X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fcore%2Ffilter_data_show.c;h=89e1b945a782af25134d1ce53a66c56503e1964d;hb=bf3264b9e340ba5c11cbf59835a8af3db94e0cc2;hp=b16f8fe40c33effe306e1ff0da7fe05c57789345;hpb=702e73b84d90830062ebe07ba01b72ad59d48d93;p=melted diff --git a/src/modules/core/filter_data_show.c b/src/modules/core/filter_data_show.c index b16f8fe..89e1b94 100644 --- a/src/modules/core/filter_data_show.c +++ b/src/modules/core/filter_data_show.c @@ -3,19 +3,19 @@ * Copyright (C) 2004-2005 Ushodaya Enterprises Limited * Author: Charles Yates * - * 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 "filter_data.h" @@ -83,6 +83,34 @@ static mlt_filter obtain_filter( mlt_filter filter, char *type ) return result; } +/** Retrieve medatata value +*/ + +const char* metadata_value(mlt_properties properties, char* name) +{ + if (name == NULL) return "-"; + char *meta = malloc( strlen(name) + 18 ); + sprintf( meta, "meta.attr.%s.markup", name); + return mlt_properties_get( properties, meta); +} + +/** Convert frames to Timecode +*/ + +const char* frame_to_timecode( int frames , int fps) +{ + char *res = malloc(12); + if (fps == 0) return "-"; + int seconds = frames / (int) fps; + frames = frames % ((int) fps); + int minutes = seconds / 60; + seconds = seconds % 60; + int hours = minutes / 60; + minutes = minutes % 60; + sprintf(res, "%.2d:%.2d:%.2d:%.2d", hours, minutes, seconds, frames); + return res; +} + /** Process the frame for the requested type */ @@ -100,9 +128,6 @@ static int process_feed( mlt_properties feed, mlt_filter filter, mlt_frame frame // Fetch the filter associated to this type mlt_filter requested = mlt_properties_get_data( filter_properties, type, NULL ); - // Calculate the length of the feed - int length = mlt_properties_get_int( feed, "out" ) - mlt_properties_get_int( feed, "in" ) + 1; - // If it doesn't exist, then create it now if ( requested == NULL ) { @@ -121,6 +146,18 @@ static int process_feed( mlt_properties feed, mlt_filter filter, mlt_frame frame static char *prefix = "properties."; int len = strlen( prefix ); + // Determine if this is an absolute or relative feed + int absolute = mlt_properties_get_int( feed, "absolute" ); + + // Make do with what we have + int length = !absolute ? + mlt_properties_get_int( feed, "out" ) - mlt_properties_get_int( feed, "in" ) + 1 : + mlt_properties_get_int( feed, "out" ) + 1; + + // Repeat period + int period = mlt_properties_get_int( properties, "period" ); + period = period == 0 ? 1 : period; + // Pass properties from feed into requested for ( i = 0; i < mlt_properties_count( properties ); i ++ ) { @@ -130,21 +167,53 @@ static int process_feed( mlt_properties feed, mlt_filter filter, mlt_frame frame { if ( !strncmp( name + len, "length[", 7 ) ) { - int period = mlt_properties_get_int( properties, "period" ); - period = period == 0 ? 1 : period; - mlt_properties_set_position( properties, key, length / period ); + mlt_properties_set_position( properties, key, ( length - period ) / period ); } else { char *value = mlt_properties_get( feed, name + len ); - if ( value != NULL ) - mlt_properties_set( properties, key, value ); + if ( value != NULL ) { + // check for metadata keywords in metadata markup if user requested so + if ( mlt_properties_get_int( filter_properties, "dynamic" ) == 1 && !strcmp( name + strlen( name ) - 6, "markup") ) + { + // Find keywords which should be surrounded by '#', like: #title# + char* keywords = strtok ( value, "\\#" ); + char result[] = ""; + int ct = 0; + int fromStart = 0; + if ( value[0] == '\\' ) fromStart = 1; + + while (keywords != NULL) { + if (ct % 2 == fromStart) + strcat( result, keywords); + else if (!strcmp(keywords, "timecode")) { + // special case: replace #tc# with current frame timecode + int pos = mlt_properties_get_int( feed, "position" ); + const char *tc = frame_to_timecode(pos, mlt_properties_get_int( MLT_FRAME_PROPERTIES( frame ), "fps" )); + strcat( result, tc); + } + else { + // replace keyword with metadata value + const char * metavalue = metadata_value(MLT_FRAME_PROPERTIES( frame ), keywords); + if (metavalue == NULL) metavalue = "-"; + strcat( result, metavalue); + } + keywords = strtok ( NULL, "\\#" ); + ct++; + } + mlt_properties_set( properties, key, (char*) result ); + } + else mlt_properties_set( properties, key, value ); + } } } } // Set the original position on the frame - mlt_frame_set_position( frame, mlt_properties_get_int( feed, "position" ) - mlt_properties_get_int( feed, "in" ) ); + if ( absolute == 0 ) + mlt_frame_set_position( frame, mlt_properties_get_int( feed, "position" ) - mlt_properties_get_int( feed, "in" ) ); + else + mlt_frame_set_position( frame, mlt_properties_get_int( feed, "position" ) ); // Process the filter mlt_filter_process( requested, frame ); @@ -156,6 +225,44 @@ static int process_feed( mlt_properties feed, mlt_filter filter, mlt_frame frame return error; } +void process_queue( mlt_deque data_queue, mlt_frame frame, mlt_filter filter ) +{ + if ( data_queue != NULL ) + { + // Create a new queue for those that we can't handle + mlt_deque temp_queue = mlt_deque_init( ); + + // Iterate through each entry on the queue + while ( mlt_deque_peek_front( data_queue ) != NULL ) + { + // Get the data feed + mlt_properties feed = mlt_deque_pop_front( data_queue ); + + if ( mlt_properties_get( MLT_FILTER_PROPERTIES( filter ), "debug" ) != NULL ) + mlt_properties_debug( feed, mlt_properties_get( MLT_FILTER_PROPERTIES( filter ), "debug" ), stderr ); + + // Process the data feed... + if ( process_feed( feed, filter, frame ) == 0 ) + mlt_properties_close( feed ); + else + mlt_deque_push_back( temp_queue, feed ); + } + + // Now put the unprocessed feeds back on the stack + while ( mlt_deque_peek_front( temp_queue ) ) + { + // Get the data feed + mlt_properties feed = mlt_deque_pop_front( temp_queue ); + + // Put it back on the data queue + mlt_deque_push_back( data_queue, feed ); + } + + // Close the temporary queue + mlt_deque_close( temp_queue ); + } +} + /** Get the image. */ @@ -167,37 +274,11 @@ static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format // Get the frame properties mlt_properties frame_properties = MLT_FRAME_PROPERTIES( frame ); - // Fetch the data queue - mlt_deque data_queue = mlt_properties_get_data( frame_properties, "data_queue", NULL ); - - // Create a new queue for those that we can't handle - mlt_deque temp_queue = mlt_deque_init( ); - - // Iterate through each entry on the queue - while ( data_queue != NULL && mlt_deque_peek_front( data_queue ) != NULL ) - { - // Get the data feed - mlt_properties feed = mlt_deque_pop_front( data_queue ); - - // Process the data feed... - if ( process_feed( feed, filter, frame ) == 0 ) - mlt_properties_close( feed ); - else - mlt_deque_push_back( temp_queue, feed ); - } - - // Now put the unprocessed feeds back on the stack - while ( data_queue != NULL && mlt_deque_peek_front( temp_queue ) ) - { - // Get the data feed - mlt_properties feed = mlt_deque_pop_front( temp_queue ); - - // Put it back on the data queue - mlt_deque_push_back( data_queue, feed ); - } + // Track specific + process_queue( mlt_properties_get_data( frame_properties, "data_queue", NULL ), frame, filter ); - // Close the temporary queue - mlt_deque_close( temp_queue ); + // Global + process_queue( mlt_properties_get_data( frame_properties, "global_queue", NULL ), frame, filter ); // Need to get the image return mlt_frame_get_image( frame, image, format, width, height, 1 );