2 * factory.c -- the factory method interfaces
3 * Copyright (C) 2003-2012 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
26 #include <framework/mlt.h>
28 extern mlt_consumer consumer_avformat_init( mlt_profile profile, char *file );
29 extern mlt_filter filter_avcolour_space_init( void *arg );
30 extern mlt_filter filter_avdeinterlace_init( void *arg );
31 extern mlt_filter filter_avresample_init( char *arg );
32 extern mlt_filter filter_swscale_init( mlt_profile profile, char *arg );
33 extern mlt_producer producer_avformat_init( mlt_profile profile, const char *service, char *file );
35 // ffmpeg Header files
36 #include <libavformat/avformat.h>
38 #include <libavdevice/avdevice.h>
40 #if LIBAVCODEC_VERSION_MAJOR >= 53
41 #include <libavutil/opt.h>
43 #include <libavcodec/opt.h>
46 #if LIBAVUTIL_VERSION_INT < ((51<<16)+(12<<8)+0)
47 #define AV_OPT_TYPE_FLAGS FF_OPT_TYPE_FLAGS
48 #define AV_OPT_TYPE_INT FF_OPT_TYPE_INT
49 #define AV_OPT_TYPE_INT64 FF_OPT_TYPE_INT64
50 #define AV_OPT_TYPE_DOUBLE FF_OPT_TYPE_DOUBLE
51 #define AV_OPT_TYPE_FLOAT FF_OPT_TYPE_FLOAT
52 #define AV_OPT_TYPE_STRING FF_OPT_TYPE_STRING
53 #define AV_OPT_TYPE_RATIONAL FF_OPT_TYPE_RATIONAL
54 #define AV_OPT_TYPE_BINARY FF_OPT_TYPE_BINARY
55 #define AV_OPT_TYPE_CONST FF_OPT_TYPE_CONST
58 // A static flag used to determine if avformat has been initialised
59 static int avformat_initialised = 0;
61 static int avformat_lockmgr(void **mutex, enum AVLockOp op)
63 pthread_mutex_t** pmutex = (pthread_mutex_t**) mutex;
68 *pmutex = (pthread_mutex_t*) malloc(sizeof(pthread_mutex_t));
69 if (!*pmutex) return -1;
70 pthread_mutex_init(*pmutex, NULL);
73 if (!*pmutex) return -1;
74 pthread_mutex_lock(*pmutex);
77 if (!*pmutex) return -1;
78 pthread_mutex_unlock(*pmutex);
81 if (!*pmutex) return -1;
82 pthread_mutex_destroy(*pmutex);
91 static void unregister_lockmgr( void *p )
93 av_lockmgr_register( NULL );
96 static void avformat_init( )
98 // Initialise avformat if necessary
99 if ( avformat_initialised == 0 )
101 avformat_initialised = 1;
102 av_lockmgr_register( &avformat_lockmgr );
103 mlt_factory_register_for_clean_up( &avformat_lockmgr, unregister_lockmgr );
106 avdevice_register_all();
108 #if LIBAVFORMAT_VERSION_INT >= ((53<<16)+(13<<8))
109 avformat_network_init();
111 av_log_set_level( mlt_log_get_level() );
115 static void *create_service( mlt_profile profile, mlt_service_type type, const char *id, void *arg )
119 if ( !strncmp( id, "avformat", 8 ) )
121 if ( type == producer_type )
122 return producer_avformat_init( profile, id, arg );
123 else if ( type == consumer_type )
124 return consumer_avformat_init( profile, arg );
128 if ( !strcmp( id, "avcolor_space" ) )
129 return filter_avcolour_space_init( arg );
130 if ( !strcmp( id, "avcolour_space" ) )
131 return filter_avcolour_space_init( arg );
132 if ( !strcmp( id, "avdeinterlace" ) )
133 return filter_avdeinterlace_init( arg );
134 #if defined(FFUDIV) || (LIBAVCODEC_VERSION_INT < ((54<<16)+(26<<8)+0))
135 if ( !strcmp( id, "avresample" ) )
136 return filter_avresample_init( arg );
138 if ( !strcmp( id, "swscale" ) )
139 return filter_swscale_init( profile, arg );
144 static void add_parameters( mlt_properties params, void *object, int req_flags, const char *unit, const char *subclass )
146 const AVOption *opt = NULL;
148 // For each AVOption on the AVClass object
149 #if LIBAVUTIL_VERSION_INT >= ((51<<16)+(12<<8)+0)
150 while ( ( opt = av_opt_next( object, opt ) ) )
152 while ( ( opt = av_next_option( object, opt ) ) )
155 // If matches flags and not a binary option (not supported by Mlt)
156 if ( !( opt->flags & req_flags ) || ( opt->type == AV_OPT_TYPE_BINARY ) )
159 // Ignore constants (keyword values)
160 if ( !unit && opt->type == AV_OPT_TYPE_CONST )
162 // When processing a groups of options (unit)...
163 // ...ignore non-constants
164 else if ( unit && opt->type != AV_OPT_TYPE_CONST )
166 // ...ignore constants not in this group
167 else if ( unit && opt->type == AV_OPT_TYPE_CONST && strcmp( unit, opt->unit ) )
169 // ..add constants to the 'values' sequence
170 else if ( unit && opt->type == AV_OPT_TYPE_CONST )
173 snprintf( key, 20, "%d", mlt_properties_count( params ) );
174 mlt_properties_set( params, key, opt->name );
178 // Create a map for this option.
179 mlt_properties p = mlt_properties_new();
181 snprintf( key, 20, "%d", mlt_properties_count( params ) );
182 // Add the map to the 'parameters' sequence.
183 mlt_properties_set_data( params, key, p, 0, (mlt_destructor) mlt_properties_close, NULL );
185 // Add the parameter metadata for this AVOption.
186 mlt_properties_set( p, "identifier", opt->name );
191 char *s = malloc( strlen( opt->help ) + strlen( subclass ) + 4 );
192 strcpy( s, opt->help );
194 strcat( s, subclass );
196 mlt_properties_set( p, "description", s );
200 mlt_properties_set( p, "description", opt->help );
205 case AV_OPT_TYPE_FLAGS:
206 mlt_properties_set( p, "type", "string" );
207 mlt_properties_set( p, "format", "flags" );
209 case AV_OPT_TYPE_INT:
212 mlt_properties_set( p, "type", "integer" );
213 if ( opt->min != INT_MIN )
214 mlt_properties_set_int( p, "minimum", (int) opt->min );
215 if ( opt->max != INT_MAX )
216 mlt_properties_set_int( p, "maximum", (int) opt->max );
217 #if LIBAVUTIL_VERSION_MAJOR > 50
218 mlt_properties_set_int( p, "default", (int) opt->default_val.dbl );
223 mlt_properties_set( p, "type", "string" );
224 mlt_properties_set( p, "format", "integer or keyword" );
227 case AV_OPT_TYPE_INT64:
228 mlt_properties_set( p, "type", "integer" );
229 mlt_properties_set( p, "format", "64-bit" );
230 if ( opt->min != INT64_MIN )
231 mlt_properties_set_int64( p, "minimum", (int64_t) opt->min );
232 if ( opt->max != INT64_MAX )
233 mlt_properties_set_int64( p, "maximum", (int64_t) opt->max );
234 #if LIBAVUTIL_VERSION_MAJOR > 50
235 mlt_properties_set_int64( p, "default", (int64_t) opt->default_val.dbl );
238 case AV_OPT_TYPE_FLOAT:
239 mlt_properties_set( p, "type", "float" );
240 if ( opt->min != FLT_MIN && opt->min != -340282346638528859811704183484516925440.0 )
241 mlt_properties_set_double( p, "minimum", opt->min );
242 if ( opt->max != FLT_MAX )
243 mlt_properties_set_double( p, "maximum", opt->max );
244 #if LIBAVUTIL_VERSION_MAJOR > 50
245 mlt_properties_set_double( p, "default", opt->default_val.dbl );
248 case AV_OPT_TYPE_DOUBLE:
249 mlt_properties_set( p, "type", "float" );
250 mlt_properties_set( p, "format", "double" );
251 if ( opt->min != DBL_MIN )
252 mlt_properties_set_double( p, "minimum", opt->min );
253 if ( opt->max != DBL_MAX )
254 mlt_properties_set_double( p, "maximum", opt->max );
255 #if LIBAVUTIL_VERSION_MAJOR > 50
256 mlt_properties_set_double( p, "default", opt->default_val.dbl );
259 case AV_OPT_TYPE_STRING:
260 mlt_properties_set( p, "type", "string" );
261 #if LIBAVUTIL_VERSION_MAJOR > 50
262 mlt_properties_set( p, "default", opt->default_val.str );
265 case AV_OPT_TYPE_RATIONAL:
266 mlt_properties_set( p, "type", "string" );
267 mlt_properties_set( p, "format", "numerator:denominator" );
269 case AV_OPT_TYPE_CONST:
271 mlt_properties_set( p, "type", "integer" );
272 mlt_properties_set( p, "format", "constant" );
275 // If the option belongs to a group (unit) and is not a constant (keyword value)
276 if ( opt->unit && opt->type != AV_OPT_TYPE_CONST )
278 // Create a 'values' sequence.
279 mlt_properties values = mlt_properties_new();
281 // Recurse to add constants in this group to the 'values' sequence.
282 add_parameters( values, object, req_flags, opt->unit, NULL );
283 if ( mlt_properties_count( values ) )
284 mlt_properties_set_data( p, "values", values, 0, (mlt_destructor) mlt_properties_close, NULL );
286 mlt_properties_close( values );
291 static mlt_properties avformat_metadata( mlt_service_type type, const char *id, void *data )
293 char file[ PATH_MAX ];
294 const char *service_type = NULL;
295 mlt_properties result = NULL;
297 // Convert the service type to a string.
301 service_type = "consumer";
304 service_type = "filter";
307 service_type = "producer";
309 case transition_type:
310 service_type = "transition";
315 // Load the yaml file
316 snprintf( file, PATH_MAX, "%s/avformat/%s_%s.yml", mlt_environment( "MLT_DATA" ), service_type, id );
317 result = mlt_properties_parse_yaml( file );
318 if ( result && ( type == consumer_type || type == producer_type ) )
320 // Annotate the yaml properties with AVOptions.
321 mlt_properties params = (mlt_properties) mlt_properties_get_data( result, "parameters", NULL );
322 AVFormatContext *avformat = avformat_alloc_context();
323 #if LIBAVCODEC_VERSION_INT > ((53<<16)+(8<<8)+0)
324 AVCodecContext *avcodec = avcodec_alloc_context3( NULL );
326 AVCodecContext *avcodec = avcodec_alloc_context();
328 int flags = ( type == consumer_type )? AV_OPT_FLAG_ENCODING_PARAM : AV_OPT_FLAG_DECODING_PARAM;
330 add_parameters( params, avformat, flags, NULL, NULL );
331 #if LIBAVFORMAT_VERSION_MAJOR >= 53
333 if ( type == producer_type )
335 AVInputFormat *f = NULL;
336 while ( ( f = av_iformat_next( f ) ) )
338 add_parameters( params, &f->priv_class, flags, NULL, f->name );
342 AVOutputFormat *f = NULL;
343 while ( ( f = av_oformat_next( f ) ) )
345 add_parameters( params, &f->priv_class, flags, NULL, f->name );
349 add_parameters( params, avcodec, flags, NULL, NULL );
350 #if LIBAVCODEC_VERSION_MAJOR >= 53
352 while ( ( c = av_codec_next( c ) ) )
354 add_parameters( params, &c->priv_class, flags, NULL, c->name );
366 MLT_REGISTER( consumer_type, "avformat", create_service );
367 MLT_REGISTER( producer_type, "avformat", create_service );
368 MLT_REGISTER( producer_type, "avformat-novalidate", create_service );
369 MLT_REGISTER_METADATA( consumer_type, "avformat", avformat_metadata, NULL );
370 MLT_REGISTER_METADATA( producer_type, "avformat", avformat_metadata, NULL );
373 MLT_REGISTER( filter_type, "avcolour_space", create_service );
374 MLT_REGISTER( filter_type, "avcolor_space", create_service );
375 MLT_REGISTER( filter_type, "avdeinterlace", create_service );
376 #if defined(FFUDIV) || (LIBAVCODEC_VERSION_INT < ((54<<16)+(26<<8)+0))
377 MLT_REGISTER( filter_type, "avresample", create_service );
379 MLT_REGISTER( filter_type, "swscale", create_service );