[FFmpeg-trac] #5502(undetermined:new): wmv3 video track produced by GoToMeeting is transcoded to 1000 FPS h264

FFmpeg trac at avcodec.org
Mon May 2 23:39:25 CEST 2016


#5502: wmv3 video track produced by GoToMeeting is transcoded to 1000 FPS h264
-------------------------------------+-------------------------------------
             Reporter:  almson       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by almson):

 ./ffmpeg-git-20160430-64bit-static/ffmpeg -i gotomeeting_screencapture.wmv
 -vcodec h264 -preset veryfast -acodec mp3 -f mp4 -y output.mp4
 ffmpeg version N-79691-g66dd21d-static http://johnvansickle.com/ffmpeg/
 Copyright (c) 2000-2016 the FFmpeg developers
   built with gcc 5.3.1 (Debian 5.3.1-16) 20160424
   configuration: --enable-gpl --enable-version3 --enable-static --disable-
 debug --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-
 libwebp --enable-libspeex --enable-libvorbis --enable-libvpx --enable-
 libfreetype --enable-fontconfig --enable-libxvid --enable-libopencore-
 amrnb --enable-libopencore-amrwb --enable-libtheora --enable-libvo-
 amrwbenc --enable-gray --enable-libopenjpeg --enable-libopus --enable-
 libass --enable-gnutls --enable-libvidstab --enable-libsoxr --enable-
 frei0r --enable-libfribidi --disable-indev=sndio --disable-outdev=sndio
 --enable-librtmp --enable-libmfx --enable-libzimg --cc=gcc
   libavutil      55. 23.100 / 55. 23.100
   libavcodec     57. 38.100 / 57. 38.100
   libavformat    57. 34.103 / 57. 34.103
   libavdevice    57.  0.101 / 57.  0.101
   libavfilter     6. 44.100 /  6. 44.100
   libswscale      4.  1.100 /  4.  1.100
   libswresample   2.  0.101 /  2.  0.101
   libpostproc    54.  0.100 / 54.  0.100
 [wmv3 @ 0x584d520] Extra data: 8 bits left, value: 20
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, asf, from 'gotomeeting_screencapture.wmv':
   Metadata:
     WMFSDKNeeded    : 0.0.0.0000
     DeviceConformanceTemplate: MP at HL
     WMFSDKVersion   : 12.0.10011.16384
     IsVBR           : 1
     VBR Peak        : 5688576
     Buffer Average  : 325
     WM/ToolVersion  : 7.16.0 Build 4800
     WM/ToolName     : GoToMeeting
     BitRateFrom the writer: 345055
     Audio samples   : 282
     Video samples   : 33
     recording time  : Mon, 02 May 2016 16:02:39 Eastern Daylight Time
   Duration: 00:00:26.83, start: 0.000000, bitrate: 335 kb/s
     Stream #0:0: Audio: wmav2 (a[1][0][0] / 0x0161), 44100 Hz, 1 channels,
 fltp, 48 kb/s
     Stream #0:1: Video: wmv3 (Main) (WMV3 / 0x33564D57), yuv420p,
 1920x1080, 6849 kb/s, 1k tbr, 1k tbn
 [wmv3 @ 0x587b9c0] Extra data: 8 bits left, value: 20
 [libx264 @ 0x584f2c0] MB rate (8160000) > level limit (2073600)
 [libx264 @ 0x584f2c0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 AVX FMA3 AVX2 LZCNT BMI2
 [libx264 @ 0x584f2c0] profile High, level 5.2
 [libx264 @ 0x584f2c0] 264 - core 148 r265 3b70645 - H.264/MPEG-4 AVC codec
 - Copyleft 2003-2016 - http://www.videolan.org/x264.html - options:
 cabac=1 ref=1 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=2 psy=1
 psy_rd=1.00:0.00 mixed_ref=0 me_range=16 chroma_me=1 trellis=0 8x8dct=1
 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=0 threads=12
 lookahead_threads=4 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=1 keyint=250 keyint_min=25
 scenecut=40 intra_refresh=0 rc_lookahead=10 rc=crf mbtree=1 crf=23.0
 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
 [mp4 @ 0x584dd20] Using AVStream.codec to pass codec parameters to muxers
 is deprecated, use AVStream.codecpar instead.
     Last message repeated 1 times
 Output #0, mp4, to 'output.mp4':
   Metadata:
     WMFSDKNeeded    : 0.0.0.0000
     DeviceConformanceTemplate: MP at HL
     WMFSDKVersion   : 12.0.10011.16384
     IsVBR           : 1
     VBR Peak        : 5688576
     Buffer Average  : 325
     WM/ToolVersion  : 7.16.0 Build 4800
     WM/ToolName     : GoToMeeting
     BitRateFrom the writer: 345055
     Audio samples   : 282
     Video samples   : 33
     recording time  : Mon, 02 May 2016 16:02:39 Eastern Daylight Time
     encoder         : Lavf57.34.103
     Stream #0:0: Video: h264 ([33][0][0][0] / 0x0021), yuv420p, 1920x1080,
 q=2-31, 1k fps, 16k tbn
     Metadata:
       encoder         : Lavc57.38.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
     Stream #0:1: Audio: mp3 (i[0][0][0] / 0x0069), 44100 Hz, mono, fltp
     Metadata:
       encoder         : Lavc57.38.100 libmp3lame
 Stream mapping:
   Stream #0:1 -> #0:0 (wmv3 (native) -> h264 (libx264))
   Stream #0:0 -> #0:1 (wmav2 (native) -> mp3 (libmp3lame))
 Press [q] to stop, [?] for help
 [libmp3lame @ 0x5853560] Queue input is backward in time
 [mp4 @ 0x584dd20] Non-monotonous DTS in output stream 0:1; previous:
 16175, current: 15276; changing to 16176. This may result in incorrect
 timestamps in the output file.
 frame=25679 fps=292 q=-1.0 Lsize=   10256kB time=00:00:26.10
 bitrate=3218.9kbits/s dup=25824 drop=0 speed=0.296x
 video:9736kB audio:204kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 3.181873%
 [libx264 @ 0x584f2c0] frame I:105   Avg QP:15.32  size: 75963
 [libx264 @ 0x584f2c0] frame P:6469  Avg QP:20.18  size:   105
 [libx264 @ 0x584f2c0] frame B:19105 Avg QP:23.49  size:    69
 [libx264 @ 0x584f2c0] consecutive B-frames:  0.8%  0.0%  0.1% 99.1%
 [libx264 @ 0x584f2c0] mb I  I16..4: 67.0% 21.1% 12.0%
 [libx264 @ 0x584f2c0] mb P  I16..4:  0.1%  0.0%  0.0%  P16..4:  0.0%  0.0%
 0.0%  0.0%  0.0%    skip:99.9%
 [libx264 @ 0x584f2c0] mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.0%  0.0%
 0.0%  direct: 0.0%  skip:100.0%  L0:67.0% L1:32.9% BI: 0.1%
 [libx264 @ 0x584f2c0] 8x8 transform intra:21.0% inter:67.3%
 [libx264 @ 0x584f2c0] coded y,uvDC,uvAC intra: 20.5% 23.2% 11.8% inter:
 0.0% 0.0% 0.0%
 [libx264 @ 0x584f2c0] i16 v,h,dc,p: 79% 18%  3%  0%
 [libx264 @ 0x584f2c0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 37% 29%  3%  0%
 0%  1%  1%  3%
 [libx264 @ 0x584f2c0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 28% 15%  4%  4%
 4%  5%  4%  9%
 [libx264 @ 0x584f2c0] i8c dc,h,v,p: 71% 19%  8%  2%
 [libx264 @ 0x584f2c0] Weighted P-Frames: Y:0.0% UV:0.0%
 [libx264 @ 0x584f2c0] kb/s:3105.62

--
Ticket URL: <https://trac.ffmpeg.org/ticket/5502#comment:2>
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