fix #281, fix hls bug ignore type-9 send aud. 1.0.20

@@ -383,6 +383,7 @@ Supported operating systems and hardware:
 * 2013-10-17, Created.<br/>
 
 ## History
+* v1.0, 2015-01-08, hotfix [#281](https://github.com/winlinvip/simple-rtmp-server/issues/281), fix hls bug ignore type-9 send aud. 1.0.20
 * v1.0, 2015-01-03, hotfix to remove the pageUrl for http callback. 1.0.19
 * v1.0, 2015-01-02, hotfix [#207](https://github.com/winlinvip/simple-rtmp-server/issues/207), trim the last 0 of log. 1.0.18
 * v1.0, 2015-01-02, hotfix [#216](https://github.com/winlinvip/simple-rtmp-server/issues/216), http-callback post in application/json content-type. 1.0.17

@@ -1276,9 +1276,13 @@ int SrsHlsCache::cache_video(SrsAvcAacCodec* codec, SrsCodecSample* sample)
         // 6: Supplemental enhancement information (SEI) sei_rbsp( ), page 61
         // @see: ngx_rtmp_hls_append_aud
         if (!aud_sent) {
-            if (nal_unit_type == 9) {
+            // @remark, when got type 9, we donot send aud_nal, but it will make 
+            //      ios unhappy, so we remove it.
+            // @see https://github.com/winlinvip/simple-rtmp-server/issues/281
+            /*if (nal_unit_type == 9) {
                 aud_sent = true;
-            }
+            }*/
+            
             if (nal_unit_type == 1 || nal_unit_type == 5 || nal_unit_type == 6) {
                 // for type 6, append a aud with type 9.
                 vb->append((const char*)aud_nal, sizeof(aud_nal));
@@ -1487,6 +1491,10 @@ int SrsHls::on_video(SrsSharedPtrMessage* video)
     
     sample->clear();
     if ((ret = codec->video_avc_demux(video->payload, video->size, sample)) != ERROR_SUCCESS) {
+        if (sample->frame_type == SrsCodecVideoAVCFrameVideoInfoFrame) {
+            srs_warn("hls igone the info frame, ret=%d", ret);
+            return ERROR_SUCCESS;
+        }
         srs_error("hls codec demux video failed. ret=%d", ret);
         return ret;
     }

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       1
 #define VERSION_MINOR       0
-#define VERSION_REVISION    19
+#define VERSION_REVISION    20
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"
 #define RTMP_SIG_SRS_ROLE "origin/edge server"