Amazon s3 使用Silence上载视频文件并生成缩略图

我想使用圣殿宝石上传视频文件，转码，并从视频生成缩略图

我正在尝试将埃里克·达斯特朗的照片转换成视频。我在创建视频上传程序时遇到问题。我基于

事实上，那个位置没有文件。那么等待上传时文件存储在哪里

此外，使用演示将照片上载到AWS（production env），对象存储在bucket中名为“照片”的文件夹中。Shirike使用表名来命名文件夹。是否可以创建替代文件夹名称和嵌套文件夹名称

谢谢你-看起来像一块神奇的宝石！试着更好地理解它

---

Thx

进一步深入研究文档，我只剩下一个问题就解决了这个问题-是否可以控制原始和拇指上传到AWS bucket中的哪些文件夹？Thx

解决方案：

require "streamio-ffmpeg"
require "tempfile"

class VideoUploader < ImageUploader
  plugin :add_metadata
  plugin :validation_helpers
  plugin :processing
  plugin :versions
  plugin :delete_raw

  add_metadata do |io, context|
    movie = Shrine.with_file(io) { |file| FFMPEG::Movie.new(file.path) }
    { "duration"   => movie.duration,
      "bitrate"    => movie.bitrate,
      "resolution" => movie.resolution,
      "frame_rate" => movie.frame_rate
    }

  end

  process(:store) do |io, context|
    versions = {original: io}

    io.download do |original|
      screenshot1 = Tempfile.new(["screenshot1", ".jpg"], binmode: true)
      screenshot2 = Tempfile.new(["screenshot2", ".jpg"], binmode: true)
      screenshot3 = Tempfile.new(["screenshot3", ".jpg"], binmode: true)
      screenshot4 = Tempfile.new(["screenshot4", ".jpg"], binmode: true)

      movie = FFMPEG::Movie.new(original.path)
      movie.screenshot(screenshot1.path, seek_time: 5, resolution: '640x480')
      movie.screenshot(screenshot2.path, seek_time: 10, resolution: '640x480')
      movie.screenshot(screenshot3.path, seek_time: 15, resolution: '640x480')
      movie.screenshot(screenshot4.path, seek_time: 20, resolution: '640x480')

      [screenshot1, screenshot2, screenshot3, screenshot4].each(&:open) # refresh file descriptors

      versions.merge!(screenshot1: screenshot1, screenshot2: screenshot2, screenshot3: screenshot3, screenshot4: screenshot4)
    end

    versions
  end

  Attacher.validate do
    validate_max_size 100.megabyte, message: "is too large (max is 100 MB)"
    validate_mime_type_inclusion ALLOWED_TYPES
  end
end

需要“streamio ffmpeg”
需要“临时文件”
类视频上传器<图像上传器
插件：添加元数据
插件：验证帮助程序
插件：处理
插件：版本
插件：删除_raw
添加元数据do | io，上下文|
movie=shire.with_file（io）{| file | FFMPEG:：movie.new（file.path）}
{“duration”=>movie.duration，
“比特率”=>movie.bitrate，
“分辨率”=>movie.resolution，
“帧速率”=>movie.frame\u rate
}
结束
进程（：存储）do | io，上下文|
版本={original:io}
io.download do |原件|
screenshot1=Tempfile.new（[“screenshot1”，“.jpg”]，binmode:true）
screenshot2=Tempfile.new（[“screenshot2”，“.jpg”]，binmode:true）
screenshot3=Tempfile.new（[“screenshot3”，“.jpg”]，binmode:true）
screenshot4=Tempfile.new（[“screenshot4”，“.jpg”]，binmode:true）
movie=FFMPEG:：movie.new（original.path）
电影。截图（截图1.path，搜索时间：5，分辨率：'640x480'）
电影。截图（截图2.path，搜索时间：10，分辨率：'640x480'）
电影。截图（截图3.path，搜索时间：15，分辨率：'640x480'）
电影。截图（截图4.path，搜索时间：20，分辨率：'640x480'）
[screenshot1，screenshot2，screenshot3，screenshot4]。每个（&：打开）#刷新文件描述符
版本。合并！（截图1:screenshot1，screenshot2:screenshot2，screenshot3:screenshot3，screenshot4:screenshot4）
结束
版本
结束
Attacher.do
验证\u max\u size 100.MB，消息：“太大（最大为100 MB）”
验证\u mime\u类型\u允许的包含\u类型
结束
结束

/var/folders/mm/_j8x4k2176jcv31zvbc497_c0000gp
    /T/shrine20190607-24438-4f3jz2.m4v: No such file or directory

require "streamio-ffmpeg"
require "tempfile"

class VideoUploader < ImageUploader
  plugin :add_metadata
  plugin :validation_helpers
  plugin :processing
  plugin :versions
  plugin :delete_raw

  add_metadata do |io, context|
    movie = Shrine.with_file(io) { |file| FFMPEG::Movie.new(file.path) }
    { "duration"   => movie.duration,
      "bitrate"    => movie.bitrate,
      "resolution" => movie.resolution,
      "frame_rate" => movie.frame_rate
    }

  end

  process(:store) do |io, context|
    versions = {original: io}

    io.download do |original|
      screenshot1 = Tempfile.new(["screenshot1", ".jpg"], binmode: true)
      screenshot2 = Tempfile.new(["screenshot2", ".jpg"], binmode: true)
      screenshot3 = Tempfile.new(["screenshot3", ".jpg"], binmode: true)
      screenshot4 = Tempfile.new(["screenshot4", ".jpg"], binmode: true)

      movie = FFMPEG::Movie.new(original.path)
      movie.screenshot(screenshot1.path, seek_time: 5, resolution: '640x480')
      movie.screenshot(screenshot2.path, seek_time: 10, resolution: '640x480')
      movie.screenshot(screenshot3.path, seek_time: 15, resolution: '640x480')
      movie.screenshot(screenshot4.path, seek_time: 20, resolution: '640x480')

      [screenshot1, screenshot2, screenshot3, screenshot4].each(&:open) # refresh file descriptors

      versions.merge!(screenshot1: screenshot1, screenshot2: screenshot2, screenshot3: screenshot3, screenshot4: screenshot4)
    end

    versions
  end

  Attacher.validate do
    validate_max_size 100.megabyte, message: "is too large (max is 100 MB)"
    validate_mime_type_inclusion ALLOWED_TYPES
  end
end