我正在尝试将7秒的介绍性视频放在另一个视频之前，但是我仍然遇到麻烦。我不需要做任何其他事情，然后向视频添加简介。
这就是我现在得到的。
(for %i in (*.mp4) do @echo file '%i') > mylist.txt
ffmpeg -f concat -safe 0 -i mylist.txt -c copy output.mp4
C:\Users\Business>cd desktop
C:\Users\Business\Desktop>cd testfile
C:\Users\Business\Desktop\Testfile>(for %i in (*.mp4) do @echo file '%i') > mylist.txt
C:\Users\Business\Desktop\Testfile>
C:\Users\Business\Desktop\Testfile>(for %i in (*.mp4) do @echo file '%i') > mylist.txt
C:\Users\Business\Desktop\Testfile>ffmpeg -f concat -i mylist.txt -c copy output.mp4
ffmpeg version N-93308-g1144d5c96d Copyright (c) 2000-2019 the FFmpeg developers
built with gcc 8.2.1 (GCC) 20190212
configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-libdav1d --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 --enable-libopenmpt
libavutil 56. 26.100 / 56. 26.100
libavcodec 58. 47.103 / 58. 47.103
libavformat 58. 26.101 / 58. 26.101
libavdevice 58. 6.101 / 58. 6.101
libavfilter 7. 48.100 / 7. 48.100
libswscale 5. 4.100 / 5. 4.100
libswresample 3. 4.100 / 3. 4.100
libpostproc 55. 4.100 / 55. 4.100
[mov,mp4,m4a,3gp,3g2,mj2 @ 00000261c7072c00] Auto-inserting h264_mp4toannexb bitstream filter
Input #0, concat, from 'mylist.txt':
Duration: N/A, start: -0.042667, bitrate: 2453 kb/s
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, 2325 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 59.94 tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
handler_name : SoundHandler
Output #0, mp4, to 'output.mp4':
Metadata:
encoder : Lavf58.26.101
Stream #0:0(eng): Video: h264 (High) (avc1 / 0x31637661), yuv420p, 1280x720, q=2-31, 2325 kb/s, 29.97 fps, 29.97 tbr, 30k tbn, 30k tbc
Metadata:
handler_name : VideoHandler
Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s
Metadata:
handler_name : SoundHandler
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Stream #0:1 -> #0:1 (copy)
Press [q] to stop, [?] for help
frame=110209 fps=3246 q=-1.0 Lsize= 1103461kB time=01:01:17.41 bitrate=2458.1kbits/s speed= 108x
video:1042171kB audio:57353kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.358030%
C:\Users\Business\Desktop\Testfile>
它将7秒的视频显示为整个视频。不知何故，我在7秒钟后改变了它，但是随后的视频真的是好伙伴。