libquicktime: /tmp/tgz/libquicktime-1.1.3/include/quicktime/lqt_codecinfo.h Source File

# lqt_codecinfo.h

    00001 /*******************************************************************************
    00002  lqt_codecinfo.h
    00003
    00004  libquicktime - A library for reading and writing quicktime/avi/mp4 files.
    00005  http://libquicktime.sourceforge.net
    00006
    00007  Copyright (C) 2002 Heroine Virtual Ltd.
    00008  Copyright (C) 2002-2007 Members of the libquicktime project.
    00009
    00010  This library is free software; you can redistribute it and/or modify it under
    00011  the terms of the GNU Lesser General Public License as published by the Free
    00012  Software Foundation; either version 2.1 of the License, or (at your option)
    00013  any later version.
    00014
    00015  This library is distributed in the hope that it will be useful, but WITHOUT
    00016  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
    00017  FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
    00018  details.
    00019
    00020  You should have received a copy of the GNU Lesser General Public License along
    00021  with this library; if not, write to the Free Software Foundation, Inc., 51
    00022  Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
    00023 *******************************************************************************/
    00024
    00025 /*
    00026  *   Codec info structure for libquicktime
    00027  *   (first approximation)
    00028  */
    00029
    00030 /* Type of a codec parameter */
    00031
    00032 #ifndef _LQT_CODEC_INFO_H_
    00033 #define _LQT_CODEC_INFO_H_
    00034
    00035 #pragma GCC visibility push(default)
    00036
    00037 #include <inttypes.h>
    00038
    00039
    00040
    00041 #ifdef __cplusplus
    00042 extern "C" {
    00043 #endif /* __cplusplus */
    00044
    00078 typedef enum
    00079   {
    00080     LQT_PARAMETER_INT,
    00081     LQT_PARAMETER_FLOAT,
    00082     LQT_PARAMETER_STRING,
    00083     LQT_PARAMETER_STRINGLIST,
    00084     /* This dummy type is used to separate sections (real_name will be on tab-label) */
    00085     LQT_PARAMETER_SECTION,
    00086   } lqt_parameter_type_t;
    00087
    00094 typedef union
    00095   {
    00096   int val_int;
    00097   char * val_string;
    00098   float val_float;
    00099   } lqt_parameter_value_t;
    00100
    00108 typedef struct
    00109   {
    00110   char * name;
    00112   char * real_name;
    00114   lqt_parameter_type_t type;
    00116   lqt_parameter_value_t val_default;
    00118   /*
    00119    *   Minimum and maximum values:
    00120    *   These are only valid for numeric types and if val_min < val_max
    00121    */
    00122
    00123   lqt_parameter_value_t val_min;
    00124   lqt_parameter_value_t val_max;
    00126   int num_digits;
    00128   /*
    00129    *  Possible options (only valid for LQT_STRINGLIST)
    00130    */
    00131
    00132   int num_stringlist_options;
    00133   char ** stringlist_options;
    00134   char ** stringlist_labels;
    00136   char * help_string;
    00138   } lqt_parameter_info_t;
    00139
    00144 typedef enum
    00145   {
    00146     LQT_CODEC_AUDIO,
    00147     LQT_CODEC_VIDEO
    00148   } lqt_codec_type;
    00149
    00154 typedef enum
    00155   {
    00156     LQT_DIRECTION_ENCODE,
    00157     LQT_DIRECTION_DECODE,
    00158     LQT_DIRECTION_BOTH
    00159   } lqt_codec_direction;
    00160
    00165 #define LQT_CODEC_OBSOLETE (1<<24)
    00166
    00171 typedef struct lqt_codec_info_s
    00172   {
    00173   int compatibility_flags;
    00175   /* These are set by the plugins */
    00176
    00177   char * name;
    00178   char * long_name;
    00179   char * description;
    00181   lqt_codec_type type;
    00182   lqt_codec_direction direction;
    00184   int num_fourccs;
    00185   char ** fourccs;
    00187   int num_wav_ids;
    00188   int * wav_ids;
    00191   int num_encoding_parameters;
    00192   lqt_parameter_info_t * encoding_parameters;
    00194   int num_decoding_parameters;
    00195   lqt_parameter_info_t * decoding_parameters;
    00197   /* The following members are set by libquicktime      */
    00198
    00199   char * module_filename;
    00200   int module_index;
    00202   uint32_t file_time;
    00204   char * gettext_domain;
    00205   char * gettext_directory;
    00207   int num_encoding_colormodels;
    00208   int * encoding_colormodels;
    00210   struct lqt_codec_info_s * next;
    00211   } lqt_codec_info_t;
    00212
    00213
    00214 /* Global Entry points */
    00215
    00223 void lqt_registry_init();
    00224
    00233 void lqt_registry_destroy();
    00234
    00235 /* \ingroup codec_registry
    00236  *
    00237  * Save the registry file $HOME/.libquicktime_codecs.
    00238  * Under normal circumstances, you never need to call this function
    00239  */
    00240
    00241 void lqt_registry_write();
    00242
    00243
    00244 /******************************************************
    00245  *  Non thread save functions for querying the
    00246  *  codec registry. Suitable for single threaded
    00247  *  applications (might become obsolete)
    00248  ******************************************************/
    00249
    00257 int lqt_get_num_audio_codecs();
    00258
    00266 int lqt_get_num_video_codecs();
    00267
    00276 const lqt_codec_info_t * lqt_get_audio_codec_info(int index);
    00277
    00286 const lqt_codec_info_t * lqt_get_video_codec_info(int index);
    00287
    00288 /********************************************************************
    00289  *  Thread save function for getting codec parameters
    00290  *  All these functions return a NULL terminated array of local
    00291  *  copies of the codec data which must be freed using
    00292  *  lqt_destroy_codec_info(lqt_codec_info_t ** info) declared below
    00293  ********************************************************************/
    00294
    00307 lqt_codec_info_t ** lqt_query_registry(int audio, int video,
    00308                                        int encode, int decode);
    00309
    00320 lqt_codec_info_t ** lqt_find_audio_codec(char * fourcc, int encode);
    00321
    00332 lqt_codec_info_t ** lqt_find_audio_codec_by_wav_id(int wav_id, int encode);
    00333
    00344 lqt_codec_info_t ** lqt_find_video_codec(char * fourcc, int encode);
    00345
    00346
    00347
    00348
    00349
    00350
    00360 lqt_codec_info_t ** lqt_find_audio_codec_by_name(const char * name);
    00361
    00371 lqt_codec_info_t ** lqt_find_video_codec_by_name(const char * name);
    00372
    00383 lqt_codec_info_t ** lqt_audio_codec_from_file(quicktime_t * file, int track);
    00384
    00395 lqt_codec_info_t ** lqt_video_codec_from_file(quicktime_t * file, int track);
    00396
    00405 void lqt_destroy_codec_info(lqt_codec_info_t ** info);
    00406
    00418 void lqt_reorder_audio_codecs(lqt_codec_info_t ** codec_info);
    00419
    00431 void lqt_reorder_video_codecs(lqt_codec_info_t ** codec_info);
    00432
    00446 void lqt_set_default_parameter(lqt_codec_type type, int encode,
    00447                                const char * codec_name,
    00448                                const char * parameter_name,
    00449                                lqt_parameter_value_t * val);
    00450
    00461 void lqt_restore_default_parameters(lqt_codec_info_t * codec_info,
    00462                                     int encode, int decode);
    00463
    00464
    00473 void lqt_dump_codec_info(const lqt_codec_info_t * info);
    00474
    00475 #ifdef __cplusplus
    00476 }
    00477 #endif /* __cplusplus */
    00478
    00479 #pragma GCC visibility pop
    00480
    00481 #endif /* _LQT_CODEC_INFO_H_ */