typedef struct MpegTSSectionFilter {
int section_index;
int section_h_size;
+ int last_ver;
uint8_t *section_buf;
unsigned int check_crc : 1;
unsigned int end_of_section_reached : 1;
sec->opaque = opaque;
sec->section_buf = av_malloc(MAX_SECTION_SIZE);
sec->check_crc = check_crc;
+ sec->last_ver = -1;
+
if (!sec->section_buf) {
av_free(filter);
return NULL;
int section_len)
{
MpegTSContext *ts = filter->u.section_filter.opaque;
+ MpegTSSectionFilter *tssf = &filter->u.section_filter;
SectionHeader h;
const uint8_t *p, *p_end;
AVIOContext pb;
return;
if (h.tid != M4OD_TID)
return;
+ if (h.version == tssf->last_ver)
+ return;
+ tssf->last_ver = h.version;
mp4_read_od(s, p, (unsigned) (p_end - p), mp4_descr, &mp4_descr_count,
MAX_MP4_DESCR_COUNT);
static void pmt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
MpegTSContext *ts = filter->u.section_filter.opaque;
+ MpegTSSectionFilter *tssf = &filter->u.section_filter;
SectionHeader h1, *h = &h1;
PESContext *pes;
AVStream *st;
p = section;
if (parse_section_header(h, &p, p_end) < 0)
return;
+ if (h->version == tssf->last_ver)
+ return;
+ tssf->last_ver = h->version;
av_dlog(ts->stream, "sid=0x%x sec_num=%d/%d\n",
h->id, h->sec_num, h->last_sec_num);
static void pat_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
MpegTSContext *ts = filter->u.section_filter.opaque;
+ MpegTSSectionFilter *tssf = &filter->u.section_filter;
SectionHeader h1, *h = &h1;
const uint8_t *p, *p_end;
int sid, pmt_pid;
return;
if (h->tid != PAT_TID)
return;
+ if (h->version == tssf->last_ver)
+ return;
+ tssf->last_ver = h->version;
clear_programs(ts);
for (;;) {
static void sdt_cb(MpegTSFilter *filter, const uint8_t *section, int section_len)
{
MpegTSContext *ts = filter->u.section_filter.opaque;
+ MpegTSSectionFilter *tssf = &filter->u.section_filter;
SectionHeader h1, *h = &h1;
const uint8_t *p, *p_end, *desc_list_end, *desc_end;
int onid, val, sid, desc_list_len, desc_tag, desc_len, service_type;
return;
if (h->tid != SDT_TID)
return;
+ if (h->version == tssf->last_ver)
+ return;
+ tssf->last_ver = h->version;
+
onid = get16(&p, p_end);
if (onid < 0)
return;