mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-20 00:31:13 +00:00
Code Issues 1 Projects Releases Wiki Activity

video-converter: keep a small backlog of lines

Browse source 
Allow lines to jump backwards slightly, usefull for interlaced content.
This commit is contained in:
Wim Taymans 2014-11-19 09:30:14 +01:00
parent b911434716
commit ac756ba0d9
1 changed files with 9 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

14
gst-libs/gst/video/video-converter.c
View file

@ -299,15 +299,20 @@ gst_line_cache_set_alloc_line_func (GstLineCache * cache,
cache->alloc_line_notify = notify; cache->alloc_line_notify = notify;
} }
/* keep this much backlog */
#define BACKLOG 2
static gpointer * static gpointer *
gst_line_cache_get_lines (GstLineCache * cache, gint out_line, gint in_line, gst_line_cache_get_lines (GstLineCache * cache, gint out_line, gint in_line,
gint n_lines) gint n_lines)
{ {
if (cache->first < in_line) { if (cache->first + BACKLOG < in_line) {
gint to_remove = MIN (in_line - cache->first, cache->lines->len); gint to_remove =
if (to_remove > 0) MIN (in_line - (cache->first + BACKLOG), cache->lines->len);
if (to_remove > 0) {
g_ptr_array_remove_range (cache->lines, 0, to_remove); g_ptr_array_remove_range (cache->lines, 0, to_remove);
cache->first = in_line; cache->first += to_remove;
}
} else if (in_line < cache->first) { } else if (in_line < cache->first) {
gst_line_cache_clear (cache); gst_line_cache_clear (cache);
cache->first = in_line; cache->first = in_line;
@ -2181,7 +2186,6 @@ video_converter_generic (GstVideoConverter * convert, const GstVideoFrame * src,
l2 = l1 + 1; \ l2 = l1 + 1; \
} }
static void static void
convert_I420_YUY2 (GstVideoConverter * convert, const GstVideoFrame * src, convert_I420_YUY2 (GstVideoConverter * convert, const GstVideoFrame * src,
GstVideoFrame * dest) GstVideoFrame * dest)