research.m1stereo.tv/gitweb/ - melted/blob - src/inigo/inigo.c

   1 #include <stdio.h>
   2 #include <stdlib.h>
   3 #include <string.h>
   4
   5 #include <framework/mlt.h>
   6
   7 #include "io.h"
   8
   9 mlt_producer create_producer( char *file )
  10 {
  11         mlt_producer result = NULL;
  12
  13         // 1st Line preferences
  14         if ( strstr( file, ".mpg" ) )
  15                 result = mlt_factory_producer( "mcmpeg", file );
  16         else if ( strstr( file, ".mpeg" ) )
  17                 result = mlt_factory_producer( "mcmpeg", file );
  18         else if ( strstr( file, ".dv" ) )
  19                 result = mlt_factory_producer( "mcdv", file );
  20         else if ( strstr( file, ".dif" ) )
  21                 result = mlt_factory_producer( "mcdv", file );
  22         else if ( strstr( file, ".jpg" ) )
  23                 result = mlt_factory_producer( "pixbuf", file );
  24         else if ( strstr( file, ".JPG" ) )
  25                 result = mlt_factory_producer( "pixbuf", file );
  26         else if ( strstr( file, ".jpeg" ) )
  27                 result = mlt_factory_producer( "pixbuf", file );
  28         else if ( strstr( file, ".png" ) )
  29                 result = mlt_factory_producer( "pixbuf", file );
  30
  31         // 2nd Line fallbacks
  32         if ( result == NULL && strstr( file, ".dv" ) )
  33                 result = mlt_factory_producer( "libdv", file );
  34         else if ( result == NULL && strstr( file, ".dif" ) )
  35                 result = mlt_factory_producer( "libdv", file );
  36
  37         // 3rd line fallbacks
  38         if ( result == NULL )
  39                 result = mlt_factory_producer( "ffmpeg", file );
  40
  41         return result;
  42 }
  43
  44 void transport_action( mlt_producer producer, char *value )
  45 {
  46         mlt_properties properties = mlt_producer_properties( producer );
  47         mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL );
  48
  49         if ( strlen( value ) == 1 )
  50         {
  51                 switch( value[ 0 ] )
  52                 {
  53                         case 'q':
  54                                 mlt_properties_set_int( properties, "done", 1 );
  55                                 break;
  56                         case '0':
  57                                 mlt_producer_set_speed( producer, 1 );
  58                                 mlt_producer_seek( producer, 0 );
  59                                 break;
  60                         case '1':
  61                                 mlt_producer_set_speed( producer, -10 );
  62                                 break;
  63                         case '2':
  64                                 mlt_producer_set_speed( producer, -5 );
  65                                 break;
  66                         case '3':
  67                                 mlt_producer_set_speed( producer, -2 );
  68                                 break;
  69                         case '4':
  70                                 mlt_producer_set_speed( producer, -1 );
  71                                 break;
  72                         case '5':
  73                                 mlt_producer_set_speed( producer, 0 );
  74                                 break;
  75                         case '6':
  76                                 mlt_producer_set_speed( producer, 1 );
  77                                 break;
  78                         case '7':
  79                                 mlt_producer_set_speed( producer, 2 );
  80                                 break;
  81                         case '8':
  82                                 mlt_producer_set_speed( producer, 5 );
  83                                 break;
  84                         case '9':
  85                                 mlt_producer_set_speed( producer, 10 );
  86                                 break;
  87                         case 'j':
  88                                 if ( multitrack != NULL )
  89                                 {
  90                                         mlt_timecode time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, -1 );
  91                                         mlt_producer_seek( producer, time );
  92                                 }
  93                                 break;
  94                         case 'k':
  95                                 if ( multitrack != NULL )
  96                                 {
  97                                         mlt_timecode time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 0 );
  98                                         mlt_producer_seek( producer, time );
  99                                 }
 100                                 break;
 101                         case 'l':
 102                                 if ( multitrack != NULL )
 103                                 {
 104                                         mlt_timecode time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 1 );
 105                                         mlt_producer_seek( producer, time );
 106                                 }
 107                                 break;
 108                 }
 109         }
 110 }
 111
 112 mlt_consumer create_consumer( char *id, mlt_producer producer )
 113 {
 114         char *arg = strchr( id, ':' );
 115         if ( arg != NULL )
 116                 *arg ++ = '\0';
 117         mlt_consumer consumer = mlt_factory_consumer( id, arg );
 118         if ( consumer != NULL )
 119         {
 120                 mlt_properties properties = mlt_consumer_properties( consumer );
 121                 mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
 122                 mlt_properties_set_data( properties, "transport_producer", producer, 0, NULL, NULL );
 123         }
 124         return consumer;
 125 }
 126
 127 void track_service( mlt_field field, void *service, mlt_destructor destructor )
 128 {
 129         mlt_properties properties = mlt_field_properties( field );
 130         int registered = mlt_properties_get_int( properties, "registered" );
 131         char *key = mlt_properties_get( properties, "registered" );
 132         mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
 133         mlt_properties_set_int( properties, "registered", ++ registered );
 134 }
 135
 136 mlt_filter create_filter( mlt_field field, char *id, int track )
 137 {
 138         char *arg = strchr( id, ':' );
 139         if ( arg != NULL )
 140                 *arg ++ = '\0';
 141         mlt_filter filter = mlt_factory_filter( id, arg );
 142         if ( filter != NULL )
 143         {
 144                 mlt_field_plant_filter( field, filter, track );
 145                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 146         }
 147         return filter;
 148 }
 149
 150 void set_properties( mlt_properties properties, char *namevalue )
 151 {
 152         mlt_properties_parse( properties, namevalue );
 153 }
 154
 155 void transport( mlt_producer producer )
 156 {
 157         mlt_properties properties = mlt_producer_properties( producer );
 158
 159         term_init( );
 160
 161         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 162         fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5=  0| |6=  1| |7=  2| |8=  5| |9= 10|\n" );
 163         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 164
 165         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 166         fprintf( stderr, "|             j = previous, k = restart current, l = next             |\n" );
 167         fprintf( stderr, "|                       0 = restart, q = quit                         |\n" );
 168         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 169
 170         while( mlt_properties_get_int( properties, "done" ) == 0 )
 171         {
 172                 int value = term_read( );
 173                 if ( value != -1 )
 174                         transport_action( producer, ( char * )&value );
 175         }
 176 }
 177
 178 int main( int argc, char **argv )
 179 {
 180         int i;
 181         int track = 0;
 182         mlt_consumer consumer = NULL;
 183         mlt_producer producer = NULL;
 184         mlt_playlist playlist = NULL;
 185         mlt_properties group = mlt_properties_new( );
 186         mlt_properties properties = group;
 187         mlt_field field = mlt_field_init( );
 188         mlt_properties field_properties = mlt_field_properties( field );
 189         mlt_multitrack multitrack = mlt_field_multitrack( field );
 190
 191         // Construct the factory
 192         mlt_factory_init( getenv( "MLT_REPOSITORY" ) );
 193
 194         // Set up containers
 195         playlist = mlt_playlist_init( );
 196
 197         // We need to track the number of registered filters
 198         mlt_properties_set_int( field_properties, "registered", 0 );
 199
 200         // Parse the arguments
 201         for ( i = 1; i < argc; i ++ )
 202         {
 203                 if ( !strcmp( argv[ i ], "-consumer" ) )
 204                 {
 205                         consumer = create_consumer( argv[ ++ i ], mlt_multitrack_producer( multitrack ) );
 206                         if ( consumer != NULL )
 207                         {
 208                                 properties = mlt_consumer_properties( consumer );
 209                                 mlt_properties_inherit( properties, group );
 210                         }
 211                 }
 212                 else if ( !strcmp( argv[ i ], "-group" ) )
 213                 {
 214                         if ( mlt_properties_count( group ) != 0 )
 215                         {
 216                                 mlt_properties_close( group );
 217                                 group = mlt_properties_new( );
 218                         }
 219                         if ( group != NULL )
 220                                 properties = group;
 221                 }
 222                 else if ( !strcmp( argv[ i ], "-filter" ) )
 223                 {
 224                         mlt_filter filter = create_filter( field, argv[ ++ i ], 0 );
 225                         if ( filter != NULL )
 226                         {
 227                                 properties = mlt_filter_properties( filter );
 228                                 mlt_properties_inherit( properties, group );
 229                         }
 230                 }
 231                 else if ( !strcmp( argv[ i ], "-blank" ) )
 232                 {
 233                         if ( producer != NULL )
 234                                 mlt_playlist_append( playlist, producer );
 235                         producer = NULL;
 236                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 237                 }
 238                 else if ( !strstr( argv[ i ], "=" ) )
 239                 {
 240                         if ( producer != NULL )
 241                                 mlt_playlist_append( playlist, producer );
 242                         producer = create_producer( argv[ i ] );
 243                         if ( producer != NULL )
 244                         {
 245                                 properties = mlt_producer_properties( producer );
 246                                 mlt_properties_inherit( properties, group );
 247                         }
 248                 }
 249                 else
 250                 {
 251                         set_properties( properties, argv[ i ] );
 252                 }
 253         }
 254
 255         // Connect producer to playlist
 256         if ( producer != NULL )
 257                 mlt_playlist_append( playlist, producer );
 258
 259
 260         // We must have a producer at this point
 261         if ( mlt_playlist_count( playlist ) > 0 )
 262         {
 263                 // If we have no consumer, default to sdl
 264                 if ( consumer == NULL )
 265                 {
 266                         consumer = create_consumer( "sdl", mlt_multitrack_producer( multitrack ) );
 267                         if ( consumer != NULL )
 268                         {
 269                                 properties = mlt_consumer_properties( consumer );
 270                                 mlt_properties_inherit( properties, group );
 271                         }
 272                 }
 273
 274                 // Connect multitrack to producer
 275                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 276
 277                 // Connect consumer to tractor
 278                 mlt_consumer_connect( consumer, mlt_field_service( field ) );
 279
 280                 // Transport functionality
 281                 transport( mlt_multitrack_producer( multitrack ) );
 282
 283                 // Close the services
 284                 mlt_consumer_close( consumer );
 285                 mlt_producer_close( producer );
 286         }
 287         else
 288         {
 289                 fprintf( stderr, "Usage: inigo [ -group [ name=value ]* ]\n"
 290                                                  "             [ -consumer id[:arg] [ name=value ]* ]\n"
 291                                          "             [ -filter id[:arg] [ name=value ] * ]\n"
 292                                          "             [ producer [ name=value ] * ]+\n" );
 293         }
 294
 295         // Close the field
 296         mlt_field_close( field );
 297
 298         // Close the group
 299         mlt_properties_close( group );
 300
 301         // Close the factory
 302         mlt_factory_close( );
 303
 304         return 0;
 305 }