[FFmpeg-user] h264 concealing error

[Diego Carvalho Domingos]

I'm getting the following error from the decoding process:
[h264 @ 0x9fcf9a0] concealing 300 DC, 300 AC, 300 MV errors
Is there a way (programmatically) to recognize this error?
The avcodec_decode_video2 only returns a negative value on error or
the number of decoded bytes.
Does this negative value represent something? Thanks in advance.