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authork-m_schindler <k-m_schindler@b956fd51-792f-4845-bead-9b4dfca2ff2c>2012-10-19 12:57:23 +0000
committerk-m_schindler <k-m_schindler@b956fd51-792f-4845-bead-9b4dfca2ff2c>2012-10-19 12:57:23 +0000
commit443ca12e52309ba9a6f6076a0feb9308326667a8 (patch)
tree41e6c3aae48d6dd714e221bb6f1694e67f4507e3 /src/lib/ffmpeg-0.11/avutil.pas
parent17c04c9149b1cb263e1e8d6211e393ee0c0b1b7d (diff)
downloadusdx-443ca12e52309ba9a6f6076a0feb9308326667a8.tar.gz
usdx-443ca12e52309ba9a6f6076a0feb9308326667a8.tar.xz
usdx-443ca12e52309ba9a6f6076a0feb9308326667a8.zip
plain copy of ffmpeg-0.10 as a start for ffmpeg-0.11
git-svn-id: svn://svn.code.sf.net/p/ultrastardx/svn/trunk@2924 b956fd51-792f-4845-bead-9b4dfca2ff2c
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+(*
+ * 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.
+ * - Changes and updates by the UltraStar Deluxe Team
+ *
+ * Conversions of
+ *
+ * libavutil/avutil.h:
+ * version: 51.34.101
+ *
+ *)
+
+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
+ ctypes,
+ rational,
+ {$IFDEF UNIX}
+ BaseUnix,
+ {$ENDIF}
+ UConfig;
+
+const
+ (* Max. supported version by this header *)
+ LIBAVUTIL_MAX_VERSION_MAJOR = 51;
+ LIBAVUTIL_MAX_VERSION_MINOR = 35;
+ LIBAVUTIL_MAX_VERSION_RELEASE = 100;
+ LIBAVUTIL_MAX_VERSION = (LIBAVUTIL_MAX_VERSION_MAJOR * VERSION_MAJOR) +
+ (LIBAVUTIL_MAX_VERSION_MINOR * VERSION_MINOR) +
+ (LIBAVUTIL_MAX_VERSION_RELEASE * VERSION_RELEASE);
+
+ (* Min. supported version by this header *)
+ LIBAVUTIL_MIN_VERSION_MAJOR = 51;
+ LIBAVUTIL_MIN_VERSION_MINOR = 34;
+ LIBAVUTIL_MIN_VERSION_RELEASE = 101;
+ LIBAVUTIL_MIN_VERSION = (LIBAVUTIL_MIN_VERSION_MAJOR * VERSION_MAJOR) +
+ (LIBAVUTIL_MIN_VERSION_MINOR * VERSION_MINOR) +
+ (LIBAVUTIL_MIN_VERSION_RELEASE * VERSION_RELEASE);
+
+(* Check if linked versions are supported *)
+{$IF (LIBAVUTIL_VERSION < LIBAVUTIL_MIN_VERSION)}
+ {$MESSAGE Error 'Linked version of libavutil is too old!'}
+{$IFEND}
+
+{$IF (LIBAVUTIL_VERSION > LIBAVUTIL_MAX_VERSION)}
+ {$MESSAGE Error 'Linked version of libavutil is not yet supported!'}
+{$IFEND}
+
+type
+{$IFNDEF FPC}
+ // defines for Delphi
+ size_t = cardinal;
+{$ENDIF}
+ Psize_t = ^size_t;
+
+(**
+ * Return the LIBAVUTIL_VERSION_INT constant.
+ *)
+function avutil_version(): cuint;
+ cdecl; external av__util;
+
+(**
+ * Return the libavutil build-time configuration.
+ *)
+function avutil_configuration(): PAnsiChar;
+ cdecl; external av__util;
+
+(**
+ * Return the libavutil license.
+ *)
+function avutil_license(): PAnsiChar;
+ cdecl; external av__util;
+
+(**
+ * @addtogroup lavu_media Media Type
+ * @brief Media Type
+ *)
+
+type
+ TAVMediaType = (
+ AVMEDIA_TYPE_UNKNOWN = -1, ///< Usually treated as AVMEDIA_TYPE_DATA
+ AVMEDIA_TYPE_VIDEO,
+ AVMEDIA_TYPE_AUDIO,
+ AVMEDIA_TYPE_DATA, ///< Opaque data information usually continuous
+ AVMEDIA_TYPE_SUBTITLE,
+ AVMEDIA_TYPE_ATTACHMENT, ///< Opaque data information usually sparse
+ AVMEDIA_TYPE_NB
+ );
+
+(**
+ * Return a string describing the media_type enum, NULL if media_type
+ * is unknown.
+ *)
+function av_get_media_type_string(media_type: TAVMediaType): PAnsiChar;
+ cdecl; external av__util;
+
+const
+ FF_LAMBDA_SHIFT = 7;
+ FF_LAMBDA_SCALE = (1 shl FF_LAMBDA_SHIFT);
+ FF_QP2LAMBDA = 118; ///< factor to convert from H.263 QP to lambda
+ FF_LAMBDA_MAX = (256*128-1);
+
+ FF_QUALITY_SCALE = FF_LAMBDA_SCALE; //FIXME maybe remove
+
+(**
+ * @brief Undefined timestamp value
+ *
+ * Usually reported by demuxer that work on containers that do not provide
+ * either pts or dts.
+ *)
+
+ AV_NOPTS_VALUE = $8000000000000000;
+
+(**
+ * Internal time base represented as integer
+ *)
+
+ AV_TIME_BASE = 1000000;
+
+(**
+ * Internal time base represented as fractional value
+ *)
+
+ AV_TIME_BASE_Q : TAVRational = (num: 1; den: AV_TIME_BASE);
+
+(**
+ * @}
+ * @}
+ * @defgroup lavu_picture Image related
+ *
+ * AVPicture types, pixel formats and basic image planes manipulation.
+ *
+ * @{
+ *)
+
+type
+ TAVPictureType = (
+ AV_PICTURE_TYPE_NONE = 0, ///< Undefined
+ AV_PICTURE_TYPE_I, ///< Intra
+ AV_PICTURE_TYPE_P, ///< Predicted
+ AV_PICTURE_TYPE_B, ///< Bi-dir predicted
+ AV_PICTURE_TYPE_S, ///< S(GMC)-VOP MPEG4
+ AV_PICTURE_TYPE_SI, ///< Switching Intra
+ AV_PICTURE_TYPE_SP, ///< Switching Predicted
+ AV_PICTURE_TYPE_BI ///< BI type
+ );
+
+(**
+ * Return a single letter to describe the given picture type
+ * pict_type.
+ *
+ * @param[in] pict_type the picture type @return a single character
+ * representing the picture type, '?' if pict_type is unknown
+ *)
+function av_get_picture_type_char(pict_type: TAVPictureType): PAnsiChar;
+ cdecl; external av__util;
+
+(**
+ * Return x default pointer in case p is NULL.
+ *)
+function av_x_if_null(p: {const} pointer; x: {const} pointer): pointer; {$IFDEF HasInline}inline;{$ENDIF}
+
+{$INCLUDE libavutil/cpu.pas}
+
+{$INCLUDE libavutil/dict.pas}
+
+{$INCLUDE libavutil/error.pas}
+
+{$INCLUDE libavutil/mathematics.pas}
+
+{$INCLUDE libavutil/mem.pas}
+
+{$INCLUDE libavutil/opt.pas}
+
+{$INCLUDE libavutil/log.pas}
+
+{$INCLUDE libavutil/pixfmt.pas}
+
+{$INCLUDE libavutil/samplefmt.pas}
+
+(* libavutil/common.h *) // until now MKTAG and MKBETAG is all from common.h KMS 19/5/2010
+
+(**
+ * MKTAG and MKBETAG are usually used to convert a magic string to an enumeration index.
+ * In Pascal this can probably not be used and the functions could be removed.
+ * KMS 8/6/2012
+ *)
+function MKTAG (a, b, c, d: AnsiChar): integer; {$IFDEF HasInline}inline;{$ENDIF}
+function MKBETAG(a, b, c, d: AnsiChar): integer; {$IFDEF HasInline}inline;{$ENDIF}
+
+implementation
+
+function av_x_if_null(p: {const} pointer; x: {const} pointer): pointer; {$IFDEF HasInline}inline;{$ENDIF}
+begin
+ if p = nil then
+ Result := x
+ else
+ Result := p;
+end;
+
+(* libavutil/common.h *)
+
+function MKTAG(a, b, c, d: AnsiChar): integer; {$IFDEF HasInline}inline;{$ENDIF}
+begin
+ Result := (ord(a) or (ord(b) shl 8) or (ord(c) shl 16) or (ord(d) shl 24));
+end;
+
+function MKBETAG(a, b, c, d: AnsiChar): integer; {$IFDEF HasInline}inline;{$ENDIF}
+begin
+ Result := (ord(d) or (ord(c) shl 8) or (ord(b) shl 16) or (ord(a) shl 24));
+end;
+
+function av_size_mult(a: size_t; b: size_t; r: Psize_t): size_t;
+ cdecl; external av__util;
+(* To Be Implemented, March 2012 KMS *)
+//function av_size_mult(a: size_t; b: size_t; r: pointer): size_t;
+//begin
+// {
+// size_t t = a * b;
+// /* Hack inspired from glibc: only try the division if nelem and elsize
+// * are both greater than sqrt(SIZE_MAX). */
+// if ((a | b) >= ((size_t)1 << (sizeof(size_t) * 4)) && a && t / a != b)
+// return AVERROR(EINVAL);
+// *r = t;
+// return 0;
+//}
+//end;
+
+end.