(*
* copyright (c) 2006 Michael Niedermayer <michaelni@gmx.at>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*)
(* This is a part of Pascal porting of ffmpeg.
* Originally by Victor Zinetz for Delphi and Free Pascal on Windows.
* For Mac OS X, some modifications were made by The Creative CAT, denoted as CAT
* in the source codes *)
(*
* Conversions of
*
* libavutil/avutil.h:
* Min. version: ?
* Max. version: revision 13595, Sun Jun 1 07:37:43 2008 UTC
*
* libavutil/mem.h:
* revision 13665, Thu Jun 5 19:49:47 2008 UTC
*
* libavutil/log.h:
* revision 13068, Tue May 6 08:41:13 2008 UTC
*)
unit avutil;
{$IFDEF FPC}
{$MODE DELPHI}
{$PACKENUM 4} (* use 4-byte enums *)
{$PACKRECORDS C} (* C/C++-compatible record packing *)
{$ELSE}
{$MINENUMSIZE 4} (* use 4-byte enums *)
{$ENDIF}
{$IFDEF DARWIN}
{$linklib libavutil}
{$ENDIF}
interface
uses
mathematics,
rational,
UConfig;
const
(* Max. supported version by this header *)
LIBAVUTIL_MAX_VERSION_MAJOR = 49;
LIBAVUTIL_MAX_VERSION_MINOR = 7;
LIBAVUTIL_MAX_VERSION_RELEASE = 0;
LIBAVUTIL_MAX_VERSION = (LIBAVUTIL_MAX_VERSION_MAJOR * VERSION_MAJOR) +
(LIBAVUTIL_MAX_VERSION_MINOR * VERSION_MINOR) +
(LIBAVUTIL_MAX_VERSION_RELEASE * VERSION_RELEASE);
(* Check if linked versions are supported *)
{$IF (LIBAVUTIL_VERSION > LIBAVUTIL_MAX_VERSION)}
{$MESSAGE Warn 'Linked version of libavutil may be unsupported!'}
{$IFEND}
{$IFDEF FPC}
// check for version of FPC < 2.2.0
{$IF (FPC_VERSION < 2) or ((FPC_VERSION = 2) and (FPC_RELEASE < 2))}
type uint64 = QWord;
{$IFEND}
{$ENDIF}
type
(**
* Pixel format. Notes:
*
* PIX_FMT_RGB32 is handled in an endian-specific manner. A RGBA
* color is put together as:
* (A << 24) | (R << 16) | (G << 8) | B
* This is stored as BGRA on little endian CPU architectures and ARGB on
* big endian CPUs.
*
* When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
* image data is stored in AVFrame.data[0]. The palette is transported in
* AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
* formatted the same as in PIX_FMT_RGB32 described above (i.e., it is
* also endian-specific). Note also that the individual RGB palette
* components stored in AVFrame.data[1] should be in the range 0..255.
* This is important as many custom PAL8 video codecs that were designed
* to run on the IBM VGA graphics adapter use 6-bit palette components.
*)
PAVPixelFormat = ^TAVPixelFormat;
TAVPixelFormat = (
PIX_FMT_NONE= -1,
PIX_FMT_YUV420P, ///< Planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
PIX_FMT_YUYV422, ///< Packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
PIX_FMT_RGB24, ///< Packed RGB 8:8:8, 24bpp, RGBRGB...
PIX_FMT_BGR24, ///< Packed RGB 8:8:8, 24bpp, BGRBGR...
PIX_FMT_YUV422P, ///< Planar YUV 4:2:2, 16bpp, (1 Cr & Cb sample per 2x1 Y samples)
PIX_FMT_YUV444P, ///< Planar YUV 4:4:4, 24bpp, (1 Cr & Cb sample per 1x1 Y samples)
PIX_FMT_RGB32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8R 8G 8B(lsb), in cpu endianness
PIX_FMT_YUV410P, ///< Planar YUV 4:1:0, 9bpp, (1 Cr & Cb sample per 4x4 Y samples)
PIX_FMT_YUV411P, ///< Planar YUV 4:1:1, 12bpp, (1 Cr & Cb sample per 4x1 Y samples)
PIX_FMT_RGB565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5R 6G 5B(lsb), in cpu endianness
PIX_FMT_RGB555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5R 5G 5B(lsb), in cpu endianness most significant bit to 1
PIX_FMT_GRAY8, ///< Y , 8bpp
PIX_FMT_MONOWHITE, ///< Y , 1bpp, 0 is white, 1 is black
PIX_FMT_MONOBLACK, ///< Y , 1bpp, 0 is black, 1 is white
PIX_FMT_PAL8, ///< 8 bit with PIX_FMT_RGB32 palette
PIX_FMT_YUVJ420P, ///< Planar YUV 4:2:0, 12bpp, full scale (jpeg)
PIX_FMT_YUVJ422P, ///< Planar YUV 4:2:2, 16bpp, full scale (jpeg)
PIX_FMT_YUVJ444P, ///< Planar YUV 4:4:4, 24bpp, full scale (jpeg)
PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
PIX_FMT_XVMC_MPEG2_IDCT,
PIX_FMT_UYVY422, ///< Packed YUV 4:2:2, 16bpp, Cb Y0 Cr Y1
PIX_FMT_UYYVYY411, ///< Packed YUV 4:1:1, 12bpp, Cb Y0 Y1 Cr Y2 Y3
PIX_FMT_BGR32, ///< Packed RGB 8:8:8, 32bpp, (msb)8A 8B 8G 8R(lsb), in cpu endianness
PIX_FMT_BGR565, ///< Packed RGB 5:6:5, 16bpp, (msb) 5B 6G 5R(lsb), in cpu endianness
PIX_FMT_BGR555, ///< Packed RGB 5:5:5, 16bpp, (msb)1A 5B 5G 5R(lsb), in cpu endianness most significant bit to 1
PIX_FMT_BGR8, ///< Packed RGB 3:3:2, 8bpp, (msb)2B 3G 3R(lsb)
PIX_FMT_BGR4, ///< Packed RGB 1:2:1, 4bpp, (msb)1B 2G 1R(lsb)
PIX_FMT_BGR4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)1B 2G 1R(lsb)
PIX_FMT_RGB8, ///< Packed RGB 3:3:2, 8bpp, (msb)2R 3G 3B(lsb)
PIX_FMT_RGB4, ///< Packed RGB 1:2:1, 4bpp, (msb)2R 3G 3B(lsb)
PIX_FMT_RGB4_BYTE, ///< Packed RGB 1:2:1, 8bpp, (msb)2R 3G 3B(lsb)
PIX_FMT_NV12, ///< Planar YUV 4:2:0, 12bpp, 1 plane for Y and 1 for UV
PIX_FMT_NV21, ///< as above, but U and V bytes are swapped
PIX_FMT_RGB32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8R 8G 8B 8A(lsb), in cpu endianness
PIX_FMT_BGR32_1, ///< Packed RGB 8:8:8, 32bpp, (msb)8B 8G 8R 8A(lsb), in cpu endianness
PIX_FMT_GRAY16BE, ///< Y , 16bpp, big-endian
PIX_FMT_GRAY16LE, ///< Y , 16bpp, little-endian
PIX_FMT_YUV440P, ///< Planar YUV 4:4:0 (1 Cr & Cb sample per 1x2 Y samples)
PIX_FMT_YUVJ440P, ///< Planar YUV 4:4:0 full scale (jpeg)
PIX_FMT_YUVA420P, ///< Planar YUV 4:2:0, 20bpp, (1 Cr & Cb sample per 2x2 Y & A samples)
PIX_FMT_NB ///< number of pixel formats, DO NOT USE THIS if you want to link with shared libav* because the number of formats might differ between versions
);
const
{$ifdef WORDS_BIGENDIAN}
PIX_FMT_RGBA = PIX_FMT_RGB32_1;
PIX_FMT_BGRA = PIX_FMT_BGR32_1;
PIX_FMT_ARGB = PIX_FMT_RGB32;
PIX_FMT_ABGR = PIX_FMT_BGR32;
PIX_FMT_GRAY16 = PIX_FMT_GRAY16BE;
{$else}
PIX_FMT_RGBA = PIX_FMT_BGR32;
PIX_FMT_BGRA = PIX_FMT_RGB32;
PIX_FMT_ARGB = PIX_FMT_BGR32_1;
PIX_FMT_ABGR = PIX_FMT_RGB32_1;
PIX_FMT_GRAY16 = PIX_FMT_GRAY16LE;
{$endif}
{$IF LIBAVUTIL_VERSION_MAJOR < 50} // 50.0.0
PIX_FMT_UYVY411 = PIX_FMT_UYYVYY411;
PIX_FMT_RGBA32 = PIX_FMT_RGB32;
PIX_FMT_YUV422 = PIX_FMT_YUYV422;
{$IFEND}
(* common.h *)
function MKTAG(a,b,c,d: char): integer;
(* mem.h *)
(**
* Allocate a block of \p size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU).
* @param size Size in bytes for the memory block to be allocated.
* @return Pointer to the allocated block, NULL if it cannot allocate
* it.
* @see av_mallocz()
*)
function av_malloc (size: cardinal): pointer;
cdecl; external av__util; {av_malloc_attrib av_alloc_size(1)}
(**
* Allocate or reallocate a block of memory.
* If \p ptr is NULL and \p size > 0, allocate a new block. If \p
* size is zero, free the memory block pointed by \p ptr.
* @param size Size in bytes for the memory block to be allocated or
* reallocated.
* @param ptr Pointer to a memory block already allocated with
* av_malloc(z)() or av_realloc() or NULL.
* @return Pointer to a newly reallocated block or NULL if it cannot
* reallocate or the function is used to free the memory block.
* @see av_fast_realloc()
*)
function av_realloc (ptr: pointer; size: cardinal): pointer;
cdecl; external av__util; {av_alloc_size(2)}
(**
* Free a memory block which has been allocated with av_malloc(z)() or
* av_realloc().
* @param ptr Pointer to the memory block which should be freed.
* @note ptr = NULL is explicitly allowed.
* @note It is recommended that you use av_freep() instead.
* @see av_freep()
*)
procedure av_free (ptr: pointer);
cdecl; external av__util;
(**
* Allocate a block of \p size bytes with alignment suitable for all
* memory accesses (including vectors if available on the CPU) and
* set to zeroes all the bytes of the block.
* @param size Size in bytes for the memory block to be allocated.
* @return Pointer to the allocated block, NULL if it cannot allocate
* it.
* @see av_malloc()
*)
function av_mallocz (size: cardinal): pointer;
cdecl; external av__util; {av_malloc_attrib av_alloc_size(1)}
(**
* Duplicate the string \p s.
* @param s String to be duplicated.
* @return Pointer to a newly allocated string containing a
* copy of \p s or NULL if it cannot be allocated.
*)
function av_strdup({const} s: pchar): pchar;
cdecl; external av__util; {av_malloc_attrib}
(**
* Free a memory block which has been allocated with av_malloc(z)() or
* av_realloc() and set to NULL the pointer to it.
* @param ptr Pointer to the pointer to the memory block which should
* be freed.
* @see av_free()
*)
procedure av_freep (ptr: pointer);
cdecl; external av__util;
(* log.h *)
const
{$IF LIBAVUTIL_VERSION_MAJOR < 50}
AV_LOG_QUIET = -1;
AV_LOG_FATAL = 0;
AV_LOG_ERROR = 0;
AV_LOG_WARNING = 1;
AV_LOG_INFO = 1;
AV_LOG_VERBOSE = 1;
AV_LOG_DEBUG = 2;
{$ELSE}
AV_LOG_QUIET = -8;
(**
* something went really wrong and we will crash now
*)
AV_LOG_PANIC = 0;
(**
* something went wrong and recovery is not possible
* like no header in a format which depends on it or a combination
* of parameters which are not allowed
*)
AV_LOG_FATAL = 8;
(**
* something went wrong and cannot losslessly be recovered
* but not all future data is affected
*)
AV_LOG_ERROR = 16;
(**
* something somehow does not look correct / something which may or may not
* lead to some problems like use of -vstrict -2
*)
AV_LOG_WARNING = 24;
AV_LOG_INFO = 32;
AV_LOG_VERBOSE = 40;
(**
* stuff which is only useful for libav* developers
*)
AV_LOG_DEBUG = 48;
{$IFEND}
function av_log_get_level(): integer;
cdecl; external av__util;
procedure av_log_set_level(level: integer);
cdecl; external av__util;
implementation
function MKTAG(a,b,c,d: char): integer;
begin
Result := (ord(a) or (ord(b) shl 8) or (ord(c) shl 16) or (ord(d) shl 24));
end;
end.
