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rtpbasepayload: pass optional caps fields in a GstStructure

Browse source 
For more flexibility, allow to pass the extra output caps fields as
a GstStructure.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/952>
This commit is contained in:
Jakub Adam 2020-11-30 21:38:08 +01:00 committed by GStreamer Merge Bot
parent cc8f54468e
commit 6434db5298
2 changed files with 58 additions and 15 deletions
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69
gst-libs/gst/rtp/gstrtpbasepayload.c
View file

@ -891,6 +891,51 @@ update_max_ptime (GstRTPBasePayload * rtpbasepayload)
rtpbasepayload->max_ptime = DEFAULT_MAX_PTIME;
}
static gboolean
_set_caps (GQuark field_id, const GValue * value, GstCaps * caps)
{
gst_caps_set_value (caps, g_quark_to_string (field_id), value);
return TRUE;
}
/**
* gst_rtp_base_payload_set_outcaps_structure:
* @payload: a #GstRTPBasePayload
* @s: (nullable): a #GstStructure with the caps fields
*
* Configure the output caps with the optional fields.
*
* Returns: %TRUE if the caps could be set.
*
* Since: 1.20
*/
gboolean
gst_rtp_base_payload_set_outcaps_structure (GstRTPBasePayload * payload,
GstStructure * s)
{
GstCaps *srccaps;
/* fill in the defaults, their properties cannot be negotiated. */
srccaps = gst_caps_new_simple ("application/x-rtp",
"media", G_TYPE_STRING, payload->media,
"clock-rate", G_TYPE_INT, payload->clock_rate,
"encoding-name", G_TYPE_STRING, payload->encoding_name, NULL);
GST_DEBUG_OBJECT (payload, "defaults: %" GST_PTR_FORMAT, srccaps);
if (s && gst_structure_n_fields (s) > 0) {
gst_structure_foreach (s, (GstStructureForeachFunc) _set_caps, srccaps);
GST_DEBUG_OBJECT (payload, "custom added: %" GST_PTR_FORMAT, srccaps);
}
gst_caps_replace (&payload->priv->subclass_srccaps, srccaps);
gst_caps_unref (srccaps);
return gst_rtp_base_payload_negotiate (payload);
}
/**
* gst_rtp_base_payload_set_outcaps:
* @payload: a #GstRTPBasePayload
@ -908,31 +953,25 @@ gboolean
gst_rtp_base_payload_set_outcaps (GstRTPBasePayload * payload,
const gchar * fieldname, ...)
{
GstCaps *srccaps;
/* fill in the defaults, their properties cannot be negotiated. */
srccaps = gst_caps_new_simple ("application/x-rtp",
"media", G_TYPE_STRING, payload->media,
"clock-rate", G_TYPE_INT, payload->clock_rate,
"encoding-name", G_TYPE_STRING, payload->encoding_name, NULL);
GST_DEBUG_OBJECT (payload, "defaults: %" GST_PTR_FORMAT, srccaps);
gboolean result;
GstStructure *s = NULL;
if (fieldname) {
va_list varargs;
s = gst_structure_new_empty ("unused");
/* override with custom properties */
va_start (varargs, fieldname);
gst_caps_set_simple_valist (srccaps, fieldname, varargs);
gst_structure_set_valist (s, fieldname, varargs);
va_end (varargs);
GST_DEBUG_OBJECT (payload, "custom added: %" GST_PTR_FORMAT, srccaps);
}
gst_caps_replace (&payload->priv->subclass_srccaps, srccaps);
gst_caps_unref (srccaps);
result = gst_rtp_base_payload_set_outcaps_structure (payload, s);
return gst_rtp_base_payload_negotiate (payload);
gst_clear_structure (&s);
return result;
}
static void

4
gst-libs/gst/rtp/gstrtpbasepayload.h
View file

@ -160,6 +160,10 @@ GST_RTP_API
gboolean gst_rtp_base_payload_set_outcaps (GstRTPBasePayload *payload,
const gchar *fieldname, ...);
GST_RTP_API
gboolean gst_rtp_base_payload_set_outcaps_structure (GstRTPBasePayload *payload,
GstStructure *s);
GST_RTP_API
gboolean gst_rtp_base_payload_is_filled (GstRTPBasePayload *payload,
guint size, GstClockTime duration);