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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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move code from videoflip directory. Why? I don't really know.
Original commit message from CVS: move code from videoflip directory. Why? I don't really know.
This commit is contained in:
David Schleef
parent
c6e986c8e4
commit
e22a782729
2 changed files with 202 additions and 20 deletions
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@ -20,15 +20,23 @@
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/*#define DEBUG_ENABLED */
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <gstvideoflip.h>
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#include <stdlib.h>
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#include <math.h>
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#include <string.h>
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/* elementfactory information */
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static GstElementDetails videoflip_details = {
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"Video Filter Template",
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"Video flipper",
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"Filter/Video",
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"LGPL",
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"Template for a video filter",
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"Flips and rotates video",
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VERSION,
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"David Schleef <ds@schleef.org>",
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"(C) 2003",
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@ -42,6 +50,7 @@ enum {
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enum {
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ARG_0,
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ARG_METHOD,
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/* FILL ME */
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};
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@ -58,6 +67,30 @@ static GstVideoflipClass *this_class = NULL;
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static GstVideofilterClass *parent_class = NULL;
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static GstElementClass *element_class = NULL;
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#define GST_TYPE_VIDEOFLIP_METHOD (gst_videoflip_method_get_type())
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static GType
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gst_videoflip_method_get_type(void)
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{
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static GType videoflip_method_type = 0;
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static GEnumValue videoflip_methods[] = {
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{ GST_VIDEOFLIP_METHOD_IDENTITY, "0", "Identity (no rotation)" },
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{ GST_VIDEOFLIP_METHOD_90R, "1", "Rotate clockwise 90 degrees" },
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{ GST_VIDEOFLIP_METHOD_180, "2", "Rotate 180 degrees" },
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{ GST_VIDEOFLIP_METHOD_90L, "3", "Rotate counter-clockwise 90 degrees" },
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{ GST_VIDEOFLIP_METHOD_HORIZ, "4", "Flip horizontally" },
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{ GST_VIDEOFLIP_METHOD_VERT, "5", "Flip vertically" },
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{ GST_VIDEOFLIP_METHOD_TRANS, "6", "Flip across upper left/lower right diagonal" },
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{ GST_VIDEOFLIP_METHOD_OTHER, "7", "Flip across upper right/lower left diagonal" },
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{ 0, NULL, NULL },
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};
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if(!videoflip_method_type){
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videoflip_method_type = g_enum_register_static("GstVideoflipMethod",
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videoflip_methods);
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}
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return videoflip_method_type;
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}
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GType
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gst_videoflip_get_type (void)
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{
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@ -80,7 +113,10 @@ gst_videoflip_get_type (void)
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}
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static GstVideofilterFormat gst_videoflip_formats[] = {
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/* planar */
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{ "YV12", 12, gst_videoflip_planar411, },
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{ "I420", 12, gst_videoflip_planar411, },
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{ "IYUV", 12, gst_videoflip_planar411, },
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};
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static void
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@ -95,12 +131,10 @@ gst_videoflip_class_init (GstVideoflipClass *klass)
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gstelement_class = (GstElementClass*)klass;
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gstvideofilter_class = (GstVideofilterClass *)klass;
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#if 0
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g_object_class_install_property(G_OBJECT_CLASS(klass), ARG_METHOD,
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g_param_spec_enum("method","method","method",
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GST_TYPE_VIDEOFLIP_METHOD, GST_VIDEOFLIP_METHOD_90R,
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G_PARAM_READWRITE));
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#endif
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this_class = klass;
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parent_class = g_type_class_ref(GST_TYPE_VIDEOFILTER);
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@ -164,7 +198,7 @@ gst_videoflip_init (GstVideoflip *videoflip)
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{
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GstVideofilter *videofilter;
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GST_DEBUG("gst_videoflip_init");
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GST_DEBUG ("gst_videoflip_init");
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videofilter = GST_VIDEOFILTER(videoflip);
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@ -182,19 +216,19 @@ gst_videoflip_init (GstVideoflip *videoflip)
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static void
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gst_videoflip_set_property (GObject *object, guint prop_id, const GValue *value, GParamSpec *pspec)
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{
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GstVideoflip *src;
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GstVideoflip *videoflip;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOFLIP(object));
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src = GST_VIDEOFLIP(object);
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videoflip = GST_VIDEOFLIP(object);
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GST_DEBUG("gst_videoflip_set_property");
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GST_DEBUG ("gst_videoflip_set_property");
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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src->method = g_value_get_enum (value);
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videoflip->method = g_value_get_enum (value);
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/* FIXME is this ok? (threading issues) */
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gst_videoflip_setup(GST_VIDEOFILTER(videoflip));
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break;
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#endif
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default:
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break;
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}
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@ -203,18 +237,16 @@ gst_videoflip_set_property (GObject *object, guint prop_id, const GValue *value,
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static void
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gst_videoflip_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec *pspec)
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{
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GstVideoflip *src;
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GstVideoflip *videoflip;
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/* it's not null if we got it, but it might not be ours */
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g_return_if_fail(GST_IS_VIDEOFLIP(object));
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src = GST_VIDEOFLIP(object);
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videoflip = GST_VIDEOFLIP(object);
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switch (prop_id) {
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#if 0
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case ARG_METHOD:
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g_value_set_enum (value, src->method);
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g_value_set_enum (value, videoflip->method);
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break;
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#endif
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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@ -248,25 +280,162 @@ GstPluginDesc plugin_desc = {
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plugin_init
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};
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static void gst_videoflip_setup(GstVideofilter *videofilter)
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static void gst_videoflip_flip(GstVideoflip *videoflip, unsigned char *dest,
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unsigned char *src, int sw, int sh, int dw, int dh);
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static void gst_videoflip_setup (GstVideofilter *videofilter)
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{
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int from_width, from_height;
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GstVideoflip *videoflip;
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g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
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GST_DEBUG("gst_videoflip_setup");
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videoflip = GST_VIDEOFLIP(videofilter);
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/* if any setup needs to be done, do it here */
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from_width = gst_videofilter_get_input_width(videofilter);
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from_height = gst_videofilter_get_input_height(videofilter);
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if(from_width==0 || from_height==0){
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return;
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}
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switch(videoflip->method){
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case GST_VIDEOFLIP_METHOD_90R:
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case GST_VIDEOFLIP_METHOD_90L:
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case GST_VIDEOFLIP_METHOD_TRANS:
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case GST_VIDEOFLIP_METHOD_OTHER:
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gst_videofilter_set_output_size(videofilter, from_height, from_width);
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break;
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case GST_VIDEOFLIP_METHOD_IDENTITY:
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case GST_VIDEOFLIP_METHOD_180:
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case GST_VIDEOFLIP_METHOD_HORIZ:
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case GST_VIDEOFLIP_METHOD_VERT:
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gst_videofilter_set_output_size(videofilter, from_width, from_height);
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break;
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default:
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g_assert_not_reached();
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break;
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}
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GST_DEBUG ("format=%p \"%s\" from %dx%d to %dx%d",
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videofilter->format, videofilter->format->fourcc,
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from_width, from_height,
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videofilter->to_width, videofilter->to_height);
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if(videoflip->method == GST_VIDEOFLIP_METHOD_IDENTITY){
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GST_DEBUG ("videoflip: using passthru");
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videofilter->passthru = TRUE;
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}else{
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videofilter->passthru = FALSE;
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}
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videofilter->from_buf_size = (videofilter->from_width * videofilter->from_height
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* videofilter->format->depth) / 8;
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videofilter->to_buf_size = (videofilter->to_width * videofilter->to_height
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* videofilter->format->depth) / 8;
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videofilter->inited = TRUE;
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}
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static void gst_videoflip_planar411(GstVideofilter *videofilter,
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void *dest, void *src)
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{
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GstVideoflip *videoflip;
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int sw;
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int sh;
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int dw;
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int dh;
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g_return_if_fail(GST_IS_VIDEOFLIP(videofilter));
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videoflip = GST_VIDEOFLIP(videofilter);
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/* do something interesting here */
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sw = videofilter->from_width;
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sh = videofilter->from_height;
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dw = videofilter->to_width;
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dh = videofilter->to_height;
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GST_DEBUG ("videoflip: scaling planar 4:1:1 %dx%d to %dx%d", sw, sh, dw, dh);
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gst_videoflip_flip(videoflip, dest, src, sw, sh, dw, dh);
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src += sw*sh;
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dest += dw*dh;
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dh = dh>>1;
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dw = dw>>1;
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sh = sh>>1;
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sw = sw>>1;
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gst_videoflip_flip(videoflip, dest, src, sw, sh, dw, dh);
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src += sw*sh;
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dest += dw*dh;
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gst_videoflip_flip(videoflip, dest, src, sw, sh, dw, dh);
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}
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static void
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gst_videoflip_flip(GstVideoflip *videoflip, unsigned char *dest,
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unsigned char *src, int sw, int sh, int dw, int dh)
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{
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int x,y;
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switch(videoflip->method){
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case GST_VIDEOFLIP_METHOD_90R:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[(sh - 1 - x)*sw + y];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_90L:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[x*sw + (sw - 1 - y)];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_180:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[(sh - 1 - y)*sw + (sw - 1 - x)];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_HORIZ:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[y*sw + (sw - 1 - x)];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_VERT:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[(sh - 1 - y)*sw + x];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_TRANS:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[x*sw + y];
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}
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}
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break;
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case GST_VIDEOFLIP_METHOD_OTHER:
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for(y=0;y<dh;y++){
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for(x=0;x<dw;x++){
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dest[y*dw + x] = src[(sh - 1 - x)*sw + (sw - 1 - y)];
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}
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}
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break;
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default:
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/* FIXME */
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break;
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}
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}
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@ -30,6 +30,18 @@
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G_BEGIN_DECLS
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typedef enum {
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GST_VIDEOFLIP_METHOD_IDENTITY,
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GST_VIDEOFLIP_METHOD_90R,
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GST_VIDEOFLIP_METHOD_180,
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GST_VIDEOFLIP_METHOD_90L,
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GST_VIDEOFLIP_METHOD_HORIZ,
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GST_VIDEOFLIP_METHOD_VERT,
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GST_VIDEOFLIP_METHOD_TRANS,
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GST_VIDEOFLIP_METHOD_OTHER,
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} GstVideoflipMethod;
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#define GST_TYPE_VIDEOFLIP \
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(gst_videoflip_get_type())
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#define GST_VIDEOFLIP(obj) \
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@ -47,6 +59,7 @@ typedef struct _GstVideoflipClass GstVideoflipClass;
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struct _GstVideoflip {
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GstVideofilter videofilter;
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GstVideoflipMethod method;
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};
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struct _GstVideoflipClass {
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