The buffer zone data is generated through video acquisition.
通过采集视频生成缓冲区数据。
The video storage device also comprises an encoder unit 330, configured to encode current pictures according to the encoding method of I Frames when a video storage command is received before the buffer zone data is generated from acquired video.
Therein, the buffer zone data R Frame interval can be random or cyclical, for example, each cycle's corresponding video length is 1-3 seconds.
其中,所述缓冲区数据R帧的间隔可随机或周期,例如每个周期对应的视频的时长为1-3秒。
The first frame of the data of the buffer zone data to be stored to the storage fragment is an R Frame.
所述缓冲区数据中要存入当前存储片的数据的第一帧为R帧。
Because the buffer zone data here does not necessarily begin with an I Frame.
因为这里的缓冲区数据不一定是从一个I帧开始。
For buffer zone data where the first frame is an I Frame, decoding can be directly achieved via the I Frame, simply directly storing to the storage fragment.
对于第一帧为I帧的缓冲区数据,其可以直接从I帧实现解码,直接存入存储片即可;
Next, for a new storage fragment, the stored buffer zone data of the first unit can have two situations. One is that the first frame is an I Frame, and the other is that the first frame is an R Frame.
For buffer zone data where the first frame is an R Frame, an R Frame itself is unable to achieve independent decoding.
对于第一帧为R帧的缓冲区数据,R帧本身不能实现独立解码。
First frames of the remaining buffer zone data are always R Frames.
剩余的缓冲区数据的第一帧都是R帧。
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