Commit 7e3ae721 authored by Justin Kim's avatar Justin Kim Committed by Jean-Baptiste Kempf

access_output: srt: add support stream encryption

For encrypted transmitting, `passphrase` and `key-length`
properties are added.
Signed-off-by: default avatarJustin Kim <justin.kim@collabora.com>
Signed-off-by: Jean-Baptiste Kempf's avatarJean-Baptiste Kempf <jb@videolan.org>
parent 060cf2b0
......@@ -47,6 +47,16 @@
/* The default latency is 125
* which uses srt library internally */
#define SRT_DEFAULT_LATENCY 125
/* Crypto key length in bytes. */
#define SRT_KEY_LENGTH_TEXT N_("Crypto key length in bytes")
#define SRT_DEFAULT_KEY_LENGTH 16
static const int srt_key_lengths[] = {
16, 24, 32,
};
static const char *const srt_key_length_names[] = {
N_("16 bytes"), N_("24 bytes"), N_("32 bytes"),
};
struct sout_access_out_sys_t
{
......@@ -159,6 +169,7 @@ static int Open( vlc_object_t *p_this )
char *psz_dst_addr = NULL;
int i_dst_port;
int stat;
char *psz_passphrase = NULL;
struct addrinfo hints = {
.ai_socktype = SOCK_DGRAM,
......@@ -183,6 +194,8 @@ static int Open( vlc_object_t *p_this )
p_access->p_sys = p_sys;
psz_passphrase = var_InheritString( p_access, "passphrase" );
i_dst_port = SRT_DEFAULT_PORT;
char *psz_parser = psz_dst_addr = strdup( p_access->psz_path );
if( !psz_dst_addr )
......@@ -234,6 +247,15 @@ static int Open( vlc_object_t *p_this )
/* Set latency */
srt_setsockopt( p_sys->sock, 0, SRTO_TSBPDDELAY, &p_sys->i_latency, sizeof( int ) );
if ( psz_passphrase != NULL && psz_passphrase[0] != '\0')
{
int i_key_length = var_InheritInteger( p_access, "key-length" );
srt_setsockopt( p_sys->sock, 0, SRTO_PASSPHRASE,
psz_passphrase, strlen( psz_passphrase ) );
srt_setsockopt( p_sys->sock, 0, SRTO_PBKEYLEN,
&i_key_length, sizeof( int ) );
}
p_sys->i_poll_id = srt_epoll_create();
if ( p_sys->i_poll_id == -1 )
{
......@@ -266,12 +288,15 @@ static int Open( vlc_object_t *p_this )
p_access->pf_write = Write;
p_access->pf_control = Control;
free( psz_passphrase );
free( psz_dst_addr );
freeaddrinfo( res );
return VLC_SUCCESS;
failed:
free( psz_passphrase );
if ( psz_dst_addr != NULL)
free( psz_dst_addr );
......@@ -318,6 +343,10 @@ vlc_module_begin()
add_integer( "poll-timeout", SRT_DEFAULT_POLL_TIMEOUT,
N_("Return poll wait after timeout milliseconds (-1 = infinite)"), NULL, true )
add_integer( "latency", SRT_DEFAULT_LATENCY, N_("SRT latency (ms)"), NULL, true )
add_password( "passphrase", "", N_("Password for stream encryption"), NULL, false )
add_integer( "key-length", SRT_DEFAULT_KEY_LENGTH,
SRT_KEY_LENGTH_TEXT, SRT_KEY_LENGTH_TEXT, false )
change_integer_list( srt_key_lengths, srt_key_length_names )
set_capability( "sout access", 0 )
add_shortcut( "srt" )
......
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