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srtpenc: Add config for the replay window size

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This commit is contained in:
Olivier Crête 2014-05-02 17:27:56 -04:00
parent b51344651e
commit 5d3ce2c611
2 changed files with 20 additions and 1 deletions
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19
ext/srtp/gstsrtpenc.c
View file

@ -124,6 +124,7 @@ GST_DEBUG_CATEGORY_STATIC (gst_srtp_enc_debug);
#define DEFAULT_RTCP_CIPHER DEFAULT_RTP_CIPHER
#define DEFAULT_RTCP_AUTH DEFAULT_RTP_AUTH
#define DEFAULT_RANDOM_KEY FALSE
#define DEFAULT_REPLAY_WINDOW_SIZE 128
#define HAS_CRYPTO(filter) (filter->rtp_cipher != GST_SRTP_CIPHER_NULL || \
filter->rtcp_cipher != GST_SRTP_CIPHER_NULL || \
@ -145,7 +146,8 @@ enum
PROP_RTP_AUTH,
PROP_RTCP_CIPHER,
PROP_RTCP_AUTH,
PROP_RANDOM_KEY
PROP_RANDOM_KEY,
PROP_REPLAY_WINDOW_SIZE
};
/* the capabilities of the inputs and outputs.
@ -282,6 +284,11 @@ gst_srtp_enc_class_init (GstSrtpEncClass * klass)
g_param_spec_boolean ("random-key", "Generate random key",
"Generate a random key if TRUE",
DEFAULT_RANDOM_KEY, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_REPLAY_WINDOW_SIZE,
g_param_spec_uint ("replay-window-size", "Replay window size",
"Size of the replay protection window",
64, 0x8000, DEFAULT_REPLAY_WINDOW_SIZE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* GstSrtpEnc::soft-limit:
@ -309,6 +316,7 @@ gst_srtp_enc_init (GstSrtpEnc * filter)
filter->rtp_auth = DEFAULT_RTP_AUTH;
filter->rtcp_cipher = DEFAULT_RTCP_CIPHER;
filter->rtcp_auth = DEFAULT_RTCP_AUTH;
filter->replay_window_size = DEFAULT_REPLAY_WINDOW_SIZE;
}
static guint
@ -379,6 +387,8 @@ gst_srtp_enc_create_session (GstSrtpEnc * filter)
policy.ssrc.type = ssrc_any_outbound;
policy.next = NULL;
policy.window_size = filter->replay_window_size;
/* If it is the first stream, create the session
* If not, add the stream to the session
*/
@ -590,6 +600,10 @@ gst_srtp_enc_set_property (GObject * object, guint prop_id,
filter->random_key = g_value_get_boolean (value);
break;
case PROP_REPLAY_WINDOW_SIZE:
filter->replay_window_size = g_value_get_uint (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -625,6 +639,9 @@ gst_srtp_enc_get_property (GObject * object, guint prop_id,
case PROP_RANDOM_KEY:
g_value_set_boolean (value, filter->random_key);
break;
case PROP_REPLAY_WINDOW_SIZE:
g_value_set_uint (value, filter->replay_window_size);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;

2
ext/srtp/gstsrtpenc.h
View file

@ -81,6 +81,8 @@ struct _GstSrtpEnc
srtp_t session;
gboolean first_session;
gboolean key_changed;
guint replay_window_size;
};
struct _GstSrtpEncClass