X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fvorbis%2Fproducer_vorbis.c;h=b6346cf4e4564b731d9b914ff59adeb8048f58a6;hb=7ecd47eeebf87332a4892d167baff959f0f6a11a;hp=76671a2730d4334c3dc1ca65da5f0c4edaba0c40;hpb=f00476101550ec7d8e863f6516aa83bc1b524570;p=melted diff --git a/src/modules/vorbis/producer_vorbis.c b/src/modules/vorbis/producer_vorbis.c index 76671a2..b6346cf 100644 --- a/src/modules/vorbis/producer_vorbis.c +++ b/src/modules/vorbis/producer_vorbis.c @@ -3,25 +3,23 @@ * 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 */ -// Local header files -#include "producer_vorbis.h" - // MLT Header files +#include #include // vorbis Header files @@ -31,15 +29,45 @@ // System header files #include #include +#include // Forward references. -static int producer_open( mlt_producer this, char *file ); +static int producer_open( mlt_producer this, mlt_profile profile, char *file ); static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int index ); +/** Structure for metadata reading +*/ + +typedef struct _sw_metadata sw_metadata; + +struct _sw_metadata { + char * name; + char * content; +}; + +static sw_metadata *vorbis_metadata_from_str (char * str) +{ + sw_metadata * meta = NULL; + int i; + + for (i = 0; str[i]; i++) { + str[i] = tolower(str[i]); + if (str[i] == '=') { + str[i] = '\0'; + meta = malloc (sizeof (sw_metadata)); + meta->name = malloc( strlen(str) + 18 ); + sprintf(meta->name, "meta.attr.%s.markup", str); + meta->content = strdup (&str[i+1]); + break; + } + } + return meta; +} + /** Constructor for libvorbis. */ -mlt_producer producer_vorbis_init( char *file ) +mlt_producer producer_vorbis_init( mlt_profile profile, mlt_service_type type, const char *id, char *file ) { mlt_producer this = NULL; @@ -62,7 +90,7 @@ mlt_producer producer_vorbis_init( char *file ) this->get_frame = producer_get_frame; // Open the file - if ( producer_open( this, file ) != 0 ) + if ( producer_open( this, profile, file ) != 0 ) { // Clean up mlt_producer_close( this ); @@ -92,7 +120,7 @@ static void producer_file_close( void *file ) /** Open the file. */ -static int producer_open( mlt_producer this, char *file ) +static int producer_open( mlt_producer this, mlt_profile profile, char *file ) { // FILE pointer for file FILE *input = fopen( file, "r" ); @@ -118,17 +146,32 @@ static int producer_open( mlt_producer this, char *file ) // Assign the ov structure mlt_properties_set_data( properties, "ogg_vorbis_file", ov, 0, producer_file_close, NULL ); + // Read metadata + sw_metadata * metadata = NULL; + char **ptr = ov_comment(ov, -1)->user_comments; + while(*ptr) { + metadata = vorbis_metadata_from_str (*ptr); + if (metadata != NULL) + mlt_properties_set(properties, metadata->name, metadata->content); + ++ptr; + } + if ( ov_seekable( ov ) ) { // Get the length of the file double length = ov_time_total( ov, -1 ); // We will treat everything with the producer fps - double fps = mlt_properties_get_double( properties, "fps" ); + double fps = mlt_profile_fps( profile ); // Set out and length of file mlt_properties_set_position( properties, "out", ( length * fps ) - 1 ); mlt_properties_set_position( properties, "length", ( length * fps ) ); + + // Get the vorbis info + vorbis_info *vi = ov_info( ov, -1 ); + mlt_properties_set_int( properties, "frequency", (int) vi->rate ); + mlt_properties_set_int( properties, "channels", vi->channels ); } } else @@ -149,14 +192,7 @@ static int producer_open( mlt_producer this, char *file ) static double producer_time_of_frame( mlt_producer this, mlt_position position ) { - // Get the properties - mlt_properties properties = MLT_PRODUCER_PROPERTIES( this ); - - // Obtain the fps - double fps = mlt_properties_get_double( properties, "fps" ); - - // Do the calc - return ( double )position / fps; + return ( double )position / mlt_producer_get_fps( this ); } /** Get the audio from a frame. @@ -171,7 +207,7 @@ static int producer_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_form mlt_position position = mlt_properties_get_position( frame_properties, "vorbis_position" ); // Get the producer - mlt_producer this = mlt_properties_get_data( frame_properties, "vorbis_producer", NULL ); + mlt_producer this = mlt_frame_pop_audio( frame ); // Get the producer properties mlt_properties properties = MLT_PRODUCER_PROPERTIES( this ); @@ -183,7 +219,7 @@ static int producer_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_form mlt_position expected = mlt_properties_get_position( properties, "audio_expected" ); // Get the fps for this producer - double fps = mlt_properties_get_double( properties, "fps" ); + double fps = mlt_producer_get_fps( this ); // Get the vorbis info vorbis_info *vi = ov_info( ov, -1 ); @@ -278,7 +314,6 @@ static int producer_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_form } else { - frame->get_audio = NULL; mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples ); audio_used = 0; } @@ -289,7 +324,6 @@ static int producer_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_form else { // Get silence and don't touch the context - frame->get_audio = NULL; *samples = mlt_sample_calculator( fps, *frequency, position ); mlt_frame_get_audio( frame, buffer, format, frequency, channels, samples ); } @@ -300,37 +334,27 @@ static int producer_get_audio( mlt_frame frame, int16_t **buffer, mlt_audio_form return 0; } -/** Set up audio handling. -*/ - -static void producer_set_up_audio( mlt_producer this, mlt_frame frame ) -{ - // Get the properties - mlt_properties properties = MLT_FRAME_PROPERTIES( frame ); - - // Set the audio method - frame->get_audio = producer_get_audio; - - // Set the producer on the frame - mlt_properties_set_data( properties, "vorbis_producer", this, 0, NULL, NULL ); -} - /** Our get frame implementation. */ static int producer_get_frame( mlt_producer this, mlt_frame_ptr frame, int index ) { // Create an empty frame - *frame = mlt_frame_init( ); + *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( this ) ); // Update timecode on the frame we're creating mlt_frame_set_position( *frame, mlt_producer_position( this ) ); // Set the position of this producer - mlt_properties_set_position( MLT_FRAME_PROPERTIES( *frame ), "vorbis_position", mlt_producer_position( this ) ); + mlt_properties frame_properties = MLT_FRAME_PROPERTIES( *frame ); + mlt_properties_set_position( frame_properties, "vorbis_position", mlt_producer_frame( this ) ); // Set up the audio - producer_set_up_audio( this, *frame ); + mlt_frame_push_audio( *frame, this ); + mlt_frame_push_audio( *frame, producer_get_audio ); + + // Pass audio properties to the frame + mlt_properties_pass_list( frame_properties, MLT_PRODUCER_PROPERTIES( this ), "frequency, channels" ); // Calculate the next timecode mlt_producer_prepare_next( this );