[FFmpeg-trac] #4164(undetermined:new): x11grab (xcb) with show_region gives (partial) static image

FFmpeg trac at avcodec.org
Sat Dec 6 18:43:50 CET 2014


#4164: x11grab (xcb) with show_region gives (partial) static image
--------------------------------+----------------------------------------
             Reporter:  DiJuMx  |                    Owner:
                 Type:  defect  |                   Status:  new
             Priority:  normal  |                Component:  undetermined
              Version:  2.5     |               Resolution:
             Keywords:  xcb     |               Blocked By:
             Blocking:          |  Reproduced by developer:  0
Analyzed by developer:  0       |
--------------------------------+----------------------------------------

Comment (by DiJuMx):

 Command and output for current git head

 {{{
 $ ffmpeg -f x11grab -s 320x240 -show_region 1 -i :0.0+100,100 -t 10 -f mp4
 capture.mkv -y
 ffmpeg version N-68264-gc149f67e9b5b Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Dec  6 2014 17:37:52 with gcc 4.9.1 (Debian 4.9.1-19)
   configuration: --prefix=/home/daniel/ffmpeg_build --extra-
 cflags=-I/home/daniel/ffmpeg_build/include --extra-
 ldflags=-L/home/daniel/ffmpeg_build/lib --bindir=/home/daniel/bin
 --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfreetype
 --enable-libmp3lame --enable-libopus --enable-libtheora --enable-libvorbis
 --enable-libvpx --enable-libx264 --enable-nonfree --enable-libxcb
 --enable-libxcb-shm --enable-libxcb-shape --enable-libpulse
   libavutil      54. 15.100 / 54. 15.100
   libavcodec     56. 14.100 / 56. 14.100
   libavformat    56. 15.102 / 56. 15.102
   libavdevice    56.  3.100 / 56.  3.100
   libavfilter     5.  2.103 /  5.  2.103
   libswscale      3.  1.101 /  3.  1.101
   libswresample   1.  1.100 /  1.  1.100
   libpostproc    53.  3.100 / 53.  3.100
 Input #0, x11grab, from ':0.0+100,100':
   Duration: N/A, start: 1417887553.610080, bitrate: N/A
     Stream #0:0: Video: rawvideo (BGRA / 0x41524742), bgra, 320x240, 29.97
 fps, 29.97 tbr, 1000k tbn, 29.97 tbc
 No pixel format specified, yuv444p for H.264 encoding chosen.
 Use -pix_fmt yuv420p for compatibility with outdated media players.
 [libx264 @ 0x39e5cc0] using cpu capabilities: MMX2 SSE2Fast LZCNT
 [libx264 @ 0x39e5cc0] profile High 4:4:4 Predictive, level 1.3, 4:4:4
 8-bit
 [libx264 @ 0x39e5cc0] 264 - core 142 r2431 a5831aa - H.264/MPEG-4 AVC
 codec - Copyleft 2003-2014 - 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=4 threads=9
 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, mp4, to 'capture.mkv':
   Metadata:
     encoder         : Lavf56.15.102
     Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021), yuv444p,
 320x240, q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc
     Metadata:
       encoder         : Lavc56.14.100 libx264
 Stream mapping:
   Stream #0:0 -> #0:0 (rawvideo (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 frame=  300 fps= 30 q=-1.0 Lsize=     288kB time=00:00:09.94 bitrate=
 237.1kbits/s dup=1 drop=0
 video:284kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 1.246728%
 [libx264 @ 0x39e5cc0] frame I:2     Avg QP:24.41  size: 13812
 [libx264 @ 0x39e5cc0] frame P:200   Avg QP:27.00  size:  1196
 [libx264 @ 0x39e5cc0] frame B:98    Avg QP:33.57  size:   241
 [libx264 @ 0x39e5cc0] consecutive B-frames: 46.3% 28.0%  7.0% 18.7%
 [libx264 @ 0x39e5cc0] mb I  I16..4: 24.3%  1.3% 74.3%
 [libx264 @ 0x39e5cc0] mb P  I16..4:  0.6%  0.4%  3.5%  P16..4:  5.0%  3.1%
 1.9%  0.0%  0.0%    skip:85.5%
 [libx264 @ 0x39e5cc0] mb B  I16..4:  0.1%  0.2%  0.3%  B16..8:  6.8%  2.2%
 0.8%  direct: 0.3%  skip:89.4%  L0:38.6% L1:58.6% BI: 2.9%
 [libx264 @ 0x39e5cc0] 8x8 transform intra:9.6% inter:11.0%
 [libx264 @ 0x39e5cc0] coded y,u,v intra: 61.9% 2.8% 4.9% inter: 3.1% 0.1%
 0.2%
 [libx264 @ 0x39e5cc0] i16 v,h,dc,p:  7% 88%  4%  1%
 [libx264 @ 0x39e5cc0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 10% 27% 61%  1%  0%
 0%  0%  0%  0%
 [libx264 @ 0x39e5cc0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 28% 28% 21%  2%  4%
 3%  5%  4%  4%
 [libx264 @ 0x39e5cc0] Weighted P-Frames: Y:0.0% UV:0.0%
 [libx264 @ 0x39e5cc0] ref P L0: 65.0% 10.2% 17.3%  7.5%
 [libx264 @ 0x39e5cc0] ref B L0: 89.6%  9.4%  1.0%
 [libx264 @ 0x39e5cc0] ref B L1: 99.2%  0.8%
 [libx264 @ 0x39e5cc0] kb/s:232.08
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4164#comment:2>
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