tags: {  # amp-audio 1.0
  html_format: AMP
  tag_name: "SCRIPT"
  satisfies_condition: "amp-audio 1.0"
  excludes_condition: "amp-audio 0.1"
  extension_spec: {
    name: "amp-audio"
    version_name: "v1.0"
    version: "1.0"
    bento_supported_version: "1.0"
  }
  attr_lists: "common-extension-attrs"
}
tags: {  # amp-audio 0.1
  html_format: AMP
  html_format: AMP4ADS
  tag_name: "SCRIPT"
  satisfies_condition: "amp-audio 0.1"
  excludes_condition: "amp-audio 1.0"
  extension_spec: {
    name: "amp-audio"
    version_name: "v0.1"
    version: "0.1"
    version: "latest"
    deprecated_allow_duplicates: true
    requires_usage: EXEMPTED
  }
  attr_lists: "common-extension-attrs"
}
attr_lists: { # amp-audio attributes that are common to both AMP and A4A format.
  name: "amp-audio-common"
  attrs: { name: "album" }
  attrs: { name: "artist" }
  attrs: { name: "artwork" }
  attrs: { name: "controls" }
  attrs: { name: "controlslist" }
  attrs: { name: "loop"  value: "" }
  attrs: { name: "muted" value: "" }
  attrs: {
    name: "src"
    value_url: {
      protocol: "https"
      allow_relative: true  # Will be set to false at a future date.
    }
    disallowed_value_regex: "__amp_source_origin"
  }
  # <amp-bind>
  attrs: { name: "[album]" }
  attrs: { name: "[artist]" }
  attrs: { name: "[artwork]" }
  attrs: { name: "[controlslist]" }
  attrs: { name: "[loop]" }
  attrs: { name: "[src]" }
  attrs: { name: "[title]" }
}
tags: {  # <amp-audio> for AMP (autoplay attribute allowed)
  html_format: AMP
  tag_name: "AMP-AUDIO"
  # There is an alternate spec for amp-video in amp-story.
  disallowed_ancestor: "AMP-STORY"
  requires_extension: "amp-audio"
  attrs: {
    name: "autoplay"
    value: ""
  }
  attrs: {
    name: "preload"
    value_casei: "auto"
    value_casei: "metadata"
    value_casei: "none"
  }
  attr_lists: "amp-audio-common"
  attr_lists: "extended-amp-global"
  spec_url: "https://amp.dev/documentation/components/amp-audio/"
  amp_layout {
    defines_default_height: true
    # TODO(johannes): in the longer run, defines_default_width should
    # be false, to make it a fixed height layout per default, rather
    # than a fixed one.
    defines_default_width: true
    supported_layouts: FIXED
    supported_layouts: FIXED_HEIGHT
    supported_layouts: CONTAINER
    supported_layouts: NODISPLAY
  }
}
tags: {  # <amp-audio> for AMP, amp-story (autoplay attribute mandatory)
  html_format: AMP
  tag_name: "AMP-AUDIO"
  spec_name: "amp-story >> amp-audio"
  mandatory_ancestor: "AMP-STORY"
  requires_extension: "amp-audio"
  attrs: {
    name: "autoplay"
    value: ""
    mandatory: true
  }
  attr_lists: "amp-audio-common"
  attr_lists: "extended-amp-global"
  spec_url: "https://amp.dev/documentation/components/amp-audio/"
  amp_layout {
    supported_layouts: NODISPLAY
  }
}

tags: {  # <amp-audio> for A4A (autoplay attribute disallowed)
  html_format: AMP4ADS
  tag_name: "AMP-AUDIO"
  spec_name: "amp-audio (A4A)"
  requires_extension: "amp-audio"
  attr_lists: "amp-audio-common"
  attr_lists: "extended-amp-global"
  spec_url: "https://amp.dev/documentation/components/amp-audio/"
  amp_layout {
    defines_default_height: true
    defines_default_width: true
    supported_layouts: FIXED
    supported_layouts: FIXED_HEIGHT
    supported_layouts: NODISPLAY
  }
}