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MMS(Multimedia Message System)支持的mdia总结(1)
1. Image
要求device可支持的最大分辨率：160*120 pixels--Image Basic
640*480 pixels--Image Rich, Video Basic and Video Rich
可支持的字节数(kb)：30--text; 30--basic image; 100--rich image;100--basic video;
300--rich video 2. PIM(Personal Information Management) 可作为附件传送
vCard version 2.1 (mime-type: text/x-vCard)
vCalendar version 1.0 (mime-type: text/x-vCalendar) 3. Video
4. DRM
可支持DRM forward lock 格式、DCF 格式
DCF mimetype: application/vnd.oma.drm.dcf
fowardlock: application/vnd.oma.drm.message 例子1(forward lock)： From:user@example.com
To:+40123456789/TYPE=PLMN
Subject:Hi!
X-MMS-Version:1.0
Content-Type:multipart/related;boundary=ID_1234567
--ID_1234567
Content-Type:application/smil
<smil>
:
</smil>
--ID_1234567
Content-Type:application/vnd.oma.drm.message;boundary=PUTJTBYRBYTYBV
Content-Location:drmimage.dm
--PUTJTBYRBYTYBV
Content-Type:image/jpeg
Content-Transfer-Encoding:binary
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
--PUTJTBYRBYTYBV--
--ID_1234567-- 例子2(DCF)：
From:customer@mmsprovider.com
To:anothercustomer@anothermmsprovider.com
Subject:MMS message with DRM content
X-MMS-Version:1.2
...[More MMS headers]
Content-Type:multipart/related;boundary=firststring;start=secondstring
--firststring
Content-ID:secondstring
Content-Type:application/smil
...[SMIL doc]
--firststring
Content-ID:same-reference-as-in-SMIL-doc
Content-Type: application/vnd.oma.drm.dcf
...[DCF containing Content-ID:same-reference-as-used-in-associated-ROs]
--firststring-- 5. SMIL(Synchronized Media Integration Language)
当MM内容包含SMIL格式的表现层时，content type必须为application/vnd.wap.multipart.related，否则使用application/vnd.wap.multipart.mixed 例子1（包含两个slide,其中一个包含一段video）
<smil>
<head>
<layout>
<root-layout height="200" width=”176" />
<region id="Image" height="144" width="176” />
<region id="Text" height="56" width="176" fit="scroll" />
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