[Libav-user] Libavcodec h264 decoder warnings

Tue Jun 5 06:40:49 CEST 2012

Hi,

I am using libavcodec for h264 decoding. It is working fine.But when i am
running my application for long run i will ge following debug prints on my
console & will added propagation delay. My application is receiving the
h264 frames from live camera(RTSP/rtp live streaming using live555).

[h264 @ 0x1319c00] Increasing reorder buffer to 1
[h264 @ 0x1319c00] concealing 66 DC, 66 AC, 66 MV errors
[h264 @ 0x1319c00] concealing 67 DC, 67 AC, 67 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 9 11
[h264 @ 0x1319c00] error while decoding MB 9 11
[h264 @ 0x1319c00] concealing 895 DC, 895 AC, 895 MV errors
[h264 @ 0x1319c00] negative number of zero coeffs at 30 12
[h264 @ 0x1319c00] error while decoding MB 30 12
[h264 @ 0x1319c00] concealing 829 DC, 829 AC, 829 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 27 9
[h264 @ 0x1319c00] error while decoding MB 27 9
[h264 @ 0x1319c00] concealing 967 DC, 967 AC, 967 MV errors
[h264 @ 0x1319c00] concealing 103 DC, 103 AC, 103 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 33 12
[h264 @ 0x1319c00] error while decoding MB 33 12
[h264 @ 0x1319c00] concealing 826 DC, 826 AC, 826 MV errors
[h264 @ 0x1319c00] left block unavailable for requested intra mode at 0 13
[h264 @ 0x1319c00] error while decoding MB 0 13
[h264 @ 0x1319c00] concealing 814 DC, 814 AC, 814 MV errors
[h264 @ 0x1319c00] concealing 150 DC, 150 AC, 150 MV errors
Not in order
[h264 @ 0x1319c00] concealing 110 DC, 110 AC, 110 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 18 19
[h264 @ 0x1319c00] error while decoding MB 18 19
[h264 @ 0x1319c00] concealing 526 DC, 526 AC, 526 MV errors
[h264 @ 0x1319c00] corrupted macroblock 33 29 (total_coeff=-1)
[h264 @ 0x1319c00] error while decoding MB 33 29
[h264 @ 0x1319c00] concealing 61 DC, 61 AC, 61 MV errors
[h264 @ 0x1319c00] mb_type 48 in I slice too large at 8 13
[h264 @ 0x1319c00] error while decoding MB 8 13
[h264 @ 0x1319c00] concealing 806 DC, 806 AC, 806 MV errors
[h264 @ 0x1319c00] concealing 62 DC, 62 AC, 62 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 44 12
[h264 @ 0x1319c00] error while decoding MB 44 12
[h264 @ 0x1319c00] concealing 815 DC, 815 AC, 815 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 14 24
[h264 @ 0x1319c00] error while decoding MB 14 24
[h264 @ 0x1319c00] concealing 305 DC, 305 AC, 305 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 9 13
[h264 @ 0x1319c00] error while decoding MB 9 13
[h264 @ 0x1319c00] concealing 805 DC, 805 AC, 805 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 0 13
[h264 @ 0x1319c00] error while decoding MB 0 13
[h264 @ 0x1319c00] concealing 814 DC, 814 AC, 814 MV errors
[h264 @ 0x1319c00] concealing 81 DC, 81 AC, 81 MV errors
[h264 @ 0x1319c00] negative number of zero coeffs at 16 13
[h264 @ 0x1319c00] error while decoding MB 16 13
[h264 @ 0x1319c00] concealing 798 DC, 798 AC, 798 MV errors
[h264 @ 0x1319c00] concealing 121 DC, 121 AC, 121 MV errors
[h264 @ 0x1319c00] mb_type 99 in I slice too large at 19 11
[h264 @ 0x1319c00] error while decoding MB 19 11
[h264 @ 0x1319c00] concealing 885 DC, 885 AC, 885 MV errors
[h264 @ 0x1319c00] concealing 148 DC, 148 AC, 148 MV errors
[h264 @ 0x1319c00] left block unavailable for requested intra mode at 0 19
[h264 @ 0x1319c00] error while decoding MB 0 19
[h264 @ 0x1319c00] concealing 544 DC, 544 AC, 544 MV errors
[h264 @ 0x1319c00] Increasing reorder buffer to 16
[h264 @ 0x1319c00] concealing 59 DC, 59 AC, 59 MV errors
[h264 @ 0x1319c00] negative number of zero coeffs at 28 18
[h264 @ 0x1319c00] error while decoding MB 28 18
[h264 @ 0x1319c00] concealing 561 DC, 561 AC, 561 MV errors
[h264 @ 0x1319c00] concealing 137 DC, 137 AC, 137 MV errors
[h264 @ 0x1319c00] concealing 57 DC, 57 AC, 57 MV errors
[h264 @ 0x1319c00] concealing 626 DC, 626 AC, 626 MV errors
[h264 @ 0x1319c00] concealing 61 DC, 61 AC, 61 MV errors
[h264 @ 0x1319c00] mb_type 180 in I slice too large at 44 8
[h264 @ 0x1319c00] error while decoding MB 44 8
[h264 @ 0x1319c00] concealing 995 DC, 995 AC, 995 MV errors
[h264 @ 0x1319c00] concealing 106 DC, 106 AC, 106 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 38 24
[h264 @ 0x1319c00] error while decoding MB 38 24
[h264 @ 0x1319c00] concealing 281 DC, 281 AC, 281 MV errors
[h264 @ 0x1319c00] corrupted macroblock 36 29 (total_coeff=-1)
[h264 @ 0x1319c00] error while decoding MB 36 29
[h264 @ 0x1319c00] concealing 58 DC, 58 AC, 58 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 12 9
[h264 @ 0x1319c00] error while decoding MB 12 9
[h264 @ 0x1319c00] concealing 982 DC, 982 AC, 982 MV errors
[h264 @ 0x1319c00] negative number of zero coeffs at 21 12
[h264 @ 0x1319c00] error while decoding MB 21 12
[h264 @ 0x1319c00] concealing 838 DC, 838 AC, 838 MV errors
[h264 @ 0x1319c00] concealing 56 DC, 56 AC, 56 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 41 7
[h264 @ 0x1319c00] error while decoding MB 41 7
[h264 @ 0x1319c00] concealing 1043 DC, 1043 AC, 1043 MV errors
[h264 @ 0x1319c00] Invalid level prefix
[h264 @ 0x1319c00] error while decoding MB 38 29
[h264 @ 0x1319c00] concealing 56 DC, 56 AC, 56 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 33 14
[h264 @ 0x1319c00] error while decoding MB 33 14
[h264 @ 0x1319c00] concealing 736 DC, 736 AC, 736 MV errors
[h264 @ 0x1319c00] concealing 95 DC, 95 AC, 95 MV errors
[h264 @ 0x1319c00] cbp too large (2119) at 20 7
[h264 @ 0x1319c00] error while decoding MB 20 7
[h264 @ 0x1319c00] concealing 1064 DC, 1064 AC, 1064 MV errors
[h264 @ 0x1319c00] concealing 52 DC, 52 AC, 52 MV errors
[h264 @ 0x1319c00] corrupted macroblock 18 7 (total_coeff=-1)
[h264 @ 0x1319c00] error while decoding MB 18 7
[h264 @ 0x1319c00] concealing 1066 DC, 1066 AC, 1066 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 16 8
[h264 @ 0x1319c00] error while decoding MB 16 8
[h264 @ 0x1319c00] concealing 1023 DC, 1023 AC, 1023 MV errors
[h264 @ 0x1319c00] concealing 101 DC, 101 AC, 101 MV errors
[h264 @ 0x1319c00] negative number of zero coeffs at 4 26
[h264 @ 0x1319c00] error while decoding MB 4 26
[h264 @ 0x1319c00] concealing 225 DC, 225 AC, 225 MV errors
[h264 @ 0x1319c00] concealing 55 DC, 55 AC, 55 MV errors
[h264 @ 0x1319c00] mb_type 63 in I slice too large at 30 8
[h264 @ 0x1319c00] error while decoding MB 30 8
[h264 @ 0x1319c00] concealing 1009 DC, 1009 AC, 1009 MV errors
[h264 @ 0x1319c00] concealing 55 DC, 55 AC, 55 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 6 8
[h264 @ 0x1319c00] error while decoding MB 6 8
[h264 @ 0x1319c00] concealing 1033 DC, 1033 AC, 1033 MV errors
[h264 @ 0x1319c00] concealing 66 DC, 66 AC, 66 MV errors
[h264 @ 0x1319c00] out of range intra chroma pred mode at 9 8
[h264 @ 0x1319c00] error while decoding MB 9 8
[h264 @ 0x1319c00] concealing 1030 DC, 1030 AC, 1030 MV errors

Thanks in advance
KP