for #155, fix all warnings for mac.

@@ -38,6 +38,9 @@ gcc srs_flv_injecter.c ../../objs/lib/srs_librtmp.a -g -O0 -lstdc++ -o srs_flv_i
 #define ERROR_INJECTED 10000
 
 int process(const char* in_flv_file, const char* out_flv_file, srs_flv_t* pic, srs_flv_t* poc);
+int build_keyframes(srs_flv_t ic, srs_amf0_t *pname, srs_amf0_t* pdata, srs_amf0_t* pfilepositions, int64_t* pmetadata_end_offset);
+int do_inject_flv(srs_flv_t ic, srs_flv_t oc, srs_amf0_t amf0_name, srs_amf0_t amf0_data, srs_amf0_t filepositions, int64_t metadata_end_offset);
+
 int main(int argc, char** argv)
 {
     int ret = 0;

@@ -122,6 +122,8 @@ int parse_bytes(char* data, int size, char* hbuf, int hsize, char* tbuf, int tsi
     if (size > print_size * 2) {
         digit_to_char(data + size - print_size, size, tbuf, tsize - 1);
     }
+
+    return 0;
 }
 
 int parse_flv(srs_flv_t flv)

@@ -146,11 +146,11 @@ int main(int argc, char** argv)
     }
     srs_human_trace("publish stream success");
     
-    u_int32_t dts = 0;
-    u_int32_t pts = 0;
+    int dts = 0;
+    int pts = 0;
     // @remark, the dts and pts if read from device, for instance, the encode lib,
     // so we assume the fps is 25, and each h264 frame is 1000ms/25fps=40ms/f.
-    u_int32_t fps = 25;
+    int fps = 25;
     // @remark, to decode the file.
     char* p = h264_raw;
     for (;p < h264_raw + file_size;) {
@@ -158,9 +158,7 @@ int main(int argc, char** argv)
         char* data = NULL;
         int size = 0;
         int nb_start_code = 0;
-        if (read_h264_frame(h264_raw, file_size, &p, &nb_start_code, fps, 
-            &data, &size, &dts, &pts) < 0
-        ) {
+        if (read_h264_frame(h264_raw, (int)file_size, &p, &nb_start_code, fps, &data, &size, &dts, &pts) < 0) {
             srs_human_trace("read a frame from file buffer failed.");
             goto rtmp_destroy;
         }

@@ -262,7 +262,6 @@ private:
 
 SrsHds::SrsHds(SrsSource *s)
     : currentSegment(NULL)
-    , source(s)
     , fragment_index(1)
     , video_sh(NULL)
     , audio_sh(NULL)

@@ -55,7 +55,6 @@ private:
 private:
     std::list<SrsHdsFragment *> fragments;
     SrsHdsFragment *currentSegment;
-    SrsSource *source;
     int fragment_index;
     SrsSharedPtrMessage *video_sh;
     SrsSharedPtrMessage *audio_sh;

@@ -932,8 +932,8 @@ int SrsHttpResponseReader::read_chunked(std::string& data)
     srs_assert(length >= 3);
     
     // it's ok to set the pos and pos+1 to NULL.
-    at[length - 1] = NULL;
-    at[length - 2] = NULL;
+    at[length - 1] = 0;
+    at[length - 2] = 0;
     
     // size is the bytes size, excludes the chunk header and end CRLF.
     int ilength = ::strtol(at, NULL, 16);

@@ -33,7 +33,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #include <srs_app_st.hpp>
 #include <srs_app_thread.hpp>
 
-class sockaddr_in;
+struct sockaddr_in;
 
 /**
 * the udp packet handler.

@@ -32,7 +32,7 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #ifdef SRS_AUTO_STREAM_CASTER
 
-class sockaddr_in;
+struct sockaddr_in;
 #include <string>
 #include <map>
 
@@ -46,7 +46,7 @@ class SrsRequest;
 class SrsRawH264Stream;
 class SrsSharedPtrMessage;
 class SrsRawAacStream;
-class SrsRawAacStreamCodec;
+struct SrsRawAacStreamCodec;
 class SrsPithyPrint;
 
 #include <srs_app_st.hpp>

@@ -51,7 +51,7 @@ class SrsStSocket;
 class SrsRtmpClient;
 class SrsRawH264Stream;
 class SrsRawAacStream;
-class SrsRawAacStreamCodec;
+struct SrsRawAacStreamCodec;
 class SrsSharedPtrMessage;
 class SrsCodecSample;
 class SrsSimpleBuffer;

@@ -2086,7 +2086,6 @@ char srs_utils_flv_audio_aac_packet_type(char* data, int size)
     }
     
     u_int8_t aac_packet_type = data[1];
-    aac_packet_type = aac_packet_type;
     if (aac_packet_type > 1) {
         return -1;
     }

@@ -534,6 +534,85 @@ SrsSharedPtrMessage* SrsSharedPtrMessage::copy()
     return copy;
 }
 
+SrsPacket::SrsPacket()
+{
+}
+
+SrsPacket::~SrsPacket()
+{
+}
+
+int SrsPacket::encode(int& psize, char*& ppayload)
+{
+    int ret = ERROR_SUCCESS;
+    
+    int size = get_size();
+    char* payload = NULL;
+    
+    SrsStream stream;
+    
+    if (size > 0) {
+        payload = new char[size];
+        
+        if ((ret = stream.initialize(payload, size)) != ERROR_SUCCESS) {
+            srs_error("initialize the stream failed. ret=%d", ret);
+            srs_freep(payload);
+            return ret;
+        }
+    }
+    
+    if ((ret = encode_packet(&stream)) != ERROR_SUCCESS) {
+        srs_error("encode the packet failed. ret=%d", ret);
+        srs_freep(payload);
+        return ret;
+    }
+    
+    psize = size;
+    ppayload = payload;
+    srs_verbose("encode the packet success. size=%d", size);
+    
+    return ret;
+}
+
+int SrsPacket::decode(SrsStream* stream)
+{
+    int ret = ERROR_SUCCESS;
+    
+    srs_assert(stream != NULL);
+    
+    ret = ERROR_SYSTEM_PACKET_INVALID;
+    srs_error("current packet is not support to decode. ret=%d", ret);
+    
+    return ret;
+}
+
+int SrsPacket::get_prefer_cid()
+{
+    return 0;
+}
+
+int SrsPacket::get_message_type()
+{
+    return 0;
+}
+
+int SrsPacket::get_size()
+{
+    return 0;
+}
+
+int SrsPacket::encode_packet(SrsStream* stream)
+{
+    int ret = ERROR_SUCCESS;
+    
+    srs_assert(stream != NULL);
+    
+    ret = ERROR_SYSTEM_PACKET_INVALID;
+    srs_error("current packet is not support to encode. ret=%d", ret);
+    
+    return ret;
+}
+
 SrsProtocol::AckWindowSize::AckWindowSize()
 {
     ack_window_size = 0;
@@ -2020,85 +2099,6 @@ SrsChunkStream::~SrsChunkStream()
     srs_freep(msg);
 }
 
-SrsPacket::SrsPacket()
-{
-}
-
-SrsPacket::~SrsPacket()
-{
-}
-
-int SrsPacket::encode(int& psize, char*& ppayload)
-{
-    int ret = ERROR_SUCCESS;
-    
-    int size = get_size();
-    char* payload = NULL;
-    
-    SrsStream stream;
-    
-    if (size > 0) {
-        payload = new char[size];
-        
-        if ((ret = stream.initialize(payload, size)) != ERROR_SUCCESS) {
-            srs_error("initialize the stream failed. ret=%d", ret);
-            srs_freep(payload);
-            return ret;
-        }
-    }
-    
-    if ((ret = encode_packet(&stream)) != ERROR_SUCCESS) {
-        srs_error("encode the packet failed. ret=%d", ret);
-        srs_freep(payload);
-        return ret;
-    }
-    
-    psize = size;
-    ppayload = payload;
-    srs_verbose("encode the packet success. size=%d", size);
-    
-    return ret;
-}
-
-int SrsPacket::decode(SrsStream* stream)
-{
-    int ret = ERROR_SUCCESS;
-    
-    srs_assert(stream != NULL);
-
-    ret = ERROR_SYSTEM_PACKET_INVALID;
-    srs_error("current packet is not support to decode. ret=%d", ret);
-    
-    return ret;
-}
-
-int SrsPacket::get_prefer_cid()
-{
-    return 0;
-}
-
-int SrsPacket::get_message_type()
-{
-    return 0;
-}
-
-int SrsPacket::get_size()
-{
-    return 0;
-}
-
-int SrsPacket::encode_packet(SrsStream* stream)
-{
-    int ret = ERROR_SUCCESS;
-    
-    srs_assert(stream != NULL);
-
-    ret = ERROR_SYSTEM_PACKET_INVALID;
-    srs_error("current packet is not support to encode. ret=%d", ret);
-    
-    return ret;
-}
-
 SrsConnectAppPacket::SrsConnectAppPacket()
 {
     command_name = RTMP_AMF0_COMMAND_CONNECT;

@@ -318,6 +318,60 @@ public:
 };
 
 /**
+ * the decoded message payload.
+ * @remark we seperate the packet from message,
+ *        for the packet focus on logic and domain data,
+ *        the message bind to the protocol and focus on protocol, such as header.
+ *         we can merge the message and packet, using OOAD hierachy, packet extends from message,
+ *         it's better for me to use components -- the message use the packet as payload.
+ */
+class SrsPacket
+{
+public:
+    SrsPacket();
+    virtual ~SrsPacket();
+public:
+    /**
+     * the subpacket can override this encode,
+     * for example, video and audio will directly set the payload withou memory copy,
+     * other packet which need to serialize/encode to bytes by override the
+     * get_size and encode_packet.
+     */
+    virtual int encode(int& size, char*& payload);
+    // decode functions for concrete packet to override.
+public:
+    /**
+     * subpacket must override to decode packet from stream.
+     * @remark never invoke the super.decode, it always failed.
+     */
+    virtual int decode(SrsStream* stream);
+    // encode functions for concrete packet to override.
+public:
+    /**
+     * the cid(chunk id) specifies the chunk to send data over.
+     * generally, each message perfer some cid, for example,
+     * all protocol control messages perfer RTMP_CID_ProtocolControl,
+     * SrsSetWindowAckSizePacket is protocol control message.
+     */
+    virtual int get_prefer_cid();
+    /**
+     * subpacket must override to provide the right message type.
+     * the message type set the RTMP message type in header.
+     */
+    virtual int get_message_type();
+protected:
+    /**
+     * subpacket can override to calc the packet size.
+     */
+    virtual int get_size();
+    /**
+     * subpacket can override to encode the payload to stream.
+     * @remark never invoke the super.encode_packet, it always failed.
+     */
+    virtual int encode_packet(SrsStream* stream);
+};
+
+/**
 * the protocol provides the rtmp-message-protocol services,
 * to recv RTMP message from RTMP chunk stream,
 * and to send out RTMP message over RTMP chunk stream.
@@ -663,60 +717,6 @@ public:
 };
 
 /**
-* the decoded message payload.
-* @remark we seperate the packet from message,
-*        for the packet focus on logic and domain data,
-*        the message bind to the protocol and focus on protocol, such as header.
-*         we can merge the message and packet, using OOAD hierachy, packet extends from message,
-*         it's better for me to use components -- the message use the packet as payload.
-*/
-class SrsPacket
-{
-public:
-    SrsPacket();
-    virtual ~SrsPacket();
-public:
-    /**
-    * the subpacket can override this encode,
-    * for example, video and audio will directly set the payload withou memory copy,
-    * other packet which need to serialize/encode to bytes by override the 
-    * get_size and encode_packet.
-    */
-    virtual int encode(int& size, char*& payload);
-// decode functions for concrete packet to override.
-public:
-    /**
-    * subpacket must override to decode packet from stream.
-    * @remark never invoke the super.decode, it always failed.
-    */
-    virtual int decode(SrsStream* stream);
-// encode functions for concrete packet to override.
-public:
-    /**
-    * the cid(chunk id) specifies the chunk to send data over.
-    * generally, each message perfer some cid, for example, 
-    * all protocol control messages perfer RTMP_CID_ProtocolControl,
-    * SrsSetWindowAckSizePacket is protocol control message.
-    */
-    virtual int get_prefer_cid();
-    /**
-    * subpacket must override to provide the right message type.
-    * the message type set the RTMP message type in header.
-    */
-    virtual int get_message_type();
-protected:
-    /**
-    * subpacket can override to calc the packet size.
-    */
-    virtual int get_size();
-    /**
-    * subpacket can override to encode the payload to stream.
-    * @remark never invoke the super.encode_packet, it always failed.
-    */
-    virtual int encode_packet(SrsStream* stream);
-};
-
-/**
 * 4.1.1. connect
 * The client sends the connect command to the server to request
 * connection to a server application instance.