mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-12-23 16:50:47 +00:00
Code Issues 1 Projects Releases Wiki Activity

interlace: Don't fail negotiation if capsfilters decide framerate

Browse source 
Try to negotiate if the framerates on either sides of the interlace are
decided using capsfilters and the framerates are correct. Otherwise the
following pipelines would fail to negotiate:

gst-launch-1.0 videotestsrc !
video/x-raw,framerate=24/1,interlace-mode=progressive ! interlace
field-pattern=2 ! video/x-raw,framerate =30/1 ! fakesink

gst-launch-1.0 videotestsrc !
video/x-raw,framerate=60/1,interlace-mode=progressive ! interlace
field-pattern=0 ! video/x-raw,framerate=30/1 ! fakesink

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1349>
This commit is contained in:
Vivia Nikolaidou 2020-06-18 22:56:57 +03:00
parent 581d76b41a
commit 7c7ac7a0dc
1 changed files with 31 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
gst/interlace/gstinterlace.c
View file

@ -213,6 +213,9 @@ static gboolean gst_interlace_src_query (GstPad * pad, GstObject * parent,
static GstStateChangeReturn gst_interlace_change_state (GstElement * element,
GstStateChange transition);
static GstCaps *gst_interlace_caps_double_framerate (GstCaps * caps,
gboolean half, gboolean skip_progressive);
#define gst_interlace_parent_class parent_class
G_DEFINE_TYPE (GstInterlace, gst_interlace, GST_TYPE_ELEMENT);
@ -434,6 +437,20 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
s = gst_caps_get_structure (othercaps, i);
gst_structure_remove_field (s, "field-order");
}
} else if (interlace->pattern == GST_INTERLACE_PATTERN_1_1 &&
GST_VIDEO_INFO_INTERLACE_MODE (&info) ==
GST_VIDEO_INTERLACE_MODE_PROGRESSIVE) {
/* interlaced will do passthrough, mixed will fail later in the
* negotiation */
othercaps = gst_interlace_caps_double_framerate (othercaps, TRUE, FALSE);
} else if (interlace->pattern > GST_INTERLACE_PATTERN_2_2) {
GST_FIXME_OBJECT (interlace,
"Add calculations for telecine framerate conversions");
for (i = 0; i < gst_caps_get_size (othercaps); ++i) {
GstStructure *s = gst_caps_get_structure (othercaps, i);
gst_structure_remove_field (s, "framerate");
}
}
src_peer_caps = gst_pad_peer_query_caps (interlace->srcpad, othercaps);
gst_caps_unref (othercaps);
@ -457,6 +474,8 @@ gst_interlace_setcaps (GstInterlace * interlace, GstCaps * caps)
interlace->src_fps_n = info.fps_n * pdformat->ratio_n;
interlace->src_fps_d = info.fps_d * pdformat->ratio_d;
GST_DEBUG_OBJECT (interlace, "new framerate %d/%d", interlace->src_fps_n,
interlace->src_fps_d);
if (alternate) {
GST_DEBUG_OBJECT (interlace,
@ -666,18 +685,26 @@ gst_interlace_fraction_double (gint * n_out, gint * d_out, gboolean half)
}
static GstCaps *
gst_interlace_caps_double_framerate (GstCaps * caps, gboolean half)
gst_interlace_caps_double_framerate (GstCaps * caps, gboolean half,
gboolean skip_progressive)
{
guint len;
for (len = gst_caps_get_size (caps); len > 0; len--) {
GstStructure *s = gst_caps_get_structure (caps, len - 1);
const GValue *val;
const gchar *interlace_mode;
val = gst_structure_get_value (s, "framerate");
if (!val)
continue;
interlace_mode = gst_structure_get_string (s, "interlace-mode");
/* Do not double the framerate for interlaced - we will either passthrough
* or fail to negotiate */
if (skip_progressive && (g_strcmp0 (interlace_mode, "progressive") != 0))
continue;
if (G_VALUE_TYPE (val) == GST_TYPE_FRACTION) {
gint n, d;
@ -789,7 +816,7 @@ gst_interlace_getcaps (GstPad * pad, GstInterlace * interlace, GstCaps * filter)
if (interlace->pattern == GST_INTERLACE_PATTERN_1_1) {
clean_filter =
gst_interlace_caps_double_framerate (clean_filter,
(pad == interlace->sinkpad));
(pad == interlace->sinkpad), TRUE);
} else if (interlace->pattern != GST_INTERLACE_PATTERN_2_2) {
GST_FIXME_OBJECT (interlace,
"Add calculations for telecine framerate conversions");
@ -887,7 +914,8 @@ gst_interlace_getcaps (GstPad * pad, GstInterlace * interlace, GstCaps * filter)
if (interlace->pattern == GST_INTERLACE_PATTERN_1_1) {
icaps =
gst_interlace_caps_double_framerate (icaps, (pad == interlace->srcpad));
gst_interlace_caps_double_framerate (icaps, (pad == interlace->srcpad),
FALSE);
} else if (interlace->pattern != GST_INTERLACE_PATTERN_2_2) {
GST_FIXME_OBJECT (interlace,
"Add calculations for telecine framerate conversions");