fix #293, support http live flv/aac/mp3 stream with fast cache. 2.0.100.

@@ -515,6 +515,7 @@ Supported operating systems and hardware:
 
 ## History
 
+* v2.0, 2015-01-19, fix [#293](https://github.com/winlinvip/simple-rtmp-server/issues/293), support http live flv/aac/mp3 stream with fast cache. 2.0.100.
 * v2.0, 2015-01-18, fix [#293](https://github.com/winlinvip/simple-rtmp-server/issues/293), support rtmp remux to http flv live stream. 2.0.99.
 * v2.0, 2015-01-17, fix [#277](https://github.com/winlinvip/simple-rtmp-server/issues/277), refine http server refer to go http-framework. 2.0.98
 * v2.0, 2015-01-17, for [#277](https://github.com/winlinvip/simple-rtmp-server/issues/277), refine http api refer to go http-framework. 2.0.97

@@ -371,12 +371,21 @@ vhost http.flv.srs.com {
         # whether enable the http flv live streaming service for vhost.
         # default: off
         enabled     on;
+        # the fast cache for audio stream(mp3/aac),
+        # to cache more audio and send to client in a time to make android(weixin) happy.
+        # @remark the flv stream ignore it
+        # default: 30
+        fast_cache  30;
         # the stream mout for rtmp to remux to flv live streaming.
         # for example, if mount to [vhost]/[app]/[stream].flv, user access by http://[vhost]/[app]/[stream].flv
         # the variables:
         #       [vhost] current vhost for http flv live stream.
         #       [app] current app for http flv live stream.
         #       [stream] current stream for http flv live stream.
+        # the extension:
+        #       .flv mount http live flv stream, use default gop cache.
+        #       .mp3 mount http live mp3 stream, ignore video and audio mp3 codec required.
+        #       .aac mount http live aac stream, ignore video and audio aac codec required.
         # default: [vhost]/[app]/[stream].flv
         mount       [vhost]/[app]/[stream].flv;
     }

+# the config for srs to remux rtmp to aac live stream.
+# @see https://github.com/winlinvip/simple-rtmp-server/wiki/v2_CN_DeliveryHttpFlvStream
+# @see full.conf for detail config.
+
+listen              1935;
+max_connections     1000;
+http_stream {
+    enabled         on;
+    listen          8080;
+    dir             ./objs/nginx/html;
+}
+vhost __defaultVhost__ {
+    http_flv {
+        enabled     on;
+        fast_cache  30;
+        mount       [vhost]/[app]/[stream].aac;
+    }
+}

+# the config for srs to remux rtmp to mp3 live stream.
+# @see https://github.com/winlinvip/simple-rtmp-server/wiki/v2_CN_DeliveryHttpFlvStream
+# @see full.conf for detail config.
+
+listen              1935;
+max_connections     1000;
+http_stream {
+    enabled         on;
+    listen          8080;
+    dir             ./objs/nginx/html;
+}
+vhost __defaultVhost__ {
+    http_flv {
+        enabled     on;
+        fast_cache  30;
+        mount       [vhost]/[app]/[stream].mp3;
+    }
+}

@@ -1426,7 +1426,7 @@ int SrsConfig::check_config()
             } else if (n == "http_flv") {
                 for (int j = 0; j < (int)conf->directives.size(); j++) {
                     string m = conf->at(j)->name.c_str();
-                    if (m != "enabled" && m != "mount") {
+                    if (m != "enabled" && m != "mount" && m != "fast_cache") {
                         ret = ERROR_SYSTEM_CONFIG_INVALID;
                         srs_error("unsupported vhost http_flv directive %s, ret=%d", m.c_str(), ret);
                         return ret;
@@ -3469,6 +3469,30 @@ bool SrsConfig::get_vhost_http_flv_enabled(string vhost)
     return false;
 }
 
+double SrsConfig::get_vhost_http_flv_fast_cache(string vhost)
+{
+    SrsConfDirective* conf = get_vhost(vhost);
+    if (!conf) {
+        return SRS_CONF_DEFAULT_HTTP_AUDIO_FAST_CACHE;
+    }
+    
+    conf = conf->get("http_flv");
+    if (!conf) {
+        return SRS_CONF_DEFAULT_HTTP_AUDIO_FAST_CACHE;
+    }
+    
+    conf = conf->get("fast_cache");
+    if (!conf) {
+        return SRS_CONF_DEFAULT_HTTP_AUDIO_FAST_CACHE;
+    }
+    
+    if (conf->arg0().empty()) {
+        return SRS_CONF_DEFAULT_HTTP_AUDIO_FAST_CACHE;
+    }
+    
+    return ::atof(conf->arg0().c_str());
+}
+
 string SrsConfig::get_vhost_http_flv_mount(string vhost)
 {
     SrsConfDirective* conf = get_vhost(vhost);

@@ -68,6 +68,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_CONF_DEFAULT_HTTP_MOUNT "[vhost]/"
 #define SRS_CONF_DEFAULT_HTTP_FLV_MOUNT "[vhost]/[app]/[stream].flv"
 #define SRS_CONF_DEFAULT_HTTP_DIR SRS_CONF_DEFAULT_HLS_PATH
+#define SRS_CONF_DEFAULT_HTTP_AUDIO_FAST_CACHE 30
 
 #define SRS_CONF_DEFAULT_HTTP_STREAM_PORT 8080
 #define SRS_CONF_DEFAULT_HTTP_API_PORT 1985
@@ -971,6 +972,10 @@ public:
     */
     virtual bool                get_vhost_http_flv_enabled(std::string vhost);
     /**
+    * get the fast cache duration for http audio live stream.
+    */
+    virtual double              get_vhost_http_flv_fast_cache(std::string vhost);
+    /**
     * get the http flv live stream mount point for vhost.
     * used to generate the flv stream mount path.
     */

@@ -140,8 +140,9 @@ int SrsVodStream::serve_flv_stream(ISrsGoHttpResponseWriter* w, SrsHttpMessage*
     return ret;
 }
 
-SrsStreamCache::SrsStreamCache(SrsSource* s)
+SrsStreamCache::SrsStreamCache(SrsSource* s, SrsRequest* r)
 {
+    req = r->copy();
     source = s;
     queue = new SrsMessageQueue(true);
     pthread = new SrsThread("http-stream", this, 0, false);
@@ -153,6 +154,7 @@ SrsStreamCache::~SrsStreamCache()
     srs_freep(pthread);
     
     srs_freep(queue);
+    srs_freep(req);
 }
 
 int SrsStreamCache::start()
@@ -168,7 +170,8 @@ int SrsStreamCache::dump_cache(SrsConsumer* consumer)
         return ret;
     }
     
-    srs_trace("http: dump cache %d msgs, duration=%dms", queue->size(), queue->duration());
+    srs_trace("http: dump cache %d msgs, duration=%dms, cache=%.2fs", 
+        queue->size(), queue->duration(), _srs_config->get_vhost_http_flv_fast_cache(req->vhost));
     
     return ret;
 }
@@ -187,8 +190,8 @@ int SrsStreamCache::cycle()
     SrsMessageArray msgs(SRS_PERF_MW_MSGS);
     // TODO: FIMXE: add pithy print.
     
-    // TODO: FIXME: config it.
-    queue->set_queue_size(60);
+    // TODO: FIXME: support reload.
+    queue->set_queue_size(_srs_config->get_vhost_http_flv_fast_cache(req->vhost));
     
     while (true) {
         // get messages from consumer.
@@ -616,7 +619,7 @@ int SrsHttpServer::mount(SrsSource* s, SrsRequest* r)
     // remove the default vhost mount
     mount = srs_string_replace(mount, SRS_CONSTS_RTMP_DEFAULT_VHOST"/", "/");
     
-    entry->cache = new SrsStreamCache(s);
+    entry->cache = new SrsStreamCache(s, r);
     entry->stream = new SrsLiveStream(s, r, entry->cache);
     
     // start http stream cache thread

@@ -77,9 +77,10 @@ class SrsStreamCache : public ISrsThreadHandler
 private:
     SrsMessageQueue* queue;
     SrsSource* source;
+    SrsRequest* req;
     SrsThread* pthread;
 public:
-    SrsStreamCache(SrsSource* s);
+    SrsStreamCache(SrsSource* s, SrsRequest* r);
     virtual ~SrsStreamCache();
 public:
     virtual int start();

@@ -31,7 +31,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 // current release version
 #define VERSION_MAJOR       2
 #define VERSION_MINOR       0
-#define VERSION_REVISION    99
+#define VERSION_REVISION    100
 
 // server info.
 #define RTMP_SIG_SRS_KEY "SRS"