举个例子,用mplayer播放网络视频

mplayer http://cntv.vod.cdn.myqcloud.com/flash/mp4video63/TMS/2020/11/25/c9d907b6b69248a5ae253eff407cdc87_h2642000000nero_aac16-1.mp4
MPlayer 1.3.0 (Debian), built with gcc-8 (C) 2000-2016 MPlayer Team
do_connect: could not connect to socket
connect: No such file or directory
Failed to open LIRC support. You will not be able to use your remote control.

Playing http://cntv.vod.cdn.myqcloud.com/flash/mp4video63/TMS/2020/11/25/c9d907b6b69248a5ae253eff407cdc87_h2642000000nero_aac16-1.mp4.
Resolving cntv.vod.cdn.myqcloud.com for AF_INET6...

Couldn't resolve name for AF_INET6: cntv.vod.cdn.myqcloud.com
Resolving cntv.vod.cdn.myqcloud.com for AF_INET...
Connecting to server cntv.vod.cdn.myqcloud.com[110.185.114.63]: 80...

Cache size set to 320 KBytes
Cache fill: 0.00% (0 bytes)

libavformat version 58.20.100 (external)
libavformat file format detected.
[mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f1b8c1a1e00]Protocol name not provided, cannot determine if input is local or a network protocol, buffers and access patterns cannot be configured optimally without knowing the protocol
Cannot open libmwv206dec.so, libmwv206dec.so: cannot open shared object file: No such file or directory
Cannot open libmwv206dec.so, libmwv206dec.so: cannot open shared object file: No such file or directory
[lavf] stream 0: video (h264), -vid 0
[lavf] stream 1: audio (aac), -aid 0, -alang eng
VIDEO: [H264] 1280x720 24bpp 25.000 fps 1872.7 kbps (228.6 kbyte/s)
Failed to open VDPAU backend libvdpau_i965.so: cannot open shared object file: No such file or directory
[vdpau] Error when calling vdp_device_create_x11: 1
==========================================================================
Opening video decoder: [ffmpeg] FFmpeg's libavcodec codec family
libavcodec version 58.35.100 (external)
Cannot open libmwv206dec.so, libmwv206dec.so: cannot open shared object file: No such file or directory
Selected video codec: [ffh264] vfm: ffmpeg (FFmpeg H.264)
==========================================================================
Clip info:
major_brand: mp42
minor_version: 0
compatible_brands: mp42avc1
creation_time: 2020-11-25T19:24:25.000000Z
==========================================================================
Opening audio decoder: [ffmpeg] FFmpeg/libavcodec audio decoders
AUDIO: 48000 Hz, 2 ch, floatle, 125.4 kbit/4.08% (ratio: 15675->384000)
Selected audio codec: [ffaac] afm: ffmpeg (FFmpeg AAC (MPEG-2/MPEG-4 Audio))
==========================================================================
AO: [pulse] 48000Hz 2ch floatle (4 bytes per sample)
Starting playback...
Movie-Aspect is 1.78:1 - prescaling to correct movie aspect.
VO: [xv] 1280x720 => 1280x720 Planar YV12
A: 2.1 V: 2.1 A-V: 0.000 ct: 0.040 0/ 0 10% 1% 0.4% 0 0 45%

Exiting... (Quit)

使用ipv6就会解析不成功,必须使用ipv4

➜ ~ mpv http://cntv.vod.cdn.myqcloud.com/flash/mp4video63/TMS/2020/11/25/c9d907b6b69248a5ae253eff407cdc87_h2642000000nero_aac16-1.mp4
Playing: http://cntv.vod.cdn.myqcloud.com/flash/mp4video63/TMS/2020/11/25/c9d907b6b69248a5ae253eff407cdc87_h2642000000nero_aac16-1.mp4

使用mpv播放直接卡住不动,估计mpv不会自动切换到ipv4去解析视频ip地址吧