Merge commit '68b46774'

* commit '68b46774':
  lavf: Make probe_codec return an error code

Conflicts:
	libavformat/utils.c

A failure to reallocate should not free the array as it is used
to probe the codec. And failure to reallocate if the following
probe succeeds isnt a fatal error for probe_codec(). Thus this
is only partially merged to ensure probing still is attempted
with the data available.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/utils.c

@@ -579,7 +579,7 @@ static void force_codec_ids(AVFormatContext *s, AVStream *st)
     }
 }
 
-static void probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
+static int probe_codec(AVFormatContext *s, AVStream *st, const AVPacket *pkt)
 {
     if(st->request_probe>0){
         AVProbeData *pd = &st->probe_data;
@@ -622,11 +622,12 @@ no_packet:
             force_codec_ids(s, st);
         }
     }
+    return 0;
 }
 
 int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
 {
-    int ret, i;
+    int ret, i, err;
     AVStream *st;
 
     for(;;){
@@ -635,8 +636,10 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
         if (pktl) {
             *pkt = pktl->pkt;
             st = s->streams[pkt->stream_index];
-            if (s->raw_packet_buffer_remaining_size <= 0)
-                probe_codec(s, st, NULL);
+            if (s->raw_packet_buffer_remaining_size <= 0) {
+                if ((err = probe_codec(s, st, NULL)) < 0)
+                    return err;
+            }
             if(st->request_probe <= 0){
                 s->raw_packet_buffer = pktl->next;
                 s->raw_packet_buffer_remaining_size += pkt->size;
@@ -655,7 +658,8 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
             for (i = 0; i < s->nb_streams; i++) {
                 st = s->streams[i];
                 if (st->probe_packets) {
-                    probe_codec(s, st, NULL);
+                    if ((err = probe_codec(s, st, NULL)) < 0)
+                        return err;
                 }
                 av_assert0(st->request_probe <= 0);
             }
@@ -695,7 +699,8 @@ int ff_read_packet(AVFormatContext *s, AVPacket *pkt)
         add_to_pktbuf(&s->raw_packet_buffer, pkt, &s->raw_packet_buffer_end);
         s->raw_packet_buffer_remaining_size -= pkt->size;
 
-        probe_codec(s, st, pkt);
+        if ((err = probe_codec(s, st, pkt)) < 0)
+            return err;
     }
 }