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Demo program error message.

Encodedecode demo started.
DavinciDisplay DavinciDisplay.1: Before finishing with S_FMT:
layer.pix_fmt.bytesperline = 736,
 layer.pix_fmt.width = 720,
 layer.pix_fmt.height = 576,
 layer.pix_fmt.sizeimage =635904
DavinciDisplay DavinciDisplay.1: pixfmt->width = 720,
 layer->layer_info.config.line_length= 736
############################
envp->videoDecoder : mpeg4dec_hdvicp, envp->videoEncoder : h264enc
envp->imageWidth : 352, envp->imageHeight : 272
############################
Error: Failed to create video encoder: h264enc

 

What's the problem?