refine config, check chunk size.

@@ -1180,6 +1180,8 @@ int SrsConfig::parse_file(const char* filename)
 int SrsConfig::check_config()
 {
     int ret = ERROR_SUCCESS;
+    
+    vector<SrsConfDirective*> vhosts = get_vhosts();
 
     ////////////////////////////////////////////////////////////////////////
     // check empty
@@ -1256,7 +1258,6 @@ int SrsConfig::check_config()
         }
     }
     if (true) {
-        vector<SrsConfDirective*> vhosts = get_vhosts();
         for (int i = 0; i < (int)vhosts.size(); i++) {
             SrsConfDirective* conf = vhosts[i];
             for (int i = 0; conf && i < (int)conf->directives.size(); i++) {
@@ -1441,7 +1442,30 @@ int SrsConfig::check_config()
         return ret;
     }
     
-    // TODO: FIXME: check others.
+    ////////////////////////////////////////////////////////////////////////
+    // check chunk size
+    ////////////////////////////////////////////////////////////////////////
+    if (get_global_chunk_size() < SRS_CONSTS_RTMP_MIN_CHUNK_SIZE 
+        || get_global_chunk_size() > SRS_CONSTS_RTMP_MAX_CHUNK_SIZE
+    ) {
+        ret = ERROR_SYSTEM_CONFIG_INVALID;
+        srs_error("directive chunk_size invalid, chunk_size=%d, must in [%d, %d], ret=%d", 
+            get_global_chunk_size(), SRS_CONSTS_RTMP_MIN_CHUNK_SIZE, 
+            SRS_CONSTS_RTMP_MAX_CHUNK_SIZE, ret);
+        return ret;
+    }
+    for (int i = 0; i < (int)vhosts.size(); i++) {
+        SrsConfDirective* vhost = vhosts[i];
+        if (get_chunk_size(vhost->arg0()) < SRS_CONSTS_RTMP_MIN_CHUNK_SIZE 
+            || get_chunk_size(vhost->arg0()) > SRS_CONSTS_RTMP_MAX_CHUNK_SIZE
+        ) {
+            ret = ERROR_SYSTEM_CONFIG_INVALID;
+            srs_error("directive vhost %s chunk_size invalid, chunk_size=%d, must in [%d, %d], ret=%d", 
+                vhost->arg0().c_str(), get_chunk_size(vhost->arg0()), SRS_CONSTS_RTMP_MIN_CHUNK_SIZE, 
+                SRS_CONSTS_RTMP_MAX_CHUNK_SIZE, ret);
+            return ret;
+        }
+    }
     
     ////////////////////////////////////////////////////////////////////////
     // check log name and level
@@ -1475,7 +1499,6 @@ int SrsConfig::check_config()
         srs_warn("http_api is disabled by configure");
     }
 #endif
-    vector<SrsConfDirective*> vhosts = get_vhosts();
     for (int i = 0; i < (int)vhosts.size(); i++) {
         SrsConfDirective* vhost = vhosts[i];
         srs_assert(vhost != NULL);

@@ -49,6 +49,20 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define SRS_CONSTS_RTMP_SRS_CHUNK_SIZE 60000
 // 6. Chunking, RTMP protocol default chunk size.
 #define SRS_CONSTS_RTMP_PROTOCOL_CHUNK_SIZE 128
+
+/**
+* 6. Chunking
+* The chunk size is configurable. It can be set using a control
+* message(Set Chunk Size) as described in section 7.1. The maximum
+* chunk size can be 65536 bytes and minimum 128 bytes. Larger values
+* reduce CPU usage, but also commit to larger writes that can delay
+* other content on lower bandwidth connections. Smaller chunks are not
+* good for high-bit rate streaming. Chunk size is maintained
+* independently for each direction.
+*/
+#define SRS_CONSTS_RTMP_MIN_CHUNK_SIZE 128
+#define SRS_CONSTS_RTMP_MAX_CHUNK_SIZE 65536
+
  
 // the following is the timeout for rtmp protocol, 
 // to avoid death connection.

@@ -169,19 +169,6 @@ messages.
 *****************************************************************************
 ****************************************************************************/
 /**
-* 6. Chunking
-* The chunk size is configurable. It can be set using a control
-* message(Set Chunk Size) as described in section 7.1. The maximum
-* chunk size can be 65536 bytes and minimum 128 bytes. Larger values
-* reduce CPU usage, but also commit to larger writes that can delay
-* other content on lower bandwidth connections. Smaller chunks are not
-* good for high-bit rate streaming. Chunk size is maintained
-* independently for each direction.
-*/
-#define RTMP_MIN_CHUNK_SIZE                     128
-#define RTMP_MAX_CHUNK_SIZE                     65536
-
-/**
 * 6.1. Chunk Format
 * Extended timestamp: 0 or 4 bytes
 * This field MUST be sent when the normal timsestamp is set to
@@ -3724,16 +3711,16 @@ int SrsSetChunkSizePacket::decode(SrsStream* stream)
     chunk_size = stream->read_4bytes();
     srs_info("decode chunk size success. chunk_size=%d", chunk_size);
     
-    if (chunk_size < RTMP_MIN_CHUNK_SIZE) {
+    if (chunk_size < SRS_CONSTS_RTMP_MIN_CHUNK_SIZE) {
         ret = ERROR_RTMP_CHUNK_SIZE;
         srs_error("invalid chunk size. min=%d, actual=%d, ret=%d", 
             ERROR_RTMP_CHUNK_SIZE, chunk_size, ret);
         return ret;
     }
-    if (chunk_size > RTMP_MAX_CHUNK_SIZE) {
+    if (chunk_size > SRS_CONSTS_RTMP_MAX_CHUNK_SIZE) {
         ret = ERROR_RTMP_CHUNK_SIZE;
         srs_error("invalid chunk size. max=%d, actual=%d, ret=%d", 
-            RTMP_MAX_CHUNK_SIZE, chunk_size, ret);
+            SRS_CONSTS_RTMP_MAX_CHUNK_SIZE, chunk_size, ret);
         return ret;
     }