kopia lustrzana https://gitlab.com/sane-project/backends
114 wiersze
4.4 KiB
C
114 wiersze
4.4 KiB
C
/*
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* Worldwide channel/frequency list
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*
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* Nathan Laredo (laredo@broked.net)
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*
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* Frequencies are given in kHz
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*/
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#define NTSC_AUDIO_CARRIER 4500
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#define PAL_AUDIO_CARRIER_I 6000
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#define PAL_AUDIO_CARRIER_BGHN 5500
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#define PAL_AUDIO_CARRIER_MN 4500
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#define PAL_AUDIO_CARRIER_D 6500
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#define SEACAM_AUDIO_DKK1L 6500
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#define SEACAM_AUDIO_BG 5500
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/* NICAM 728 32-kHz, 14-bit digital stereo audio is transmitted in 1ms frames
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containing 8 bits frame sync, 5 bits control, 11 bits additional data, and
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704 bits audio data. The bit rate is reduced by transmitting only 10 bits
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plus parity of each 14 bit sample, the largest sample in a frame determines
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which 10 bits are transmitted. The parity bits for audio samples also
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specify the scaling factor used for that channel during that frame. The
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companeded audio data is interleaved to reduce the influence of dropouts
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and the whole frame except for sync bits is scrambled for spectrum shaping.
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Data is modulated using QPSK, at below following subcarrier freqs */
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#define NICAM728_PAL_BGH 5850
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#define NICAM728_PAL_I 6552
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/* COMPREHENSIVE LIST OF FORMAT BY COUNTRY
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(M) NTSC used in:
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Antigua, Aruba, Bahamas, Barbados, Belize, Bermuda, Bolivia, Burma,
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Canada, Chile, Colombia, Costa Rica, Cuba, Curacao, Dominican Republic,
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Ecuador, El Salvador, Guam Guatemala, Honduras, Jamaica, Japan,
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South Korea, Mexico, Montserrat, Myanmar, Nicaragua, Panama, Peru,
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Philippines, Puerto Rico, St Christopher and Nevis, Samoa, Suriname,
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Taiwan, Trinidad/Tobago, United States, Venezuela, Virgin Islands
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(B) PAL used in:
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Albania, Algeria, Australia, Austria, Bahrain, Bangladesh, Belgium,
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Bosnia-Herzegovinia, Brunei Darussalam, Cambodia, Cameroon, Croatia,
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Cyprus, Denmark, Egypt, Ethiopia, Equatorial Guinea, Finland, Germany,
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Ghana, Gibraltar, Greenland, Iceland, India, Indonesia, Israel, Italy,
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Jordan, Kenya, Kuwait, Liberia, Libya, Luxembourg, Malaysa, Maldives,
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Malta, Nepal, Netherlands, New Zeland, Nigeria, Norway, Oman, Pakistan,
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Papua New Guinea, Portugal, Qatar, Sao Tome and Principe, Saudi Arabia,
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Seychelles, Sierra Leone, Singapore, Slovenia, Somali, Spain,
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Sri Lanka, Sudan, Swaziland, Sweden, Switzeland, Syria, Thailand,
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Tunisia, Turkey, Uganda, United Arab Emirates, Yemen
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(N) PAL used in: (Combination N = 4.5MHz audio carrier, 3.58MHz burst)
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Argentina (Combination N), Paraguay, Uruguay
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(M) PAL (525/60, 3.57MHz burst) used in:
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Brazil
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(G) PAL used in:
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Albania, Algeria, Austria, Bahrain, Bosnia/Herzegovinia, Cambodia,
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Cameroon, Croatia, Cyprus, Denmark, Egypt, Ethiopia, Equatorial Guinea,
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Finland, Germany, Gibraltar, Greenland, Iceland, Israel, Italy, Jordan,
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Kenya, Kuwait, Liberia, Libya, Luxembourg, Malaysia, Monaco,
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Mozambique, Netherlands, New Zealand, Norway, Oman, Pakistan,
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Papa New Guinea, Portugal, Qatar, Romania, Sierra Leone, Singapore,
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Slovenia, Somalia, Spain, Sri Lanka, Sudan, Swaziland, Sweeden,
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Switzerland, Syria, Thailand, Tunisia, Turkey, United Arab Emirates,
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Yemen, Zambia, Zimbabwe
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(D) PAL used in:
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China, North Korea, Romania, Czech Republic
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(H) PAL used in:
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Belgium
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(I) PAL used in:
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Angola, Botswana, Gambia, Guinea-Bissau, Hong Kong, Ireland, Lesotho,
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Malawi, Nambia, Nigeria, South Africa, Tanzania, United Kingdom,
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Zanzibar
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(B) SECAM used in:
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Djibouti, Greece, Iran, Iraq, Lebanon, Mali, Mauritania, Mauritus,
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Morocco
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(D) SECAM used in:
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Afghanistan, Armenia, Azerbaijan, Belarus, Bulgaria,
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Estonia, Georgia, Hungary, Zazakhstan, Lithuania, Mongolia, Moldova,
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Poland, Russia, Slovak Republic, Ukraine, Vietnam
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(G) SECAM used in:
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Greecem Iran, Iraq, Mali, Mauritus, Morocco, Saudi Arabia
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(K) SECAM used in:
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Armenia, Azerbaijan, Bulgaria, Estonia, Georgia,
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Hungary, Kazakhstan, Lithuania, Madagascar, Moldova, Poland, Russia,
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Slovak Republic, Ukraine, Vietnam
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(K1) SECAM used in:
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Benin, Burkina Faso, Burundi, Chad, Cape Verde, Central African
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Republic, Comoros, Congo, Gabon, Madagascar, Niger, Rwanda, Senegal,
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Togo, Zaire
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(L) SECAM used in:
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France
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*/
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/* --------------------------------------------------------------------- */
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struct CHANLIST
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{
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char *name;
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int freq;
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};
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struct CHANLISTS
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{
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char *name;
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struct CHANLIST *list;
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int count;
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};
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#define CHAN_COUNT(x) (sizeof(x)/sizeof(struct CHANLIST))
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/* --------------------------------------------------------------------- */
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extern struct CHANLISTS chanlists[];
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extern struct STRTAB chanlist_names[];
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extern int chantab;
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extern struct CHANLIST *chanlist;
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extern int chancount;
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