", &ptr)) {
             struct variant_info info = {{0}};
@@ -195,7 +194,7 @@ static int applehttp_open(URLContext *h, const char *uri, int flags)
         av_strlcpy(s->playlisturl, "http://", sizeof(s->playlisturl));
         av_strlcat(s->playlisturl, nested_url, sizeof(s->playlisturl));
     } else {
-        av_log(NULL, AV_LOG_ERROR, "Unsupported url %s\n", uri);
+        av_log(h, AV_LOG_ERROR, "Unsupported url %s\n", uri);
         ret = AVERROR(EINVAL);
         goto fail;
     }
@@ -218,7 +217,7 @@ static int applehttp_open(URLContext *h, const char *uri, int flags)
     }
 
     if (s->n_segments == 0) {
-        av_log(NULL, AV_LOG_WARNING, "Empty playlist\n");
+        av_log(h, AV_LOG_WARNING, "Empty playlist\n");
         ret = AVERROR(EIO);
         goto fail;
     }
@@ -258,7 +257,7 @@ retry:
                 return ret;
     }
     if (s->cur_seq_no < s->start_seq_no) {
-        av_log(NULL, AV_LOG_WARNING,
+        av_log(h, AV_LOG_WARNING,
                "skipping %d segments ahead, expired from playlist\n",
                s->start_seq_no - s->cur_seq_no);
         s->cur_seq_no = s->start_seq_no;
@@ -274,12 +273,12 @@ retry:
         goto retry;
     }
     url = s->segments[s->cur_seq_no - s->start_seq_no]->url,
-    av_log(NULL, AV_LOG_DEBUG, "opening %s\n", url);
+    av_log(h, AV_LOG_DEBUG, "opening %s\n", url);
     ret = ffurl_open(&s->seg_hd, url, AVIO_FLAG_READ);
     if (ret < 0) {
         if (url_interrupt_cb())
             return AVERROR_EXIT;
-        av_log(NULL, AV_LOG_WARNING, "Unable to open %s\n", url);
+        av_log(h, AV_LOG_WARNING, "Unable to open %s\n", url);
         s->cur_seq_no++;
         goto retry;
     }