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f96d18e959
commit
182596b3ab
1 changed files with 56 additions and 27 deletions
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@ -117,35 +117,56 @@ gst_rtp_mp2t_pay_setcaps (GstRTPBasePayload * payload, GstCaps * caps)
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static GstFlowReturn
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static GstFlowReturn
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gst_rtp_mp2t_pay_flush (GstRTPMP2TPay * rtpmp2tpay)
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gst_rtp_mp2t_pay_flush (GstRTPMP2TPay * rtpmp2tpay)
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{
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{
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guint avail;
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guint avail, mtu;
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guint8 *payload;
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GstFlowReturn ret = GST_FLOW_OK;
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GstFlowReturn ret;
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GstBuffer *outbuf;
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GstBuffer *outbuf;
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GstRTPBuffer rtp = { NULL };
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avail = gst_adapter_available (rtpmp2tpay->adapter);
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avail = gst_adapter_available (rtpmp2tpay->adapter);
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if (avail == 0)
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return GST_FLOW_OK;
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mtu = GST_RTP_BASE_PAYLOAD_MTU (rtpmp2tpay);
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outbuf = gst_rtp_buffer_new_allocate (avail, 0, 0);
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while (avail > 0 && (ret == GST_FLOW_OK)) {
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guint towrite;
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guint8 *payload;
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guint payload_len;
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guint packet_len;
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GstRTPBuffer rtp = { NULL };
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/* this will be the total length of the packet */
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packet_len = gst_rtp_buffer_calc_packet_len (avail, 0, 0);
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/* fill one MTU or all available bytes */
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towrite = MIN (packet_len, mtu);
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/* this is the payload length */
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payload_len = gst_rtp_buffer_calc_payload_len (towrite, 0, 0);
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payload_len -= payload_len % 188;
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/* need whole packets */
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if (!payload_len)
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break;
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/* create buffer to hold the payload */
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outbuf = gst_rtp_buffer_new_allocate (payload_len, 0, 0);
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/* get payload */
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/* get payload */
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gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
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gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
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payload = gst_rtp_buffer_get_payload (&rtp);
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payload = gst_rtp_buffer_get_payload (&rtp);
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/* copy stuff from adapter to payload */
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/* copy stuff from adapter to payload */
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gst_adapter_copy (rtpmp2tpay->adapter, payload, 0, avail);
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gst_adapter_copy (rtpmp2tpay->adapter, payload, 0, payload_len);
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gst_rtp_buffer_unmap (&rtp);
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gst_rtp_buffer_unmap (&rtp);
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gst_adapter_flush (rtpmp2tpay->adapter, payload_len);
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avail -= payload_len;
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GST_BUFFER_TIMESTAMP (outbuf) = rtpmp2tpay->first_ts;
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GST_BUFFER_TIMESTAMP (outbuf) = rtpmp2tpay->first_ts;
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GST_BUFFER_DURATION (outbuf) = rtpmp2tpay->duration;
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GST_BUFFER_DURATION (outbuf) = rtpmp2tpay->duration;
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GST_DEBUG_OBJECT (rtpmp2tpay, "pushing buffer of size %" G_GSIZE_FORMAT,
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GST_DEBUG_OBJECT (rtpmp2tpay, "pushing buffer of size %d",
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gst_buffer_get_size (outbuf));
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gst_buffer_get_size (outbuf));
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ret = gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (rtpmp2tpay), outbuf);
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ret = gst_rtp_base_payload_push (GST_RTP_BASE_PAYLOAD (rtpmp2tpay), outbuf);
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}
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/* flush the adapter content */
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gst_adapter_flush (rtpmp2tpay->adapter, avail);
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return ret;
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return ret;
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}
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}
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@ -165,6 +186,7 @@ gst_rtp_mp2t_pay_handle_buffer (GstRTPBasePayload * basepayload,
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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again:
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ret = GST_FLOW_OK;
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ret = GST_FLOW_OK;
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avail = gst_adapter_available (rtpmp2tpay->adapter);
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avail = gst_adapter_available (rtpmp2tpay->adapter);
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@ -174,13 +196,12 @@ gst_rtp_mp2t_pay_handle_buffer (GstRTPBasePayload * basepayload,
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rtpmp2tpay->duration = duration;
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rtpmp2tpay->duration = duration;
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}
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}
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/* get packet length of previous data and this new data,
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/* get packet length of previous data and this new data */
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* payload length includes a 4 byte header */
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packet_len = gst_rtp_buffer_calc_packet_len (avail + size, 0, 0);
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packet_len = gst_rtp_buffer_calc_packet_len (4 + avail + size, 0, 0);
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/* if this buffer is going to overflow the packet, flush what we
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/* if this buffer is going to overflow the packet, flush what we have,
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* have. */
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* or if upstream is handing us several packets, to keep latency low */
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if (gst_rtp_base_payload_is_filled (basepayload,
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if (!size || gst_rtp_base_payload_is_filled (basepayload,
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packet_len, rtpmp2tpay->duration + duration)) {
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packet_len, rtpmp2tpay->duration + duration)) {
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ret = gst_rtp_mp2t_pay_flush (rtpmp2tpay);
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ret = gst_rtp_mp2t_pay_flush (rtpmp2tpay);
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rtpmp2tpay->first_ts = timestamp;
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rtpmp2tpay->first_ts = timestamp;
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@ -193,7 +214,15 @@ gst_rtp_mp2t_pay_handle_buffer (GstRTPBasePayload * basepayload,
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}
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}
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/* copy buffer to adapter */
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/* copy buffer to adapter */
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if (buffer) {
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gst_adapter_push (rtpmp2tpay->adapter, buffer);
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gst_adapter_push (rtpmp2tpay->adapter, buffer);
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buffer = NULL;
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}
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if (size >= (188 * 2)) {
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size = 0;
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goto again;
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}
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return ret;
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return ret;
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