mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-24 10:41:04 +00:00
[596/906] colorscale: port over to filter base class
This commit is contained in:
Matthew Waters
parent
30ec55853e
commit
5d10051e03
2 changed files with 23 additions and 672 deletions
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@ -53,22 +53,6 @@
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#define GST_CAT_DEFAULT gst_gl_colorscale_debug
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#define GST_CAT_DEFAULT gst_gl_colorscale_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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/* Source pad definition */
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static GstStaticPadTemplate gst_gl_colorscale_src_pad_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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/* Source pad definition */
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static GstStaticPadTemplate gst_gl_colorscale_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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/* Properties */
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/* Properties */
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enum
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enum
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{
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{
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@ -79,36 +63,28 @@ enum
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GST_DEBUG_CATEGORY_INIT (gst_gl_colorscale_debug, "glcolorscale", 0, "glcolorscale element");
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GST_DEBUG_CATEGORY_INIT (gst_gl_colorscale_debug, "glcolorscale", 0, "glcolorscale element");
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G_DEFINE_TYPE_WITH_CODE (GstGLColorscale, gst_gl_colorscale,
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G_DEFINE_TYPE_WITH_CODE (GstGLColorscale, gst_gl_colorscale,
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GST_TYPE_BASE_TRANSFORM, DEBUG_INIT);
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GST_TYPE_GL_FILTER, DEBUG_INIT);
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static void gst_gl_colorscale_set_property (GObject * object, guint prop_id,
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static void gst_gl_colorscale_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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const GValue * value, GParamSpec * pspec);
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static void gst_gl_colorscale_get_property (GObject * object, guint prop_id,
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static void gst_gl_colorscale_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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GValue * value, GParamSpec * pspec);
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static void gst_gl_colorscale_reset (GstGLColorscale * colorscale);
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static gboolean gst_gl_colorscale_filter_texture (GstGLFilter * filter,
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static gboolean gst_gl_colorscale_set_caps (GstBaseTransform * bt,
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guint in_tex, guint out_tex);
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GstCaps * incaps, GstCaps * outcaps);
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static void gst_gl_colorscale_callback (gint width, gint height,
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static GstCaps *gst_gl_colorscale_transform_caps (GstBaseTransform * bt,
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guint texture, gpointer stuff);
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GstPadDirection direction, GstCaps * caps, GstCaps * filter);
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static GstCaps *gst_gl_colorscale_fixate_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
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static gboolean gst_gl_colorscale_start (GstBaseTransform * bt);
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static gboolean gst_gl_colorscale_stop (GstBaseTransform * bt);
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static GstFlowReturn gst_gl_colorscale_transform (GstBaseTransform * trans,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static gboolean gst_gl_colorscale_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, gsize * size);
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static void
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static void
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gst_gl_colorscale_class_init (GstGLColorscaleClass * klass)
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gst_gl_colorscale_class_init (GstGLColorscaleClass * klass)
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{
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{
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GObjectClass *gobject_class;
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GObjectClass *gobject_class;
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GstElementClass *element_class;
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GstElementClass *element_class;
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GstGLFilterClass *filter_class;
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gobject_class = (GObjectClass *) klass;
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gobject_class = (GObjectClass *) klass;
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element_class = GST_ELEMENT_CLASS (klass);
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element_class = GST_ELEMENT_CLASS (klass);
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filter_class = GST_GL_FILTER_CLASS (klass);
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gobject_class->set_property = gst_gl_colorscale_set_property;
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gobject_class->set_property = gst_gl_colorscale_set_property;
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gobject_class->get_property = gst_gl_colorscale_get_property;
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gobject_class->get_property = gst_gl_colorscale_get_property;
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@ -117,34 +93,18 @@ gst_gl_colorscale_class_init (GstGLColorscaleClass * klass)
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"Filter/Effect", "Colorspace converter and video scaler",
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"Filter/Effect", "Colorspace converter and video scaler",
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"Julien Isorce <julien.isorce@gmail.com>");
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"Julien Isorce <julien.isorce@gmail.com>");
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gst_element_class_add_pad_template (element_class,
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filter_class->filter_texture = gst_gl_colorscale_filter_texture;
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gst_static_pad_template_get (&gst_gl_colorscale_src_pad_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_gl_colorscale_sink_pad_template));
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GST_BASE_TRANSFORM_CLASS (klass)->transform_caps =
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gst_gl_colorscale_transform_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->fixate_caps = gst_gl_colorscale_fixate_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->transform = gst_gl_colorscale_transform;
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GST_BASE_TRANSFORM_CLASS (klass)->start = gst_gl_colorscale_start;
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GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_colorscale_stop;
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_colorscale_set_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size =
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gst_gl_colorscale_get_unit_size;
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}
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}
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static void
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static void
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gst_gl_colorscale_init (GstGLColorscale * colorscale)
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gst_gl_colorscale_init (GstGLColorscale * colorscale)
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{
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{
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gst_gl_colorscale_reset (colorscale);
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}
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}
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static void
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static void
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gst_gl_colorscale_set_property (GObject * object, guint prop_id,
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gst_gl_colorscale_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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const GValue * value, GParamSpec * pspec)
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{
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{
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//GstGLColorscale* colorscale = GST_GL_COLORSCALE (object);
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switch (prop_id) {
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switch (prop_id) {
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default:
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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@ -156,8 +116,6 @@ static void
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gst_gl_colorscale_get_property (GObject * object, guint prop_id,
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gst_gl_colorscale_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec)
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GValue * value, GParamSpec * pspec)
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{
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{
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//GstGLColorscale *colorscale = GST_GL_COLORSCALE (object);
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switch (prop_id) {
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switch (prop_id) {
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default:
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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@ -165,621 +123,28 @@ gst_gl_colorscale_get_property (GObject * object, guint prop_id,
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}
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}
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}
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}
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static void
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gst_gl_colorscale_reset (GstGLColorscale * colorscale)
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{
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if (colorscale->display) {
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g_object_unref (colorscale->display);
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colorscale->display = NULL;
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}
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}
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static gboolean
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static gboolean
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gst_gl_colorscale_start (GstBaseTransform * bt)
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gst_gl_colorscale_filter_texture (GstGLFilter * filter, guint in_tex,
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{
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guint out_tex)
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//GstGLColorscale* colorscale = GST_GL_COLORSCALE (bt);
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return TRUE;
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}
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static gboolean
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gst_gl_colorscale_stop (GstBaseTransform * bt)
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{
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GstGLColorscale *colorscale = GST_GL_COLORSCALE (bt);
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gst_gl_colorscale_reset (colorscale);
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return TRUE;
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}
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static GstCaps *
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gst_gl_colorscale_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps, GstCaps * filter)
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{
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//GstGLColorscale* colorscale = GST_GL_COLORSCALE (bt);
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GstStructure *structure;
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GstCaps *newcaps;
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const GValue *framerate_value;
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const GValue *par_value;
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GST_DEBUG ("transform caps %" GST_PTR_FORMAT, caps);
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structure = gst_caps_get_structure (caps, 0);
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newcaps = gst_caps_new_empty_simple ("video/x-raw");
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framerate_value = gst_structure_get_value (structure, "framerate");
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par_value = gst_structure_get_value (structure, "pixel-aspect-ratio");
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structure = gst_structure_copy (gst_caps_get_structure (newcaps, 0));
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gst_structure_set (structure,
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"width", GST_TYPE_INT_RANGE, 1, G_MAXINT,
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"height", GST_TYPE_INT_RANGE, 1, G_MAXINT, NULL);
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gst_structure_set_value (structure, "framerate", framerate_value);
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if (par_value)
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gst_structure_set_value (structure, "pixel-aspect-ratio", par_value);
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else
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gst_structure_set (structure, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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1, 1, NULL);
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newcaps = gst_caps_merge_structure (newcaps, gst_structure_copy (structure));
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GST_DEBUG ("new caps %" GST_PTR_FORMAT, newcaps);
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return newcaps;
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}
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/* from gst-plugins-base "videoscale" code */
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static GstCaps *
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gst_gl_colorscale_fixate_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps)
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{
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GstStructure *ins, *outs;
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const GValue *from_par, *to_par;
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GValue fpar = { 0, }, tpar = {
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0,};
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othercaps = gst_caps_truncate (othercaps);
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othercaps = gst_caps_make_writable (othercaps);
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GST_DEBUG_OBJECT (base, "trying to fixate othercaps %" GST_PTR_FORMAT
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" based on caps %" GST_PTR_FORMAT, othercaps, caps);
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ins = gst_caps_get_structure (caps, 0);
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outs = gst_caps_get_structure (othercaps, 0);
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from_par = gst_structure_get_value (ins, "pixel-aspect-ratio");
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to_par = gst_structure_get_value (outs, "pixel-aspect-ratio");
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/* If we're fixating from the sinkpad we always set the PAR and
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* assume that missing PAR on the sinkpad means 1/1 and
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* missing PAR on the srcpad means undefined
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*/
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if (direction == GST_PAD_SINK) {
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if (!from_par) {
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g_value_init (&fpar, GST_TYPE_FRACTION);
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gst_value_set_fraction (&fpar, 1, 1);
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from_par = &fpar;
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}
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if (!to_par) {
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g_value_init (&tpar, GST_TYPE_FRACTION_RANGE);
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gst_value_set_fraction_range_full (&tpar, 1, G_MAXINT, G_MAXINT, 1);
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to_par = &tpar;
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}
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} else {
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if (!to_par) {
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g_value_init (&tpar, GST_TYPE_FRACTION);
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gst_value_set_fraction (&tpar, 1, 1);
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to_par = &tpar;
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION, 1, 1,
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NULL);
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}
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if (!from_par) {
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g_value_init (&fpar, GST_TYPE_FRACTION);
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gst_value_set_fraction (&fpar, 1, 1);
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from_par = &fpar;
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}
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}
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/* we have both PAR but they might not be fixated */
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{
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gint from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d;
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gint w = 0, h = 0;
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gint from_dar_n, from_dar_d;
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gint num, den;
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/* from_par should be fixed */
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g_return_val_if_fail (gst_value_is_fixed (from_par), othercaps);
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from_par_n = gst_value_get_fraction_numerator (from_par);
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from_par_d = gst_value_get_fraction_denominator (from_par);
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gst_structure_get_int (ins, "width", &from_w);
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gst_structure_get_int (ins, "height", &from_h);
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gst_structure_get_int (outs, "width", &w);
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gst_structure_get_int (outs, "height", &h);
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/* if both width and height are already fixed, we can't do anything
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* about it anymore */
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if (w && h) {
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guint n, d;
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GST_DEBUG_OBJECT (base, "dimensions already set to %dx%d, not fixating",
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w, h);
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if (!gst_value_is_fixed (to_par)) {
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if (gst_video_calculate_display_ratio (&n, &d, from_w, from_h,
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from_par_n, from_par_d, w, h)) {
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GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", n, d);
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if (gst_structure_has_field (outs, "pixel-aspect-ratio"))
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gst_structure_fixate_field_nearest_fraction (outs,
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"pixel-aspect-ratio", n, d);
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else if (n != d)
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gst_structure_set (outs, "pixel-aspect-ratio", GST_TYPE_FRACTION,
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n, d, NULL);
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}
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}
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goto done;
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}
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/* Calculate input DAR */
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if (!gst_util_fraction_multiply (from_w, from_h, from_par_n, from_par_d,
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&from_dar_n, &from_dar_d)) {
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GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
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("Error calculating the output scaled size - integer overflow"));
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goto done;
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}
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GST_DEBUG_OBJECT (base, "Input DAR is %d/%d", from_dar_n, from_dar_d);
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/* If either width or height are fixed there's not much we
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* can do either except choosing a height or width and PAR
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* that matches the DAR as good as possible
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*/
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if (h) {
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GstStructure *tmp;
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gint set_w, set_par_n, set_par_d;
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GST_DEBUG_OBJECT (base, "height is fixed (%d)", h);
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/* If the PAR is fixed too, there's not much to do
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* except choosing the width that is nearest to the
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* width with the same DAR */
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if (gst_value_is_fixed (to_par)) {
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to_par_n = gst_value_get_fraction_numerator (to_par);
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to_par_d = gst_value_get_fraction_denominator (to_par);
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GST_DEBUG_OBJECT (base, "PAR is fixed %d/%d", to_par_n, to_par_d);
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, to_par_d,
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to_par_n, &num, &den)) {
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GST_ELEMENT_ERROR (base, CORE, NEGOTIATION, (NULL),
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("Error calculating the output scaled size - integer overflow"));
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goto done;
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}
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w = (guint) gst_util_uint64_scale_int (h, num, den);
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gst_structure_fixate_field_nearest_int (outs, "width", w);
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goto done;
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}
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|
||||||
/* 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) {
|
|
||||||
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 {
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
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;
|
|
||||||
}
|
|
||||||
|
|
||||||
/* 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;
|
|
||||||
}
|
|
||||||
|
|
||||||
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);
|
|
||||||
|
|
||||||
return othercaps;
|
|
||||||
}
|
|
||||||
|
|
||||||
static gboolean
|
|
||||||
gst_gl_colorscale_set_caps (GstBaseTransform * bt, GstCaps * incaps,
|
|
||||||
GstCaps * outcaps)
|
|
||||||
{
|
{
|
||||||
GstGLColorscale *colorscale;
|
GstGLColorscale *colorscale;
|
||||||
GstVideoInfo in_vinfo, out_vinfo;
|
|
||||||
gboolean ret;
|
|
||||||
|
|
||||||
GST_DEBUG ("called with %" GST_PTR_FORMAT, incaps);
|
colorscale = GST_GL_COLORSCALE (filter);
|
||||||
|
|
||||||
ret = FALSE;
|
gst_gl_filter_render_to_target (filter, TRUE, in_tex, out_tex,
|
||||||
colorscale = GST_GL_COLORSCALE (bt);
|
gst_gl_colorscale_callback, colorscale);
|
||||||
|
|
||||||
ret = gst_video_info_from_caps (&out_vinfo, outcaps);
|
|
||||||
ret |= gst_video_info_from_caps (&in_vinfo, incaps);
|
|
||||||
|
|
||||||
if (!ret) {
|
|
||||||
GST_DEBUG ("bad caps");
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
|
|
||||||
colorscale->output_video_format = GST_VIDEO_INFO_FORMAT (&out_vinfo);
|
|
||||||
colorscale->output_video_width = GST_VIDEO_INFO_WIDTH (&out_vinfo);
|
|
||||||
colorscale->output_video_height = GST_VIDEO_INFO_HEIGHT (&out_vinfo);
|
|
||||||
|
|
||||||
colorscale->input_video_format = GST_VIDEO_INFO_FORMAT (&in_vinfo);
|
|
||||||
colorscale->input_video_width = GST_VIDEO_INFO_WIDTH (&in_vinfo);
|
|
||||||
colorscale->input_video_height = GST_VIDEO_INFO_HEIGHT (&in_vinfo);
|
|
||||||
|
|
||||||
colorscale->display = gst_gl_display_new ();
|
|
||||||
|
|
||||||
//init unvisible opengl context
|
|
||||||
ret = gst_gl_display_create_context (colorscale->display, 0);
|
|
||||||
|
|
||||||
if (!ret) {
|
|
||||||
GST_ELEMENT_ERROR (colorscale, RESOURCE, NOT_FOUND,
|
|
||||||
GST_GL_DISPLAY_ERR_MSG (colorscale->display), (NULL));
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
//blocking call, init colorspace conversion if needed
|
|
||||||
ret = gst_gl_display_init_upload (colorscale->display,
|
|
||||||
colorscale->input_video_format, colorscale->output_video_width,
|
|
||||||
colorscale->output_video_height, colorscale->input_video_width,
|
|
||||||
colorscale->input_video_height);
|
|
||||||
|
|
||||||
if (!ret) {
|
|
||||||
GST_ELEMENT_ERROR (colorscale, RESOURCE, NOT_FOUND,
|
|
||||||
GST_GL_DISPLAY_ERR_MSG (colorscale->display), (NULL));
|
|
||||||
return FALSE;
|
|
||||||
}
|
|
||||||
//blocking call, init colorspace conversion if needed
|
|
||||||
ret = gst_gl_display_init_download (colorscale->display,
|
|
||||||
colorscale->output_video_format, colorscale->output_video_width,
|
|
||||||
colorscale->output_video_height);
|
|
||||||
|
|
||||||
if (!ret)
|
|
||||||
GST_ELEMENT_ERROR (colorscale, RESOURCE, NOT_FOUND,
|
|
||||||
GST_GL_DISPLAY_ERR_MSG (colorscale->display), (NULL));
|
|
||||||
|
|
||||||
return ret;
|
|
||||||
}
|
|
||||||
|
|
||||||
static gboolean
|
|
||||||
gst_gl_colorscale_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
|
|
||||||
gsize * size)
|
|
||||||
{
|
|
||||||
GstVideoInfo vinfo;
|
|
||||||
|
|
||||||
if (gst_video_info_from_caps (&vinfo, caps)) {
|
|
||||||
*size = GST_VIDEO_INFO_SIZE (&vinfo);
|
|
||||||
}
|
|
||||||
|
|
||||||
return TRUE;
|
return TRUE;
|
||||||
}
|
}
|
||||||
|
|
||||||
static GstFlowReturn
|
static void
|
||||||
gst_gl_colorscale_transform (GstBaseTransform * trans, GstBuffer * inbuf,
|
gst_gl_colorscale_callback (gint width, gint height, guint texture,
|
||||||
GstBuffer * outbuf)
|
gpointer stuff)
|
||||||
{
|
{
|
||||||
/*GstGLColorscale *colorscale; */
|
GstGLFilter *filter = GST_GL_FILTER (stuff);
|
||||||
gboolean ok;
|
|
||||||
|
|
||||||
/*colorscale = GST_GL_COLORSCALE (trans); */
|
glMatrixMode (GL_PROJECTION);
|
||||||
ok = TRUE;
|
glLoadIdentity ();
|
||||||
|
|
||||||
/* FIXME: implement using GstGLMeta */
|
gst_gl_filter_draw_texture (filter, texture, width, height);
|
||||||
/*//blocking call
|
|
||||||
GstGLBuffer *gl_temp_buffer = gst_gl_buffer_new (colorscale->display,
|
|
||||||
colorscale->output_video_width, colorscale->output_video_height);
|
|
||||||
|
|
||||||
GST_DEBUG ("input size %p size %d",
|
|
||||||
GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));
|
|
||||||
|
|
||||||
//blocking call
|
|
||||||
ok =
|
|
||||||
gst_gl_display_do_upload (colorscale->display, gl_temp_buffer->texture,
|
|
||||||
colorscale->input_video_width, colorscale->input_video_height,
|
|
||||||
GST_BUFFER_DATA (inbuf));
|
|
||||||
|
|
||||||
GST_DEBUG ("output size %p size %d",
|
|
||||||
GST_BUFFER_DATA (outbuf), GST_BUFFER_SIZE (outbuf));
|
|
||||||
|
|
||||||
//blocking call
|
|
||||||
ok &=
|
|
||||||
gst_gl_display_do_download (colorscale->display, gl_temp_buffer->texture,
|
|
||||||
gl_temp_buffer->width, gl_temp_buffer->height, GST_BUFFER_DATA (outbuf));
|
|
||||||
|
|
||||||
gst_buffer_unref (GST_BUFFER_CAST (gl_temp_buffer));
|
|
||||||
*/
|
|
||||||
|
|
||||||
if (ok)
|
|
||||||
return GST_FLOW_OK;
|
|
||||||
else
|
|
||||||
return GST_FLOW_EOS;
|
|
||||||
}
|
}
|
||||||
|
|
|
||||||
|
|
@ -22,10 +22,9 @@
|
||||||
#define _GST_GLCOLORSCALE_H_
|
#define _GST_GLCOLORSCALE_H_
|
||||||
|
|
||||||
#include <gst/gst.h>
|
#include <gst/gst.h>
|
||||||
#include <gst/base/gstbasetransform.h>
|
|
||||||
#include <gst/video/video.h>
|
#include <gst/video/video.h>
|
||||||
|
|
||||||
#include "gstglmeta.h"
|
#include "gstglfilter.h"
|
||||||
|
|
||||||
G_BEGIN_DECLS
|
G_BEGIN_DECLS
|
||||||
|
|
||||||
|
|
@ -42,25 +41,12 @@ typedef struct _GstGLColorscaleClass GstGLColorscaleClass;
|
||||||
|
|
||||||
struct _GstGLColorscale
|
struct _GstGLColorscale
|
||||||
{
|
{
|
||||||
GstBaseTransform base_transform;
|
GstGLFilter filter;
|
||||||
|
|
||||||
GstPad *srcpad;
|
|
||||||
GstPad *sinkpad;
|
|
||||||
|
|
||||||
GstGLDisplay *display;
|
|
||||||
|
|
||||||
GstVideoFormat input_video_format;
|
|
||||||
gint input_video_width;
|
|
||||||
gint input_video_height;
|
|
||||||
|
|
||||||
GstVideoFormat output_video_format;
|
|
||||||
gint output_video_width;
|
|
||||||
gint output_video_height;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
struct _GstGLColorscaleClass
|
struct _GstGLColorscaleClass
|
||||||
{
|
{
|
||||||
GstBaseTransformClass base_transform_class;
|
GstGLFilterClass filter_class;
|
||||||
};
|
};
|
||||||
|
|
||||||
GType gst_gl_colorscale_get_type (void);
|
GType gst_gl_colorscale_get_type (void);
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue