当我尝试使用carrierwave-video-thumbnailer gem运行 ffmpegthumbnailer 时,出现错误“没有这样的文件或目录” 。
我确认 ffmpegthumbnailer 在我的计算机上正常工作,因为我可以直接从命令行从视频生成缩略图。
从我的日志来看,我的应用似乎认为它已经生成了一个缩略图。但是,当我查看目录时,没有文件 tmpfile.png,并且我的应用程序失败并出现错误。
有没有人成功使用carrierewave-video-thumbnailer gem 来创建缩略图,如果是这样,我做错了什么? 或者,如果有某种方法可以在我的模型中运行 ffmpegthumbnailer,我也可以这样做。
这是我的日志:
Running....ffmpegthumbnailer -i /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/thumb_Untitled.mov -o /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/tmpfile.png -c png -q 10 -s 192 -f
Success!
Errno::ENOENT: No such file or directory - (/Users/.../Website/public/uploads/tmp/1380315873-21590-2814/tmpfile.png, /Users/.../Website/public/uploads/tmp/1380315873-21590-2814/thumb_Untitled.mov)
video_path_uploader.rb
class VideoPathUploader < CarrierWave::Uploader::Base
include CarrierWave::Video
include CarrierWave::Video::Thumbnailer
process encode_video: [:mp4]
# Include RMagick or MiniMagick support:
# include CarrierWave::RMagick
include CarrierWave::MiniMagick
# Choose what kind of storage to use for this uploader:
# storage :file
storage :fog
# Override the directory where uploaded files will be stored.
# This is a sensible default for uploaders that are meant to be mounted:
def store_dir
"#{model.class.to_s.underscore}/#{mounted_as}/#{model.id}"
end
version :thumb do
process thumbnail: [{format: 'png', quality: 10, size: 192, strip: true, logger: Rails.logger}]
def full_filename for_file
png_name for_file, version_name
end
end
def png_name for_file, version_name
%Q{#{version_name}_#{for_file.chomp(File.extname(for_file))}.png}
end
end
视频.rb
class Video < ActiveRecord::Base
# maybe we should add a title attribute to the video?
attr_accessible :position, :project_id, :step_id, :image_id, :saved, :embed_url, :thumbnail_url, :video_path
mount_uploader :video_path, VideoPathUploader
...
end