Embedded Video

Are you talking video input or output your description above and below seem contradictory.

Have you decided what processor yet?

Decoding logic suggests video input.

Without knowing what processor or system you are trying to add this to it would be pointless to suggest any particular device.

Small straight video controller ICs are rare these days, either people use larger cpus and larger grahics chips then use encoder or decoder chips.

Some processors have LCD or camera controllers built in which would do a lot of the work and adding video encoders would be simple to add.

But what sort of processor and what sort of memory size available.

You could be trying to add this to a bus that it is too slow or too narrow.