| Finding
the Video Bit-rate of a Transport Stream These screen captures are from TSReader, a useful tool for transport stream analysis. The first step is to identify the video PID (0x0011 in this case) as shown by the arrow. The bar-graph below shows the rates and percentages taken up by each elementary stream that is multiplexed into the transport stream file.
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| Screen shot
from an H.264 (MPEG-4) transport stream: It
can easily be seen that the video rate is 1.91Mb/s (average) and
accounts for 40% of the total stream bandwidth of 5Mb/s. The rest of the
stream is just filler (null) packets and audio. Compare with the MPEG-2
stream below. |
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Screen shot showing an
MPEG-2 stream: the
video rate is 2.49Mb/s (average) and accounts for 52% of the total
stream bandwidth of 5Mb/s. |
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