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System Test Tab

The System test tab allows you to control the content generated from your XMT-O file.

To use the system test content control place the appropriate system test attribute on the elements in the XMT-O document. For example to use System Test Bitrate requires placing the systemBitrate on media appropriate to the desired bitrate.

<switch>
  <audio src="audio14k"  systemBitrate="14400" />
  <audio src="audio28k"  systemBitrate="28800" />
  <audio src="audio56k"  systemBitrate="56000" />
  <audio src="audio128k" systemBitrate="128000"/>
</switch>

The system test values are queried at conversion time and generate MPEG-4 content for the specified values. The converter does not generate a MPEG-4 file which queries the system test values at playback time. Thus MPEG-4 file generated is specific to the specified system test values.

The system test attributes are:

Audio Descriptions Whether or not audio descriptions should be rendered.
Closed Captions Specify whether a text equivalent of the audio portion of the presentation is displayed.
Overdub or Subtitle Specify whether subtitles or overdub is rendered. Overdub selects for substitution of one voice track for another, and subtitle means that the user prefers the display of text in language other than which is being used in the audio track.
CPU Specify the CPU on which the user agent may be running. Valid value names come from the _PR_SI_ARCHITECTURE constants defined by the mozilla project.
Valid CPU values are: alpha, arm, arm32, hppa1.1, m68k, mips, ppc, rs6000, vax, x86, or unknown.
Selecting the custom option allows typing any string for the CPU.
Operating System Specify operating the user agent may be running. Valid os value names come from the _PR_SI_ARCHITECTURE constants defined by the mozilla project.
Valid Operating System value names are: aix, beos, bsdi, dgux, freebsd, hpux, irix, linux, macos, ncr, nec, netbsd, nextstep, nto, openbsd, openvms, os2, osf, palmos, qnx, sinix, rhapsody, sco, solaris, sonly, sunos, unixware, win16, win32, win9x, winnt, wince, or unknown.
Selecting the custom option allows typing any string for the operating system.
Language Specify the language-country codes. This implementation uses two letter codes. Where la represents the language code and co represents the country code. e.g. en specifies the english language. en-gb specifies the english language (en) with Great Britian (gb) as the country. Valid values are a defined in [RFC1766].
The valid language codes are: aa, ab, af, am, ar, as, ay, az, ba, be, bg, bh, bi, bn, bo, br, ca, co, cs, cy, da, de, dz, el, en, eo, es, et, eu, fa, fi, fj, fo, fr, fy, ga, gd, gl, gn, gu, ha, he, hi, hr, hu, hy, ia, id, ie, ik, is, it, iu, ja, jw, ka, kk, kl, km, kn, ko, ks, ku, ky, la, ln, lo, lt, lv, mg, mi, mk, ml, mn, mo, mr, ms, mt, my, na, ne, nl, no, oc, om, or, pa, pl, ps, pt, qu, rm, rn, ro, ru, rw, sa, sd, sg, sh, si, sk, sl, sm, sn, so, sq, sr, ss, st, su, sv, sw, ta, te, tg, th, ti, tk, tl, tn, to, tr, ts, tt, tw, ug, uk, ur, uz, vi, vo, wo, xh, yi, yo, za, zh, or zu.
The valid country codes are: AF, AL, DZ, AS, AD, AO, AI, AQ, AG, AR, AM, AW, AU, AT, AZ, BS, BH, BD, BB, BY, BE, BZ, BJ, BM, BT, BO, BA, BW, BV, BR, IO, BN, BG, BF, BI, KH, CM, CA, CV, KY, CF, TD, CL, CN, CX, CC, CO, KM, CD, CG, CK, CR, CI, HR, CU, CY, CZ, DK, DJ, DM, DO, TL, EC, EG, SV, GQ, ER, EE, ET, FK, FO, FJ, FI, FR, FX, GF, PF, TF, GA, GM, GE, DE, GH, GI, GR, GL, GD, GP, GU, GT, GN, GW, GY, HT, HM, HN, HK, HU, IS, IN, ID, IR, IQ, IE, IL, IT, JM, JP, JO, KZ, KE, KI, KP, KR, KW, KG, LA, LV, LB, LS, LR, LY, LI, LT, LU, MO, MK, MG, MW, MY, MV, ML, MT, MH, MQ, MR, MU, YT, MX, FM, MD, MC, MN, MS, MA, MZ, MM, NA, NR, NP, NL, AN, NC, NZ, NI, NE, NG, NU, NF, MP, NO, OM, PK, PW, PS, PA, PG, PY, PE, PH, PN, PL, PT, PR, QA, RE, RO, RU, RW, KN, LC, VC, WS, SM, ST, SA, SN, SC, SL, SG, SK, SI, SB, SO, ZA, GS, ES, LK, SH, PM, SD, SR, SJ, SZ, SE, CH, SY, TW, TJ, TZ, TH, TG, TK, TO, TT, TN, TR, TM, TC, TV, UG, UA, AE, GB, US, UM, UY, UZ, VU, VA, VE, VN, VG, VI, WF, EH, YE, YU, ZM, or ZW.
Selecting the custom option allows typing any string for the language country code. Multiple languages can be specified by delimiting the language country code with spaces.
Component Indicate a URI that identifies a component of the playback system, e.g. user agent component/feature, number of audio channels, codec, HW MPEG decoder, etc. Valid values are strings containing one or more whitespace separated URI's.
Required Provides an extension mechanism for new elements or attributes. Valid values are a list of white-spaced, separated namespace prefix language extensions.
Screen Depth Specify the depth of the screen color palette in bits required for displaying the element. Valid values are integers greater than 0.
Screen Size Specify the screen screen size on which the user agent may be running. Select from the some common predefined sizes or choose the custom option to specify the desired width and hieght. Valid values are integers greater than 0.
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