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Parse offset sequence id from STN_table_SS

This commit is contained in:
Hendrik Leppkes 2016-02-22 12:30:20 +01:00
parent 7a2f544c03
commit c2ef29d202
2 changed files with 96 additions and 1 deletions
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1
src/libbluray/bdnav/mpls_data.h
View File

@ -47,6 +47,7 @@ typedef struct
uint8_t sv_num_pip_pg_ref;
uint8_t *sv_secondary_audio_ref;
uint8_t *sv_pip_pg_ref;
uint8_t ss_offset_sequence_id;
} MPLS_STREAM;
typedef struct

96
src/libbluray/bdnav/mpls_parse.c
View File

@ -196,6 +196,7 @@ _parse_stream(BITSTREAM *bits, MPLS_STREAM *s)
break;
};
s->lang[3] = '\0';
s->ss_offset_sequence_id = 0xFF;
if (bs_seek_byte(bits, pos + len) < 0) {
return 0;
@ -1049,6 +1050,99 @@ _parse_static_metadata_extension(BITSTREAM *bits, MPLS_PL *pl)
return 0;
}
static int
_parse_stn_ss_extension(BITSTREAM *bits, MPLS_PL *pl)
{
int ii, s;
int64_t pos;
for (ii = 0; ii < pl->list_count; ii++) {
uint32_t len = bs_read(bits, 16);
pos = bs_pos(bits) >> 3;
int Fixed_offset_during_PopUp_flag = bs_read(bits, 1);
bs_skip(bits, 15); // reserved
for (s = 0; s < pl->play_item[ii].stn.num_video; s++) {
// stream_entry
uint32_t slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
// stream_attributes_ss
slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
bs_skip(bits, 10); // reserved
bs_skip(bits, 6); // number_of_offset_sequences
}
for (s = 0; s < pl->play_item[ii].stn.num_pg; s++) {
pl->play_item[ii].stn.pg[s].ss_offset_sequence_id = bs_read(bits, 8);
bs_skip(bits, 4); // reserved
bs_skip(bits, 1); // dialog_region_offset_valid_flag
int is_SS_PG = bs_read(bits, 1);
int is_top_AS_PG_textST = bs_read(bits, 1);
int is_bottom_AS_PG_textST = bs_read(bits, 1);
if (is_SS_PG) {
// stream_entry left eye
uint32_t slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
// stream_entry right eye
slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
bs_skip(bits, 8); // reserved
bs_skip(bits, 8); // PG offset
}
if (is_top_AS_PG_textST) {
// stream_entry
uint32_t slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
bs_skip(bits, 8); // reserved
bs_skip(bits, 8); // PG offset
}
if (is_bottom_AS_PG_textST) {
// stream_entry
uint32_t slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
bs_skip(bits, 8); // reserved
bs_skip(bits, 8); // PG offset
}
}
for (s = 0; s < pl->play_item[ii].stn.num_ig; s++) {
if (Fixed_offset_during_PopUp_flag)
bs_skip(bits, 8);
else
pl->play_item[ii].stn.ig[s].ss_offset_sequence_id = bs_read(bits, 8);
bs_skip(bits, 16); // IG_Plane_offset_during_BB_video
bs_skip(bits, 7); // reserved
int is_SS_IG = bs_read(bits, 1);
if (is_SS_IG) {
// stream_entry left eye
uint32_t slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
// stream_entry right eye
slen = bs_read(bits, 8);
bs_skip(bits, slen * 8);
bs_skip(bits, 8); // reserved
bs_skip(bits, 8); // PG offset
}
}
// Skip to next play item
bs_seek_byte(bits, pos + len);
}
return 0;
}
static int
_parse_mpls_extension(BITSTREAM *bits, int id1, int id2, void *handle)
{
@ -1063,7 +1157,7 @@ _parse_mpls_extension(BITSTREAM *bits, int id1, int id2, void *handle)
if (id1 == 2) {
if (id2 == 1) {
return 0;
return _parse_stn_ss_extension(bits, pl);
}
if (id2 == 2) {
// SubPath entries extension