ffmpeg update to june 23 version which fixes mp4 crash on still frames with 3...

source/patched-ffmpeg-mt/libavformat/utils.c

 /*
  * various utility functions for use within FFmpeg
  * Copyright (c) 2000, 2001, 2002 Fabrice Bellard
  *
  * This file is part of FFmpeg.
  *
  * 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.
@@ skipping 265 matching lines @@
 AVInputFormat *av_find_input_format(const char *short_name)
 {
     AVInputFormat *fmt;
     for(fmt = first_iformat; fmt != NULL; fmt = fmt->next) {
         if (match_format(short_name, fmt->name))
             return fmt;
     }
     return NULL;
 }
 
-/* memory handling */
+#if LIBAVFORMAT_VERSION_MAJOR < 53 && CONFIG_SHARED && HAVE_SYMVER
+FF_SYMVER(void, av_destruct_packet_nofree, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_destruct_packet_nofree(pkt);
+}
 
+FF_SYMVER(void, av_destruct_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_destruct_packet(pkt);
+}
+
+FF_SYMVER(int, av_new_packet, (AVPacket *pkt, int size), "LIBAVFORMAT_52")
+{
+    return av_new_packet(pkt, size);
+}
+
+FF_SYMVER(int, av_dup_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    return av_dup_packet(pkt);
+}
+
+FF_SYMVER(void, av_free_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_free_packet(pkt);
+}
+
+FF_SYMVER(void, av_init_packet, (AVPacket *pkt), "LIBAVFORMAT_52")
+{
+    av_log(NULL, AV_LOG_WARNING, "Diverting av_*_packet function calls to libavcodec. Recompile to improve performance\n");
+    av_init_packet(pkt);
+}
+#endif
 
 int av_get_packet(ByteIOContext *s, AVPacket *pkt, int size)
 {
     int ret= av_new_packet(pkt, size);
 
     if(ret<0)
         return ret;
 
     pkt->pos= url_ftell(s);
 
@@ skipping 3271 matching lines @@
                 const char *authorization, const char *hostname,
                 int port, const char *fmt, ...)
 {
 #if CONFIG_NETWORK
     struct addrinfo hints, *ai;
 #endif
 
     str[0] = '\0';
     if (proto)
         av_strlcatf(str, size, "%s://", proto);
-    if (authorization)
+    if (authorization && authorization[0])
         av_strlcatf(str, size, "%s@", authorization);
 #if CONFIG_NETWORK && defined(AF_INET6)
     /* Determine if hostname is a numerical IPv6 address,
      * properly escape it within [] in that case. */
     memset(&hints, 0, sizeof(hints));
     hints.ai_flags = AI_NUMERICHOST;
     if (!getaddrinfo(hostname, NULL, &hints, &ai)) {
         if (ai->ai_family == AF_INET6) {
             av_strlcat(str, "[", size);
             av_strlcat(str, hostname, size);
@@ skipping 31 matching lines @@
         local_pkt.pts = av_rescale_q(pkt->pts,
                                      src->streams[pkt->stream_index]->time_base,
                                      dst->streams[dst_stream]->time_base);
     if (pkt->dts != AV_NOPTS_VALUE)
         local_pkt.dts = av_rescale_q(pkt->dts,
                                      src->streams[pkt->stream_index]->time_base,
                                      dst->streams[dst_stream]->time_base);
     return av_write_frame(dst, &local_pkt);
 }