-/*
- * mlt_playlist.c -- playlist service class
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Charles Yates <charles.yates@pandora.be>
+/**
+ * \file mlt_playlist.c
+ * \brief playlist service class
+ * \see mlt_playlist_s
*
- * 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.
+ * Copyright (C) 2003-2009 Ushodaya Enterprises Limited
+ * \author Charles Yates <charles.yates@pandora.be>
*
- * This program is distributed in the hope that it will be useful,
+ * 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 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 "config.h"
-
#include "mlt_playlist.h"
#include "mlt_tractor.h"
#include "mlt_multitrack.h"
#include <stdlib.h>
#include <string.h>
-/** Virtual playlist entry.
+/** \brief Virtual playlist entry used by mlt_playlist_s
*/
struct playlist_entry_s
int preservation_hack;
};
-/** Forward declarations
+/* Forward declarations
*/
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index );
static int mlt_playlist_unmix( mlt_playlist this, int clip );
static int mlt_playlist_resize_mix( mlt_playlist this, int clip, int in, int out );
-/** Constructor.
-*/
+/** Construct a playlist.
+ *
+ * Sets the resource property to "<playlist>".
+ * Set the mlt_type to property to "mlt_producer".
+ * \public \memberof mlt_playlist_s
+ * \return a new playlist
+ */
mlt_playlist mlt_playlist_init( )
{
this->size = 10;
this->list = malloc( this->size * sizeof( playlist_entry * ) );
}
-
+
return this;
}
/** Get the producer associated to this playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the producer interface
+ * \see MLT_PLAYLIST_PRODUCER
+ */
mlt_producer mlt_playlist_producer( mlt_playlist this )
{
}
/** Get the service associated to this playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the service interface
+ * \see MLT_PLAYLIST_SERVICE
+ */
mlt_service mlt_playlist_service( mlt_playlist this )
{
return MLT_PRODUCER_SERVICE( &this->parent );
}
-/** Get the propertues associated to this playlist.
-*/
+/** Get the properties associated to this playlist.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the playlist's properties list
+ * \see MLT_PLAYLIST_PROPERTIES
+ */
mlt_properties mlt_playlist_properties( mlt_playlist this )
{
}
/** Refresh the playlist after a clip has been changed.
-*/
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return false
+ */
static int mlt_playlist_virtual_refresh( mlt_playlist this )
{
// Obtain the properties
mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
-
- // Get the fps of the first producer
- double fps = mlt_properties_get_double( properties, "first_fps" );
int i = 0;
mlt_position frame_count = 0;
{
// Get the producer
mlt_producer producer = this->list[ i ]->producer;
- int current_length = mlt_producer_get_out( producer ) - mlt_producer_get_in( producer ) + 1;
-
- // If fps is 0
- if ( fps == 0 )
- {
- // Inherit it from the producer
- fps = mlt_producer_get_fps( producer );
- }
- else if ( fps != mlt_properties_get_double( MLT_PRODUCER_PROPERTIES( producer ), "fps" ) )
+ if ( producer )
{
- // Generate a warning for now - the following attempt to fix may fail
- fprintf( stderr, "Warning: fps mismatch on playlist producer %d\n", this->count );
-
- // It should be safe to impose fps on an image producer, but not necessarily safe for video
- mlt_properties_set_double( MLT_PRODUCER_PROPERTIES( producer ), "fps", fps );
- }
+ int current_length = mlt_producer_get_out( producer ) - mlt_producer_get_in( producer ) + 1;
- // Check if the length of the producer has changed
- if ( this->list[ i ]->frame_in != mlt_producer_get_in( producer ) ||
- this->list[ i ]->frame_out != mlt_producer_get_out( producer ) )
- {
- // This clip should be removed...
- if ( current_length < 1 )
- {
- this->list[ i ]->frame_in = 0;
- this->list[ i ]->frame_out = -1;
- this->list[ i ]->frame_count = 0;
- }
- else
+ // Check if the length of the producer has changed
+ if ( this->list[ i ]->frame_in != mlt_producer_get_in( producer ) ||
+ this->list[ i ]->frame_out != mlt_producer_get_out( producer ) )
{
- this->list[ i ]->frame_in = mlt_producer_get_in( producer );
- this->list[ i ]->frame_out = mlt_producer_get_out( producer );
- this->list[ i ]->frame_count = current_length;
- }
+ // This clip should be removed...
+ if ( current_length < 1 )
+ {
+ this->list[ i ]->frame_in = 0;
+ this->list[ i ]->frame_out = -1;
+ this->list[ i ]->frame_count = 0;
+ }
+ else
+ {
+ this->list[ i ]->frame_in = mlt_producer_get_in( producer );
+ this->list[ i ]->frame_out = mlt_producer_get_out( producer );
+ this->list[ i ]->frame_count = current_length;
+ }
- // Update the producer_length
- this->list[ i ]->producer_length = current_length;
+ // Update the producer_length
+ this->list[ i ]->producer_length = current_length;
+ }
}
// Calculate the frame_count
}
// Refresh all properties
- mlt_properties_set_double( properties, "first_fps", fps );
- mlt_properties_set_double( properties, "fps", fps == 0 ? 25 : fps );
mlt_events_block( properties, properties );
mlt_properties_set_position( properties, "length", frame_count );
mlt_events_unblock( properties, properties );
}
/** Listener for producers on the playlist.
-*/
+ *
+ * Refreshes the playlist whenever an entry receives producer-changed.
+ * \private \memberof mlt_playlist_s
+ * \param producer a producer
+ * \param this a playlist
+ */
static void mlt_playlist_listener( mlt_producer producer, mlt_playlist this )
{
}
/** Append to the virtual playlist.
-*/
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param source a producer
+ * \param in the producer's starting time
+ * \param out the producer's ending time
+ * \return true if there was an error
+ */
static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer source, mlt_position in, mlt_position out )
{
else if ( mlt_producer_is_cut( source ) )
{
producer = source;
- if ( in == -1 )
+ if ( in < 0 )
in = mlt_producer_get_in( producer );
- if ( out == -1 || out > mlt_producer_get_out( producer ) )
+ if ( out < 0 || out > mlt_producer_get_out( producer ) )
out = mlt_producer_get_out( producer );
properties = MLT_PRODUCER_PROPERTIES( producer );
mlt_properties_inc_ref( properties );
else
{
producer = mlt_producer_cut( source, in, out );
- if ( in == -1 || in < mlt_producer_get_in( producer ) )
+ if ( in < 0 || in < mlt_producer_get_in( producer ) )
in = mlt_producer_get_in( producer );
- if ( out == -1 || out > mlt_producer_get_out( producer ) )
+ if ( out < 0 || out > mlt_producer_get_out( producer ) )
out = mlt_producer_get_out( producer );
properties = MLT_PRODUCER_PROPERTIES( producer );
}
// Fetch the cuts parent properties
parent = MLT_PRODUCER_PROPERTIES( mlt_producer_cut_parent( producer ) );
+ // Remove loader normalisers for fx cuts
+ if ( mlt_properties_get_int( parent, "meta.fx_cut" ) )
+ {
+ mlt_service service = MLT_PRODUCER_SERVICE( mlt_producer_cut_parent( producer ) );
+ mlt_filter filter = mlt_service_filter( service, 0 );
+ while ( filter != NULL && mlt_properties_get_int( MLT_FILTER_PROPERTIES( filter ), "_loader" ) )
+ {
+ mlt_service_detach( service, filter );
+ filter = mlt_service_filter( service, 0 );
+ }
+ mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( producer ), "meta.fx_cut", 1 );
+ }
+
// Check that we have room
if ( this->count >= this->size )
{
return mlt_playlist_virtual_refresh( this );
}
+/** Locate a producer by index.
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param[in, out] position the time at which to locate the producer, returns the time relative to the producer's starting point
+ * \param[out] clip the index of the playlist entry
+ * \param[out] total the duration of the playlist up to and including this producer
+ * \return a producer or NULL if not found
+ */
+
static mlt_producer mlt_playlist_locate( mlt_playlist this, mlt_position *position, int *clip, int *total )
{
// Default producer to NULL
}
/** Seek in the virtual playlist.
-*/
+ *
+ * This gets the producer at the current position and seeks on the producer
+ * while doing repeat and end-of-file handling. This is also responsible for
+ * closing producers previous to the preceding playlist if the autoclose
+ * property is set.
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param[out] progressive true if the producer should be displayed progressively
+ * \return the service interface of the producer at the play head
+ * \see producer_get_frame
+ */
static mlt_service mlt_playlist_virtual_seek( mlt_playlist this, int *progressive )
{
// Get the properties
mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
+ // Automatically close previous producers if requested
+ if ( i > 1 // keep immediate previous in case app wants to get info about what just finished
+ && position < 2 // tolerate off-by-one error on going to next clip
+ && mlt_properties_get_int( properties, "autoclose" ) )
+ {
+ int j;
+ // They might have jumped ahead!
+ for ( j = 0; j < i - 1; j++ )
+ {
+ mlt_service_lock( MLT_PRODUCER_SERVICE( this->list[ j ]->producer ) );
+ mlt_producer p = this->list[ j ]->producer;
+ if ( p )
+ {
+ this->list[ j ]->producer = NULL;
+ mlt_service_unlock( MLT_PRODUCER_SERVICE( p ) );
+ mlt_producer_close( p );
+ }
+ // If p is null, the lock will not have been "taken"
+ }
+ }
+
// Get the eof handling
char *eof = mlt_properties_get( properties, "eof" );
{
int count = this->list[ i ]->frame_count / this->list[ i ]->repeat;
*progressive = count == 1;
- mlt_producer_seek( producer, position % count );
+ mlt_producer_seek( producer, (int)position % count );
}
else if ( !strcmp( eof, "pause" ) && total > 0 )
{
mlt_producer this_producer = MLT_PLAYLIST_PRODUCER( this );
mlt_producer_seek( this_producer, original - 1 );
producer = entry->producer;
- mlt_producer_seek( producer, entry->frame_out % count );
+ mlt_producer_seek( producer, (int)entry->frame_out % count );
mlt_producer_set_speed( this_producer, 0 );
mlt_producer_set_speed( producer, 0 );
*progressive = count == 1;
}
/** Invoked when a producer indicates that it has prematurely reached its end.
-*/
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return a producer
+ * \see producer_get_frame
+ */
static mlt_producer mlt_playlist_virtual_set_out( mlt_playlist this )
{
}
/** Obtain the current clips index.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the index of the playlist entry at the current position
+ */
int mlt_playlist_current_clip( mlt_playlist this )
{
}
/** Obtain the current clips producer.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the producer at the current position
+ */
mlt_producer mlt_playlist_current( mlt_playlist this )
{
}
/** Get the position which corresponds to the start of the next clip.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param whence the location from which to make the index relative:
+ * start of playlist, end of playlist, or current position
+ * \param index the playlist entry index relative to whence
+ * \return the time at which the referenced clip starts
+ */
mlt_position mlt_playlist_clip( mlt_playlist this, mlt_whence whence, int index )
{
}
/** Get all the info about the clip specified.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param info a clip info struct
+ * \param index a playlist entry index
+ * \return true if there was an error
+ */
int mlt_playlist_get_clip_info( mlt_playlist this, mlt_playlist_clip_info *info, int index )
{
- int error = index < 0 || index >= this->count;
+ int error = index < 0 || index >= this->count || this->list[ index ]->producer == NULL;
memset( info, 0, sizeof( mlt_playlist_clip_info ) );
if ( !error )
{
}
/** Get number of clips in the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return the number of playlist entries
+ */
int mlt_playlist_count( mlt_playlist this )
{
}
/** Clear the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \return true if there was an error
+ */
int mlt_playlist_clear( mlt_playlist this )
{
mlt_producer_close( this->list[ i ]->producer );
}
this->count = 0;
- mlt_properties_set_double( MLT_PLAYLIST_PROPERTIES( this ), "first_fps", 0 );
return mlt_playlist_virtual_refresh( this );
}
/** Append a producer to the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param producer the producer to append
+ * \return true if there was an error
+ */
int mlt_playlist_append( mlt_playlist this, mlt_producer producer )
{
}
/** Append a producer to the playlist with in/out points.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param producer the producer to append
+ * \param in the starting point on the producer; a negative value is the same as 0
+ * \param out the ending point on the producer; a negative value is the same as producer length - 1
+ * \return true if there was an error
+ */
int mlt_playlist_append_io( mlt_playlist this, mlt_producer producer, mlt_position in, mlt_position out )
{
// Append to virtual list
- if ( in != -1 && out != -1 )
- return mlt_playlist_virtual_append( this, producer, in, out );
- else
+ if ( in < 0 && out < 0 )
return mlt_playlist_append( this, producer );
+ else
+ return mlt_playlist_virtual_append( this, producer, in, out );
}
/** Append a blank to the playlist of a given length.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param length the ending time of the blank entry, not its duration
+ * \return true if there was an error
+ */
int mlt_playlist_blank( mlt_playlist this, mlt_position length )
{
// Append to the virtual list
- return mlt_playlist_virtual_append( this, &this->blank, 0, length );
+ if (length >= 0)
+ return mlt_playlist_virtual_append( this, &this->blank, 0, length );
+ else
+ return 1;
}
/** Insert a producer into the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param producer the producer to insert
+ * \param where the producer's playlist entry index
+ * \param in the starting point on the producer
+ * \param out the ending point on the producer
+ * \return true if there was an error
+ */
int mlt_playlist_insert( mlt_playlist this, mlt_producer producer, int where, mlt_position in, mlt_position out )
{
}
/** Remove an entry in the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param where the playlist entry index
+ * \return true if there was an error
+ */
int mlt_playlist_remove( mlt_playlist this, int where )
{
// Loop variable
int i = 0;
- // Get the clip info
+ // Get the clip info
mlt_playlist_get_clip_info( this, &where_info, where );
// Make sure the clip to be removed is valid and correct if necessary
- if ( where < 0 )
+ if ( where < 0 )
where = 0;
if ( where >= this->count )
where = this->count - 1;
mlt_properties mix = mlt_properties_get_data( properties, "mix_out", NULL );
mlt_properties_set_data( mix, "mix_in", NULL, 0, NULL, NULL );
}
-
+
if ( mlt_properties_ref_count( MLT_PRODUCER_PROPERTIES( entry->producer ) ) == 1 )
mlt_producer_clear( entry->producer );
}
}
/** Move an entry in the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param src an entry index
+ * \param dest an entry index
+ * \return false
+ */
int mlt_playlist_move( mlt_playlist this, int src, int dest )
{
int i;
/* We need to ensure that the requested indexes are valid and correct it as necessary */
- if ( src < 0 )
+ if ( src < 0 )
src = 0;
if ( src >= this->count )
src = this->count - 1;
- if ( dest < 0 )
+ if ( dest < 0 )
dest = 0;
if ( dest >= this->count )
dest = this->count - 1;
-
+
if ( src != dest && this->count > 1 )
{
int current = mlt_playlist_current_clip( this );
}
/** Repeat the specified clip n times.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip a playlist entry index
+ * \param repeat the number of times to repeat the clip
+ * \return true if there was an error
+ */
int mlt_playlist_repeat_clip( mlt_playlist this, int clip, int repeat )
{
}
/** Resize the specified clip.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param in the new starting time on the clip's producer; a negative value is the same as 0
+ * \param out the new ending time on the clip's producer; a negative value is the same as length - 1
+ * \return true if there was an error
+ */
int mlt_playlist_resize_clip( mlt_playlist this, int clip, mlt_position in, mlt_position out )
{
}
}
- if ( in <= -1 )
+ if ( in < 0 )
in = 0;
- if ( out <= -1 || out >= mlt_producer_get_length( producer ) )
+ if ( out < 0 || out >= mlt_producer_get_length( producer ) )
out = mlt_producer_get_length( producer ) - 1;
if ( out < in )
}
/** Split a clip on the playlist at the given position.
-*/
+ *
+ * This splits after the specified frame.
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param position the time at which to split relative to the beginning of the clip or its end if negative
+ * \return true if there was an error
+ */
int mlt_playlist_split( mlt_playlist this, int clip, mlt_position position )
{
}
/** Split the playlist at the absolute position.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position the time at which to split relative to the beginning of the clip
+ * \param left true to split before the frame starting at position
+ * \return true if there was an error
+ */
int mlt_playlist_split_at( mlt_playlist this, mlt_position position, int left )
{
}
/** Join 1 or more consecutive clips.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the starting playlist entry index
+ * \param count the number of entries to merge
+ * \param merge ignored
+ * \return true if there was an error
+ */
int mlt_playlist_join( mlt_playlist this, int clip, int count, int merge )
{
}
/** Mix consecutive clips for a specified length and apply transition if specified.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param length the number of frames over which to create the mix
+ * \param transition the transition to use for the mix
+ * \return true if there was an error
+ */
int mlt_playlist_mix( mlt_playlist this, int clip, int length, mlt_transition transition )
{
}
/** Add a transition to an existing mix.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param transition a transition
+ * \return true if there was an error
+ */
int mlt_playlist_mix_add( mlt_playlist this, int clip, mlt_transition transition )
{
}
/** Return the clip at the clip index.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of a playlist entry
+ * \return a producer or NULL if there was an error
+ */
mlt_producer mlt_playlist_get_clip( mlt_playlist this, int clip )
{
}
/** Return the clip at the specified position.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position a time relative to the beginning of the playlist
+ * \return a producer or NULL if not found
+ */
-mlt_producer mlt_playlist_get_clip_at( mlt_playlist this, int position )
+mlt_producer mlt_playlist_get_clip_at( mlt_playlist this, mlt_position position )
{
int index = 0, total = 0;
return mlt_playlist_locate( this, &position, &index, &total );
}
/** Return the clip index of the specified position.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position a time relative to the beginning of the playlist
+ * \return the index of the playlist entry
+ */
-int mlt_playlist_get_clip_index_at( mlt_playlist this, int position )
+int mlt_playlist_get_clip_index_at( mlt_playlist this, mlt_position position )
{
int index = 0, total = 0;
mlt_playlist_locate( this, &position, &index, &total );
}
/** Determine if the clip is a mix.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return true if the producer is a mix
+ */
int mlt_playlist_clip_is_mix( mlt_playlist this, int clip )
{
}
/** Remove a mixed clip - ensure that the cuts included in the mix find their way
- back correctly on to the playlist.
-*/
+ * back correctly on to the playlist.
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return true if there was an error
+ */
static int mlt_playlist_unmix( mlt_playlist this, int clip )
{
- int error = ( clip < 0 || clip >= this->count );
+ int error = ( clip < 0 || clip >= this->count );
// Ensure that the clip request is actually a mix
if ( error == 0 )
return error;
}
+/** Resize a mix clip.
+ *
+ * \private \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param in the new starting point
+ * \param out the new ending point
+ * \return true if there was an error
+ */
+
static int mlt_playlist_resize_mix( mlt_playlist this, int clip, int in, int out )
{
- int error = ( clip < 0 || clip >= this->count );
+ int error = ( clip < 0 || clip >= this->count );
// Ensure that the clip request is actually a mix
if ( error == 0 )
return error;
}
-/** Consolodate adjacent blank producers.
-*/
+/** Consolidate adjacent blank producers.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param keep_length set false to remove the last entry if it is blank
+ */
void mlt_playlist_consolidate_blanks( mlt_playlist this, int keep_length )
{
}
/** Determine if the specified clip index is a blank.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return true if there was an error
+ */
int mlt_playlist_is_blank( mlt_playlist this, int clip )
{
}
/** Determine if the specified position is a blank.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position a time relative to the start or end (negative) of the playlist
+ * \return true if there was an error
+ */
-int mlt_playlist_is_blank_at( mlt_playlist this, int position )
+int mlt_playlist_is_blank_at( mlt_playlist this, mlt_position position )
{
return this == NULL || mlt_producer_is_blank( mlt_playlist_get_clip_at( this, position ) );
}
/** Replace the specified clip with a blank and return the clip.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return a producer or NULL if there was an error
+ */
mlt_producer mlt_playlist_replace_with_blank( mlt_playlist this, int clip )
{
return producer;
}
+/** Insert blank space.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the new blank section
+ * \param length the ending time of the new blank section (duration - 1)
+ */
+
void mlt_playlist_insert_blank( mlt_playlist this, int clip, int length )
{
if ( this != NULL && length >= 0 )
}
}
-void mlt_playlist_pad_blanks( mlt_playlist this, int position, int length, int find )
+/** Resize a blank entry.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position the time at which the blank entry exists relative to the start or end (negative) of the playlist.
+ * \param length the additional amount of blank frames to add
+ * \param find true to fist locate the blank after the clip at position
+ */
+void mlt_playlist_pad_blanks( mlt_playlist this, mlt_position position, int length, int find )
{
if ( this != NULL && length != 0 )
{
}
}
-int mlt_playlist_insert_at( mlt_playlist this, int position, mlt_producer producer, int mode )
+/** Insert a clip at a specific time.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position the time at which to insert
+ * \param producer the producer to insert
+ * \param mode true if you want to overwrite any blank section
+ * \return true if there was an error
+ */
+
+int mlt_playlist_insert_at( mlt_playlist this, mlt_position position, mlt_producer producer, int mode )
{
int ret = this == NULL || position < 0 || producer == NULL;
if ( ret == 0 )
if ( clip < this->count && mlt_playlist_is_blank( this, clip ) )
{
// Split and move to new clip if need be
- if ( position != info.start && mlt_playlist_split( this, clip, position - info.start ) == 0 )
+ if ( position != info.start && mlt_playlist_split( this, clip, position - info.start - 1 ) == 0 )
mlt_playlist_get_clip_info( this, &info, ++ clip );
// Split again if need be
mlt_playlist_insert( this, producer, clip, -1, -1 );
ret = clip;
}
- else
+ else
{
- if ( mode == 1 )
- mlt_playlist_blank( this, position - mlt_properties_get_int( properties, "length" ) );
+ if ( mode == 1 ) {
+ if ( position == info.start )
+ mlt_playlist_remove( this, clip );
+ else
+ mlt_playlist_blank( this, position - mlt_properties_get_int( properties, "length" ) - 1 );
+ }
mlt_playlist_append( this, producer );
ret = this->count - 1;
}
return ret;
}
+/** Get the time at which the clip starts relative to the playlist.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return the starting time
+ */
+
int mlt_playlist_clip_start( mlt_playlist this, int clip )
{
mlt_playlist_clip_info info;
return clip < 0 ? 0 : mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) );
}
+/** Get the playable duration of the clip.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \return the duration of the playlist entry
+ */
+
int mlt_playlist_clip_length( mlt_playlist this, int clip )
{
mlt_playlist_clip_info info;
return 0;
}
+/** Get the duration of a blank space.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param clip the index of the playlist entry
+ * \param bounded the maximum number of blank entries or 0 for all
+ * \return the duration of a blank section
+ */
+
int mlt_playlist_blanks_from( mlt_playlist this, int clip, int bounded )
{
int count = 0;
return count;
}
-int mlt_playlist_remove_region( mlt_playlist this, int position, int length )
+/** Remove a portion of the playlist by time.
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ * \param position the starting time
+ * \param length the duration of time to remove
+ * \return the new entry index at the position
+ */
+
+int mlt_playlist_remove_region( mlt_playlist this, mlt_position position, int length )
{
int index = mlt_playlist_get_clip_index_at( this, position );
if ( index >= 0 && index < this->count )
{
mlt_properties properties = MLT_PLAYLIST_PROPERTIES( this );
int clip_start = mlt_playlist_clip_start( this, index );
- int clip_length = mlt_playlist_clip_length( this, index );
int list_length = mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( this ) );
mlt_events_block( properties, this );
if ( clip_start < position )
{
- mlt_playlist_split( this, index ++, position - clip_start );
- clip_length -= position - clip_start;
+ mlt_playlist_split( this, index ++, position - clip_start - 1 );
}
while( length > 0 )
{
if ( mlt_playlist_clip_length( this, index ) > length )
- mlt_playlist_split( this, index, length );
+ mlt_playlist_split( this, index, length - 1 );
length -= mlt_playlist_clip_length( this, index );
mlt_playlist_remove( this, index );
}
-
+
mlt_playlist_consolidate_blanks( this, 0 );
mlt_events_unblock( properties, this );
mlt_playlist_virtual_refresh( this );
return index;
}
-int mlt_playlist_move_region( mlt_playlist this, int position, int length, int new_position )
+/** Not implemented
+ *
+ * \deprecated not implemented
+ * \public \memberof mlt_playlist_s
+ * \param this
+ * \param position
+ * \param length
+ * \param new_position
+ * \return
+ */
+
+int mlt_playlist_move_region( mlt_playlist this, mlt_position position, int length, int new_position )
{
if ( this != NULL )
{
}
/** Get the current frame.
-*/
+ *
+ * The implementation of the get_frame virtual function.
+ * \private \memberof mlt_playlist_s
+ * \param producer a producer
+ * \param frame a frame by reference
+ * \param index the time at which to get the frame
+ * \return false
+ */
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
// Check that we have a producer
if ( producer == NULL )
{
- *frame = mlt_frame_init( );
- return 0;
+ *frame = NULL;
+ return -1;
}
// Get this mlt_playlist
// Check that we have a producer
if ( real == NULL )
{
- *frame = mlt_frame_init( );
+ *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
return 0;
}
// Get the frame
- mlt_service_get_frame( real, frame, index );
+ if ( !mlt_properties_get_int( MLT_SERVICE_PROPERTIES( real ), "meta.fx_cut" ) )
+ {
+ mlt_service_get_frame( real, frame, index );
+ }
+ else
+ {
+ mlt_producer parent = mlt_producer_cut_parent( ( mlt_producer )real );
+ *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( parent ) );
+ mlt_properties_set_int( MLT_FRAME_PROPERTIES( *frame ), "fx_cut", 1 );
+ mlt_frame_push_service( *frame, NULL );
+ mlt_frame_push_audio( *frame, NULL );
+ mlt_service_apply_filters( MLT_PRODUCER_SERVICE( parent ), *frame, 0 );
+ mlt_service_apply_filters( real, *frame, 0 );
+ mlt_deque_pop_front( MLT_FRAME_IMAGE_STACK( *frame ) );
+ mlt_deque_pop_front( MLT_FRAME_AUDIO_STACK( *frame ) );
+ }
// Check if we're at the end of the clip
mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
}
/** Close the playlist.
-*/
+ *
+ * \public \memberof mlt_playlist_s
+ * \param this a playlist
+ */
void mlt_playlist_close( mlt_playlist this )
{
projects / mlt / blobdiff