Content generation device and method
A technology for generating devices and content, applied in synchronization devices, selective content distribution, TV, etc., can solve unexpected problems such as processing multimedia data, and achieve the effect of output synchronization
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no. 1 approach
[0051] [the whole frame]
[0052] figure 1 It is a functional configuration diagram of the content generation device according to the first embodiment of the present invention. The content generation device 100 manages content creators and generates content streams including AV streams and multimedia streams. At this time, the content stream is generated so that the output of AV data and the output of multimedia data are synchronized. The generated content stream is sent to the content recording unit 200 , temporarily recorded, and then played back by the content playback unit 300 . In addition, the generated content stream may be transmitted to the content playback mechanism 300, and may be played back without recording.
[0053] The content generation device 100 is provided in a broadcasting station such as a digital TV. The content recording unit 200 and the content playback unit 300 are connected to or installed in receivers of digital TV viewers. The content recordin...
no. 2 approach
[0123] The content generation device 100 according to the second embodiment accepts changes in the order of transmission of data modules. This content generation device 100 can have the same functional structure as that of the first embodiment, except for a program that adds a function of accepting changes in the order of transmission of data modules to the functions of the data stream generation unit 102 .
[0124] Figure 10 It is a schematic explanatory diagram showing additional functions of the data stream generating means 102 of the second embodiment. The data stream generation unit 102 determines the transmission order of the data modules for which the transmission time is specified, and accepts a change in the transmission order when all the data modules cannot be transmitted in this order. For example Figure 10 An example of changing the transmission order of data blocks (ID=0, 1, 2) whose transmission time all overlaps is shown. Initially, "0", "0", "1", "0", "0"...
no. 3 approach
[0136] In the third embodiment, a case is considered in which a file specifying a transmission time (hereinafter referred to as an event message) is input as a multimedia data file. The functional configuration of the content generation device 100 is the same as that of the first embodiment except for the content described above.
[0137] Figure 13 An example of the transmission time of the input event message is shown. The time on the time axis of the specified AV stream is transmitted at the time. In this example, the relative time from the beginning of the AV stream is specified in units of seconds, thereby specifying the transmission time of the event message. For example, the transmission time of the event message ID "1" is 100 seconds after the start of the AV stream. In addition, the event message is specified by combining the event message ID and the event message version.
[0138] Figure 14 It is a flowchart showing an example of the flow of a data stream gener...
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