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Technical notes:
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- To increase speed, only motion vectors (0,0) are tested
- The decision intra/predicted macroblock is the algorithm suggested
by the mpeg 1 specification.
- only Huffman based H263 is supported, mainly because of patent
issues.
- Many options can be modified only in the source code.
- I rewrote the mpeg audio layer 2 compatible encoder from scratch. It
is one of the simplest encoder you can imagine (800 lines of C code
!). It is also one of the fastest because of its simplicity. They
are still some problems of overflow. A minimal psycho acoustic model
could be added. Only mono stream can be generated. I may add stereo
if needed.
- I rewrote the AC3 audio encoder from scratch. It is fairly naive,
but the result are quiet interesting at 64 kbit/s. It includes
extensions for low sampling rates used in some Internet
formats. Differential and coupled stereo is not handled. Stereo
channels are simply handled as two mono channels.
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