嘿，我有2个AVI文件，我想将它们连接到一个输出。
文件路径写在文本文件（mylist.txt）中：
file1.avi - 仅包含视频。 file2.avi - 包含视频和音频。
我执行下一个命令：
ffmpeg -f concat -i C:\ffmpeg\mylist.txt -c copy C:\ffmpeg\output.avi
mylist.txt =
文件'C：\ motionbee \ ffmpeg \ bin \ file1.avi'
文件'C：\ motionbee \ ffmpeg \ bin \ file2.avi'
输出文件是2个文件的连接。但是来自file2.avi的声音不存在。
所以如何在不删除声音的情况下与他们联系???
控制台日志：
C:\motionbee\ffmpeg\bin>ffmpeg -f concat -i C:\motionbee\ffmpeg\bin\mylist.txt -
c copy C:\motionbee\ffmpeg\bin\output.avi
ffmpeg version N-78949-g6f5048f Copyright (c) 2000-2016 the FFmpeg developers
built with gcc 5.3.0 (GCC)
configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-av
isynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enab
le-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --
enable-libdcadec --enable-libfreetype --enable-libgme --enable-libgsm --enable-l
ibilbc --enable-libmodplug --enable-libmfx --enable-libmp3lame --enable-libopenc
ore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --ena
ble-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable
-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --ena
ble-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx
264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable
-lzma --enable-decklink --enable-zlib
libavutil 55. 19.100 / 55. 19.100
libavcodec 57. 27.101 / 57. 27.101
libavformat 57. 28.100 / 57. 28.100
libavdevice 57. 0.101 / 57. 0.101
libavfilter 6. 39.100 / 6. 39.100
libswscale 4. 0.100 / 4. 0.100
libswresample 2. 0.101 / 2. 0.101
libpostproc 54. 0.100 / 54. 0.100
Input #0, concat, from 'C:\motionbee\ffmpeg\bin\mylist.txt':
Duration: N/A, start: 0.000000, bitrate: 523 kb/s
Stream #0:0: Video: mpeg4 (Simple Profile) (FMP4 / 0x34504D46), yuv420p, 720
x480 [SAR 32:27 DAR 16:9], 523 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 30k tbc
File 'C:\motionbee\ffmpeg\bin\output.avi' already exists. Overwrite ? [y/N] y
Output #0, avi, to 'C:\motionbee\ffmpeg\bin\output.avi':
Metadata:
ISFT : Lavf57.28.100
Stream #0:0: Video: mpeg4 (FMP4 / 0x34504D46), yuv420p, 720x480 [SAR 32:27 D
AR 16:9], q=2-31, 523 kb/s, 29.97 fps, 29.97 tbr, 29.97 tbn, 29.97 tbc
Stream mapping:
Stream #0:0 -> #0:0 (copy)
Press [q] to stop, [?] for help
[concat @ 0000000000452620] New audio stream 0:1 at pos:10038 and DTS:100.104s
frame= 6000 fps=0.0 q=-1.0 Lsize= 13020kB time=00:03:20.23 bitrate= 532.7kbits
/s speed=1.39e+003x
video:12870kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing
overhead: 1.159987%
感谢。