Imaging apparatus, processing method for imaging apparatus, and storage medium

A processing method of an imaging apparatus for generating a moving image stream and for transmitting the generated moving image stream, comprising:

• receiving, from an external apparatus via a network, at least a request command for a MPD (Media Presentation Description) file in which information relating to a plurality of moving image streams can be indicated;
• transmitting the MPD file to the external apparatus via a network, in response to receiving the request command for the MPD file;
• encoding a plurality of frames each of which corresponds to each of the plurality of moving image streams indicated in the MPD file by using intraframe coding, before a transmission request for a specific moving image stream included in the plurality of moving image streams is received, from the external apparatus via a network, when the request command for the playlist is received, and
• controlling generation of the plurality of moving image streams,
• transmitting, to the external apparatus via a network, the specific moving image stream including the frame, which has been encoded by using the intraframe coding before the transmission request command for the specific moving image stream has been received, in response to receiving the transmission request command for the specific moving image stream from the external apparatus via a network, and
• stopping generation of moving image streams other than the specific moving image stream included in the plurality of moving image streams, in response to receiving the transmission request command for the specific moving image stream from the external apparatus via a network.

A non-transitory computer-readable storage medium storing a program for causing a computer to execute a method, the method comprising:

• receiving, from an external apparatus via a network, at least a request command for a MPD (Media Presentation Description) file in which information relating to a plurality of moving image streams can be indicated;
• transmitting the MPD file to the external apparatus via a network, in response to receiving the request command for the MPD file;
• encoding a plurality of frames each of which corresponds to each of the plurality of moving image streams indicated in the MPD file by using intraframe coding, before a transmission request command for a specific moving image stream included in the plurality of moving image streams is received, from the external apparatus via a network, when the request command for the playlist is received by the imaging apparatus, and
• controlling generation of the plurality of moving image streams,
• transmitting, to the external apparatus via a network, the specific moving image stream including the frame, which has been encoded by using intraframe coding before the transmission request command for the specific moving image stream has been received, in response to receiving the transmission request command for the specific moving image stream from the external apparatus via a network, and
• stopping generation of moving image streams other than the specific moving image stream included in the plurality of moving image streams, in response to receiving the transmission request command for the specific moving image stream from the external apparatus via a network.