pagevideos is now much better that before:
1. Display list of video files.
2. For each file in progress display progress bar.
3. Description for each file (size, duration etc).
4. It is possible to remove and rename files.
5. Video file can be launched in external media player.
6. ...
also fixed some bugs
http://postimage.org/image/hk87cuqm9/
(*
* Hedgewars, a free turn based strategy game
* Copyright (c) 2004-2012 Andrey Korotaev <unC0Rr@gmail.com>
*
* This program 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; version 2 of the License
*
* This program 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
*)
{$INCLUDE "options.inc"}
unit PNGh;
interface
uses png;
{$IFDEF FPC}
{$PACKRECORDS C}
{$ELSE}
{$DEFINE cdecl attribute(cdecl)}
{$ENDIF}
const
// Constants for libpng, they are not defined in png unit.
// We actually don't need all of them.
// These describe the color_type field in png_info.
// color type masks
PNG_COLOR_MASK_PALETTE = 1;
PNG_COLOR_MASK_COLOR = 2;
PNG_COLOR_MASK_ALPHA = 4;
// color types. Note that not all combinations are legal
PNG_COLOR_TYPE_GRAY = 0;
PNG_COLOR_TYPE_PALETTE = PNG_COLOR_MASK_COLOR or PNG_COLOR_MASK_PALETTE;
PNG_COLOR_TYPE_RGB = PNG_COLOR_MASK_COLOR;
PNG_COLOR_TYPE_RGB_ALPHA = PNG_COLOR_MASK_COLOR or PNG_COLOR_MASK_ALPHA;
PNG_COLOR_TYPE_GRAY_ALPHA = PNG_COLOR_MASK_ALPHA;
// aliases
PNG_COLOR_TYPE_RGBA = PNG_COLOR_TYPE_RGB_ALPHA;
PNG_COLOR_TYPE_GA = PNG_COLOR_TYPE_GRAY_ALPHA;
// This is for compression type. PNG 1.0-1.2 only define the single type.
PNG_COMPRESSION_TYPE_BASE = 0; // Deflate method 8, 32K window
PNG_COMPRESSION_TYPE_DEFAULT = PNG_COMPRESSION_TYPE_BASE;
// This is for filter type. PNG 1.0-1.2 only define the single type.
PNG_FILTER_TYPE_BASE = 0; // Single row per-byte filtering
PNG_INTRAPIXEL_DIFFERENCING = 64; // Used only in MNG datastreams
PNG_FILTER_TYPE_DEFAULT = PNG_FILTER_TYPE_BASE;
// These are for the interlacing type. These values should NOT be changed.
PNG_INTERLACE_NONE = 0; // Non-interlaced image
PNG_INTERLACE_ADAM7 = 1; // Adam7 interlacing
PNG_INTERLACE_LAST = 2; // Not a valid value
type
// where is better place for this definition?
PFile = ^file;
procedure png_init_pascal_io(png_ptr: png_structp; pf : PFile);
implementation
// We cannot get c-style FILE* pointer to pass it to libpng, so we implement our own writing functions
procedure PngWriteData(png_ptr: png_structp; p: PByte; len: png_size_t); cdecl;
begin
BlockWrite( PFile(png_get_io_ptr(png_ptr))^, p^, len);
end;
procedure PngFlushData(png_ptr: png_structp); cdecl;
begin
end;
procedure png_init_pascal_io(png_ptr: png_structp; pf : PFile);
begin
png_set_write_fn(png_ptr, pf, @PngWriteData, @PngFlushData);
end;
end.