#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <ctype.h>
+
+#include <sys/types.h>
+#include <dirent.h>
/* ---------------- // Private Implementation // ---------------- */
int count;
int size;
mlt_properties mirror;
+ int ref_count;
}
property_list;
+/** Memory leak checks.
+*/
+
+//#define _MLT_PROPERTY_CHECKS_ 2
+
+#ifdef _MLT_PROPERTY_CHECKS_
+static int properties_created = 0;
+static int properties_destroyed = 0;
+#endif
+
/** Basic implementation.
*/
int mlt_properties_init( mlt_properties this, void *child )
{
- // NULL all methods
- memset( this, 0, sizeof( struct mlt_properties_s ) );
+ if ( this != NULL )
+ {
+#ifdef _MLT_PROPERTY_CHECKS_
+ // Increment number of properties created
+ properties_created ++;
+#endif
+
+ // NULL all methods
+ memset( this, 0, sizeof( struct mlt_properties_s ) );
- // Assign the child of the object
- this->child = child;
+ // Assign the child of the object
+ this->child = child;
- // Allocate the private structure
- this->private = calloc( sizeof( property_list ), 1 );
+ // Allocate the local structure
+ this->local = calloc( sizeof( property_list ), 1 );
- return this->private == NULL;
+ // Increment the ref count
+ ( ( property_list * )this->local )->ref_count = 1;
+ }
+
+ // Check that initialisation was successful
+ return this != NULL && this->local == NULL;
}
/** Constructor for stand alone object.
return this;
}
-static inline int generate_hash( char *name )
+/** Load properties from a file.
+*/
+
+mlt_properties mlt_properties_load( const char *filename )
+{
+ // Construct a standalone properties object
+ mlt_properties this = mlt_properties_new( );
+
+ if ( this != NULL )
+ {
+ // Open the file
+ FILE *file = fopen( filename, "r" );
+
+ // Load contents of file
+ if ( file != NULL )
+ {
+ // Temp string
+ char temp[ 1024 ];
+ char last[ 1024 ] = "";
+
+ // Read each string from the file
+ while( fgets( temp, 1024, file ) )
+ {
+ // Chomp the string
+ temp[ strlen( temp ) - 1 ] = '\0';
+
+ // Check if the line starts with a .
+ if ( temp[ 0 ] == '.' )
+ {
+ char temp2[ 1024 ];
+ sprintf( temp2, "%s%s", last, temp );
+ strcpy( temp, temp2 );
+ }
+ else if ( strchr( temp, '=' ) )
+ {
+ strcpy( last, temp );
+ *( strchr( last, '=' ) ) = '\0';
+ }
+
+ // Parse and set the property
+ if ( strcmp( temp, "" ) && temp[ 0 ] != '#' )
+ mlt_properties_parse( this, temp );
+ }
+
+ // Close the file
+ fclose( file );
+ }
+ }
+
+ // Return the pointer
+ return this;
+}
+
+static inline int generate_hash( const char *name )
{
int hash = 0;
int i = 1;
real producer.
*/
-static inline void mlt_properties_do_mirror( mlt_properties this, char *name )
+static inline void mlt_properties_do_mirror( mlt_properties this, const char *name )
{
- property_list *list = this->private;
- if ( list->mirror != NULL && strcmp( name, "in" ) && strcmp( name, "out" ) )
+ property_list *list = this->local;
+ if ( list->mirror != NULL )
{
char *value = mlt_properties_get( this, name );
if ( value != NULL )
}
}
-/** Allow the specification of a mirror.
+/** Maintain ref count to allow multiple uses of an mlt object.
+*/
+
+int mlt_properties_inc_ref( mlt_properties this )
+{
+ if ( this != NULL )
+ {
+ property_list *list = this->local;
+ return ++ list->ref_count;
+ }
+ return 0;
+}
+
+/** Maintain ref count to allow multiple uses of an mlt object.
+*/
+
+int mlt_properties_dec_ref( mlt_properties this )
+{
+ if ( this != NULL )
+ {
+ property_list *list = this->local;
+ return -- list->ref_count;
+ }
+ return 0;
+}
+
+/** Return the ref count of this object.
+*/
+
+int mlt_properties_ref_count( mlt_properties this )
+{
+ if ( this != NULL )
+ {
+ property_list *list = this->local;
+ return list->ref_count;
+ }
+ return 0;
+}
+
+/** Mirror properties set on 'this' to 'that'.
*/
void mlt_properties_mirror( mlt_properties this, mlt_properties that )
{
- property_list *list = this->private;
+ property_list *list = this->local;
list->mirror = that;
}
/** Pass all properties from 'that' that match the prefix to 'this' (excluding the prefix).
*/
-int mlt_properties_pass( mlt_properties this, mlt_properties that, char *prefix )
+int mlt_properties_pass( mlt_properties this, mlt_properties that, const char *prefix )
{
int count = mlt_properties_count( that );
int length = strlen( prefix );
/** Locate a property by name
*/
-static inline mlt_property mlt_properties_find( mlt_properties this, char *name )
+static inline mlt_property mlt_properties_find( mlt_properties this, const char *name )
{
- property_list *list = this->private;
+ property_list *list = this->local;
mlt_property value = NULL;
int key = generate_hash( name );
int i = list->hash[ key ] - 1;
/** Add a new property.
*/
-static mlt_property mlt_properties_add( mlt_properties this, char *name )
+static mlt_property mlt_properties_add( mlt_properties this, const char *name )
{
- property_list *list = this->private;
+ property_list *list = this->local;
int key = generate_hash( name );
// Check that we have space and resize if necessary
if ( list->count == list->size )
{
list->size += 50;
- list->name = realloc( list->name, list->size * sizeof( char * ) );
+ list->name = realloc( list->name, list->size * sizeof( const char * ) );
list->value = realloc( list->value, list->size * sizeof( mlt_property ) );
}
/** Fetch a property by name - this includes add if not found.
*/
-static mlt_property mlt_properties_fetch( mlt_properties this, char *name )
+static mlt_property mlt_properties_fetch( mlt_properties this, const char *name )
{
// Try to find an existing property first
mlt_property property = mlt_properties_find( this, name );
return property;
}
+/** Pass property 'name' from 'that' to 'this'
+* Who to blame: Zach <zachary.drew@gmail.com>
+*/
+
+void mlt_properties_pass_property( mlt_properties this, mlt_properties that, const char *name )
+{
+ // Make sure the source property isn't null.
+ mlt_property that_prop = mlt_properties_find( that, name );
+ if( that_prop == NULL )
+ return;
+
+ mlt_property_pass( mlt_properties_fetch( this, name ), that_prop );
+}
+
+/** Pass all properties from 'that' to 'this' as found in comma seperated 'list'.
+* Who to blame: Zach <zachary.drew@gmail.com>
+*/
+
+int mlt_properties_pass_list( mlt_properties this, mlt_properties that, const char *list )
+{
+ char *props = strdup( list );
+ char *ptr = props;
+ char *delim = " ,\t\n"; // Any combination of spaces, commas, tabs, and newlines
+ int count, done = 0;
+
+ while( !done )
+ {
+ count = strcspn( ptr, delim );
+
+ if( ptr[count] == '\0' )
+ done = 1;
+ else
+ ptr[count] = '\0'; // Make it a real string
+
+ mlt_properties_pass_property( this, that, ptr );
+
+ ptr += count + 1;
+ ptr += strspn( ptr, delim );
+ }
+
+ free( props );
+
+ return 0;
+}
+
+
/** Set the property.
*/
-int mlt_properties_set( mlt_properties this, char *name, char *value )
+int mlt_properties_set( mlt_properties this, const char *name, const char *value )
{
int error = 1;
mlt_property property = mlt_properties_fetch( this, name );
// Set it if not NULL
- if ( property != NULL )
+ if ( property == NULL )
+ {
+ fprintf( stderr, "Whoops - %s not found (should never occur)\n", name );
+ }
+ else if ( value == NULL )
{
error = mlt_property_set_string( property, value );
mlt_properties_do_mirror( this, name );
}
+ else if ( *value != '@' )
+ {
+ error = mlt_property_set_string( property, value );
+ mlt_properties_do_mirror( this, name );
+ }
+ else if ( value[ 0 ] == '@' )
+ {
+ int total = 0;
+ int current = 0;
+ char id[ 255 ];
+ char op = '+';
+
+ value ++;
+
+ while ( *value != '\0' )
+ {
+ int length = strcspn( value, "+-*/" );
+
+ // Get the identifier
+ strncpy( id, value, length );
+ id[ length ] = '\0';
+ value += length;
+
+ // Determine the value
+ if ( isdigit( id[ 0 ] ) )
+ current = atof( id );
+ else
+ current = mlt_properties_get_int( this, id );
+
+ // Apply the operation
+ switch( op )
+ {
+ case '+':
+ total += current;
+ break;
+ case '-':
+ total -= current;
+ break;
+ case '*':
+ total *= current;
+ break;
+ case '/':
+ total /= current;
+ break;
+ }
+
+ // Get the next op
+ op = *value != '\0' ? *value ++ : ' ';
+ }
+
+ error = mlt_property_set_int( property, total );
+ mlt_properties_do_mirror( this, name );
+ }
+
+ mlt_events_fire( this, "property-changed", name, NULL );
return error;
}
+/** Set or default the property.
+*/
+
+int mlt_properties_set_or_default( mlt_properties this, const char *name, const char *value, const char *def )
+{
+ return mlt_properties_set( this, name, value == NULL ? def : value );
+}
+
/** Get a string value by name.
*/
-char *mlt_properties_get( mlt_properties this, char *name )
+char *mlt_properties_get( mlt_properties this, const char *name )
{
mlt_property value = mlt_properties_find( this, name );
return value == NULL ? NULL : mlt_property_get_string( value );
char *mlt_properties_get_name( mlt_properties this, int index )
{
- property_list *list = this->private;
+ property_list *list = this->local;
if ( index >= 0 && index < list->count )
return list->name[ index ];
return NULL;
char *mlt_properties_get_value( mlt_properties this, int index )
{
- property_list *list = this->private;
+ property_list *list = this->local;
if ( index >= 0 && index < list->count )
return mlt_property_get_string( list->value[ index ] );
return NULL;
void *mlt_properties_get_data_at( mlt_properties this, int index, int *size )
{
- property_list *list = this->private;
+ property_list *list = this->local;
if ( index >= 0 && index < list->count )
return mlt_property_get_data( list->value[ index ], size );
return NULL;
int mlt_properties_count( mlt_properties this )
{
- property_list *list = this->private;
+ property_list *list = this->local;
return list->count;
}
/** Set a value by parsing a name=value string
*/
-int mlt_properties_parse( mlt_properties this, char *namevalue )
+int mlt_properties_parse( mlt_properties this, const char *namevalue )
{
char *name = strdup( namevalue );
- char *value = strdup( namevalue );
+ char *value = NULL;
int error = 0;
+ char *ptr = strchr( name, '=' );
- if ( strchr( name, '=' ) )
+ if ( ptr )
{
- *( strchr( name, '=' ) ) = '\0';
- strcpy( value, strchr( value, '=' ) + 1 );
+ *( ptr ++ ) = '\0';
+
+ if ( *ptr != '\"' )
+ {
+ value = strdup( ptr );
+ }
+ else
+ {
+ ptr ++;
+ value = strdup( ptr );
+ if ( value != NULL && value[ strlen( value ) - 1 ] == '\"' )
+ value[ strlen( value ) - 1 ] = '\0';
+ }
}
else
{
- strcpy( value, "" );
- }
-
- if ( strlen( value ) > 1 && value[ 0 ] == '\"' )
- {
- strcpy( value, value + 1 );
- if ( value[ strlen( value ) - 1 ] == '\"' )
- value[ strlen( value ) - 1 ] = '\0';
+ value = strdup( "" );
}
error = mlt_properties_set( this, name, value );
/** Get a value associated to the name.
*/
-int mlt_properties_get_int( mlt_properties this, char *name )
+int mlt_properties_get_int( mlt_properties this, const char *name )
{
mlt_property value = mlt_properties_find( this, name );
return value == NULL ? 0 : mlt_property_get_int( value );
/** Set a value associated to the name.
*/
-int mlt_properties_set_int( mlt_properties this, char *name, int value )
+int mlt_properties_set_int( mlt_properties this, const char *name, int value )
{
int error = 1;
mlt_properties_do_mirror( this, name );
}
+ mlt_events_fire( this, "property-changed", name, NULL );
+
+ return error;
+}
+
+/** Get a value associated to the name.
+*/
+
+int64_t mlt_properties_get_int64( mlt_properties this, const char *name )
+{
+ mlt_property value = mlt_properties_find( this, name );
+ return value == NULL ? 0 : mlt_property_get_int64( value );
+}
+
+/** Set a value associated to the name.
+*/
+
+int mlt_properties_set_int64( mlt_properties this, const char *name, int64_t value )
+{
+ int error = 1;
+
+ // Fetch the property to work with
+ mlt_property property = mlt_properties_fetch( this, name );
+
+ // Set it if not NULL
+ if ( property != NULL )
+ {
+ error = mlt_property_set_int64( property, value );
+ mlt_properties_do_mirror( this, name );
+ }
+
+ mlt_events_fire( this, "property-changed", name, NULL );
+
return error;
}
/** Get a value associated to the name.
*/
-double mlt_properties_get_double( mlt_properties this, char *name )
+double mlt_properties_get_double( mlt_properties this, const char *name )
{
mlt_property value = mlt_properties_find( this, name );
return value == NULL ? 0 : mlt_property_get_double( value );
/** Set a value associated to the name.
*/
-int mlt_properties_set_double( mlt_properties this, char *name, double value )
+int mlt_properties_set_double( mlt_properties this, const char *name, double value )
{
int error = 1;
mlt_properties_do_mirror( this, name );
}
+ mlt_events_fire( this, "property-changed", name, NULL );
+
return error;
}
/** Get a value associated to the name.
*/
-mlt_position mlt_properties_get_position( mlt_properties this, char *name )
+mlt_position mlt_properties_get_position( mlt_properties this, const char *name )
{
mlt_property value = mlt_properties_find( this, name );
return value == NULL ? 0 : mlt_property_get_position( value );
/** Set a value associated to the name.
*/
-int mlt_properties_set_position( mlt_properties this, char *name, mlt_position value )
+int mlt_properties_set_position( mlt_properties this, const char *name, mlt_position value )
{
int error = 1;
mlt_properties_do_mirror( this, name );
}
+ mlt_events_fire( this, "property-changed", name, NULL );
+
return error;
}
/** Get a value associated to the name.
*/
-void *mlt_properties_get_data( mlt_properties this, char *name, int *length )
+void *mlt_properties_get_data( mlt_properties this, const char *name, int *length )
{
mlt_property value = mlt_properties_find( this, name );
return value == NULL ? NULL : mlt_property_get_data( value, length );
/** Set a value associated to the name.
*/
-int mlt_properties_set_data( mlt_properties this, char *name, void *value, int length, mlt_destructor destroy, mlt_serialiser serialise )
+int mlt_properties_set_data( mlt_properties this, const char *name, void *value, int length, mlt_destructor destroy, mlt_serialiser serialise )
{
int error = 1;
if ( property != NULL )
error = mlt_property_set_data( property, value, length, destroy, serialise );
+ mlt_events_fire( this, "property-changed", name, NULL );
+
return error;
}
/** Rename a property.
*/
-int mlt_properties_rename( mlt_properties this, char *source, char *dest )
+int mlt_properties_rename( mlt_properties this, const char *source, const char *dest )
{
mlt_property value = mlt_properties_find( this, dest );
if ( value == NULL )
{
- property_list *list = this->private;
+ property_list *list = this->local;
int i = 0;
// Locate the item
void mlt_properties_dump( mlt_properties this, FILE *output )
{
- property_list *list = this->private;
+ property_list *list = this->local;
int i = 0;
for ( i = 0; i < list->count; i ++ )
- fprintf( stderr, "%s = %s\n", list->name[ i ], mlt_properties_get( this, list->name[ i ] ) );
+ if ( mlt_properties_get( this, list->name[ i ] ) != NULL )
+ fprintf( output, "%s=%s\n", list->name[ i ], mlt_properties_get( this, list->name[ i ] ) );
}
-/** Close the list.
+void mlt_properties_debug( mlt_properties this, const char *title, FILE *output )
+{
+ if ( output == NULL ) output = stderr;
+ fprintf( output, "%s: ", title );
+ if ( this != NULL )
+ {
+ property_list *list = this->local;
+ int i = 0;
+ fprintf( output, "[ ref=%d", list->ref_count );
+ for ( i = 0; i < list->count; i ++ )
+ if ( mlt_properties_get( this, list->name[ i ] ) != NULL )
+ fprintf( output, ", %s=%s", list->name[ i ], mlt_properties_get( this, list->name[ i ] ) );
+ else
+ fprintf( output, ", %s=%p", list->name[ i ], mlt_properties_get_data( this, list->name[ i ], NULL ) );
+ fprintf( output, " ]" );
+ }
+ fprintf( output, "\n" );
+}
+
+int mlt_properties_save( mlt_properties this, const char *filename )
+{
+ int error = 1;
+ FILE *f = fopen( filename, "w" );
+ if ( f != NULL )
+ {
+ mlt_properties_dump( this, f );
+ fclose( f );
+ error = 0;
+ }
+ return error;
+}
+
+/* This is a very basic cross platform fnmatch replacement - it will fail in
+** many cases, but for the basic *.XXX and YYY*.XXX, it will work ok.
*/
-void mlt_properties_close( mlt_properties this )
+static int mlt_fnmatch( const char *wild, const char *file )
{
- property_list *list = this->private;
- int index = 0;
+ int f = 0;
+ int w = 0;
- // Clean up names and values
- for ( index = list->count - 1; index >= 0; index -- )
+ while( f < strlen( file ) && w < strlen( wild ) )
{
- free( list->name[ index ] );
- mlt_property_close( list->value[ index ] );
+ if ( wild[ w ] == '*' )
+ {
+ w ++;
+ if ( w == strlen( wild ) )
+ f = strlen( file );
+ while ( f != strlen( file ) && tolower( file[ f ] ) != tolower( wild[ w ] ) )
+ f ++;
+ }
+ else if ( wild[ w ] == '?' || tolower( file[ f ] ) == tolower( wild[ w ] ) )
+ {
+ f ++;
+ w ++;
+ }
+ else if ( wild[ 0 ] == '*' )
+ {
+ w = 0;
+ }
+ else
+ {
+ return 0;
+ }
}
- // Clear up the list
- free( list->name );
- free( list->value );
- free( list );
+ return strlen( file ) == f && strlen( wild ) == w;
+}
+
+static int mlt_compare( const void *this, const void *that )
+{
+ return strcmp( mlt_property_get_string( *( mlt_property * )this ), mlt_property_get_string( *( mlt_property * )that ) );
+}
+
+/* Obtains an optionally sorted list of the files found in a directory with a specific wild card.
+ * Entries in the list have a numeric name (running from 0 to count - 1). Only values change
+ * position if sort is enabled. Designed to be posix compatible (linux, os/x, mingw etc).
+ */
+
+int mlt_properties_dir_list( mlt_properties this, const char *dirname, const char *pattern, int sort )
+{
+ DIR *dir = opendir( dirname );
+
+ if ( dir )
+ {
+ char key[ 20 ];
+ struct dirent *de = readdir( dir );
+ char fullname[ 1024 ];
+ while( de != NULL )
+ {
+ sprintf( key, "%d", mlt_properties_count( this ) );
+ snprintf( fullname, 1024, "%s/%s", dirname, de->d_name );
+ if ( de->d_name[ 0 ] != '.' && mlt_fnmatch( pattern, de->d_name ) )
+ mlt_properties_set( this, key, fullname );
+ de = readdir( dir );
+ }
- // Free this now if this has no child
- if ( this->child == NULL )
- free( this );
+ closedir( dir );
+ }
+
+ if ( sort && mlt_properties_count( this ) )
+ {
+ property_list *list = this->local;
+ qsort( list->value, mlt_properties_count( this ), sizeof( mlt_property ), mlt_compare );
+ }
+
+ return mlt_properties_count( this );
+}
+
+/** Close the list.
+*/
+
+void mlt_properties_close( mlt_properties this )
+{
+ if ( this != NULL && mlt_properties_dec_ref( this ) <= 0 )
+ {
+ if ( this->close != NULL )
+ {
+ this->close( this->close_object );
+ }
+ else
+ {
+ property_list *list = this->local;
+ int index = 0;
+
+#if _MLT_PROPERTY_CHECKS_ == 1
+ // Show debug info
+ mlt_properties_debug( this, "Closing", stderr );
+#endif
+
+#ifdef _MLT_PROPERTY_CHECKS_
+ // Increment destroyed count
+ properties_destroyed ++;
+
+ // Show current stats - these should match when the app is closed
+ fprintf( stderr, "Created %d, destroyed %d\n", properties_created, properties_destroyed );
+#endif
+
+ // Clean up names and values
+ for ( index = list->count - 1; index >= 0; index -- )
+ {
+ free( list->name[ index ] );
+ mlt_property_close( list->value[ index ] );
+ }
+
+ // Clear up the list
+ free( list->name );
+ free( list->value );
+ free( list );
+
+ // Free this now if this has no child
+ if ( this->child == NULL )
+ free( this );
+ }
+ }
}
projects / melted / blobdiff