我一直在尝试使用RTMP将我的网络摄像头流式传输到Ustream .
使用标准命令很有用：
“avconv -f video4linux2 -r 25 -s 320x240 -i / dev / video0 -f flv rtmp：// host / pass”
但我延迟了一段时间！因此我决定使用libx264压缩视频 . 我下载并确认它已正确安装 . 但是在运行此命令时：
“avconv -f video4linux2 -r 25 -s 320x240 -i / dev / video0 -c：v libx264 -pix_fmt yuv420p -f flv rtmp：// host / pass”
在ffmpeg我得到“非法指令”并且在avconv下它开始流，但在Ustream Channels 中没有显示 .
avconv命令的输出
avconv version 9.14-6:9.14-1rpi1rpi1, Copyright (c) 2000-2014 the
Libav developers
built on Jul 22 2014 15:08:12 with gcc 4.6 (Debian 4.6.3-14+rpi1)
[video4linux2 @ 0x709740] The driver changed the time per frame from 1/5 to 1/30
[video4linux2 @ 0x709740] Estimating duration from bitrate, this may
be inaccurate
Input #0, video4linux2, from '/dev/video0':
Duration: N/A, start: 5069.991764, bitrate: 36864 kb/s
Stream #0.0: Video: rawvideo, yuyv422, 320x240, 36864 kb/s, 1000k tbn, 30 tbc
[libx264 @ 0x70a9e0] using cpu capabilities: none!
[libx264 @ 0x70a9e0] profile High, level 1.2
[libx264 @ 0x70a9e0] 264 - core 130 r2282 1db4621 - H.264/MPEG-4 AVC
codec - Copyleft 2003-2013 - 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=1 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=5 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=1.25
aq=1:1.00
Output #0, flv, to
'rtmp:host/pass:
Metadata:
encoder : Lavf54.20.4
Stream #0.0: Video: libx264, yuv420p, 320x240, q=-1--1, 1k tbn, 5 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo -> libx264)
Press ctrl-c to stop encoding
frame= 44 fps= 3 q=23.0 size= 26kB time=0.20
bitrate=1071.8kbits/s bits/s
可能是什么问题呢？先谢谢你