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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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[506/906] GstGLUpload: update for 1.0
This commit is contained in:
Matthew Waters
parent
620d330953
commit
42127be707
1 changed files with 445 additions and 189 deletions
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@ -82,35 +82,13 @@ GST_STATIC_PAD_TEMPLATE ("src",
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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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#ifndef OPENGL_ES2
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/* Sink pad definition */
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static GstStaticPadTemplate gst_gl_upload_sink_pad_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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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_VIDEO_CAPS_RGB ";"
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GST_VIDEO_CAPS_RGBx ";"
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GST_VIDEO_CAPS_RGBA ";"
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GST_VIDEO_CAPS_BGR ";"
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GST_VIDEO_CAPS_BGRx ";"
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GST_VIDEO_CAPS_BGRA ";"
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GST_VIDEO_CAPS_xRGB ";"
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GST_VIDEO_CAPS_xBGR ";"
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GST_VIDEO_CAPS_ARGB ";"
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GST_VIDEO_CAPS_ABGR ";"
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GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY, AYUV }"))
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GST_STATIC_CAPS (GST_GL_VIDEO_CAPS)
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);
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#else
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static GstStaticPadTemplate gst_gl_upload_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_VIDEO_CAPS_RGB ";"
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GST_VIDEO_CAPS_RGBx ";"
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GST_VIDEO_CAPS_RGBA ";"
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GST_VIDEO_CAPS_YUV ("{ I420, YV12, YUY2, UYVY, AYUV }"))
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);
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#endif
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/* Properties */
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enum
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@ -130,30 +108,24 @@ static void gst_gl_upload_set_property (GObject * object, guint prop_id,
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static void gst_gl_upload_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static gboolean gst_gl_upload_src_query (GstPad * pad, GstQuery * query);
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static gboolean gst_gl_upload_src_query (GstPad * pad, GstObject * object,
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GstQuery * query);
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static void gst_gl_upload_reset (GstGLUpload * upload);
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static gboolean gst_gl_upload_set_caps (GstBaseTransform * bt,
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GstCaps * incaps, GstCaps * outcaps);
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static GstCaps *gst_gl_upload_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps);
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static void gst_gl_upload_fixate_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * filter);
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static GstCaps *gst_gl_upload_fixate_caps (GstBaseTransform * base,
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GstPadDirection direction, GstCaps * caps, GstCaps * othercaps);
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static gboolean gst_gl_upload_start (GstBaseTransform * bt);
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static gboolean gst_gl_upload_stop (GstBaseTransform * bt);
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static GstFlowReturn gst_gl_upload_prepare_output_buffer (GstBaseTransform *
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trans, GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf);
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static GstFlowReturn gst_gl_upload_transform (GstBaseTransform * trans,
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GstBuffer * inbuf, GstBuffer * outbuf);
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static gboolean gst_gl_upload_get_unit_size (GstBaseTransform * trans,
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GstCaps * caps, guint * size);
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GstCaps * caps, gsize * size);
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static void
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gst_gl_upload_base_init (gpointer klass)
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{
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}
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static void
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gst_gl_upload_class_init (GstGLUploadClass * klass)
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{
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@ -174,8 +146,6 @@ gst_gl_upload_class_init (GstGLUploadClass * klass)
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GST_BASE_TRANSFORM_CLASS (klass)->stop = gst_gl_upload_stop;
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GST_BASE_TRANSFORM_CLASS (klass)->set_caps = gst_gl_upload_set_caps;
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GST_BASE_TRANSFORM_CLASS (klass)->get_unit_size = gst_gl_upload_get_unit_size;
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GST_BASE_TRANSFORM_CLASS (klass)->prepare_output_buffer =
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gst_gl_upload_prepare_output_buffer;
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g_object_class_install_property (gobject_class, PROP_EXTERNAL_OPENGL_CONTEXT,
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g_param_spec_ulong ("external-opengl-context",
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@ -236,29 +206,26 @@ gst_gl_upload_get_property (GObject * object, guint prop_id,
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}
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static gboolean
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gst_gl_upload_src_query (GstPad * pad, GstQuery * query)
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gst_gl_upload_src_query (GstPad * pad, GstObject * object, GstQuery * query)
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{
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gboolean res = FALSE;
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GstElement *parent = GST_ELEMENT (gst_pad_get_parent (pad));
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gboolean res;
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CUSTOM:
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{
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GstStructure *structure = gst_query_get_structure (query);
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const GstStructure *structure = gst_query_get_structure (query);
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res =
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g_strcmp0 (gst_element_get_name (parent),
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g_strcmp0 (gst_element_get_name (object),
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gst_structure_get_name (structure)) == 0;
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if (!res)
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res = gst_pad_query_default (pad, query);
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res = gst_pad_query_default (pad, object, query);
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break;
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}
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default:
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res = gst_pad_query_default (pad, query);
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res = gst_pad_query_default (pad, object, query);
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break;
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}
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gst_object_unref (parent);
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return res;
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}
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@ -287,8 +254,8 @@ gst_gl_upload_start (GstBaseTransform * bt)
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return FALSE;
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}
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structure = gst_structure_new (gst_element_get_name (upload), NULL);
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query = gst_query_new_application (GST_QUERY_CUSTOM, structure);
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structure = gst_structure_new_empty (gst_element_get_name (upload));
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query = gst_query_new_custom (GST_QUERY_CUSTOM, structure);
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isPerformed = gst_element_query (parent, query);
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@ -329,23 +296,18 @@ gst_gl_upload_stop (GstBaseTransform * bt)
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static GstCaps *
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gst_gl_upload_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps)
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GstPadDirection direction, GstCaps * caps, GstCaps * filter)
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{
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//GstGLUpload* upload = GST_GL_UPLOAD (bt);
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GstStructure *structure = gst_caps_get_structure (caps, 0);
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GstCaps *newcaps = NULL;
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const GValue *framerate_value = NULL;
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GstStructure *structure;
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GstCaps *newcaps;
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const GValue *framerate_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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framerate_value = gst_structure_get_value (structure, "framerate");
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if (direction == GST_PAD_SRC) {
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GstCaps *newothercaps = gst_caps_new_simple ("video/x-raw-rgb", NULL);
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newcaps = gst_caps_new_simple ("video/x-raw-yuv", NULL);
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gst_caps_append (newcaps, newothercaps);
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} else
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newcaps = gst_caps_new_simple ("video/x-raw-gl", NULL);
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newcaps = gst_caps_new_empty_simple ("video/x-raw");
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structure = gst_caps_get_structure (newcaps, 0);
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@ -355,7 +317,7 @@ gst_gl_upload_transform_caps (GstBaseTransform * bt,
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gst_structure_set_value (structure, "framerate", framerate_value);
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gst_caps_merge_structure (newcaps, gst_structure_copy (structure));
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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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@ -363,15 +325,17 @@ gst_gl_upload_transform_caps (GstBaseTransform * bt,
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}
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/* from gst-plugins-base "videoscale" code */
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static void
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static GstCaps *
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gst_gl_upload_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
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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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g_return_if_fail (gst_caps_is_fixed (caps));
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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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@ -382,130 +346,449 @@ gst_gl_upload_fixate_caps (GstBaseTransform * base, GstPadDirection direction,
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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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//we have both PAR but they might not be fixated
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if (from_par && to_par) {
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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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gint count = 0, w = 0, h = 0;
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guint num, den;
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//from_par should be fixed
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g_return_if_fail (gst_value_is_fixed (from_par));
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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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//fixate the out PAR
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if (!gst_value_is_fixed (to_par)) {
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GST_DEBUG_OBJECT (base, "fixating to_par to %dx%d", from_par_n,
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from_par_d);
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gst_structure_fixate_field_nearest_fraction (outs, "pixel-aspect-ratio",
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from_par_n, from_par_d);
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}
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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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//f both width and height are already fixed, we can't do anything
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//about it anymore
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if (gst_structure_get_int (outs, "width", &w))
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++count;
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if (gst_structure_get_int (outs, "height", &h))
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++count;
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if (count == 2) {
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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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return;
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}
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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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if (!gst_video_calculate_display_ratio (&num, &den, from_w, from_h,
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from_par_n, from_par_d, to_par_n, to_par_d)) {
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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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return;
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goto done;
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}
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GST_DEBUG_OBJECT (base,
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"scaling input with %dx%d and PAR %d/%d to output PAR %d/%d",
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from_w, from_h, from_par_n, from_par_d, to_par_n, to_par_d);
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GST_DEBUG_OBJECT (base, "resulting output should respect ratio of %d/%d",
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num, den);
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GST_DEBUG_OBJECT (base, "Input DAR is %d/%d", from_dar_n, from_dar_d);
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//now find a width x height that respects this display ratio.
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//prefer those that have one of w/h the same as the incoming video
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//using wd / hd = num / den
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//if one of the output width or height is fixed, we work from there
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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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GST_DEBUG_OBJECT (base, "height is fixed,scaling width");
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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
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* an arbitrary PAR. */
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/* Check if we can keep the input width */
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tmp = gst_structure_copy (outs);
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gst_structure_fixate_field_nearest_int (tmp, "width", from_w);
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gst_structure_get_int (tmp, "width", &set_w);
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/* Might have failed but try to keep the DAR nonetheless by
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* adjusting the PAR */
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if (!gst_util_fraction_multiply (from_dar_n, from_dar_d, h, set_w,
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&to_par_n, &to_par_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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gst_structure_free (tmp);
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goto done;
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}
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if (!gst_structure_has_field (tmp, "pixel-aspect-ratio"))
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gst_structure_set_value (tmp, "pixel-aspect-ratio", to_par);
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gst_structure_fixate_field_nearest_fraction (tmp, "pixel-aspect-ratio",
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to_par_n, to_par_d);
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gst_structure_get_fraction (tmp, "pixel-aspect-ratio", &set_par_n,
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&set_par_d);
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gst_structure_free (tmp);
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/* Check if the adjusted PAR is accepted */
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if (set_par_n == to_par_n && set_par_d == to_par_d) {
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if (gst_structure_has_field (outs, "pixel-aspect-ratio") ||
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set_par_n != set_par_d)
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gst_structure_set (outs, "width", G_TYPE_INT, set_w,
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"pixel-aspect-ratio", GST_TYPE_FRACTION, set_par_n, set_par_d,
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NULL);
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goto done;
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}
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/* Otherwise scale the width to the new PAR and check if the
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* 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");
|
||||
h = (guint) gst_util_uint64_scale_int (w, den, num);
|
||||
} 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;
|
||||
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);
|
||||
} else {
|
||||
GST_DEBUG_OBJECT (base, "approximating but keeping video height");
|
||||
h = from_h;
|
||||
w = (guint) gst_util_uint64_scale_int (h, num, den);
|
||||
}
|
||||
}
|
||||
GST_DEBUG_OBJECT (base, "scaling to %dx%d", w, h);
|
||||
gst_structure_fixate_field_nearest_int (outs, "height", 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_get_int (ins, "width", &width)) {
|
||||
if (gst_structure_has_field (outs, "width"))
|
||||
gst_structure_fixate_field_nearest_int (outs, "width", width);
|
||||
}
|
||||
if (gst_structure_get_int (ins, "height", &height)) {
|
||||
if (gst_structure_has_field (outs, "height")) {
|
||||
gst_structure_fixate_field_nearest_int (outs, "height", height);
|
||||
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_upload_set_caps (GstBaseTransform * bt, GstCaps * incaps,
|
||||
GstCaps * outcaps)
|
||||
{
|
||||
GstGLUpload *upload = GST_GL_UPLOAD (bt);
|
||||
gboolean ret = FALSE;
|
||||
GstVideoFormat video_format = GST_VIDEO_FORMAT_UNKNOWN;
|
||||
GstGLUpload *upload;
|
||||
gboolean ret;
|
||||
GstVideoInfo in_vinfo, out_vinfo;
|
||||
|
||||
GST_DEBUG ("called with %" GST_PTR_FORMAT, incaps);
|
||||
|
||||
ret = gst_video_format_parse_caps (outcaps, &video_format,
|
||||
&upload->gl_width, &upload->gl_height);
|
||||
upload = GST_GL_UPLOAD (bt);
|
||||
|
||||
ret |= gst_video_format_parse_caps (incaps, &upload->video_format,
|
||||
&upload->video_width, &upload->video_height);
|
||||
ret = gst_video_info_from_caps (&in_vinfo, incaps);
|
||||
ret |= gst_video_info_from_caps (&out_vinfo, outcaps);
|
||||
|
||||
if (!ret) {
|
||||
GST_DEBUG ("caps connot be parsed");
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
upload->video_format = GST_VIDEO_INFO_FORMAT (&in_vinfo);
|
||||
upload->video_width = GST_VIDEO_INFO_WIDTH (&in_vinfo);
|
||||
upload->video_height = GST_VIDEO_INFO_HEIGHT (&in_vinfo);
|
||||
|
||||
upload->gl_width = GST_VIDEO_INFO_WIDTH (&out_vinfo);
|
||||
upload->gl_height = GST_VIDEO_INFO_HEIGHT (&out_vinfo);
|
||||
|
||||
//init colorspace conversion if needed
|
||||
ret = gst_gl_display_init_upload (upload->display, upload->video_format,
|
||||
upload->gl_width, upload->gl_height,
|
||||
|
|
@ -520,55 +803,26 @@ gst_gl_upload_set_caps (GstBaseTransform * bt, GstCaps * incaps,
|
|||
|
||||
static gboolean
|
||||
gst_gl_upload_get_unit_size (GstBaseTransform * trans, GstCaps * caps,
|
||||
guint * size)
|
||||
gsize * size)
|
||||
{
|
||||
gboolean ret = FALSE;
|
||||
GstStructure *structure = NULL;
|
||||
gint width = 0;
|
||||
gint height = 0;
|
||||
gboolean ret;
|
||||
GstVideoInfo vinfo;
|
||||
|
||||
structure = gst_caps_get_structure (caps, 0);
|
||||
if (gst_structure_has_name (structure, "video/x-raw-gl")) {
|
||||
ret = gst_gl_buffer_parse_caps (caps, &width, &height);
|
||||
if (ret)
|
||||
*size = gst_gl_buffer_get_size (width, height);
|
||||
} else {
|
||||
GstVideoFormat video_format = GST_VIDEO_FORMAT_UNKNOWN;
|
||||
|
||||
ret = gst_video_format_parse_caps (caps, &video_format, &width, &height);
|
||||
if (ret)
|
||||
*size = gst_video_format_get_size (video_format, width, height);
|
||||
}
|
||||
ret = gst_video_info_from_caps (&vinfo, caps);
|
||||
if (ret)
|
||||
*size = GST_VIDEO_INFO_SIZE (&vinfo);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static GstFlowReturn
|
||||
gst_gl_upload_prepare_output_buffer (GstBaseTransform * trans,
|
||||
GstBuffer * input, gint size, GstCaps * caps, GstBuffer ** buf)
|
||||
{
|
||||
GstGLUpload *upload = GST_GL_UPLOAD (trans);
|
||||
|
||||
//blocking call, request a texture and attach it to the upload FBO
|
||||
GstGLBuffer *gl_outbuf = gst_gl_buffer_new (upload->display,
|
||||
upload->gl_width, upload->gl_height);
|
||||
|
||||
*buf = GST_BUFFER (gl_outbuf);
|
||||
gst_buffer_set_caps (*buf, caps);
|
||||
|
||||
if (gl_outbuf->texture)
|
||||
return GST_FLOW_OK;
|
||||
else
|
||||
return GST_FLOW_UNEXPECTED;
|
||||
}
|
||||
|
||||
|
||||
static GstFlowReturn
|
||||
gst_gl_upload_transform (GstBaseTransform * trans, GstBuffer * inbuf,
|
||||
GstBuffer * outbuf)
|
||||
{
|
||||
GstGLUpload *upload = GST_GL_UPLOAD (trans);
|
||||
GstGLBuffer *gl_outbuf = GST_GL_BUFFER (outbuf);
|
||||
/*GstGLUpload *upload = GST_GL_UPLOAD (trans); */
|
||||
|
||||
/*FIXME: implement using GstGLMeta */
|
||||
/* GstGLBuffer *gl_outbuf = GST_GL_BUFFER (outbuf);
|
||||
|
||||
GST_DEBUG ("Upload %p size %d",
|
||||
GST_BUFFER_DATA (inbuf), GST_BUFFER_SIZE (inbuf));
|
||||
|
|
@ -581,5 +835,7 @@ gst_gl_upload_transform (GstBaseTransform * trans, GstBuffer * inbuf,
|
|||
upload->video_width, upload->video_height, GST_BUFFER_DATA (inbuf)))
|
||||
return GST_FLOW_OK;
|
||||
else
|
||||
return GST_FLOW_UNEXPECTED;
|
||||
return GST_FLOW_EOS;
|
||||
*/
|
||||
return GST_FLOW_OK;
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue