* Copyright (C) 2003-2004 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 library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "producer_libdv.h"
// Configure the decoder
this = dv_decoder_new( FALSE, FALSE, FALSE );
- this->quality = DV_QUALITY_COLOR | DV_QUALITY_AC_1;
+ this->quality = DV_QUALITY_COLOR | DV_QUALITY_AC_2;
this->audio->arg_audio_emphasis = 2;
dv_set_audio_correction( this, DV_AUDIO_CORRECT_AVERAGE );
+ dv_set_error_log( this, NULL );
// Register it with the properties to ensure clean up
sprintf( label, "%p", this );
uint64_t file_size;
int frame_size;
long frames_in_file;
+ mlt_producer alternative;
};
static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int index );
if ( filename != NULL && this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
{
+ int destroy = 0;
mlt_producer producer = &this->parent;
- mlt_properties properties = mlt_producer_properties( producer );
+ mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
+
+ // Set the resource property (required for all producers)
+ mlt_properties_set( properties, "resource", filename );
// Register transport implementation with the producer
producer->close = ( mlt_destructor )producer_close;
// Register our get_frame implementation with the producer
producer->get_frame = producer_get_frame;
- // Open the file if specified
- this->fd = open( filename, O_RDONLY );
-
- // Collect info
- if ( this->fd != -1 && producer_collect_info( this ) )
+ // If we have mov or dv, then we'll use an alternative producer
+ if ( strchr( filename, '.' ) != NULL && (
+ strncasecmp( strrchr( filename, '.' ), ".avi", 4 ) == 0 ||
+ strncasecmp( strrchr( filename, '.' ), ".mov", 4 ) == 0 ) )
{
- // Set the resource property (required for all producers)
- mlt_properties_set( properties, "resource", filename );
+ // Load via an alternative mechanism
+ this->alternative = mlt_factory_producer( "kino", filename );
+
+ // If it's unavailable, then clean up
+ if ( this->alternative == NULL )
+ destroy = 1;
+ else
+ mlt_properties_pass( properties, MLT_PRODUCER_PROPERTIES( this->alternative ), "" );
+ this->is_pal = mlt_properties_get_int( properties, "fps" ) == 25;
}
else
{
- // Reject this file
+ // Open the file if specified
+ this->fd = open( filename, O_RDONLY );
+
+ // Collect info
+ if ( this->fd == -1 || !producer_collect_info( this ) )
+ destroy = 1;
+ }
+
+ // If we couldn't open the file, then destroy it now
+ if ( destroy )
+ {
mlt_producer_close( producer );
producer = NULL;
}
if ( valid )
{
// Get the properties
- mlt_properties properties = mlt_producer_properties( &this->parent );
+ mlt_properties properties = MLT_PRODUCER_PROPERTIES( &this->parent );
// Get a dv_decoder
dv_decoder_t *dv_decoder = dv_decoder_alloc( );
double fps = this->is_pal ? 25 : 30000.0 / 1001.0;
if ( mlt_properties_get_double( properties, "fps" ) == fps )
{
- mlt_properties_set_position( properties, "length", this->frames_in_file );
- mlt_properties_set_position( properties, "in", 0 );
- mlt_properties_set_position( properties, "out", this->frames_in_file - 1 );
+ if ( this->frames_in_file > 0 )
+ {
+ mlt_properties_set_position( properties, "length", this->frames_in_file );
+ mlt_properties_set_position( properties, "in", 0 );
+ mlt_properties_set_position( properties, "out", this->frames_in_file - 1 );
+ }
}
else
{
// Parse the header for meta info
dv_parse_header( dv_decoder, dv_data );
mlt_properties_set_double( properties, "aspect_ratio",
- dv_format_wide( dv_decoder ) ? ( this->is_pal ? 512.0/351.0 : 96.0/79.0 ) : ( this->is_pal ? 128.0/117.0 : 72.0/79.0 ) );
+ dv_format_wide( dv_decoder ) ? ( this->is_pal ? 118.0/81.0 : 40.0/33.0 ) : ( this->is_pal ? 59.0/54.0 : 10.0/11.0 ) );
// Return the decoder
dv_decoder_return( dv_decoder );
uint8_t *pixels[3] = { NULL, NULL, NULL };
// Get the frames properties
- mlt_properties properties = mlt_frame_properties( this );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( this );
// Get a dv_decoder
dv_decoder_t *decoder = dv_decoder_alloc( );
// Parse the header for meta info
dv_parse_header( decoder, dv_data );
- // Assign width and height from properties
- *width = mlt_properties_get_int( properties, "width" );
- *height = mlt_properties_get_int( properties, "height" );
+ // Assign width and height according to the frame
+ *width = 720;
+ *height = dv_data[ 3 ] & 0x80 ? 576 : 480;
// Extract an image of the format requested
- if ( *format == mlt_image_yuv422 )
+ if ( *format == mlt_image_yuv422 || *format == mlt_image_yuv420p )
{
// Allocate an image
uint8_t *image = mlt_pool_alloc( *width * ( *height + 1 ) * 2 );
// Assign result
*buffer = image;
+ *format = mlt_image_yuv422;
}
- else if ( *format == mlt_image_rgb24 )
+ else
{
// Allocate an image
uint8_t *image = mlt_pool_alloc( *width * ( *height + 1 ) * 3 );
// Assign result
*buffer = image;
+ *format = mlt_image_rgb24;
}
// Return the decoder
int16_t *audio_channels[ 4 ];
// Get the frames properties
- mlt_properties properties = mlt_frame_properties( this );
+ mlt_properties properties = MLT_FRAME_PROPERTIES( this );
// Get a dv_decoder
dv_decoder_t *decoder = dv_decoder_alloc( );
else
{
// No audio available on the frame, so get test audio (silence)
- this->get_audio = NULL;
mlt_frame_get_audio( this, buffer, format, frequency, channels, samples );
}
static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
{
+ // Access the private data
producer_libdv this = producer->child;
- uint8_t *data = mlt_pool_alloc( FRAME_SIZE_625_50 );
-
+
+ // Will carry the frame data
+ uint8_t *data = NULL;
+
// Obtain the current frame number
uint64_t position = mlt_producer_frame( producer );
- // Convert timecode to a file position (ensuring that we're on a frame boundary)
- uint64_t offset = position * this->frame_size;
+ if ( this->alternative == NULL )
+ {
+ // Convert timecode to a file position (ensuring that we're on a frame boundary)
+ uint64_t offset = position * this->frame_size;
+
+ // Allocate space
+ data = mlt_pool_alloc( FRAME_SIZE_625_50 );
+
+ // Create an empty frame
+ *frame = mlt_frame_init( );
+
+ // Seek and fetch
+ if ( this->fd != 0 &&
+ lseek( this->fd, offset, SEEK_SET ) == offset &&
+ read_frame( this->fd, data, &this->is_pal ) )
+ {
+ // Pass the dv data
+ mlt_properties_set_data( MLT_FRAME_PROPERTIES( *frame ), "dv_data", data, FRAME_SIZE_625_50, ( mlt_destructor )mlt_pool_release, NULL );
+ }
+ else
+ {
+ mlt_pool_release( data );
+ data = NULL;
+ }
+ }
+ else
+ {
+ // Seek
+ mlt_producer_seek( this->alternative, position );
+
+ // Fetch
+ mlt_service_get_frame( MLT_PRODUCER_SERVICE( this->alternative ), frame, 0 );
- // Create an empty frame
- *frame = mlt_frame_init( );
+ // Verify
+ if ( *frame != NULL )
+ data = mlt_properties_get_data( MLT_FRAME_PROPERTIES( *frame ), "dv_data", NULL );
+ }
- // Seek and fetch
- if ( this->fd != 0 &&
- lseek( this->fd, offset, SEEK_SET ) == offset &&
- read_frame( this->fd, data, &this->is_pal ) )
+ if ( data != NULL )
{
// Get the frames properties
- mlt_properties properties = mlt_frame_properties( *frame );
-
+ mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
+
// Get a dv_decoder
dv_decoder_t *dv_decoder = dv_decoder_alloc( );
- // Pass the dv data
- mlt_properties_set_data( properties, "dv_data", data, FRAME_SIZE_625_50, ( mlt_destructor )mlt_pool_release, NULL );
+ mlt_properties_set_int( properties, "test_image", 0 );
+ mlt_properties_set_int( properties, "test_audio", 0 );
// Update other info on the frame
mlt_properties_set_int( properties, "width", 720 );
mlt_properties_set_int( properties, "height", this->is_pal ? 576 : 480 );
- mlt_properties_set_int( properties, "top_field_first", 0 );
-
+ mlt_properties_set_int( properties, "top_field_first", !this->is_pal ? 0 : ( data[ 5 ] & 0x07 ) == 0 ? 0 : 1 );
+
// Parse the header for meta info
dv_parse_header( dv_decoder, data );
- mlt_properties_set_int( properties, "progressive", dv_is_progressive( dv_decoder ) );
+ //mlt_properties_set_int( properties, "progressive", dv_is_progressive( dv_decoder ) );
mlt_properties_set_double( properties, "aspect_ratio",
- dv_format_wide( dv_decoder ) ? ( this->is_pal ? 512.0/351.0 : 96.0/79.0 ) : ( this->is_pal ? 128.0/117.0 : 72.0/79.0 ) );
+ dv_format_wide( dv_decoder ) ? ( this->is_pal ? 118.0/81.0 : 40.0/33.0 ) : ( this->is_pal ? 59.0/54.0 : 10.0/11.0 ) );
+
- // Hmm - register audio callback
- ( *frame )->get_audio = producer_get_audio;
+ mlt_properties_set_int( properties, "frequency", dv_decoder->audio->frequency );
+ mlt_properties_set_int( properties, "channels", dv_decoder->audio->num_channels );
+ // Hmm - register audio callback
+ mlt_frame_push_audio( *frame, producer_get_audio );
+
// Push the quality string
- mlt_frame_push_service( *frame, mlt_properties_get( mlt_producer_properties( producer ), "quality" ) );
-
+ mlt_frame_push_service( *frame, mlt_properties_get( MLT_PRODUCER_PROPERTIES( producer ), "quality" ) );
+
// Push the get_image method on to the stack
mlt_frame_push_get_image( *frame, producer_get_image );
-
+
// Return the decoder
dv_decoder_return( dv_decoder );
}
- else
- {
- mlt_pool_release( data );
- }
// Update timecode on the frame we're creating
mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
if ( this->fd > 0 )
close( this->fd );
+ if ( this->alternative )
+ mlt_producer_close( this->alternative );
+
// Close the parent
parent->close = NULL;
mlt_producer_close( parent );
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