adjust the timecode when transcode speex to aac

@@ -1737,12 +1737,13 @@ int SrsSource::on_audio(SrsCommonMessage* shared_audio)
 
 					shared_audio->payload = new char[1024];
 					out_size = 1022;
-					int ret_aac = aec_aac.encode_frame((tc_audio_opt *)_aac_opt, out_data, (uint8_t *)shared_audio->payload + 2 , &out_size);
+					int ret_aac = aec_aac.encode_frame((tc_audio_opt *)_aac_opt, out_data, (uint8_t *)shared_audio->payload + 2 , &out_size, &(shared_audio->header.timestamp));
 					if (ret_aac >= 0){
 						if (out_size){
 							shared_audio->payload[0] = 0xAF;
 							shared_audio->payload[1] = 0x01;
 							shared_audio->size = out_size +2;
+
 							ret = _on_audio(shared_audio);
 #if 0
 							static int max_out_size = 0;

@@ -130,7 +130,7 @@ static int open_codec_aac(tc_audio_opt* opt) {
 }
 
 
-static int encode_frame_aac(tc_audio_opt* opt, uint8_t* inData, uint8_t* inOutData, uint32_t* inOutDataSize) {
+static int encode_frame_aac(tc_audio_opt* opt, uint8_t* inData, uint8_t* inOutData, uint32_t* inOutDataSize, int64_t * inoutTimeStamp) {
     handle_aec_aac_t* s = (handle_aec_aac_t*)opt->handle;
     
     AACENC_BufDesc in_buf = { 0 }, out_buf = { 0 };
@@ -179,6 +179,11 @@ static int encode_frame_aac(tc_audio_opt* opt, uint8_t* inData, uint8_t* inOutDa
 
 		*inOutDataSize = out_args.numOutBytes;
 		memcpy(s->buf, inData + 2048 - s->data_len, opt->buffer_size -( 2048 - s->data_len));
+
+		//shfit time stamp to the length of s->data_len
+		//1000ms / 16000 =  0.0625
+		*inoutTimeStamp  = *inoutTimeStamp - (s->data_len * 0.0625 / 2);
+
 		s->data_len = opt->buffer_size - (2048 - s->data_len);
 	}
 

@@ -33,8 +33,8 @@ typedef struct {
     int (*open_codec)(tc_audio_opt* opt);
     
     int (*decode_frame)(tc_audio_opt* opt, uint8_t* inData, uint32_t inDataSize, uint8_t* outData);
-    
-    int (*encode_frame)(tc_audio_opt* opt, uint8_t* inData, uint8_t* inoutData, uint32_t* inoutDataSize);
+    //inoutTimeStamp is in ms
+    int (*encode_frame)(tc_audio_opt* opt, uint8_t* inData, uint8_t* inoutData, uint32_t* inoutDataSize, int64_t * inoutTimeStamp);
     
     int (*close_codec)(tc_audio_opt* opt);