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/*
* filter_preview.c
*
* Copyright (C) Thomas Oestreich - December 2001
*
* This file is part of transcode, a video stream processing tool
*
* transcode 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, or (at your option)
* any later version.
*
* transcode 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#define MOD_NAME "filter_preview.so"
#define MOD_VERSION "v0.1.4 (2002-10-08)"
#define MOD_CAP "xv/sdl/gtk preview plugin"
#define MOD_AUTHOR "Thomas Oestreich"
#include "transcode.h"
#include "filter.h"
#include "libtc/optstr.h"
#include "filter_preview.h"
static char buffer[128];
static int size=0;
static int use_secondary_buffer=0;
static char *undo_buffer = NULL;
static int preview_delay=0;
/* global variables */
static dv_player_t *dv_player = NULL;
static dv_player_t *dv_player_new(void)
{
dv_player_t *result;
if(!(result = calloc(1,sizeof(dv_player_t)))) goto no_mem;
if(!(result->display = dv_display_new())) goto no_display;
return(result);
no_display:
free(result);
result = NULL;
no_mem:
return(result);
} // dv_player_new
/*-------------------------------------------------
*
* single function interface
*
*-------------------------------------------------*/
int tc_filter(frame_list_t *ptr_, char *options)
{
vframe_list_t *ptr = (vframe_list_t *)ptr_;
vob_t *vob=NULL;
int pre=0, vid=0;
if(ptr->tag & TC_FILTER_GET_CONFIG) {
optstr_filter_desc (options, MOD_NAME, MOD_CAP, MOD_VERSION, MOD_AUTHOR, "VRYO", "1");
}
//----------------------------------
//
// filter init
//
//----------------------------------
if(ptr->tag & TC_FILTER_INIT) {
int w, h;
if((vob = tc_get_vob())==NULL) return(-1);
// filter init ok.
if(verbose) tc_log_info(MOD_NAME, "%s %s", MOD_VERSION, MOD_CAP);
if(verbose) tc_log_info(MOD_NAME, "options=%s", options);
tc_snprintf(buffer, sizeof(buffer), "%s-%s", PACKAGE, VERSION);
if(dv_player != NULL) return(-1);
if(!(dv_player = dv_player_new())) return(-1);
//init filter
dv_player->display->arg_display=0;
if(options!=NULL) {
if(strcasecmp(options,"help")==0) return -1;
if(strcasecmp(options,"gtk")==0) dv_player->display->arg_display=1;
if(strcasecmp(options,"sdl")==0) dv_player->display->arg_display=3;
if(strcasecmp(options,"xv")==0) dv_player->display->arg_display=2;
}
w = vob->ex_v_width;
h = vob->ex_v_height;
if(verbose) tc_log_info(MOD_NAME, "preview window %dx%d", w, h);
switch(vob->im_v_codec) {
case CODEC_RGB:
if(!dv_display_init(dv_player->display, 0, NULL,
w, h, e_dv_color_rgb,
buffer, buffer)) return(-1);
size = w * h * 3;
break;
case CODEC_YUV:
if(!dv_display_init(dv_player->display, 0, NULL,
w, h, e_dv_sample_420,
buffer, buffer)) return(-1);
size = w*h* 3/2;
break;
case CODEC_RAW_YUV:
if(!dv_display_init(dv_player->display, 0, NULL,
w, h, e_dv_sample_420,
buffer, buffer)) return(-1);
size = w*h* 3/2;
use_secondary_buffer=1;
break;
default:
tc_log_error(MOD_NAME, "codec not supported for preview");
return(-1);
}
if ((undo_buffer = (char *) malloc (size)) == NULL) {
tc_log_error(MOD_NAME, "codec not supported for preview");
return (-1);
}
return(0);
}
//----------------------------------
//
// filter close
//
//----------------------------------
if(ptr->tag & TC_FILTER_CLOSE) {
if(size) dv_display_exit(dv_player->display);
return(0);
}
//----------------------------------
//
// filter frame routine
//
//----------------------------------
// tag variable indicates, if we are called before
// transcodes internal video/audo frame processing routines
// or after and determines video/audio context
if(verbose & TC_STATS) tc_log_info(MOD_NAME, "%s/%s %s %s", vob->mod_path, MOD_NAME, MOD_VERSION, MOD_CAP);
// tag variable indicates, if we are called before
// transcodes internal video/audo frame processing routines
// or after and determines video/audio context
pre = (ptr->tag & TC_PREVIEW)? 1:0;
vid = (ptr->tag & TC_VIDEO)? 1:0;
if(pre && vid) {
//0.6.2 (secondaray buffer for pass-through mode)
(use_secondary_buffer) ? ac_memcpy(dv_player->display->pixels[0], (char*) ptr->video_buf2, size) : ac_memcpy(dv_player->display->pixels[0], (char*) ptr->video_buf, size);
//display video frame
dv_display_show(dv_player->display);
//0.6.2
usleep(preview_delay);
}
return(0);
}
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