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y4menc: add 4:2:2, 4:1:1, and 4:4:4 output support

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Fixes #610902.
This commit is contained in:
Benjamin M. Schwartz 2010-02-23 22:16:39 -05:00 committed by Mark Nauwelaerts
parent 6bf7f5cfd3
commit c3dc498278
2 changed files with 26 additions and 3 deletions
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28
gst/y4m/gsty4mencode.c
View file

@ -70,7 +70,7 @@ static GstStaticPadTemplate y4mencode_sink_factory =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420 }"))
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ IYUV, I420, Y42B, Y41B, Y444 }"))
);
@ -146,6 +146,7 @@ gst_y4m_encode_reset (GstY4mEncode * filter)
filter->width = filter->height = -1;
filter->fps_num = filter->fps_den = 1;
filter->par_num = filter->par_den = 1;
filter->colorspace = "unknown";
}
static gboolean
@ -155,6 +156,7 @@ gst_y4m_encode_setcaps (GstPad * pad, GstCaps * vscaps)
GstStructure *structure;
gboolean res;
gint w, h;
guint32 fourcc;
const GValue *fps, *par, *interlaced;
filter = GST_Y4M_ENCODE (GST_PAD_PARENT (pad));
@ -164,6 +166,26 @@ gst_y4m_encode_setcaps (GstPad * pad, GstCaps * vscaps)
res = gst_structure_get_int (structure, "width", &w);
res &= gst_structure_get_int (structure, "height", &h);
res &= ((fps = gst_structure_get_value (structure, "framerate")) != NULL);
res &= gst_structure_get_fourcc (structure, "format", &fourcc);
switch (fourcc) { /* Translate fourcc to Y4M colorspace code */
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
case GST_MAKE_FOURCC ('I', 'Y', 'U', 'V'):
filter->colorspace = "420";
break;
case GST_MAKE_FOURCC ('Y', '4', '2', 'B'):
filter->colorspace = "422";
break;
case GST_MAKE_FOURCC ('Y', '4', '1', 'B'):
filter->colorspace = "411";
break;
case GST_MAKE_FOURCC ('Y', '4', '4', '4'):
filter->colorspace = "444";
break;
default:
res = FALSE;
break;
}
if (!res || w <= 0 || h <= 0 || !GST_VALUE_HOLDS_FRACTION (fps))
return FALSE;
@ -210,8 +232,8 @@ gst_y4m_encode_get_stream_header (GstY4mEncode * filter)
else if (filter->interlaced)
interlaced = 'b';
header = g_strdup_printf ("YUV4MPEG2 W%d H%d I%c F%d:%d A%d:%d\n",
filter->width, filter->height, interlaced,
header = g_strdup_printf ("YUV4MPEG2 C%s W%d H%d I%c F%d:%d A%d:%d\n",
filter->colorspace, filter->width, filter->height, interlaced,
filter->fps_num, filter->fps_den, filter->par_num, filter->par_den);
buf = gst_buffer_new ();

1
gst/y4m/gsty4mencode.h
View file

@ -53,6 +53,7 @@ struct _GstY4mEncode {
gint par_num, par_den;
gboolean interlaced;
gboolean top_field_first;
const gchar *colorspace;
/* state information */
gboolean header;
};