[M4IF Technotes] Switching between different bit-rates

[Christian Kloeckner]

Dear Ralph,
is there a difference between video and audio concerning switching between
different bit-rates?
Will this switching require user interaction or will it be invisible for the
user like Real's Surestream?
Thank You,
Christian
>Dear Lucia,
>
>are you talking about video or audio?
>
>Anyway, a scalable system would be the first choice in your case. You would
>encode a first layer with e.g. 32 kbit/s and a second (enhancement) layer
with
>again 32 kbit/s. Depending on the channel capacity, you might than transmit
both
>layers or only the first one (both layers are stored in separate
ElementaryStreams).
>
>Best regards,
>
>Ralph

>> Is there some standardization on how to switch among files with different
>> encoding rates?
>> Is there a reference software that allows the switching between the two
>>  files?
>>
>> I guess, if something exist it would be in the System part, Am i right?
>>
>> Thanks in advantage for your answer.
>>
>> Lucia Valentini
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Christian Klöckner
WDR, Technologie-Referat
50600 Köln, Germany
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mailto: christian.kloeckner   wdr.de
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