X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fdv%2Fproducer_libdv.c;h=0a6189fb12b938cf32fd310da2d47a6270d62455;hb=bf3264b9e340ba5c11cbf59835a8af3db94e0cc2;hp=ae968468beddee5a8f5c5a1b09488ac7fa7a11c1;hpb=f00476101550ec7d8e863f6516aa83bc1b524570;p=melted diff --git a/src/modules/dv/producer_libdv.c b/src/modules/dv/producer_libdv.c index ae96846..0a6189f 100644 --- a/src/modules/dv/producer_libdv.c +++ b/src/modules/dv/producer_libdv.c @@ -3,19 +3,19 @@ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited * Author: Charles Yates * - * 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" @@ -79,6 +79,7 @@ dv_decoder_t *dv_decoder_alloc( ) 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 ); @@ -122,6 +123,7 @@ struct producer_libdv_s 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 ); @@ -135,27 +137,47 @@ mlt_producer producer_libdv_init( char *filename ) 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 ); + // 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; } @@ -236,7 +258,7 @@ static int producer_collect_info( producer_libdv this ) // 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 ); @@ -278,12 +300,12 @@ static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_forma // 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 ); @@ -298,8 +320,9 @@ static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_forma // 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 ); @@ -314,6 +337,7 @@ static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_forma // Assign result *buffer = image; + *format = mlt_image_rgb24; } // Return the decoder @@ -374,7 +398,6 @@ static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_forma 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 ); } @@ -386,59 +409,91 @@ static int producer_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_forma 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 ); - + // 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", !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_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" ) ); - + // 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 ) ); @@ -458,6 +513,9 @@ static void producer_close( mlt_producer parent ) 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 );