Updated EIT code to (hopefully) more robust implementation and included the primary service checking.
This commit is contained in:
Adam Sutton
parent
d9f6fd39e9
commit
d6ca0eb120
1 changed files with 308 additions and 241 deletions
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@ -38,6 +38,24 @@ typedef struct eit_status
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int sec;
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} eit_status_t;
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typedef struct eit_event
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{
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char title[256];
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char summary[256];
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char desc[2000];
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char *default_charset;
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htsmsg_t *extra;
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epg_genre_list_t *genre;
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uint8_t hd, ws;
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uint8_t ad, st, ds;
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uint8_t bw;
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} eit_event_t;
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/* ************************************************************************
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* Diagnostics
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* ***********************************************************************/
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@ -61,86 +79,304 @@ static void _eit_dtag_dump ( uint8_t dtag, uint8_t dlen, uint8_t *buf )
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}
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/* ************************************************************************
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* Processing
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* EIT Event descriptors
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* ***********************************************************************/
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/**
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* DVB Descriptor; Short Event
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/*
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* Short Event - 0x4d
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*/
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static int
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dvb_desc_short_event(uint8_t *ptr, int len,
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char *title, size_t titlelen,
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char *desc, size_t desclen,
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char *dvb_default_charset)
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static int _eit_desc_short_event
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( uint8_t *ptr, int len, eit_event_t *ev )
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{
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int r;
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if(len < 4)
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return -1;
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ptr += 3; len -= 3;
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if ( len < 5 ) return -1;
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if((r = dvb_get_string_with_len(title, titlelen, ptr, len, dvb_default_charset)) < 0)
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return -1;
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ptr += r; len -= r;
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/* Language (skip) */
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len -= 3;
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ptr += 3;
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if((r = dvb_get_string_with_len(desc, desclen, ptr, len, dvb_default_charset)) < 0)
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/* Title */
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if ( (r = dvb_get_string_with_len(ev->title, sizeof(ev->title),
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ptr, len, ev->default_charset)) < 0 )
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return -1;
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len -= r;
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ptr += r;
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if ( len < 1 ) return -1;
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/* Summary */
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if ( (r = dvb_get_string_with_len(ev->summary, sizeof(ev->summary),
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ptr, len, ev->default_charset)) < 0 )
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return -1;
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return 0;
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}
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/**
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* DVB Descriptor; Extended Event
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/*
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* Extended Event - 0x4e
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*/
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static int
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dvb_desc_extended_event(uint8_t *ptr, int len,
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char *desc, size_t desclen,
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htsmsg_t *extra,
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char *dvb_default_charset)
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static int _eit_desc_ext_event
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( uint8_t *ptr, int len, eit_event_t *ev )
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{
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int ilen, nitems = ptr[4];
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int r, nitem;
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char ikey[256], ival[256];
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if (len < 8) return -1;
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ptr += 5;
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len -= 5;
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/* key/value items */
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while (nitems-- > 0) {
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if (len < 6) return -1;
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/* key */
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ilen = *ptr;
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if (ilen+1 > len) return -1;
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if(dvb_get_string_with_len(ikey, sizeof(ikey),
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ptr+1, ilen,
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dvb_default_charset) < 0) return -1;
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/* Descriptor numbering (skip) */
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len -= 1;
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ptr += 1;
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/* Language (skip) */
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len -= 3;
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ptr += 3;
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/* Key/Value items */
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nitem = *ptr;
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len -= 1;
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ptr += 1;
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if (len < (2 * nitem) + 1) return -1;
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while (nitem--) {
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/* Key */
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if ( (r = dvb_get_string_with_len(ikey, sizeof(ikey),
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ptr, len, ev->default_charset)) < 0 )
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return -1;
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ptr += (ilen + 1);
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len -= (ilen + 1);
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/* value */
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ilen = *ptr;
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if (ilen+1 > len) return -1;
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if(dvb_get_string_with_len(ival, sizeof(ival),
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ptr, ilen,
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dvb_default_charset) < 0) return -1;
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ptr += (ilen + 1);
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len -= (ilen + 1);
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len -= r;
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ptr += r;
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// TODO: should this extend existing strings?
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htsmsg_add_str(extra, ikey, ival);
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/* Value */
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if ( (r = dvb_get_string_with_len(ival, sizeof(ival),
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ptr, len, ev->default_charset)) < 0 )
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return -1;
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len -= r;
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ptr += r;
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/* Store */
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// TODO: extend existing?
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if (*ikey && *ival)
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htsmsg_add_str(ev->extra, ikey, ival);
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}
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/* raw text (append) */
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ilen = *ptr;
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if (ilen+1 > len) return -1;
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if(dvb_get_string_with_len(desc + strlen(desc),
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desclen - strlen(desc),
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ptr+1, ilen,
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dvb_default_charset) < 0) return -1;
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/* Description */
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if ( dvb_get_string_with_len(ev->desc + strlen(ev->desc),
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sizeof(ev->desc) - strlen(ev->desc),
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ptr, len,
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ev->default_charset) < 0 )
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return -1;
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return 0;
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}
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/*
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* Component Descriptor - 0x50
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*/
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static int _eit_desc_component
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( uint8_t *ptr, int len, eit_event_t *ev )
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{
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uint8_t c, t;
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if (len < 6) return -1;
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/* Stream Content and Type */
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c = *ptr & 0x0f;
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t = ptr[1];
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/* MPEG2 (video) */
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if (c == 0x1) {
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if (t > 0x08 && t < 0x11) {
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ev->hd = 1;
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if ( t != 0x09 && t != 0x0d )
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ev->ws = 1;
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} else if (t == 0x02 || t == 0x03 || t == 0x04 ||
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t == 0x06 || t == 0x07 || t == 0x08 ) {
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ev->ws = 1;
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}
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/* MPEG2 (audio) */
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} else if (c == 0x2) {
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/* Described */
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if (t == 0x40 || t == 0x41)
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ev->ad = 1;
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/* Misc */
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} else if (c == 0x3) {
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if (t == 0x1 || (t >= 0x10 && t <= 0x14) || (t >= 0x20 && t <= 0x24))
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ev->st = 1;
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else if (t == 0x30 || t == 0x31)
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ev->ds = 1;
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/* H264 */
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} else if (c == 0x5) {
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if (t == 0x0b || t == 0x0c || t == 0x10)
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ev->hd = ev->ws = 1;
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else if (t == 0x03 || t == 0x04 || t == 0x07 || t == 0x08)
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ev->ws = 1;
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/* AAC */
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} else if ( c == 0x6 ) {
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/* Described */
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if (t == 0x40 || t == 0x44)
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ev->ad = 1;
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}
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return 0;
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}
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/*
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* Content Descriptor - 0x54
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*/
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static int _eit_desc_content
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( uint8_t *ptr, int len, eit_event_t *ev )
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{
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while (len > 1) {
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if (*ptr == 0xb1)
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ev->bw = 1;
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else if (*ptr < 0xb0) {
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if (!ev->genre) ev->genre = calloc(1, sizeof(epg_genre_list_t));
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epg_genre_list_add_by_eit(ev->genre, *ptr);
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}
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len -= 2;
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ptr += 2;
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}
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return 0;
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}
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/* ************************************************************************
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* EIT Event
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* ***********************************************************************/
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static int _eit_process_event
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( epggrab_module_t *mod, int tableid,
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service_t *svc, uint8_t *ptr, int len,
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int *resched, int *save )
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{
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int save2 = 0;
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int ret, dllen;
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time_t start, stop;
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uint16_t eid;
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uint8_t dtag, dlen;
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epg_broadcast_t *ebc;
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epg_episode_t *ee;
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eit_event_t ev;
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if ( len < 12 ) return -1;
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/* Core fields */
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eid = ptr[0] << 8 | ptr[1];
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start = dvb_convert_date(&ptr[2]);
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stop = start + bcdtoint(ptr[7] & 0xff) * 3600 +
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bcdtoint(ptr[8] & 0xff) * 60 +
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bcdtoint(ptr[9] & 0xff);
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dllen = ((ptr[10] & 0x0f) << 8) | ptr[11];
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len -= 12;
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ptr += 12;
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if ( len < dllen ) return -1;
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ret = 12 + dllen;
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/* Find broadcast */
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ebc = epg_broadcast_find_by_time(svc->s_ch, start, stop, eid, 1, &save2);
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if (!ebc) return dllen + 12;
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tvhlog(LOG_DEBUG, "eit", "process eid %d event %p %"PRIu64" on %s",
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eid, ebc, ebc->id, svc->s_ch->ch_name);
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/* Mark re-schedule detect (only now/next) */
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if (save2 && tableid < 0x50) *resched = 1;
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*save |= save2;
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/* Process tags */
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memset(&ev, 0, sizeof(ev));
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ev.default_charset = svc->s_dvb_default_charset;
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while (dllen > 2) {
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int r;
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dtag = ptr[0];
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dlen = ptr[1];
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dllen -= 2;
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ptr += 2;
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if (dllen < dlen) return ret;
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switch (dtag) {
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case DVB_DESC_SHORT_EVENT:
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r = _eit_desc_short_event(ptr, dlen, &ev);
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break;
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case DVB_DESC_EXT_EVENT:
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r = _eit_desc_ext_event(ptr, dlen, &ev);
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break;
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case DVB_DESC_CONTENT:
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r = _eit_desc_content(ptr, dlen, &ev);
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break;
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case DVB_DESC_COMPONENT:
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r = _eit_desc_component(ptr, dlen, &ev);
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break;
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#if TODO_AGE_RATING
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case DVB_DESC_PARENTAL_RAT:
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r = _eit_desc_parental(ptr, dlen, &ev);
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break;
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#endif
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default:
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r = 0;
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_eit_dtag_dump(dtag, dlen, ptr);
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break;
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}
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if (r < 0) return ret;
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dllen -= dlen;
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ptr += dlen;
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}
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/* Metadata */
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*save |= epg_broadcast_set_is_hd(ebc, ev.hd, mod);
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*save |= epg_broadcast_set_is_widescreen(ebc, ev.ws, mod);
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*save |= epg_broadcast_set_is_audio_desc(ebc, ev.ad, mod);
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*save |= epg_broadcast_set_is_subtitled(ebc, ev.st, mod);
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*save |= epg_broadcast_set_is_deafsigned(ebc, ev.ds, mod);
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/* Create episode */
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ee = ebc->episode;
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if ( !ee ) {
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char *uri;
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uri = epg_hash(ev.title, ev.summary, ev.desc);
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if (uri) {
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if ((ee = epg_episode_find_by_uri(uri, 1, save)))
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*save |= epg_broadcast_set_episode(ebc, ee, mod);
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free(uri);
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}
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}
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/* Episode data */
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if (ee) {
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*save |= epg_episode_set_is_bw(ee, ev.bw, mod);
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if ( *ev.title )
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*save |= epg_episode_set_title(ee, ev.title, mod);
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if ( *ev.summary )
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*save |= epg_episode_set_summary(ee, ev.summary, mod);
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if ( *ev.desc )
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*save |= epg_episode_set_description(ee, ev.desc, mod);
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if ( ev.genre )
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*save |= epg_episode_set_genre(ee, ev.genre, mod);
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#if TODO_ADD_EXTRA
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if ( extra )
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*save |= epg_episode_set_extra(ee, extra, mod);
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#endif
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}
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/* Tidy up */
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if (ev.extra) free(ev.extra);
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if (ev.genre) epg_genre_list_destroy(ev.genre);
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return ret;
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}
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static int _eit_callback
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( th_dvb_mux_instance_t *tdmi, uint8_t *ptr, int len,
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uint8_t tableid, void *opaque )
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@ -149,19 +385,9 @@ static int _eit_callback
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epggrab_ota_mux_t *ota;
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th_dvb_adapter_t *tda;
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service_t *svc;
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channel_t *ch;
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epg_broadcast_t *ebc;
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epg_episode_t *ee;
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epg_genre_list_t *egl = NULL;
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eit_status_t *sta;
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int resched = 0, save = 0, save2 = 0, dllen, dtag, dlen;
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uint16_t tsid, sid, eid;
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uint8_t bw, hd, ws, ad, ds, st;
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time_t start, stop;
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char title[256];
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char summary[256];
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char desc[5000];
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htsmsg_t *extra;
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int resched = 0, save = 0;
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uint16_t tsid, sid;
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/* Invalid */
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if(tableid < 0x4e || tableid > 0x6f || len < 11)
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@ -169,7 +395,7 @@ static int _eit_callback
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/* Get OTA */
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ota = epggrab_ota_find((epggrab_module_ota_t*)mod, tdmi);
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if (!ota || !ota->status) return 0;
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if (!ota || !ota->status) return -1;
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sta = ota->status;
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/* Already complete */
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@ -187,14 +413,16 @@ static int _eit_callback
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sta->sec = ptr[3];
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/* Complete */
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} else if (sta->tid == tableid && sta->sec == ptr[3] && sta->tsid == tsid && sta->sid == sid) {
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} else if (sta->tid == tableid &&
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sta->sec == ptr[3] &&
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sta->tsid == tsid &&
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sta->sid == sid) {
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epggrab_ota_complete(ota);
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return 0;
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}
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/* Don't process */
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if((ptr[2] & 1) == 0)
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return 0;
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if((ptr[2] & 1) == 0) return 0;
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/* Get transport stream */
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// Note: tableid=0x4f,0x60-0x6f is other TS
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@ -209,11 +437,14 @@ static int _eit_callback
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/* Get service */
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svc = dvb_transport_find(tdmi, sid, 0, NULL);
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if (!svc || !svc->s_enabled || !(ch = svc->s_ch)) return 0;
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if (!svc || !svc->s_enabled || !svc->s_ch) return 0;
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/* Ignore (disabled) */
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if (!svc->s_dvb_eit_enable) return 0;
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/* Ignore (not primary EPG service) */
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if (!service_is_primary_epg(svc)) return 0;
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/* Register as interesting */
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if (tableid < 0x50)
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epggrab_ota_register(ota, 20, 300); // 20s grab, 5min interval
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@ -232,177 +463,13 @@ static int _eit_callback
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/* Process events */
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len -= 11;
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ptr += 11;
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while(len >= 12) {
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eid = ptr[0] << 8 | ptr[1];
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start = dvb_convert_date(&ptr[2]);
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stop = start + bcdtoint(ptr[7] & 0xff) * 3600 +
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bcdtoint(ptr[8] & 0xff) * 60 +
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bcdtoint(ptr[9] & 0xff);
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dllen = ((ptr[10] & 0x0f) << 8) | ptr[11];
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len -= 12;
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ptr += 12;
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if(dllen > len) break;
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/* Get the event */
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ebc = epg_broadcast_find_by_time(ch, start, stop, eid, 1, &save2);
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if (!ebc) {
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len -= dllen;
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ptr += dllen;
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continue;
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}
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tvhlog(LOG_DEBUG, "eit", "process tid 0x%02x eid %d event %p %"PRIu64" on %s", tableid, eid, ebc, ebc->id, ch->ch_name);
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/* Mark re-schedule detect (only now/next) */
|
||||
if (save2 && tableid < 0x50) resched = 1;
|
||||
|
||||
/* Process tags */
|
||||
*title = *summary = *desc = 0;
|
||||
extra = NULL;
|
||||
hd = ws = bw = ad = st = ds = 0;
|
||||
while(dllen > 0) {
|
||||
dtag = ptr[0];
|
||||
dlen = ptr[1];
|
||||
|
||||
len -= 2; ptr += 2; dllen -= 2;
|
||||
|
||||
if(dlen > len) break;
|
||||
|
||||
switch(dtag) {
|
||||
|
||||
/* Short descriptor (title/summary) */
|
||||
case DVB_DESC_SHORT_EVENT:
|
||||
dvb_desc_short_event(ptr, dlen,
|
||||
title, sizeof(title),
|
||||
summary, sizeof(summary),
|
||||
svc->s_dvb_default_charset);
|
||||
break;
|
||||
|
||||
/* Extended (description) */
|
||||
case DVB_DESC_EXT_EVENT:
|
||||
if (!extra) extra = htsmsg_create_map();
|
||||
dvb_desc_extended_event(ptr, dlen,
|
||||
desc, sizeof(desc),
|
||||
extra,
|
||||
svc->s_dvb_default_charset);
|
||||
break;
|
||||
|
||||
/* Content type */
|
||||
case DVB_DESC_CONTENT:
|
||||
while (dlen > 0) {
|
||||
ptr += 2;
|
||||
dlen -= 2;
|
||||
if ( *ptr == 0xb1 )
|
||||
bw = 1;
|
||||
else if ( *ptr < 0xb0 ) {
|
||||
if (!egl) egl = calloc(1, sizeof(epg_genre_list_t));
|
||||
epg_genre_list_add_by_eit(egl, *ptr);
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
/* Component descriptor */
|
||||
case DVB_DESC_COMPONENT: {
|
||||
uint8_t c = *ptr & 0x0f;
|
||||
uint8_t t = ptr[1];
|
||||
|
||||
/* MPEG2 (video) */
|
||||
if (c == 0x1) {
|
||||
if (t > 0x08 && t < 0x11) {
|
||||
hd = 1;
|
||||
if ( t != 0x09 && t != 0x0d )
|
||||
ws = 1;
|
||||
} else if (t == 0x02 || t == 0x03 || t == 0x04 ||
|
||||
t == 0x06 || t == 0x07 || t == 0x08 ) {
|
||||
ws = 1;
|
||||
}
|
||||
|
||||
/* MPEG2 (audio) */
|
||||
} else if (c == 0x2) {
|
||||
|
||||
/* Described */
|
||||
if (t == 0x40 || t == 0x41)
|
||||
ad = 1;
|
||||
|
||||
/* Subtitles */
|
||||
} else if (c == 0x3) {
|
||||
st = 1;
|
||||
|
||||
/* H264 */
|
||||
} else if (c == 0x5) {
|
||||
if (t == 0x0b || t == 0x0c || t == 0x10)
|
||||
hd = ws = 1;
|
||||
else if (t == 0x03 || t == 0x04 || t == 0x07 || t == 0x08)
|
||||
ws = 1;
|
||||
|
||||
/* AAC */
|
||||
} else if ( c == 0x6 ) {
|
||||
|
||||
/* Described */
|
||||
if (t == 0x40 || t == 0x44)
|
||||
ad = 1;
|
||||
}
|
||||
}
|
||||
break;
|
||||
|
||||
/* Parental Rating */
|
||||
#if TODO_AGE_RATING
|
||||
case DVB_DESC_PARENTAL_RAT:
|
||||
if (*ptr > 0 && *ptr < 15)
|
||||
minage = *ptr + 3;
|
||||
#endif
|
||||
|
||||
/* Ignore */
|
||||
default:
|
||||
_eit_dtag_dump(dtag, dlen, ptr);
|
||||
break;
|
||||
}
|
||||
|
||||
len -= dlen; ptr += dlen; dllen -= dlen;
|
||||
}
|
||||
|
||||
/* Metadata */
|
||||
if ( save2 ) {
|
||||
save |= epg_broadcast_set_is_hd(ebc, hd, mod);
|
||||
save |= epg_broadcast_set_is_widescreen(ebc, ws, mod);
|
||||
save |= epg_broadcast_set_is_audio_desc(ebc, ad, mod);
|
||||
save |= epg_broadcast_set_is_subtitled(ebc, st, mod);
|
||||
save |= epg_broadcast_set_is_deafsigned(ebc, ds, mod);
|
||||
}
|
||||
|
||||
/* Create episode */
|
||||
ee = ebc->episode;
|
||||
if ( !ee || save2 ) {
|
||||
char *uri;
|
||||
uri = epg_hash(title, summary, desc);
|
||||
if (uri) {
|
||||
if ((ee = epg_episode_find_by_uri(uri, 1, &save2)))
|
||||
save |= epg_broadcast_set_episode(ebc, ee, mod);
|
||||
free(uri);
|
||||
}
|
||||
}
|
||||
save |= save2;
|
||||
|
||||
/* Episode data */
|
||||
if (ee) {
|
||||
save |= epg_episode_set_is_bw(ee, bw, mod);
|
||||
if ( *title )
|
||||
save |= epg_episode_set_title(ee, title, mod);
|
||||
if ( *summary )
|
||||
save |= epg_episode_set_summary(ee, summary, mod);
|
||||
if ( *desc )
|
||||
save |= epg_episode_set_description(ee, desc, mod);
|
||||
if ( egl )
|
||||
save |= epg_episode_set_genre(ee, egl, mod);
|
||||
#if TODO_ADD_EXTRA
|
||||
if ( extra )
|
||||
save |= epg_episode_set_extra(ee, extra, mod);
|
||||
#endif
|
||||
}
|
||||
|
||||
/* Tidy up */
|
||||
if (extra) free(extra);
|
||||
if (egl) epg_genre_list_destroy(egl);
|
||||
while (len) {
|
||||
int r;
|
||||
if ((r = _eit_process_event(mod, tableid, svc, ptr, len,
|
||||
&resched, &save)) < 0)
|
||||
break;
|
||||
len -= r;
|
||||
ptr += r;
|
||||
}
|
||||
|
||||
/* Update EPG */
|
||||
|
|
|
|||
Loading…
Add table
Reference in a new issue