72 lines
1.8 KiB
C
72 lines
1.8 KiB
C
/*
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* common.c: IPTV plugin for the Video Disk Recorder
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*
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* See the README file for copyright information and how to reach the author.
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*
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*/
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#include <vdr/tools.h>
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#include "common.h"
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uint16_t ts_pid(const uint8_t *buf)
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{
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return (uint16_t)(((buf[1] & 0x1f) << 8) + buf[2]);
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}
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uint8_t payload(const uint8_t *tsp)
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{
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if (!(tsp[3] & 0x10)) // no payload?
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return 0;
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if (tsp[3] & 0x20) { // adaptation field?
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if (tsp[4] > 183) // corrupted data?
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return 0;
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else
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return (uint8_t)((184 - 1) - tsp[4]);
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}
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return 184;
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}
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const char *id_pid(const u_short Pid)
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{
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for (int i = 0; i < SECTION_FILTER_TABLE_SIZE; ++i) {
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if (Pid == section_filter_table[i].pid)
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return section_filter_table[i].tag;
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}
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return "---";
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}
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int select_single_desc(int descriptor, const int usecs, const bool selectWrite)
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{
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// Wait for data
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struct timeval tv;
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tv.tv_sec = 0;
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tv.tv_usec = usecs;
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// Use select
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fd_set fds;
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FD_ZERO(&fds);
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FD_SET(descriptor, &fds);
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int retval = 0;
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if (selectWrite)
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retval = select(descriptor + 1, NULL, &fds, NULL, &tv);
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else
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retval = select(descriptor + 1, &fds, NULL, NULL, &tv);
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// Check if error
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ERROR_IF_RET(retval < 0, "select()", return retval);
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return retval;
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}
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const section_filter_table_type section_filter_table[SECTION_FILTER_TABLE_SIZE] =
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{
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/* description tag pid tid mask */
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{trNOOP("PAT (0x00)"), "PAT", 0x00, 0x00, 0xFF},
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{trNOOP("NIT (0x40)"), "NIT", 0x10, 0x40, 0xFF},
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{trNOOP("SDT (0x42)"), "SDT", 0x11, 0x42, 0xFF},
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{trNOOP("EIT (0x4E/0x4F)"), "EIT", 0x12, 0x4E, 0xFE},
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{trNOOP("EIT (0x5X)"), "EIT", 0x12, 0x50, 0xF0},
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{trNOOP("EIT (0x6X)"), "EIT", 0x12, 0x60, 0xF0},
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{trNOOP("TDT (0x70)"), "TDT", 0x14, 0x70, 0xFF},
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};
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