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demux_mkv: simplify handle_block() logic a bit

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wm4 2013-04-13 21:19:25 +02:00
parent 59eaa8ed7e
commit 8133aa4d8a
1 changed files with 8 additions and 11 deletions
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19
demux/demux_mkv.c
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@ -2134,8 +2134,7 @@ static int handle_block(demuxer_t *demuxer, struct block_info *block_info)
{
mkv_demuxer_t *mkv_d = (mkv_demuxer_t *) demuxer->priv;
demux_stream_t *ds = NULL;
int laces;
int i, use_this_block = 1;
int i, laces;
double current_pts;
bstr data = block_info->data;
bool keyframe = block_info->keyframe;
@ -2143,6 +2142,7 @@ static int handle_block(demuxer_t *demuxer, struct block_info *block_info)
uint64_t tc = block_info->timecode;
mkv_track_t *track = block_info->track;
uint32_t lace_size[MAX_NUM_LACES];
bool use_this_block = tc >= mkv_d->skip_to_timecode;
if (demux_mkv_read_block_lacing(&data, &laces, lace_size))
return 0;
@ -2153,6 +2153,7 @@ static int handle_block(demuxer_t *demuxer, struct block_info *block_info)
&& track->id == demuxer->audio->id) {
ds = demuxer->audio;
use_this_block = 1;
if (mkv_d->a_skip_to_keyframe)
use_this_block = keyframe;
if (mkv_d->v_skip_to_keyframe)
@ -2173,8 +2174,7 @@ static int handle_block(demuxer_t *demuxer, struct block_info *block_info)
}
} else if (track->type == MATROSKA_TRACK_SUBTITLE
&& track->id == demuxer->sub->id) {
if (tc < mkv_d->skip_to_timecode && !mkv_d->subtitle_preroll)
use_this_block = 0;
use_this_block |= mkv_d->subtitle_preroll;
if (use_this_block) {
ds = demuxer->sub;
if (laces > 1) {
@ -2183,17 +2183,14 @@ static int handle_block(demuxer_t *demuxer, struct block_info *block_info)
use_this_block = 0;
}
}
} else if (tc < mkv_d->skip_to_timecode)
use_this_block = 0;
else if (track->type == MATROSKA_TRACK_VIDEO
} else if (track->type == MATROSKA_TRACK_VIDEO
&& track->id == demuxer->video->id) {
ds = demuxer->video;
if (mkv_d->v_skip_to_keyframe)
use_this_block = keyframe;
} else
use_this_block = 0;
use_this_block &= keyframe;
}
if (use_this_block) {
if (ds && use_this_block) {
mkv_d->last_pts = current_pts;
mkv_d->last_filepos = demuxer->filepos;