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H263 decoder

The H263 decoder reads the streams encoded by the encoder as well as the control information generated to playback the encoded sequence. Like the encoder, it has several command-line options to fine-tune its operation. Instead of displaying the video on the screen (default operation), the decoder has the ability to store the output into a specified file in several formats. Regarding the frame rate, it is possible to precise any value instead of the default which is the rate of the encoded stream. To simulate loss, there are two added functions. For both options, the decoder reads the packet limits to know the size of each one. In the first method, the lost packets are given in a file by their sequence number. In the second method, we can specify the loss rate and the loss burst size and the decoder will decide which packets to be dropped in a random way to meet the loss patterns. In addition, it is simple to define any other loss method in the code. The decoder should also read the information to know the distribution of the encoded macro-blocks (Intra and Inter) for each packet. In page [*], we show a list of the command-line options of the decoder.
next up previous contents index
Next: Network Transport Simulation Up: Simulator Description Previous: H263 encoder   Contents   Index
Samir Mohamed 2003-01-08