[FFmpeg-trac] #6424(avfilter:closed): endless loop in avfilter.c

Thu Jun 22 15:21:37 EEST 2017

#6424: endless loop in avfilter.c
-------------------------------------+-------------------------------------
             Reporter:  tinybug      |                    Owner:
                 Type:  defect       |                   Status:  closed
             Priority:  important    |                Component:  avfilter
              Version:  git-master   |               Resolution:  fixed
             Keywords:  deadlock     |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by friday):

 Verbose only seems to add details about libx264.
 {{{
 ffmpeg -y -i Fox\ and\ the\ cat\ 2015.mp4 -i grimmsfairytales_44_grimm.ogg
 -filter_complex amix=inputs=2:duration=first:dropout_transition=2 amix.mp4
 -loglevel verbose
 ffmpeg version N-86566-g067e42b Copyright (c) 2000-2017 the FFmpeg
 developers
   built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.4) 20160609
   configuration: --extra-libs=-ldl --enable-gpl --enable-libass --enable-
 libfdk-aac --enable-libmp3lame --enable-libopus --enable-libtheora
 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree
 --enable-debug
   libavutil      55. 66.100 / 55. 66.100
   libavcodec     57. 99.100 / 57. 99.100
   libavformat    57. 73.100 / 57. 73.100
   libavdevice    57.  7.100 / 57.  7.100
   libavfilter     6. 94.100 /  6. 94.100
   libswscale      4.  7.101 /  4.  7.101
   libswresample   2.  8.100 /  2.  8.100
   libpostproc    54.  6.100 / 54.  6.100
 [h264 @ 0x4117520] Reinit context to 1280x720, pix_fmt: yuv420p
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Fox and the cat 2015.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     creation_time   : 2016-08-20T14:56:53.000000Z
   Duration: 00:01:04.34, start: 0.000000, bitrate: 1925 kb/s
     Stream #0:0(und): Video: h264 (Main), 1 reference frame (avc1 /
 0x31637661), yuv420p(left), 1280x720 [SAR 1:1 DAR 16:9], 1797 kb/s, 25
 fps, 25 tbr, 90k tbn, 50 tbc (default)
     Metadata:
       creation_time   : 2016-08-20T14:56:53.000000Z
       handler_name    : ISO Media file produced by Google Inc.
     Stream #0:1(und): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 125 kb/s (default)
     Metadata:
       creation_time   : 2016-08-20T14:56:53.000000Z
       handler_name    : ISO Media file produced by Google Inc.
 Input #1, ogg, from 'grimmsfairytales_44_grimm.ogg':
   Duration: 00:02:21.58, start: 0.000000, bitrate: 70 kb/s
     Stream #1:0: Audio: vorbis, 44100 Hz, stereo, fltp, 96 kb/s
     Metadata:
       ARTIST          : Jacob and Wilhelm Grimm
       GENRE           : Speech
       ENGINEER        : Robert Neufeld
       TITLE           : 44 - The Fox and the Cat
       ALBUM           : Grimm's Fairy Tales
       track           : 44
       DATE            : 2012-02-02
       ENCODER         : Lavf53.18.0
       COMMENT         :
 http://www.archive.org/details/grimm_fairy_tales_1202_librivox
 Stream mapping:
   Stream #0:1 (aac) -> amix:input0 (graph 0)
   Stream #1:0 (vorbis) -> amix:input1 (graph 0)
   amix (graph 0) -> Stream #0:0 (aac)
   Stream #0:0 -> #0:1 (h264 (native) -> h264 (libx264))
 Press [q] to stop, [?] for help
 [h264 @ 0x41361e0] Reinit context to 1280x720, pix_fmt: yuv420p
 [graph 1 input from stream 0:0 @ 0x4373780] w:1280 h:720 pixfmt:yuv420p
 tb:1/90000 fr:25/1 sar:1/1 sws_param:flags=2
 [libx264 @ 0x4138780] using SAR=1/1
 [libx264 @ 0x4138780] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2
 AVX
 [libx264 @ 0x4138780] profile High, level 3.1
 [libx264 @ 0x4138780] 264 - core 150 - H.264/MPEG-4 AVC codec - Copyleft
 2003-2017 - 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=1
 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
 [graph_0_in_0_1 @ 0x41d79a0] tb:1/44100 samplefmt:fltp samplerate:44100
 chlayout:0x3
 [graph_0_in_1_0 @ 0x41ccf80] tb:1/44100 samplefmt:fltp samplerate:44100
 chlayout:0x3
 [Parsed_amix_0 @ 0x51c8800] inputs:2 fmt:fltp srate:44100 cl:stereo
 Output #0, mp4, to 'amix.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: isommp42
     encoder         : Lavf57.73.100
     Stream #0:0: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz,
 stereo, fltp, delay 1024, 128 kb/s (default)
     Metadata:
       encoder         : Lavc57.99.100 aac
     Stream #0:1(und): Video: h264 (libx264), 1 reference frame
 ([33][0][0][0] / 0x0021), yuv420p(progressive, left), 1280x720 [SAR 1:1
 DAR 16:9], q=-1--1, 25 fps, 12800 tbn, 25 tbc (default)
     Metadata:
       creation_time   : 2016-08-20T14:56:53.000000Z
       handler_name    : ISO Media file produced by Google Inc.
       encoder         : Lavc57.99.100 libx264
     Side data:
       cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
 frame= 1608 fps=9.2 q=28.0 size=   13520kB time=00:01:02.57
 bitrate=1769.9kbits/s speed=0.359x
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/6424#comment:15>
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