[FFmpeg-user] Getting error when try to decode RTP playload with H263+ video codec

[chetan goni]

Hi All,

I am running below command to decode H263+ video

*".//ffmpeg -f h263 -i  video.bin -f flv out.flv"*

Here:

Video.bin = This RTP playload dump contains video;

*But getting error:*

PS D:\ffmpeg\bin> .//ffmpeg -f h263 -i  video.bin -f flv out.flv

ffmpeg version 4.0.2 Copyright (c) 2000-2018 the FFmpeg developers
  built with gcc 7.3.1 (GCC) 20180722

  configuration: --disable-static --enable-shared --enable-gpl
--enable-version3 --enable-sdl2 --enable-bzlib --enable-fontconfig
--enable-gnutls --enable-iconv --enable-libass --enable-libbluray
--enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb
--enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
--enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora
--enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp
--enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg
--enable-lzma --enable-zlib --enable-gmp --enable-libvidstab
--enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
--enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
--enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va
--enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 14.100 / 56. 14.100
  libavcodec     58. 18.100 / 58. 18.100
  libavformat    58. 12.100 / 58. 12.100
  libavdevice    58.  3.100 / 58.  3.100
  libavfilter     7. 16.100 /  7. 16.100
  libswscale      5.  1.100 /  5.  1.100
  libswresample   3.  1.100 /  3.  1.100
  libpostproc    55.  1.100 / 55.  1.100
Input #0, h263, from 'video.bin':
  Duration: N/A, bitrate: N/A
    Stream #0:0: Video: h263, yuv420p, 176x144 [SAR 12:11 DAR 4:3], 29.97
fps, 29.97 tbr, 1200k tbn, 29.97 tbc
Stream mapping:
  Stream #0:0 -> #0:0 (h263 (native) -> flv1 (flv))
Press [q] to stop, [?] for help
[h263 @ 00000257c7e6df40] I cbpc damaged at 0 8
[h263 @ 00000257c7e6df40] Error at MB: 96
[h263 @ 00000257c7e6df40] concealing 88 DC, 88 AC, 88 MV errors in I frame
Output #0, flv, to 'out.flv':
  Metadata:
    encoder         : Lavf58.12.100
    Stream #0:0: Video: flv1 (flv) ([2][0][0][0] / 0x0002), yuv420p, 176x144
[SAR 12:11 DAR 4:3], q=2-31, 200 kb/s, 29.97 fps, 1k tbn, 29.97 tbc
    Metadata:
      encoder         : Lavc58.18.100 flv
    Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: -1
[h263 @ 00000257c7e6df40] Error at MB: 24
[h263 @ 00000257c7e6df40] I cbpy damaged at 7 3
[h263 @ 00000257c7e6df40] Error at MB: 43
[h263 @ 00000257c7e6df40] illegal dc 0 at 6 6
[h263 @ 00000257c7e6df40] illegal ac vlc code at 6x6
[h263 @ 00000257c7e6df40] Error at MB: 78
[h263 @ 00000257c7e6df40] illegal ac vlc code at 9x5
[h263 @ 00000257c7e6df40] Error at MB: 69
[h263 @ 00000257c7e6df40] illegal dc 0 at 4 7
    Last message repeated 2 times
[h263 @ 00000257c7e6df40] cbpy damaged at 5 7
[h263 @ 00000257c7e6df40] Error at MB: 89
[h263 @ 00000257c7e6df40] concealing 88 DC, 88 AC, 88 MV errors in P frame
frame=    3 fps=0.0 q=2.0 Lsize=       5kB time=00:00:00.06 bitrate=
609.6kbits/s speed=4.36x
video:5kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 5.282405%
PS D:\ffmpeg\bin>



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