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author | etobi <git@e-tobi.net> | 2013-09-03 09:48:41 +0200 |
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committer | etobi <git@e-tobi.net> | 2013-09-03 09:48:41 +0200 |
commit | ab959d7b4194715870128e616b8e29d4a101e488 (patch) | |
tree | 61a746231d30817be73416a7d67763fd677a1042 /lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h | |
parent | 6b350466c4902c5b137e0efaf1d189128a7f18f5 (diff) | |
download | linux-dvb-apps-753ce5b9809deed38d6db404dc72e1e0e8ac4b29.tar.gz |
Imported Upstream version 1.1.1+rev1207upstream/1.1.1+rev1207
Diffstat (limited to '')
-rw-r--r-- | lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h b/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h new file mode 100644 index 0000000..d79b48c --- /dev/null +++ b/lib/libucsi/dvb/mhp_data_broadcast_id_descriptor.h @@ -0,0 +1,110 @@ +/* + * section and descriptor parser + * + * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org) + * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net) + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA + */ + +#ifndef _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR +#define _UCSI_DVB_MHP_DATA_BROADCAST_ID_DESCRIPTOR 1 + +#ifdef __cplusplus +extern "C" +{ +#endif + +#ifndef _UCSI_DVB_DATA_BROADCAST_ID_DESCRIPTOR +#error Must include dvb/data_broadcast_id_descriptor.h first +#endif + +/** + * Broadcast IDs for MHP. + */ +enum { + DVB_BROADCAST_ID_MHP_OBJECT_CAROUSEL = 0x00f0, + DVB_BROADCAST_ID_MHP_MPE = 0x00f1, +}; + +/** + * dvb_mhp_data_broadcast_id_descriptor structure. + */ +struct dvb_mhp_data_broadcast_id_descriptor { + struct dvb_data_broadcast_id_descriptor d; + /* uint16_t application_type[] */ +} __ucsi_packed; + +/** + * Process a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d Generic descriptor structure. + * @return dvb_mhp_data_broadcast_id_descriptor pointer, or NULL on error. + */ +static inline struct dvb_mhp_data_broadcast_id_descriptor* + dvb_mhp_data_broadcast_id_descriptor_codec(struct dvb_data_broadcast_id_descriptor* d) +{ + uint8_t * buf; + int len; + int pos = 0; + struct dvb_mhp_data_broadcast_id_descriptor *res = + (struct dvb_mhp_data_broadcast_id_descriptor *) d; + + if ((res->d.data_broadcast_id < 0xf0) || (res->d.data_broadcast_id > 0xfe)) + return NULL; + + buf = dvb_data_broadcast_id_descriptor_id_selector_byte(d); + len = dvb_data_broadcast_id_descriptor_id_selector_byte_length(d); + + if (len % 2) + return NULL; + + while(pos < len) { + bswap16(buf+pos); + pos+=2; + } + + return res; +} + +/** + * Accessor for the application_type field of a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d dvb_mhp_data_broadcast_id_descriptor pointer. + * @return Pointer to the field. + */ +static inline uint16_t * + dvb_mhp_data_broadcast_id_descriptor_id_application_type(struct dvb_mhp_data_broadcast_id_descriptor *d) +{ + return (uint16_t *) dvb_data_broadcast_id_descriptor_id_selector_byte((struct dvb_data_broadcast_id_descriptor*) d); +} + +/** + * Determine the number of entries in the application_type field of a dvb_mhp_data_broadcast_id_descriptor. + * + * @param d dvb_data_broadcast_id_descriptor pointer. + * @return Length of the field in bytes. + */ +static inline int + dvb_mhp_data_broadcast_id_descriptor_id_application_type_count(struct dvb_mhp_data_broadcast_id_descriptor *d) +{ + return dvb_data_broadcast_id_descriptor_id_selector_byte_length((struct dvb_data_broadcast_id_descriptor*) d) >> 1; +} + +#ifdef __cplusplus +} +#endif + +#endif |