Move send_media_packet_request() and clear_stream_buffers() up.

Patch by Zhentan Feng <spyfeng gmail com>.

Originally committed as revision 24698 to svn://svn.ffmpeg.org/ffmpeg/trunk

libavformat/mmst.c

@@ -620,6 +620,30 @@ static int mms_close(URLContext *h)
     return 0;
 }
 
+static int send_media_packet_request(MMSContext *mms)
+{
+    start_command_packet(mms, CS_PKT_START_FROM_PKT_ID);
+    insert_command_prefixes(mms, 1, 0x0001FFFF);
+    bytestream_put_le64(&mms->write_out_ptr, 0);          // seek timestamp
+    bytestream_put_le32(&mms->write_out_ptr, 0xffffffff); // unknown
+    bytestream_put_le32(&mms->write_out_ptr, 0xffffffff); // packet offset
+    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
+    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
+    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
+    bytestream_put_byte(&mms->write_out_ptr, 0x00);       // stream time limit flag
+
+    mms->packet_id++;                                     // new packet_id
+    bytestream_put_le32(&mms->write_out_ptr, mms->packet_id);
+    return send_command_packet(mms);
+}
+
+
+static void clear_stream_buffers(MMSContext *mms)
+{
+    mms->remaining_in_len = 0;
+    mms->read_in_ptr      = mms->in_buffer;
+}
+
 static int mms_open(URLContext *h, const char *uri, int flags)
 {
     MMSContext *mms;
@@ -685,30 +709,6 @@ fail:
     return err;
 }
 
-static int send_media_packet_request(MMSContext *mms)
-{
-    start_command_packet(mms, CS_PKT_START_FROM_PKT_ID);
-    insert_command_prefixes(mms, 1, 0x0001FFFF);
-    bytestream_put_le64(&mms->write_out_ptr, 0);          // seek timestamp
-    bytestream_put_le32(&mms->write_out_ptr, 0xffffffff); // unknown
-    bytestream_put_le32(&mms->write_out_ptr, 0xffffffff); // packet offset
-    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
-    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
-    bytestream_put_byte(&mms->write_out_ptr, 0xff);       // max stream time limit
-    bytestream_put_byte(&mms->write_out_ptr, 0x00);       // stream time limit flag
-
-    mms->packet_id++;                                     // new packet_id
-    bytestream_put_le32(&mms->write_out_ptr, mms->packet_id);
-    return send_command_packet(mms);
-}
-
-
-static void clear_stream_buffers(MMSContext *mms)
-{
-    mms->remaining_in_len = 0;
-    mms->read_in_ptr      = mms->in_buffer;
-}
-
 /** Read ASF data through the protocol. */
 static int mms_read(URLContext *h, uint8_t *buf, int size)
 {