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gst/rtp/gstrtpamrdepay.c: Mark DISCONT on output buffers when the marker bit signals a new talk spurt.

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Original commit message from CVS:
* gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_class_init),
(gst_rtp_amr_depay_process):
Mark DISCONT on output buffers when the marker bit signals a new talk
spurt.
* gst/rtp/gstrtpamrpay.c: (gst_rtp_amr_pay_handle_buffer):
Set the marker bit for buffers with a DISCONT flag to signal a talk
spurt.
This commit is contained in:
Wim Taymans 2008-09-26 14:44:49 +00:00
parent c77bfaacb4
commit b17599a297
3 changed files with 39 additions and 11 deletions
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11
ChangeLog
View file

@ -1,3 +1,14 @@
2008-09-26 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/rtp/gstrtpamrdepay.c: (gst_rtp_amr_depay_class_init),
(gst_rtp_amr_depay_process):
Mark DISCONT on output buffers when the marker bit signals a new talk
spurt.
* gst/rtp/gstrtpamrpay.c: (gst_rtp_amr_pay_handle_buffer):
Set the marker bit for buffers with a DISCONT flag to signal a talk
spurt.
2008-09-26 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/rtp/Makefile.am:

17
gst/rtp/gstrtpamrdepay.c
View file

@ -27,6 +27,9 @@
#include <string.h>
#include "gstrtpamrdepay.h"
GST_DEBUG_CATEGORY_STATIC (rtpamrdepay_debug);
#define GST_CAT_DEFAULT (rtpamrdepay_debug)
/* references:
*
* RFC 3267 - Real-Time Transport Protocol (RTP) Payload Format and File
@ -146,6 +149,9 @@ gst_rtp_amr_depay_class_init (GstRtpAMRDepayClass * klass)
gstbasertpdepayload_class->process = gst_rtp_amr_depay_process;
gstbasertpdepayload_class->set_caps = gst_rtp_amr_depay_setcaps;
GST_DEBUG_CATEGORY_INIT (rtpamrdepay_debug, "rtpamrdepay", 0,
"AMR/AMR-WB RTP Depayloader");
}
static void
@ -304,7 +310,9 @@ gst_rtp_amr_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
gint i, num_packets, num_nonempty_packets;
gint amr_len;
gint ILL, ILP;
gboolean marker;
marker = gst_rtp_buffer_get_marker (buf);
payload_len = gst_rtp_buffer_get_payload_len (buf);
/* need at least 2 bytes for the header */
@ -412,10 +420,17 @@ gst_rtp_amr_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
/* we can set the duration because each packet is 20 milliseconds */
GST_BUFFER_DURATION (outbuf) = num_packets * 20 * GST_MSECOND;
if (marker) {
/* marker bit marks a discont buffer */
GST_DEBUG_OBJECT (depayload, "marker bit was set");
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
marker = FALSE;
}
gst_buffer_set_caps (outbuf,
GST_PAD_CAPS (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload)));
GST_DEBUG ("gst_rtp_amr_depay_chain: pushing buffer of size %d",
GST_DEBUG_OBJECT (depayload, "pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
}
return outbuf;

22
gst/rtp/gstrtpamrpay.c
View file

@ -211,6 +211,7 @@ gst_rtp_amr_pay_handle_buffer (GstBaseRTPPayload * basepayload,
gint i, num_packets, num_nonempty_packets;
gint amr_len;
gint *frame_size;
gboolean discont;
rtpamrpay = GST_RTP_AMR_PAY (basepayload);
mtu = GST_BASE_RTP_PAYLOAD_MTU (rtpamrpay);
@ -219,6 +220,7 @@ gst_rtp_amr_pay_handle_buffer (GstBaseRTPPayload * basepayload,
data = GST_BUFFER_DATA (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
discont = GST_BUFFER_IS_DISCONT (buffer);
/* setup frame size pointer */
if (rtpamrpay->mode == GST_RTP_AMR_P_MODE_NB)
@ -267,23 +269,23 @@ gst_rtp_amr_pay_handle_buffer (GstBaseRTPPayload * basepayload,
/* now alloc output buffer */
outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
/* copy timestamp, or fabricate one */
if (timestamp != GST_CLOCK_TIME_NONE)
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
else {
/* AMR (nb) and AMR-WB both have 20 ms per frame */
/* FIXME: when we do more than one AMR frame per packet, fix this */
gint count = basepayload->seqnum - basepayload->seqnum_base;
GST_BUFFER_TIMESTAMP (outbuf) = count * 20 * GST_MSECOND;
}
/* copy timestamp */
GST_BUFFER_TIMESTAMP (outbuf) = timestamp;
/* FIXME: when we do more than one AMR frame per packet, fix this */
if (duration != GST_CLOCK_TIME_NONE)
GST_BUFFER_DURATION (outbuf) = duration;
else {
GST_BUFFER_DURATION (outbuf) = 20 * GST_MSECOND;
}
if (discont) {
GST_DEBUG_OBJECT (basepayload, "discont, setting marker bit");
GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT);
gst_rtp_buffer_set_marker (outbuf, TRUE);
discont = FALSE;
}
/* get payload, this is now writable */
payload = gst_rtp_buffer_get_payload (outbuf);