Changes between Initial Version and Version 1 of Ticket #9524


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Timestamp:
Nov 22, 2021, 3:51:49 PM (5 years ago)
Author:
rotemc
Comment:

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  • Ticket #9524

    • Property Keywords framerate added

  • Ticket #9524 – Description

    initial v1  
    11Summary of the bug:
     2-------------------
    23It seems that concatenation command for videos with different frame rates gets into endless loop of duplicating frames.
     4
    35Debug tracing for example:
     6--------------------------
    47cur_dts is invalid st:0 (0) [init:1 i_done:0 finish:0] (this is harmless if it occurs once at the start per stream)
    58    Last message repeated 2 times
    … …  
    1013
    1114How to reproduce:
     15-----------------
    1216{{{
    1317% /opt/ffmpeg-4.4.1/bin/ffmpeg -loglevel debug -y -timelimit 2880 -i spec/videos/first.mp4 -i spec/videos/second.mp4 -sws_flags lanczos -filter_complex "[0:v]null[j1] ; [0:a]anull[a1] ; [1:v]null[j2] ; [1:a]anull[a2] ; [j1][a1][j2][a2]concat=n=2:a=1:v=1[v9][a3]" -codec:v libx264 -map '[v9]' -map '[a3]' -start_at_zero public/test.mp4
    … …  
    1519built on Ubuntu/mac
    1620}}}
    17 Patches should be submitted to the ffmpeg-devel mailing list and not this bug tracker.