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Diffstat (limited to 'src/lib/ffmpeg7/opt.pas')
| -rw-r--r-- | src/lib/ffmpeg7/opt.pas | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/src/lib/ffmpeg7/opt.pas b/src/lib/ffmpeg7/opt.pas deleted file mode 100644 index a779056e..00000000 --- a/src/lib/ffmpeg7/opt.pas +++ /dev/null @@ -1,281 +0,0 @@ -(* - * AVOptions - * copyright (c) 2005 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 - * - * Conversion of libavutil/opt.h - * avutil version 50.43.0 - * - *) - -unit opt; - -{$IFDEF FPC} - {$MODE DELPHI} - {$PACKENUM 4} (* use 4-byte enums *) - {$PACKRECORDS C} (* C/C++-compatible record packing *) -{$ELSE} - {$MINENUMSIZE 4} (* use 4-byte enums *) -{$ENDIF} - -interface - -uses - ctypes, - dict, - rational, - UConfig; - -type - TAVOptionType = ( - FF_OPT_TYPE_FLAGS, - FF_OPT_TYPE_INT, - FF_OPT_TYPE_INT64, - FF_OPT_TYPE_DOUBLE, - FF_OPT_TYPE_FLOAT, - FF_OPT_TYPE_STRING, - FF_OPT_TYPE_RATIONAL, - FF_OPT_TYPE_BINARY, ///< offset must point to a pointer immediately followed by an int for the length - FF_OPT_TYPE_CONST = 128 - ); - -const - AV_OPT_FLAG_ENCODING_PARAM = 1; ///< a generic parameter which can be set by the user for muxing or encoding - AV_OPT_FLAG_DECODING_PARAM = 2; ///< a generic parameter which can be set by the user for demuxing or decoding - AV_OPT_FLAG_METADATA = 4; ///< some data extracted or inserted into the file like title, comment, ... - AV_OPT_FLAG_AUDIO_PARAM = 8; - AV_OPT_FLAG_VIDEO_PARAM = 16; - AV_OPT_FLAG_SUBTITLE_PARAM = 32; - -type - (** - * AVOption - *) - PAVOption = ^TAVOption; - TAVOption = record - name: {const} PAnsiChar; - - (** - * short English help text - * @todo What about other languages? - *) - help: {const} PAnsiChar; - - (** - * The offset relative to the context structure where the option - * value is stored. It should be 0 for named constants. - *) - offset: cint; - type_: TAVOptionType; - - (** - * the default value for scalar options - *) - default_val: record - case cint of - 0: (dbl: cdouble); - 1: (str: PAnsiChar); - (* TODO those are unused now *) - 2: (i64: cint64); - 3: (q: TAVRational); - end; - min: cdouble; ///< minimum valid value for the option - max: cdouble; ///< maximum valid value for the option - - flags: cint; -//FIXME think about enc-audio, ... style flags - - (** - * The logical unit to which the option belongs. Non-constant - * options and corresponding named constants share the same - * unit. May be NULL. - *) - unit_: {const} PAnsiChar; - end; - -{$IFDEF FF_API_FIND_OPT} -(** - * Look for an option in obj. Look only for the options which - * have the flags set as specified in mask and flags (that is, - * for which it is the case that opt->flags & mask == flags). - * - * @param[in] obj a pointer to a struct whose first element is a - * pointer to an AVClass - * @param[in] name the name of the option to look for - * @param[in] unit the unit of the option to look for, or any if NULL - * @return a pointer to the option found, or NULL if no option - * has been found - *) -function av_find_opt(obj: Pointer; {const} name: {const} PAnsiChar; {const} unit_: PAnsiChar; mask: cint; flags: cint): {const} PAVOption; - cdecl; external av__util; deprecated; -{$ENDIF} - -(** - * Set the field of obj with the given name to value. - * - * @param[in] obj A struct whose first element is a pointer to an - * AVClass. - * @param[in] name the name of the field to set - * @param[in] val The value to set. If the field is not of a string - * type, then the given string is parsed. - * SI postfixes and some named scalars are supported. - * If the field is of a numeric type, it has to be a numeric or named - * scalar. Behavior with more than one scalar and +- infix operators - * is undefined. - * If the field is of a flags type, it has to be a sequence of numeric - * scalars or named flags separated by '+' or '-'. Prefixing a flag - * with '+' causes it to be set without affecting the other flags; - * similarly, '-' unsets a flag. - * @param[out] o_out if non-NULL put here a pointer to the AVOption - * found - * @param alloc when 1 then the old value will be av_freed() and the - * new av_strduped() - * when 0 then no av_free() nor av_strdup() will be used - * @return 0 if the value has been set, or an AVERROR code in case of - * error: - * AVERROR(ENOENT) if no matching option exists - * AVERROR(ERANGE) if the value is out of range - * AVERROR(EINVAL) if the value is not valid - *) -function av_set_string3(obj: Pointer; name: {const} PAnsiChar; val: {const} PAnsiChar; alloc: cint; out o_out: {const} PAVOption): cint; - cdecl; external av__util; - -function av_set_double(obj: pointer; name: {const} PAnsiChar; n: cdouble): PAVOption; - cdecl; external av__util; -function av_set_q(obj: pointer; name: {const} PAnsiChar; n: TAVRational): PAVOption; - cdecl; external av__util; -function av_set_int(obj: pointer; name: {const} PAnsiChar; n: cint64): PAVOption; - cdecl; external av__util; -function av_get_double(obj: pointer; name: {const} PAnsiChar; var o_out: {const} PAVOption): cdouble; - cdecl; external av__util; -function av_get_q(obj: pointer; name: {const} PAnsiChar; var o_out: {const} PAVOption): TAVRational; - cdecl; external av__util; -function av_get_int(obj: pointer; name: {const} PAnsiChar; var o_out: {const} PAVOption): cint64; - cdecl; external av__util; -function av_get_string(obj: pointer; name: {const} PAnsiChar; var o_out: {const} PAVOption; buf: PAnsiChar; buf_len: cint): PAnsiChar; - cdecl; external av__util; -function av_next_option(obj: pointer; last: {const} PAVOption): PAVOption; - cdecl; external av__util; - -(** - * Show the obj options. - * - * @param req_flags requested flags for the options to show. Show only the - * options for which it is opt->flags & req_flags. - * @param rej_flags rejected flags for the options to show. Show only the - * options for which it is !(opt->flags & req_flags). - * @param av_log_obj log context to use for showing the options - *) -function av_opt_show2(obj: pointer; av_log_obj: pointer; req_flags: cint; rej_flags: cint): cint; - cdecl; external av__util; - -procedure av_opt_set_defaults(s: pointer); - cdecl; external av__util; -procedure av_opt_set_defaults2(s: Pointer; mask: cint; flags: cint); - cdecl; external av__util; - -(** - * Parse the key/value pairs list in opts. For each key/value pair - * found, stores the value in the field in ctx that is named like the - * key. ctx must be an AVClass context, storing is done using - * AVOptions. - * - * @param opts options string to parse, may be NULL - * @param key_val_sep a 0-terminated list of characters used to - * separate key from value - * @param pairs_sep a 0-terminated list of characters used to separate - * two pairs from each other - * @return the number of successfully set key/value pairs, or a negative - * value corresponding to an AVERROR code in case of error: - * AVERROR(EINVAL) if opts cannot be parsed, - * the error code issued by av_set_string3() if a key/value pair - * cannot be set -*) -function av_set_options_string(ctx: pointer; opts: {const} PAnsiChar; - key_val_sep: {const} PAnsiChar; pairs_sep: {const} PAnsiChar): cint; - cdecl; external av__util; - -(** - * Free all string and binary options in obj. - *) -procedure av_opt_free(obj: pointer); - cdecl; external av__util; - -(** - * Check whether a particular flag is set in a flags field. - * - * @param field_name the name of the flag field option - * @param flag_name the name of the flag to check - * @return non-zero if the flag is set, zero if the flag isn't set, - * isn't of the right type, or the flags field doesn't exist. - *) -function av_opt_flag_is_set(obj: pointer; field_name: {const} PAnsiChar; flag_name: {const} PAnsiChar): cint; - cdecl; external av__util; - -(** - * Set all the options from a given dictionary on an object. - * - * @param obj a struct whose first element is a pointer to AVClass - * @param options options to process. This dictionary will be freed and replaced - * by a new one containing all options not found in obj. - * Of course this new dictionary needs to be freed by caller - * with av_dict_free(). - * - * @return 0 on success, a negative AVERROR if some option was found in obj, - * but could not be set. - * - * @see av_dict_copy() - *) -function av_opt_set_dict(obj: pointer; var options: PAVDictionary): cint; - cdecl; external av__util; - -const - AV_OPT_SEARCH_CHILDREN = 0001; (**< Search in possible children of the - given object first.*) - -(** - * Look for an option in an object. Consider only options which - * have all the specified flags set. - * - * @param[in] obj A pointer to a struct whose first element is a - * pointer to an AVClass. - * @param[in] name The name of the option to look for. - * @param[in] unit When searching for named constants, name of the unit - * it belongs to. - * @param opt_flags Find only options with all the specified flags set (AV_OPT_FLAG). - * @param search_flags A combination of AV_OPT_SEARCH_*. - * - * @return A pointer to the option found, or NULL if no option - * was found. - * - * @note Options found with AV_OPT_SEARCH_CHILDREN flag may not be settable - * directly with av_set_string3(). Use special calls which take an options - * AVDictionary (e.g. avformat_open_input()) to set options found with this - * flag. - *) -function av_opt_find(obj: pointer; name: {const} PAnsiChar; unit_: {const} PAnsiChar; - opt_flags: cint; search_flags: cint): PAVOption; - cdecl; external av__util; - -implementation - -end. |