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gst-libs/gst/rtp/gstbasertpdepayload.c: Don't assert when not negotiated but post a meaningfull error message. Fixes ...

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Original commit message from CVS:
* gst-libs/gst/rtp/gstbasertpdepayload.c:
(gst_base_rtp_depayload_chain),
(gst_base_rtp_depayload_change_state):
Don't assert when not negotiated but post a meaningfull
error message. Fixes #347918.
* gst-libs/gst/rtp/gstbasertppayload.c:
Add comment about better default MTU size.
* gst-libs/gst/rtp/gstrtpbuffer.c: (gst_rtp_buffer_validate_data):
Small cleanups, start docs.
This commit is contained in:
Wim Taymans 2006-07-19 18:20:43 +00:00
parent 5a274b64d1
commit 01402bc9e3
4 changed files with 69 additions and 12 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2006-07-19 Wim Taymans <wim@fluendo.com>
* gst-libs/gst/rtp/gstbasertpdepayload.c:
(gst_base_rtp_depayload_chain),
(gst_base_rtp_depayload_change_state):
Don't assert when not negotiated but post a meaningfull
error message. Fixes #347918.
* gst-libs/gst/rtp/gstbasertppayload.c:
Add comment about better default MTU size.
* gst-libs/gst/rtp/gstrtpbuffer.c: (gst_rtp_buffer_validate_data):
Small cleanups, start docs.
2006-07-19 Tim-Philipp Müller <tim at centricular dot net>
Patch by: Martin Szulecki

11
gst-libs/gst/rtp/gstbasertpdepayload.c
View file

@ -205,7 +205,8 @@ gst_base_rtp_depayload_chain (GstPad * pad, GstBuffer * in)
filter = GST_BASE_RTP_DEPAYLOAD (GST_OBJECT_PARENT (pad));
g_return_val_if_fail (filter->clock_rate > 0, GST_FLOW_ERROR);
if (filter->clock_rate <= 0)
goto not_configured;
bclass = GST_BASE_RTP_DEPAYLOAD_GET_CLASS (filter);
@ -217,6 +218,14 @@ gst_base_rtp_depayload_chain (GstPad * pad, GstBuffer * in)
ret = bclass->add_to_queue (filter, in);
}
return ret;
/* ERRORS */
not_configured:
{
GST_ELEMENT_ERROR (filter, STREAM, FORMAT,
(NULL), ("no clock rate was specified, likely incomplete input caps"));
return GST_FLOW_NOT_NEGOTIATED;
}
}
static gboolean

6
gst-libs/gst/rtp/gstbasertppayload.c
View file

@ -32,6 +32,12 @@ enum
LAST_SIGNAL
};
/* FIXME 0.11, a better default is the Ethernet MTU of
* 1500 - sizeof(headers) as pointed out by marcelm in IRC:
* So an Ethernet MTU of 1500, minus 60 for the max IP, minus 8 for UDP, gives
* 1432 bytes or so. And that should be adjusted downward further for other
* encapsulations like PPPoE, so 1400 at most.
*/
#define DEFAULT_MTU 1024
#define DEFAULT_PT 96
#define DEFAULT_SSRC -1

50
gst-libs/gst/rtp/gstrtpbuffer.c
View file

@ -1,5 +1,6 @@
/* GStreamer
* Copyright (C) <2005> Philippe Khalaf <burger@speedy.org>
* Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
@ -17,6 +18,22 @@
* Boston, MA 02111-1307, USA.
*/
/**
* SECTION:gstrtpbuffer
* @short_description: Helper methods for dealing with RTP buffers
* @see_also: gstbasertppayload, gstbasertpdepayload
*
* <refsect2>
* <para>
* The GstRTPBuffer helper functions makes it easy to parse and create regular
* #GstBuffer objects that contain RTP payloads. These buffers are typically of
* 'application/x-rtp' #GstCaps.
* </para>
* </refsect2>
*
* Last reviewed on 2006-07-17 (0.10.10)
*/
#include "gstrtpbuffer.h"
#define GST_RTP_HEADER_LEN 12
@ -176,17 +193,13 @@ gst_rtp_buffer_validate_data (guint8 * data, guint len)
g_return_val_if_fail (data != NULL, FALSE);
header_len = GST_RTP_HEADER_LEN;
if (len < header_len) {
GST_DEBUG ("len < header_len check failed (%d < %d)", len, header_len);
return FALSE;
}
if (G_UNLIKELY (len < header_len))
goto wrong_length;
/* check version */
version = (data[0] & 0xc0) >> 6;
if (version != GST_RTP_VERSION) {
GST_DEBUG ("version check failed (%d != %d)", version, GST_RTP_VERSION);
return FALSE;
}
if (G_UNLIKELY (version != GST_RTP_VERSION))
goto wrong_version;
/* calc header length with csrc */
csrc_count = (data[0] & 0x0f);
@ -199,13 +212,28 @@ gst_rtp_buffer_validate_data (guint8 * data, guint len)
padding = 0;
/* check if padding not bigger than packet and header */
if (len - header_len <= padding) {
if (G_UNLIKELY (len - header_len <= padding))
goto wrong_padding;
return TRUE;
/* ERRORS */
wrong_length:
{
GST_DEBUG ("len < header_len check failed (%d < %d)", len, header_len);
return FALSE;
}
wrong_version:
{
GST_DEBUG ("version check failed (%d != %d)", version, GST_RTP_VERSION);
return FALSE;
}
wrong_padding:
{
GST_DEBUG ("padding check failed (%d - %d <= %d)",
len, header_len, padding);
return FALSE;
}
return TRUE;
}
gboolean