Commit 0af8501b authored by Rémi Denis-Courmont's avatar Rémi Denis-Courmont

stream_out_rtp: Linux splice() support

parent af9789b6
......@@ -444,6 +444,10 @@ AC_CHECK_FUNCS(strcasecmp,,[AC_CHECK_FUNCS(stricmp)])
AC_CHECK_FUNCS(strncasecmp,,[AC_CHECK_FUNCS(strnicmp)])
AC_CHECK_FUNCS(strcasestr,,[AC_CHECK_FUNCS(stristr)])
AS_IF([test "${SYS}" = "linux"], [
AC_CHECK_FUNCS(tee)
])
dnl Check for setlocal and langinfo
AC_CHECK_FUNCS(setlocale)
AC_CHECK_HEADERS(langinfo.h)
......
......@@ -39,7 +39,10 @@
#include "rtp.h"
#ifdef HAVE_UNISTD_H
# include <sys/types.h>
# include <unistd.h>
# include <fcntl.h>
# include <sys/stat.h>
#endif
#include <errno.h>
......@@ -1304,24 +1307,60 @@ static void ThreadSend( vlc_object_t *p_this )
{
sout_stream_id_t *id = (sout_stream_id_t *)p_this;
unsigned i_caching = id->i_caching;
#ifdef HAVE_TEE
int fd[5] = { -1, -1, -1, -1, -1 };
if( pipe( fd ) )
fd[0] = fd[1] = -1;
else
if( pipe( fd ) )
fd[2] = fd[3] = -1;
else
fd[4] = open( "/dev/null", O_WRONLY );
#endif
while( !id->b_die )
{
block_t *out = block_FifoGet( id->p_fifo );
mtime_t i_date = out->i_dts + i_caching;
ssize_t len = out->i_buffer;
#ifdef HAVE_TEE
if( fd[4] != -1 )
len = write( fd[1], out->p_buffer, len);
if( len == -1 )
continue; /* Uho - should not happen */
#endif
mwait( i_date );
vlc_mutex_lock( &id->lock_sink );
for( int i = 0; i < id->sinkc; i++ )
{
send( id->sinkv[i].rtp_fd, out->p_buffer, out->i_buffer, 0 );
SendRTCP( id->sinkv[i].rtcp, out );
#ifdef HAVE_TEE
tee( fd[0], fd[3], len, 0 );
if( splice( fd[2], NULL, id->sinkv[i].rtp_fd, NULL, len,
SPLICE_F_NONBLOCK ) >= 0 )
continue;
/* splice failed */
splice( fd[2], NULL, fd[4], NULL, len, 0 );
#endif
send( id->sinkv[i].rtp_fd, out->p_buffer, len, 0 );
}
vlc_mutex_unlock( &id->lock_sink );
block_Release( out );
#ifdef HAVE_TEE
splice( fd[0], NULL, fd[4], NULL, len, 0 );
#endif
}
#ifdef HAVE_TEE
for( unsigned i = 0; i < 5; i++ )
close( fd[i] );
#endif
}
static inline void rtp_packetize_send( sout_stream_id_t *id, block_t *out )
......
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