* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Charles Yates <charles.yates@pandora.be>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU 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 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 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <string.h>
#include <pthread.h>
+#include <limits.h>
+#include <float.h>
-#include <framework/mlt_factory.h>
-#include "producer_avformat.h"
-#include "consumer_avformat.h"
-#include "filter_avcolour_space.h"
-#include "filter_avdeinterlace.h"
-#include "filter_avresample.h"
+#include <framework/mlt.h>
+
+extern mlt_consumer consumer_avformat_init( mlt_profile profile, char *file );
+extern mlt_filter filter_avcolour_space_init( void *arg );
+extern mlt_filter filter_avdeinterlace_init( void *arg );
+extern mlt_filter filter_avresample_init( char *arg );
+extern mlt_filter filter_swscale_init( mlt_profile profile, char *arg );
+extern mlt_producer producer_avformat_init( mlt_profile profile, const char *service, char *file );
// ffmpeg Header files
-#include <avformat.h>
+#include <libavformat/avformat.h>
+#ifdef AVDEVICE
+#include <libavdevice/avdevice.h>
+#endif
+#if LIBAVCODEC_VERSION_MAJOR >= 53
+#include <libavutil/opt.h>
+#else
+#include <libavcodec/opt.h>
+#endif
// A static flag used to determine if avformat has been initialised
static int avformat_initialised = 0;
void avformat_destroy( void *ignore )
{
// Clean up
- av_free_static( );
+ // av_free_static( ); -XXX this is deprecated
// Destroy the mutex
pthread_mutex_destroy( &avformat_mutex );
avformat_initialised = 1;
pthread_mutex_init( &avformat_mutex, NULL );
av_register_all( );
+#ifdef AVDEVICE
+ avdevice_register_all();
+#endif
mlt_factory_register_for_clean_up( NULL, avformat_destroy );
- av_log_set_level( -1 );
+ av_log_set_level( mlt_log_get_level() );
}
}
-void *mlt_create_producer( char *id, void *arg )
-{
- avformat_init( );
- if ( !strcmp( id, "avformat" ) )
- return producer_avformat_init( arg );
- return NULL;
-}
-
-void *mlt_create_filter( char *id, void *arg )
+static void *create_service( mlt_profile profile, mlt_service_type type, const char *id, void *arg )
{
avformat_init( );
+#ifdef CODECS
+ if ( !strncmp( id, "avformat", 8 ) )
+ {
+ if ( type == producer_type )
+ return producer_avformat_init( profile, id, arg );
+ else if ( type == consumer_type )
+ return consumer_avformat_init( profile, arg );
+ }
+#endif
+#ifdef FILTERS
+ if ( !strcmp( id, "avcolor_space" ) )
+ return filter_avcolour_space_init( arg );
if ( !strcmp( id, "avcolour_space" ) )
return filter_avcolour_space_init( arg );
-#ifdef USE_MMX
if ( !strcmp( id, "avdeinterlace" ) )
return filter_avdeinterlace_init( arg );
-#endif
if ( !strcmp( id, "avresample" ) )
return filter_avresample_init( arg );
+#ifdef SWSCALE
+ if ( !strcmp( id, "swscale" ) )
+ return filter_swscale_init( profile, arg );
+#endif
+#endif
return NULL;
}
-void *mlt_create_transition( char *id, void *arg )
+static void add_parameters( mlt_properties params, void *object, int req_flags, const char *unit, const char *subclass )
{
- return NULL;
+ const AVOption *opt = NULL;
+
+ // For each AVOption on the AVClass object
+ while ( ( opt = av_next_option( object, opt ) ) )
+ {
+ // If matches flags and not a binary option (not supported by Mlt)
+ if ( !( opt->flags & req_flags ) || ( opt->type == FF_OPT_TYPE_BINARY ) )
+ continue;
+
+ // Ignore constants (keyword values)
+ if ( !unit && opt->type == FF_OPT_TYPE_CONST )
+ continue;
+ // When processing a groups of options (unit)...
+ // ...ignore non-constants
+ else if ( unit && opt->type != FF_OPT_TYPE_CONST )
+ continue;
+ // ...ignore constants not in this group
+ else if ( unit && opt->type == FF_OPT_TYPE_CONST && strcmp( unit, opt->unit ) )
+ continue;
+ // ..add constants to the 'values' sequence
+ else if ( unit && opt->type == FF_OPT_TYPE_CONST )
+ {
+ char key[20];
+ snprintf( key, 20, "%d", mlt_properties_count( params ) );
+ mlt_properties_set( params, key, opt->name );
+ continue;
+ }
+
+ // Create a map for this option.
+ mlt_properties p = mlt_properties_new();
+ char key[20];
+ snprintf( key, 20, "%d", mlt_properties_count( params ) );
+ // Add the map to the 'parameters' sequence.
+ mlt_properties_set_data( params, key, p, 0, (mlt_destructor) mlt_properties_close, NULL );
+
+ // Add the parameter metadata for this AVOption.
+ mlt_properties_set( p, "identifier", opt->name );
+ if ( opt->help )
+ {
+ if ( subclass )
+ {
+ char *s = malloc( strlen( opt->help ) + strlen( subclass ) + 4 );
+ strcpy( s, opt->help );
+ strcat( s, " (" );
+ strcat( s, subclass );
+ strcat( s, ")" );
+ mlt_properties_set( p, "description", s );
+ free( s );
+ }
+ else
+ mlt_properties_set( p, "description", opt->help );
+ }
+
+ switch ( opt->type )
+ {
+ case FF_OPT_TYPE_FLAGS:
+ mlt_properties_set( p, "type", "string" );
+ mlt_properties_set( p, "format", "flags" );
+ break;
+ case FF_OPT_TYPE_INT:
+ if ( !opt->unit )
+ {
+ mlt_properties_set( p, "type", "integer" );
+ if ( opt->min != INT_MIN )
+ mlt_properties_set_int( p, "minimum", (int) opt->min );
+ if ( opt->max != INT_MAX )
+ mlt_properties_set_int( p, "maximum", (int) opt->max );
+#if LIBAVUTIL_VERSION_MAJOR > 50
+ mlt_properties_set_int( p, "default", (int) opt->default_val.dbl );
+#endif
+ }
+ else
+ {
+ mlt_properties_set( p, "type", "string" );
+ mlt_properties_set( p, "format", "integer or keyword" );
+ }
+ break;
+ case FF_OPT_TYPE_INT64:
+ mlt_properties_set( p, "type", "integer" );
+ mlt_properties_set( p, "format", "64-bit" );
+ if ( opt->min != INT64_MIN )
+ mlt_properties_set_int64( p, "minimum", (int64_t) opt->min );
+ if ( opt->max != INT64_MAX )
+ mlt_properties_set_int64( p, "maximum", (int64_t) opt->max );
+#if LIBAVUTIL_VERSION_MAJOR > 50
+ mlt_properties_set_int64( p, "default", (int64_t) opt->default_val.dbl );
+#endif
+ break;
+ case FF_OPT_TYPE_FLOAT:
+ mlt_properties_set( p, "type", "float" );
+ if ( opt->min != FLT_MIN && opt->min != -340282346638528859811704183484516925440.0 )
+ mlt_properties_set_double( p, "minimum", opt->min );
+ if ( opt->max != FLT_MAX )
+ mlt_properties_set_double( p, "maximum", opt->max );
+#if LIBAVUTIL_VERSION_MAJOR > 50
+ mlt_properties_set_double( p, "default", opt->default_val.dbl );
+#endif
+ break;
+ case FF_OPT_TYPE_DOUBLE:
+ mlt_properties_set( p, "type", "float" );
+ mlt_properties_set( p, "format", "double" );
+ if ( opt->min != DBL_MIN )
+ mlt_properties_set_double( p, "minimum", opt->min );
+ if ( opt->max != DBL_MAX )
+ mlt_properties_set_double( p, "maximum", opt->max );
+#if LIBAVUTIL_VERSION_MAJOR > 50
+ mlt_properties_set_double( p, "default", opt->default_val.dbl );
+#endif
+ break;
+ case FF_OPT_TYPE_STRING:
+ mlt_properties_set( p, "type", "string" );
+#if LIBAVUTIL_VERSION_MAJOR > 50
+ mlt_properties_set( p, "default", opt->default_val.str );
+#endif
+ break;
+ case FF_OPT_TYPE_RATIONAL:
+ mlt_properties_set( p, "type", "string" );
+ mlt_properties_set( p, "format", "numerator:denominator" );
+ break;
+ case FF_OPT_TYPE_CONST:
+ default:
+ mlt_properties_set( p, "type", "integer" );
+ mlt_properties_set( p, "format", "constant" );
+ break;
+ }
+ // If the option belongs to a group (unit) and is not a constant (keyword value)
+ if ( opt->unit && opt->type != FF_OPT_TYPE_CONST )
+ {
+ // Create a 'values' sequence.
+ mlt_properties values = mlt_properties_new();
+
+ // Recurse to add constants in this group to the 'values' sequence.
+ add_parameters( values, object, req_flags, opt->unit, NULL );
+ if ( mlt_properties_count( values ) )
+ mlt_properties_set_data( p, "values", values, 0, (mlt_destructor) mlt_properties_close, NULL );
+ else
+ mlt_properties_close( values );
+ }
+ }
}
-void *mlt_create_consumer( char *id, void *arg )
+static mlt_properties avformat_metadata( mlt_service_type type, const char *id, void *data )
{
- avformat_init( );
- if ( !strcmp( id, "avformat" ) )
- return consumer_avformat_init( arg );
- return NULL;
+ char file[ PATH_MAX ];
+ const char *service_type = NULL;
+ mlt_properties result = NULL;
+
+ // Convert the service type to a string.
+ switch ( type )
+ {
+ case consumer_type:
+ service_type = "consumer";
+ break;
+ case filter_type:
+ service_type = "filter";
+ break;
+ case producer_type:
+ service_type = "producer";
+ break;
+ case transition_type:
+ service_type = "transition";
+ break;
+ default:
+ return NULL;
+ }
+ // Load the yaml file
+ snprintf( file, PATH_MAX, "%s/avformat/%s_%s.yml", mlt_environment( "MLT_DATA" ), service_type, id );
+ result = mlt_properties_parse_yaml( file );
+ if ( result && ( type == consumer_type || type == producer_type ) )
+ {
+ // Annotate the yaml properties with AVOptions.
+ mlt_properties params = (mlt_properties) mlt_properties_get_data( result, "parameters", NULL );
+ AVFormatContext *avformat = avformat_alloc_context();
+ AVCodecContext *avcodec = avcodec_alloc_context();
+ int flags = ( type == consumer_type )? AV_OPT_FLAG_ENCODING_PARAM : AV_OPT_FLAG_DECODING_PARAM;
+
+ add_parameters( params, avformat, flags, NULL, NULL );
+#if LIBAVFORMAT_VERSION_MAJOR >= 53
+ avformat_init();
+ if ( type == producer_type )
+ {
+ AVInputFormat *f = NULL;
+ while ( ( f = av_iformat_next( f ) ) )
+ if ( f->priv_class )
+ add_parameters( params, &f->priv_class, flags, NULL, f->name );
+ }
+ else
+ {
+ AVOutputFormat *f = NULL;
+ while ( ( f = av_oformat_next( f ) ) )
+ if ( f->priv_class )
+ add_parameters( params, &f->priv_class, flags, NULL, f->name );
+ }
+#endif
+
+ add_parameters( params, avcodec, flags, NULL, NULL );
+#if LIBAVCODEC_VERSION_MAJOR >= 53
+ AVCodec *c = NULL;
+ while ( ( c = av_codec_next( c ) ) )
+ if ( c->priv_class )
+ add_parameters( params, &c->priv_class, flags, NULL, c->name );
+#endif
+
+ av_free( avformat );
+ av_free( avcodec );
+ }
+ return result;
}
+MLT_REPOSITORY
+{
+#ifdef CODECS
+ MLT_REGISTER( consumer_type, "avformat", create_service );
+ MLT_REGISTER( producer_type, "avformat", create_service );
+ MLT_REGISTER( producer_type, "avformat-novalidate", create_service );
+ MLT_REGISTER_METADATA( consumer_type, "avformat", avformat_metadata, NULL );
+ MLT_REGISTER_METADATA( producer_type, "avformat", avformat_metadata, NULL );
+#endif
+#ifdef FILTERS
+ MLT_REGISTER( filter_type, "avcolour_space", create_service );
+ MLT_REGISTER( filter_type, "avcolor_space", create_service );
+ MLT_REGISTER( filter_type, "avdeinterlace", create_service );
+ MLT_REGISTER( filter_type, "avresample", create_service );
+#ifdef SWSCALE
+ MLT_REGISTER( filter_type, "swscale", create_service );
+#endif
+#endif
+}
projects / mlt / blobdiff