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;
126 else if (channels >= 2)
132 case HB_ACODEC_VORBIS:
133 *low = channels * 16;
134 *high = hb_audio_bitrates[hb_audio_bitrates_count-1].rate;
135 if (samplerate > 24000)
139 // Vorbis minimum is around 30kbps/ch for 6ch
140 // at rates > 24k (32k/44.1k/48k)
141 *low = 32 * channels;
145 // Allow 24kbps mono and 48kbps stereo at rates > 24k
147 *low = 24 * channels;
153 *low = hb_audio_bitrates[0].rate;
154 *high = hb_audio_bitrates[hb_audio_bitrates_count-1].rate;
159 // Given an input bitrate, sanitize it. Check low and high limits and
160 // make sure it is in the set of allowed bitrates.
161 int hb_get_best_audio_bitrate( uint32_t codec, int bitrate, int samplerate, int mixdown)
165 hb_get_audio_bitrate_limits(codec, samplerate, mixdown, &low, &high);
170 bitrate = hb_find_closest_audio_bitrate(bitrate);
174 // Get the default bitrate for a given codec/samplerate/mixdown triplet.
175 int hb_get_default_audio_bitrate( uint32_t codec, int samplerate, int mixdown )
177 int bitrate, channels;
180 channels = HB_AMIXDOWN_GET_DISCRETE_CHANNEL_COUNT(mixdown);
182 // Min bitrate is established such that we get good quality
183 // audio as a minimum.
184 sr_shift = (samplerate <= 24000) ? 1 : 0;
191 else if (channels <= 2)
197 bitrate = channels * 80;
199 bitrate >>= sr_shift;
200 bitrate = hb_get_best_audio_bitrate( codec, bitrate, samplerate, mixdown );
204 int hb_get_best_mixdown( uint32_t codec, int layout )
206 switch (layout & HB_INPUT_CH_LAYOUT_DISCRETE_NO_LFE_MASK)
208 // stereo input or something not handled below
210 case HB_INPUT_CH_LAYOUT_STEREO:
211 // mono gets mixed up to stereo & more than stereo gets mixed down
212 return HB_AMIXDOWN_STEREO;
215 case HB_INPUT_CH_LAYOUT_MONO:
216 // everything else passes through
217 return HB_AMIXDOWN_MONO;
219 // dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input
220 // the A52 flags don't allow for a way to distinguish between DPL1 and
221 // DPL2 on a DVD so we always assume a DPL1 source for A52_DOLBY.
222 case HB_INPUT_CH_LAYOUT_DOLBY:
223 return HB_AMIXDOWN_DOLBY;
225 // 4 channel discrete
226 case HB_INPUT_CH_LAYOUT_2F2R:
227 case HB_INPUT_CH_LAYOUT_3F1R:
228 // a52dec and libdca can't upmix to 6ch,
229 // so we must downmix these.
230 return HB_AMIXDOWN_DOLBYPLII;
232 // 5 or 6 channel discrete
233 case HB_INPUT_CH_LAYOUT_3F2R:
234 if ( ! ( layout & HB_INPUT_CH_LAYOUT_HAS_LFE ) )
236 // we don't do 5 channel discrete so mixdown to DPLII
237 // a52dec and libdca can't upmix to 6ch,
238 // so we must downmix this.
239 return HB_AMIXDOWN_DOLBYPLII;
246 return HB_AMIXDOWN_DOLBYPLII;
249 return HB_AMIXDOWN_6CH;
255 int hb_get_default_mixdown( uint32_t codec, int layout )
257 switch (layout & HB_INPUT_CH_LAYOUT_DISCRETE_NO_LFE_MASK)
259 // stereo input or something not handled below
261 case HB_INPUT_CH_LAYOUT_STEREO:
262 // mono gets mixed up to stereo & more than stereo gets mixed down
263 return HB_AMIXDOWN_STEREO;
266 case HB_INPUT_CH_LAYOUT_MONO:
267 // everything else passes through
268 return HB_AMIXDOWN_MONO;
270 // dolby (DPL1 aka Dolby Surround = 4.0 matrix-encoded) input
271 // the A52 flags don't allow for a way to distinguish between DPL1 and
272 // DPL2 on a DVD so we always assume a DPL1 source for A52_DOLBY.
273 case HB_INPUT_CH_LAYOUT_DOLBY:
274 return HB_AMIXDOWN_DOLBY;
276 // 4 channel discrete
277 case HB_INPUT_CH_LAYOUT_2F2R:
278 case HB_INPUT_CH_LAYOUT_3F1R:
279 // a52dec and libdca can't upmix to 6ch,
280 // so we must downmix these.
281 return HB_AMIXDOWN_DOLBYPLII;
283 // 5 or 6 channel discrete
284 case HB_INPUT_CH_LAYOUT_3F2R:
285 if ( ! ( layout & HB_INPUT_CH_LAYOUT_HAS_LFE ) )
287 // we don't do 5 channel discrete so mixdown to DPLII
288 // a52dec and libdca can't upmix to 6ch,
289 // so we must downmix this.
290 return HB_AMIXDOWN_DOLBYPLII;
297 return HB_AMIXDOWN_6CH;
300 return HB_AMIXDOWN_DOLBYPLII;
306 /**********************************************************************
308 **********************************************************************
309 * Given a numerator (num) and a denominator (den), reduce them to an
310 * equivalent fraction and store the result in x and y.
311 *********************************************************************/
312 void hb_reduce( int *x, int *y, int num, int den )
314 // find the greatest common divisor of num & den by Euclid's algorithm
315 int n = num, d = den;
323 // at this point n is the gcd. if it's non-zero remove it from num
324 // and den. Otherwise just return the original values.
337 /**********************************************************************
339 **********************************************************************
340 * Given the output width (if HB_KEEP_WIDTH) or height
341 * (HB_KEEP_HEIGHT) and the current crop values, calculates the
342 * correct height or width in order to respect the DVD aspect ratio
343 *********************************************************************/
344 void hb_fix_aspect( hb_job_t * job, int keep )
346 hb_title_t * title = job->title;
352 /* don't do anything unless the title has complete size info */
353 if ( title->height == 0 || title->width == 0 || title->aspect == 0 )
355 hb_log( "hb_fix_aspect: incomplete info for title %d: "
356 "height = %d, width = %d, aspect = %.3f",
357 title->index, title->height, title->width, title->aspect );
361 // min_width and min_height should be multiples of modulus
364 modulus = job->modulus ? job->modulus : 16;
366 for( i = 0; i < 4; i++ )
368 // Sanity check crop values are zero or positive multiples of 2
372 job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->height / 2 ) - ( min_height / 2 ) ) );
373 job->crop[i] = MAX( 0, job->crop[i] );
378 job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->width / 2 ) - ( min_width / 2 ) ) );
379 job->crop[i] = MAX( 0, job->crop[i] );
383 double par = (double)title->width / ( (double)title->height * title->aspect );
384 double cropped_sar = (double)( title->height - job->crop[0] - job->crop[1] ) /
385 (double)( title->width - job->crop[2] - job->crop[3] );
386 double ar = par * cropped_sar;
388 // Dimensions must be greater than minimum and multiple of modulus
389 if( keep == HB_KEEP_WIDTH )
391 job->width = MULTIPLE_MOD( job->width, modulus );
392 job->width = MAX( min_width, job->width );
393 job->height = MULTIPLE_MOD( (uint64_t)( (double)job->width * ar ), modulus );
394 job->height = MAX( min_height, job->height );
398 job->height = MULTIPLE_MOD( job->height, modulus );
399 job->height = MAX( min_height, job->height );
400 job->width = MULTIPLE_MOD( (uint64_t)( (double)job->height / ar ), modulus );
401 job->width = MAX( min_width, job->width );
405 /**********************************************************************
407 **********************************************************************
409 *********************************************************************/
410 int hb_calc_bitrate( hb_job_t * job, int size )
412 int64_t avail = (int64_t) size * 1024 * 1024;
415 int samples_per_frame;
418 hb_title_t * title = job->title;
419 hb_chapter_t * chapter;
422 /* How many overhead bytes are used for each frame
442 /* Get the duration in seconds */
444 for( i = job->chapter_start; i <= job->chapter_end; i++ )
446 chapter = hb_list_item( title->list_chapter, i - 1 );
447 length += chapter->duration;
454 hb_interjob_t * interjob = hb_interjob_get( job->h );
455 avail = job->vbitrate * 125 * length;
456 avail += length * interjob->vrate * overhead / interjob->vrate_base;
460 avail -= length * job->vrate * overhead / job->vrate_base;
467 for( i = 0; i < hb_list_count(job->list_audio); i++ )
471 audio = hb_list_item( job->list_audio, i);
473 /* How many audio samples we put in each frame */
474 switch( audio->config.out.codec )
477 case HB_ACODEC_CA_AAC:
478 case HB_ACODEC_VORBIS:
479 samples_per_frame = 1024;
482 samples_per_frame = 1152;
484 case HB_ACODEC_AC3_PASS:
485 case HB_ACODEC_DCA_PASS:
488 samples_per_frame = 1536;
494 if( audio->config.out.codec == HB_ACODEC_AC3_PASS ||
495 audio->config.out.codec == HB_ACODEC_DCA_PASS)
498 * For pass through we take the bitrate from the input audio
499 * bitrate as we are simply passing it through.
501 abitrate = audio->config.in.bitrate / 8;
506 * Where we are transcoding the audio we use the destination
509 abitrate = audio->config.out.bitrate * 1000 / 8;
511 avail -= length * abitrate;
514 avail -= length * audio->config.out.samplerate * overhead / samples_per_frame;
523 return ( avail / ( 125 * length ) );
526 /**********************************************************************
527 * hb_list implementation
528 **********************************************************************
529 * Basic and slow, but enough for what we need
530 *********************************************************************/
532 #define HB_LIST_DEFAULT_SIZE 20
536 /* Pointers to items in the list */
539 /* How many (void *) allocated in 'items' */
542 /* How many valid pointers in 'items' */
546 /**********************************************************************
548 **********************************************************************
549 * Allocates an empty list ready for HB_LIST_DEFAULT_SIZE items
550 *********************************************************************/
551 hb_list_t * hb_list_init()
555 l = calloc( sizeof( hb_list_t ), 1 );
556 l->items = calloc( HB_LIST_DEFAULT_SIZE * sizeof( void * ), 1 );
557 l->items_alloc = HB_LIST_DEFAULT_SIZE;
562 /**********************************************************************
564 **********************************************************************
565 * Returns the number of items currently in the list
566 *********************************************************************/
567 int hb_list_count( hb_list_t * l )
569 return l->items_count;
572 /**********************************************************************
574 **********************************************************************
575 * Adds an item at the end of the list, making it bigger if necessary.
576 * Can safely be called with a NULL pointer to add, it will be ignored.
577 *********************************************************************/
578 void hb_list_add( hb_list_t * l, void * p )
585 if( l->items_count == l->items_alloc )
587 /* We need a bigger boat */
588 l->items_alloc += HB_LIST_DEFAULT_SIZE;
589 l->items = realloc( l->items,
590 l->items_alloc * sizeof( void * ) );
593 l->items[l->items_count] = p;
597 /**********************************************************************
599 **********************************************************************
600 * Remove an item from the list. Bad things will happen if called
601 * with a NULL pointer or if the item is not in the list.
602 *********************************************************************/
603 void hb_list_rem( hb_list_t * l, void * p )
607 /* Find the item in the list */
608 for( i = 0; i < l->items_count; i++ )
610 if( l->items[i] == p )
616 /* Shift all items after it sizeof( void * ) bytes earlier */
617 memmove( &l->items[i], &l->items[i+1],
618 ( l->items_count - i - 1 ) * sizeof( void * ) );
623 /**********************************************************************
625 **********************************************************************
626 * Returns item at position i, or NULL if there are not that many
628 *********************************************************************/
629 void * hb_list_item( hb_list_t * l, int i )
631 if( i < 0 || i >= l->items_count )
639 /**********************************************************************
641 **********************************************************************
642 * Assuming all items are of type hb_buffer_t, returns the total
643 * number of bytes in the list
644 *********************************************************************/
645 int hb_list_bytes( hb_list_t * l )
652 for( i = 0; i < hb_list_count( l ); i++ )
654 buf = hb_list_item( l, i );
655 ret += buf->size - buf->cur;
661 /**********************************************************************
663 **********************************************************************
664 * Assuming all items are of type hb_buffer_t, copy <size> bytes from
665 * the list to <dst>, keeping the list unmodified.
666 *********************************************************************/
667 void hb_list_seebytes( hb_list_t * l, uint8_t * dst, int size )
674 for( i = 0, copied = 0; copied < size; i++ )
676 buf = hb_list_item( l, i );
677 copying = MIN( buf->size - buf->cur, size - copied );
678 memcpy( &dst[copied], &buf->data[buf->cur], copying );
683 /**********************************************************************
685 **********************************************************************
686 * Assuming all items are of type hb_buffer_t, copy <size> bytes from
687 * the list to <dst>. What's copied is removed from the list.
688 * The variable pointed by <pts> is set to the PTS of the buffer the
689 * first byte has been got from.
690 * The variable pointed by <pos> is set to the position of that byte
692 *********************************************************************/
693 void hb_list_getbytes( hb_list_t * l, uint8_t * dst, int size,
694 uint64_t * pts, uint64_t * pos )
701 /* So we won't have to deal with NULL pointers */
702 uint64_t dummy1, dummy2;
704 if( !pts ) pts = &dummy1;
705 if( !pos ) pos = &dummy2;
707 for( copied = 0, has_pts = 0; copied < size; )
709 buf = hb_list_item( l, 0 );
710 copying = MIN( buf->size - buf->cur, size - copied );
711 memcpy( &dst[copied], &buf->data[buf->cur], copying );
721 if( buf->cur >= buf->size )
723 hb_list_rem( l, buf );
724 hb_buffer_close( &buf );
731 /**********************************************************************
733 **********************************************************************
734 * Assuming all items are of type hb_buffer_t, close them all and
736 *********************************************************************/
737 void hb_list_empty( hb_list_t ** _l )
742 while( ( b = hb_list_item( l, 0 ) ) )
745 hb_buffer_close( &b );
751 /**********************************************************************
753 **********************************************************************
754 * Free memory allocated by hb_list_init. Does NOT free contents of
755 * items still in the list.
756 *********************************************************************/
757 void hb_list_close( hb_list_t ** _l )
767 /**********************************************************************
769 **********************************************************************
770 * If verbose mode is one, print message with timestamp. Messages
771 * longer than 180 characters are stripped ;p
772 *********************************************************************/
773 void hb_log( char * log, ... )
775 char string[362]; /* 360 chars + \n + \0 */
780 if( !getenv( "HB_DEBUG" ) )
782 /* We don't want to print it */
788 now = localtime( &_now );
789 sprintf( string, "[%02d:%02d:%02d] ",
790 now->tm_hour, now->tm_min, now->tm_sec );
792 /* Convert the message to a string */
793 va_start( args, log );
794 vsnprintf( string + 11, 349, log, args );
797 /* Add the end of line */
798 strcat( string, "\n" );
801 fprintf( stderr, "%s", string );
804 int global_verbosity_level; //Necessary for hb_deep_log
805 /**********************************************************************
807 **********************************************************************
808 * If verbose mode is >= level, print message with timestamp. Messages
809 * longer than 360 characters are stripped ;p
810 *********************************************************************/
811 void hb_deep_log( hb_debug_level_t level, char * log, ... )
813 char string[362]; /* 360 chars + \n + \0 */
818 if( global_verbosity_level < level )
826 now = localtime( &_now );
827 sprintf( string, "[%02d:%02d:%02d] ",
828 now->tm_hour, now->tm_min, now->tm_sec );
830 /* Convert the message to a string */
831 va_start( args, log );
832 vsnprintf( string + 11, 349, log, args );
835 /* Add the end of line */
836 strcat( string, "\n" );
839 fprintf( stderr, "%s", string );
842 /**********************************************************************
844 **********************************************************************
845 * Using whatever output is available display this error.
846 *********************************************************************/
847 void hb_error( char * log, ... )
849 char string[181]; /* 180 chars + \0 */
850 char rep_string[181];
851 static char last_string[181];
852 static int last_error_count = 0;
853 static uint64_t last_series_error_time = 0;
854 static hb_lock_t *mutex = 0;
858 /* Convert the message to a string */
859 va_start( args, log );
860 vsnprintf( string, 180, log, args );
865 mutex = hb_lock_init();
870 time_now = hb_get_date();
872 if( strcmp( string, last_string) == 0 )
875 * The last error and this one are the same, don't log it
876 * just count it instead, unless it was more than one second
880 if( last_series_error_time + ( 1000 * 1 ) > time_now )
888 * A new error, or the same one more than 10sec since the last one
889 * did we have any of the same counted up?
891 if( last_error_count > 0 )
894 * Print out the last error to ensure context for the last
899 error_handler( last_string );
901 hb_log( "%s", last_string );
904 if( last_error_count > 1 )
907 * Only print out the repeat message for more than 2 of the
908 * same, since we just printed out two of them already.
910 snprintf( rep_string, 180, "Last error repeated %d times",
911 last_error_count - 1 );
915 error_handler( rep_string );
917 hb_log( "%s", rep_string );
921 last_error_count = 0;
924 last_series_error_time = time_now;
926 strcpy( last_string, string );
929 * Got the error in a single string, send it off to be dispatched.
933 error_handler( string );
935 hb_log( "%s", string );
941 void hb_register_error_handler( hb_error_handler_t * handler )
943 error_handler = handler;
946 /**********************************************************************
948 **********************************************************************
950 *********************************************************************/
951 hb_title_t * hb_title_init( char * path, int index )
955 t = calloc( sizeof( hb_title_t ), 1 );
958 t->list_audio = hb_list_init();
959 t->list_chapter = hb_list_init();
960 t->list_subtitle = hb_list_init();
961 t->list_attachment = hb_list_init();
962 strcat( t->path, path );
963 // default to decoding mpeg2
965 t->video_codec = WORK_DECMPEG2;
970 /**********************************************************************
972 **********************************************************************
974 *********************************************************************/
975 void hb_title_close( hb_title_t ** _t )
977 hb_title_t * t = *_t;
979 hb_chapter_t * chapter;
980 hb_subtitle_t * subtitle;
981 hb_attachment_t * attachment;
983 while( ( audio = hb_list_item( t->list_audio, 0 ) ) )
985 hb_list_rem( t->list_audio, audio );
988 hb_list_close( &t->list_audio );
990 while( ( chapter = hb_list_item( t->list_chapter, 0 ) ) )
992 hb_list_rem( t->list_chapter, chapter );
995 hb_list_close( &t->list_chapter );
997 while( ( subtitle = hb_list_item( t->list_subtitle, 0 ) ) )
999 hb_list_rem( t->list_subtitle, subtitle );
1000 if ( subtitle->extradata )
1002 free( subtitle->extradata );
1003 subtitle->extradata = NULL;
1007 hb_list_close( &t->list_subtitle );
1009 while( ( attachment = hb_list_item( t->list_attachment, 0 ) ) )
1011 hb_list_rem( t->list_attachment, attachment );
1012 if ( attachment->name )
1014 free( attachment->name );
1015 attachment->name = NULL;
1017 if ( attachment->data )
1019 free( attachment->data );
1020 attachment->data = NULL;
1024 hb_list_close( &t->list_attachment );
1028 if( t->metadata->coverart )
1030 free( t->metadata->coverart );
1032 free( t->metadata );
1039 /**********************************************************************
1041 **********************************************************************
1043 *********************************************************************/
1044 void hb_filter_close( hb_filter_object_t ** _f )
1046 hb_filter_object_t * f = *_f;
1048 f->close( f->private_data );
1053 free( f->settings );
1059 /**********************************************************************
1061 **********************************************************************
1063 *********************************************************************/
1064 hb_audio_t *hb_audio_copy(const hb_audio_t *src)
1066 hb_audio_t *audio = NULL;
1070 audio = calloc(1, sizeof(*audio));
1071 memcpy(audio, src, sizeof(*audio));
1076 /**********************************************************************
1078 **********************************************************************
1080 *********************************************************************/
1081 void hb_audio_config_init(hb_audio_config_t * audiocfg)
1083 /* Set read only paramaters to invalid values */
1084 audiocfg->in.codec = 0xDEADBEEF;
1085 audiocfg->in.bitrate = -1;
1086 audiocfg->in.samplerate = -1;
1087 audiocfg->in.channel_layout = 0;
1088 audiocfg->in.version = 0;
1089 audiocfg->in.mode = 0;
1090 audiocfg->flags.ac3 = 0;
1091 audiocfg->lang.description[0] = 0;
1092 audiocfg->lang.simple[0] = 0;
1093 audiocfg->lang.iso639_2[0] = 0;
1095 /* Initalize some sensable defaults */
1096 audiocfg->in.track = audiocfg->out.track = 0;
1097 audiocfg->out.codec = HB_ACODEC_FAAC;
1098 audiocfg->out.bitrate = 128;
1099 audiocfg->out.samplerate = 44100;
1100 audiocfg->out.mixdown = HB_AMIXDOWN_DOLBYPLII;
1101 audiocfg->out.dynamic_range_compression = 0;
1102 audiocfg->out.name = NULL;
1105 /**********************************************************************
1107 **********************************************************************
1109 *********************************************************************/
1110 int hb_audio_add(const hb_job_t * job, const hb_audio_config_t * audiocfg)
1112 hb_title_t *title = job->title;
1115 audio = hb_audio_copy( hb_list_item( title->list_audio, audiocfg->in.track ) );
1122 if( (audiocfg->in.bitrate != -1) && (audiocfg->in.codec != 0xDEADBEEF) )
1124 /* This most likely means the client didn't call hb_audio_config_init
1130 /* Really shouldn't ignore the passed out track, but there is currently no
1131 * way to handle duplicates or out-of-order track numbers.
1133 audio->config.out.track = hb_list_count(job->list_audio) + 1;
1134 audio->config.out.codec = audiocfg->out.codec;
1135 if( (audiocfg->out.codec & HB_ACODEC_MASK) == audio->config.in.codec &&
1136 (audiocfg->out.codec & HB_ACODEC_PASS_FLAG ) )
1138 /* Pass-through, copy from input. */
1139 audio->config.out.samplerate = audio->config.in.samplerate;
1140 audio->config.out.bitrate = audio->config.in.bitrate;
1141 audio->config.out.dynamic_range_compression = 0;
1142 audio->config.out.mixdown = 0;
1146 /* Non pass-through, use what is given. */
1147 audio->config.out.codec &= ~HB_ACODEC_PASS_FLAG;
1148 audio->config.out.samplerate = audiocfg->out.samplerate;
1149 audio->config.out.bitrate = audiocfg->out.bitrate;
1150 audio->config.out.dynamic_range_compression = audiocfg->out.dynamic_range_compression;
1151 audio->config.out.mixdown = audiocfg->out.mixdown;
1154 hb_list_add(job->list_audio, audio);
1158 hb_audio_config_t * hb_list_audio_config_item(hb_list_t * list, int i)
1160 hb_audio_t *audio = NULL;
1162 if( (audio = hb_list_item(list, i)) )
1163 return &(audio->config);
1168 /**********************************************************************
1170 **********************************************************************
1172 *********************************************************************/
1173 hb_subtitle_t *hb_subtitle_copy(const hb_subtitle_t *src)
1175 hb_subtitle_t *subtitle = NULL;
1179 subtitle = calloc(1, sizeof(*subtitle));
1180 memcpy(subtitle, src, sizeof(*subtitle));
1181 if ( src->extradata )
1183 subtitle->extradata = malloc( src->extradata_size );
1184 memcpy( subtitle->extradata, src->extradata, src->extradata_size );
1190 /**********************************************************************
1192 **********************************************************************
1194 *********************************************************************/
1195 int hb_subtitle_add(const hb_job_t * job, const hb_subtitle_config_t * subtitlecfg, int track)
1197 hb_title_t *title = job->title;
1198 hb_subtitle_t *subtitle;
1200 subtitle = hb_subtitle_copy( hb_list_item( title->list_subtitle, track ) );
1201 if( subtitle == NULL )
1206 subtitle->config = *subtitlecfg;
1207 hb_list_add(job->list_subtitle, subtitle);
1211 int hb_srt_add( const hb_job_t * job,
1212 const hb_subtitle_config_t * subtitlecfg,
1215 hb_subtitle_t *subtitle;
1216 iso639_lang_t *language = NULL;
1219 subtitle = calloc( 1, sizeof( *subtitle ) );
1221 subtitle->id = (hb_list_count(job->list_subtitle) << 8) | 0xFF;
1222 subtitle->format = TEXTSUB;
1223 subtitle->source = SRTSUB;
1225 language = lang_for_code2( lang );
1230 strcpy( subtitle->lang, language->eng_name );
1231 strncpy( subtitle->iso639_2, lang, 4 );
1233 subtitle->config = *subtitlecfg;
1234 subtitle->config.dest = PASSTHRUSUB;
1236 hb_list_add(job->list_subtitle, subtitle);
1242 char * hb_strdup_printf( char * fmt, ... )
1250 str = malloc( size );
1256 /* Try to print in the allocated space. */
1257 va_start( ap, fmt );
1258 len = vsnprintf( str, size, fmt, ap );
1261 /* If that worked, return the string. */
1262 if ( len > -1 && len < size )
1267 /* Else try again with more space. */
1268 if ( len > -1 ) /* glibc 2.1 */
1269 size = len + 1; /* precisely what is needed */
1270 else /* glibc 2.0 */
1271 size *= 2; /* twice the old size */
1272 tmp = realloc( str, size );
1283 /**********************************************************************
1284 * hb_attachment_copy
1285 **********************************************************************
1287 *********************************************************************/
1288 hb_attachment_t *hb_attachment_copy(const hb_attachment_t *src)
1290 hb_attachment_t *attachment = NULL;
1294 attachment = calloc(1, sizeof(*attachment));
1295 memcpy(attachment, src, sizeof(*attachment));
1298 attachment->name = strdup( src->name );
1302 attachment->data = malloc( src->size );
1303 memcpy( attachment->data, src->data, src->size );
1309 /**********************************************************************
1311 **********************************************************************
1312 * Converts a YCbCr pixel to an RGB pixel.
1314 * This conversion is lossy (due to rounding and clamping).
1317 * http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
1318 *********************************************************************/
1319 int hb_yuv2rgb(int yuv)
1324 y = (yuv >> 16) & 0xff;
1325 Cb = (yuv >> 8) & 0xff;
1328 r = 1.164 * (y - 16) + 2.018 * (Cb - 128);
1329 g = 1.164 * (y - 16) - 0.813 * (Cr - 128) - 0.391 * (Cb - 128);
1330 b = 1.164 * (y - 16) + 1.596 * (Cr - 128);
1332 r = (r < 0) ? 0 : r;
1333 g = (g < 0) ? 0 : g;
1334 b = (b < 0) ? 0 : b;
1336 r = (r > 255) ? 255 : r;
1337 g = (g > 255) ? 255 : g;
1338 b = (b > 255) ? 255 : b;
1340 return (r << 16) | (g << 8) | b;
1343 /**********************************************************************
1345 **********************************************************************
1346 * Converts an RGB pixel to a YCbCr pixel.
1348 * This conversion is lossy (due to rounding and clamping).
1351 * http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
1352 *********************************************************************/
1353 int hb_rgb2yuv(int rgb)
1358 r = (rgb >> 16) & 0xff;
1359 g = (rgb >> 8) & 0xff;
1362 y = 16. + ( 0.257 * r) + (0.504 * g) + (0.098 * b);
1363 Cb = 128. + (-0.148 * r) - (0.291 * g) + (0.439 * b);
1364 Cr = 128. + ( 0.439 * r) - (0.368 * g) - (0.071 * b);
1366 y = (y < 0) ? 0 : y;
1367 Cb = (Cb < 0) ? 0 : Cb;
1368 Cr = (Cr < 0) ? 0 : Cr;
1370 y = (y > 255) ? 255 : y;
1371 Cb = (Cb > 255) ? 255 : Cb;
1372 Cr = (Cr > 255) ? 255 : Cr;
1374 return (y << 16) | (Cb << 8) | Cr;
1377 const char * hb_subsource_name( int source )