1 /* $Id: common.c,v 1.15 2005/03/17 19:22:47 titer Exp $
3 This file is part of the HandBrake source code.
4 Homepage: <http://handbrake.fr/>.
5 It may be used under the terms of the GNU General Public License. */
15 /**********************************************************************
17 *********************************************************************/
18 hb_rate_t hb_video_rates[] =
19 { { "5", 5400000 }, { "10", 2700000 }, { "12", 2250000 },
20 { "15", 1800000 }, { "23.976", 1126125 }, { "24", 1125000 },
21 { "25", 1080000 }, { "29.97", 900900 } };
22 int hb_video_rates_count = sizeof( hb_video_rates ) /
25 hb_rate_t hb_audio_rates[] =
26 { { "22.05", 22050 }, { "24", 24000 }, { "32", 32000 },
27 { "44.1", 44100 }, { "48", 48000 } };
28 int hb_audio_rates_count = sizeof( hb_audio_rates ) /
30 int hb_audio_rates_default = 3; /* 44100 Hz */
32 hb_rate_t hb_audio_bitrates[] =
33 { { "32", 32 }, { "40", 40 }, { "48", 48 }, { "56", 56 },
34 { "64", 64 }, { "80", 80 }, { "96", 96 }, { "112", 112 },
35 { "128", 128 }, { "160", 160 }, { "192", 192 }, { "224", 224 },
36 { "256", 256 }, { "320", 320 }, { "384", 384 }, { "448", 448 },
37 { "512", 512 }, { "576", 576 }, { "640", 640 }, { "768", 768 } };
38 int hb_audio_bitrates_count = sizeof( hb_audio_bitrates ) /
40 int hb_audio_bitrates_default = 8; /* 128 kbps */
42 static hb_error_handler_t *error_handler = NULL;
44 hb_mixdown_t hb_audio_mixdowns[] =
45 { { "Mono", "HB_AMIXDOWN_MONO", "mono", HB_AMIXDOWN_MONO },
46 { "Stereo", "HB_AMIXDOWN_STEREO", "stereo", HB_AMIXDOWN_STEREO },
47 { "Dolby Surround", "HB_AMIXDOWN_DOLBY", "dpl1", HB_AMIXDOWN_DOLBY },
48 { "Dolby Pro Logic II", "HB_AMIXDOWN_DOLBYPLII", "dpl2", HB_AMIXDOWN_DOLBYPLII },
49 { "6-channel discrete", "HB_AMIXDOWN_6CH", "6ch", HB_AMIXDOWN_6CH }
51 int hb_audio_mixdowns_count = sizeof( hb_audio_mixdowns ) /
52 sizeof( hb_mixdown_t );
54 int hb_mixdown_get_mixdown_from_short_name( const char * short_name )
57 for (i = 0; i < hb_audio_mixdowns_count; i++)
59 if (strcmp(hb_audio_mixdowns[i].short_name, short_name) == 0)
61 return hb_audio_mixdowns[i].amixdown;
67 const char * hb_mixdown_get_short_name_from_mixdown( int amixdown )
70 for (i = 0; i < hb_audio_mixdowns_count; i++)
72 if (hb_audio_mixdowns[i].amixdown == amixdown)
74 return hb_audio_mixdowns[i].short_name;
80 // Given an input bitrate, find closest match in the set of allowed bitrates
81 int hb_find_closest_audio_bitrate(int bitrate)
86 // result is highest rate if none found during search.
87 // rate returned will always be <= rate asked for.
88 result = hb_audio_bitrates[0].rate;
89 for (ii = hb_audio_bitrates_count-1; ii >= 0; ii++)
91 if (bitrate >= hb_audio_bitrates[ii].rate)
93 result = hb_audio_bitrates[ii].rate;
100 // Get the bitrate low and high limits for a codec/samplerate/mixdown triplet
101 void hb_get_audio_bitrate_limits(uint32_t codec, int samplerate, int mixdown, int *low, int *high)
105 channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(mixdown);
109 *low = 32 * channels;
113 case HB_ACODEC_CA_AAC:
114 *low = channels * 40;
115 if (samplerate <= 44100)
116 *low = channels * 32;
117 if (samplerate <= 24000)
118 *low = channels * 16;
119 *high = hb_audio_bitrates[hb_audio_bitrates_count-1].rate;
123 *low = 32 * channels;
124 *high = 160 * channels;
129 case HB_ACODEC_VORBIS:
130 *low = channels * 16;
131 *high = hb_audio_bitrates[hb_audio_bitrates_count-1].rate;
132 if (samplerate > 24000)
136 // Vorbis minimum is around 30kbps/ch for 6ch
137 // at rates > 24k (32k/44.1k/48k)
138 *low = 32 * channels;
142 // Allow 24kbps mono and 48kbps stereo at rates > 24k
144 *low = 24 * channels;
150 *low = hb_audio_bitrates[0].rate;
151 *high = hb_audio_bitrates[hb_audio_bitrates_count-1].rate;
156 // Given an input bitrate, sanitize it. Check low and high limits and
157 // make sure it is in the set of allowed bitrates.
158 int hb_get_best_audio_bitrate( uint32_t codec, int bitrate, int samplerate, int mixdown)
162 hb_get_audio_bitrate_limits(codec, samplerate, mixdown, &low, &high);
167 bitrate = hb_find_closest_audio_bitrate(bitrate);
171 // Get the default bitrate for a given codec/samplerate/mixdown triplet.
172 int hb_get_default_audio_bitrate( uint32_t codec, int samplerate, int mixdown )
174 int bitrate, channels;
177 channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(mixdown);
179 // Min bitrate is established such that we get good quality
180 // audio as a minimum.
181 sr_shift = (samplerate <= 24000) ? 1 : 0;
188 else if (channels <= 2)
194 bitrate = channels * 80;
196 bitrate >>= sr_shift;
197 bitrate = hb_get_best_audio_bitrate( codec, bitrate, samplerate, mixdown );
201 int hb_get_best_mixdown( uint32_t codec, int layout )
203 switch (layout & HB_INPUT_CH_LAYOUT_DISCRETE_NO_LFE_MASK)
205 // stereo input or something not handled below
207 case HB_INPUT_CH_LAYOUT_STEREO:
208 // mono gets mixed up to stereo & more than stereo gets mixed down
209 return HB_AMIXDOWN_STEREO;
212 case HB_INPUT_CH_LAYOUT_MONO:
213 // everything else passes through
214 return HB_AMIXDOWN_MONO;
216 // dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input
217 // the A52 flags don't allow for a way to distinguish between DPL1 and
218 // DPL2 on a DVD so we always assume a DPL1 source for A52_DOLBY.
219 case HB_INPUT_CH_LAYOUT_DOLBY:
220 return HB_AMIXDOWN_DOLBY;
222 // 4 channel discrete
223 case HB_INPUT_CH_LAYOUT_2F2R:
224 case HB_INPUT_CH_LAYOUT_3F1R:
225 // a52dec and libdca can't upmix to 6ch,
226 // so we must downmix these.
227 return HB_AMIXDOWN_DOLBYPLII;
229 // 5 or 6 channel discrete
230 case HB_INPUT_CH_LAYOUT_3F2R:
231 if ( ! ( layout & HB_INPUT_CH_LAYOUT_HAS_LFE ) )
233 // we don't do 5 channel discrete so mixdown to DPLII
234 // a52dec and libdca can't upmix to 6ch,
235 // so we must downmix this.
236 return HB_AMIXDOWN_DOLBYPLII;
243 return HB_AMIXDOWN_DOLBYPLII;
246 return HB_AMIXDOWN_6CH;
252 int hb_get_default_mixdown( uint32_t codec, int layout )
254 switch (layout & HB_INPUT_CH_LAYOUT_DISCRETE_NO_LFE_MASK)
256 // stereo input or something not handled below
258 case HB_INPUT_CH_LAYOUT_STEREO:
259 // mono gets mixed up to stereo & more than stereo gets mixed down
260 return HB_AMIXDOWN_STEREO;
263 case HB_INPUT_CH_LAYOUT_MONO:
264 // everything else passes through
265 return HB_AMIXDOWN_MONO;
267 // dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input
268 // the A52 flags don't allow for a way to distinguish between DPL1 and
269 // DPL2 on a DVD so we always assume a DPL1 source for A52_DOLBY.
270 case HB_INPUT_CH_LAYOUT_DOLBY:
271 return HB_AMIXDOWN_DOLBY;
273 // 4 channel discrete
274 case HB_INPUT_CH_LAYOUT_2F2R:
275 case HB_INPUT_CH_LAYOUT_3F1R:
276 // a52dec and libdca can't upmix to 6ch,
277 // so we must downmix these.
278 return HB_AMIXDOWN_DOLBYPLII;
280 // 5 or 6 channel discrete
281 case HB_INPUT_CH_LAYOUT_3F2R:
282 if ( ! ( layout & HB_INPUT_CH_LAYOUT_HAS_LFE ) )
284 // we don't do 5 channel discrete so mixdown to DPLII
285 // a52dec and libdca can't upmix to 6ch,
286 // so we must downmix this.
287 return HB_AMIXDOWN_DOLBYPLII;
294 return HB_AMIXDOWN_6CH;
297 return HB_AMIXDOWN_DOLBYPLII;
303 /**********************************************************************
305 **********************************************************************
306 * Given a numerator (num) and a denominator (den), reduce them to an
307 * equivalent fraction and store the result in x and y.
308 *********************************************************************/
309 void hb_reduce( int *x, int *y, int num, int den )
311 // find the greatest common divisor of num & den by Euclid's algorithm
312 int n = num, d = den;
320 // at this point n is the gcd. if it's non-zero remove it from num
321 // and den. Otherwise just return the original values.
334 /**********************************************************************
336 **********************************************************************
337 * Given the output width (if HB_KEEP_WIDTH) or height
338 * (HB_KEEP_HEIGHT) and the current crop values, calculates the
339 * correct height or width in order to respect the DVD aspect ratio
340 *********************************************************************/
341 void hb_fix_aspect( hb_job_t * job, int keep )
343 hb_title_t * title = job->title;
349 /* don't do anything unless the title has complete size info */
350 if ( title->height == 0 || title->width == 0 || title->aspect == 0 )
352 hb_log( "hb_fix_aspect: incomplete info for title %d: "
353 "height = %d, width = %d, aspect = %.3f",
354 title->index, title->height, title->width, title->aspect );
358 // min_width and min_height should be multiples of modulus
361 modulus = job->modulus ? job->modulus : 16;
363 for( i = 0; i < 4; i++ )
365 // Sanity check crop values are zero or positive multiples of 2
369 job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->height / 2 ) - ( min_height / 2 ) ) );
370 job->crop[i] = MAX( 0, job->crop[i] );
375 job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->width / 2 ) - ( min_width / 2 ) ) );
376 job->crop[i] = MAX( 0, job->crop[i] );
380 double par = (double)title->width / ( (double)title->height * title->aspect );
381 double cropped_sar = (double)( title->height - job->crop[0] - job->crop[1] ) /
382 (double)( title->width - job->crop[2] - job->crop[3] );
383 double ar = par * cropped_sar;
385 // Dimensions must be greater than minimum and multiple of modulus
386 if( keep == HB_KEEP_WIDTH )
388 job->width = MULTIPLE_MOD( job->width, modulus );
389 job->width = MAX( min_width, job->width );
390 job->height = MULTIPLE_MOD( (uint64_t)( (double)job->width * ar ), modulus );
391 job->height = MAX( min_height, job->height );
395 job->height = MULTIPLE_MOD( job->height, modulus );
396 job->height = MAX( min_height, job->height );
397 job->width = MULTIPLE_MOD( (uint64_t)( (double)job->height / ar ), modulus );
398 job->width = MAX( min_width, job->width );
402 /**********************************************************************
404 **********************************************************************
406 *********************************************************************/
407 int hb_calc_bitrate( hb_job_t * job, int size )
409 int64_t avail = (int64_t) size * 1024 * 1024;
412 int samples_per_frame;
415 hb_title_t * title = job->title;
416 hb_chapter_t * chapter;
419 /* How many overhead bytes are used for each frame
439 /* Get the duration in seconds */
441 for( i = job->chapter_start; i <= job->chapter_end; i++ )
443 chapter = hb_list_item( title->list_chapter, i - 1 );
444 length += chapter->duration;
451 hb_interjob_t * interjob = hb_interjob_get( job->h );
452 avail = job->vbitrate * 125 * length;
453 avail += length * interjob->vrate * overhead / interjob->vrate_base;
457 avail -= length * job->vrate * overhead / job->vrate_base;
464 for( i = 0; i < hb_list_count(job->list_audio); i++ )
468 audio = hb_list_item( job->list_audio, i);
470 /* How many audio samples we put in each frame */
471 switch( audio->config.out.codec )
474 case HB_ACODEC_CA_AAC:
475 case HB_ACODEC_VORBIS:
476 samples_per_frame = 1024;
479 samples_per_frame = 1152;
481 case HB_ACODEC_AC3_PASS:
482 case HB_ACODEC_DCA_PASS:
485 samples_per_frame = 1536;
491 if( audio->config.out.codec == HB_ACODEC_AC3_PASS ||
492 audio->config.out.codec == HB_ACODEC_DCA_PASS)
495 * For pass through we take the bitrate from the input audio
496 * bitrate as we are simply passing it through.
498 abitrate = audio->config.in.bitrate / 8;
503 * Where we are transcoding the audio we use the destination
506 abitrate = audio->config.out.bitrate * 1000 / 8;
508 avail -= length * abitrate;
511 avail -= length * audio->config.out.samplerate * overhead / samples_per_frame;
520 return ( avail / ( 125 * length ) );
523 /**********************************************************************
524 * hb_list implementation
525 **********************************************************************
526 * Basic and slow, but enough for what we need
527 *********************************************************************/
529 #define HB_LIST_DEFAULT_SIZE 20
533 /* Pointers to items in the list */
536 /* How many (void *) allocated in 'items' */
539 /* How many valid pointers in 'items' */
543 /**********************************************************************
545 **********************************************************************
546 * Allocates an empty list ready for HB_LIST_DEFAULT_SIZE items
547 *********************************************************************/
548 hb_list_t * hb_list_init()
552 l = calloc( sizeof( hb_list_t ), 1 );
553 l->items = calloc( HB_LIST_DEFAULT_SIZE * sizeof( void * ), 1 );
554 l->items_alloc = HB_LIST_DEFAULT_SIZE;
559 /**********************************************************************
561 **********************************************************************
562 * Returns the number of items currently in the list
563 *********************************************************************/
564 int hb_list_count( hb_list_t * l )
566 return l->items_count;
569 /**********************************************************************
571 **********************************************************************
572 * Adds an item at the end of the list, making it bigger if necessary.
573 * Can safely be called with a NULL pointer to add, it will be ignored.
574 *********************************************************************/
575 void hb_list_add( hb_list_t * l, void * p )
582 if( l->items_count == l->items_alloc )
584 /* We need a bigger boat */
585 l->items_alloc += HB_LIST_DEFAULT_SIZE;
586 l->items = realloc( l->items,
587 l->items_alloc * sizeof( void * ) );
590 l->items[l->items_count] = p;
594 /**********************************************************************
596 **********************************************************************
597 * Remove an item from the list. Bad things will happen if called
598 * with a NULL pointer or if the item is not in the list.
599 *********************************************************************/
600 void hb_list_rem( hb_list_t * l, void * p )
604 /* Find the item in the list */
605 for( i = 0; i < l->items_count; i++ )
607 if( l->items[i] == p )
613 /* Shift all items after it sizeof( void * ) bytes earlier */
614 memmove( &l->items[i], &l->items[i+1],
615 ( l->items_count - i - 1 ) * sizeof( void * ) );
620 /**********************************************************************
622 **********************************************************************
623 * Returns item at position i, or NULL if there are not that many
625 *********************************************************************/
626 void * hb_list_item( hb_list_t * l, int i )
628 if( i < 0 || i >= l->items_count )
636 /**********************************************************************
638 **********************************************************************
639 * Assuming all items are of type hb_buffer_t, returns the total
640 * number of bytes in the list
641 *********************************************************************/
642 int hb_list_bytes( hb_list_t * l )
649 for( i = 0; i < hb_list_count( l ); i++ )
651 buf = hb_list_item( l, i );
652 ret += buf->size - buf->cur;
658 /**********************************************************************
660 **********************************************************************
661 * Assuming all items are of type hb_buffer_t, copy <size> bytes from
662 * the list to <dst>, keeping the list unmodified.
663 *********************************************************************/
664 void hb_list_seebytes( hb_list_t * l, uint8_t * dst, int size )
671 for( i = 0, copied = 0; copied < size; i++ )
673 buf = hb_list_item( l, i );
674 copying = MIN( buf->size - buf->cur, size - copied );
675 memcpy( &dst[copied], &buf->data[buf->cur], copying );
680 /**********************************************************************
682 **********************************************************************
683 * Assuming all items are of type hb_buffer_t, copy <size> bytes from
684 * the list to <dst>. What's copied is removed from the list.
685 * The variable pointed by <pts> is set to the PTS of the buffer the
686 * first byte has been got from.
687 * The variable pointed by <pos> is set to the position of that byte
689 *********************************************************************/
690 void hb_list_getbytes( hb_list_t * l, uint8_t * dst, int size,
691 uint64_t * pts, uint64_t * pos )
698 /* So we won't have to deal with NULL pointers */
699 uint64_t dummy1, dummy2;
701 if( !pts ) pts = &dummy1;
702 if( !pos ) pos = &dummy2;
704 for( copied = 0, has_pts = 0; copied < size; )
706 buf = hb_list_item( l, 0 );
707 copying = MIN( buf->size - buf->cur, size - copied );
708 memcpy( &dst[copied], &buf->data[buf->cur], copying );
718 if( buf->cur >= buf->size )
720 hb_list_rem( l, buf );
721 hb_buffer_close( &buf );
728 /**********************************************************************
730 **********************************************************************
731 * Assuming all items are of type hb_buffer_t, close them all and
733 *********************************************************************/
734 void hb_list_empty( hb_list_t ** _l )
739 while( ( b = hb_list_item( l, 0 ) ) )
742 hb_buffer_close( &b );
748 /**********************************************************************
750 **********************************************************************
751 * Free memory allocated by hb_list_init. Does NOT free contents of
752 * items still in the list.
753 *********************************************************************/
754 void hb_list_close( hb_list_t ** _l )
764 /**********************************************************************
766 **********************************************************************
767 * If verbose mode is one, print message with timestamp. Messages
768 * longer than 180 characters are stripped ;p
769 *********************************************************************/
770 void hb_log( char * log, ... )
772 char string[362]; /* 360 chars + \n + \0 */
777 if( !getenv( "HB_DEBUG" ) )
779 /* We don't want to print it */
785 now = localtime( &_now );
786 sprintf( string, "[%02d:%02d:%02d] ",
787 now->tm_hour, now->tm_min, now->tm_sec );
789 /* Convert the message to a string */
790 va_start( args, log );
791 vsnprintf( string + 11, 349, log, args );
794 /* Add the end of line */
795 strcat( string, "\n" );
798 fprintf( stderr, "%s", string );
801 int global_verbosity_level; //Necessary for hb_deep_log
802 /**********************************************************************
804 **********************************************************************
805 * If verbose mode is >= level, print message with timestamp. Messages
806 * longer than 360 characters are stripped ;p
807 *********************************************************************/
808 void hb_deep_log( hb_debug_level_t level, char * log, ... )
810 char string[362]; /* 360 chars + \n + \0 */
815 if( global_verbosity_level < level )
823 now = localtime( &_now );
824 sprintf( string, "[%02d:%02d:%02d] ",
825 now->tm_hour, now->tm_min, now->tm_sec );
827 /* Convert the message to a string */
828 va_start( args, log );
829 vsnprintf( string + 11, 349, log, args );
832 /* Add the end of line */
833 strcat( string, "\n" );
836 fprintf( stderr, "%s", string );
839 /**********************************************************************
841 **********************************************************************
842 * Using whatever output is available display this error.
843 *********************************************************************/
844 void hb_error( char * log, ... )
846 char string[181]; /* 180 chars + \0 */
847 char rep_string[181];
848 static char last_string[181];
849 static int last_error_count = 0;
850 static uint64_t last_series_error_time = 0;
851 static hb_lock_t *mutex = 0;
855 /* Convert the message to a string */
856 va_start( args, log );
857 vsnprintf( string, 180, log, args );
862 mutex = hb_lock_init();
867 time_now = hb_get_date();
869 if( strcmp( string, last_string) == 0 )
872 * The last error and this one are the same, don't log it
873 * just count it instead, unless it was more than one second
877 if( last_series_error_time + ( 1000 * 1 ) > time_now )
885 * A new error, or the same one more than 10sec since the last one
886 * did we have any of the same counted up?
888 if( last_error_count > 0 )
891 * Print out the last error to ensure context for the last
896 error_handler( last_string );
898 hb_log( "%s", last_string );
901 if( last_error_count > 1 )
904 * Only print out the repeat message for more than 2 of the
905 * same, since we just printed out two of them already.
907 snprintf( rep_string, 180, "Last error repeated %d times",
908 last_error_count - 1 );
912 error_handler( rep_string );
914 hb_log( "%s", rep_string );
918 last_error_count = 0;
921 last_series_error_time = time_now;
923 strcpy( last_string, string );
926 * Got the error in a single string, send it off to be dispatched.
930 error_handler( string );
932 hb_log( "%s", string );
938 void hb_register_error_handler( hb_error_handler_t * handler )
940 error_handler = handler;
943 /**********************************************************************
945 **********************************************************************
947 *********************************************************************/
948 hb_title_t * hb_title_init( char * path, int index )
952 t = calloc( sizeof( hb_title_t ), 1 );
955 t->list_audio = hb_list_init();
956 t->list_chapter = hb_list_init();
957 t->list_subtitle = hb_list_init();
958 t->list_attachment = hb_list_init();
959 strcat( t->path, path );
960 // default to decoding mpeg2
962 t->video_codec = WORK_DECMPEG2;
967 /**********************************************************************
969 **********************************************************************
971 *********************************************************************/
972 void hb_title_close( hb_title_t ** _t )
974 hb_title_t * t = *_t;
976 hb_chapter_t * chapter;
977 hb_subtitle_t * subtitle;
978 hb_attachment_t * attachment;
980 while( ( audio = hb_list_item( t->list_audio, 0 ) ) )
982 hb_list_rem( t->list_audio, audio );
985 hb_list_close( &t->list_audio );
987 while( ( chapter = hb_list_item( t->list_chapter, 0 ) ) )
989 hb_list_rem( t->list_chapter, chapter );
992 hb_list_close( &t->list_chapter );
994 while( ( subtitle = hb_list_item( t->list_subtitle, 0 ) ) )
996 hb_list_rem( t->list_subtitle, subtitle );
997 if ( subtitle->extradata )
999 free( subtitle->extradata );
1000 subtitle->extradata = NULL;
1004 hb_list_close( &t->list_subtitle );
1006 while( ( attachment = hb_list_item( t->list_attachment, 0 ) ) )
1008 hb_list_rem( t->list_attachment, attachment );
1009 if ( attachment->name )
1011 free( attachment->name );
1012 attachment->name = NULL;
1014 if ( attachment->data )
1016 free( attachment->data );
1017 attachment->data = NULL;
1021 hb_list_close( &t->list_attachment );
1025 if( t->metadata->coverart )
1027 free( t->metadata->coverart );
1029 free( t->metadata );
1036 /**********************************************************************
1038 **********************************************************************
1040 *********************************************************************/
1041 void hb_filter_close( hb_filter_object_t ** _f )
1043 hb_filter_object_t * f = *_f;
1045 f->close( f->private_data );
1050 free( f->settings );
1056 /**********************************************************************
1058 **********************************************************************
1060 *********************************************************************/
1061 hb_audio_t *hb_audio_copy(const hb_audio_t *src)
1063 hb_audio_t *audio = NULL;
1067 audio = calloc(1, sizeof(*audio));
1068 memcpy(audio, src, sizeof(*audio));
1073 /**********************************************************************
1075 **********************************************************************
1077 *********************************************************************/
1078 void hb_audio_config_init(hb_audio_config_t * audiocfg)
1080 /* Set read only paramaters to invalid values */
1081 audiocfg->in.codec = 0xDEADBEEF;
1082 audiocfg->in.bitrate = -1;
1083 audiocfg->in.samplerate = -1;
1084 audiocfg->in.channel_layout = 0;
1085 audiocfg->in.version = 0;
1086 audiocfg->in.mode = 0;
1087 audiocfg->flags.ac3 = 0;
1088 audiocfg->lang.description[0] = 0;
1089 audiocfg->lang.simple[0] = 0;
1090 audiocfg->lang.iso639_2[0] = 0;
1092 /* Initalize some sensable defaults */
1093 audiocfg->in.track = audiocfg->out.track = 0;
1094 audiocfg->out.codec = HB_ACODEC_FAAC;
1095 audiocfg->out.bitrate = 128;
1096 audiocfg->out.samplerate = 44100;
1097 audiocfg->out.mixdown = HB_AMIXDOWN_DOLBYPLII;
1098 audiocfg->out.dynamic_range_compression = 0;
1099 audiocfg->out.name = NULL;
1102 /**********************************************************************
1104 **********************************************************************
1106 *********************************************************************/
1107 int hb_audio_add(const hb_job_t * job, const hb_audio_config_t * audiocfg)
1109 hb_title_t *title = job->title;
1112 audio = hb_audio_copy( hb_list_item( title->list_audio, audiocfg->in.track ) );
1119 if( (audiocfg->in.bitrate != -1) && (audiocfg->in.codec != 0xDEADBEEF) )
1121 /* This most likely means the client didn't call hb_audio_config_init
1127 /* Really shouldn't ignore the passed out track, but there is currently no
1128 * way to handle duplicates or out-of-order track numbers.
1130 audio->config.out.track = hb_list_count(job->list_audio) + 1;
1131 audio->config.out.codec = audiocfg->out.codec;
1132 if( (audiocfg->out.codec & HB_ACODEC_MASK) == audio->config.in.codec &&
1133 (audiocfg->out.codec & HB_ACODEC_PASS_FLAG ) )
1135 /* Pass-through, copy from input. */
1136 audio->config.out.samplerate = audio->config.in.samplerate;
1137 audio->config.out.bitrate = audio->config.in.bitrate;
1138 audio->config.out.dynamic_range_compression = 0;
1139 audio->config.out.mixdown = 0;
1143 /* Non pass-through, use what is given. */
1144 audio->config.out.codec &= ~HB_ACODEC_PASS_FLAG;
1145 audio->config.out.samplerate = audiocfg->out.samplerate;
1146 audio->config.out.bitrate = audiocfg->out.bitrate;
1147 audio->config.out.dynamic_range_compression = audiocfg->out.dynamic_range_compression;
1148 audio->config.out.mixdown = audiocfg->out.mixdown;
1151 hb_list_add(job->list_audio, audio);
1155 hb_audio_config_t * hb_list_audio_config_item(hb_list_t * list, int i)
1157 hb_audio_t *audio = NULL;
1159 if( (audio = hb_list_item(list, i)) )
1160 return &(audio->config);
1165 /**********************************************************************
1167 **********************************************************************
1169 *********************************************************************/
1170 hb_subtitle_t *hb_subtitle_copy(const hb_subtitle_t *src)
1172 hb_subtitle_t *subtitle = NULL;
1176 subtitle = calloc(1, sizeof(*subtitle));
1177 memcpy(subtitle, src, sizeof(*subtitle));
1178 if ( src->extradata )
1180 subtitle->extradata = malloc( src->extradata_size );
1181 memcpy( subtitle->extradata, src->extradata, src->extradata_size );
1187 /**********************************************************************
1189 **********************************************************************
1191 *********************************************************************/
1192 int hb_subtitle_add(const hb_job_t * job, const hb_subtitle_config_t * subtitlecfg, int track)
1194 hb_title_t *title = job->title;
1195 hb_subtitle_t *subtitle;
1197 subtitle = hb_subtitle_copy( hb_list_item( title->list_subtitle, track ) );
1198 if( subtitle == NULL )
1203 subtitle->config = *subtitlecfg;
1204 hb_list_add(job->list_subtitle, subtitle);
1208 int hb_srt_add( const hb_job_t * job,
1209 const hb_subtitle_config_t * subtitlecfg,
1212 hb_subtitle_t *subtitle;
1213 iso639_lang_t *language = NULL;
1216 subtitle = calloc( 1, sizeof( *subtitle ) );
1218 subtitle->id = (hb_list_count(job->list_subtitle) << 8) | 0xFF;
1219 subtitle->format = TEXTSUB;
1220 subtitle->source = SRTSUB;
1222 language = lang_for_code2( lang );
1227 strcpy( subtitle->lang, language->eng_name );
1228 strncpy( subtitle->iso639_2, lang, 4 );
1230 subtitle->config = *subtitlecfg;
1231 subtitle->config.dest = PASSTHRUSUB;
1233 hb_list_add(job->list_subtitle, subtitle);
1239 char * hb_strdup_printf( char * fmt, ... )
1247 str = malloc( size );
1253 /* Try to print in the allocated space. */
1254 va_start( ap, fmt );
1255 len = vsnprintf( str, size, fmt, ap );
1258 /* If that worked, return the string. */
1259 if ( len > -1 && len < size )
1264 /* Else try again with more space. */
1265 if ( len > -1 ) /* glibc 2.1 */
1266 size = len + 1; /* precisely what is needed */
1267 else /* glibc 2.0 */
1268 size *= 2; /* twice the old size */
1269 tmp = realloc( str, size );
1280 /**********************************************************************
1281 * hb_attachment_copy
1282 **********************************************************************
1284 *********************************************************************/
1285 hb_attachment_t *hb_attachment_copy(const hb_attachment_t *src)
1287 hb_attachment_t *attachment = NULL;
1291 attachment = calloc(1, sizeof(*attachment));
1292 memcpy(attachment, src, sizeof(*attachment));
1295 attachment->name = strdup( src->name );
1299 attachment->data = malloc( src->size );
1300 memcpy( attachment->data, src->data, src->size );
1306 /**********************************************************************
1308 **********************************************************************
1309 * Converts a YCbCr pixel to an RGB pixel.
1311 * This conversion is lossy (due to rounding and clamping).
1314 * http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
1315 *********************************************************************/
1316 int hb_yuv2rgb(int yuv)
1321 y = (yuv >> 16) & 0xff;
1322 Cb = (yuv >> 8) & 0xff;
1325 r = 1.164 * (y - 16) + 2.018 * (Cb - 128);
1326 g = 1.164 * (y - 16) - 0.813 * (Cr - 128) - 0.391 * (Cb - 128);
1327 b = 1.164 * (y - 16) + 1.596 * (Cr - 128);
1329 r = (r < 0) ? 0 : r;
1330 g = (g < 0) ? 0 : g;
1331 b = (b < 0) ? 0 : b;
1333 r = (r > 255) ? 255 : r;
1334 g = (g > 255) ? 255 : g;
1335 b = (b > 255) ? 255 : b;
1337 return (r << 16) | (g << 8) | b;
1340 /**********************************************************************
1342 **********************************************************************
1343 * Converts an RGB pixel to a YCbCr pixel.
1345 * This conversion is lossy (due to rounding and clamping).
1348 * http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
1349 *********************************************************************/
1350 int hb_rgb2yuv(int rgb)
1355 r = (rgb >> 16) & 0xff;
1356 g = (rgb >> 8) & 0xff;
1359 y = 16. + ( 0.257 * r) + (0.504 * g) + (0.098 * b);
1360 Cb = 128. + (-0.148 * r) - (0.291 * g) + (0.439 * b);
1361 Cr = 128. + ( 0.439 * r) - (0.368 * g) - (0.071 * b);
1363 y = (y < 0) ? 0 : y;
1364 Cb = (Cb < 0) ? 0 : Cb;
1365 Cr = (Cr < 0) ? 0 : Cr;
1367 y = (y > 255) ? 255 : y;
1368 Cb = (Cb > 255) ? 255 : Cb;
1369 Cr = (Cr > 255) ? 255 : Cr;
1371 return (y << 16) | (Cb << 8) | Cr;
1374 const char * hb_subsource_name( int source )