[FFmpeg-trac] #1450(undetermined:new): ffmpeg does not terminate after end of input (asyncts used)

FFmpeg trac at avcodec.org
Fri Jun 15 13:27:59 CEST 2012


#1450: ffmpeg does not terminate after end of input (asyncts used)
-------------------------------------+-------------------------------------
             Reporter:  lvm          |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  libfaac,     |               Blocked By:
  asyncts                            |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Hello.

 I have an issue when using "asyncts" audio filter:

 ffmpeg command line
 {{{
 ffmpeg -i /tmp/flv.flv -vn -af asyncts=compensate=1 -acodec libfaac -f
 mpegts -y /tmp/xxx.ts
 }}}

 {{{
 ffmpeg -i /tmp/flv.flv -vn -af asyncts=compensate=1 -acodec libfaac -f
 mpegts -y /tmp/xxx.ts
 ffmpeg version 0.11 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jan 19 2012 07:34:53 with gcc 4.6.2
   configuration: --shlibdir=/usr/lib64 --prefix=/usr
 --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
 static --enable-debug --disable-stripping --extra-cflags='-O2 -g -m64
 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
 -fasynchronous-unwind-tables -fPIC -I/usr/include/gsm' --enable-gpl
 --enable-x11grab --enable-version3 --enable-pthreads --enable-libfaac
 --enable-nonfree --enable-avfilter --enable-libpulse --enable-libvpx
 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-
 libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger
 --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, flv, from '/tmp/flv.flv':
   Metadata:
     encoder         : Lavf54.6.100
   Duration: 00:03:46.82, start: 0.000000, bitrate: 3265 kb/s
     Stream #0:0: Video: flv1, yuv420p, 1280x720, 200 kb/s, 50 tbr, 1k tbn,
 1k tbc
     Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 [AVAudioResampleContext @ 0x64d4c0] Using s16p as internal sample format
 [mpegts @ 0x62db60] muxrate VBR, pcr every 4 pkts, sdt every 200, pat/pmt
 every 40 pkts
 Output #0, mpegts, to '/tmp/xxx.ts':
   Metadata:
     encoder         : Lavf54.6.100
     Stream #0:0: Audio: aac, 44100 Hz, stereo, s16, 128 kb/s
 Stream mapping:
   Stream #0:1 -> #0:0 (mp3 -> libfaac)
 Press [q] to stop, [?] for help
 Error in av_buffersink_get_buffer_ref(): Invalid argument
 size=    1612kB time=00:01:31.92 bitrate= 143.7kbits/s

 }}}

 Everything seems to be OK until source runs out of data (EOF and
 connnection close are tested) or user decides to abort ffmpeg execution
 (hits ctrl+c).
 In both cases ffmpeg does not terminate and starts to produce huge amount
 of messages (thousands per second) to stderr:

 {{{
 ...
 [mpegts @ 0x62db60] Audio timestamp 20310724 < 20313155 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 [mpegts @ 0x62db60] Audio timestamp 20310720 < 20313156 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 [mpegts @ 0x62db60] Audio timestamp 20310716 < 20313157 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 [mpegts @ 0x62db60] Audio timestamp 20310712 < 20313158 invalid, cliping
 [mpegts @ 0x62db60] Audio timestamp 20310708 < 20313159 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 [mpegts @ 0x62db60] Audio timestamp 20310704 < 20313160 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 [mpegts @ 0x62db60] Audio timestamp 20310700 < 20313161 invalid, cliping
 [libfaac @ 0x62e320] Que input is backward in time
 ...
 }}}

 until kill or ctrl+c is issued by user.

 Problem occurs only when asyncts filter is used:
 {{{
 # ffmpeg -i /tmp/flv.flv -vn -acodec libfaac -f mpegts -y /tmp/xxx.ts
 ffmpeg version 0.11 Copyright (c) 2000-2012 the FFmpeg developers
   built on Jan 19 2012 07:34:53 with gcc 4.6.2
   configuration: --shlibdir=/usr/lib64 --prefix=/usr
 --mandir=/usr/share/man --libdir=/usr/lib64 --enable-shared --disable-
 static --enable-debug --disable-stripping --extra-cflags='-O2 -g -m64
 -fmessage-length=0 -D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
 -fasynchronous-unwind-tables -fPIC -I/usr/include/gsm' --enable-gpl
 --enable-x11grab --enable-version3 --enable-pthreads --enable-libfaac
 --enable-nonfree --enable-avfilter --enable-libpulse --enable-libvpx
 --enable-libmp3lame --enable-libvorbis --enable-libtheora --enable-
 libspeex --enable-libxvid --enable-libx264 --enable-libschroedinger
 --enable-libgsm --enable-libopencore-amrnb --enable-libopencore-amrwb
 --enable-postproc --enable-libdc1394 --enable-librtmp --enable-libfreetype
   libavutil      51. 54.100 / 51. 54.100
   libavcodec     54. 23.100 / 54. 23.100
   libavformat    54.  6.100 / 54.  6.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     2. 77.100 /  2. 77.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 Input #0, flv, from '/tmp/flv.flv':
   Metadata:
     encoder         : Lavf54.6.100
   Duration: 00:03:46.82, start: 0.000000, bitrate: 3265 kb/s
     Stream #0:0: Video: flv1, yuv420p, 1280x720, 200 kb/s, 50 tbr, 1k tbn,
 1k tbc
     Stream #0:1: Audio: mp3, 44100 Hz, stereo, s16, 128 kb/s
 [mpegts @ 0x62db60] muxrate VBR, pcr every 4 pkts, sdt every 200, pat/pmt
 every 40 pkts
 Output #0, mpegts, to '/tmp/xxx.ts':
   Metadata:
     encoder         : Lavf54.6.100
     Stream #0:0: Audio: aac, 44100 Hz, stereo, s16, 128 kb/s
 Stream mapping:
   Stream #0:1 -> #0:0 (mp3 -> libfaac)
 Press [q] to stop, [?] for help
 size=    3964kB time=00:03:45.74 bitrate= 143.8kbits/s
 video:0kB audio:3526kB global headers:0kB muxing overhead 12.399394%
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1450>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker


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