Image recording apparatus, image reproducing apparatus, image recording method, and image reproducing method

An image reproducing apparatus reproducing motion picture data that is generated by motion picture photography and is recorded and still image data that is generated by still photography and is recorded, the image reproducing apparatus comprising:

• a reading unit that reads out recording data from a recording medium in which the motion picture data is sequentially recorded in predetermined units as the recording data while only the motion picture photography is performed, the motion picture data including temporally continuous multiple pieces of frame image data generated by the motion picture photography and frame image display management times which are used for displaying and managing frame images based on the frame image data and which are added to the multiple pieces of the frame image data, and in which presence indication data and the motion picture data sequentially subjected to time division multiplexing in predetermined units are recorded as the recording data if the still photography is performed during the motion picture photography, the presence indication data being generated by using each of the frame image display management times added to the piece of the frame image data generated by the still photography as a still image display management time for displaying and managing a still image based on the still image data generated by the still photography, the presence indication data indicating that the still image data generated by the still photography during the motion picture photography exists;
• a demultiplexing unit that demultiplexes the readout recording data into the motion picture data in the predetermined units and the presence indication data in the predetermined units;
• and
• an indication processing unit that performs a presence indicating process, in which the presence of the still image data generated by the still photography during the motion picture photography is indicated, on the basis of the demultiplexed presence indication data when the presence indication data is demultiplexed from the recording data.

An image recording method of recording motion picture data generated by motion picture photography and still image data generated by still photography, the image recording method comprising the steps of:

• adding frame image display management times to temporally continuous multiple pieces of frame image data in the motion picture data generated by the motion picture photography, each of the frame image display management times being used for displaying and managing a frame image based on the frame image data;
• detecting the frame image display management time added to the piece of the frame image data generated by the still photography as a still image display management time for displaying and managing a still image based on the still image data generated by the still photography if the still photography is performed during the motion picture photography;
• generating presence indication data indicating that the still image data generated by the still photography during the motion picture photography exists on the basis of the still image display management time;
• and
• sequentially acquiring the motion picture data in which the frame image display management times are added to the pieces of the frame image data in predetermined units to record the acquired motion picture data on a recording medium as recording data while only the motion picture photography is performed and performing time division multiplexing to the presence indication data in predetermined units and the motion picture data in predetermined units while sequentially acquiring the presence indication data in the predetermined units and sequentially acquiring the motion picture data in the predetermined units to record the presence indication data and the motion picture data on the recording medium as recording data if the still photography is performed during the motion picture photography.

An image reproducing method of reproducing motion picture data that is generated by motion picture photography and is recorded and still image data that is generated by still photography and is recorded, the image reproducing method comprising the steps of:

• reading out recording data from a recording medium in which the motion picture data is sequentially recorded in predetermined units as the recording data while only the motion picture photography is performed, the motion picture data including temporally continuous multiple pieces of frame image data generated by the motion picture photography and frame image display management times which are used for displaying and managing frame images based on the frame image data and which are added to the multiple pieces of the frame image data, and in which presence indication data and the motion picture data sequentially subjected to time division multiplexing in predetermined units are recorded as the recording data if the still photography is performed during the motion picture photography, the presence indication data being generated by using each of the frame image display management times added to the piece of frame image data generated by the still photography as a still image display management time for displaying and managing a still image based on the still image data generated by the still photography, the presence indication data indicating that the still image data generated by the still photography during the motion picture photography exists;
• demultiplexing the readout recording data into the motion picture data in the predetermined units and the presence indication data in the predetermined units;
• and
• performing a presence indicating process, in which the presence of the still image data generated by the still photography during the motion picture photography is indicated, on the basis of the demultiplexed presence indication data when the presence indication data is demultiplexed from the recording data.