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rtpbasepayload: error out if no CAPS event was received before buffers

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Most payloaders set/send their own output format from the setcaps
function, so if we don't get input caps, things probably wont' work
right, even if the input format is fixed (as in the case of the mpeg-ts
payloader for example).

https://bugzilla.gnome.org/show_bug.cgi?id=683428
This commit is contained in:
Tim-Philipp Müller 2012-09-06 18:16:54 +01:00
parent 3d006f6d2a
commit 21c61586ad
1 changed files with 18 additions and 2 deletions
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20
gst-libs/gst/rtp/gstrtpbasepayload.c
View file

@ -49,6 +49,8 @@ struct _GstRTPBasePayloadPrivate
gint64 prop_max_ptime;
gint64 caps_max_ptime;
gboolean negotiated;
};
/* RTPBasePayload signals and args */
@ -361,6 +363,8 @@ gst_rtp_base_payload_sink_event_default (GstRTPBasePayload * rtpbasepayload,
else
res = TRUE;
rtpbasepayload->priv->negotiated = res;
gst_event_unref (event);
break;
}
@ -467,6 +471,9 @@ gst_rtp_base_payload_chain (GstPad * pad, GstObject * parent,
if (!rtpbasepayload_class->handle_buffer)
goto no_function;
if (!rtpbasepayload->priv->negotiated)
goto not_negotiated;
ret = rtpbasepayload_class->handle_buffer (rtpbasepayload, buffer);
return ret;
@ -479,6 +486,14 @@ no_function:
gst_buffer_unref (buffer);
return GST_FLOW_ERROR;
}
not_negotiated:
{
GST_ELEMENT_ERROR (rtpbasepayload, CORE, NEGOTIATION, (NULL),
("No input format was negotiated, i.e. no caps event was received. "
"Perhaps you need a parser or typefind element before the payloader"));
gst_buffer_unref (buffer);
return GST_FLOW_NOT_NEGOTIATED;
}
}
/**
@ -858,8 +873,8 @@ gst_rtp_base_payload_prepare_push (GstRTPBasePayload * payload,
(is_list) ? -1 : gst_buffer_get_size (GST_BUFFER (obj)),
payload->seqnum, data.rtptime, GST_TIME_ARGS (data.pts));
if (g_atomic_int_compare_and_exchange (&payload->
priv->notified_first_timestamp, 1, 0)) {
if (g_atomic_int_compare_and_exchange (&payload->priv->
notified_first_timestamp, 1, 0)) {
g_object_notify (G_OBJECT (payload), "timestamp");
g_object_notify (G_OBJECT (payload), "seqnum");
}
@ -1079,6 +1094,7 @@ gst_rtp_base_payload_change_state (GstElement * element,
rtpbasepayload->timestamp = rtpbasepayload->ts_base;
g_atomic_int_set (&rtpbasepayload->priv->notified_first_timestamp, 1);
priv->base_offset = GST_BUFFER_OFFSET_NONE;
priv->negotiated = FALSE;
break;
default:
break;