I use this command for stripping metadata:
ffmpeg -i input.mp4 -map_metadata -1 -c copy output.mp4
Sometimes it works fine but occasionally the result is as
+----------------+----------------+
| Original video | Original video |
+----------------+----------------+
| Original sound | No sound |
+----------------+----------------+
I saved one output of such unsuccessful stripping:
ffmpeg -i ridiculousjump.mp4 -map_metadata -1 -c copy ridiculousjumpnomet.mp4
ffmpeg version N-85750-ga75ef15 Copyright (c) 2000-2017 the FFmpeg developers
built with gcc 6.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nv
enc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libblur
ay --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-
libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-lib
rtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amr
wbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enabl
e-libxvid --enable-libzimg --enable-lzma --enable-zlib
libavutil 55. 61.100 / 55. 61.100
libavcodec 57. 93.100 / 57. 93.100
libavformat 57. 72.101 / 57. 72.101
libavdevice 57. 7.100 / 57. 7.100
libavfilter 6. 88.100 / 6. 88.100
libswscale 4. 7.101 / 4. 7.101
libswresample 2. 8.100 / 2. 8.100
libpostproc 54. 6.100 / 54. 6.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'ridiculousjump.mp4':
Metadata:
major_brand : mp42
minor_version : 0
compatible_brands: mp42isom
creation_time : 2016-09-28T00:49:17.000000Z
encoder : mp4creator 1.6.1d
Duration: 00:00:26.56, start: 0.000000, bitrate: 822 kb/s
Stream #0:0(eng): Video: h264 (Constrained Baseline) (avc1 / 0x31637661), yuv420p, 636x396 [SAR 1:1 DAR 53:33], 694 kb/s, 25 fps, 25
tbr, 90k tbn, 50 tbc (default)
Metadata:
creation_time : 2016-09-28T00:49:17.000000Z
encoder : VC Coding
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 125 kb/s (default)
Metadata:
creation_time : 2016-09-28T00:49:17.000000Z
Output #0, mp4, to 'ridiculousjumpnomet.mp4':
Metadata:
encoder : Lavf57.72.101
Stream #0:0: Video: h264 (Constrained Baseline) ([33][0][0][0] / 0x0021), yuv420p, 636x396 [SAR 1:1 DAR 53:33], q=2-31, 694 kb/s, 25
fps, 25 tbr, 90k tbn, 90k tbc (default)
Stream #0:1: Audio: aac (LC) ([64][0][0][0] / 0x0040), 44100 Hz, stereo, fltp, 125 kb/s (default)
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame= 1328 fps=0.0 q=-1.0 Lsize= 4929kB time=00:00:53.08 bitrate= 760.8kbits/s speed= 915x
video:4504kB audio:405kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.416591%
(I'm currently not able to find that input video but I will post it as soon as I will find it — or similar one.)
Had someone a similar experience or knows where is or may be the problem?
EDIT
I found a video with the same problem, only 430 KiB: Bubble_burst.mp4.