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sd_lavc: remove small gaps between subtitles

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Just like with text subtitles. Move the magic constants to a common
place too.
This commit is contained in:
wm4 2015-12-05 23:55:56 +01:00
parent 9a240dc82e
commit ff1eaea3e7
3 changed files with 10 additions and 2 deletions
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4
sub/dec_sub.c
View File

@ -356,8 +356,8 @@ static void multiply_timings(struct packet_list *subs, double factor)
// overlapping lines. (It's not worth the trouble.)
static void fix_overlaps_and_gaps(struct packet_list *subs)
{
double threshold = 0.2; // up to 200 ms overlaps or gaps are removed
double keep = threshold * 2;// don't change timings if durations are smaller
double threshold = SUB_GAP_THRESHOLD;
double keep = SUB_GAP_KEEP;
for (int i = 0; i < subs->num_packets - 1; i++) {
struct demux_packet *cur = subs->packets[i];
struct demux_packet *next = subs->packets[i + 1];

5
sub/sd.h
View File

@ -4,6 +4,11 @@
#include "dec_sub.h"
#include "demux/packet.h"
// up to 200 ms overlaps or gaps are removed
#define SUB_GAP_THRESHOLD 0.2
// don't change timings if durations are smaller
#define SUB_GAP_KEEP 0.4
struct sd {
struct mp_log *log;
struct MPOpts *opts;

3
sub/sd_lavc.c
View File

@ -202,6 +202,9 @@ static void decode(struct sd *sd, struct demux_packet *packet)
if (prev->endpts == MP_NOPTS_VALUE || prev->endpts > pts)
prev->endpts = pts;
if (opts->sub_fix_timing && pts - prev->endpts <= SUB_GAP_THRESHOLD)
prev->endpts = pts;
for (int n = 0; n < priv->num_seekpoints; n++) {
if (priv->seekpoints[n].pts == prev->pts) {
priv->seekpoints[n].endpts = prev->endpts;