FFMPEG将视频分割为带音频的片段

如何解决FFMPEG将视频分割为带音频的片段

我想用m3u8播放列表将mov文件分割为.ts段。 除了音频，其他都还可以。音频无法正常工作，而且ffmpeg似乎忽略了音频流。

这是我的命令：

touch filename
git add filename

此命令后，我收到5个ts片段和带有片段路径列表的m3u8播放列表。 如果我打开段文件的属性，则“音频和视频”选项卡中没有任何信息（尽管视频有效）

这是输出：

ffmpeg -i stepteen2.mov 
       -c:a aac 
       -c:v libx264 
       -an 
       -map 0 
       -muxdelay 0 
       -muxpreload 0 
       -output_ts_offset 0 
       -segment_time 2 
       -segment_wrap 1000 
       -segment_list_size 0 
       -segment_list temp.m3u8 
       -segment_list_flags +cache 
       -segment_list_type m3u8 
       -f segment 
       temp-%03d.ts

我看到到'temp-％03d.ts'的输出＃0段仅包含视频流：

ffmpeg version n4.1.4 copyright (c) 2000-2019 the FFmpeg developers
  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
  configuration: --prefix= --prefix=/usr --disable-debug --disable-doc --disable-static --enable-avisynth --enable-cuda --enable-cuvid --enable-libdrm --enable-ffplay --enable-gnutls --enable-gpl --enable-libass --enable-libfdk-aac --enable-libfontconfig --enable-libfreetype --enable-libmp3lame --enable-libopencore_amrnb --enable-libopencore_amrwb --enable-libopus --enable-libpulse --enable-sdl2 --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libv4l2 --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --enable-libxcb --enable-libxvid --enable-nonfree --enable-nvenc --enable-omx --enable-openal --enable-opencl --enable-runtime-cpudetect --enable-shared --enable-vaapi --enable-vdpau --enable-version3 --enable-xlib
  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 'stepteen2.mov':
  Metadata:
    creation_time   : 1998-11-12T18:28:20.000000Z
  Duration: 00:00:28.60,start: 0.000000,bitrate: 111 kb/s
    Stream #0:0(eng): Video: svq1 (SVQ1 / 0x31515653),yuv410p,160x120,90 kb/s,7.52 fps,7.50 tbr,600 tbn,600 tbc (default)
    Metadata:
      creation_time   : 1998-11-12T18:28:20.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Sorenson Video
    Stream #0:1(eng): Audio: qdmc (QDMC / 0x434D4451),44100 Hz,mono,s16,20 kb/s (default)
    Metadata:
      creation_time   : 1998-11-12T18:28:20.000000Z
      handler_name    : Apple Sound Media Handler
Stream mapping:
  Stream #0:0 -> #0:0 (svq1 (native) -> h264 (libx264))
Press [q] to stop,[?] for help
[libx264 @ 0x55a5a80b8dc0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x55a5a80b8dc0] profile High,level 1.0
[libx264 @ 0x55a5a80b8dc0] 264 - core 152 r2854 e9a5903 - H.264/MPEG-4 AVC codec - copyleft 2003-2017 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=4 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=7 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
[segment @ 0x55a5a7fd2e00] opening 'temp-000.ts' for writing
Output #0,segment,to 'temp-%03d.ts':
  Metadata:
    encoder         : Lavf58.20.100
    Stream #0:0(eng): Video: h264 (libx264),yuv420p,q=-1--1,7.50 fps,90k tbn,7.50 tbc (default)
    Metadata:
      creation_time   : 1998-11-12T18:28:20.000000Z
      handler_name    : Apple Video Media Handler
      encoder         : Lavc58.35.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp-001.ts' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp-002.ts' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp-003.ts' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp-004.ts' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp-005.ts' for writing
[segment @ 0x55a5a7fd2e00] opening 'temp.m3u8.tmp' for writing
frame=  215 fps=0.0 q=-1.0 Lsize=N/A time=00:00:28.26 bitrate=N/A speed= 162x    
video:217kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unkNown
[libx264 @ 0x55a5a80b8dc0] frame I:8     Avg QP:14.15  size:  2625
[libx264 @ 0x55a5a80b8dc0] frame P:93    Avg QP:21.28  size:  1295
[libx264 @ 0x55a5a80b8dc0] frame B:114   Avg QP:24.62  size:   703
[libx264 @ 0x55a5a80b8dc0] consecutive B-frames: 27.0%  2.8% 12.6% 57.7%
[libx264 @ 0x55a5a80b8dc0] mb I  I16..4: 28.3% 23.0% 48.8%
[libx264 @ 0x55a5a80b8dc0] mb P  I16..4:  1.5%  6.2%  7.0%  P16..4: 21.3% 17.8% 15.1%  0.0%  0.0%    skip:31.1%
[libx264 @ 0x55a5a80b8dc0] mb B  I16..4:  1.2%  1.8%  1.5%  B16..8: 28.1% 16.0% 10.0%  direct:11.0%  skip:30.4%  L0:43.4% L1:31.9% BI:24.8%
[libx264 @ 0x55a5a80b8dc0] 8x8 transform intra:35.9% inter:39.5%
[libx264 @ 0x55a5a80b8dc0] coded y,uvDC,uvAC intra: 73.6% 71.0% 48.2% inter: 34.9% 32.7% 4.3%
[libx264 @ 0x55a5a80b8dc0] i16 v,h,dc,p: 61% 12% 26%  2%
[libx264 @ 0x55a5a80b8dc0] i8 v,ddl,ddr,vr,hd,vl,hu: 32% 14% 23%  5%  4%  5%  4%  7%  6%
[libx264 @ 0x55a5a80b8dc0] i4 v,hu: 31% 16% 15%  6%  5%  8%  6%  7%  7%
[libx264 @ 0x55a5a80b8dc0] i8c dc,v,p: 53% 17% 21%  9%
[libx264 @ 0x55a5a80b8dc0] Weighted P-Frames: Y:14.0% UV:9.7%
[libx264 @ 0x55a5a80b8dc0] ref P L0: 65.2% 16.8% 12.2%  5.4%  0.4%
[libx264 @ 0x55a5a80b8dc0] ref B L0: 92.3%  6.2%  1.4%
[libx264 @ 0x55a5a80b8dc0] ref B L1: 97.3%  2.7%
[libx264 @ 0x55a5a80b8dc0] kb/s:61.84

解决方法

删除-an。此选项表示“无音频”。