Ruby on rails 服务器上的Ffmpeg错误

您好，我在服务器vps上有一个ffmpeg，但当我仅转换网络摄像头的视频时，我有一个错误

Comand
Command 'PATH=/usr/local/bin/:$PATH; ffmpeg -i '/tmp/4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx.webm' -vcodec libx264 -s 1280x720 -acodec aac -strict experimental -y '/tmp/4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx20150630-21866-i25cmw.mp4''

App 21834 stderr: [libx264 @ 0x374e440] AVFrame.format is not set
App 21834 stderr: [libx264 @ 0x374e440] AVFrame.width or height is not set
App 21834 stderr: [libx264 @ 0x374e440] Input picture width (1280) is greater than stride (0)
App 21834 stderr: Video encoding failed
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: frame I:125   Avg QP:16.63  size: 53542
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: frame P:8143  Avg QP:18.97  size:  1151
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: frame B:22849 Avg QP:27.42  size:    52
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: consecutive B-frames:  2.0%  0.1%  0.2% 97.6%
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: mb I  I16..4: 19.2% 71.8%  9.1%
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: mb P  I16..4:  0.3%  0.4%  0.0%  P16..4:  5.1%  0.8%  0.7%  0.0%  0.0%    skip:92.7%
App 21834 stderr: [libx264 @ 0x374e440] 
App 21834 stderr: mb B  I16..4:  0.0%  0.0%  0.0%  B16..8:  0.6%  0.0%  0.0%  direct: 0.0%  skip:99.4%  L0:17.2% L1:82.8% BI: 0.0%


App 21834 stderr: [aac @ 0x383e9c0] 
App 21834 stderr: 2 frames left in the queue on closing
App 21834 stderr: Conversion failed!
App 21834 stderr: ffmpeg version git-2015-04-15-c5d4f87 Copyright (c) 2000-2015 the FFmpeg developers
App 21834 stderr:   built with gcc 4.6 (Ubuntu/Linaro 4.6.3-1ubuntu5)
App 21834 stderr:   configuration: --enable-gpl --enable-libfaac --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-librtmp --enable-libtheora --enable-libvorbis --enable-libvpx --enable-libx264 --enable-nonfree --enable-version3
App 21834 stderr:   libavutil      54. 22.101 / 54. 22.101

App 21834标准：libavcodec 56。34.100 / 56. 34.100 App 21834标准：libav56格式。30.100 / 56. 30.100 App 21834标准：libav56设备。4.100 / 56. 4.100 App 21834标准：libavfilter 5。14.100 / 5. 14.100 App 21834标准：libswscale 3。1.101 / 3. 1.101 App 21834标准：libswresample 1。1.100 / 1. 1.100 App 21834标准：libpostroc 53。3.100 / 53. 3.100 App 21834标准：输入#0，matroska，webm，来自“/tmp/4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx.webm”：

App 21834 stderr: video:59kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: unknown

App 21866 stdout: Validation failed: Video presentacion error while processing video for 4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx: Command 'PATH=/usr/local/bin/:$PATH; ffmpeg -i '/tmp/4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx.webm' -vcodec libx264 -s 1280x720 -acodec aac -strict experimental -y '/tmp/4158602f121d1e6f0dc8ba45a4c25fa620150630-21866-dylnjx20150630-21866-i25cmw.mp4'' returned 1. Expected 0

---

真的不知道。输入的格式是什么？尝试将

ffprobe-show\u streams-print\u format json-v quiet>

添加到问题中，因为输入端不太清楚发生了什么感谢我使用paperclipt gem for ruby on rails和paperclip ffmpeg我在开发模式下运行时不显示命令，但用于ffmpeg？仅在服务器上不工作：/ffmpeg插件安装缺失？