wowza.patch

diff --git a/libavformat/flvenc.c b/libavformat/flvenc.c
index ab71d41..53a9e0c 100644
--- a/libavformat/flvenc.c
+++ b/libavformat/flvenc.c
@@ -209,6 +209,7 @@ static void write_metadata(AVFormatContext *s, unsigned int ts)
     int metadata_count = 0;
     int64_t metadata_size_pos, data_size, metadata_count_pos;
     AVDictionaryEntry *tag = NULL;
+    char *sprop = NULL;
 
     /* write meta_tag */
     avio_w8(pb, 18);            // tag type META
@@ -307,11 +308,71 @@ static void write_metadata(AVFormatContext *s, unsigned int ts)
             av_log(s, AV_LOG_DEBUG, "Ignoring metadata for %s\n", tag->key);
             continue;
         }
+        if (!strcmp(tag->key, "sprop-parameter-sets")) {
+            sprop = strdup(tag->value);
+            continue;
+        }
         put_amf_string(pb, tag->key);
         avio_w8(pb, AMF_DATA_TYPE_STRING);
         put_amf_string(pb, tag->value);
         metadata_count++;
     }
+    
+    // For Wowza Server
+    if (sprop) {
+        put_amf_string(pb, "audiochannels");
+        put_amf_double(pb, flv->audio_enc->channels);
+        metadata_count++;
+
+        put_amf_string(pb, "trackinfo");
+        avio_w8(pb, AMF_DATA_TYPE_ARRAY);
+        avio_wb32(pb, 2);
+
+            avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY);
+            avio_wb32(pb, 2);
+
+                put_amf_string(pb, "type");
+                avio_w8(pb, AMF_DATA_TYPE_STRING);
+                put_amf_string(pb, "video");
+
+                put_amf_string(pb, "sprop-parameter-sets");
+                avio_w8(pb, AMF_DATA_TYPE_STRING);
+                put_amf_string(pb, sprop);
+
+            put_amf_string(pb, "");
+            avio_w8(pb, AMF_END_OF_OBJECT);
+
+            avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY);
+            avio_wb32(pb, 2);
+
+                put_amf_string(pb, "type");
+                avio_w8(pb, AMF_DATA_TYPE_STRING);
+                put_amf_string(pb, "audio");
+
+                put_amf_string(pb, "config");
+                avio_w8(pb, AMF_DATA_TYPE_STRING);
+                put_amf_string(pb, "1208");
+
+            put_amf_string(pb, "");
+            avio_w8(pb, AMF_END_OF_OBJECT);
+
+        put_amf_string(pb, "");
+        avio_w8(pb, AMF_END_OF_OBJECT);
+        metadata_count++;
+
+        put_amf_string(pb, "rtpsessioninfo");
+        avio_w8(pb, AMF_DATA_TYPE_MIXEDARRAY);
+        avio_wb32(pb, 1);
+
+            put_amf_string(pb, "timing");
+            avio_w8(pb, AMF_DATA_TYPE_STRING);
+            put_amf_string(pb, "0 0");
+
+        put_amf_string(pb, "");
+        avio_w8(pb, AMF_END_OF_OBJECT);
+        metadata_count++;
+    }
+    // End Wowza
 
     put_amf_string(pb, "filesize");
     flv->filesize_offset = avio_tell(pb);