Commit f82f7bff authored by Georgi Chorbadzhiyski's avatar Georgi Chorbadzhiyski

dvb/si: Add support for descriptor 0x54 (Content descriptor).

parent a4d5b910
/*****************************************************************************
* desc_54.h: ETSI EN 300 468 Descriptor 0x54: Content descriptor
*****************************************************************************
* Copyright (C) 2011 Unix Solutions Ltd.
*
* Authors: Georgi Chorbadzhiyski <georgi@unixsol.org>
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject
* to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*****************************************************************************/
/*
* Normative references:
* - ETSI EN 300 468 V1.11.1 (2010-04) (SI in DVB systems)
*/
#ifndef __BITSTREAM_DVB_DESC_54_H__
#define __BITSTREAM_DVB_DESC_54_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x54: Content descriptor
*****************************************************************************/
#define DESC54_HEADER_SIZE DESC_HEADER_SIZE
#define DESC54_CONTENT_SIZE 2
static inline void desc54_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x54);
}
static inline uint8_t *desc54_get_content(uint8_t *p_desc, uint8_t n)
{
uint8_t *p_desc_n = p_desc + DESC54_HEADER_SIZE + n * DESC54_CONTENT_SIZE;
if (p_desc_n + DESC54_CONTENT_SIZE - p_desc
> desc_get_length(p_desc) + DESC54_HEADER_SIZE)
return NULL;
return p_desc_n;
}
static inline uint8_t desc54n_get_content_l1(uint8_t *p_desc_n)
{
return p_desc_n[0] >> 4;
}
static inline void desc54n_set_content_l1(uint8_t *p_desc_n, uint8_t i_content_l1)
{
p_desc_n[0] = (i_content_l1 << 4) | (p_desc_n[0] & 0x0f);
}
static inline uint8_t desc54n_get_content_l2(uint8_t *p_desc_n)
{
return p_desc_n[0] & 0x0f;
}
static inline void desc54n_set_content_l2(uint8_t *p_desc_n, uint8_t i_content_l2)
{
p_desc_n[0] = (i_content_l2 & 0x0f) | (p_desc_n[0] & 0xf0);
}
static inline uint8_t desc54n_get_user(uint8_t *p_desc_n)
{
return p_desc_n[1];
}
static inline void desc54n_set_user(uint8_t *p_desc_n, uint8_t i_user)
{
p_desc_n[1] = i_user;
}
static inline bool desc54_validate(const uint8_t *p_desc)
{
return !(desc_get_length(p_desc) % DESC54_CONTENT_SIZE);
}
static inline void desc54_print(uint8_t *p_desc, f_print pf_print,
void *opaque, print_type_t i_print_type)
{
uint8_t j = 0;
uint8_t *p_desc_n;
while ((p_desc_n = desc54_get_content(p_desc, j)) != NULL) {
j++;
switch (i_print_type) {
case PRINT_XML:
pf_print(opaque, "<CONTENT_DESC content_l1=\"%u\" content_l2=\"%u\" user=\"%u\"/>",
desc54n_get_content_l1(p_desc_n),
desc54n_get_content_l2(p_desc_n),
desc54n_get_user(p_desc_n)
);
break;
default:
pf_print(opaque," - desc 54 content content_l1=%u content_l2=%u user=%u",
desc54n_get_content_l1(p_desc_n),
desc54n_get_content_l2(p_desc_n),
desc54n_get_user(p_desc_n)
);
}
}
}
#ifdef __cplusplus
}
#endif
#endif
......@@ -45,6 +45,7 @@
#include <bitstream/dvb/si/desc_4d.h>
#include <bitstream/dvb/si/desc_4e.h>
#include <bitstream/dvb/si/desc_52.h>
#include <bitstream/dvb/si/desc_54.h>
#include <bitstream/dvb/si/desc_56.h>
#include <bitstream/dvb/si/desc_59.h>
#include <bitstream/dvb/si/desc_5a.h>
......
......@@ -128,6 +128,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
CASE_DESC_ICONV(4d)
CASE_DESC_ICONV(4e)
CASE_DESC(52)
CASE_DESC(54)
CASE_DESC(56)
CASE_DESC(59)
CASE_DESC(5a)
......
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