for #738, add box and fullbox.

@@ -156,7 +156,7 @@ ModuleLibIncs=(${SRS_OBJS_DIR})
 MODULE_FILES=("srs_kernel_error" "srs_kernel_log" "srs_kernel_buffer"
         "srs_kernel_utility" "srs_kernel_flv" "srs_kernel_codec" "srs_kernel_file" 
         "srs_kernel_consts" "srs_kernel_aac" "srs_kernel_mp3" "srs_kernel_ts"
-        "srs_kernel_stream" "srs_kernel_balance")
+        "srs_kernel_stream" "srs_kernel_balance" "srs_kernel_mp4")
 KERNEL_INCS="src/kernel"; MODULE_DIR=${KERNEL_INCS} . auto/modules.sh
 KERNEL_OBJS="${MODULE_OBJS[@]}"
 #
@@ -167,7 +167,7 @@ ModuleLibIncs=(${SRS_OBJS_DIR} ${LibSSLRoot})
 MODULE_FILES=("srs_protocol_amf0" "srs_protocol_io" "srs_rtmp_stack"
         "srs_rtmp_handshake" "srs_protocol_utility" "srs_rtmp_msg_array" "srs_protocol_stream"
         "srs_raw_avc" "srs_rtsp_stack" "srs_http_stack" "srs_protocol_kbps" "srs_protocol_json"
-        "srs_kafka_stack" "srs_kernel_mp4")
+        "srs_kafka_stack")
 PROTOCOL_INCS="src/protocol"; MODULE_DIR=${PROTOCOL_INCS} . auto/modules.sh
 PROTOCOL_OBJS="${MODULE_OBJS[@]}"
 #

@@ -23,3 +23,23 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
 #include <srs_kernel_mp4.hpp>
 
+SrsMp4Box::SrsMp4Box(uint32_t bt)
+{
+    size = 0;
+    type = bt;
+}
+
+SrsMp4Box::~SrsMp4Box()
+{
+}
+
+SrsMp4FullBox::SrsMp4FullBox(uint32_t bt, uint8_t v, uint32_t f) : SrsMp4Box(bt)
+{
+    version = v;
+    flags = f;
+}
+
+SrsMp4FullBox::~SrsMp4FullBox()
+{
+}
+

@@ -29,5 +29,39 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 #include <srs_core.hpp>
 
+/**
+ * 4.2 Object Structure
+ * ISO_IEC_14496-12-base-format-2012.pdf, page 16
+ */
+class SrsMp4Box
+{
+public:
+    // if size is 1 then the actual size is in the field largesize;
+    // if size is 0, then this box is the last one in the file, and its contents
+    // extend to the end of the file (normally only used for a Media Data Box)
+    uint32_t size;
+    uint32_t type;
+public:
+    SrsMp4Box(uint32_t bt);
+    virtual ~SrsMp4Box();
+};
+
+/**
+ * 4.2 Object Structure
+ * ISO_IEC_14496-12-base-format-2012.pdf, page 16
+ */
+class SrsMp4FullBox : public SrsMp4Box
+{
+public:
+    // an integer that specifies the version of this format of the box.
+    uint8_t version;
+    // a map of flags
+    uint32_t flags;
+public:
+    SrsMp4FullBox(uint32_t bt, uint8_t v, uint32_t f);
+    virtual ~SrsMp4FullBox();
+};
+
+
 #endif