[FFmpeg-trac] #8032(avfilter:reopened): libavfilter/af_adelay.c: one delay-string for all channels

[FFmpeg]

#8032: libavfilter/af_adelay.c: one delay-string for all channels
-------------------------------------+------------------------------------
             Reporter:  CoRoNe       |                    Owner:
                 Type:  enhancement  |                   Status:  reopened
             Priority:  normal       |                Component:  avfilter
              Version:  git-master   |               Resolution:
             Keywords:  adelay       |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+------------------------------------
Changes (by CoRoNe):

 * status:  closed => reopened
 * resolution:  fixed =>


Comment:

 Thanks, but having just tested your patch, I believe there's something
 seriously wrong with it.
 Please download '[https://rwijnsma.home.xs4all.nl/files/test/FFmpeg-trac-
 8032_SIBERIA.7z FFmpeg-trac-8032_SIBERIA.7z]' and test the original
 command

 {{{
 ffmpeg -i SIBERIAE1.WAV -i SIBERIAE2.WAV -i SIBERIAE3.WAV -i SIBERIAE4.WAV
 -i SIBERIAE5.WAV -i SIBERIAE6.WAV -i SIBERIAE7.WAV -i SIBERIAE8.WAV -i
 SIBERIAE9.WAV -i SIBERIAE10.WAV -i SIBERIAE11.WAV -i SIBERIAE12.WAV -i
 SIBERIAE13.WAV -i SIBERIAE14.WAV -i SIBERIAE15.WAV -i SIBERIAE16.WAV -i
 SIBERIAE17.WAV -i SIBERIAE18.WAV -i SIBERIAE19.WAV -i SIBERIAE20.WAV -i
 SIBERIAE21.WAV -i SIBERIAE22.WAV -i SIBERIAE23.WAV -i SIBERIAE24.WAV -i
 SIBERIAE25.WAV -i SIBERIAE26.WAV -i SIBERIAE27.WAV -i SIBERIAE28.WAV -i
 SIBERIAE29.WAV -lavfi
 "[1]adelay=158792S|158792S[E2];[2]adelay=291139S|291139S[E3];[3]adelay=423476S|423476S[E4];[4]adelay=555820S|555820S[E5];[5]adelay=714633S|714633S[E6];[6]adelay=873439S|873439S[E7];[7]adelay=1058736S|1058736S[E8];[8]adelay=1244019S|1244019S[E9];[9]adelay=1376339S|1376339S[E10];[10]adelay=1508682S|1508682S[E11];[11]adelay=1667496S|1667496S[E12];[12]adelay=1826306S|1826306S[E13];[13]adelay=1932181S|1932181S[E14];[14]adelay=2118076S|2118076S[E15];[15]adelay=2255399S|2255399S[E16];[16]adelay=2364348S|2364348S[E17];[17]adelay=2499655S|2499655S[E18];[18]adelay=2587883S|2587883S[E19];[19]adelay=2720226S|2720226S[E20];[20]adelay=2852568S|2852568S[E21];[21]adelay=2984913S|2984913S[E22];[22]adelay=3073138S|3073138S[E23];[23]adelay=3161367S|3161367S[E24];[24]adelay=3249594S|3249594S[E25];[25]adelay=3336742S|3336742S[E26];[26]adelay=3421112S|3421112S[E27];[27]adelay=3576621S|3576621S[E28];[28]adelay=3788369S|3788369S[E29];[0][E2][E3][E4][E5][E6][E7][E8][E9][E10][E11][E12][E13][E14][E15][E16][E1
 7][E18][E19][E20][E21][E22][E23][E24][E25][E26][E27][E28][E29]amix=inputs=29:dropout_transition=90.742,volume=87"
 -f wav - | ffplay -i -
 }}}
 compared to the new one

 {{{
 ffmpeg -i SIBERIAE1.WAV -i SIBERIAE2.WAV -i SIBERIAE3.WAV -i SIBERIAE4.WAV
 -i SIBERIAE5.WAV -i SIBERIAE6.WAV -i SIBERIAE7.WAV -i SIBERIAE8.WAV -i
 SIBERIAE9.WAV -i SIBERIAE10.WAV -i SIBERIAE11.WAV -i SIBERIAE12.WAV -i
 SIBERIAE13.WAV -i SIBERIAE14.WAV -i SIBERIAE15.WAV -i SIBERIAE16.WAV -i
 SIBERIAE17.WAV -i SIBERIAE18.WAV -i SIBERIAE19.WAV -i SIBERIAE20.WAV -i
 SIBERIAE21.WAV -i SIBERIAE22.WAV -i SIBERIAE23.WAV -i SIBERIAE24.WAV -i
 SIBERIAE25.WAV -i SIBERIAE26.WAV -i SIBERIAE27.WAV -i SIBERIAE28.WAV -i
 SIBERIAE29.WAV -lavfi
 "[1]adelay=delays=158792S:all=1[E2];[2]adelay=delays=291139S:all=1[E3];[3]adelay=delays=423476S:all=1[E4];[4]adelay=delays=555820S:all=1[E5];[5]adelay=delays=714633S:all=1[E6];[6]adelay=delays=873439S:all=1[E7];[7]adelay=delays=1058736S:all=1[E8];[8]adelay=delays=1244019S:all=1[E9];[9]adelay=delays=1376339S:all=1[E10];[10]adelay=delays=1508682S:all=1[E11];[11]adelay=delays=1667496S:all=1[E12];[12]adelay=delays=1826306S:all=1[E13];[13]adelay=delays=1932181S:all=1[E14];[14]adelay=delays=2118076S:all=1[E15];[15]adelay=delays=2255399S:all=1[E16];[16]adelay=delays=2364348S:all=1[E17];[17]adelay=delays=2499655S:all=1[E18];[18]adelay=delays=2587883S:all=1[E19];[19]adelay=delays=2720226S:all=1[E20];[20]adelay=delays=2852568S:all=1[E21];[21]adelay=delays=2984913S:all=1[E22];[22]adelay=delays=3073138S:all=1[E23];[23]adelay=delays=3161367S:all=1[E24];[24]adelay=delays=3249594S:all=1[E25];[25]adelay=delays=3336742S:all=1[E26];[26]adelay=delays=3421112S:all=1[E27];[27]adelay=delays=3576621S:all=
 1[E28];[28]adelay=delays=3788369S:all=1[E29];[0][E2][E3][E4][E5][E6][E7][E8][E9][E10][E11][E12][E13][E14][E15][E16][E17][E18][E19][E20][E21][E22][E23][E24][E25][E26][E27][E28][E29]amix=inputs=29:dropout_transition=90.742,volume=87"
 -f wav - | ffplay -i -
 }}}

 With the new command it sounds like that from the start all inputs are
 played simultaneously. After that (±10sec) the entire mix does continue
 (so the delays are working), but only the left channel.

 As a side note: The new command itself is actually longer (118 characters
 to be exact). This is rather the opposite from what I intended.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8032#comment:4>
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