mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-07-04 05:35:53 +00:00
rtpmux: Add support for GstBufferList
Factor out most of the buffer handling and implement a chain_list function. Also, the DTMF muxer has been modified to just have a function to accept or reject a buffer instead of having to subclass both chain and chain_list.
This commit is contained in:
Olivier Crête
parent
5d21b0815a
commit
d46275c37f
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@ -66,7 +66,8 @@ static GstPad *gst_rtp_dtmf_mux_request_new_pad (GstElement * element,
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static GstStateChangeReturn gst_rtp_dtmf_mux_change_state (GstElement * element,
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GstStateChange transition);
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static GstFlowReturn gst_rtp_dtmf_mux_chain (GstPad * pad, GstBuffer * buffer);
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static gboolean gst_rtp_dtmf_mux_accept_buffer_locked (GstRTPMux * rtp_mux,
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GstRTPMuxPadPrivate * padpriv, GstBuffer * buffer);
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GST_BOILERPLATE (GstRTPDTMFMux, gst_rtp_dtmf_mux, GstRTPMux, GST_TYPE_RTP_MUX);
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@ -104,24 +105,19 @@ gst_rtp_dtmf_mux_class_init (GstRTPDTMFMuxClass * klass)
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GST_DEBUG_FUNCPTR (gst_rtp_dtmf_mux_request_new_pad);
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gstelement_class->change_state =
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GST_DEBUG_FUNCPTR (gst_rtp_dtmf_mux_change_state);
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gstrtpmux_class->chain_func = GST_DEBUG_FUNCPTR (gst_rtp_dtmf_mux_chain);
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gstrtpmux_class->accept_buffer_locked = gst_rtp_dtmf_mux_accept_buffer_locked;
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}
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static GstFlowReturn
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gst_rtp_dtmf_mux_chain (GstPad * pad, GstBuffer * buffer)
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static gboolean
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gst_rtp_dtmf_mux_accept_buffer_locked (GstRTPMux * rtp_mux,
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GstRTPMuxPadPrivate * padpriv, GstBuffer * buffer)
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{
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GstRTPDTMFMux *mux;
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GstFlowReturn ret = GST_FLOW_ERROR;
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GstRTPMuxPadPrivate *padpriv = NULL;
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GstRTPDTMFMux *mux = GST_RTP_DTMF_MUX (rtp_mux);
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GstClockTime running_ts;
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mux = GST_RTP_DTMF_MUX (gst_pad_get_parent (pad));
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running_ts = GST_BUFFER_TIMESTAMP (buffer);
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GST_OBJECT_LOCK (mux);
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if (GST_CLOCK_TIME_IS_VALID (running_ts)) {
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padpriv = gst_pad_get_element_private (pad);
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if (padpriv && padpriv->segment.format == GST_FORMAT_TIME)
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running_ts = gst_segment_to_running_time (&padpriv->segment,
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GST_FORMAT_TIME, GST_BUFFER_TIMESTAMP (buffer));
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@ -134,12 +130,12 @@ gst_rtp_dtmf_mux_chain (GstPad * pad, GstBuffer * buffer)
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mux->last_priority_end);
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else
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mux->last_priority_end = running_ts + GST_BUFFER_DURATION (buffer);
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GST_LOG_OBJECT (mux, "Got buffer %p on priority pad %s,"
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GST_LOG_OBJECT (mux, "Got buffer %p on priority pad, "
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" blocking regular pads until %" GST_TIME_FORMAT, buffer,
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GST_PAD_NAME (pad), GST_TIME_ARGS (mux->last_priority_end));
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GST_TIME_ARGS (mux->last_priority_end));
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} else {
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GST_WARNING_OBJECT (mux, "Buffer %p on pad %s has an invalid duration,"
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" not blocking other pad", buffer, GST_PAD_NAME (pad));
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GST_WARNING_OBJECT (mux, "Buffer %p has an invalid duration,"
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" not blocking other pad", buffer);
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}
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} else {
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if (GST_CLOCK_TIME_IS_VALID (mux->last_priority_end) &&
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@ -147,30 +143,15 @@ gst_rtp_dtmf_mux_chain (GstPad * pad, GstBuffer * buffer)
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GST_LOG_OBJECT (mux, "Dropping buffer %p because running time"
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" %" GST_TIME_FORMAT " < %" GST_TIME_FORMAT, buffer,
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GST_TIME_ARGS (running_ts), GST_TIME_ARGS (mux->last_priority_end));
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goto drop_buffer;
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return FALSE;
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}
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}
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} else {
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GST_LOG_OBJECT (pad, "Buffer %p has an invalid timestamp,"
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GST_LOG_OBJECT (mux, "Buffer %p has an invalid timestamp,"
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" letting through", buffer);
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}
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GST_OBJECT_UNLOCK (mux);
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if (parent_class->chain_func)
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ret = parent_class->chain_func (pad, buffer);
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else
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gst_buffer_unref (buffer);
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out:
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gst_object_unref (mux);
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return ret;
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drop_buffer:
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gst_buffer_unref (buffer);
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ret = GST_FLOW_OK;
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GST_OBJECT_UNLOCK (mux);
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goto out;
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return TRUE;
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}
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@ -72,6 +72,8 @@ static GstPad *gst_rtp_mux_request_new_pad (GstElement * element,
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GstPadTemplate * templ, const gchar * name);
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static void gst_rtp_mux_release_pad (GstElement * element, GstPad * pad);
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static GstFlowReturn gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer);
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static GstFlowReturn gst_rtp_mux_chain_list (GstPad * pad,
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GstBufferList * bufferlist);
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static gboolean gst_rtp_mux_setcaps (GstPad * pad, GstCaps * caps);
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static GstCaps *gst_rtp_mux_getcaps (GstPad * pad);
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static gboolean gst_rtp_mux_sink_event (GstPad * pad, GstEvent * event);
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@ -137,8 +139,6 @@ gst_rtp_mux_class_init (GstRTPMuxClass * klass)
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GST_DEBUG_FUNCPTR (gst_rtp_mux_request_new_pad);
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gstelement_class->release_pad = GST_DEBUG_FUNCPTR (gst_rtp_mux_release_pad);
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gstelement_class->change_state = GST_DEBUG_FUNCPTR (gst_rtp_mux_change_state);
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klass->chain_func = gst_rtp_mux_chain;
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}
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static void
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@ -227,8 +227,9 @@ gst_rtp_mux_setup_sinkpad (GstRTPMux * rtp_mux, GstPad * sinkpad)
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/* setup some pad functions */
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gst_pad_set_setcaps_function (sinkpad, gst_rtp_mux_setcaps);
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gst_pad_set_getcaps_function (sinkpad, gst_rtp_mux_getcaps);
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if (klass->chain_func)
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gst_pad_set_chain_function (sinkpad, klass->chain_func);
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gst_pad_set_chain_function (sinkpad, GST_DEBUG_FUNCPTR (gst_rtp_mux_chain));
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gst_pad_set_chain_list_function (sinkpad,
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GST_DEBUG_FUNCPTR (gst_rtp_mux_chain_list));
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gst_pad_set_event_function (sinkpad,
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GST_DEBUG_FUNCPTR (gst_rtp_mux_sink_event));
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@ -287,19 +288,14 @@ gst_rtp_mux_release_pad (GstElement * element, GstPad * pad)
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/* Put our own clock-base on the buffer */
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static void
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gst_rtp_mux_readjust_rtp_timestamp (GstRTPMux * rtp_mux, GstPad * pad,
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GstBuffer * buffer)
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gst_rtp_mux_readjust_rtp_timestamp_locked (GstRTPMux * rtp_mux,
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GstRTPMuxPadPrivate * padpriv, GstBuffer * buffer)
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{
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guint32 ts;
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guint32 sink_ts_base = 0;
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GstRTPMuxPadPrivate *padpriv;
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GST_OBJECT_LOCK (rtp_mux);
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padpriv = gst_pad_get_element_private (pad);
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if (padpriv && padpriv->have_clock_base)
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sink_ts_base = padpriv->clock_base;
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GST_OBJECT_UNLOCK (rtp_mux);
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ts = gst_rtp_buffer_get_timestamp (buffer) - sink_ts_base + rtp_mux->ts_base;
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GST_LOG_OBJECT (rtp_mux, "Re-adjusting RTP ts %u to %u",
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@ -307,6 +303,110 @@ gst_rtp_mux_readjust_rtp_timestamp (GstRTPMux * rtp_mux, GstPad * pad,
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gst_rtp_buffer_set_timestamp (buffer, ts);
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}
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static gboolean
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process_buffer_locked (GstRTPMux * rtp_mux, GstRTPMuxPadPrivate * padpriv,
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GstBuffer * buffer)
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{
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GstRTPMuxClass *klass = GST_RTP_MUX_GET_CLASS (rtp_mux);
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if (klass->accept_buffer_locked)
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if (!klass->accept_buffer_locked (rtp_mux, padpriv, buffer))
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return FALSE;
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rtp_mux->seqnum++;
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gst_rtp_buffer_set_seq (buffer, rtp_mux->seqnum);
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gst_rtp_buffer_set_ssrc (buffer, rtp_mux->current_ssrc);
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gst_rtp_mux_readjust_rtp_timestamp_locked (rtp_mux, padpriv, buffer);
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GST_LOG_OBJECT (rtp_mux, "Pushing packet size %d, seq=%d, ts=%u",
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GST_BUFFER_SIZE (buffer), rtp_mux->seqnum,
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gst_rtp_buffer_get_timestamp (buffer));
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if (padpriv) {
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gst_buffer_set_caps (buffer, padpriv->out_caps);
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if (padpriv->segment.format == GST_FORMAT_TIME)
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GST_BUFFER_TIMESTAMP (buffer) =
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gst_segment_to_running_time (&padpriv->segment, GST_FORMAT_TIME,
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GST_BUFFER_TIMESTAMP (buffer));
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}
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return TRUE;
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}
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static GstFlowReturn
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gst_rtp_mux_chain_list (GstPad * pad, GstBufferList * bufferlist)
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{
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GstRTPMux *rtp_mux;
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GstFlowReturn ret;
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GstBufferListIterator *it;
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GstRTPMuxPadPrivate *padpriv;
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GstEvent *newseg_event = NULL;
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gboolean drop = TRUE;
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rtp_mux = GST_RTP_MUX (gst_pad_get_parent (pad));
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if (!gst_rtp_buffer_list_validate (bufferlist)) {
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GST_ERROR_OBJECT (rtp_mux, "Invalid RTP buffer");
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gst_object_unref (rtp_mux);
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return GST_FLOW_ERROR;
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}
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GST_OBJECT_LOCK (rtp_mux);
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padpriv = gst_pad_get_element_private (pad);
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if (!padpriv) {
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GST_OBJECT_UNLOCK (rtp_mux);
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ret = GST_FLOW_NOT_LINKED;
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gst_buffer_list_unref (bufferlist);
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goto out;
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}
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bufferlist = gst_buffer_list_make_writable (bufferlist);
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it = gst_buffer_list_iterate (bufferlist);
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while (gst_buffer_list_iterator_next_group (it)) {
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GstBuffer *rtpbuf;
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rtpbuf = gst_buffer_list_iterator_next (it);
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rtpbuf = gst_buffer_make_writable (rtpbuf);
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drop = !process_buffer_locked (rtp_mux, padpriv, rtpbuf);
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if (drop)
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break;
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gst_buffer_list_iterator_take (it, rtpbuf);
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}
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gst_buffer_list_iterator_free (it);
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if (!drop && rtp_mux->segment_pending) {
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/*
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* We set the start at 0, because we re-timestamps to the running time
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*/
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newseg_event = gst_event_new_new_segment_full (FALSE, 1.0, 1.0,
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GST_FORMAT_TIME, 0, -1, 0);
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rtp_mux->segment_pending = FALSE;
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}
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GST_OBJECT_UNLOCK (rtp_mux);
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if (newseg_event)
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gst_pad_push_event (rtp_mux->srcpad, newseg_event);
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if (drop) {
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gst_buffer_list_unref (bufferlist);
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ret = GST_FLOW_OK;
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} else {
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ret = gst_pad_push_list (rtp_mux->srcpad, bufferlist);
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}
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out:
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gst_object_unref (rtp_mux);
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return ret;
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}
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static GstFlowReturn
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gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
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{
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@ -314,6 +414,7 @@ gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
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GstFlowReturn ret;
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GstRTPMuxPadPrivate *padpriv;
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GstEvent *newseg_event = NULL;
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gboolean drop;
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rtp_mux = GST_RTP_MUX (gst_pad_get_parent (pad));
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@ -324,21 +425,21 @@ gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
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return GST_FLOW_ERROR;
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}
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buffer = gst_buffer_make_writable (buffer);
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GST_OBJECT_LOCK (rtp_mux);
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rtp_mux->seqnum++;
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gst_rtp_buffer_set_seq (buffer, rtp_mux->seqnum);
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padpriv = gst_pad_get_element_private (pad);
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if (padpriv) {
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gst_buffer_set_caps (buffer, padpriv->out_caps);
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if (padpriv->segment.format == GST_FORMAT_TIME)
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GST_BUFFER_TIMESTAMP (buffer) =
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gst_segment_to_running_time (&padpriv->segment, GST_FORMAT_TIME,
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GST_BUFFER_TIMESTAMP (buffer));
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if (!padpriv) {
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GST_OBJECT_UNLOCK (rtp_mux);
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ret = GST_FLOW_NOT_LINKED;
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gst_buffer_unref (buffer);
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goto out;
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}
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if (rtp_mux->segment_pending) {
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buffer = gst_buffer_make_writable (buffer);
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drop = !process_buffer_locked (rtp_mux, padpriv, buffer);
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if (!drop && rtp_mux->segment_pending) {
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/*
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* We set the start at 0, because we re-timestamps to the running time
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*/
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@ -349,23 +450,16 @@ gst_rtp_mux_chain (GstPad * pad, GstBuffer * buffer)
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}
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GST_OBJECT_UNLOCK (rtp_mux);
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gst_rtp_buffer_set_ssrc (buffer, rtp_mux->current_ssrc);
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gst_rtp_mux_readjust_rtp_timestamp (rtp_mux, pad, buffer);
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GST_LOG_OBJECT (rtp_mux, "Pushing packet size %d, seq=%d, ts=%u",
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GST_BUFFER_SIZE (buffer), rtp_mux->seqnum,
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gst_rtp_buffer_get_timestamp (buffer));
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if (newseg_event)
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gst_pad_push_event (rtp_mux->srcpad, newseg_event);
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if (!padpriv) {
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ret = GST_FLOW_NOT_LINKED;
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if (drop) {
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gst_buffer_unref (buffer);
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goto out;
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ret = GST_FLOW_OK;
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} else {
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ret = gst_pad_push (rtp_mux->srcpad, buffer);
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}
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ret = gst_pad_push (rtp_mux->srcpad, buffer);
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out:
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gst_object_unref (rtp_mux);
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@ -38,6 +38,20 @@ G_BEGIN_DECLS
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typedef struct _GstRTPMux GstRTPMux;
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typedef struct _GstRTPMuxClass GstRTPMuxClass;
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typedef struct
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{
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gboolean have_clock_base;
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guint clock_base;
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GstCaps *out_caps;
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GstSegment segment;
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gboolean priority;
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} GstRTPMuxPadPrivate;
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/**
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* GstRTPMux:
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*
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@ -66,23 +80,11 @@ struct _GstRTPMuxClass
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{
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GstElementClass parent_class;
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GstFlowReturn (*chain_func) (GstPad * pad, GstBuffer * buffer);
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gboolean (*accept_buffer_locked) (GstRTPMux *rtp_mux,
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GstRTPMuxPadPrivate * padpriv, GstBuffer * buffer);
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};
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typedef struct
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{
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gboolean have_clock_base;
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guint clock_base;
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GstCaps *out_caps;
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GstSegment segment;
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gboolean priority;
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} GstRTPMuxPadPrivate;
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GType gst_rtp_mux_get_type (void);
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gboolean gst_rtp_mux_plugin_init (GstPlugin * plugin);
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