For example, 120 Hz display can be favorably performed on a reception side even in the case of encoding and transmitting moving image data of 24 Hz at the frame rate of 60 Hz.A video stream of a second frame rate larger than a first frame rate is obtained by encoding each picture constituting moving image data of the first frame rate at the second frame rate. Identification information indicating a synchronization relationship between the first frame rate and display start timing is inserted into encoded image data of each picture constituting the video stream of the second frame rate.The video stream of the second frame rate in which the identification information is inserted is transmitted.