/**
* SECTION:element-videoscale
- * @see_also: videorate, ffmpegcolorspace
+ * @see_also: videorate, videoconvert
*
* This element resizes video frames. By default the element will try to
* negotiate to the same size on the source and sinkpad so that no scaling
* <refsect2>
* <title>Example pipelines</title>
* |[
- * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! ffmpegcolorspace ! videoscale ! ximagesink
+ * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videoconvert ! videoscale ! ximagesink
* ]| Decode an Ogg/Theora and display the video using ximagesink. Since
* ximagesink cannot perform scaling, the video scaling will be performed by
* videoscale when you resize the video window.
* To create the test Ogg/Theora file refer to the documentation of theoraenc.
* |[
- * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videoscale ! video/x-raw-yuv, width=50 ! xvimagesink
+ * gst-launch -v filesrc location=videotestsrc.ogg ! oggdemux ! theoradec ! videoscale ! video/x-raw, width=50 ! xvimagesink
* ]| Decode an Ogg/Theora and display the video using xvimagesink with a width
* of 50.
* </refsect2>
* Last reviewed on 2006-03-02 (0.10.4)
*/
+/*
+ * Formulas for PAR, DAR, width and height relations:
+ *
+ * dar_n w par_n
+ * ----- = - * -----
+ * dar_d h par_d
+ *
+ * par_n h dar_n
+ * ----- = - * -----
+ * par_d w dar_d
+ *
+ * dar_n par_d
+ * w = h * ----- * -----
+ * dar_d par_n
+ *
+ * dar_d par_n
+ * h = w * ----- * -----
+ * dar_n par_d
+ */
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
-#include <gst/video/video.h>
-#include <liboil/liboil.h>
+#include <math.h>
+
+#include <gst/video/gstmetavideo.h>
#include "gstvideoscale.h"
+#include "gstvideoscaleorc.h"
#include "vs_image.h"
#include "vs_4tap.h"
-
+#include "vs_fill_borders.h"
/* debug variable definition */
GST_DEBUG_CATEGORY (video_scale_debug);
-/* elementfactory information */
-static const GstElementDetails video_scale_details =
-GST_ELEMENT_DETAILS ("Video scaler",
- "Filter/Effect/Video",
- "Resizes video",
- "Wim Taymans <wim.taymans@chello.be>");
-
-#define DEFAULT_PROP_METHOD GST_VIDEO_SCALE_BILINEAR
+#define DEFAULT_PROP_METHOD GST_VIDEO_SCALE_BILINEAR
+#define DEFAULT_PROP_ADD_BORDERS FALSE
enum
{
PROP_0,
- PROP_METHOD
+ PROP_METHOD,
+ PROP_ADD_BORDERS
/* FILL ME */
};
-static GstStaticCaps gst_video_scale_format_caps[] = {
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBx),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_xRGB),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRx),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_xBGR),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGBA),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_ARGB),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_BGRA),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_ABGR),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_BGR),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("AYUV")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("YUY2")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("YVYU")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("UYVY")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("Y800")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("I420")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_YUV ("YV12")),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB_16),
- GST_STATIC_CAPS (GST_VIDEO_CAPS_RGB_15)
-};
+#undef GST_VIDEO_SIZE_RANGE
+#define GST_VIDEO_SIZE_RANGE "(int) [ 1, 32767]"
-enum
-{
- GST_VIDEO_SCALE_RGBx = 0,
- GST_VIDEO_SCALE_xRGB,
- GST_VIDEO_SCALE_BGRx,
- GST_VIDEO_SCALE_xBGR,
- GST_VIDEO_SCALE_RGBA,
- GST_VIDEO_SCALE_ARGB,
- GST_VIDEO_SCALE_BGRA,
- GST_VIDEO_SCALE_ABGR,
- GST_VIDEO_SCALE_RGB,
- GST_VIDEO_SCALE_BGR,
- GST_VIDEO_SCALE_AYUV,
- GST_VIDEO_SCALE_YUY2,
- GST_VIDEO_SCALE_YVYU,
- GST_VIDEO_SCALE_UYVY,
- GST_VIDEO_SCALE_Y,
- GST_VIDEO_SCALE_I420,
- GST_VIDEO_SCALE_YV12,
- GST_VIDEO_SCALE_RGB565,
- GST_VIDEO_SCALE_RGB555
+#define GST_VIDEO_FORMATS "{ \"I420\", \"YV12\", \"YUY2\", \"UYVY\", \"AYUV\", \"RGBx\", " \
+ "\"BGRx\", \"xRGB\", \"xBGR\", \"RGBA\", \"BGRA\", \"ARGB\", \"ABGR\", \"RGB\", " \
+ "\"BGR\", \"Y41B\", \"Y42B\", \"YVYU\", \"Y444\", \"GRAY8\", \"GRAY16_BE\", \"GRAY16_LE\", " \
+ "\"v308\", \"Y800\", \"Y16\", \"RGB16\", \"RGB15\", \"ARGB64\", \"AYUV64\" } "
+
+
+static GstStaticCaps gst_video_scale_format_caps[] = {
+ GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE (GST_VIDEO_FORMATS))
};
#define GST_TYPE_VIDEO_SCALE_METHOD (gst_video_scale_method_get_type())
static GstCaps *
gst_video_scale_get_capslist (void)
{
- static GstCaps *caps;
+ static GstCaps *caps = NULL;
+ static volatile gsize inited = 0;
- if (caps == NULL) {
- int i;
+ if (g_once_init_enter (&inited)) {
+ gint i;
+
+ g_assert (caps == NULL);
caps = gst_caps_new_empty ();
for (i = 0; i < G_N_ELEMENTS (gst_video_scale_format_caps); i++)
gst_caps_append (caps,
gst_caps_make_writable
(gst_static_caps_get (&gst_video_scale_format_caps[i])));
+ g_once_init_leave (&inited, 1);
}
return caps;
gst_video_scale_src_template_factory (void)
{
return gst_pad_template_new ("src", GST_PAD_SRC, GST_PAD_ALWAYS,
- gst_caps_ref (gst_video_scale_get_capslist ()));
+ gst_video_scale_get_capslist ());
}
static GstPadTemplate *
gst_video_scale_sink_template_factory (void)
{
return gst_pad_template_new ("sink", GST_PAD_SINK, GST_PAD_ALWAYS,
- gst_caps_ref (gst_video_scale_get_capslist ()));
+ gst_video_scale_get_capslist ());
}
-static void gst_video_scale_base_init (gpointer g_class);
-
-static void gst_video_scale_class_init (GstVideoScaleClass * klass);
-
-static void gst_video_scale_init (GstVideoScale * videoscale);
-
static void gst_video_scale_finalize (GstVideoScale * videoscale);
-
static gboolean gst_video_scale_src_event (GstBaseTransform * trans,
GstEvent * event);
/* base transform vmethods */
static GstCaps *gst_video_scale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps);
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter);
static gboolean gst_video_scale_set_caps (GstBaseTransform * trans,
GstCaps * in, GstCaps * out);
static gboolean gst_video_scale_get_unit_size (GstBaseTransform * trans,
- GstCaps * caps, guint * size);
+ GstCaps * caps, gsize * size);
+static gboolean gst_video_scale_setup_allocation (GstBaseTransform * trans,
+ GstQuery * query);
static GstFlowReturn gst_video_scale_transform (GstBaseTransform * trans,
GstBuffer * in, GstBuffer * out);
static void gst_video_scale_fixate_caps (GstBaseTransform * base,
static void gst_video_scale_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
-static GstElementClass *parent_class = NULL;
-
-
-GType
-gst_video_scale_get_type (void)
-{
- static GType video_scale_type = 0;
-
- if (!video_scale_type) {
- static const GTypeInfo video_scale_info = {
- sizeof (GstVideoScaleClass),
- gst_video_scale_base_init,
- NULL,
- (GClassInitFunc) gst_video_scale_class_init,
- NULL,
- NULL,
- sizeof (GstVideoScale),
- 0,
- (GInstanceInitFunc) gst_video_scale_init,
- };
-
- video_scale_type =
- g_type_register_static (GST_TYPE_BASE_TRANSFORM, "GstVideoScale",
- &video_scale_info, 0);
- }
- return video_scale_type;
-}
-
-static void
-gst_video_scale_base_init (gpointer g_class)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (g_class);
-
- gst_element_class_set_details (element_class, &video_scale_details);
-
- gst_element_class_add_pad_template (element_class,
- gst_video_scale_sink_template_factory ());
- gst_element_class_add_pad_template (element_class,
- gst_video_scale_src_template_factory ());
-}
+#define gst_video_scale_parent_class parent_class
+G_DEFINE_TYPE (GstVideoScale, gst_video_scale, GST_TYPE_VIDEO_FILTER);
static void
gst_video_scale_class_init (GstVideoScaleClass * klass)
{
- GObjectClass *gobject_class;
- GstBaseTransformClass *trans_class;
-
- gobject_class = (GObjectClass *) klass;
- trans_class = (GstBaseTransformClass *) klass;
+ GObjectClass *gobject_class = (GObjectClass *) klass;
+ GstElementClass *element_class = (GstElementClass *) klass;
+ GstBaseTransformClass *trans_class = (GstBaseTransformClass *) klass;
gobject_class->finalize = (GObjectFinalizeFunc) gst_video_scale_finalize;
gobject_class->set_property = gst_video_scale_set_property;
GST_TYPE_VIDEO_SCALE_METHOD, DEFAULT_PROP_METHOD,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+ g_object_class_install_property (gobject_class, PROP_ADD_BORDERS,
+ g_param_spec_boolean ("add-borders", "Add Borders",
+ "Add black borders if necessary to keep the display aspect ratio",
+ DEFAULT_PROP_ADD_BORDERS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
+
+ gst_element_class_set_details_simple (element_class,
+ "Video scaler", "Filter/Converter/Video/Scaler",
+ "Resizes video", "Wim Taymans <wim.taymans@chello.be>");
+
+ gst_element_class_add_pad_template (element_class,
+ gst_video_scale_sink_template_factory ());
+ gst_element_class_add_pad_template (element_class,
+ gst_video_scale_src_template_factory ());
+
trans_class->transform_caps =
GST_DEBUG_FUNCPTR (gst_video_scale_transform_caps);
trans_class->set_caps = GST_DEBUG_FUNCPTR (gst_video_scale_set_caps);
trans_class->get_unit_size =
GST_DEBUG_FUNCPTR (gst_video_scale_get_unit_size);
+ trans_class->setup_allocation =
+ GST_DEBUG_FUNCPTR (gst_video_scale_setup_allocation);
trans_class->transform = GST_DEBUG_FUNCPTR (gst_video_scale_transform);
trans_class->fixate_caps = GST_DEBUG_FUNCPTR (gst_video_scale_fixate_caps);
trans_class->src_event = GST_DEBUG_FUNCPTR (gst_video_scale_src_event);
-
- trans_class->passthrough_on_same_caps = TRUE;
-
- parent_class = g_type_class_peek_parent (klass);
}
static void
gst_video_scale_init (GstVideoScale * videoscale)
{
- gst_base_transform_set_qos_enabled (GST_BASE_TRANSFORM (videoscale), TRUE);
videoscale->tmp_buf = NULL;
videoscale->method = DEFAULT_PROP_METHOD;
+ videoscale->add_borders = DEFAULT_PROP_ADD_BORDERS;
}
static void
vscale->method = g_value_get_enum (value);
GST_OBJECT_UNLOCK (vscale);
break;
+ case PROP_ADD_BORDERS:
+ GST_OBJECT_LOCK (vscale);
+ vscale->add_borders = g_value_get_boolean (value);
+ GST_OBJECT_UNLOCK (vscale);
+ gst_base_transform_reconfigure (GST_BASE_TRANSFORM_CAST (vscale));
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
g_value_set_enum (value, vscale->method);
GST_OBJECT_UNLOCK (vscale);
break;
+ case PROP_ADD_BORDERS:
+ GST_OBJECT_LOCK (vscale);
+ g_value_set_boolean (value, vscale->add_borders);
+ GST_OBJECT_UNLOCK (vscale);
+ break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
static GstCaps *
gst_video_scale_transform_caps (GstBaseTransform * trans,
- GstPadDirection direction, GstCaps * caps)
+ GstPadDirection direction, GstCaps * caps, GstCaps * filter)
{
- GstVideoScale *videoscale;
GstCaps *ret;
GstStructure *structure;
- const GValue *par;
- gint method;
+ gint i, n;
- /* this function is always called with a simple caps */
- g_return_val_if_fail (GST_CAPS_IS_SIMPLE (caps), NULL);
+ GST_DEBUG_OBJECT (trans,
+ "Transforming caps %" GST_PTR_FORMAT " in direction %s", caps,
+ (direction == GST_PAD_SINK) ? "sink" : "src");
- videoscale = GST_VIDEO_SCALE (trans);
-
- GST_OBJECT_LOCK (videoscale);
- method = videoscale->method;
- GST_OBJECT_UNLOCK (videoscale);
+ ret = gst_caps_new_empty ();
+ n = gst_caps_get_size (caps);
+ for (i = 0; i < n; i++) {
+ structure = gst_caps_get_structure (caps, i);
- structure = gst_caps_get_structure (caps, 0);
+ /* If this is already expressed by the existing caps
+ * skip this structure */
+ if (i > 0 && gst_caps_is_subset_structure (ret, structure))
+ continue;
- /* check compatibility of format and method before we copy the input caps */
- if (method == GST_VIDEO_SCALE_4TAP) {
- guint32 fourcc;
+ structure = gst_structure_copy (structure);
+ gst_structure_set (structure,
+ "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
+ "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
- if (!gst_structure_has_name (structure, "video/x-raw-yuv"))
- goto method_not_implemented_for_format;
- if (!gst_structure_get_fourcc (structure, "format", &fourcc))
- goto method_not_implemented_for_format;
- if (fourcc != GST_MAKE_FOURCC ('I', '4', '2', '0') &&
- fourcc != GST_MAKE_FOURCC ('Y', 'V', '1', '2'))
- goto method_not_implemented_for_format;
+ /* if pixel aspect ratio, make a range of it */
+ if (gst_structure_has_field (structure, "pixel-aspect-ratio")) {
+ gst_structure_set (structure, "pixel-aspect-ratio",
+ GST_TYPE_FRACTION_RANGE, 1, G_MAXINT, G_MAXINT, 1, NULL);
+ }
+ gst_caps_append_structure (ret, structure);
}
- ret = gst_caps_copy (caps);
- structure = gst_structure_copy (gst_caps_get_structure (ret, 0));
-
- gst_structure_set (structure,
- "width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
- "height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
-
- gst_caps_merge_structure (ret, gst_structure_copy (structure));
+ if (filter) {
+ GstCaps *intersection;
- /* if pixel aspect ratio, make a range of it */
- if ((par = gst_structure_get_value (structure, "pixel-aspect-ratio"))) {
- gst_structure_set (structure,
- "pixel-aspect-ratio", GST_TYPE_FRACTION_RANGE, 0, 1, G_MAXINT, 1, NULL);
-
- gst_caps_merge_structure (ret, structure);
- } else {
- gst_structure_free (structure);
+ intersection =
+ gst_caps_intersect_full (filter, ret, GST_CAPS_INTERSECT_FIRST);
+ gst_caps_unref (ret);
+ ret = intersection;
}
GST_DEBUG_OBJECT (trans, "returning caps: %" GST_PTR_FORMAT, ret);
return ret;
-
-method_not_implemented_for_format:
- {
- GST_DEBUG_OBJECT (trans, "method %d not implemented for format %"
- GST_PTR_FORMAT ", returning empty caps", method, caps);
- return gst_caps_new_empty ();
- }
}
-static int
-gst_video_scale_get_format (GstCaps * caps)
-{
- int i;
- GstCaps *icaps, *scaps;
-
- for (i = 0; i < G_N_ELEMENTS (gst_video_scale_format_caps); i++) {
- scaps = gst_static_caps_get (&gst_video_scale_format_caps[i]);
- icaps = gst_caps_intersect (caps, scaps);
- if (!gst_caps_is_empty (icaps)) {
- gst_caps_unref (icaps);
- return i;
- }
- gst_caps_unref (icaps);
- }
-
- return -1;
-}
-/* calculate the size of a buffer */
static gboolean
-gst_video_scale_prepare_size (GstVideoScale * videoscale, gint format,
- VSImage * img, gint width, gint height, guint * size)
+gst_video_scale_setup_allocation (GstBaseTransform * trans, GstQuery * query)
{
- gboolean res = TRUE;
-
- img->width = width;
- img->height = height;
-
- switch (format) {
- case GST_VIDEO_SCALE_RGBx:
- case GST_VIDEO_SCALE_xRGB:
- case GST_VIDEO_SCALE_BGRx:
- case GST_VIDEO_SCALE_xBGR:
- case GST_VIDEO_SCALE_RGBA:
- case GST_VIDEO_SCALE_ARGB:
- case GST_VIDEO_SCALE_BGRA:
- case GST_VIDEO_SCALE_ABGR:
- case GST_VIDEO_SCALE_AYUV:
- img->stride = img->width * 4;
- *size = img->stride * img->height;
- break;
- case GST_VIDEO_SCALE_RGB:
- case GST_VIDEO_SCALE_BGR:
- img->stride = GST_ROUND_UP_4 (img->width * 3);
- *size = img->stride * img->height;
- break;
- case GST_VIDEO_SCALE_YUY2:
- case GST_VIDEO_SCALE_YVYU:
- case GST_VIDEO_SCALE_UYVY:
- img->stride = GST_ROUND_UP_4 (img->width * 2);
- *size = img->stride * img->height;
- break;
- case GST_VIDEO_SCALE_Y:
- img->stride = GST_ROUND_UP_4 (img->width);
- *size = img->stride * img->height;
- break;
- case GST_VIDEO_SCALE_I420:
- case GST_VIDEO_SCALE_YV12:
- {
- gulong img_u_stride, img_u_height;
-
- img->stride = GST_ROUND_UP_4 (img->width);
-
- img_u_height = GST_ROUND_UP_2 (img->height) / 2;
- img_u_stride = GST_ROUND_UP_4 (img->stride / 2);
+ GstBufferPool *pool = NULL;
+ guint size, min, max, prefix, alignment;
- *size = img->stride * GST_ROUND_UP_2 (img->height) +
- 2 * img_u_stride * img_u_height;
- break;
- }
- case GST_VIDEO_SCALE_RGB565:
- img->stride = GST_ROUND_UP_4 (img->width * 2);
- *size = img->stride * img->height;
- break;
- case GST_VIDEO_SCALE_RGB555:
- img->stride = GST_ROUND_UP_4 (img->width * 2);
- *size = img->stride * img->height;
- break;
- default:
- goto unknown_format;
- }
+ gst_query_parse_allocation_params (query, &size, &min, &max, &prefix,
+ &alignment, &pool);
- return res;
+ if (pool) {
+ GstStructure *config;
- /* ERRORS */
-unknown_format:
- {
- GST_ELEMENT_ERROR (videoscale, STREAM, NOT_IMPLEMENTED, (NULL),
- ("Unsupported format %d", videoscale->format));
- return FALSE;
+ config = gst_buffer_pool_get_config (pool);
+ gst_buffer_pool_config_add_meta (config, GST_META_API_VIDEO);
+ gst_buffer_pool_set_config (pool, config);
}
-}
-
-static gboolean
-parse_caps (GstCaps * caps, gint * format, gint * width, gint * height)
-{
- gboolean ret;
- GstStructure *structure;
-
- structure = gst_caps_get_structure (caps, 0);
- ret = gst_structure_get_int (structure, "width", width);
- ret &= gst_structure_get_int (structure, "height", height);
-
- if (format)
- *format = gst_video_scale_get_format (caps);
-
- return ret;
+ return TRUE;
}
static gboolean
gst_video_scale_set_caps (GstBaseTransform * trans, GstCaps * in, GstCaps * out)
{
- GstVideoScale *videoscale;
+ GstVideoScale *videoscale = GST_VIDEO_SCALE (trans);
gboolean ret;
+ GstVideoInfo in_info, out_info;
+ gint from_dar_n, from_dar_d, to_dar_n, to_dar_d;
- videoscale = GST_VIDEO_SCALE (trans);
-
- ret = parse_caps (in, &videoscale->format, &videoscale->from_width,
- &videoscale->from_height);
- ret &= parse_caps (out, NULL, &videoscale->to_width, &videoscale->to_height);
+ ret = gst_video_info_from_caps (&in_info, in);
+ ret &= gst_video_info_from_caps (&out_info, out);
if (!ret)
- goto done;
+ goto invalid_formats;
- if (!(ret = gst_video_scale_prepare_size (videoscale, videoscale->format,
- &videoscale->src, videoscale->from_width, videoscale->from_height,
- &videoscale->src_size)))
- /* prepare size has posted an error when it returns FALSE */
- goto done;
+ if (!gst_util_fraction_multiply (in_info.width,
+ in_info.height, out_info.par_n, out_info.par_d, &from_dar_n,
+ &from_dar_d)) {
+ from_dar_n = from_dar_d = -1;
+ }
- if (!(ret = gst_video_scale_prepare_size (videoscale, videoscale->format,
- &videoscale->dest, videoscale->to_width, videoscale->to_height,
- &videoscale->dest_size)))
- /* prepare size has posted an error when it returns FALSE */
- goto done;
+ if (!gst_util_fraction_multiply (out_info.width,
+ out_info.height, out_info.par_n, out_info.par_d, &to_dar_n,
+ &to_dar_d)) {
+ to_dar_n = to_dar_d = -1;
+ }
+
+ videoscale->borders_w = videoscale->borders_h = 0;
+ if (to_dar_n != from_dar_n || to_dar_d != from_dar_d) {
+ if (videoscale->add_borders) {
+ gint n, d, to_h, to_w;
+
+ if (from_dar_n != -1 && from_dar_d != -1
+ && gst_util_fraction_multiply (from_dar_n, from_dar_d, out_info.par_n,
+ out_info.par_d, &n, &d)) {
+ to_h = gst_util_uint64_scale_int (out_info.width, d, n);
+ if (to_h <= out_info.height) {
+ videoscale->borders_h = out_info.height - to_h;
+ videoscale->borders_w = 0;
+ } else {
+ to_w = gst_util_uint64_scale_int (out_info.height, n, d);
+ g_assert (to_w <= out_info.width);
+ videoscale->borders_h = 0;
+ videoscale->borders_w = out_info.width - to_w;
+ }
+ } else {
+ GST_WARNING_OBJECT (videoscale, "Can't calculate borders");
+ }
+ } else {
+ GST_WARNING_OBJECT (videoscale, "Can't keep DAR!");
+ }
+ }
if (videoscale->tmp_buf)
g_free (videoscale->tmp_buf);
+ videoscale->tmp_buf = g_malloc (out_info.width * 8 * 4);
- videoscale->tmp_buf = g_malloc (videoscale->dest.stride * 4);
+ gst_base_transform_set_passthrough (trans,
+ (in_info.width == out_info.width && in_info.height == out_info.height));
- /* FIXME: par */
- GST_DEBUG_OBJECT (videoscale, "from=%dx%d, size %d -> to=%dx%d, size %d",
- videoscale->from_width, videoscale->from_height, videoscale->src_size,
- videoscale->to_width, videoscale->to_height, videoscale->dest_size);
+ GST_DEBUG_OBJECT (videoscale, "from=%dx%d (par=%d/%d dar=%d/%d), size %d "
+ "-> to=%dx%d (par=%d/%d dar=%d/%d borders=%d:%d), size %d",
+ in_info.width, in_info.height, out_info.par_n, out_info.par_d,
+ from_dar_n, from_dar_d, in_info.size, out_info.width,
+ out_info.height, out_info.par_n, out_info.par_d, to_dar_n, to_dar_d,
+ videoscale->borders_w, videoscale->borders_h, out_info.size);
-done:
- return ret;
+ videoscale->from_info = in_info;
+ videoscale->to_info = out_info;
+
+ return TRUE;
+
+ /* ERRORS */
+invalid_formats:
+ {
+ GST_DEBUG_OBJECT (videoscale, "could not parse formats");
+ return FALSE;
+ }
}
static gboolean
gst_video_scale_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
- guint * size)
+ gsize * size)
{
- GstVideoScale *videoscale;
- gint format, width, height;
- VSImage img;
-
- g_assert (size);
-
- videoscale = GST_VIDEO_SCALE (trans);
+ GstVideoInfo info;
- if (!parse_caps (caps, &format, &width, &height))
+ if (!gst_video_info_from_caps (&info, caps))
return FALSE;
- if (!gst_video_scale_prepare_size (videoscale, format, &img, width, height,
- size))
- return FALSE;
+ *size = info.size;
return TRUE;
}
{
GstStructure *ins, *outs;
const GValue *from_par, *to_par;
+ GValue fpar = { 0, }, tpar = {
+ 0,};
g_return_if_fail (gst_caps_is_fixed (caps));
from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
- /* we have both PAR but they might not be fixated */
- if (from_par && to_par) {
- gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
+ /* If we're fixating from the sinkpad we always set the PAR and
+ * assume that missing PAR on the sinkpad means 1/1 and
+ * missing PAR on the srcpad means undefined
+ */
+ if (direction == GST_PAD_SINK) {
+ if (!from_par) {
+ g_value_init (&fpar, GST_TYPE_FRACTION);
+ gst_value_set_fraction (&fpar, 1, 1);
+ from_par = &fpar;
+ }
+ if (!to_par) {
+ g_value_init (&tpar, GST_TYPE_FRACTION_RANGE);
+ gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1);
+ to_par = &tpar;
+ }
+ } else {
+ if (!to_par) {
+ g_value_init (&tpar, GST_TYPE_FRACTION);
+ gst_value_set_fraction (&tpar, 1, 1);
+ to_par = &tpar;
- gint count = 0, w = 0, h = 0;
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
+ NULL);
+ }
+ if (!from_par) {
+ g_value_init (&fpar, GST_TYPE_FRACTION);
+ gst_value_set_fraction (&fpar, 1, 1);
+ from_par = &fpar;
+ }
+ }
- guint num, den;
+ /* we have both PAR but they might not be fixated */
+ {
+ gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
+ gint w = 0, h = 0;
+ gint from_dar_n, from_dar_d;
+ gint num, den;
/* from_par should be fixed */
g_return_if_fail (gst_value_is_fixed (from_par));
from_par_n = gst_value_get_fraction_numerator (from_par);
from_par_d = gst_value_get_fraction_denominator (from_par);
- /* fixate the out PAR */
- if (!gst_value_is_fixed (to_par)) {
- GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", from_par_n,
- from_par_d);
- gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio",
- from_par_n, from_par_d);
- }
+ gst_structure_get_int (ins, "width", &from_w);
+ gst_structure_get_int (ins, "height", &from_h);
- to_par_n = gst_value_get_fraction_numerator (to_par);
- to_par_d = gst_value_get_fraction_denominator (to_par);
+ gst_structure_get_int (outs, "width", &w);
+ gst_structure_get_int (outs, "height", &h);
/* if both width and height are already fixed, we can't do anything
* about it anymore */
- if (gst_structure_get_int (outs, "width", &w))
- ++count;
- if (gst_structure_get_int (outs, "height", &h))
- ++count;
- if (count == 2) {
+ if (w && h) {
+ guint n, d;
+
GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
w, h);
- return;
+ if (!gst_value_is_fixed (to_par)) {
+ if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
+ from_par_n, from_par_d, w, h)) {
+ GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", n, d);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
+ gst_structure_fixate_field_nearest_fraction (outs,
+ "pixel-aspect-ratio", n, d);
+ else if (n != d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ n, d, NULL);
+ }
+ }
+ goto done;
}
- gst_structure_get_int (ins, "width", &from_w);
- gst_structure_get_int (ins, "height", &from_h);
-
- if (!gst_video_calculate_display_ratio (&num, &den, from_w, from_h,
- from_par_n, from_par_d, to_par_n, to_par_d)) {
+ /* Calculate input DAR */
+ if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
+ &from_dar_n, &from_dar_d)) {
GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
("Error calculating the output scaled size - integer overflow"));
- return;
+ goto done;
}
- GST_DEBUG_OBJECT (base,
- "scaling input with %dx%d and PAR %d/%d to output PAR %d/%d",
- from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
- GST_DEBUG_OBJECT (base, "resulting output should respect ratio of %d/%d",
- num, den);
+ GST_DEBUG_OBJECT (base, "Input DAR is %d/%d", from_dar_n, from_dar_d);
- /* now find a width x height that respects this display ratio.
- * prefer those that have one of w/h the same as the incoming video
- * using wd / hd = num / den */
-
- /* if one of the output width or height is fixed, we work from there */
+ /* If either width or height are fixed there's not much we
+ * can do either except choosing a height or width and PAR
+ * that matches the DAR as good as possible
+ */
if (h) {
- GST_DEBUG_OBJECT (base, "height is fixed,scaling width");
+ GstStructure *tmp;
+ gint set_w, set_par_n, set_par_d;
+
+ GST_DEBUG_OBJECT (base, "height is fixed (%d)", h);
+
+ /* If the PAR is fixed too, there's not much to do
+ * except choosing the width that is nearest to the
+ * width with the same DAR */
+ if (gst_value_is_fixed (to_par)) {
+ to_par_n = gst_value_get_fraction_numerator (to_par);
+ to_par_d = gst_value_get_fraction_denominator (to_par);
+
+ GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
+
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
+ to_par_n, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
+ }
+
+ w = (guint) gst_util_uint64_scale_int (h, num, den);
+ gst_structure_fixate_field_nearest_int (outs, "width", w);
+
+ goto done;
+ }
+
+ /* The PAR is not fixed and it's quite likely that we can set
+ * an arbitrary PAR. */
+
+ /* Check if we can keep the input width */
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
+ gst_structure_get_int (tmp, "width", &set_w);
+
+ /* Might have failed but try to keep the DAR nonetheless by
+ * adjusting the PAR */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
+ &to_par_n, &to_par_d)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ gst_structure_free (tmp);
+ goto done;
+ }
+
+ if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
+ gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
+ gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
+ to_par_n, to_par_d);
+ gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
+ &set_par_d);
+ gst_structure_free (tmp);
+
+ /* Check if the adjusted PAR is accepted */
+ if (set_par_n == to_par_n && set_par_d == to_par_d) {
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w,
+ "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
+ NULL);
+ goto done;
+ }
+
+ /* Otherwise scale the width to the new PAR and check if the
+ * adjusted with is accepted. If all that fails we can't keep
+ * the DAR */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
+ set_par_n, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
+ }
+
w = (guint) gst_util_uint64_scale_int (h, num, den);
+ gst_structure_fixate_field_nearest_int (outs, "width", w);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
+
+ goto done;
} else if (w) {
- GST_DEBUG_OBJECT (base, "width is fixed, scaling height");
+ GstStructure *tmp;
+ gint set_h, set_par_n, set_par_d;
+
+ GST_DEBUG_OBJECT (base, "width is fixed (%d)", w);
+
+ /* If the PAR is fixed too, there's not much to do
+ * except choosing the height that is nearest to the
+ * height with the same DAR */
+ if (gst_value_is_fixed (to_par)) {
+ to_par_n = gst_value_get_fraction_numerator (to_par);
+ to_par_d = gst_value_get_fraction_denominator (to_par);
+
+ GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
+
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
+ to_par_n, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
+ }
+
+ h = (guint) gst_util_uint64_scale_int (w, den, num);
+ gst_structure_fixate_field_nearest_int (outs, "height", h);
+
+ goto done;
+ }
+
+ /* The PAR is not fixed and it's quite likely that we can set
+ * an arbitrary PAR. */
+
+ /* Check if we can keep the input height */
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
+ gst_structure_get_int (tmp, "height", &set_h);
+
+ /* Might have failed but try to keep the DAR nonetheless by
+ * adjusting the PAR */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, w,
+ &to_par_n, &to_par_d)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ gst_structure_free (tmp);
+ goto done;
+ }
+ if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
+ gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
+ gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
+ to_par_n, to_par_d);
+ gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
+ &set_par_d);
+ gst_structure_free (tmp);
+
+ /* Check if the adjusted PAR is accepted */
+ if (set_par_n == to_par_n && set_par_d == to_par_d) {
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "height", G_TYPE_INT, set_h,
+ "pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
+ NULL);
+ goto done;
+ }
+
+ /* Otherwise scale the height to the new PAR and check if the
+ * adjusted with is accepted. If all that fails we can't keep
+ * the DAR */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
+ set_par_n, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
+ }
+
h = (guint) gst_util_uint64_scale_int (w, den, num);
+ gst_structure_fixate_field_nearest_int (outs, "height", h);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
+
+ goto done;
+ } else if (gst_value_is_fixed (to_par)) {
+ GstStructure *tmp;
+ gint set_h, set_w, f_h, f_w;
+
+ to_par_n = gst_value_get_fraction_numerator (to_par);
+ to_par_d = gst_value_get_fraction_denominator (to_par);
+
+ /* Calculate scale factor for the PAR change */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_n,
+ to_par_d, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
+ }
+
+ /* Try to keep the input height (because of interlacing) */
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
+ gst_structure_get_int (tmp, "height", &set_h);
+
+ /* This might have failed but try to scale the width
+ * to keep the DAR nonetheless */
+ w = (guint) gst_util_uint64_scale_int (set_h, num, den);
+ gst_structure_fixate_field_nearest_int (tmp, "width", w);
+ gst_structure_get_int (tmp, "width", &set_w);
+ gst_structure_free (tmp);
+
+ /* We kept the DAR and the height is nearest to the original height */
+ if (set_w == w) {
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
+ G_TYPE_INT, set_h, NULL);
+ goto done;
+ }
+
+ f_h = set_h;
+ f_w = set_w;
+
+ /* If the former failed, try to keep the input width at least */
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
+ gst_structure_get_int (tmp, "width", &set_w);
+
+ /* This might have failed but try to scale the width
+ * to keep the DAR nonetheless */
+ h = (guint) gst_util_uint64_scale_int (set_w, den, num);
+ gst_structure_fixate_field_nearest_int (tmp, "height", h);
+ gst_structure_get_int (tmp, "height", &set_h);
+ gst_structure_free (tmp);
+
+ /* We kept the DAR and the width is nearest to the original width */
+ if (set_h == h) {
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
+ G_TYPE_INT, set_h, NULL);
+ goto done;
+ }
+
+ /* If all this failed, keep the height that was nearest to the orignal
+ * height and the nearest possible width. This changes the DAR but
+ * there's not much else to do here.
+ */
+ gst_structure_set (outs, "width", G_TYPE_INT, f_w, "height", G_TYPE_INT,
+ f_h, NULL);
+ goto done;
} else {
- /* none of width or height is fixed, figure out both of them based only on
- * the input width and height */
- /* check hd / den is an integer scale factor, and scale wd with the PAR */
- if (from_h % den == 0) {
- GST_DEBUG_OBJECT (base, "keeping video height");
- h = from_h;
- w = (guint) gst_util_uint64_scale_int (h, num, den);
- } else if (from_w % num == 0) {
- GST_DEBUG_OBJECT (base, "keeping video width");
- w = from_w;
- h = (guint) gst_util_uint64_scale_int (w, den, num);
- } else {
- GST_DEBUG_OBJECT (base, "approximating but keeping video height");
- h = from_h;
- w = (guint) gst_util_uint64_scale_int (h, num, den);
+ GstStructure *tmp;
+ gint set_h, set_w, set_par_n, set_par_d, tmp2;
+
+ /* width, height and PAR are not fixed but passthrough is not possible */
+
+ /* First try to keep the height and width as good as possible
+ * and scale PAR */
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "height", from_h);
+ gst_structure_get_int (tmp, "height", &set_h);
+ gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
+ gst_structure_get_int (tmp, "width", &set_w);
+
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_h, set_w,
+ &to_par_n, &to_par_d)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
}
- }
- GST_DEBUG_OBJECT (base, "scaling to %dx%d", w, h);
- /* now fixate */
- gst_structure_fixate_field_nearest_int (outs, "width", w);
- gst_structure_fixate_field_nearest_int (outs, "height", h);
- } else {
- gint width, height;
+ if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
+ gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
+ gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
+ to_par_n, to_par_d);
+ gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
+ &set_par_d);
+ gst_structure_free (tmp);
+
+ if (set_par_n == to_par_n && set_par_d == to_par_d) {
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
+ G_TYPE_INT, set_h, NULL);
+
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
+ goto done;
+ }
- if (gst_structure_get_int (ins, "width", &width)) {
- if (gst_structure_has_field (outs, "width")) {
- gst_structure_fixate_field_nearest_int (outs, "width", width);
+ /* Otherwise try to scale width to keep the DAR with the set
+ * PAR and height */
+ if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, set_par_d,
+ set_par_n, &num, &den)) {
+ GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
+ ("Error calculating the output scaled size - integer overflow"));
+ goto done;
}
- }
- if (gst_structure_get_int (ins, "height", &height)) {
- if (gst_structure_has_field (outs, "height")) {
- gst_structure_fixate_field_nearest_int (outs, "height", height);
+
+ w = (guint) gst_util_uint64_scale_int (set_h, num, den);
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "width", w);
+ gst_structure_get_int (tmp, "width", &tmp2);
+ gst_structure_free (tmp);
+
+ if (tmp2 == w) {
+ gst_structure_set (outs, "width", G_TYPE_INT, tmp2, "height",
+ G_TYPE_INT, set_h, NULL);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
+ goto done;
+ }
+
+ /* ... or try the same with the height */
+ h = (guint) gst_util_uint64_scale_int (set_w, den, num);
+ tmp = gst_structure_copy (outs);
+ gst_structure_fixate_field_nearest_int (tmp, "height", h);
+ gst_structure_get_int (tmp, "height", &tmp2);
+ gst_structure_free (tmp);
+
+ if (tmp2 == h) {
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
+ G_TYPE_INT, tmp2, NULL);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
+ goto done;
}
+
+ /* If all fails we can't keep the DAR and take the nearest values
+ * for everything from the first try */
+ gst_structure_set (outs, "width", G_TYPE_INT, set_w, "height",
+ G_TYPE_INT, set_h, NULL);
+ if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
+ set_par_n != set_par_d)
+ gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
+ set_par_n, set_par_d, NULL);
}
}
+done:
GST_DEBUG_OBJECT (base, "fixated othercaps to %" GST_PTR_FORMAT, othercaps);
+
+ if (from_par == &fpar)
+ g_value_unset (&fpar);
+ if (to_par == &tpar)
+ g_value_unset (&tpar);
}
-static gboolean
-gst_video_scale_prepare_image (gint format, GstBuffer * buf,
- VSImage * img, VSImage * img_u, VSImage * img_v)
+static void
+gst_video_scale_setup_vs_image (VSImage * image, GstVideoFrame * frame,
+ gint component, gint b_w, gint b_h)
{
- gboolean res = TRUE;
+ GstVideoFormat format;
+ gint width, height;
+
+ format = frame->info.format;
+ width = frame->info.width;
+ height = frame->info.height;
+
+ image->real_width =
+ gst_video_format_get_component_width (format, component, width);
+ image->real_height =
+ gst_video_format_get_component_height (format, component, height);
+ image->width =
+ gst_video_format_get_component_width (format, component, MAX (1,
+ width - b_w));
+ image->height =
+ gst_video_format_get_component_height (format, component, MAX (1,
+ height - b_h));
+
+ image->border_top = (image->real_height - image->height) / 2;
+ image->border_bottom = image->real_height - image->height - image->border_top;
+
+ if (format == GST_VIDEO_FORMAT_YUY2 || format == GST_VIDEO_FORMAT_YVYU
+ || format == GST_VIDEO_FORMAT_UYVY) {
+ g_assert (component == 0);
+
+ image->border_left = (image->real_width - image->width) / 2;
+
+ if (image->border_left % 2 == 1)
+ image->border_left--;
+ image->border_right = image->real_width - image->width - image->border_left;
+ } else {
+ image->border_left = (image->real_width - image->width) / 2;
+ image->border_right = image->real_width - image->width - image->border_left;
+ }
+
+ image->real_pixels = frame->data[component];
+ image->stride = frame->info.stride[component];
- img->pixels = GST_BUFFER_DATA (buf);
+ image->pixels =
+ image->real_pixels + image->border_top * image->stride +
+ image->border_left * gst_video_format_get_pixel_stride (format,
+ component);
+}
+
+static const guint8 *
+_get_black_for_format (GstVideoFormat format)
+{
+ static const guint8 black[][4] = {
+ {255, 0, 0, 0}, /* 0 = ARGB, ABGR, xRGB, xBGR */
+ {0, 0, 0, 255}, /* 1 = RGBA, BGRA, RGBx, BGRx */
+ {255, 16, 128, 128}, /* 2 = AYUV */
+ {0, 0, 0, 0}, /* 3 = RGB and BGR */
+ {16, 128, 128, 0}, /* 4 = v301 */
+ {16, 128, 16, 128}, /* 5 = YUY2, YUYV */
+ {128, 16, 128, 16}, /* 6 = UYVY */
+ {16, 0, 0, 0}, /* 7 = Y */
+ {0, 0, 0, 0} /* 8 = RGB565, RGB666 */
+ };
switch (format) {
- case GST_VIDEO_SCALE_I420:
- case GST_VIDEO_SCALE_YV12:
- img_u->pixels = img->pixels + GST_ROUND_UP_2 (img->height) * img->stride;
- img_u->height = GST_ROUND_UP_2 (img->height) / 2;
- img_u->width = GST_ROUND_UP_2 (img->width) / 2;
- img_u->stride = GST_ROUND_UP_4 (img_u->width);
- memcpy (img_v, img_u, sizeof (*img_v));
- img_v->pixels = img_u->pixels + img_u->height * img_u->stride;
- break;
+ case GST_VIDEO_FORMAT_ARGB:
+ case GST_VIDEO_FORMAT_ABGR:
+ case GST_VIDEO_FORMAT_xRGB:
+ case GST_VIDEO_FORMAT_xBGR:
+ case GST_VIDEO_FORMAT_ARGB64:
+ return black[0];
+ case GST_VIDEO_FORMAT_RGBA:
+ case GST_VIDEO_FORMAT_BGRA:
+ case GST_VIDEO_FORMAT_RGBx:
+ case GST_VIDEO_FORMAT_BGRx:
+ return black[1];
+ case GST_VIDEO_FORMAT_AYUV:
+ case GST_VIDEO_FORMAT_AYUV64:
+ return black[2];
+ case GST_VIDEO_FORMAT_RGB:
+ case GST_VIDEO_FORMAT_BGR:
+ return black[3];
+ case GST_VIDEO_FORMAT_v308:
+ return black[4];
+ case GST_VIDEO_FORMAT_YUY2:
+ case GST_VIDEO_FORMAT_YVYU:
+ return black[5];
+ case GST_VIDEO_FORMAT_UYVY:
+ return black[6];
+ case GST_VIDEO_FORMAT_Y800:
+ case GST_VIDEO_FORMAT_GRAY8:
+ return black[7];
+ case GST_VIDEO_FORMAT_GRAY16_LE:
+ case GST_VIDEO_FORMAT_GRAY16_BE:
+ case GST_VIDEO_FORMAT_Y16:
+ return NULL; /* Handled by the caller */
+ case GST_VIDEO_FORMAT_I420:
+ case GST_VIDEO_FORMAT_YV12:
+ case GST_VIDEO_FORMAT_Y444:
+ case GST_VIDEO_FORMAT_Y42B:
+ case GST_VIDEO_FORMAT_Y41B:
+ return black[4]; /* Y, U, V, 0 */
+ case GST_VIDEO_FORMAT_RGB16:
+ case GST_VIDEO_FORMAT_RGB15:
+ return black[8];
default:
- break;
+ return NULL;
}
- return res;
}
static GstFlowReturn
gst_video_scale_transform (GstBaseTransform * trans, GstBuffer * in,
GstBuffer * out)
{
- GstVideoScale *videoscale;
+ GstVideoScale *videoscale = GST_VIDEO_SCALE (trans);
GstFlowReturn ret = GST_FLOW_OK;
- VSImage *dest;
- VSImage *src;
- VSImage dest_u;
- VSImage dest_v;
- VSImage src_u;
- VSImage src_v;
+ GstVideoFrame in_frame, out_frame;
+ VSImage dest[4] = { {NULL,}, };
+ VSImage src[4] = { {NULL,}, };
gint method;
-
- videoscale = GST_VIDEO_SCALE (trans);
+ const guint8 *black;
+ gboolean add_borders;
+ GstVideoFormat format;
+ gint i;
GST_OBJECT_LOCK (videoscale);
method = videoscale->method;
+ add_borders = videoscale->add_borders;
GST_OBJECT_UNLOCK (videoscale);
- src = &videoscale->src;
- dest = &videoscale->dest;
-
- gst_video_scale_prepare_image (videoscale->format, in, src, &src_u, &src_v);
- gst_video_scale_prepare_image (videoscale->format, out, dest, &dest_u,
- &dest_v);
-
- switch (method) {
- case GST_VIDEO_SCALE_NEAREST:
- GST_LOG_OBJECT (videoscale, "doing nearest scaling");
- switch (videoscale->format) {
- case GST_VIDEO_SCALE_RGBx:
- case GST_VIDEO_SCALE_xRGB:
- case GST_VIDEO_SCALE_BGRx:
- case GST_VIDEO_SCALE_xBGR:
- case GST_VIDEO_SCALE_RGBA:
- case GST_VIDEO_SCALE_ARGB:
- case GST_VIDEO_SCALE_BGRA:
- case GST_VIDEO_SCALE_ABGR:
- case GST_VIDEO_SCALE_AYUV:
- vs_image_scale_nearest_RGBA (dest, src, videoscale->tmp_buf);
+ format = videoscale->from_info.format;
+ black = _get_black_for_format (format);
+
+ if (videoscale->from_info.width == 1) {
+ method = GST_VIDEO_SCALE_NEAREST;
+ }
+ if (method == GST_VIDEO_SCALE_4TAP &&
+ (videoscale->from_info.width < 4 || videoscale->from_info.height < 4)) {
+ method = GST_VIDEO_SCALE_BILINEAR;
+ }
+
+ gst_video_frame_map (&in_frame, &videoscale->from_info, in, GST_MAP_READ);
+ gst_video_frame_map (&out_frame, &videoscale->to_info, out, GST_MAP_WRITE);
+
+ for (i = 0; i < in_frame.info.n_planes; i++) {
+ gst_video_scale_setup_vs_image (&src[i], &in_frame, i, 0, 0);
+ gst_video_scale_setup_vs_image (&dest[i], &out_frame, i,
+ videoscale->borders_w, videoscale->borders_h);
+ }
+
+ switch (format) {
+ case GST_VIDEO_FORMAT_RGBx:
+ case GST_VIDEO_FORMAT_xRGB:
+ case GST_VIDEO_FORMAT_BGRx:
+ case GST_VIDEO_FORMAT_xBGR:
+ case GST_VIDEO_FORMAT_RGBA:
+ case GST_VIDEO_FORMAT_ARGB:
+ case GST_VIDEO_FORMAT_BGRA:
+ case GST_VIDEO_FORMAT_ABGR:
+ case GST_VIDEO_FORMAT_AYUV:
+ if (add_borders)
+ vs_fill_borders_RGBA (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_RGBA (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_RGBA (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_RGBA (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_ARGB64:
+ case GST_VIDEO_FORMAT_AYUV64:
+ if (add_borders)
+ vs_fill_borders_AYUV64 (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_AYUV64 (&dest[0], &src[0],
+ videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_AYUV64 (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_AYUV64 (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_RGB:
+ case GST_VIDEO_FORMAT_BGR:
+ case GST_VIDEO_FORMAT_v308:
+ if (add_borders)
+ vs_fill_borders_RGB (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_RGB (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_RGB (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_RGB (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_YUY2:
+ case GST_VIDEO_FORMAT_YVYU:
+ if (add_borders)
+ vs_fill_borders_YUYV (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_YUYV (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_YUYV (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB:
- case GST_VIDEO_SCALE_BGR:
- vs_image_scale_nearest_RGB (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_YUYV (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_YUY2:
- case GST_VIDEO_SCALE_YVYU:
- vs_image_scale_nearest_YUYV (dest, src, videoscale->tmp_buf);
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_UYVY:
+ if (add_borders)
+ vs_fill_borders_UYVY (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_UYVY (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_UYVY:
- vs_image_scale_nearest_UYVY (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_UYVY (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_Y:
- vs_image_scale_nearest_Y (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_UYVY (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_I420:
- case GST_VIDEO_SCALE_YV12:
- vs_image_scale_nearest_Y (dest, src, videoscale->tmp_buf);
- vs_image_scale_nearest_Y (&dest_u, &src_u, videoscale->tmp_buf);
- vs_image_scale_nearest_Y (&dest_v, &src_v, videoscale->tmp_buf);
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_Y800:
+ case GST_VIDEO_FORMAT_GRAY8:
+ if (add_borders)
+ vs_fill_borders_Y (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_Y (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB565:
- vs_image_scale_nearest_RGB565 (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_Y (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB555:
- vs_image_scale_nearest_RGB555 (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_Y (&dest[0], &src[0], videoscale->tmp_buf);
break;
default:
- goto unsupported;
+ goto unknown_mode;
}
break;
- case GST_VIDEO_SCALE_BILINEAR:
- GST_LOG_OBJECT (videoscale, "doing bilinear scaling");
- switch (videoscale->format) {
- case GST_VIDEO_SCALE_RGBx:
- case GST_VIDEO_SCALE_xRGB:
- case GST_VIDEO_SCALE_BGRx:
- case GST_VIDEO_SCALE_xBGR:
- case GST_VIDEO_SCALE_RGBA:
- case GST_VIDEO_SCALE_ARGB:
- case GST_VIDEO_SCALE_BGRA:
- case GST_VIDEO_SCALE_ABGR:
- case GST_VIDEO_SCALE_AYUV:
- vs_image_scale_linear_RGBA (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_FORMAT_GRAY16_LE:
+ case GST_VIDEO_FORMAT_GRAY16_BE:
+ case GST_VIDEO_FORMAT_Y16:
+ if (add_borders)
+ vs_fill_borders_Y16 (&dest[0], 0);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_Y16 (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB:
- case GST_VIDEO_SCALE_BGR:
- vs_image_scale_linear_RGB (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_Y16 (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_YUY2:
- case GST_VIDEO_SCALE_YVYU:
- vs_image_scale_linear_YUYV (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_Y16 (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_UYVY:
- vs_image_scale_linear_UYVY (dest, src, videoscale->tmp_buf);
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_I420:
+ case GST_VIDEO_FORMAT_YV12:
+ case GST_VIDEO_FORMAT_Y444:
+ case GST_VIDEO_FORMAT_Y42B:
+ case GST_VIDEO_FORMAT_Y41B:
+ if (add_borders) {
+ vs_fill_borders_Y (&dest[0], black);
+ vs_fill_borders_Y (&dest[1], black + 1);
+ vs_fill_borders_Y (&dest[2], black + 2);
+ }
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_Y (&dest[0], &src[0], videoscale->tmp_buf);
+ vs_image_scale_nearest_Y (&dest[1], &src[1], videoscale->tmp_buf);
+ vs_image_scale_nearest_Y (&dest[2], &src[2], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_Y:
- vs_image_scale_linear_Y (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_Y (&dest[0], &src[0], videoscale->tmp_buf);
+ vs_image_scale_linear_Y (&dest[1], &src[1], videoscale->tmp_buf);
+ vs_image_scale_linear_Y (&dest[2], &src[2], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_I420:
- case GST_VIDEO_SCALE_YV12:
- vs_image_scale_linear_Y (dest, src, videoscale->tmp_buf);
- vs_image_scale_linear_Y (&dest_u, &src_u, videoscale->tmp_buf);
- vs_image_scale_linear_Y (&dest_v, &src_v, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_Y (&dest[0], &src[0], videoscale->tmp_buf);
+ vs_image_scale_4tap_Y (&dest[1], &src[1], videoscale->tmp_buf);
+ vs_image_scale_4tap_Y (&dest[2], &src[2], videoscale->tmp_buf);
+ break;
+ default:
+ goto unknown_mode;
+ }
+ break;
+ case GST_VIDEO_FORMAT_RGB16:
+ if (add_borders)
+ vs_fill_borders_RGB565 (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_RGB565 (&dest[0], &src[0],
+ videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB565:
- vs_image_scale_linear_RGB565 (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_RGB565 (&dest[0], &src[0], videoscale->tmp_buf);
break;
- case GST_VIDEO_SCALE_RGB555:
- vs_image_scale_linear_RGB555 (dest, src, videoscale->tmp_buf);
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_RGB565 (&dest[0], &src[0], videoscale->tmp_buf);
break;
default:
- goto unsupported;
+ goto unknown_mode;
}
break;
- case GST_VIDEO_SCALE_4TAP:
- GST_LOG_OBJECT (videoscale, "doing 4tap scaling");
- switch (videoscale->format) {
- case GST_VIDEO_SCALE_I420:
- case GST_VIDEO_SCALE_YV12:
- vs_image_scale_4tap_Y (dest, src, videoscale->tmp_buf);
- vs_image_scale_4tap_Y (&dest_u, &src_u, videoscale->tmp_buf);
- vs_image_scale_4tap_Y (&dest_v, &src_v, videoscale->tmp_buf);
+ case GST_VIDEO_FORMAT_RGB15:
+ if (add_borders)
+ vs_fill_borders_RGB555 (&dest[0], black);
+ switch (method) {
+ case GST_VIDEO_SCALE_NEAREST:
+ vs_image_scale_nearest_RGB555 (&dest[0], &src[0],
+ videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_BILINEAR:
+ vs_image_scale_linear_RGB555 (&dest[0], &src[0], videoscale->tmp_buf);
+ break;
+ case GST_VIDEO_SCALE_4TAP:
+ vs_image_scale_4tap_RGB555 (&dest[0], &src[0], videoscale->tmp_buf);
break;
default:
- /* FIXME: update gst_video_scale_transform_caps once RGB and/or
- * other YUV formats work too */
- goto unsupported;
+ goto unknown_mode;
}
break;
default:
- goto unknown_mode;
+ goto unsupported;
}
GST_LOG_OBJECT (videoscale, "pushing buffer of %d bytes",
- GST_BUFFER_SIZE (out));
+ gst_buffer_get_size (out));
+
+done:
+ gst_video_frame_unmap (&out_frame);
+ gst_video_frame_unmap (&in_frame);
return ret;
unsupported:
{
GST_ELEMENT_ERROR (videoscale, STREAM, NOT_IMPLEMENTED, (NULL),
- ("Unsupported format %d for scaling method %d",
- videoscale->format, method));
- return GST_FLOW_ERROR;
+ ("Unsupported format %d for scaling method %d", format, method));
+ ret = GST_FLOW_ERROR;
+ goto done;
}
unknown_mode:
{
GST_ELEMENT_ERROR (videoscale, STREAM, NOT_IMPLEMENTED, (NULL),
("Unknown scaling method %d", videoscale->method));
- return GST_FLOW_ERROR;
+ ret = GST_FLOW_ERROR;
+ goto done;
}
}
static gboolean
gst_video_scale_src_event (GstBaseTransform * trans, GstEvent * event)
{
- GstVideoScale *videoscale;
+ GstVideoScale *videoscale = GST_VIDEO_SCALE (trans);
gboolean ret;
- double a;
+ gdouble a;
GstStructure *structure;
- videoscale = GST_VIDEO_SCALE (trans);
-
GST_DEBUG_OBJECT (videoscale, "handling %s event",
GST_EVENT_TYPE_NAME (event));
structure = (GstStructure *) gst_event_get_structure (event);
if (gst_structure_get_double (structure, "pointer_x", &a)) {
gst_structure_set (structure, "pointer_x", G_TYPE_DOUBLE,
- a * videoscale->from_width / videoscale->to_width, NULL);
+ a * videoscale->from_info.width / videoscale->to_info.width, NULL);
}
if (gst_structure_get_double (structure, "pointer_y", &a)) {
gst_structure_set (structure, "pointer_y", G_TYPE_DOUBLE,
- a * videoscale->from_height / videoscale->to_height, NULL);
+ a * videoscale->from_info.height / videoscale->to_info.height,
+ NULL);
}
break;
- case GST_EVENT_QOS:
- break;
default:
break;
}
static gboolean
plugin_init (GstPlugin * plugin)
{
- oil_init ();
+ gst_videoscale_orc_init ();
if (!gst_element_register (plugin, "videoscale", GST_RANK_NONE,
GST_TYPE_VIDEO_SCALE))
projects / platform / upstream / gstreamer.git / blobdiff