[FFmpeg-trac] #7705(undetermined:reopened): Cut mp4 file has no audio stream

[FFmpeg]

#7705: Cut mp4 file has no audio stream
-------------------------------------+-------------------------------------
             Reporter:  apait        |                    Owner:
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by apait):

 Replying to [ticket:7705 apait]:
 > Summary of the bug:
 > How to reproduce:
 > {{{
 > % ffmpeg.exe -ss 00:00:49.598 -i mp4noaudiostream.mp4 -t 00:00:28.163
 -c:v copy -c:a copy output.m4v
 > ffmpeg version 4.1
 > built with gcc 8.2.1 (GCC) 20181017
 > }}}

 C:\ffmpeg-4.1\bin>ffmpeg.exe -ss 00:00:49.598 -i mp4noaudiostream.mp4 -t
 00:00:28.163 -c:v copy -c:a copy output.m4v
 ffmpeg version 4.1 Copyright (c) 2000-2018 the FFmpeg developers
   built with gcc 8.2.1 (GCC) 20181017
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libbluray --enable-libfreetype --enable-libmp3lame --enable-libopencore-
 amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus
 --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libtheora
 --enable-libtwolame --enable-libvpx --enable-libwavpack --enable-libwebp
 --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libzimg
 --enable-lzma --enable-zlib --enable-gmp --enable-libvidstab --enable-
 libvorbis --enable-libvo-amrwbenc --enable-libmysofa --enable-libspeex
 --enable-libxvid --enable-libaom --enable-libmfx --enable-amf --enable-
 ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec
 --enable-dxva2 --enable-avisynth
   libavutil      56. 22.100 / 56. 22.100
   libavcodec     58. 35.100 / 58. 35.100
   libavformat    58. 20.100 / 58. 20.100
   libavdevice    58.  5.100 / 58.  5.100
   libavfilter     7. 40.101 /  7. 40.101
   libswscale      5.  3.100 /  5.  3.100
   libswresample   3.  3.100 /  3.  3.100
   libpostproc    55.  3.100 / 55.  3.100
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'mp4noaudiostream.mp4':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isom
   Duration: 00:01:40.28, start: 0.000000, bitrate: 748 kb/s
     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv),
 512x288 [SAR 1:1 DAR 16:9], 548 kb/s, 25 fps, 25 tbr, 90k tbn, 50 tbc
 (default)
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 192 kb/s (default)
 Output #0, ipod, to 'output.m4v':
   Metadata:
     major_brand     : mp42
     minor_version   : 0
     compatible_brands: mp42isom
     encoder         : Lavf58.20.100
     Stream #0:0(eng): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv),
 512x288 [SAR 1:1 DAR 16:9], q=2-31, 548 kb/s, 25 fps, 25 tbr, 90k tbn, 90k
 tbc (default)
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz,
 stereo, fltp, 192 kb/s (default)
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:1 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 frame=  718 fps=0.0 q=-1.0 Lsize=    2027kB time=00:00:28.16 bitrate=
 589.7kbits/s speed=1.66e+03x
 video:2022kB audio:1kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.208394%

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7705#comment:4>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker