Commit fd8f386f authored by Georgi Chorbadzhiyski's avatar Georgi Chorbadzhiyski

dvb/si: Add support for descriptor 0x4c (Time shifted service descriptor).

parent 478e9a18
......@@ -109,6 +109,7 @@ Supported DVB descriptors
* Descriptor 0x49: Country availability descriptor
* Descriptor 0x4a: Linkage descriptor (partially implemented)
* Descriptor 0x4b: NVOD reference descriptor
* Descriptor 0x4c: Time shifted service descriptor
* Descriptor 0x4d: Short event descriptor
* Descriptor 0x4e: Extended event descriptor
* Descriptor 0x52: Stream identifier descriptor
......
......@@ -14,7 +14,6 @@ so if you like something just do it and send a patch.
- Descriptor 0x6a: AC-3 descriptor
- Add support (parser, generator, example) for these DVB descriptors:
- Descriptor 0x4c: time_shifted_service_descriptor
- Descriptor 0x4f: time_shifted_event_descriptor
- Descriptor 0x50: component_descriptor
- Descriptor 0x51: mosaic_descriptor
......
/*****************************************************************************
* desc_4c.h: ETSI EN 300 468 Descriptor 0x4c: (Time shifted service 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_MPEG_DESC_4C_H__
#define __BITSTREAM_MPEG_DESC_4C_H__
#include <bitstream/common.h>
#include <bitstream/mpeg/psi/descriptors.h>
#ifdef __cplusplus
extern "C"
{
#endif
/*****************************************************************************
* Descriptor 0x4c: Time shifted service descriptor
*****************************************************************************/
#define DESC4C_HEADER_SIZE (DESC_HEADER_SIZE + 2)
static inline void desc4c_init(uint8_t *p_desc)
{
desc_set_tag(p_desc, 0x4c);
desc_set_length(p_desc, DESC4C_HEADER_SIZE - DESC_HEADER_SIZE);
}
static inline uint16_t desc4c_get_reference_sid(const uint8_t *p_desc)
{
return (p_desc[2] << 8) | p_desc[3];
}
static inline void desc4c_set_reference_sid(uint8_t *p_desc, uint16_t i_reference_sid)
{
p_desc[2] = (i_reference_sid >> 8) & 0xff;
p_desc[3] = i_reference_sid & 0xff;
}
static inline bool desc4c_validate(const uint8_t *p_desc)
{
return desc_get_length(p_desc) >= DESC4C_HEADER_SIZE - DESC_HEADER_SIZE;
}
static inline void desc4c_print(const uint8_t *p_desc, f_print pf_print,
void *opaque, print_type_t i_print_type)
{
switch (i_print_type) {
case PRINT_XML:
pf_print(opaque, "<TIME_SHIFTED_SERVICE_DESC reference_sid=\"%u\"/>",
desc4c_get_reference_sid(p_desc));
break;
default:
pf_print(opaque, " - desc 4c time_shifted_service reference_sid=%u",
desc4c_get_reference_sid(p_desc));
}
}
#ifdef __cplusplus
}
#endif
#endif
......@@ -46,6 +46,7 @@
#include <bitstream/dvb/si/desc_49.h>
#include <bitstream/dvb/si/desc_4a.h>
#include <bitstream/dvb/si/desc_4b.h>
#include <bitstream/dvb/si/desc_4c.h>
#include <bitstream/dvb/si/desc_4d.h>
#include <bitstream/dvb/si/desc_4e.h>
#include <bitstream/dvb/si/desc_52.h>
......
......@@ -564,7 +564,12 @@ static void build_desc4b(uint8_t *desc, bool b_available) {
desc_set_length(desc, ref_n - desc - DESC_HEADER_SIZE);
}
/* --- Descriptor 0x4c: time_shifted_service_descriptor */
/* DVB Descriptor 0x4c: time_shifted_service_descriptor */
static void build_desc4c(uint8_t *desc) {
desc4c_init(desc);
desc4c_set_reference_sid(desc, sid + 1000);
}
/* DVB Descriptor 0x4d: Short event descriptor */
static void build_desc4d(uint8_t *desc) {
char *event_name = "Major TV event";
......@@ -1332,6 +1337,9 @@ static void generate_sdt(void) {
desc = descs_get_desc(desc_loop, desc_counter++);
build_desc48(desc);
desc = descs_get_desc(desc_loop, desc_counter++);
build_desc4c(desc);
desc = descs_get_desc(desc_loop, desc_counter++);
build_desc5f(desc);
......
......@@ -141,6 +141,7 @@ static inline void descl_print(uint8_t *p_descl, uint16_t i_length,
CASE_DESC(49)
CASE_DESC(4a)
CASE_DESC(4b)
CASE_DESC(4c)
CASE_DESC_ICONV(4d)
CASE_DESC_ICONV(4e)
CASE_DESC(52)
......
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