| 摘要 |
At the time of device starting or channel switching in a content output device, even when buffering of a sufficiently large size is performed in order to address multimedia processing at the time of start of a device and content switching, slow reproduction in which video and audio are synchronized with each other can be performed without keeping a user waiting for a long time, and at an arbitrary reproduction rate with the extent of not giving the user feeling of unnaturalness. The broadcasting reception unit initializes the delay amount to a predetermined start value, then gradually increases it with lapse of time, and stops the increase when the delay amount reaches a predetermined end value. Video and audio are synchronously and slowly reproduced at a reproduction rate decided by an increment per unit time of the delay amount. |
| 主权项 |
1. A content output device, which:
extracts video data, audio data, time stamps attached to the video data and the audio data, and common time information, from an input content, manages local common time information that changes with lapse of time based on the extracted common time information, includes a buffer that temporarily accumulates the extracted video data and audio data based on a delay amount, respectively, outputs video data in which a time obtained by adding the delay amount to the attached time stamp coincides with or has passed the local common time information, among the video data of the content accumulated in the buffer, outputs audio data in which a time obtained by adding the delay amount to the attached time stamp coincides with or has passed the local common time information, among the audio data of the content accumulated in the buffer, and sets the delay amount to be a predetermined start value when a new content is input to the buffer, then gradually increases the delay amount with lapse of time, and stops the increase of the delay amount when the delay amount reaches a predetermined end value. |
