[FFmpeg-trac] #5023(ffmpeg:new): Can no longer read mjpeg from Mobotix camera

[FFmpeg]

#5023: Can no longer read mjpeg from Mobotix camera
------------------------------------+--------------------------------------
             Reporter:  hackeron    |                     Type:  defect
               Status:  new         |                 Priority:  critical
            Component:  ffmpeg      |                  Version:  git-master
             Keywords:  regression  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+--------------------------------------
 Summary of the bug: Older version of ffmpeg can read mjpeg stream from a
 Mobotix IP camera without issues. The latest version from git cannot.

 How to reproduce:
 {{{
 % ffmpeg -i 'http://192.168.100.233/cgi-bin/faststream.jpg?noaudio' -y
 test.mkv
 }}}

 In version: N-69470-g36adfa3 (2015-02-01 22:53:38) - this command records
 the stream without any issues.

 In version: git-2015-11-18-518742b I see the following:

 {{{
 $ ffmpeg -i 'http://192.168.100.233/cgi-bin/faststream.jpg?noaudio' -y
 test.mkv
 ffmpeg version git-2015-11-18-518742b Copyright (c) 2000-2015 the FFmpeg
 developers
   built with gcc 5.2.1 (Ubuntu 5.2.1-22ubuntu2) 20151010
   configuration: --enable-libx264 --enable-libfdk_aac --enable-gpl
 --enable-nonfree --enable-shared --enable-pic
   libavutil      55.  6.100 / 55.  6.100
   libavcodec     57. 15.100 / 57. 15.100
   libavformat    57. 15.100 / 57. 15.100
   libavdevice    57.  0.100 / 57.  0.100
   libavfilter     6. 15.100 /  6. 15.100
   libswscale      4.  0.100 /  4.  0.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 [mjpeg @ 0xeaa000] Changeing bps to 8
 Input #0, mpjpeg, from 'http://192.168.100.233/cgi-
 bin/faststream.jpg?noaudio':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
 1280x480 [SAR 1:1 DAR 8:3], 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 Use -pix_fmt yuv420p for compatibility with outdated media players.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 @ 0xeacfe0] using SAR=1/1
 [libx264 @ 0xeacfe0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 [libx264 @ 0xeacfe0] profile High, level 3.1
 [libx264 @ 0xeacfe0] 264 - core 148 r2 7599210 - H.264/MPEG-4 AVC codec -
 Copyleft 2003-2015 - 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         : Lavf57.15.100
     Stream #0:0: Video: h264 (libx264) (H264 / 0x34363248), yuvj420p(pc),
 1280x480 [SAR 1:1 DAR 8:3], q=-1--1, 25 fps, 1k tbn, 25 tbc
     Metadata:
       encoder         : Lavc57.15.100 libx264
 Stream mapping:
   Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 http://192.168.100.233/cgi-bin/faststream.jpg?noaudio: Invalid data found
 when processing input
 frame=    1 fps=0.0 q=28.0 Lsize=      95kB time=00:00:00.04
 bitrate=19481.6kbits/s
 video:94kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.785316%
 [libx264 @ 0xeacfe0] frame I:1     Avg QP:30.73  size: 95963
 [libx264 @ 0xeacfe0] mb I  I16..4:  2.2% 92.9%  4.9%
 [libx264 @ 0xeacfe0] 8x8 transform intra:92.9%
 [libx264 @ 0xeacfe0] coded y,uvDC,uvAC intra: 91.8% 74.8% 30.4%
 [libx264 @ 0xeacfe0] i16 v,h,dc,p: 25% 35%  6% 35%
 [libx264 @ 0xeacfe0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 12% 14% 26%  6%  7%
 9%  9%  7% 10%
 [libx264 @ 0xeacfe0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 23% 13% 16%  6%  7%
 15%  7%  6%  8%
 [libx264 @ 0xeacfe0] i8c dc,h,v,p: 56% 23% 17%  3%
 [libx264 @ 0xeacfe0] kb/s:19192.60
 }}}

 Any ideas?

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5023>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker