Play v1 format by default if available

app/assets/javascripts/player.js

@@ -5,8 +5,7 @@ function tryCreatePlayer(parentNode, asciicast, options) {
     asciinema_player.core.CreatePlayer(
       parentNode,
       asciicast.width, asciicast.height,
-      asciicast.stdout_frames_url,
-      asciicast.duration,
+      asciicast.url,
       {
         snapshot: asciicast.snapshot,
         speed: options.speed,
@@ -31,7 +30,7 @@ function tryCreatePlayer(parentNode, asciicast, options) {
   }
 
   function checkReadiness() {
-    if (asciicast.stdout_frames_url) {
+    if (asciicast.url && asciicast.snapshot) {
       $('.processing-info').remove();
       createPlayer();
     } else {

app/controllers/api/asciicasts_controller.rb

@@ -30,7 +30,7 @@ module Api
         end
 
         format.json do
-          render json: asciicast
+          render json: asciicast, playback_options: PlaybackOptions.new
         end
       end
     end

app/helpers/asciicasts_helper.rb

@@ -1,9 +1,10 @@
 module AsciicastsHelper
 
   def player(asciicast, options = PlaybackOptions.new, skip_titlebar = false)
-    render 'asciicasts/player', asciicast: AsciicastSerializer.new(asciicast),
-                                options:   options,
-                                skip_titlebar: skip_titlebar
+    render 'asciicasts/player',
+      asciicast: AsciicastSerializer.new(asciicast, playback_options: options),
+      options: options,
+      skip_titlebar: skip_titlebar
   end
 
   def screenshot_javascript_tag

app/models/asciicast.rb

@@ -85,6 +85,10 @@ class Asciicast < ActiveRecord::Base
     end
   end
 
+  def data_url
+    file_url || stdout_frames_url
+  end
+
   def stdout
     return @stdout if @stdout
     @stdout = Stdout::Buffered.new(get_stdout)

app/models/playback_options.rb

@@ -20,6 +20,7 @@ class PlaybackOptions
   attribute :benchmark, Boolean, default: false
   attribute :theme,     String,  default: Theme::DEFAULT
   attribute :t,         Time
+  attribute :v0,        Boolean, default: false
 
   def as_json(*)
     opts = {

app/serializers/asciicast_serializer.rb

@@ -1,7 +1,7 @@
 class AsciicastSerializer < ActiveModel::Serializer
   self.root = false
 
-  attributes :id, :duration, :stdout_frames_url, :snapshot
+  attributes :id, :url, :snapshot
   attribute :terminal_columns, key: :width
   attribute :terminal_lines, key: :height
 
@@ -9,6 +9,14 @@ class AsciicastSerializer < ActiveModel::Serializer
     object.to_param
   end
 
+  def url
+    if playback_options.v0
+      object.stdout_frames_url
+    else
+      object.data_url
+    end
+  end
+
   def private?
     object.private?
   end
@@ -29,4 +37,10 @@ class AsciicastSerializer < ActiveModel::Serializer
     object.user.avatar_url(object.user)
   end
 
+  private
+
+  def playback_options
+    @options[:playback_options]
+  end
+
 end

spec/serializers/asciicast_serializer_spec.rb

@@ -2,7 +2,7 @@ require 'rails_helper'
 
 describe AsciicastSerializer do
 
-  let(:serializer) { described_class.new(asciicast) }
+  let(:serializer) { AsciicastSerializer.new(asciicast, playback_options: PlaybackOptions.new) }
   let(:asciicast) { create(:asciicast) }
 
   describe '#to_json' do
@@ -12,12 +12,8 @@ describe AsciicastSerializer do
       expect(subject['id']).to eq(asciicast.to_param)
     end
 
-    it 'includes duration' do
-      expect(subject['duration']).to eq(asciicast.duration)
-    end
-
-    it 'includes stdout_frames_url' do
-      expect(subject['stdout_frames_url']).to eq(asciicast.stdout_frames_url)
+    it 'includes url' do
+      expect(subject['url']).to eq(asciicast.file_url)
     end
 
     it 'includes snapshot' do