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/*
This file is part of the HandBrake source code.
Homepage: <http://handbrake.fr/>.
It may be used under the terms of the GNU General Public License. */
/*
* Decoder for UTF-8 subtitles obtained from file input-sources.
*
* Input and output packet format is UTF-8 encoded text,
* with limited HTML-style markup (only <b>, <i>, and <u>).
*
* @author David Foster (davidfstr)
*/
#include <stdlib.h>
#include <stdio.h>
#include "hb.h"
static int decutf8Init( hb_work_object_t * w, hb_job_t * job )
{
return 0;
}
static int decutf8Work( hb_work_object_t * w, hb_buffer_t ** buf_in,
hb_buffer_t ** buf_out )
{
hb_buffer_t * in = *buf_in;
hb_buffer_t * out = NULL;
// Pass the packets through without modification
out = in;
// Warn if the subtitle's duration has not been passed through by the demuxer,
// which will prevent the subtitle from displaying at all
if ( out->stop == 0 ) {
hb_log( "decutf8sub: subtitle packet lacks duration" );
}
// We shouldn't be storing the extra NULL character,
// but the MP4 muxer expects this, unfortunately.
if ( out->size > 0 && out->data[out->size - 1] != '\0' ) {
// NOTE: out->size remains unchanged
hb_buffer_realloc( out, out->size + 1 );
out->data[out->size] = '\0';
}
*buf_in = NULL;
*buf_out = out;
return HB_WORK_OK;
}
static void decutf8Close( hb_work_object_t * w )
{
// nothing
}
hb_work_object_t hb_decutf8sub =
{
WORK_DECUTF8SUB,
"UTF-8 Subtitle Decoder",
decutf8Init,
decutf8Work,
decutf8Close
};
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