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sub/sd_ass: utilize UINT32_MAX subtitle duration for unknown

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US closed captions, teletext and ARIB caption decoders utilize this
value.
This commit is contained in:
Jan Ekström
2019-09-18 21:29:25 +03:00
parent 1b9370ff92
commit 2d74b2d832
2 changed files with 13 additions and 10 deletions
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15
sub/sd_ass.c
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@@ -234,17 +234,18 @@ static void decode(struct sd *sd, struct demux_packet *packet)
if (!sd->opts->sub_clear_on_seek && packet->pos >= 0 &&
check_packet_seen(sd, packet->pos))
return;
if (packet->duration < 0) {
if (!ctx->duration_unknown) {
MP_WARN(sd, "Subtitle with unknown duration.\n");
ctx->duration_unknown = true;
}
packet->duration = UNKNOWN_DURATION;
}
double sub_pts = 0;
double sub_duration = 0;
char **r = lavc_conv_decode(ctx->converter, packet, &sub_pts,
&sub_duration);
if (packet->duration < 0 || sub_duration == UINT32_MAX) {
if (!ctx->duration_unknown) {
MP_WARN(sd, "Subtitle with unknown duration.\n");
ctx->duration_unknown = true;
}
sub_duration = UNKNOWN_DURATION;
}
for (int n = 0; r && r[n]; n++) {
char *ass_line = r[n];