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00:00:00,000 --> 00:00:05,000
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Video by Mario Ducoing
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Used with permission
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2
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00:00:06,000 --> 00:00:08,000
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PREQ1939
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3
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00:00:08,000 --> 00:00:12,000
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Video Subtitles and
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Captioning Support
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4
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00:00:15,000 --> 00:00:18,000
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PREQ1939 is complete
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and available today.
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5
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00:00:18,000 --> 00:00:21,000
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It is officially in Symbian OS
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Diran only, but the code is
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6
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00:00:21,000 --> 00:00:24,000
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present in 9.5 releases and is
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easy to enable and build.
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7
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00:00:26,000 --> 00:00:29,000
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This demo runs under a stock
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Symbian OS 9.5 DevKit release.
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8
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00:00:29,000 --> 00:00:32,000
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We have simply enabled NGA,
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enabled PREQ1939,
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9
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00:00:32,000 --> 00:00:35,000
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rebuilt MMF, and added a
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simple demo application.
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10
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00:00:35,000 --> 00:00:38,000
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Detailed build info
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and this demo application is
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11
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00:00:38,000 --> 00:00:41,000
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available on request.
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12
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00:00:44,000 --> 00:00:47,000
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PREQ1939 requires that video
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playback uses graphics surfaces.
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13
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00:00:47,000 --> 00:00:50,000
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The actual subtitles however
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are rendered as UI graphics
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14
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00:00:50,000 --> 00:00:53,000
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Using a Content Rendering
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Plugin (CRP) in Window Server.
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15
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00:00:55,000 --> 00:00:58,000
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The PREQ delivery includes all
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MMF and API changes,
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16
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00:00:58,000 --> 00:01:01,000
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a product-quality CRP for
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subtitle rendering,
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17
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00:01:01,000 --> 00:01:04,000
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and a reference SRT subtitle
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renderer in the AVI controller.
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18
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00:01:06,000 --> 00:01:11,000
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This demo uses a video-only
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AVI file with MPEG-4 video
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19
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00:01:11,000 --> 00:01:14,000
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and a hand-written SRT
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subtitle file.
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20
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00:01:16,000 --> 00:01:19,000
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Real-world implementations
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are expected to use
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21
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00:01:19,000 --> 00:01:22,000
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3GPP Timed Text instead.
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22
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00:01:22,000 --> 00:01:25,000
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In any case, all subtitles are
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rendered in the controller and
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23
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00:01:25,000 --> 00:01:28,000
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displayed directly using a CRP.
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24
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00:01:28,000 --> 00:01:31,000
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The application is not on the
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data path at all, and has only
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25
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00:01:31,000 --> 00:01:34,000
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basic control functionality.
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26
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00:01:36,000 --> 00:01:59,000
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Thank you
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