/* $Id: common.c,v 1.15 2005/03/17 19:22:47 titer Exp $
This file is part of the HandBrake source code.
Homepage: .
It may be used under the terms of the GNU General Public License. */
#include
#include
#include
#include "common.h"
#include "lang.h"
#include "hb.h"
/**********************************************************************
* Global variables
*********************************************************************/
hb_rate_t hb_video_rates[] =
{ { "5", 5400000 }, { "10", 2700000 }, { "12", 2250000 },
{ "15", 1800000 }, { "23.976", 1126125 }, { "24", 1125000 },
{ "25", 1080000 }, { "29.97", 900900 } };
int hb_video_rates_count = sizeof( hb_video_rates ) /
sizeof( hb_rate_t );
hb_rate_t hb_audio_rates[] =
{ { "22.05", 22050 }, { "24", 24000 }, { "32", 32000 },
{ "44.1", 44100 }, { "48", 48000 } };
int hb_audio_rates_count = sizeof( hb_audio_rates ) /
sizeof( hb_rate_t );
int hb_audio_rates_default = 3; /* 44100 Hz */
hb_rate_t hb_audio_bitrates[] =
{ { "32", 32 }, { "40", 40 }, { "48", 48 }, { "56", 56 },
{ "64", 64 }, { "80", 80 }, { "96", 96 }, { "112", 112 },
{ "128", 128 }, { "160", 160 }, { "192", 192 }, { "224", 224 },
{ "256", 256 }, { "320", 320 }, { "384", 384 }, { "448", 448 },
{ "768", 768 } };
int hb_audio_bitrates_count = sizeof( hb_audio_bitrates ) /
sizeof( hb_rate_t );
int hb_audio_bitrates_default = 8; /* 128 kbps */
static hb_error_handler_t *error_handler = NULL;
hb_mixdown_t hb_audio_mixdowns[] =
{ { "Mono", "HB_AMIXDOWN_MONO", "mono", HB_AMIXDOWN_MONO },
{ "Stereo", "HB_AMIXDOWN_STEREO", "stereo", HB_AMIXDOWN_STEREO },
{ "Dolby Surround", "HB_AMIXDOWN_DOLBY", "dpl1", HB_AMIXDOWN_DOLBY },
{ "Dolby Pro Logic II", "HB_AMIXDOWN_DOLBYPLII", "dpl2", HB_AMIXDOWN_DOLBYPLII },
{ "6-channel discrete", "HB_AMIXDOWN_6CH", "6ch", HB_AMIXDOWN_6CH }
};
int hb_audio_mixdowns_count = sizeof( hb_audio_mixdowns ) /
sizeof( hb_mixdown_t );
int hb_mixdown_get_mixdown_from_short_name( const char * short_name )
{
int i;
for (i = 0; i < hb_audio_mixdowns_count; i++)
{
if (strcmp(hb_audio_mixdowns[i].short_name, short_name) == 0)
{
return hb_audio_mixdowns[i].amixdown;
}
}
return 0;
}
const char * hb_mixdown_get_short_name_from_mixdown( int amixdown )
{
int i;
for (i = 0; i < hb_audio_mixdowns_count; i++)
{
if (hb_audio_mixdowns[i].amixdown == amixdown)
{
return hb_audio_mixdowns[i].short_name;
}
}
return "";
}
/**********************************************************************
* hb_reduce
**********************************************************************
* Given a numerator (num) and a denominator (den), reduce them to an
* equivalent fraction and store the result in x and y.
*********************************************************************/
void hb_reduce( int *x, int *y, int num, int den )
{
// find the greatest common divisor of num & den by Euclid's algorithm
int n = num, d = den;
while ( d )
{
int t = d;
d = n % d;
n = t;
}
// at this point n is the gcd. if it's non-zero remove it from num
// and den. Otherwise just return the original values.
if ( n )
{
*x = num / n;
*y = den / n;
}
else
{
*x = num;
*y = den;
}
}
/**********************************************************************
* hb_fix_aspect
**********************************************************************
* Given the output width (if HB_KEEP_WIDTH) or height
* (HB_KEEP_HEIGHT) and the current crop values, calculates the
* correct height or width in order to respect the DVD aspect ratio
*********************************************************************/
void hb_fix_aspect( hb_job_t * job, int keep )
{
hb_title_t * title = job->title;
int i;
int min_width;
int min_height;
int modulus;
/* don't do anything unless the title has complete size info */
if ( title->height == 0 || title->width == 0 || title->aspect == 0 )
{
hb_log( "hb_fix_aspect: incomplete info for title %d: "
"height = %d, width = %d, aspect = %.3f",
title->index, title->height, title->width, title->aspect );
return;
}
// min_width and min_height should be multiples of modulus
min_width = 32;
min_height = 32;
modulus = job->modulus ? job->modulus : 16;
for( i = 0; i < 4; i++ )
{
// Sanity check crop values are zero or positive multiples of 2
if( i < 2 )
{
// Top, bottom
job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->height / 2 ) - ( min_height / 2 ) ) );
job->crop[i] = MAX( 0, job->crop[i] );
}
else
{
// Left, right
job->crop[i] = MIN( EVEN( job->crop[i] ), EVEN( ( title->width / 2 ) - ( min_width / 2 ) ) );
job->crop[i] = MAX( 0, job->crop[i] );
}
}
double par = (double)title->width / ( (double)title->height * title->aspect );
double cropped_sar = (double)( title->height - job->crop[0] - job->crop[1] ) /
(double)( title->width - job->crop[2] - job->crop[3] );
double ar = par * cropped_sar;
// Dimensions must be greater than minimum and multiple of modulus
if( keep == HB_KEEP_WIDTH )
{
job->width = MULTIPLE_MOD( job->width, modulus );
job->width = MAX( min_width, job->width );
job->height = MULTIPLE_MOD( (uint64_t)( (double)job->width * ar ), modulus );
job->height = MAX( min_height, job->height );
}
else
{
job->height = MULTIPLE_MOD( job->height, modulus );
job->height = MAX( min_height, job->height );
job->width = MULTIPLE_MOD( (uint64_t)( (double)job->height / ar ), modulus );
job->width = MAX( min_width, job->width );
}
}
/**********************************************************************
* hb_calc_bitrate
**********************************************************************
* size: in megabytes
*********************************************************************/
int hb_calc_bitrate( hb_job_t * job, int size )
{
int64_t avail = (int64_t) size * 1024 * 1024;
int64_t length;
int overhead;
int samples_per_frame;
int i;
hb_title_t * title = job->title;
hb_chapter_t * chapter;
hb_audio_t * audio;
/* How many overhead bytes are used for each frame
(quite guessed) */
switch( job->mux )
{
case HB_MUX_MP4:
case HB_MUX_PSP:
case HB_MUX_IPOD:
case HB_MUX_MKV:
overhead = 6;
break;
case HB_MUX_AVI:
overhead = 24;
break;
case HB_MUX_OGM:
overhead = 6;
break;
default:
return 0;
}
/* Get the duration in seconds */
length = 0;
for( i = job->chapter_start; i <= job->chapter_end; i++ )
{
chapter = hb_list_item( title->list_chapter, i - 1 );
length += chapter->duration;
}
length += 135000;
length /= 90000;
if( size == -1 )
{
hb_interjob_t * interjob = hb_interjob_get( job->h );
avail = job->vbitrate * 125 * length;
avail += length * interjob->vrate * overhead / interjob->vrate_base;
}
/* Video overhead */
avail -= length * job->vrate * overhead / job->vrate_base;
if( size == -1 )
{
goto ret;
}
for( i = 0; i < hb_list_count(job->list_audio); i++ )
{
/* Audio data */
int abitrate;
audio = hb_list_item( job->list_audio, i);
/* How many audio samples we put in each frame */
switch( audio->config.out.codec )
{
case HB_ACODEC_FAAC:
case HB_ACODEC_CA_AAC:
case HB_ACODEC_VORBIS:
samples_per_frame = 1024;
break;
case HB_ACODEC_LAME:
samples_per_frame = 1152;
break;
case HB_ACODEC_AC3:
case HB_ACODEC_DCA:
samples_per_frame = 1536;
break;
default:
return 0;
}
if( audio->config.out.codec == HB_ACODEC_AC3 ||
audio->config.out.codec == HB_ACODEC_DCA)
{
/*
* For pass through we take the bitrate from the input audio
* bitrate as we are simply passing it through.
*/
abitrate = audio->config.in.bitrate / 8;
}
else
{
/*
* Where we are transcoding the audio we use the destination
* bitrate.
*/
abitrate = audio->config.out.bitrate * 1000 / 8;
}
avail -= length * abitrate;
/* Audio overhead */
avail -= length * audio->config.out.samplerate * overhead / samples_per_frame;
}
ret:
if( avail < 0 )
{
return 0;
}
return ( avail / ( 125 * length ) );
}
/**********************************************************************
* hb_list implementation
**********************************************************************
* Basic and slow, but enough for what we need
*********************************************************************/
#define HB_LIST_DEFAULT_SIZE 20
struct hb_list_s
{
/* Pointers to items in the list */
void ** items;
/* How many (void *) allocated in 'items' */
int items_alloc;
/* How many valid pointers in 'items' */
int items_count;
};
/**********************************************************************
* hb_list_init
**********************************************************************
* Allocates an empty list ready for HB_LIST_DEFAULT_SIZE items
*********************************************************************/
hb_list_t * hb_list_init()
{
hb_list_t * l;
l = calloc( sizeof( hb_list_t ), 1 );
l->items = calloc( HB_LIST_DEFAULT_SIZE * sizeof( void * ), 1 );
l->items_alloc = HB_LIST_DEFAULT_SIZE;
return l;
}
/**********************************************************************
* hb_list_count
**********************************************************************
* Returns the number of items currently in the list
*********************************************************************/
int hb_list_count( hb_list_t * l )
{
return l->items_count;
}
/**********************************************************************
* hb_list_add
**********************************************************************
* Adds an item at the end of the list, making it bigger if necessary.
* Can safely be called with a NULL pointer to add, it will be ignored.
*********************************************************************/
void hb_list_add( hb_list_t * l, void * p )
{
if( !p )
{
return;
}
if( l->items_count == l->items_alloc )
{
/* We need a bigger boat */
l->items_alloc += HB_LIST_DEFAULT_SIZE;
l->items = realloc( l->items,
l->items_alloc * sizeof( void * ) );
}
l->items[l->items_count] = p;
(l->items_count)++;
}
/**********************************************************************
* hb_list_rem
**********************************************************************
* Remove an item from the list. Bad things will happen if called
* with a NULL pointer or if the item is not in the list.
*********************************************************************/
void hb_list_rem( hb_list_t * l, void * p )
{
int i;
/* Find the item in the list */
for( i = 0; i < l->items_count; i++ )
{
if( l->items[i] == p )
{
break;
}
}
/* Shift all items after it sizeof( void * ) bytes earlier */
memmove( &l->items[i], &l->items[i+1],
( l->items_count - i - 1 ) * sizeof( void * ) );
(l->items_count)--;
}
/**********************************************************************
* hb_list_item
**********************************************************************
* Returns item at position i, or NULL if there are not that many
* items in the list
*********************************************************************/
void * hb_list_item( hb_list_t * l, int i )
{
if( i < 0 || i >= l->items_count )
{
return NULL;
}
return l->items[i];
}
/**********************************************************************
* hb_list_bytes
**********************************************************************
* Assuming all items are of type hb_buffer_t, returns the total
* number of bytes in the list
*********************************************************************/
int hb_list_bytes( hb_list_t * l )
{
hb_buffer_t * buf;
int ret;
int i;
ret = 0;
for( i = 0; i < hb_list_count( l ); i++ )
{
buf = hb_list_item( l, i );
ret += buf->size - buf->cur;
}
return ret;
}
/**********************************************************************
* hb_list_seebytes
**********************************************************************
* Assuming all items are of type hb_buffer_t, copy bytes from
* the list to , keeping the list unmodified.
*********************************************************************/
void hb_list_seebytes( hb_list_t * l, uint8_t * dst, int size )
{
hb_buffer_t * buf;
int copied;
int copying;
int i;
for( i = 0, copied = 0; copied < size; i++ )
{
buf = hb_list_item( l, i );
copying = MIN( buf->size - buf->cur, size - copied );
memcpy( &dst[copied], &buf->data[buf->cur], copying );
copied += copying;
}
}
/**********************************************************************
* hb_list_getbytes
**********************************************************************
* Assuming all items are of type hb_buffer_t, copy bytes from
* the list to . What's copied is removed from the list.
* The variable pointed by is set to the PTS of the buffer the
* first byte has been got from.
* The variable pointed by is set to the position of that byte
* in that buffer.
*********************************************************************/
void hb_list_getbytes( hb_list_t * l, uint8_t * dst, int size,
uint64_t * pts, uint64_t * pos )
{
hb_buffer_t * buf;
int copied;
int copying;
uint8_t has_pts;
/* So we won't have to deal with NULL pointers */
uint64_t dummy1, dummy2;
if( !pts ) pts = &dummy1;
if( !pos ) pos = &dummy2;
for( copied = 0, has_pts = 0; copied < size; )
{
buf = hb_list_item( l, 0 );
copying = MIN( buf->size - buf->cur, size - copied );
memcpy( &dst[copied], &buf->data[buf->cur], copying );
if( !has_pts )
{
*pts = buf->start;
*pos = buf->cur;
has_pts = 1;
}
buf->cur += copying;
if( buf->cur >= buf->size )
{
hb_list_rem( l, buf );
hb_buffer_close( &buf );
}
copied += copying;
}
}
/**********************************************************************
* hb_list_empty
**********************************************************************
* Assuming all items are of type hb_buffer_t, close them all and
* close the list.
*********************************************************************/
void hb_list_empty( hb_list_t ** _l )
{
hb_list_t * l = *_l;
hb_buffer_t * b;
while( ( b = hb_list_item( l, 0 ) ) )
{
hb_list_rem( l, b );
hb_buffer_close( &b );
}
hb_list_close( _l );
}
/**********************************************************************
* hb_list_close
**********************************************************************
* Free memory allocated by hb_list_init. Does NOT free contents of
* items still in the list.
*********************************************************************/
void hb_list_close( hb_list_t ** _l )
{
hb_list_t * l = *_l;
free( l->items );
free( l );
*_l = NULL;
}
/**********************************************************************
* hb_log
**********************************************************************
* If verbose mode is one, print message with timestamp. Messages
* longer than 180 characters are stripped ;p
*********************************************************************/
void hb_log( char * log, ... )
{
char string[362]; /* 360 chars + \n + \0 */
time_t _now;
struct tm * now;
va_list args;
if( !getenv( "HB_DEBUG" ) )
{
/* We don't want to print it */
return;
}
/* Get the time */
_now = time( NULL );
now = localtime( &_now );
sprintf( string, "[%02d:%02d:%02d] ",
now->tm_hour, now->tm_min, now->tm_sec );
/* Convert the message to a string */
va_start( args, log );
vsnprintf( string + 11, 349, log, args );
va_end( args );
/* Add the end of line */
strcat( string, "\n" );
/* Print it */
fprintf( stderr, "%s", string );
}
int global_verbosity_level; //Necessary for hb_deep_log
/**********************************************************************
* hb_deep_log
**********************************************************************
* If verbose mode is >= level, print message with timestamp. Messages
* longer than 360 characters are stripped ;p
*********************************************************************/
void hb_deep_log( hb_debug_level_t level, char * log, ... )
{
char string[362]; /* 360 chars + \n + \0 */
time_t _now;
struct tm * now;
va_list args;
if( global_verbosity_level < level )
{
/* Hiding message */
return;
}
/* Get the time */
_now = time( NULL );
now = localtime( &_now );
sprintf( string, "[%02d:%02d:%02d] ",
now->tm_hour, now->tm_min, now->tm_sec );
/* Convert the message to a string */
va_start( args, log );
vsnprintf( string + 11, 349, log, args );
va_end( args );
/* Add the end of line */
strcat( string, "\n" );
/* Print it */
fprintf( stderr, "%s", string );
}
/**********************************************************************
* hb_error
**********************************************************************
* Using whatever output is available display this error.
*********************************************************************/
void hb_error( char * log, ... )
{
char string[181]; /* 180 chars + \0 */
char rep_string[181];
static char last_string[181];
static int last_error_count = 0;
static uint64_t last_series_error_time = 0;
static hb_lock_t *mutex = 0;
va_list args;
uint64_t time_now;
/* Convert the message to a string */
va_start( args, log );
vsnprintf( string, 180, log, args );
va_end( args );
if( !mutex )
{
mutex = hb_lock_init();
}
hb_lock( mutex );
time_now = hb_get_date();
if( strcmp( string, last_string) == 0 )
{
/*
* The last error and this one are the same, don't log it
* just count it instead, unless it was more than one second
* ago.
*/
last_error_count++;
if( last_series_error_time + ( 1000 * 1 ) > time_now )
{
hb_unlock( mutex );
return;
}
}
/*
* A new error, or the same one more than 10sec since the last one
* did we have any of the same counted up?
*/
if( last_error_count > 0 )
{
/*
* Print out the last error to ensure context for the last
* repeated message.
*/
if( error_handler )
{
error_handler( last_string );
} else {
hb_log( "%s", last_string );
}
if( last_error_count > 1 )
{
/*
* Only print out the repeat message for more than 2 of the
* same, since we just printed out two of them already.
*/
snprintf( rep_string, 180, "Last error repeated %d times",
last_error_count - 1 );
if( error_handler )
{
error_handler( rep_string );
} else {
hb_log( "%s", rep_string );
}
}
last_error_count = 0;
}
last_series_error_time = time_now;
strcpy( last_string, string );
/*
* Got the error in a single string, send it off to be dispatched.
*/
if( error_handler )
{
error_handler( string );
} else {
hb_log( "%s", string );
}
hb_unlock( mutex );
}
void hb_register_error_handler( hb_error_handler_t * handler )
{
error_handler = handler;
}
/**********************************************************************
* hb_title_init
**********************************************************************
*
*********************************************************************/
hb_title_t * hb_title_init( char * path, int index )
{
hb_title_t * t;
t = calloc( sizeof( hb_title_t ), 1 );
t->index = index;
t->list_audio = hb_list_init();
t->list_chapter = hb_list_init();
t->list_subtitle = hb_list_init();
t->list_attachment = hb_list_init();
strcat( t->path, path );
// default to decoding mpeg2
t->video_id = 0xE0;
t->video_codec = WORK_DECMPEG2;
return t;
}
/**********************************************************************
* hb_title_close
**********************************************************************
*
*********************************************************************/
void hb_title_close( hb_title_t ** _t )
{
hb_title_t * t = *_t;
hb_audio_t * audio;
hb_chapter_t * chapter;
hb_subtitle_t * subtitle;
hb_attachment_t * attachment;
while( ( audio = hb_list_item( t->list_audio, 0 ) ) )
{
hb_list_rem( t->list_audio, audio );
free( audio );
}
hb_list_close( &t->list_audio );
while( ( chapter = hb_list_item( t->list_chapter, 0 ) ) )
{
hb_list_rem( t->list_chapter, chapter );
free( chapter );
}
hb_list_close( &t->list_chapter );
while( ( subtitle = hb_list_item( t->list_subtitle, 0 ) ) )
{
hb_list_rem( t->list_subtitle, subtitle );
if ( subtitle->extradata )
{
free( subtitle->extradata );
subtitle->extradata = NULL;
}
free( subtitle );
}
hb_list_close( &t->list_subtitle );
while( ( attachment = hb_list_item( t->list_attachment, 0 ) ) )
{
hb_list_rem( t->list_attachment, attachment );
if ( attachment->name )
{
free( attachment->name );
attachment->name = NULL;
}
if ( attachment->data )
{
free( attachment->data );
attachment->data = NULL;
}
free( attachment );
}
hb_list_close( &t->list_attachment );
if( t->metadata )
{
if( t->metadata->coverart )
{
free( t->metadata->coverart );
}
free( t->metadata );
}
free( t );
*_t = NULL;
}
/**********************************************************************
* hb_filter_close
**********************************************************************
*
*********************************************************************/
void hb_filter_close( hb_filter_object_t ** _f )
{
hb_filter_object_t * f = *_f;
f->close( f->private_data );
if( f->name )
free( f->name );
if( f->settings )
free( f->settings );
free( f );
*_f = NULL;
}
/**********************************************************************
* hb_audio_copy
**********************************************************************
*
*********************************************************************/
hb_audio_t *hb_audio_copy(const hb_audio_t *src)
{
hb_audio_t *audio = NULL;
if( src )
{
audio = calloc(1, sizeof(*audio));
memcpy(audio, src, sizeof(*audio));
}
return audio;
}
/**********************************************************************
* hb_audio_new
**********************************************************************
*
*********************************************************************/
void hb_audio_config_init(hb_audio_config_t * audiocfg)
{
/* Set read only paramaters to invalid values */
audiocfg->in.codec = 0xDEADBEEF;
audiocfg->in.bitrate = -1;
audiocfg->in.samplerate = -1;
audiocfg->in.channel_layout = 0;
audiocfg->in.version = 0;
audiocfg->in.mode = 0;
audiocfg->flags.ac3 = 0;
audiocfg->lang.description[0] = 0;
audiocfg->lang.simple[0] = 0;
audiocfg->lang.iso639_2[0] = 0;
/* Initalize some sensable defaults */
audiocfg->in.track = audiocfg->out.track = 0;
audiocfg->out.codec = HB_ACODEC_FAAC;
audiocfg->out.bitrate = 128;
audiocfg->out.samplerate = 44100;
audiocfg->out.mixdown = HB_AMIXDOWN_DOLBYPLII;
audiocfg->out.dynamic_range_compression = 0;
audiocfg->out.name = NULL;
}
/**********************************************************************
* hb_audio_add
**********************************************************************
*
*********************************************************************/
int hb_audio_add(const hb_job_t * job, const hb_audio_config_t * audiocfg)
{
hb_title_t *title = job->title;
hb_audio_t *audio;
audio = hb_audio_copy( hb_list_item( title->list_audio, audiocfg->in.track ) );
if( audio == NULL )
{
/* We fail! */
return 0;
}
if( (audiocfg->in.bitrate != -1) && (audiocfg->in.codec != 0xDEADBEEF) )
{
/* This most likely means the client didn't call hb_audio_config_init
* so bail.
*/
return 0;
}
/* Really shouldn't ignore the passed out track, but there is currently no
* way to handle duplicates or out-of-order track numbers.
*/
audio->config.out.track = hb_list_count(job->list_audio) + 1;
audio->config.out.codec = audiocfg->out.codec;
if( audiocfg->out.codec == audio->config.in.codec )
{
/* Pass-through, copy from input. */
audio->config.out.samplerate = audio->config.in.samplerate;
audio->config.out.bitrate = audio->config.in.bitrate;
audio->config.out.dynamic_range_compression = 0;
audio->config.out.mixdown = 0;
}
else
{
/* Non pass-through, use what is given. */
audio->config.out.samplerate = audiocfg->out.samplerate;
audio->config.out.bitrate = audiocfg->out.bitrate;
audio->config.out.dynamic_range_compression = audiocfg->out.dynamic_range_compression;
audio->config.out.mixdown = audiocfg->out.mixdown;
}
hb_list_add(job->list_audio, audio);
return 1;
}
hb_audio_config_t * hb_list_audio_config_item(hb_list_t * list, int i)
{
hb_audio_t *audio = NULL;
if( (audio = hb_list_item(list, i)) )
return &(audio->config);
return NULL;
}
/**********************************************************************
* hb_subtitle_copy
**********************************************************************
*
*********************************************************************/
hb_subtitle_t *hb_subtitle_copy(const hb_subtitle_t *src)
{
hb_subtitle_t *subtitle = NULL;
if( src )
{
subtitle = calloc(1, sizeof(*subtitle));
memcpy(subtitle, src, sizeof(*subtitle));
if ( src->extradata )
{
subtitle->extradata = malloc( src->extradata_size );
memcpy( subtitle->extradata, src->extradata, src->extradata_size );
}
}
return subtitle;
}
/**********************************************************************
* hb_subtitle_add
**********************************************************************
*
*********************************************************************/
int hb_subtitle_add(const hb_job_t * job, const hb_subtitle_config_t * subtitlecfg, int track)
{
hb_title_t *title = job->title;
hb_subtitle_t *subtitle;
subtitle = hb_subtitle_copy( hb_list_item( title->list_subtitle, track ) );
if( subtitle == NULL )
{
/* We fail! */
return 0;
}
subtitle->config = *subtitlecfg;
hb_list_add(job->list_subtitle, subtitle);
return 1;
}
int hb_srt_add( const hb_job_t * job,
const hb_subtitle_config_t * subtitlecfg,
const char *lang )
{
hb_subtitle_t *subtitle;
iso639_lang_t *language = NULL;
int retval = 0;
subtitle = calloc( 1, sizeof( *subtitle ) );
subtitle->id = (hb_list_count(job->list_subtitle) << 8) | 0xFF;
subtitle->format = TEXTSUB;
subtitle->source = SRTSUB;
language = lang_for_code2( lang );
if( language )
{
strcpy( subtitle->lang, language->eng_name );
strncpy( subtitle->iso639_2, lang, 4 );
subtitle->config = *subtitlecfg;
subtitle->config.dest = PASSTHRUSUB;
hb_list_add(job->list_subtitle, subtitle);
retval = 1;
}
return retval;
}
char * hb_strdup_printf( char * fmt, ... )
{
int len;
va_list ap;
int size = 256;
char * str;
char * tmp;
str = malloc( size );
if ( str == NULL )
return NULL;
while (1)
{
/* Try to print in the allocated space. */
va_start( ap, fmt );
len = vsnprintf( str, size, fmt, ap );
va_end( ap );
/* If that worked, return the string. */
if ( len > -1 && len < size )
{
return str;
}
/* Else try again with more space. */
if ( len > -1 ) /* glibc 2.1 */
size = len + 1; /* precisely what is needed */
else /* glibc 2.0 */
size *= 2; /* twice the old size */
tmp = realloc( str, size );
if ( tmp == NULL )
{
free( str );
return NULL;
}
else
str = tmp;
}
}
/**********************************************************************
* hb_attachment_copy
**********************************************************************
*
*********************************************************************/
hb_attachment_t *hb_attachment_copy(const hb_attachment_t *src)
{
hb_attachment_t *attachment = NULL;
if( src )
{
attachment = calloc(1, sizeof(*attachment));
memcpy(attachment, src, sizeof(*attachment));
if ( src->name )
{
attachment->name = strdup( src->name );
}
if ( src->data )
{
attachment->data = malloc( src->size );
memcpy( attachment->data, src->data, src->size );
}
}
return attachment;
}
/**********************************************************************
* hb_yuv2rgb
**********************************************************************
* Converts a YCbCr pixel to an RGB pixel.
*
* This conversion is lossy (due to rounding and clamping).
*
* Algorithm:
* http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
*********************************************************************/
int hb_yuv2rgb(int yuv)
{
double y, Cr, Cb;
int r, g, b;
y = (yuv >> 16) & 0xff;
Cb = (yuv >> 8) & 0xff;
Cr = (yuv ) & 0xff;
r = 1.164 * (y - 16) + 2.018 * (Cb - 128);
g = 1.164 * (y - 16) - 0.813 * (Cr - 128) - 0.391 * (Cb - 128);
b = 1.164 * (y - 16) + 1.596 * (Cr - 128);
r = (r < 0) ? 0 : r;
g = (g < 0) ? 0 : g;
b = (b < 0) ? 0 : b;
r = (r > 255) ? 255 : r;
g = (g > 255) ? 255 : g;
b = (b > 255) ? 255 : b;
return (r << 16) | (g << 8) | b;
}
/**********************************************************************
* hb_rgb2yuv
**********************************************************************
* Converts an RGB pixel to a YCbCr pixel.
*
* This conversion is lossy (due to rounding and clamping).
*
* Algorithm:
* http://en.wikipedia.org/w/index.php?title=YCbCr&oldid=361987695#Technical_details
*********************************************************************/
int hb_rgb2yuv(int rgb)
{
double r, g, b;
int y, Cr, Cb;
r = (rgb >> 16) & 0xff;
g = (rgb >> 8) & 0xff;
b = (rgb ) & 0xff;
y = 16. + ( 0.257 * r) + (0.504 * g) + (0.098 * b);
Cb = 128. + (-0.148 * r) - (0.291 * g) + (0.439 * b);
Cr = 128. + ( 0.439 * r) - (0.368 * g) - (0.071 * b);
y = (y < 0) ? 0 : y;
Cb = (Cb < 0) ? 0 : Cb;
Cr = (Cr < 0) ? 0 : Cr;
y = (y > 255) ? 255 : y;
Cb = (Cb > 255) ? 255 : Cb;
Cr = (Cr > 255) ? 255 : Cr;
return (y << 16) | (Cb << 8) | Cr;
}
const char * hb_subsource_name( int source )
{
switch (source)
{
case VOBSUB:
return "VOBSUB";
case SRTSUB:
return "SRT";
case CC608SUB:
return "CC";
case CC708SUB:
return "CC";
case UTF8SUB:
return "UTF-8";
case TX3GSUB:
return "TX3G";
case SSASUB:
return "SSA";
default:
return "Unknown";
}
}