[FFmpeg-trac] #3859(undetermined:new): mp4: start_time never zero

[FFmpeg]

#3859: mp4: start_time never zero
-------------------------------------+-------------------------------------
             Reporter:  blacktrash   |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by blacktrash):

 Ugly workaround for libfdk_aac HE:
 {{{
 $ ffmpeg -v quiet -i BigBuckBunny_640x360.m4v -af atrim=start=0.114694
 -c:a libfdk_aac -profile:a aac_he -b:a 64
 k test.mp4
 $ ffprobe -v quiet -show_entries format=start_time,duration test.mp4
 [FORMAT]
 start_time=0.000000
 duration=596.500000
 [/FORMAT]
 $ ffprobe -v quiet -show_entries stream=start_time,duration test.mp4
 [STREAM]
 start_time=0.000000
 duration=596.500000
 [/STREAM]
 [STREAM]
 start_time=0.000000
 duration=596.474195
 [/STREAM]
 $ ffmpeg -version
 ffmpeg version N-66240-g4a203b7 Copyright (c) 2000-2014 the FFmpeg
 developers
 built on Sep 11 2014 17:08:14 with Apple LLVM version 5.1 (clang-503.0.40)
 (based on LLVM 3.4svn)
 configuration: --enable-gpl --enable-version3 --enable-nonfree --disable-
 ffserver --enable-shared --enable-libfdk-aac --enable-libx265 --enable-
 libx264 --enable-libxvid --enable-libfaac --enable-libmp3lame --enable-
 libtheora --enable-libvorbis --enable-libvpx --enable-libvidstab --extra-
 cflags=-I/sw/include --extra-libs=-L/sw/lib
 libavutil      54.  7.100 / 54.  7.100
 libavcodec     56.  1.100 / 56.  1.100
 libavformat    56.  4.101 / 56.  4.101
 libavdevice    56.  0.100 / 56.  0.100
 libavfilter     5.  1.100 /  5.  1.100
 libswscale      3.  0.100 /  3.  0.100
 libswresample   1.  1.100 /  1.  1.100
 libpostproc    53.  0.100 / 53.  0.100
 }}}

 But that feels wrong and risky.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3859#comment:7>
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