vlc/modules/demux/subtitle_helper.h

46 lines
1.9 KiB
C

/*****************************************************************************
* subtitle.h: subtitle helper functions
*****************************************************************************
* Copyright (C) 2015 VLC authors and VideoLAN
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
inline static char * peek_Readline( stream_t *p_demuxstream, uint64_t *pi_offset )
{
uint8_t *p_peek;
ssize_t i_peek = vlc_stream_Peek( p_demuxstream, (const uint8_t **) &p_peek,
*pi_offset + 2048 );
if( i_peek < 0 || (uint64_t) i_peek < *pi_offset )
return NULL;
const uint64_t i_bufsize = (uint64_t) i_peek - *pi_offset;
char *psz_line = NULL;
/* Create a stream memory from that offset */
stream_t *p_memorystream = vlc_stream_MemoryNew( p_demuxstream,
&p_peek[*pi_offset],
i_bufsize, true );
if( p_memorystream )
{
psz_line = vlc_stream_ReadLine( p_memorystream );
*pi_offset += vlc_stream_Tell( p_memorystream );
vlc_stream_Delete( p_memorystream );
}
return psz_line;
}