mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2024-11-27 04:01:08 +00:00
Code Issues 1 Projects Releases Wiki Activity

interlace: Use buffer flags and caps correctly

Browse source 
This requires a recent commit to -base that adds an INTERLACED buffer
flag.
This commit is contained in:
Robert Swain 2012-07-20 23:28:49 +02:00
parent 9e28b769e8
commit 305db3ef56
1 changed files with 18 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
gst/interlace/gstinterlace.c
View file

@ -157,7 +157,7 @@ GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE
("{AYUV,YUY2,UYVY,I420,YV12,Y42B,Y444,NV12,NV21}")
",interlace-mode=mixed")
",interlace-mode={interleaved,mixed}")
);
static GstStaticPadTemplate gst_interlace_sink_template =
@ -304,7 +304,7 @@ static const PulldownFormat formats[] = {
static void
gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf,
int n_fields)
int n_fields, gboolean interlaced)
{
/* field duration = src_fps_d / (2 * src_fps_n) */
if (interlace->src_fps_n == 0) {
@ -330,6 +330,10 @@ gst_interlace_decorate_buffer (GstInterlace * interlace, GstBuffer * buf,
if (n_fields == 1) {
GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_ONEFIELD);
}
if (interlace->pattern > GST_INTERLACE_PATTERN_2_2 && n_fields == 2
&& interlaced) {
GST_BUFFER_FLAG_SET (buf, GST_VIDEO_BUFFER_FLAG_INTERLACED);
}
}
static gboolean
@ -351,8 +355,13 @@ 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;
if (interlace->pattern > GST_INTERLACE_PATTERN_2_2) {
gst_caps_set_simple (othercaps, "interlace-mode", G_TYPE_STRING, "mixed",
NULL);
} else {
gst_caps_set_simple (othercaps, "interlace-mode", G_TYPE_STRING,
"interleaved", NULL);
}
gst_caps_set_simple (othercaps, "framerate", GST_TYPE_FRACTION,
interlace->src_fps_n, interlace->src_fps_d, NULL);
@ -410,7 +419,7 @@ gst_interlace_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
num_fields -= 2;
gst_interlace_decorate_buffer (interlace, interlace->stored_frame,
n_fields);
n_fields, FALSE);
/* ref output_buffer/stored frame because we want to keep it for now
* and pushing gives away a ref */
@ -669,6 +678,7 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
while (num_fields >= 2) {
GstBuffer *output_buffer;
int n_output_fields;
gboolean interlaced = FALSE;
GST_DEBUG ("have %d fields, %d current, %d stored",
num_fields, current_fields, interlace->stored_fields);
@ -685,6 +695,7 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
copy_field (interlace, output_buffer, buffer, interlace->field_index ^ 1);
current_fields--;
n_output_fields = 2;
interlaced = TRUE;
} else {
output_buffer = gst_buffer_make_writable (gst_buffer_ref (buffer));
if (num_fields >= 3 && interlace->allow_rff) {
@ -701,7 +712,8 @@ gst_interlace_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
}
num_fields -= n_output_fields;
gst_interlace_decorate_buffer (interlace, output_buffer, n_output_fields);
gst_interlace_decorate_buffer (interlace, output_buffer, n_output_fields,
interlaced);
interlace->fields_since_timebase += n_output_fields;
interlace->field_index ^= (n_output_fields & 1);