-SUBDIRS = src/framework src/valerie src/modules # src/miracle src/humperdink
+SUBDIRS = src/framework src/modules src/inigo src/valerie # src/miracle src/humperdink
all clean dist-clean depend install:
list='$(SUBDIRS)'; \
+ docs - Location of all text and source format
documentation
+ src - All project source is provided here
- + framework - The media framework - this code is 100% posix
- and as such contain no implementations
- requiring additional libraries
- + modules - All components are defined here with a
- subdirectory for each dependency
- + bluefish - Bluefish dependent modules and test code
+ + framework - The media framework
+ + modules - All components are defined here
+ + core - Non-dependent MLT service
+ + dv - libdv services
+ ffmpeg - ffmpeg dependent modules and test code
- + mainconcept - mainconcept dependent modules and test code
- + SDL - SDL dependent modules and test code
+ + sdl - SDL dependent modules and test code
+ + bluefish - Bluefish dependent modules and test code (*)
+ + mainconcept - mainconcept dependent modules and test code (*)
+ + inigo - A media playing test application
+ valerie - Client API to access the server
+ miracle - The server implementation
+ + tests - Reserved for regression and unit tests
Additional subdirectories may be nested below those shown and should be
documented in their parent or here.
+ (*) Not posted to CVS due to licensing issues.
+
Configuration
-------------
./configure --disable-[mod] - do not compile specified module(s)
./configure --[other] - pass through to children
+ NB: This script must be run to register new services after a CVS checkout
+ or subsequent update.
+
Compilation
-----------
$prefix/bin/. This is linked against the framework shared object and
posix libs but not against any of the modules.
- The modules produce a shared object per module and a text file containing
- a list of modules provided by this build. These are installed in
- $prefix/share/mlt/. It is at the discretion of the module to install
+ The modules produce a shared object per module and update text files
+ containing a list of modules provided by this build. These are installed
+ in $prefix/share/mlt/. It is at the discretion of the module to install
additional support files.
To allow the development of external components, mlt-client-config and
#include <framework/file.h>
- This allows migration of source between external and internal
- modules. The configuration and Makefile template requirements will require
+ This allows migration of source between external and internal modules.
+ The configuration and Makefile template requirements will require
attention though.
Summary
[ $help = 1 ] && show_help
# Iterate through each of the components
-for i in framework modules valerie miracle humperdink
+for i in framework modules inigo valerie miracle humperdink
do
if [ -x src/$i/configure ]
then
-SUBDIRS = src/framework src/valerie src/modules # src/miracle src/humperdink
+SUBDIRS = src/framework src/modules src/inigo src/valerie # src/miracle src/humperdink
all clean dist-clean depend install:
list='$(SUBDIRS)'; \
+ docs - Location of all text and source format
documentation
+ src - All project source is provided here
- + framework - The media framework - this code is 100% posix
- and as such contain no implementations
- requiring additional libraries
- + modules - All components are defined here with a
- subdirectory for each dependency
- + bluefish - Bluefish dependent modules and test code
+ + framework - The media framework
+ + modules - All components are defined here
+ + core - Non-dependent MLT service
+ + dv - libdv services
+ ffmpeg - ffmpeg dependent modules and test code
- + mainconcept - mainconcept dependent modules and test code
- + SDL - SDL dependent modules and test code
+ + sdl - SDL dependent modules and test code
+ + bluefish - Bluefish dependent modules and test code (*)
+ + mainconcept - mainconcept dependent modules and test code (*)
+ + inigo - A media playing test application
+ valerie - Client API to access the server
+ miracle - The server implementation
+ + tests - Reserved for regression and unit tests
Additional subdirectories may be nested below those shown and should be
documented in their parent or here.
+ (*) Not posted to CVS due to licensing issues.
+
Configuration
-------------
./configure --disable-[mod] - do not compile specified module(s)
./configure --[other] - pass through to children
+ NB: This script must be run to register new services after a CVS checkout
+ or subsequent update.
+
Compilation
-----------
$prefix/bin/. This is linked against the framework shared object and
posix libs but not against any of the modules.
- The modules produce a shared object per module and a text file containing
- a list of modules provided by this build. These are installed in
- $prefix/share/mlt/. It is at the discretion of the module to install
+ The modules produce a shared object per module and update text files
+ containing a list of modules provided by this build. These are installed
+ in $prefix/share/mlt/. It is at the discretion of the module to install
additional support files.
To allow the development of external components, mlt-client-config and
#include <framework/file.h>
- This allows migration of source between external and internal
- modules. The configuration and Makefile template requirements will require
+ This allows migration of source between external and internal modules.
+ The configuration and Makefile template requirements will require
attention though.
Summary
[ $help = 1 ] && show_help
# Iterate through each of the components
-for i in framework modules valerie miracle humperdink
+for i in framework modules inigo valerie miracle humperdink
do
if [ -x src/$i/configure ]
then
--- /dev/null
+export MLT_REPOSITORY=`pwd`/src/modules
+
+export LD_LIBRARY_PATH=`pwd`/src/framework:\
+`pwd`/src/modules/bluefish:\
+`pwd`/../bluefish/lib:\
+`pwd`/../mpeg_sdk_demo/bin:\
+`pwd`/../dv_sdk
+
+export PATH=$PATH:`pwd`/src/inigo:`pwd`/src/miracle
+
return ret;
}
+void *memfill( void *dst, void *src, int l, int elements )
+{
+ int i = 0;
+ for ( i = 0; i < elements; i ++ )
+ dst = memcpy( dst, src, l ) + l;
+ return dst;
+}
+
void mlt_resize_yuv422( uint8_t *output, int owidth, int oheight, uint8_t *input, int iwidth, int iheight )
{
// Calculate strides
int ostride = owidth * 2;
// Coordinates (0,0 is middle of output)
- int y, x;
+ int y;
// Calculate ranges
int out_x_range = owidth / 2;
int out_y_range = oheight / 2;
- int in_x_range = iwidth / 2;
- int in_y_range = iheight / 2;
+ int in_x_range = iwidth / 2 < out_x_range ? iwidth / 2 : out_x_range;
+ int in_y_range = iheight / 2 < out_y_range ? iheight / 2 : out_y_range;
// Output pointers
uint8_t *out_line = output;
uint8_t *out_ptr;
// Calculate a middle and possibly invalid pointer in the input
- uint8_t *in_middle = input + istride * in_y_range + in_x_range * 2;
- int in_line = - out_y_range * istride - out_x_range * 2;
- int in_ptr;
+ uint8_t *in_middle = input + istride * ( iheight / 2 ) + ( iwidth / 2 ) * 2;
+ int in_line = - in_y_range * istride - in_x_range * 2;
+
+ uint8_t black[ 2 ] = { 16, 128 };
// Loop for the entirety of our output height.
for ( y = - out_y_range; y < out_y_range ; y ++ )
// Start at the beginning of the line
out_ptr = out_line;
- // Point the start of the current input line (NB: can be out of range)
- in_ptr = in_line;
-
- // Loop for the entirety of our output row.
- for ( x = - out_x_range; x < out_x_range; x ++ )
- {
- // Check if x and y are in the valid input range.
- if ( abs( x ) < in_x_range && abs( y ) < in_y_range )
- {
- // We're in the input range for this row.
- *out_ptr ++ = *( in_middle + in_ptr ++ );
- *out_ptr ++ = *( in_middle + in_ptr ++ );
- }
- else
- {
- // We're not in the input range for this row.
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
- in_ptr += 2;
- }
- }
+ if ( abs( y ) < iheight / 2 )
+ {
+ // Fill the outer part with black
+ out_ptr = memfill( out_ptr, black, 2, out_x_range - in_x_range );
+
+ // We're in the input range for this row.
+ memcpy( out_ptr, in_middle + in_line, 4 * in_x_range );
+ out_ptr += 4 * in_x_range;
+
+ // Fill the outer part with black
+ out_ptr = memfill( out_ptr, black, 2, out_x_range - in_x_range );
+
+ // Move to next input line
+ in_line += istride;
+ }
+ else
+ {
+ // Fill whole line with black
+ out_ptr = memfill( out_ptr, black, 2, owidth );
+ }
// Move to next output line
out_line += ostride;
-
- // Move to next input line
- in_line += istride;
}
}
in_line = in_middle + dy * istride;
// Loop for the entirety of our output row.
- for ( x = - out_x_range; x < out_x_range; x += 2 )
+ for ( x = - out_x_range; x < out_x_range; x += 1 )
{
// Calculated the derived x
dx = scale_width * x;
if ( abs( dx ) < in_x_range && abs( dy ) < in_y_range )
{
// We're in the input range for this row.
- in_ptr = in_line + ( dx >> 1 ) * 4;
- *out_ptr ++ = *in_ptr ++;
- *out_ptr ++ = *in_ptr ++;
+ in_ptr = in_line + ( dx >> 1 ) * 4 - 2 * ( x & 1 );
*out_ptr ++ = *in_ptr ++;
*out_ptr ++ = *in_ptr ++;
}
// We're not in the input range for this row.
*out_ptr ++ = 16;
*out_ptr ++ = 128;
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
}
}
// Inherit it from the producer
fps = mlt_producer_get_fps( producer );
}
- else
+ else if ( fps != mlt_properties_get_double( mlt_producer_properties( producer ), "fps" ) )
{
// Generate a warning for now - the following attempt to fix may fail
fprintf( stderr, "Warning: fps mismatch on playlist producer %d\n", this->count );
--- /dev/null
+TARGET = inigo
+
+OBJS = inigo.o \
+ io.o
+
+CFLAGS = -I .. -Wall -g -D_FILE_OFFSET_BITS=64 -pthread -rdynamic
+
+LDFLAGS = -L ../framework -lmlt
+
+SRCS := $(OBJS:.o=.c)
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+ $(CC) -o $@ $(OBJS) $(LDFLAGS)
+
+depend: $(SRCS)
+ $(CC) -MM $(CFLAGS) $^ 1>.depend
+
+dist-clean: clean
+ rm -f .depend
+
+clean:
+ rm -f $(OBJS) $(TARGET)
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <framework/mlt.h>
+
+#include "io.h"
+
+mlt_producer create_producer( char *file )
+{
+ mlt_producer result = NULL;
+
+ // 1st Line preferences
+ if ( strstr( file, ".mpg" ) )
+ result = mlt_factory_producer( "mcmpeg", file );
+ else if ( strstr( file, ".mpeg" ) )
+ result = mlt_factory_producer( "mcmpeg", file );
+ else if ( strstr( file, ".dv" ) )
+ result = mlt_factory_producer( "mcdv", file );
+ else if ( strstr( file, ".dif" ) )
+ result = mlt_factory_producer( "mcdv", file );
+ else if ( strstr( file, ".jpg" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".JPG" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".jpeg" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".png" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+
+ // 2nd Line fallbacks
+ if ( result == NULL && strstr( file, ".dv" ) )
+ result = mlt_factory_producer( "libdv", file );
+ else if ( result == NULL && strstr( file, ".dif" ) )
+ result = mlt_factory_producer( "libdv", file );
+
+ // 3rd line fallbacks
+ if ( result == NULL )
+ result = mlt_factory_producer( "ppm", file );
+
+ return result;
+}
+
+void transport_action( mlt_producer producer, char *value )
+{
+ mlt_properties properties = mlt_producer_properties( producer );
+
+ switch( value[ 0 ] )
+ {
+ case 'q':
+ mlt_properties_set_int( properties, "done", 1 );
+ break;
+ case '0':
+ mlt_producer_set_speed( producer, 1 );
+ mlt_producer_seek( producer, 0 );
+ break;
+ case '1':
+ mlt_producer_set_speed( producer, -5 );
+ break;
+ case '2':
+ mlt_producer_set_speed( producer, -2.5 );
+ break;
+ case '3':
+ mlt_producer_set_speed( producer, -1 );
+ break;
+ case '4':
+ mlt_producer_set_speed( producer, -0.5 );
+ break;
+ case '5':
+ mlt_producer_set_speed( producer, 0 );
+ break;
+ case '6':
+ mlt_producer_set_speed( producer, 0.5 );
+ break;
+ case '7':
+ mlt_producer_set_speed( producer, 1 );
+ break;
+ case '8':
+ mlt_producer_set_speed( producer, 2.5 );
+ break;
+ case '9':
+ mlt_producer_set_speed( producer, 5 );
+ break;
+ }
+}
+
+mlt_consumer create_consumer( char *id, mlt_producer producer )
+{
+ char *arg = strchr( id, ':' );
+ if ( arg != NULL )
+ *arg ++ = '\0';
+ mlt_consumer consumer = mlt_factory_consumer( id, arg );
+ if ( consumer != NULL )
+ {
+ mlt_properties properties = mlt_consumer_properties( consumer );
+ mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
+ mlt_properties_set_data( properties, "transport_producer", producer, 0, NULL, NULL );
+ }
+ return consumer;
+}
+
+void track_service( mlt_field field, void *service, mlt_destructor destructor )
+{
+ mlt_properties properties = mlt_field_properties( field );
+ int registered = mlt_properties_get_int( properties, "registered" );
+ char *key = mlt_properties_get( properties, "registered" );
+ mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
+ mlt_properties_set_int( properties, "registered", ++ registered );
+}
+
+mlt_filter create_filter( mlt_field field, char *id, int track )
+{
+ char *arg = strchr( id, ':' );
+ if ( arg != NULL )
+ *arg ++ = '\0';
+ mlt_filter filter = mlt_factory_filter( id, arg );
+ if ( filter != NULL )
+ {
+ mlt_field_plant_filter( field, filter, track );
+ track_service( field, filter, ( mlt_destructor )mlt_filter_close );
+ }
+ return filter;
+}
+
+void set_properties( mlt_service service, char *namevalue )
+{
+ mlt_properties properties = mlt_service_properties( service );
+ mlt_properties_parse( properties, namevalue );
+}
+
+void transport( mlt_producer producer )
+{
+ mlt_properties properties = mlt_producer_properties( producer );
+
+ term_init( );
+ fprintf( stderr, "Press 'q' to continue\n" );
+ while( mlt_properties_get_int( properties, "done" ) == 0 )
+ {
+ int value = term_read( );
+ if ( value != -1 )
+ transport_action( producer, ( char * )&value );
+ }
+}
+
+int main( int argc, char **argv )
+{
+ int i;
+ mlt_service service = NULL;
+ mlt_consumer consumer = NULL;
+ mlt_multitrack multitrack = NULL;
+ mlt_producer producer = NULL;
+ mlt_playlist playlist = NULL;
+ mlt_field field = NULL;
+
+ // Construct the factory
+ mlt_factory_init( getenv( "MLT_REPOSITORY" ) );
+
+ // Set up containers
+ playlist = mlt_playlist_init( );
+
+ // Construct the field
+ field = mlt_field_init( );
+
+ // We need to track the number of registered filters
+ mlt_properties properties = mlt_field_properties( field );
+ mlt_properties_set_int( properties, "registered", 0 );
+
+ // Get the multitrack from the field
+ multitrack = mlt_field_multitrack( field );
+
+ // Parse the arguments
+ for ( i = 1; i < argc; i ++ )
+ {
+ if ( !strcmp( argv[ i ], "-consumer" ) )
+ {
+ consumer = create_consumer( argv[ ++ i ], mlt_multitrack_producer( multitrack ) );
+ if ( consumer != NULL )
+ service = mlt_consumer_service( consumer );
+ }
+ else if ( !strcmp( argv[ i ], "-filter" ) )
+ {
+ mlt_filter filter = create_filter( field, argv[ ++ i ], 0 );
+ if ( filter != NULL )
+ service = mlt_filter_service( filter );
+ }
+ else if ( !strstr( argv[ i ], "=" ) )
+ {
+ if ( producer != NULL )
+ mlt_playlist_append( playlist, producer );
+ producer = create_producer( argv[ i ] );
+ if ( producer != NULL )
+ service = mlt_producer_service( producer );
+ }
+ else
+ {
+ set_properties( service, argv[ i ] );
+ }
+ }
+
+ // If we have no consumer, default to sdl
+ if ( consumer == NULL )
+ consumer = create_consumer( "sdl", mlt_multitrack_producer( multitrack ) );
+
+ // Connect producer to playlist
+ if ( producer != NULL )
+ mlt_playlist_append( playlist, producer );
+
+ // Connect multitrack to producer
+ mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), 0 );
+
+ // Connect consumer to tractor
+ mlt_consumer_connect( consumer, mlt_field_service( field ) );
+
+ // Transport functionality
+ transport( mlt_multitrack_producer( multitrack ) );
+
+ // Close the services
+ mlt_consumer_close( consumer );
+ mlt_field_close( field );
+ mlt_producer_close( producer );
+
+ // Close the factory
+ mlt_factory_close( );
+
+ return 0;
+}
--- /dev/null
+/*
+ * io.c -- dv1394d client demo input/output
+ * Copyright (C) 2002-2003 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 program 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.
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* System header files */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <termios.h>
+#include <unistd.h>
+
+/* Application header files */
+#include "io.h"
+
+char *chomp( char *input )
+{
+ if ( input != NULL )
+ {
+ int length = strlen( input );
+ if ( length && input[ length - 1 ] == '\n' )
+ input[ length - 1 ] = '\0';
+ if ( length > 1 && input[ length - 2 ] == '\r' )
+ input[ length - 2 ] = '\0';
+ }
+ return input;
+}
+
+char *trim( char *input )
+{
+ if ( input != NULL )
+ {
+ int length = strlen( input );
+ int first = 0;
+ while( first < length && isspace( input[ first ] ) )
+ first ++;
+ memmove( input, input + first, length - first + 1 );
+ length = length - first;
+ while ( length > 0 && isspace( input[ length - 1 ] ) )
+ input[ -- length ] = '\0';
+ }
+ return input;
+}
+
+char *strip_quotes( char *input )
+{
+ if ( input != NULL )
+ {
+ char *ptr = strrchr( input, '\"' );
+ if ( ptr != NULL )
+ *ptr = '\0';
+ if ( input[ 0 ] == '\"' )
+ strcpy( input, input + 1 );
+ }
+ return input;
+}
+
+char *get_string( char *output, int maxlength, char *use )
+{
+ char *value = NULL;
+ strcpy( output, use );
+ if ( trim( chomp( fgets( output, maxlength, stdin ) ) ) != NULL )
+ {
+ if ( !strcmp( output, "" ) )
+ strcpy( output, use );
+ value = output;
+ }
+ return value;
+}
+
+int *get_int( int *output, int use )
+{
+ int *value = NULL;
+ char temp[ 132 ];
+ *output = use;
+ if ( trim( chomp( fgets( temp, 132, stdin ) ) ) != NULL )
+ {
+ if ( strcmp( temp, "" ) )
+ *output = atoi( temp );
+ value = output;
+ }
+ return value;
+}
+
+/** This stores the previous settings
+*/
+
+static struct termios oldtty;
+static int mode = 0;
+
+/** This is called automatically on application exit to restore the
+ previous tty settings.
+*/
+
+void term_exit(void)
+{
+ if ( mode == 1 )
+ {
+ tcsetattr( 0, TCSANOW, &oldtty );
+ mode = 0;
+ }
+}
+
+/** Init terminal so that we can grab keys without blocking.
+*/
+
+void term_init( )
+{
+ struct termios tty;
+
+ tcgetattr( 0, &tty );
+ oldtty = tty;
+
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
+ tty.c_oflag |= OPOST;
+ tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+ tty.c_cflag &= ~(CSIZE|PARENB);
+ tty.c_cflag |= CS8;
+ tty.c_cc[ VMIN ] = 1;
+ tty.c_cc[ VTIME ] = 0;
+
+ tcsetattr( 0, TCSANOW, &tty );
+
+ mode = 1;
+
+ atexit( term_exit );
+}
+
+/** Check for a keypress without blocking infinitely.
+ Returns: ASCII value of keypress or -1 if no keypress detected.
+*/
+
+int term_read( )
+{
+ int n = 1;
+ unsigned char ch;
+ struct timeval tv;
+ fd_set rfds;
+
+ FD_ZERO( &rfds );
+ FD_SET( 0, &rfds );
+ tv.tv_sec = 0;
+ tv.tv_usec = 250;
+ n = select( 1, &rfds, NULL, NULL, &tv );
+ if (n > 0)
+ {
+ n = read( 0, &ch, 1 );
+ tcflush( 0, TCIFLUSH );
+ if (n == 1)
+ return ch;
+ return n;
+ }
+ return -1;
+}
+
+char get_keypress( )
+{
+ char value = '\0';
+ int pressed = 0;
+
+ fflush( stdout );
+
+ term_init( );
+ while ( ( pressed = term_read( ) ) == -1 ) ;
+ term_exit( );
+
+ value = (char)pressed;
+
+ return value;
+}
+
+void wait_for_any_key( char *message )
+{
+ if ( message == NULL )
+ printf( "Press any key to continue: " );
+ else
+ printf( "%s", message );
+
+ get_keypress( );
+
+ printf( "\n\n" );
+}
+
+void beep( )
+{
+ printf( "%c", 7 );
+ fflush( stdout );
+}
--- /dev/null
+/*
+ * io.h -- dv1394d client demo input/output
+ * Copyright (C) 2002-2003 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 program 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.
+ *
+ * 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.
+ */
+
+#ifndef _DEMO_IO_H_
+#define _DEMO_IO_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+extern char *chomp( char * );
+extern char *trim( char * );
+extern char *strip_quotes( char * );
+extern char *get_string( char *, int, char * );
+extern int *get_int( int *, int );
+extern void term_init( );
+extern int term_read( );
+extern void term_exit( );
+extern char get_keypress( );
+extern void wait_for_any_key( char * );
+extern void beep( );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
/** Constructor for the filter.
*/
-mlt_filter filter_resize_init( void *arg )
+mlt_filter filter_resize_init( char *arg )
{
mlt_filter this = calloc( sizeof( struct mlt_filter_s ), 1 );
if ( mlt_filter_init( this, this ) == 0 )
{
this->process = filter_process;
- mlt_properties_set( mlt_filter_properties( this ), "scale", "off" );
+ if ( arg != NULL )
+ mlt_properties_set( mlt_filter_properties( this ), "scale", arg );
+ else
+ mlt_properties_set( mlt_filter_properties( this ), "scale", "off" );
}
return this;
}
#include <framework/mlt_filter.h>
-extern mlt_filter filter_resize_init( void *arg );
+extern mlt_filter filter_resize_init( char *arg );
#endif
producer->get_frame = producer_get_frame;
producer->close = producer_close;
- if ( command == NULL )
- this->command = strdup( "image2raw -n -a -r 3 -ppm /usr/share/pixmaps/*.png" );
- else
+ if ( command != NULL )
this->command = strdup( command );
- this->pipe = popen( this->command, "r" );
-
return producer;
}
free( this );
return 0;
}
+static void producer_ppm_position( producer_ppm this, uint64_t requested )
+{
+ if ( requested != this->expected )
+ {
+ if ( this->video != NULL )
+ pclose( this->video );
+ this->video = NULL;
+ if ( this->audio != NULL )
+ pclose( this->audio );
+ this->audio = NULL;
+ }
+
+ // This is the next frame we expect
+ this->expected = mlt_producer_frame( &this->parent ) + 1;
+}
+
+FILE *producer_ppm_run_video( producer_ppm this )
+{
+ if ( this->video == NULL )
+ {
+ if ( this->command == NULL )
+ {
+ this->video = popen( "image2raw -n -a -r 3 -ppm /usr/share/pixmaps/*.png", "r" );
+ }
+ else
+ {
+ char command[ 1024 ];
+ float fps = mlt_producer_get_fps( &this->parent );
+ float position = mlt_producer_position( &this->parent );
+ sprintf( command, "ffmpeg -i \"%s\" -ss %f -f imagepipe -r %f -img ppm -", this->command, position, fps );
+ this->video = popen( command, "r" );
+ }
+ }
+ return this->video;
+}
+
+FILE *producer_ppm_run_audio( producer_ppm this )
+{
+ if ( this->audio == NULL )
+ {
+ if ( this->command != NULL )
+ {
+ char command[ 1024 ];
+ float position = mlt_producer_position( &this->parent );
+ sprintf( command, "ffmpeg -i \"%s\" -ss %f -f s16le -ar 48000 -ac 2 -", this->command, position );
+ this->audio = popen( command, "r" );
+ }
+ }
+ return this->audio;
+}
+
+
+static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
+{
+ // Get the frames properties
+ mlt_properties properties = mlt_frame_properties( this );
+
+ FILE *pipe = mlt_properties_get_data( properties, "audio.pipe", NULL );
+
+ *frequency = 48000;
+ *channels = 2;
+ *samples = 1920;
+
+ // Size
+ int size = *samples * *channels * 2;
+
+ // Allocate an image
+ *buffer = malloc( size );
+
+ // Read it
+ fread( *buffer, size, 1, pipe );
+
+ // Pass the data on the frame properties
+ mlt_properties_set_data( properties, "audio", *buffer, size, free, NULL );
+
+ return 0;
+}
+
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
producer_ppm this = producer->child;
// Construct a test frame
*frame = mlt_frame_init( );
- // Scan the header
- if ( fscanf( this->pipe, "P6\n%d %d\n255\n", &width, &height ) == 2 )
- {
- // Get the frames properties
- mlt_properties properties = mlt_frame_properties( *frame );
+ // Are we at the position expected?
+ producer_ppm_position( this, mlt_producer_frame( producer ) );
+
+ // Open the pipe
+ FILE *video = producer_ppm_run_video( this );
+
+ // Open the audio pipe
+ FILE *audio = producer_ppm_run_audio( this );
+
+ // Get the frames properties
+ mlt_properties properties = mlt_frame_properties( *frame );
+ // Read the video
+ if ( video != NULL && fscanf( video, "P6\n%d %d\n255\n", &width, &height ) == 2 )
+ {
// Allocate an image
uint8_t *image = malloc( width * height * 3 );
// Read it
- fread( image, width * height * 3, 1, this->pipe );
+ fread( image, width * height * 3, 1, video );
// Pass the data on the frame properties
mlt_properties_set_data( properties, "image", image, width * height * 3, free, NULL );
mlt_frame_push_get_image( *frame, producer_get_image );
}
+ // Read the audio
+ if ( audio != NULL )
+ {
+ // Set the audio pipe
+ mlt_properties_set_data( properties, "audio.pipe", audio, 0, NULL, NULL );
+
+ // Hmm - register audio callback
+ ( *frame )->get_audio = producer_get_audio;
+ }
+
// Update timecode on the frame we're creating
mlt_frame_set_timecode( *frame, mlt_producer_position( producer ) );
static void producer_close( mlt_producer parent )
{
producer_ppm this = parent->child;
- pclose( this->pipe );
+ if ( this->video )
+ pclose( this->video );
+ if ( this->audio )
+ pclose( this->audio );
free( this->command );
parent->close = NULL;
mlt_producer_close( parent );
{
struct mlt_producer_s parent;
char *command;
- FILE *pipe;
+ FILE *video;
+ FILE *audio;
+ uint64_t expected;
};
extern mlt_producer producer_ppm_init( void *command );
request.freq = frequency;
request.format = AUDIO_S16;
request.channels = channels;
- request.samples = 1024;
+ request.samples = 512;
request.callback = sdl_fill_audio;
request.userdata = (void *)this;
if ( SDL_OpenAudio( &request, NULL ) < 0 )
// Construct the field
field = mlt_field_init( );
+
+ // We need to track the number of registered filters
mlt_properties properties = mlt_field_properties( field );
mlt_properties_set_int( properties, "registered", 0 );
--- /dev/null
+export MLT_REPOSITORY=`pwd`/src/modules
+
+export LD_LIBRARY_PATH=`pwd`/src/framework:\
+`pwd`/src/modules/bluefish:\
+`pwd`/../bluefish/lib:\
+`pwd`/../mpeg_sdk_demo/bin:\
+`pwd`/../dv_sdk
+
+export PATH=$PATH:`pwd`/src/inigo:`pwd`/src/miracle
+
return ret;
}
+void *memfill( void *dst, void *src, int l, int elements )
+{
+ int i = 0;
+ for ( i = 0; i < elements; i ++ )
+ dst = memcpy( dst, src, l ) + l;
+ return dst;
+}
+
void mlt_resize_yuv422( uint8_t *output, int owidth, int oheight, uint8_t *input, int iwidth, int iheight )
{
// Calculate strides
int ostride = owidth * 2;
// Coordinates (0,0 is middle of output)
- int y, x;
+ int y;
// Calculate ranges
int out_x_range = owidth / 2;
int out_y_range = oheight / 2;
- int in_x_range = iwidth / 2;
- int in_y_range = iheight / 2;
+ int in_x_range = iwidth / 2 < out_x_range ? iwidth / 2 : out_x_range;
+ int in_y_range = iheight / 2 < out_y_range ? iheight / 2 : out_y_range;
// Output pointers
uint8_t *out_line = output;
uint8_t *out_ptr;
// Calculate a middle and possibly invalid pointer in the input
- uint8_t *in_middle = input + istride * in_y_range + in_x_range * 2;
- int in_line = - out_y_range * istride - out_x_range * 2;
- int in_ptr;
+ uint8_t *in_middle = input + istride * ( iheight / 2 ) + ( iwidth / 2 ) * 2;
+ int in_line = - in_y_range * istride - in_x_range * 2;
+
+ uint8_t black[ 2 ] = { 16, 128 };
// Loop for the entirety of our output height.
for ( y = - out_y_range; y < out_y_range ; y ++ )
// Start at the beginning of the line
out_ptr = out_line;
- // Point the start of the current input line (NB: can be out of range)
- in_ptr = in_line;
-
- // Loop for the entirety of our output row.
- for ( x = - out_x_range; x < out_x_range; x ++ )
- {
- // Check if x and y are in the valid input range.
- if ( abs( x ) < in_x_range && abs( y ) < in_y_range )
- {
- // We're in the input range for this row.
- *out_ptr ++ = *( in_middle + in_ptr ++ );
- *out_ptr ++ = *( in_middle + in_ptr ++ );
- }
- else
- {
- // We're not in the input range for this row.
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
- in_ptr += 2;
- }
- }
+ if ( abs( y ) < iheight / 2 )
+ {
+ // Fill the outer part with black
+ out_ptr = memfill( out_ptr, black, 2, out_x_range - in_x_range );
+
+ // We're in the input range for this row.
+ memcpy( out_ptr, in_middle + in_line, 4 * in_x_range );
+ out_ptr += 4 * in_x_range;
+
+ // Fill the outer part with black
+ out_ptr = memfill( out_ptr, black, 2, out_x_range - in_x_range );
+
+ // Move to next input line
+ in_line += istride;
+ }
+ else
+ {
+ // Fill whole line with black
+ out_ptr = memfill( out_ptr, black, 2, owidth );
+ }
// Move to next output line
out_line += ostride;
-
- // Move to next input line
- in_line += istride;
}
}
in_line = in_middle + dy * istride;
// Loop for the entirety of our output row.
- for ( x = - out_x_range; x < out_x_range; x += 2 )
+ for ( x = - out_x_range; x < out_x_range; x += 1 )
{
// Calculated the derived x
dx = scale_width * x;
if ( abs( dx ) < in_x_range && abs( dy ) < in_y_range )
{
// We're in the input range for this row.
- in_ptr = in_line + ( dx >> 1 ) * 4;
- *out_ptr ++ = *in_ptr ++;
- *out_ptr ++ = *in_ptr ++;
+ in_ptr = in_line + ( dx >> 1 ) * 4 - 2 * ( x & 1 );
*out_ptr ++ = *in_ptr ++;
*out_ptr ++ = *in_ptr ++;
}
// We're not in the input range for this row.
*out_ptr ++ = 16;
*out_ptr ++ = 128;
- *out_ptr ++ = 16;
- *out_ptr ++ = 128;
}
}
// Inherit it from the producer
fps = mlt_producer_get_fps( producer );
}
- else
+ else if ( fps != mlt_properties_get_double( mlt_producer_properties( producer ), "fps" ) )
{
// Generate a warning for now - the following attempt to fix may fail
fprintf( stderr, "Warning: fps mismatch on playlist producer %d\n", this->count );
--- /dev/null
+TARGET = inigo
+
+OBJS = inigo.o \
+ io.o
+
+CFLAGS = -I .. -Wall -g -D_FILE_OFFSET_BITS=64 -pthread -rdynamic
+
+LDFLAGS = -L ../framework -lmlt
+
+SRCS := $(OBJS:.o=.c)
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+ $(CC) -o $@ $(OBJS) $(LDFLAGS)
+
+depend: $(SRCS)
+ $(CC) -MM $(CFLAGS) $^ 1>.depend
+
+dist-clean: clean
+ rm -f .depend
+
+clean:
+ rm -f $(OBJS) $(TARGET)
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif
--- /dev/null
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <framework/mlt.h>
+
+#include "io.h"
+
+mlt_producer create_producer( char *file )
+{
+ mlt_producer result = NULL;
+
+ // 1st Line preferences
+ if ( strstr( file, ".mpg" ) )
+ result = mlt_factory_producer( "mcmpeg", file );
+ else if ( strstr( file, ".mpeg" ) )
+ result = mlt_factory_producer( "mcmpeg", file );
+ else if ( strstr( file, ".dv" ) )
+ result = mlt_factory_producer( "mcdv", file );
+ else if ( strstr( file, ".dif" ) )
+ result = mlt_factory_producer( "mcdv", file );
+ else if ( strstr( file, ".jpg" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".JPG" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".jpeg" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+ else if ( strstr( file, ".png" ) )
+ result = mlt_factory_producer( "pixbuf", file );
+
+ // 2nd Line fallbacks
+ if ( result == NULL && strstr( file, ".dv" ) )
+ result = mlt_factory_producer( "libdv", file );
+ else if ( result == NULL && strstr( file, ".dif" ) )
+ result = mlt_factory_producer( "libdv", file );
+
+ // 3rd line fallbacks
+ if ( result == NULL )
+ result = mlt_factory_producer( "ppm", file );
+
+ return result;
+}
+
+void transport_action( mlt_producer producer, char *value )
+{
+ mlt_properties properties = mlt_producer_properties( producer );
+
+ switch( value[ 0 ] )
+ {
+ case 'q':
+ mlt_properties_set_int( properties, "done", 1 );
+ break;
+ case '0':
+ mlt_producer_set_speed( producer, 1 );
+ mlt_producer_seek( producer, 0 );
+ break;
+ case '1':
+ mlt_producer_set_speed( producer, -5 );
+ break;
+ case '2':
+ mlt_producer_set_speed( producer, -2.5 );
+ break;
+ case '3':
+ mlt_producer_set_speed( producer, -1 );
+ break;
+ case '4':
+ mlt_producer_set_speed( producer, -0.5 );
+ break;
+ case '5':
+ mlt_producer_set_speed( producer, 0 );
+ break;
+ case '6':
+ mlt_producer_set_speed( producer, 0.5 );
+ break;
+ case '7':
+ mlt_producer_set_speed( producer, 1 );
+ break;
+ case '8':
+ mlt_producer_set_speed( producer, 2.5 );
+ break;
+ case '9':
+ mlt_producer_set_speed( producer, 5 );
+ break;
+ }
+}
+
+mlt_consumer create_consumer( char *id, mlt_producer producer )
+{
+ char *arg = strchr( id, ':' );
+ if ( arg != NULL )
+ *arg ++ = '\0';
+ mlt_consumer consumer = mlt_factory_consumer( id, arg );
+ if ( consumer != NULL )
+ {
+ mlt_properties properties = mlt_consumer_properties( consumer );
+ mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
+ mlt_properties_set_data( properties, "transport_producer", producer, 0, NULL, NULL );
+ }
+ return consumer;
+}
+
+void track_service( mlt_field field, void *service, mlt_destructor destructor )
+{
+ mlt_properties properties = mlt_field_properties( field );
+ int registered = mlt_properties_get_int( properties, "registered" );
+ char *key = mlt_properties_get( properties, "registered" );
+ mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
+ mlt_properties_set_int( properties, "registered", ++ registered );
+}
+
+mlt_filter create_filter( mlt_field field, char *id, int track )
+{
+ char *arg = strchr( id, ':' );
+ if ( arg != NULL )
+ *arg ++ = '\0';
+ mlt_filter filter = mlt_factory_filter( id, arg );
+ if ( filter != NULL )
+ {
+ mlt_field_plant_filter( field, filter, track );
+ track_service( field, filter, ( mlt_destructor )mlt_filter_close );
+ }
+ return filter;
+}
+
+void set_properties( mlt_service service, char *namevalue )
+{
+ mlt_properties properties = mlt_service_properties( service );
+ mlt_properties_parse( properties, namevalue );
+}
+
+void transport( mlt_producer producer )
+{
+ mlt_properties properties = mlt_producer_properties( producer );
+
+ term_init( );
+ fprintf( stderr, "Press 'q' to continue\n" );
+ while( mlt_properties_get_int( properties, "done" ) == 0 )
+ {
+ int value = term_read( );
+ if ( value != -1 )
+ transport_action( producer, ( char * )&value );
+ }
+}
+
+int main( int argc, char **argv )
+{
+ int i;
+ mlt_service service = NULL;
+ mlt_consumer consumer = NULL;
+ mlt_multitrack multitrack = NULL;
+ mlt_producer producer = NULL;
+ mlt_playlist playlist = NULL;
+ mlt_field field = NULL;
+
+ // Construct the factory
+ mlt_factory_init( getenv( "MLT_REPOSITORY" ) );
+
+ // Set up containers
+ playlist = mlt_playlist_init( );
+
+ // Construct the field
+ field = mlt_field_init( );
+
+ // We need to track the number of registered filters
+ mlt_properties properties = mlt_field_properties( field );
+ mlt_properties_set_int( properties, "registered", 0 );
+
+ // Get the multitrack from the field
+ multitrack = mlt_field_multitrack( field );
+
+ // Parse the arguments
+ for ( i = 1; i < argc; i ++ )
+ {
+ if ( !strcmp( argv[ i ], "-consumer" ) )
+ {
+ consumer = create_consumer( argv[ ++ i ], mlt_multitrack_producer( multitrack ) );
+ if ( consumer != NULL )
+ service = mlt_consumer_service( consumer );
+ }
+ else if ( !strcmp( argv[ i ], "-filter" ) )
+ {
+ mlt_filter filter = create_filter( field, argv[ ++ i ], 0 );
+ if ( filter != NULL )
+ service = mlt_filter_service( filter );
+ }
+ else if ( !strstr( argv[ i ], "=" ) )
+ {
+ if ( producer != NULL )
+ mlt_playlist_append( playlist, producer );
+ producer = create_producer( argv[ i ] );
+ if ( producer != NULL )
+ service = mlt_producer_service( producer );
+ }
+ else
+ {
+ set_properties( service, argv[ i ] );
+ }
+ }
+
+ // If we have no consumer, default to sdl
+ if ( consumer == NULL )
+ consumer = create_consumer( "sdl", mlt_multitrack_producer( multitrack ) );
+
+ // Connect producer to playlist
+ if ( producer != NULL )
+ mlt_playlist_append( playlist, producer );
+
+ // Connect multitrack to producer
+ mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), 0 );
+
+ // Connect consumer to tractor
+ mlt_consumer_connect( consumer, mlt_field_service( field ) );
+
+ // Transport functionality
+ transport( mlt_multitrack_producer( multitrack ) );
+
+ // Close the services
+ mlt_consumer_close( consumer );
+ mlt_field_close( field );
+ mlt_producer_close( producer );
+
+ // Close the factory
+ mlt_factory_close( );
+
+ return 0;
+}
--- /dev/null
+/*
+ * io.c -- dv1394d client demo input/output
+ * Copyright (C) 2002-2003 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 program 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.
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/* System header files */
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#include <termios.h>
+#include <unistd.h>
+
+/* Application header files */
+#include "io.h"
+
+char *chomp( char *input )
+{
+ if ( input != NULL )
+ {
+ int length = strlen( input );
+ if ( length && input[ length - 1 ] == '\n' )
+ input[ length - 1 ] = '\0';
+ if ( length > 1 && input[ length - 2 ] == '\r' )
+ input[ length - 2 ] = '\0';
+ }
+ return input;
+}
+
+char *trim( char *input )
+{
+ if ( input != NULL )
+ {
+ int length = strlen( input );
+ int first = 0;
+ while( first < length && isspace( input[ first ] ) )
+ first ++;
+ memmove( input, input + first, length - first + 1 );
+ length = length - first;
+ while ( length > 0 && isspace( input[ length - 1 ] ) )
+ input[ -- length ] = '\0';
+ }
+ return input;
+}
+
+char *strip_quotes( char *input )
+{
+ if ( input != NULL )
+ {
+ char *ptr = strrchr( input, '\"' );
+ if ( ptr != NULL )
+ *ptr = '\0';
+ if ( input[ 0 ] == '\"' )
+ strcpy( input, input + 1 );
+ }
+ return input;
+}
+
+char *get_string( char *output, int maxlength, char *use )
+{
+ char *value = NULL;
+ strcpy( output, use );
+ if ( trim( chomp( fgets( output, maxlength, stdin ) ) ) != NULL )
+ {
+ if ( !strcmp( output, "" ) )
+ strcpy( output, use );
+ value = output;
+ }
+ return value;
+}
+
+int *get_int( int *output, int use )
+{
+ int *value = NULL;
+ char temp[ 132 ];
+ *output = use;
+ if ( trim( chomp( fgets( temp, 132, stdin ) ) ) != NULL )
+ {
+ if ( strcmp( temp, "" ) )
+ *output = atoi( temp );
+ value = output;
+ }
+ return value;
+}
+
+/** This stores the previous settings
+*/
+
+static struct termios oldtty;
+static int mode = 0;
+
+/** This is called automatically on application exit to restore the
+ previous tty settings.
+*/
+
+void term_exit(void)
+{
+ if ( mode == 1 )
+ {
+ tcsetattr( 0, TCSANOW, &oldtty );
+ mode = 0;
+ }
+}
+
+/** Init terminal so that we can grab keys without blocking.
+*/
+
+void term_init( )
+{
+ struct termios tty;
+
+ tcgetattr( 0, &tty );
+ oldtty = tty;
+
+ tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR|IGNCR|ICRNL|IXON);
+ tty.c_oflag |= OPOST;
+ tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+ tty.c_cflag &= ~(CSIZE|PARENB);
+ tty.c_cflag |= CS8;
+ tty.c_cc[ VMIN ] = 1;
+ tty.c_cc[ VTIME ] = 0;
+
+ tcsetattr( 0, TCSANOW, &tty );
+
+ mode = 1;
+
+ atexit( term_exit );
+}
+
+/** Check for a keypress without blocking infinitely.
+ Returns: ASCII value of keypress or -1 if no keypress detected.
+*/
+
+int term_read( )
+{
+ int n = 1;
+ unsigned char ch;
+ struct timeval tv;
+ fd_set rfds;
+
+ FD_ZERO( &rfds );
+ FD_SET( 0, &rfds );
+ tv.tv_sec = 0;
+ tv.tv_usec = 250;
+ n = select( 1, &rfds, NULL, NULL, &tv );
+ if (n > 0)
+ {
+ n = read( 0, &ch, 1 );
+ tcflush( 0, TCIFLUSH );
+ if (n == 1)
+ return ch;
+ return n;
+ }
+ return -1;
+}
+
+char get_keypress( )
+{
+ char value = '\0';
+ int pressed = 0;
+
+ fflush( stdout );
+
+ term_init( );
+ while ( ( pressed = term_read( ) ) == -1 ) ;
+ term_exit( );
+
+ value = (char)pressed;
+
+ return value;
+}
+
+void wait_for_any_key( char *message )
+{
+ if ( message == NULL )
+ printf( "Press any key to continue: " );
+ else
+ printf( "%s", message );
+
+ get_keypress( );
+
+ printf( "\n\n" );
+}
+
+void beep( )
+{
+ printf( "%c", 7 );
+ fflush( stdout );
+}
--- /dev/null
+/*
+ * io.h -- dv1394d client demo input/output
+ * Copyright (C) 2002-2003 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 program 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.
+ *
+ * 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.
+ */
+
+#ifndef _DEMO_IO_H_
+#define _DEMO_IO_H_
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+extern char *chomp( char * );
+extern char *trim( char * );
+extern char *strip_quotes( char * );
+extern char *get_string( char *, int, char * );
+extern int *get_int( int *, int );
+extern void term_init( );
+extern int term_read( );
+extern void term_exit( );
+extern char get_keypress( );
+extern void wait_for_any_key( char * );
+extern void beep( );
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
/** Constructor for the filter.
*/
-mlt_filter filter_resize_init( void *arg )
+mlt_filter filter_resize_init( char *arg )
{
mlt_filter this = calloc( sizeof( struct mlt_filter_s ), 1 );
if ( mlt_filter_init( this, this ) == 0 )
{
this->process = filter_process;
- mlt_properties_set( mlt_filter_properties( this ), "scale", "off" );
+ if ( arg != NULL )
+ mlt_properties_set( mlt_filter_properties( this ), "scale", arg );
+ else
+ mlt_properties_set( mlt_filter_properties( this ), "scale", "off" );
}
return this;
}
#include <framework/mlt_filter.h>
-extern mlt_filter filter_resize_init( void *arg );
+extern mlt_filter filter_resize_init( char *arg );
#endif
producer->get_frame = producer_get_frame;
producer->close = producer_close;
- if ( command == NULL )
- this->command = strdup( "image2raw -n -a -r 3 -ppm /usr/share/pixmaps/*.png" );
- else
+ if ( command != NULL )
this->command = strdup( command );
- this->pipe = popen( this->command, "r" );
-
return producer;
}
free( this );
return 0;
}
+static void producer_ppm_position( producer_ppm this, uint64_t requested )
+{
+ if ( requested != this->expected )
+ {
+ if ( this->video != NULL )
+ pclose( this->video );
+ this->video = NULL;
+ if ( this->audio != NULL )
+ pclose( this->audio );
+ this->audio = NULL;
+ }
+
+ // This is the next frame we expect
+ this->expected = mlt_producer_frame( &this->parent ) + 1;
+}
+
+FILE *producer_ppm_run_video( producer_ppm this )
+{
+ if ( this->video == NULL )
+ {
+ if ( this->command == NULL )
+ {
+ this->video = popen( "image2raw -n -a -r 3 -ppm /usr/share/pixmaps/*.png", "r" );
+ }
+ else
+ {
+ char command[ 1024 ];
+ float fps = mlt_producer_get_fps( &this->parent );
+ float position = mlt_producer_position( &this->parent );
+ sprintf( command, "ffmpeg -i \"%s\" -ss %f -f imagepipe -r %f -img ppm -", this->command, position, fps );
+ this->video = popen( command, "r" );
+ }
+ }
+ return this->video;
+}
+
+FILE *producer_ppm_run_audio( producer_ppm this )
+{
+ if ( this->audio == NULL )
+ {
+ if ( this->command != NULL )
+ {
+ char command[ 1024 ];
+ float position = mlt_producer_position( &this->parent );
+ sprintf( command, "ffmpeg -i \"%s\" -ss %f -f s16le -ar 48000 -ac 2 -", this->command, position );
+ this->audio = popen( command, "r" );
+ }
+ }
+ return this->audio;
+}
+
+
+static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *format, int *frequency, int *channels, int *samples )
+{
+ // Get the frames properties
+ mlt_properties properties = mlt_frame_properties( this );
+
+ FILE *pipe = mlt_properties_get_data( properties, "audio.pipe", NULL );
+
+ *frequency = 48000;
+ *channels = 2;
+ *samples = 1920;
+
+ // Size
+ int size = *samples * *channels * 2;
+
+ // Allocate an image
+ *buffer = malloc( size );
+
+ // Read it
+ fread( *buffer, size, 1, pipe );
+
+ // Pass the data on the frame properties
+ mlt_properties_set_data( properties, "audio", *buffer, size, free, NULL );
+
+ return 0;
+}
+
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
producer_ppm this = producer->child;
// Construct a test frame
*frame = mlt_frame_init( );
- // Scan the header
- if ( fscanf( this->pipe, "P6\n%d %d\n255\n", &width, &height ) == 2 )
- {
- // Get the frames properties
- mlt_properties properties = mlt_frame_properties( *frame );
+ // Are we at the position expected?
+ producer_ppm_position( this, mlt_producer_frame( producer ) );
+
+ // Open the pipe
+ FILE *video = producer_ppm_run_video( this );
+
+ // Open the audio pipe
+ FILE *audio = producer_ppm_run_audio( this );
+
+ // Get the frames properties
+ mlt_properties properties = mlt_frame_properties( *frame );
+ // Read the video
+ if ( video != NULL && fscanf( video, "P6\n%d %d\n255\n", &width, &height ) == 2 )
+ {
// Allocate an image
uint8_t *image = malloc( width * height * 3 );
// Read it
- fread( image, width * height * 3, 1, this->pipe );
+ fread( image, width * height * 3, 1, video );
// Pass the data on the frame properties
mlt_properties_set_data( properties, "image", image, width * height * 3, free, NULL );
mlt_frame_push_get_image( *frame, producer_get_image );
}
+ // Read the audio
+ if ( audio != NULL )
+ {
+ // Set the audio pipe
+ mlt_properties_set_data( properties, "audio.pipe", audio, 0, NULL, NULL );
+
+ // Hmm - register audio callback
+ ( *frame )->get_audio = producer_get_audio;
+ }
+
// Update timecode on the frame we're creating
mlt_frame_set_timecode( *frame, mlt_producer_position( producer ) );
static void producer_close( mlt_producer parent )
{
producer_ppm this = parent->child;
- pclose( this->pipe );
+ if ( this->video )
+ pclose( this->video );
+ if ( this->audio )
+ pclose( this->audio );
free( this->command );
parent->close = NULL;
mlt_producer_close( parent );
{
struct mlt_producer_s parent;
char *command;
- FILE *pipe;
+ FILE *video;
+ FILE *audio;
+ uint64_t expected;
};
extern mlt_producer producer_ppm_init( void *command );
request.freq = frequency;
request.format = AUDIO_S16;
request.channels = channels;
- request.samples = 1024;
+ request.samples = 512;
request.callback = sdl_fill_audio;
request.userdata = (void *)this;
if ( SDL_OpenAudio( &request, NULL ) < 0 )
// Construct the field
field = mlt_field_init( );
+
+ // We need to track the number of registered filters
mlt_properties properties = mlt_field_properties( field );
mlt_properties_set_int( properties, "registered", 0 );
projects / mlt / commitdiff