[FFmpeg-trac] #9160(ffmpeg:new): ffmpeg stuck at initialization

FFmpeg trac at avcodec.org
Sun Apr 11 22:53:21 EEST 2021


#9160: ffmpeg stuck at initialization
------------------------------------+----------------------------------
             Reporter:  Gyan        |                    Owner:
                 Type:  defect      |                   Status:  new
             Priority:  important   |                Component:  ffmpeg
              Version:  git-master  |               Resolution:
             Keywords:  regression  |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  0           |
------------------------------------+----------------------------------

Comment (by JEEB):

 Used gdb with `gdb --pid="$(pgrep ffmpeg)"`, and just the first point
 where I find it located is in trying to pick which output stream to
 process:


 {{{
 #2  av_log (avcl=avcl at entry=0x0, level=<optimized out>, level at entry=48,
     fmt=0x1431fee "cur_dts is invalid st:%d (%d) [init:%d i_done:%d
 finish:%d] (this is harmless if it occurs once at the start per
 stream)\n")
     at src/libavutil/log.c:411
         vl = {{gp_offset = 24, fp_offset = 48, overflow_arg_area =
 0x7ffc9694a940, reg_save_area = 0x7ffc9694a880}}
 #3  0x00000000004aab21 in choose_output () at src/fftools/ffmpeg.c:3956
         ost = 0x3942f00
         opts = <optimized out>
         opts_min = 9223372036854775807
         ost_min = 0x0
         i = 0
         ost = <optimized out>
         opts = <optimized out>
 #4  transcode_step () at src/fftools/ffmpeg.c:4686
         ist = 0x0
         ost = <optimized out>
         ret = <optimized out>
         i = <optimized out>
         ifilter = <optimized out>
 #5  transcode () at src/fftools/ffmpeg.c:4808
         cur_time = <optimized out>
         total_packets_written = 0
         ret = <optimized out>
         timer_start = <optimized out>
         i = <optimized out>
         ist = <optimized out>
         os = <optimized out>
         ost = <optimized out>
 #6  0x00000000004a9425 in main (argc=<optimized out>, argv=<optimized
 out>) at src/fftools/ffmpeg.c:5013
         ret = <optimized out>
         i = <optimized out>
         ti = {real_usec = 195896914413, user_usec = 6420, sys_usec = 6391}
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/9160#comment:6>
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