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rtpgstpay: pre-allocate buffer list of the right size

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To avoid re-allocs.
This commit is contained in:
Tim-Philipp Müller 2014-06-18 08:10:03 +01:00
parent 01ee993d8d
commit 6c9e2194d2
1 changed files with 6 additions and 3 deletions
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9
gst/rtp/gstrtpgstpay.c
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@ -257,12 +257,13 @@ gst_rtp_gst_pay_change_state (GstElement * element, GstStateChange transition)
return ret; return ret;
} }
#define RTP_HEADER_LEN 12
static gboolean static gboolean
gst_rtp_gst_pay_create_from_adapter (GstRtpGSTPay * rtpgstpay, gst_rtp_gst_pay_create_from_adapter (GstRtpGSTPay * rtpgstpay,
GstClockTime timestamp) GstClockTime timestamp)
{ {
guint avail; guint avail, mtu;
guint frag_offset; guint frag_offset;
GstBufferList *list; GstBufferList *list;
@ -270,7 +271,9 @@ gst_rtp_gst_pay_create_from_adapter (GstRtpGSTPay * rtpgstpay,
if (avail == 0) if (avail == 0)
return FALSE; return FALSE;
list = gst_buffer_list_new (); mtu = GST_RTP_BASE_PAYLOAD_MTU (rtpgstpay);
list = gst_buffer_list_new_sized ((avail / (mtu - (RTP_HEADER_LEN + 8))) + 1);
frag_offset = 0; frag_offset = 0;
while (avail) { while (avail) {
@ -287,7 +290,7 @@ gst_rtp_gst_pay_create_from_adapter (GstRtpGSTPay * rtpgstpay,
packet_len = gst_rtp_buffer_calc_packet_len (8 + avail, 0, 0); packet_len = gst_rtp_buffer_calc_packet_len (8 + avail, 0, 0);
/* fill one MTU or all available bytes */ /* fill one MTU or all available bytes */
towrite = MIN (packet_len, GST_RTP_BASE_PAYLOAD_MTU (rtpgstpay)); towrite = MIN (packet_len, mtu);
/* this is the payload length */ /* this is the payload length */
payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0); payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0);