[FFmpeg-trac] #5921(avformat:open): Can not read mjpeg from IP camera

Sun Jan 15 21:38:13 EET 2017

#5921: Can not read mjpeg from IP camera
-------------------------------------+-------------------------------------
             Reporter:  qqqzhouhk    |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mpjpeg       |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by hackeron):

 I'm having the same issue:

 {{{
 $ ffmpeg -i 'http://admin:meinsm@192.168.100.232/cgi-
 bin/faststream.jpg?stream=full&fps=5.0&noaudio&data=v.mjpeg' -y test.mkv
 ffmpeg version N-83119-g0ba0187 Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
   configuration: --enable-libx264 --enable-libfdk_aac --enable-gpl
 --enable-nonfree --enable-shared --enable-pic --enable-openssl
   libavutil      55. 43.100 / 55. 43.100
   libavcodec     57. 72.100 / 57. 72.100
   libavformat    57. 62.100 / 57. 62.100
   libavdevice    57.  2.100 / 57.  2.100
   libavfilter     6. 69.100 /  6. 69.100
   libswscale      4.  3.101 /  4.  3.101
   libswresample   2.  4.100 /  2.  4.100
   libpostproc    54.  2.100 / 54.  2.100
 Input #0, mpjpeg, from 'http://admin:meinsm@192.168.100.232/cgi-
 bin/faststream.jpg?stream=full&fps=5.0&noaudio&data=v.mjpeg':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
 640x480 [SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
 No pixel format specified, yuvj420p for H.264 encoding chosen.
 Use -pix_fmt yuv420p for compatibility with outdated media players.
 [libx264 @ 0x20bb920] using SAR=1/1
 [libx264 @ 0x20bb920] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 [libx264 @ 0x20bb920] profile High, level 3.0
 [libx264 @ 0x20bb920] 264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft
 2003-2016 - http://www.videolan.org/x264.html - options: cabac=1 ref=3
 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00
 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0
 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=3
 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1
 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 Output #0, matroska, to 'test.mkv':
   Metadata:
     encoder         : Lavf57.62.100
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuvj420p(pc),
 640x480 [SAR 1:1 DAR 4:3], q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc57.72.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [mpjpeg @ 0x20b60e0] Expected boundary '--' not found, instead found a
 line of 39 bytes
 http://admin:meinsm@192.168.100.232/cgi-
 bin/faststream.jpg?stream=full&fps=5.0&noaudio&data=v.mjpeg: Invalid data
 found when processing input
 frame=    2 fps=0.7 q=-1.0 Lsize=      64kB time=00:00:00.04
 bitrate=12706.7kbits/s speed=0.0153x
 video:63kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 1.235873%
 [libx264 @ 0x20bb920] frame I:1     Avg QP:29.30  size: 57648
 [libx264 @ 0x20bb920] frame P:1     Avg QP:31.82  size:  6004
 [libx264 @ 0x20bb920] mb I  I16..4:  0.7% 98.2%  1.1%
 [libx264 @ 0x20bb920] mb P  I16..4:  0.0%  8.3%  0.0%  P16..4:  1.7%  1.8%
 0.5%  0.0%  0.0%    skip:87.8%
 [libx264 @ 0x20bb920] 8x8 transform intra:98.4% inter:93.5%
 [libx264 @ 0x20bb920] coded y,uvDC,uvAC intra: 99.7% 2.5% 2.4% inter: 3.9%
 0.1% 0.0%
 [libx264 @ 0x20bb920] i16 v,h,dc,p: 100%  0%  0%  0%
 [libx264 @ 0x20bb920] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu:  7% 32% 39%  3%  2%
 2%  4%  3%  7%
 [libx264 @ 0x20bb920] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 17% 29%  4%  3%
 3%  4%  5%  7%
 [libx264 @ 0x20bb920] i8c dc,h,v,p: 98%  1%  1%  0%
 [libx264 @ 0x20bb920] Weighted P-Frames: Y:0.0% UV:0.0%
 [libx264 @ 0x20bb920] kb/s:6365.20
 $
 }}}

 I cannot use the -f mjpeg workaround because I'm using ffmpeg through
 openCV where there is no option to pass this parameter.

 Any ideas?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5921#comment:13>
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