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avformat/movenc: correct loci parameter handling

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3GPP TS 26.244 Table 8.10 specifies that longitude is written before
latitude. The MOV demuxer already expects the correct order. So, write
them in that order.

However, the user supplied string may also be used in MOV mode which
requires ISO 6709 format which specifies latitude first. The demuxer
also exports the loci value in that format. So parser adjusted as well.
This commit is contained in:
Gyan Doshi 2023-03-26 12:40:09 +05:30
parent c6dedaf491
commit 6941788d24
1 changed files with 3 additions and 3 deletions
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6
libavformat/movenc.c
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@ -4021,13 +4021,13 @@ static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
return 0;
ptr = t->value;
longitude = strtod(ptr, &end);
latitude = strtod(ptr, &end);
if (end == ptr) {
av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
return 0;
}
ptr = end;
latitude = strtod(ptr, &end);
longitude = strtod(ptr, &end);
if (end == ptr) {
av_log(s, AV_LOG_WARNING, "malformed location metadata\n");
return 0;
@ -4048,8 +4048,8 @@ static int mov_write_loci_tag(AVFormatContext *s, AVIOContext *pb)
avio_wb16(pb, lang);
avio_write(pb, place, strlen(place) + 1);
avio_w8(pb, 0); /* role of place (0 == shooting location, 1 == real location, 2 == fictional location) */
avio_wb32(pb, latitude_fix);
avio_wb32(pb, longitude_fix);
avio_wb32(pb, latitude_fix);
avio_wb32(pb, altitude_fix);
avio_write(pb, astronomical_body, strlen(astronomical_body) + 1);
avio_w8(pb, 0); /* additional notes, null terminated string */