mirrors/gstreamer
mirrors/gstreamer
1
1
Fork 0
mirror of https://gitlab.freedesktop.org/gstreamer/gstreamer.git synced 2025-02-17 03:35:21 +00:00
Code Issues 1 Projects Releases Wiki Activity

videocrop: Port to 0.11

Browse source
This commit is contained in:
Thiago Santos 2011-10-13 00:39:28 -03:00
parent 2490d39a90
commit 04080866aa
3 changed files with 148 additions and 159 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
gst/videocrop/Makefile.am
View file

@ -6,7 +6,7 @@ plugin_LTLIBRARIES = libgstvideocrop.la
libgstvideocrop_la_SOURCES = gstvideocrop.c gstaspectratiocrop.c
libgstvideocrop_la_CFLAGS = $(GST_CFLAGS) $(GST_BASE_CFLAGS) \
$(GST_PLUGINS_BASE_CFLAGS)
libgstvideocrop_la_LIBADD = $(GST_BASE_LIBS)
libgstvideocrop_la_LIBADD = $(GST_BASE_LIBS) -lgstvideo-$(GST_MAJORMINOR)
libgstvideocrop_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
libgstvideocrop_la_LIBTOOLFLAGS = --tag=disable-static

294
gst/videocrop/gstvideocrop.c
View file

@ -77,34 +77,10 @@ enum
ARG_BOTTOM
};
/* the formats we support */
#define GST_VIDEO_CAPS_GRAY "video/x-raw-gray, " \
"bpp = (int) 8, " \
"width = " GST_VIDEO_SIZE_RANGE ", " \
"height = " GST_VIDEO_SIZE_RANGE ", " \
"framerate = " GST_VIDEO_FPS_RANGE
#define VIDEO_CROP_CAPS \
GST_VIDEO_CAPS_RGBx ";" \
GST_VIDEO_CAPS_xRGB ";" \
GST_VIDEO_CAPS_BGRx ";" \
GST_VIDEO_CAPS_xBGR ";" \
GST_VIDEO_CAPS_RGBA ";" \
GST_VIDEO_CAPS_ARGB ";" \
GST_VIDEO_CAPS_BGRA ";" \
GST_VIDEO_CAPS_ABGR ";" \
GST_VIDEO_CAPS_RGB ";" \
GST_VIDEO_CAPS_BGR ";" \
GST_VIDEO_CAPS_YUV ("AYUV") ";" \
GST_VIDEO_CAPS_YUV ("YUY2") ";" \
GST_VIDEO_CAPS_YUV ("YVYU") ";" \
GST_VIDEO_CAPS_YUV ("UYVY") ";" \
GST_VIDEO_CAPS_YUV ("Y800") ";" \
GST_VIDEO_CAPS_YUV ("I420") ";" \
GST_VIDEO_CAPS_YUV ("YV12") ";" \
GST_VIDEO_CAPS_RGB_16 ";" \
GST_VIDEO_CAPS_RGB_15 ";" \
GST_VIDEO_CAPS_GRAY
#define VIDEO_CROP_CAPS \
GST_VIDEO_CAPS_MAKE ("{ RGBx, xRGB, BGRx, xBGR, " \
"RGBA, ARGB, BGRA, ABGR, RGB, BGR, AYUV, YUY2, " \
"YVYU, UYVY, Y800, I420, RGB16, RGB15, GRAY8 }")
static GstStaticPadTemplate src_template = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
@ -118,8 +94,8 @@ static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink",
GST_STATIC_CAPS (VIDEO_CROP_CAPS)
);
GST_BOILERPLATE (GstVideoCrop, gst_video_crop, GstBaseTransform,
GST_TYPE_BASE_TRANSFORM);
#define gst_video_crop_parent_class parent_class
G_DEFINE_TYPE (GstVideoCrop, gst_video_crop, GST_TYPE_BASE_TRANSFORM);
static void gst_video_crop_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec);
@ -127,7 +103,7 @@ static void gst_video_crop_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
static GstCaps *gst_video_crop_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps);
GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps);
static GstFlowReturn gst_video_crop_transform (GstBaseTransform * trans,
GstBuffer * inbuf, GstBuffer * outbuf);
static gboolean gst_video_crop_get_unit_size (GstBaseTransform * trans,
@ -137,22 +113,6 @@ static gboolean gst_video_crop_set_caps (GstBaseTransform * trans,
static gboolean gst_video_crop_src_event (GstBaseTransform * trans,
GstEvent * event);
static void
gst_video_crop_base_init (gpointer g_class)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
gst_element_class_set_details_simple (element_class, "Crop",
"Filter/Effect/Video",
"Crops video into a user-defined region",
"Tim-Philipp Müller <tim centricular net>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
}
static gboolean
gst_video_crop_src_event (GstBaseTransform * trans, GstEvent * event)
{
@ -203,11 +163,32 @@ static void
gst_video_crop_class_init (GstVideoCropClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *element_class;
GstBaseTransformClass *basetransform_class;
gobject_class = (GObjectClass *) klass;
element_class = (GstElementClass *) klass;
basetransform_class = (GstBaseTransformClass *) klass;
gst_element_class_set_details_simple (element_class, "Crop",
"Filter/Effect/Video",
"Crops video into a user-defined region",
"Tim-Philipp Müller <tim centricular net>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gst_element_class_set_details_simple (element_class, "Crop",
"Filter/Effect/Video",
"Crops video into a user-defined region",
"Tim-Philipp Müller <tim centricular net>");
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&src_template));
gobject_class->set_property = gst_video_crop_set_property;
gobject_class->get_property = gst_video_crop_get_property;
@ -236,7 +217,7 @@ gst_video_crop_class_init (GstVideoCropClass * klass)
}
static void
gst_video_crop_init (GstVideoCrop * vcrop, GstVideoCropClass * klass)
gst_video_crop_init (GstVideoCrop * vcrop)
{
vcrop->crop_right = 0;
vcrop->crop_left = 0;
@ -248,50 +229,28 @@ static gboolean
gst_video_crop_get_image_details_from_caps (GstVideoCrop * vcrop,
GstVideoCropImageDetails * details, GstCaps * caps)
{
GstStructure *structure;
gint width, height;
structure = gst_caps_get_structure (caps, 0);
if (!gst_structure_get_int (structure, "width", &width) ||
!gst_structure_get_int (structure, "height", &height)) {
gst_video_info_init (&details->info);
if (!gst_video_info_from_caps (&details->info, caps)) {
goto incomplete_format;
}
details->width = width;
details->height = height;
if (gst_structure_has_name (structure, "video/x-raw-rgb") ||
gst_structure_has_name (structure, "video/x-raw-gray")) {
gint bpp = 0;
if (!gst_structure_get_int (structure, "bpp", &bpp) || (bpp & 0x07) != 0)
goto incomplete_format;
if (details->info.width == 0 && details->info.height == 0) {
goto incomplete_format;
}
if (GST_VIDEO_INFO_IS_RGB (&details->info)
|| GST_VIDEO_INFO_IS_GRAY (&details->info)) {
details->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE;
details->bytes_per_pixel = bpp / 8;
details->stride = GST_ROUND_UP_4 (width * details->bytes_per_pixel);
details->size = details->stride * height;
} else if (gst_structure_has_name (structure, "video/x-raw-yuv")) {
guint32 format = 0;
if (!gst_structure_get_fourcc (structure, "format", &format))
goto incomplete_format;
switch (format) {
case GST_MAKE_FOURCC ('A', 'Y', 'U', 'V'):
} else {
switch (GST_VIDEO_INFO_FORMAT (&details->info)) {
case GST_VIDEO_FORMAT_AYUV:
details->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE;
details->bytes_per_pixel = 4;
details->stride = GST_ROUND_UP_4 (width * 4);
details->size = details->stride * height;
break;
case GST_MAKE_FOURCC ('Y', 'V', 'Y', 'U'):
case GST_MAKE_FOURCC ('Y', 'U', 'Y', '2'):
case GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y'):
case GST_VIDEO_FORMAT_YVYU:
case GST_VIDEO_FORMAT_YUY2:
case GST_VIDEO_FORMAT_UYVY:
details->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_COMPLEX;
details->bytes_per_pixel = 2;
details->stride = GST_ROUND_UP_4 (width * 2);
details->size = details->stride * height;
if (format == GST_MAKE_FOURCC ('U', 'Y', 'V', 'Y')) {
if (GST_VIDEO_INFO_FORMAT (&details->info) == GST_VIDEO_FORMAT_UYVY) {
/* UYVY = 4:2:2 - [U0 Y0 V0 Y1] [U2 Y2 V2 Y3] [U4 Y4 V4 Y5] */
details->macro_y_off = 1;
} else {
@ -299,34 +258,16 @@ gst_video_crop_get_image_details_from_caps (GstVideoCrop * vcrop,
details->macro_y_off = 0;
}
break;
case GST_MAKE_FOURCC ('Y', '8', '0', '0'):
case GST_VIDEO_FORMAT_Y800:
details->packing = VIDEO_CROP_PIXEL_FORMAT_PACKED_SIMPLE;
details->bytes_per_pixel = 1;
details->stride = GST_ROUND_UP_4 (width);
details->size = details->stride * height;
break;
case GST_MAKE_FOURCC ('I', '4', '2', '0'):
case GST_MAKE_FOURCC ('Y', 'V', '1', '2'):{
case GST_VIDEO_FORMAT_I420:
case GST_VIDEO_FORMAT_YV12:
details->packing = VIDEO_CROP_PIXEL_FORMAT_PLANAR;
details->y_stride = GST_ROUND_UP_4 (width);
details->u_stride = GST_ROUND_UP_8 (width) / 2;
details->v_stride = GST_ROUND_UP_8 (width) / 2;
/* I420 and YV12 have U/V planes swapped, but doesn't matter for us */
details->y_off = 0;
details->u_off = 0 + details->y_stride * GST_ROUND_UP_2 (height);
details->v_off = details->u_off +
details->u_stride * (GST_ROUND_UP_2 (height) / 2);
details->size = details->v_off +
details->v_stride * (GST_ROUND_UP_2 (height) / 2);
break;
}
default:
goto unknown_format;
}
} else {
goto unknown_format;
}
return TRUE;
@ -357,7 +298,7 @@ gst_video_crop_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
if (!gst_video_crop_get_image_details_from_caps (vcrop, &img_details, caps))
return FALSE;
*size = img_details.size;
*size = GST_VIDEO_INFO_SIZE (&img_details.info);
return TRUE;
}
@ -368,42 +309,57 @@ gst_video_crop_transform_packed_complex (GstVideoCrop * vcrop,
GstBuffer * inbuf, GstBuffer * outbuf)
{
guint8 *in_data, *out_data;
gpointer in_bufdata, out_bufdata;
gsize insize, outsize;
guint i, dx;
gint in_stride;
gint out_stride;
in_data = GST_BUFFER_DATA (inbuf);
out_data = GST_BUFFER_DATA (outbuf);
in_bufdata = gst_buffer_map (inbuf, &insize, NULL, GST_MAP_READ);
out_bufdata = gst_buffer_map (outbuf, &outsize, NULL, GST_MAP_WRITE);
in_data += vcrop->crop_top * vcrop->in.stride;
in_data = in_bufdata;
out_data = out_bufdata;
in_stride = GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 0);
out_stride = GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->out.info, 0);
in_data += vcrop->crop_top * in_stride;
/* rounding down here so we end up at the start of a macro-pixel and not
* in the middle of one */
in_data += ROUND_DOWN_2 (vcrop->crop_left) * vcrop->in.bytes_per_pixel;
in_data +=
ROUND_DOWN_2 (vcrop->crop_left) *
GST_VIDEO_INFO_COMP_PSTRIDE (&vcrop->in.info, 0);
dx = vcrop->out.width * vcrop->out.bytes_per_pixel;
dx = GST_VIDEO_INFO_WIDTH (&vcrop->out.info) *
GST_VIDEO_INFO_COMP_PSTRIDE (&vcrop->out.info, 0);
/* UYVY = 4:2:2 - [U0 Y0 V0 Y1] [U2 Y2 V2 Y3] [U4 Y4 V4 Y5]
* YUYV = 4:2:2 - [Y0 U0 Y1 V0] [Y2 U2 Y3 V2] [Y4 U4 Y5 V4] = YUY2 */
if ((vcrop->crop_left % 2) != 0) {
for (i = 0; i < vcrop->out.height; ++i) {
for (i = 0; i < GST_VIDEO_INFO_HEIGHT (&vcrop->out.info); ++i) {
gint j;
memcpy (out_data, in_data, dx);
/* move just the Y samples one pixel to the left, don't worry about
* chroma shift */
for (j = vcrop->in.macro_y_off; j < vcrop->out.stride - 2; j += 2)
for (j = vcrop->in.macro_y_off; j < out_stride - 2; j += 2)
out_data[j] = in_data[j + 2];
in_data += vcrop->in.stride;
out_data += vcrop->out.stride;
in_data += in_stride;
out_data += out_stride;
}
} else {
for (i = 0; i < vcrop->out.height; ++i) {
for (i = 0; i < GST_VIDEO_INFO_HEIGHT (&vcrop->out.info); ++i) {
memcpy (out_data, in_data, dx);
in_data += vcrop->in.stride;
out_data += vcrop->out.stride;
in_data += in_stride;
out_data += out_stride;
}
}
gst_buffer_unmap (inbuf, in_bufdata, insize);
gst_buffer_unmap (outbuf, out_bufdata, outsize);
}
static void
@ -411,21 +367,34 @@ gst_video_crop_transform_packed_simple (GstVideoCrop * vcrop,
GstBuffer * inbuf, GstBuffer * outbuf)
{
guint8 *in_data, *out_data;
gpointer in_bufdata, out_bufdata;
gsize insize, outsize;
guint i, dx;
gint in_stride, out_stride;
in_data = GST_BUFFER_DATA (inbuf);
out_data = GST_BUFFER_DATA (outbuf);
in_bufdata = gst_buffer_map (inbuf, &insize, NULL, GST_MAP_READ);
out_bufdata = gst_buffer_map (outbuf, &outsize, NULL, GST_MAP_WRITE);
in_data += vcrop->crop_top * vcrop->in.stride;
in_data += vcrop->crop_left * vcrop->in.bytes_per_pixel;
in_data = in_bufdata;
out_data = out_bufdata;
dx = vcrop->out.width * vcrop->out.bytes_per_pixel;
in_stride = GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 0);
out_stride = GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->out.info, 0);
for (i = 0; i < vcrop->out.height; ++i) {
in_data += vcrop->crop_top * in_stride;
in_data +=
vcrop->crop_left * GST_VIDEO_INFO_COMP_PSTRIDE (&vcrop->in.info, 0);
dx = GST_VIDEO_INFO_WIDTH (&vcrop->out.info) *
GST_VIDEO_INFO_COMP_PSTRIDE (&vcrop->out.info, 0);
for (i = 0; i < GST_VIDEO_INFO_HEIGHT (&vcrop->out.info); ++i) {
memcpy (out_data, in_data, dx);
in_data += vcrop->in.stride;
out_data += vcrop->out.stride;
in_data += in_stride;
out_data += out_stride;
}
gst_buffer_unmap (inbuf, in_bufdata, insize);
gst_buffer_unmap (outbuf, out_bufdata, outsize);
}
static void
@ -435,43 +404,62 @@ gst_video_crop_transform_planar (GstVideoCrop * vcrop, GstBuffer * inbuf,
guint8 *y_out, *u_out, *v_out;
guint8 *y_in, *u_in, *v_in;
guint i, dx;
gpointer in_bufdata, out_bufdata;
gsize insize, outsize;
in_bufdata = gst_buffer_map (inbuf, &insize, NULL, GST_MAP_READ);
out_bufdata = gst_buffer_map (outbuf, &outsize, NULL, GST_MAP_WRITE);
/* Y plane */
y_in = GST_BUFFER_DATA (inbuf);
y_out = GST_BUFFER_DATA (outbuf);
y_in = in_bufdata;
y_out = out_bufdata;
y_in += (vcrop->crop_top * vcrop->in.y_stride) + vcrop->crop_left;
dx = vcrop->out.width * 1;
y_in +=
(vcrop->crop_top * GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info,
0)) + vcrop->crop_left;
dx = GST_VIDEO_INFO_WIDTH (&vcrop->out.info) * 1;
for (i = 0; i < vcrop->out.height; ++i) {
for (i = 0; i < GST_VIDEO_INFO_HEIGHT (&vcrop->out.info); ++i) {
memcpy (y_out, y_in, dx);
y_in += vcrop->in.y_stride;
y_out += vcrop->out.y_stride;
y_in += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 0);
y_out += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->out.info, 0);
}
/* U + V planes */
u_in = GST_BUFFER_DATA (inbuf) + vcrop->in.u_off;
u_out = GST_BUFFER_DATA (outbuf) + vcrop->out.u_off;
u_in =
(guint8 *) in_bufdata + GST_VIDEO_INFO_PLANE_OFFSET (&vcrop->in.info, 1);
u_out =
(guint8 *) out_bufdata + GST_VIDEO_INFO_PLANE_OFFSET (&vcrop->out.info,
1);
u_in += (vcrop->crop_top / 2) * vcrop->in.u_stride;
u_in +=
(vcrop->crop_top / 2) * GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 1);
u_in += vcrop->crop_left / 2;
v_in = GST_BUFFER_DATA (inbuf) + vcrop->in.v_off;
v_out = GST_BUFFER_DATA (outbuf) + vcrop->out.v_off;
v_in =
(guint8 *) in_bufdata + GST_VIDEO_INFO_PLANE_OFFSET (&vcrop->in.info, 2);
v_out =
(guint8 *) out_bufdata + GST_VIDEO_INFO_PLANE_OFFSET (&vcrop->out.info,
2);
v_in += (vcrop->crop_top / 2) * vcrop->in.v_stride;
v_in +=
(vcrop->crop_top / 2) * GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 2);
v_in += vcrop->crop_left / 2;
dx = GST_ROUND_UP_2 (vcrop->out.width) / 2;
dx = GST_ROUND_UP_2 (GST_VIDEO_INFO_WIDTH (&vcrop->out.info)) / 2;
for (i = 0; i < GST_ROUND_UP_2 (vcrop->out.height) / 2; ++i) {
for (i = 0; i < GST_ROUND_UP_2 (GST_VIDEO_INFO_HEIGHT (&vcrop->out.info)) / 2;
++i) {
memcpy (u_out, u_in, dx);
memcpy (v_out, v_in, dx);
u_in += vcrop->in.u_stride;
u_out += vcrop->out.u_stride;
v_in += vcrop->in.v_stride;
v_out += vcrop->out.v_stride;
u_in += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 1);
u_out += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->out.info, 1);
v_in += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->in.info, 2);
v_out += GST_VIDEO_INFO_PLANE_STRIDE (&vcrop->out.info, 2);
}
gst_buffer_unmap (inbuf, in_bufdata, insize);
gst_buffer_unmap (outbuf, out_bufdata, outsize);
}
static GstFlowReturn
@ -552,9 +540,10 @@ gst_video_crop_transform_dimension_value (const GValue * src_val,
return ret;
}
/* TODO use filter_caps */
static GstCaps *
gst_video_crop_transform_caps (GstBaseTransform * trans,
GstPadDirection direction, GstCaps * caps)
GstPadDirection direction, GstCaps * caps, GstCaps * filter_caps)
{
GstVideoCrop *vcrop;
GstCaps *other_caps;
@ -618,6 +607,13 @@ gst_video_crop_transform_caps (GstBaseTransform * trans,
other_caps = NULL;
}
if (other_caps && filter_caps) {
GstCaps *tmp = gst_caps_intersect_full (filter_caps, other_caps,
GST_CAPS_INTERSECT_FIRST);
gst_caps_replace (&other_caps, tmp);
gst_caps_unref (tmp);
}
return other_caps;
}
@ -633,8 +629,10 @@ gst_video_crop_set_caps (GstBaseTransform * trans, GstCaps * incaps,
if (!gst_video_crop_get_image_details_from_caps (crop, &crop->out, outcaps))
goto wrong_output;
if (G_UNLIKELY ((crop->crop_left + crop->crop_right) >= crop->in.width ||
(crop->crop_top + crop->crop_bottom) >= crop->in.height))
if (G_UNLIKELY ((crop->crop_left + crop->crop_right) >=
GST_VIDEO_INFO_WIDTH (&crop->in.info)
|| (crop->crop_top + crop->crop_bottom) >=
GST_VIDEO_INFO_HEIGHT (&crop->in.info)))
goto cropping_too_much;
GST_LOG_OBJECT (crop, "incaps = %" GST_PTR_FORMAT ", outcaps = %"

11
gst/videocrop/gstvideocrop.h
View file

@ -47,19 +47,10 @@ struct _GstVideoCropImageDetails
/*< private >*/
VideoCropPixelFormat packing;
guint width;
guint height;
guint size;
GstVideoInfo info;
/* for packed RGB and YUV */
guint stride;
guint bytes_per_pixel;
guint8 macro_y_off; /* for YUY2, YVYU, UYVY, Y offset within macropixel in bytes */
/* for planar YUV */
guint y_stride, y_off;
guint u_stride, u_off;
guint v_stride, v_off;
};
typedef struct _GstVideoCrop GstVideoCrop;