Title:
Providing Interactive Functions through Active Client Buffer Management in Partitioned Video Broadcast
Providing Interactive Functions through Active Client Buffer Management in Partitioned Video Broadcast
Authors
Ammar, Mostafa H.
Kamel, Ibrahim
Mukherjee, Sarit
Fei, Zongming
Kamel, Ibrahim
Mukherjee, Sarit
Fei, Zongming
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Abstract
Partitioned video broadcast divides a video into segments and sends each
segment over one channel in cycles. In this paper, we propose an active
buffer management scheme to provide interactive functions in partitioned
video broadcast. The scheme uses client side buffering in a novel fashion
that relies on the simultaneous availability of past, present and
future parts of a video and lets the client selectively prefetch segments
from broadcast channels based on the observation of the play point in its
local buffer. The contents of the buffer are adjusted in such a way that the
relative position of the play point is kept in the middle part of the buffer
and a high probability of providing the interactive functions with the
contents of the local buffer is achieved. Discontinuous interactive
functions are used to deal with cases where the local buffering is not
sufficient
to provide some desired interaction. We design a new video partitioning that
is more suitable for interactive behaviors of clients. We introduce the
concept of feasible points which allows a client to move only to those
points within the broadcast stream that can preserve the continuity of
playback. Our simulations show that the active buffer management scheme can
implement interactive actions through buffering with a very high probability
in a wide range of user interaction levels.
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Date Issued
1999
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356732 bytes
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Text
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Technical Report