#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
/** Virtual playlist entry.
*/
typedef struct
{
mlt_producer producer;
- mlt_timecode in;
+ int64_t frame_in;
+ int64_t frame_out;
+ int64_t frame_count;
mlt_timecode playtime;
}
playlist_entry;
return mlt_producer_properties( &this->parent );
}
-/** Append to the virtual playlist.
-*/
-
-static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer producer, mlt_timecode in, mlt_timecode out )
+static int mlt_playlist_virtual_refresh( mlt_playlist this )
{
+ int i = 0;
+
// Get the fps of the first producer
double fps = mlt_properties_get_double( mlt_playlist_properties( this ), "first_fps" );
+ mlt_timecode playtime = 0;
- mlt_timecode playtime = mlt_producer_get_playtime( mlt_playlist_producer( this ) ) + out - in;
-
- // 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" ) )
+ for ( i = 0; i < this->count; i ++ )
{
- // Generate a warning for now - the following attempt to fix may fail
- fprintf( stderr, "Warning: fps mismatch on playlist producer %d\n", this->count );
+ // Get the producer
+ mlt_producer producer = this->list[ i ]->producer;
+
+ // 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" ) )
+ {
+ // 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 );
+ // 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 );
+ }
+
+ // Update the playtime for this clip
+ playtime += this->list[ i ]->playtime;
}
+ // Refresh all properties
+ mlt_properties_set_double( mlt_playlist_properties( this ), "first_fps", fps );
+ mlt_properties_set_double( mlt_playlist_properties( this ), "fps", fps == 0 ? 25 : fps );
+ mlt_properties_set_timecode( mlt_playlist_properties( this ), "length", playtime );
+ mlt_properties_set_timecode( mlt_playlist_properties( this ), "out", playtime );
+
+ return 0;
+}
+
+/** Append to the virtual playlist.
+*/
+
+static int mlt_playlist_virtual_append( mlt_playlist this, mlt_producer producer, int64_t in, int64_t out )
+{
+ double fps = mlt_properties_get_double( mlt_playlist_properties( this ), "fps" );
+ double playtime = ( double )( out - in + 1 ) / fps;
+
// Check that we have room
if ( this->count >= this->size )
{
this->list[ this->count ] = calloc( sizeof( playlist_entry ), 1 );
this->list[ this->count ]->producer = producer;
- this->list[ this->count ]->in = in;
- this->list[ this->count ]->playtime = out - in;
+ this->list[ this->count ]->frame_in = in;
+ this->list[ this->count ]->frame_out = out;
+ this->list[ this->count ]->frame_count = out - in + 1;
+ this->list[ this->count ]->playtime = playtime;
- this->count ++;
+ mlt_producer_set_speed( producer, 0 );
- mlt_properties_set_double( mlt_playlist_properties( this ), "first_fps", fps );
- mlt_properties_set_double( mlt_playlist_properties( this ), "fps", fps );
- mlt_properties_set_timecode( mlt_playlist_properties( this ), "length", playtime );
- mlt_properties_set_timecode( mlt_playlist_properties( this ), "out", playtime );
+ this->count ++;
- return 0;
+ return mlt_playlist_virtual_refresh( this );
}
/** Seek in the virtual playlist.
static mlt_producer mlt_playlist_virtual_seek( mlt_playlist this )
{
// Default producer to blank
- mlt_producer producer = &this->blank;
+ mlt_producer producer = NULL;
// Map playlist position to real producer in virtual playlist
- mlt_timecode position = mlt_producer_position( &this->parent );
+ mlt_timecode pos = mlt_producer_position( &this->parent );
+ int64_t position = mlt_producer_frame_position( &this->parent, pos );
+ int64_t total = 0;
// Loop through the virtual playlist
int i = 0;
for ( i = 0; i < this->count; i ++ )
{
- if ( position < this->list[ i ]->playtime )
+ // Increment the total
+ total += this->list[ i ]->frame_count;
+
+ if ( position < this->list[ i ]->frame_count )
{
// Found it, now break
producer = this->list[ i ]->producer;
- position += this->list[ i ]->in;
+ position += this->list[ i ]->frame_in;
break;
}
else
{
// Decrement position by length of this entry
- position -= this->list[ i ]->playtime;
+ position -= this->list[ i ]->frame_count;
}
}
// Seek in real producer to relative position
- mlt_producer_seek( producer, position );
+ if ( producer != NULL )
+ {
+ mlt_producer_seek_frame( producer, position );
+ }
+ else if ( total > 0 )
+ {
+ playlist_entry *entry = this->list[ this->count - 1 ];
+ mlt_producer this_producer = mlt_playlist_producer( this );
+ mlt_producer_seek_frame( this_producer, total - 1 );
+ producer = entry->producer;
+ mlt_producer_seek_frame( producer, entry->frame_out );
+ }
+ else
+ {
+ mlt_producer_seek( mlt_playlist_producer( this ), 0 );
+ producer = &this->blank;
+ }
return producer;
}
mlt_producer producer = &this->blank;
// Map playlist position to real producer in virtual playlist
- mlt_timecode position = mlt_producer_position( &this->parent );
+ mlt_timecode pos = mlt_producer_position( &this->parent );
+ int64_t position = mlt_producer_frame_position( &this->parent, pos );
// Loop through the virtual playlist
int i = 0;
for ( i = 0; i < this->count; i ++ )
{
- if ( position < this->list[ i ]->playtime )
+ if ( position < this->list[ i ]->frame_count )
{
// Found it, now break
producer = this->list[ i ]->producer;
- position += this->list[ i ]->in;
break;
}
else
{
// Decrement position by length of this entry
- position -= this->list[ i ]->playtime;
+ position -= this->list[ i ]->frame_count;
}
}
// Seek in real producer to relative position
if ( i < this->count )
{
- fprintf( stderr, "END OF CLIP %d AT %e\n", i, position );
- this->list[ i ]->playtime = position - this->list[ i ]->in;
+ // Update the playtime for the changed clip (hmmm)
+ this->list[ i ]->frame_count = position + 1;
+ this->list[ i ]->frame_out = position - this->list[ i ]->frame_in;
+
+ // Refresh the playlist
+ mlt_playlist_virtual_refresh( this );
}
return producer;
}
-static int mlt_playlist_current_clip( mlt_playlist this )
+int mlt_playlist_current_clip( mlt_playlist this )
{
// Map playlist position to real producer in virtual playlist
- mlt_timecode position = mlt_producer_position( &this->parent );
+ mlt_timecode pos = mlt_producer_position( &this->parent );
+ int64_t position = mlt_producer_frame_position( &this->parent, pos );
// Loop through the virtual playlist
int i = 0;
for ( i = 0; i < this->count; i ++ )
{
- if ( position < this->list[ i ]->playtime )
+ if ( position < this->list[ i ]->frame_count )
{
// Found it, now break
break;
else
{
// Decrement position by length of this entry
- position -= this->list[ i ]->playtime;
+ position -= this->list[ i ]->frame_count;
}
}
return i;
}
+mlt_producer mlt_playlist_current( mlt_playlist this )
+{
+ int i = mlt_playlist_current_clip( this );
+ if ( i < this->count )
+ return this->list[ i ]->producer;
+ else
+ return &this->blank;
+}
+
/** Get the timecode which corresponds to the start of the next clip.
*/
mlt_timecode mlt_playlist_clip( mlt_playlist this, mlt_whence whence, int index )
{
- mlt_timecode position = 0;
+ int64_t position = 0;
int absolute_clip = index;
int i = 0;
// Now determine the timecode
for ( i = 0; i < absolute_clip; i ++ )
- position += this->list[ i ]->playtime;
+ position += this->list[ i ]->frame_count;
- return position;
+ return mlt_producer_time( &this->parent, position );
+}
+
+int mlt_playlist_get_clip_info( mlt_playlist this, mlt_playlist_clip_info *info, int index )
+{
+ int error = index < 0 || index >= this->count;
+ memset( info, 0, sizeof( mlt_playlist_clip_info ) );
+ if ( !error )
+ {
+ mlt_producer producer = this->list[ index ]->producer;
+ mlt_properties properties = mlt_producer_properties( producer );
+ info->producer = producer;
+ info->start = mlt_playlist_clip( this, mlt_whence_relative_start, index );
+ info->resource = mlt_properties_get( properties, "resource" );
+ info->frame_in = this->list[ index ]->frame_in;
+ info->in = mlt_producer_time( producer, info->frame_in );
+ info->frame_out = this->list[ index ]->frame_out;
+ info->out = mlt_producer_time( producer, info->frame_out );
+ info->playtime = this->list[ index ]->playtime;
+ info->length = mlt_producer_get_length( producer );
+ info->fps = mlt_producer_get_fps( producer );
+ }
+ return error;
+}
+
+/** Get number of clips in the playlist.
+*/
+
+int mlt_playlist_count( mlt_playlist this )
+{
+ return this->count;
+}
+
+/** Clear the playlist.
+*/
+
+int mlt_playlist_clear( mlt_playlist this )
+{
+ 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.
int mlt_playlist_append( mlt_playlist this, mlt_producer producer )
{
// Append to virtual list
- return mlt_playlist_virtual_append( this, producer, 0, mlt_producer_get_playtime( producer ) );
+ int64_t out = mlt_producer_frame_position( producer, mlt_producer_get_out( producer ) );
+ return mlt_playlist_virtual_append( this, producer, 0, out );
+}
+
+/** Append a producer to the playlist with in/out points.
+*/
+
+int mlt_playlist_append_io( mlt_playlist this, mlt_producer producer, double in, double out )
+{
+ // Append to virtual list
+ if ( in != -1 && out != -1 )
+ {
+ int64_t fin = mlt_producer_frame_position( producer, in );
+ int64_t fout = mlt_producer_frame_position( producer, out );
+ return mlt_playlist_virtual_append( this, producer, fin, fout );
+ }
+ else
+ {
+ return mlt_playlist_append( this, producer );
+ }
}
/** Append a blank to the playlist of a given length.
int mlt_playlist_blank( mlt_playlist this, mlt_timecode length )
{
// Append to the virtual list
- return mlt_playlist_virtual_append( this, &this->blank, 0, length );
+ int64_t fout = mlt_producer_frame_position( &this->blank, length );
+ return mlt_playlist_virtual_append( this, &this->blank, 0, fout );
+}
+
+/** Insert a producer into the playlist.
+*/
+
+int mlt_playlist_insert( mlt_playlist this, mlt_producer producer, int where, mlt_timecode in, mlt_timecode out )
+{
+ return 0;
+}
+
+int mlt_playlist_remove( mlt_playlist this, int where )
+{
+ return 0;
+}
+
+int mlt_playlist_move( mlt_playlist this, int from, int to )
+{
+ return 0;
+}
+
+int mlt_playlist_resize_clip( mlt_playlist this, int clip, mlt_timecode in, mlt_timecode out )
+{
+ int error = clip < 0 || clip >= this->count;
+ if ( error == 0 )
+ {
+ playlist_entry *entry = this->list[ clip ];
+ mlt_producer producer = entry->producer;
+
+ if ( in <= -1 )
+ in = 0;
+ if ( out <= -1 || out >= mlt_producer_get_out( producer ) )
+ out = mlt_producer_get_out( producer );
+
+ if ( out < in )
+ {
+ mlt_timecode t = in;
+ in = out;
+ out = t;
+ }
+
+ int64_t fin = mlt_producer_frame_position( producer, in );
+ int64_t fout = mlt_producer_frame_position( producer, out );
+
+ entry->frame_in = fin;
+ entry->frame_out = fout;
+ entry->frame_count = fout - fin + 1;
+ entry->playtime = out - in;
+ mlt_playlist_virtual_refresh( this );
+ }
+ return error;
}
/** Get the current frame.
if ( mlt_properties_get_int( properties, "end_of_clip" ) )
mlt_playlist_virtual_set_out( this );
+ // Check for notifier and call with appropriate argument
+ mlt_properties playlist_properties = mlt_producer_properties( producer );
+ void ( *notifier )( void * ) = mlt_properties_get_data( playlist_properties, "notifier", NULL );
+ if ( notifier != NULL )
+ {
+ void *argument = mlt_properties_get_data( playlist_properties, "notifier_arg", NULL );
+ notifier( argument );
+ }
+
// Update timecode on the frame we're creating
mlt_frame_set_timecode( *frame, mlt_producer_position( producer ) );