1 | # Copyright (c) 2005 Norman Timmler (inlet media e.K., Hamburg, Germany)
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2 | # All rights reserved.
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3 | #
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4 | # Redistribution and use in source and binary forms, with or without
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5 | # modification, are permitted provided that the following conditions
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6 | # are met:
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7 | # 1. Redistributions of source code must retain the above copyright
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8 | # notice, this list of conditions and the following disclaimer.
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9 | # 2. Redistributions in binary form must reproduce the above copyright
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10 | # notice, this list of conditions and the following disclaimer in the
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11 | # documentation and/or other materials provided with the distribution.
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12 | # 3. The name of the author may not be used to endorse or promote products
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13 | # derived from this software without specific prior written permission.
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14 | #
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15 | # THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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16 | # IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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17 | # OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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18 | # IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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19 | # INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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20 | # NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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21 | # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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22 | # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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23 | # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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24 | # THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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25 |
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26 | require 'flv/amf_string_buffer'
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27 | require 'miyaml'
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28 |
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29 | module FLV
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30 |
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31 | class FLVMetaTag < FLVTag
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32 |
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33 | attr_accessor :meta_data, :event
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34 |
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35 | def after_initialize(new_object)
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36 | @tag_type = META
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37 | unless new_object
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38 | meta_data_stream = AMFStringBuffer.new(@data)
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39 | @event = meta_data_stream.read__AMF_data
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40 | @meta_data = meta_data_stream.read__AMF_data
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41 | else
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42 | @event = 'onMetaData'
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43 | @meta_data = {}
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44 | end
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45 | end
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46 |
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47 | def name
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48 | "Meta Tag (#{@event})"
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49 | end
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50 |
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51 | def add_meta_data(meta_data)
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52 | return nil if meta_data.nil?
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53 | @metadata.update meta_data
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54 | end
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55 |
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56 | def data
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57 | meta_data_stream = AMFStringBuffer.new('')
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58 | meta_data_stream.write__AMF_string @event
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59 | meta_data_stream.write__AMF_data @meta_data
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60 | meta_data_stream.to_s
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61 | end
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62 |
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63 | def [](key)
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64 | @meta_data[key]
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65 | end
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66 |
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67 | def []=(key, value)
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68 | @meta_data[key] = value
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69 | end
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70 |
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71 | def inspect
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72 | out = super
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73 | out << "event: #{@event}"
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74 | out << "meta_data:\n #{MiYAML.dump(@meta_data, :indent => 2, :boundaries => false)}"
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75 | out
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76 | end
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77 | end
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78 | end
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