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/*
* Copyright (C) 2000-2002 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*
* $Id: invert.c,v 1.1 2002/12/01 14:52:55 mroi Exp $
*/
/*
* simple video inverter plugin
*/
#include "xine_internal.h"
#include "post.h"
/* plugin class initialization function */
static void *invert_init_plugin(xine_t *xine, void *);
/* plugin catalog information */
plugin_info_t xine_plugin_info[] = {
/* type, API, "name", version, special_info, init_function */
{ PLUGIN_POST, 1, "invert", XINE_VERSION_CODE, NULL, &invert_init_plugin },
{ PLUGIN_NONE, 0, "", 0, NULL, NULL }
};
/* plugin class functions */
static post_plugin_t *invert_open_plugin(post_class_t *class_gen, int inputs,
xine_audio_port_t **audio_target,
xine_video_port_t **video_target);
static char *invert_get_identifier(post_class_t *class_gen);
static char *invert_get_description(post_class_t *class_gen);
static void invert_class_dispose(post_class_t *class_gen);
/* plugin instance functions */
static void invert_dispose(post_plugin_t *this_gen);
/* rewire function */
static int invert_rewire(xine_post_out_t *output, void *data);
/* replaced video_port functions */
static vo_frame_t *invert_get_frame(xine_video_port_t *port_gen, uint32_t width,
uint32_t height, int ratio_code,
int format, int flags);
/* replaced vo_frame functions */
static int invert_draw(vo_frame_t *frame, xine_stream_t *stream);
static void *invert_init_plugin(xine_t *xine, void *data)
{
post_class_t *class = (post_class_t *)malloc(sizeof(post_class_t));
if (!class)
return NULL;
class->open_plugin = invert_open_plugin;
class->get_identifier = invert_get_identifier;
class->get_description = invert_get_description;
class->dispose = invert_class_dispose;
return class;
}
static post_plugin_t *invert_open_plugin(post_class_t *class_gen, int inputs,
xine_audio_port_t **audio_target,
xine_video_port_t **video_target)
{
post_plugin_t *this = (post_plugin_t *)malloc(sizeof(post_plugin_t));
xine_post_in_t *input = (xine_post_in_t *)malloc(sizeof(xine_post_in_t));
xine_post_out_t *output = (xine_post_out_t *)malloc(sizeof(xine_post_out_t));
post_video_port_t *port;
if (!this || !input || !output || !video_target || !video_target[0]) {
free(this);
free(input);
free(output);
return NULL;
}
port = post_intercept_video_port(video_target[0]);
/* replace with our own get_frame function */
port->port.get_frame = invert_get_frame;
input->name = "video";
input->type = XINE_POST_DATA_VIDEO;
input->data = (xine_video_port_t *)&port->port;
output->name = "inverted video";
output->type = XINE_POST_DATA_VIDEO;
output->data = (xine_video_port_t **)&port->original_port;
output->rewire = invert_rewire;
this->xine_post.audio_input = (xine_audio_port_t **)malloc(sizeof(xine_audio_port_t *));
this->xine_post.audio_input[0] = NULL;
this->xine_post.video_input = (xine_video_port_t **)malloc(sizeof(xine_video_port_t *) * 2);
this->xine_post.video_input[0] = &port->port;
this->xine_post.video_input[1] = NULL;
this->input = xine_list_new();
this->output = xine_list_new();
xine_list_append_content(this->input, input);
xine_list_append_content(this->output, output);
this->dispose = invert_dispose;
return this;
}
static char *invert_get_identifier(post_class_t *class_gen)
{
return "invert";
}
static char *invert_get_description(post_class_t *class_gen)
{
return "inverts the colours of every video frame";
}
static void invert_class_dispose(post_class_t *class_gen)
{
free(class_gen);
}
static void invert_dispose(post_plugin_t *this)
{
free(this->xine_post.audio_input);
free(this->xine_post.video_input);
free(xine_list_first_content(this->input));
free(xine_list_first_content(this->output));
xine_list_free(this->input);
xine_list_free(this->output);
free(this);
}
static int invert_rewire(xine_post_out_t *output, void *data)
{
if (!data)
return 0;
*(xine_video_port_t **)output->data = (xine_video_port_t *)data;
return 1;
}
static vo_frame_t *invert_get_frame(xine_video_port_t *port_gen, uint32_t width,
uint32_t height, int ratio_code,
int format, int flags)
{
post_video_port_t *port = (post_video_port_t *)port_gen;
vo_frame_t *frame;
frame = port->original_port->get_frame(port->original_port,
width, height, ratio_code, format, flags);
post_intercept_video_frame(frame, port);
/* replace with our own draw function */
frame->draw = invert_draw;
return frame;
}
static int invert_draw(vo_frame_t *frame, xine_stream_t *stream)
{
post_video_port_t *port = (post_video_port_t *)frame->port;
vo_frame_t *inverted_frame;
int size, i, skip;
inverted_frame = port->original_port->get_frame(port->original_port,
frame->width, frame->height, frame->ratio, frame->format, VO_BOTH_FIELDS);
inverted_frame->pts = frame->pts;
inverted_frame->duration = frame->duration;
switch (inverted_frame->format) {
case XINE_IMGFMT_YUY2:
size = inverted_frame->pitches[0] * inverted_frame->height;
for (i = 0; i < size; i++)
inverted_frame->base[0][i] = 0xff - frame->base[0][i];
break;
case XINE_IMGFMT_YV12:
/* Y */
size = inverted_frame->pitches[0] * inverted_frame->height;
for (i = 0; i < size; i++)
inverted_frame->base[0][i] = 0xff - frame->base[0][i];
/* U */
size = inverted_frame->pitches[1] * ((inverted_frame->height + 1) / 2);
for (i = 0; i < size; i++)
inverted_frame->base[1][i] = 0xff - frame->base[1][i];
/* U */
size = inverted_frame->pitches[2] * ((inverted_frame->height + 1) / 2);
for (i = 0; i < size; i++)
inverted_frame->base[2][i] = 0xff - frame->base[2][i];
break;
default:
printf("invert: cannot handle image format %i\n", frame->format);
inverted_frame->free(inverted_frame);
inverted_frame = frame;
}
post_restore_video_frame(frame, port);
skip = inverted_frame->draw(inverted_frame, stream);
if (frame != inverted_frame)
inverted_frame->free(inverted_frame);
frame->vpts = inverted_frame->vpts;
return skip;
}
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