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zbar: handle more formats that start with an 8-bit Y plane

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We can handle most planar YUV layouts too, as long as we don't
tell zbar about the chroma planes.
This commit is contained in:
Tim-Philipp Müller 2010-11-02 17:46:11 +00:00
parent 7ddd7f7809
commit 2363d97da1
1 changed files with 8 additions and 2 deletions
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10
ext/zbar/gstzbar.c
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@ -108,18 +108,22 @@ enum
#define DEFAULT_CACHE FALSE
#define DEFAULT_MESSAGE TRUE
/* FIXME: add YVU9 and YUV9 once we have a GstVideoFormat for that */
#define ZBAR_YUV_CAPS \
"{ Y800, I420, YV12, NV12, NV21, Y41B, Y42B }"
static GstStaticPadTemplate gst_zbar_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ Y800 }"))
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV (ZBAR_YUV_CAPS))
);
static GstStaticPadTemplate gst_zbar_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("{ Y800 }"))
GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV (ZBAR_YUV_CAPS))
);
static void gst_zbar_finalize (GObject * object);
@ -293,6 +297,8 @@ gst_zbar_transform_ip (GstBaseTransform * base, GstBuffer * outbuf)
image = zbar_image_create ();
/* all formats we support start with an 8-bit Y plane. zbar doesn't need
* to know about the chroma plane(s) */
zbar_image_set_format (image, GST_MAKE_FOURCC ('Y', '8', '0', '0'));
rowstride = gst_video_format_get_row_stride (zbar->format, 0, zbar->width);
zbar_image_set_size (image, rowstride, zbar->height);