mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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rtp: port some pay/depayloaders
This commit is contained in:
Wim Taymans
parent
6df597cbbf
commit
0024300aa2
7 changed files with 126 additions and 86 deletions
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@ -165,47 +165,48 @@ gst_rtp_ac3_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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{
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GstRtpAC3Depay *rtpac3depay;
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GstBuffer *outbuf;
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GstRTPBuffer rtp = { NULL, };
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guint8 *payload;
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guint16 FT, NF;
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rtpac3depay = GST_RTP_AC3_DEPAY (depayload);
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{
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guint8 *payload;
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guint16 FT, NF;
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gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
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if (gst_rtp_buffer_get_payload_len (buf) < 2)
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goto empty_packet;
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if (gst_rtp_buffer_get_payload_len (&rtp) < 2)
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goto empty_packet;
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payload = gst_rtp_buffer_get_payload (buf);
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payload = gst_rtp_buffer_get_payload (&rtp);
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/* strip off header
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*
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* 0 1
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | MBZ | FT| NF |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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FT = payload[0] & 0x3;
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NF = payload[1];
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/* strip off header
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*
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* 0 1
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* 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | MBZ | FT| NF |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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*/
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FT = payload[0] & 0x3;
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NF = payload[1];
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GST_DEBUG_OBJECT (rtpac3depay, "FT: %d, NF: %d", FT, NF);
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GST_DEBUG_OBJECT (rtpac3depay, "FT: %d, NF: %d", FT, NF);
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/* We don't bother with fragmented packets yet */
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outbuf = gst_rtp_buffer_get_payload_subbuffer (buf, 2, -1);
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/* We don't bother with fragmented packets yet */
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outbuf = gst_rtp_buffer_get_payload_subbuffer (&rtp, 2, -1);
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GST_DEBUG_OBJECT (rtpac3depay, "pushing buffer of size %d",
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GST_BUFFER_SIZE (outbuf));
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gst_rtp_buffer_unmap (&rtp);
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return outbuf;
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}
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GST_DEBUG_OBJECT (rtpac3depay, "pushing buffer of size %d",
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gst_buffer_get_size (outbuf));
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return NULL;
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return outbuf;
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/* ERRORS */
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empty_packet:
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{
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GST_ELEMENT_WARNING (rtpac3depay, STREAM, DECODE,
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("Empty Payload."), (NULL));
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gst_rtp_buffer_unmap (&rtp);
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return NULL;
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}
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}
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@ -247,6 +247,7 @@ gst_rtp_ac3_pay_flush (GstRtpAC3Pay * rtpac3pay)
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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 (2 + avail, 0, 0);
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@ -294,8 +295,9 @@ gst_rtp_ac3_pay_flush (GstRtpAC3Pay * rtpac3pay)
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* 3: other fragment
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* NF: amount of frames if FT = 0, else number of fragments.
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*/
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gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
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GST_LOG_OBJECT (rtpac3pay, "FT %u, NF %u", FT, NF);
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payload = gst_rtp_buffer_get_payload (outbuf);
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payload = gst_rtp_buffer_get_payload (&rtp);
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payload[0] = (FT & 3);
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payload[1] = NF;
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payload_len -= 2;
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@ -305,7 +307,8 @@ gst_rtp_ac3_pay_flush (GstRtpAC3Pay * rtpac3pay)
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avail -= payload_len;
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if (avail == 0)
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gst_rtp_buffer_set_marker (outbuf, TRUE);
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gst_rtp_buffer_set_marker (&rtp, TRUE);
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gst_rtp_buffer_unmap (&rtp);
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GST_BUFFER_TIMESTAMP (outbuf) = rtpac3pay->first_ts;
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GST_BUFFER_DURATION (outbuf) = rtpac3pay->duration;
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@ -322,15 +325,14 @@ gst_rtp_ac3_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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{
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GstRtpAC3Pay *rtpac3pay;
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GstFlowReturn ret;
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guint size, avail, left, NF;
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gsize size, avail, left, NF;
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guint8 *data, *p;
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guint packet_len;
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GstClockTime duration, timestamp;
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rtpac3pay = GST_RTP_AC3_PAY (basepayload);
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size = GST_BUFFER_SIZE (buffer);
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data = GST_BUFFER_DATA (buffer);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
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duration = GST_BUFFER_DURATION (buffer);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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@ -374,6 +376,7 @@ gst_rtp_ac3_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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p += frame_size;
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left -= frame_size;
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}
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gst_buffer_unmap (buffer, data, size);
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if (NF == 0)
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goto no_frames;
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@ -158,14 +158,18 @@ gst_rtp_bv_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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{
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GstBuffer *outbuf;
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gboolean marker;
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GstRTPBuffer rtp = { NULL, };
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marker = gst_rtp_buffer_get_marker (buf);
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gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
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marker = gst_rtp_buffer_get_marker (&rtp);
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GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d",
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GST_BUFFER_SIZE (buf), marker,
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gst_rtp_buffer_get_timestamp (buf), gst_rtp_buffer_get_seq (buf));
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gst_buffer_get_size (buf), marker,
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gst_rtp_buffer_get_timestamp (&rtp), gst_rtp_buffer_get_seq (&rtp));
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outbuf = gst_rtp_buffer_get_payload_buffer (buf);
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outbuf = gst_rtp_buffer_get_payload_buffer (&rtp);
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gst_rtp_buffer_unmap (&rtp);
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if (marker) {
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/* mark start of talkspurt with DISCONT */
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@ -122,7 +122,8 @@ gst_rtp_celt_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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GstRtpCELTDepay *rtpceltdepay;
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gint clock_rate, nb_channels = 0, frame_size = 0;
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GstBuffer *buf;
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guint8 *data;
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guint8 *data, *ptr;
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gsize size;
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const gchar *params;
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GstCaps *srccaps;
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gboolean res;
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@ -151,26 +152,27 @@ gst_rtp_celt_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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/* construct minimal header and comment packet for the decoder */
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buf = gst_buffer_new_and_alloc (60);
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data = GST_BUFFER_DATA (buf);
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memcpy (data, "CELT ", 8);
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data += 8;
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memcpy (data, "1.1.12", 7);
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data += 20;
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GST_WRITE_UINT32_LE (data, 0x80000006); /* version */
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data += 4;
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GST_WRITE_UINT32_LE (data, 56); /* header_size */
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data += 4;
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GST_WRITE_UINT32_LE (data, clock_rate); /* rate */
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data += 4;
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GST_WRITE_UINT32_LE (data, nb_channels); /* channels */
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data += 4;
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GST_WRITE_UINT32_LE (data, frame_size); /* frame-size */
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data += 4;
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GST_WRITE_UINT32_LE (data, -1); /* overlap */
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data += 4;
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GST_WRITE_UINT32_LE (data, -1); /* bytes_per_packet */
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data += 4;
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GST_WRITE_UINT32_LE (data, 0); /* extra headers */
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ptr = data = gst_buffer_map (buf, &size, NULL, GST_MAP_WRITE);
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memcpy (ptr, "CELT ", 8);
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ptr += 8;
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memcpy (ptr, "1.1.12", 7);
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ptr += 20;
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GST_WRITE_UINT32_LE (ptr, 0x80000006); /* version */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, 56); /* header_size */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, clock_rate); /* rate */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, nb_channels); /* channels */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, frame_size); /* frame-size */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, -1); /* overlap */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, -1); /* bytes_per_packet */
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ptr += 4;
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GST_WRITE_UINT32_LE (ptr, 0); /* extra headers */
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gst_buffer_unmap (buf, data, size);
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srccaps = gst_caps_new_simple ("audio/x-celt", NULL);
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res = gst_pad_set_caps (depayload->srcpad, srccaps);
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@ -180,8 +182,7 @@ gst_rtp_celt_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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gst_base_rtp_depayload_push (GST_BASE_RTP_DEPAYLOAD (rtpceltdepay), buf);
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buf = gst_buffer_new_and_alloc (sizeof (gst_rtp_celt_comment));
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memcpy (GST_BUFFER_DATA (buf), gst_rtp_celt_comment,
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sizeof (gst_rtp_celt_comment));
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gst_buffer_fill (buf, 0, gst_rtp_celt_comment, sizeof (gst_rtp_celt_comment));
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gst_buffer_set_caps (buf, GST_PAD_CAPS (depayload->srcpad));
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gst_base_rtp_depayload_push (GST_BASE_RTP_DEPAYLOAD (rtpceltdepay), buf);
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@ -207,6 +208,7 @@ gst_rtp_celt_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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GstClockTime framesize_ns = 0, timestamp;
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guint n = 0;
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GstRtpCELTDepay *rtpceltdepay;
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GstRTPBuffer rtp = { NULL, };
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rtpceltdepay = GST_RTP_CELT_DEPAY (depayload);
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clock_rate = depayload->clock_rate;
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@ -215,17 +217,19 @@ gst_rtp_celt_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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timestamp = GST_BUFFER_TIMESTAMP (buf);
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gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
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GST_LOG_OBJECT (depayload, "got %d bytes, mark %d ts %u seqn %d",
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GST_BUFFER_SIZE (buf),
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gst_rtp_buffer_get_marker (buf),
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gst_rtp_buffer_get_timestamp (buf), gst_rtp_buffer_get_seq (buf));
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gst_buffer_get_size (buf),
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gst_rtp_buffer_get_marker (&rtp),
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gst_rtp_buffer_get_timestamp (&rtp), gst_rtp_buffer_get_seq (&rtp));
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GST_LOG_OBJECT (depayload, "got clock-rate=%d, frame_size=%d, "
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"_ns=%" GST_TIME_FORMAT ", timestamp=%" GST_TIME_FORMAT, clock_rate,
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frame_size, GST_TIME_ARGS (framesize_ns), GST_TIME_ARGS (timestamp));
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payload = gst_rtp_buffer_get_payload (buf);
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payload_len = gst_rtp_buffer_get_payload_len (buf);
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payload = gst_rtp_buffer_get_payload (&rtp);
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payload_len = gst_rtp_buffer_get_payload_len (&rtp);
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/* first count how many bytes are consumed by the size headers and make offset
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* point to the first data byte */
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@ -250,7 +254,7 @@ gst_rtp_celt_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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total_size += size + 1;
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} while (s == 0xff);
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outbuf = gst_rtp_buffer_get_payload_subbuffer (buf, offset, size);
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outbuf = gst_rtp_buffer_get_payload_subbuffer (&rtp, offset, size);
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offset += size;
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if (frame_size != -1 && clock_rate != -1) {
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@ -264,6 +268,8 @@ gst_rtp_celt_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
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gst_base_rtp_depayload_push (depayload, outbuf);
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}
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gst_rtp_buffer_unmap (&rtp);
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return NULL;
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}
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@ -310,6 +310,7 @@ gst_rtp_celt_pay_flush_queued (GstRtpCELTPay * rtpceltpay)
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guint8 *payload, *spayload;
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guint payload_len;
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GstClockTime duration;
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GstRTPBuffer rtp = { NULL, };
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payload_len = rtpceltpay->bytes + rtpceltpay->sbytes;
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duration = rtpceltpay->qduration;
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@ -322,8 +323,10 @@ gst_rtp_celt_pay_flush_queued (GstRtpCELTPay * rtpceltpay)
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GST_BUFFER_DURATION (outbuf) = duration;
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gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
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/* point to the payload for size headers and data */
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spayload = gst_rtp_buffer_get_payload (outbuf);
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spayload = gst_rtp_buffer_get_payload (&rtp);
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payload = spayload + rtpceltpay->sbytes;
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while ((buf = g_queue_pop_head (rtpceltpay->queue))) {
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@ -334,20 +337,21 @@ gst_rtp_celt_pay_flush_queued (GstRtpCELTPay * rtpceltpay)
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GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buf);
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/* write the size to the header */
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size = GST_BUFFER_SIZE (buf);
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size = gst_buffer_get_size (buf);
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while (size > 0xff) {
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*spayload++ = 0xff;
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size -= 0xff;
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}
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*spayload++ = size;
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size = GST_BUFFER_SIZE (buf);
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/* copy payload */
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memcpy (payload, GST_BUFFER_DATA (buf), size);
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size = gst_buffer_get_size (buf);
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gst_buffer_extract (buf, 0, payload, size);
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payload += size;
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gst_buffer_unref (buf);
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}
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gst_rtp_buffer_unmap (&rtp);
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/* we consumed it all */
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rtpceltpay->bytes = 0;
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@ -365,7 +369,7 @@ gst_rtp_celt_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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{
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GstFlowReturn ret;
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GstRtpCELTPay *rtpceltpay;
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guint size, payload_len;
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gsize size, payload_len;
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guint8 *data;
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GstClockTime duration, packet_dur;
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guint i, ssize, packet_len;
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@ -374,8 +378,7 @@ gst_rtp_celt_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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ret = GST_FLOW_OK;
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size = GST_BUFFER_SIZE (buffer);
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data = GST_BUFFER_DATA (buffer);
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data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
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switch (rtpceltpay->packet) {
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case 0:
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@ -384,14 +387,15 @@ gst_rtp_celt_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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if (!gst_rtp_celt_pay_parse_ident (rtpceltpay, data, size))
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goto parse_error;
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goto done;
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goto cleanup;
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case 1:
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/* comment packet, we ignore it */
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goto done;
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goto cleanup;
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default:
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/* other packets go in the payload */
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break;
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}
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gst_buffer_unmap (buffer, data, size);
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duration = GST_BUFFER_DURATION (buffer);
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@ -429,10 +433,16 @@ done:
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return ret;
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/* ERRORS */
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cleanup:
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{
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gst_buffer_unmap (buffer, data, size);
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goto done;
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}
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parse_error:
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{
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GST_ELEMENT_ERROR (rtpceltpay, STREAM, DECODE, (NULL),
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("Error parsing first identification packet."));
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gst_buffer_unmap (buffer, data, size);
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return GST_FLOW_ERROR;
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}
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}
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@ -172,6 +172,8 @@ gst_rtp_dv_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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gint clock_rate;
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gboolean systemstream, ret;
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const gchar *encode, *media;
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guint8 *data;
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gsize size;
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rtpdvdepay = GST_RTP_DV_DEPAY (depayload);
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@ -216,7 +218,9 @@ gst_rtp_dv_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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/* Initialize the new accumulator frame.
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* If the previous frame exists, copy that into the accumulator frame.
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* This way, missing packets in the stream won't show up badly. */
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memset (GST_BUFFER_DATA (rtpdvdepay->acc), 0, rtpdvdepay->frame_size);
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data = gst_buffer_map (rtpdvdepay->acc, &size, NULL, GST_MAP_WRITE);
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memset (data, 0, rtpdvdepay->frame_size);
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gst_buffer_unmap (rtpdvdepay->acc, data, size);
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|
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srccaps = gst_caps_new_simple ("video/x-dv",
|
||||
"systemstream", G_TYPE_BOOLEAN, systemstream,
|
||||
|
|
@ -300,12 +304,15 @@ gst_rtp_dv_depay_process (GstBaseRTPDepayload * base, GstBuffer * in)
|
|||
guint payload_len, location;
|
||||
GstRTPDVDepay *dvdepay = GST_RTP_DV_DEPAY (base);
|
||||
gboolean marker;
|
||||
GstRTPBuffer rtp = { NULL, };
|
||||
|
||||
marker = gst_rtp_buffer_get_marker (in);
|
||||
gst_rtp_buffer_map (in, GST_MAP_READ, &rtp);
|
||||
|
||||
marker = gst_rtp_buffer_get_marker (&rtp);
|
||||
|
||||
/* Check if the received packet contains (the start of) a new frame, we do
|
||||
* this by checking the RTP timestamp. */
|
||||
rtp_ts = gst_rtp_buffer_get_timestamp (in);
|
||||
rtp_ts = gst_rtp_buffer_get_timestamp (&rtp);
|
||||
|
||||
/* we cannot copy the packet yet if the marker is set, we will do that below
|
||||
* after taking out the data */
|
||||
|
|
@ -319,8 +326,8 @@ gst_rtp_dv_depay_process (GstBaseRTPDepayload * base, GstBuffer * in)
|
|||
}
|
||||
|
||||
/* Extract the payload */
|
||||
payload_len = gst_rtp_buffer_get_payload_len (in);
|
||||
payload = gst_rtp_buffer_get_payload (in);
|
||||
payload_len = gst_rtp_buffer_get_payload_len (&rtp);
|
||||
payload = gst_rtp_buffer_get_payload (&rtp);
|
||||
|
||||
/* copy all DIF chunks in their place. */
|
||||
while (payload_len >= 80) {
|
||||
|
|
@ -343,11 +350,12 @@ gst_rtp_dv_depay_process (GstBaseRTPDepayload * base, GstBuffer * in)
|
|||
|
||||
/* And copy it in, provided the location is sane. */
|
||||
if (offset >= 0 && offset <= dvdepay->frame_size - 80)
|
||||
memcpy (GST_BUFFER_DATA (dvdepay->acc) + offset, payload, 80);
|
||||
gst_buffer_fill (dvdepay->acc, offset, payload, 80);
|
||||
|
||||
payload += 80;
|
||||
payload_len -= 80;
|
||||
}
|
||||
gst_rtp_buffer_unmap (&rtp);
|
||||
|
||||
if (marker) {
|
||||
GST_DEBUG_OBJECT (dvdepay, "marker bit complete frame %u", rtp_ts);
|
||||
|
|
|
|||
|
|
@ -183,7 +183,7 @@ gst_rtp_dv_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
|
|||
}
|
||||
|
||||
static gboolean
|
||||
gst_dv_pay_negotiate (GstRTPDVPay * rtpdvpay, guint8 * data, guint size)
|
||||
gst_dv_pay_negotiate (GstRTPDVPay * rtpdvpay, guint8 * data, gsize size)
|
||||
{
|
||||
const gchar *encode, *media;
|
||||
gboolean audio_bundled, res;
|
||||
|
|
@ -284,10 +284,11 @@ gst_rtp_dv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
|
|||
GstBuffer *outbuf;
|
||||
GstFlowReturn ret = GST_FLOW_OK;
|
||||
gint hdrlen;
|
||||
guint size;
|
||||
guint8 *data;
|
||||
gsize size, osize;
|
||||
guint8 *data, *odata;
|
||||
guint8 *dest;
|
||||
guint filled;
|
||||
GstRTPBuffer rtp = { NULL, };
|
||||
|
||||
rtpdvpay = GST_RTP_DV_PAY (basepayload);
|
||||
|
||||
|
|
@ -300,8 +301,10 @@ gst_rtp_dv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
|
|||
max_payload_size = ((GST_BASE_RTP_PAYLOAD_MTU (rtpdvpay) - hdrlen) / 80) * 80;
|
||||
|
||||
/* The length of the buffer to transmit. */
|
||||
size = GST_BUFFER_SIZE (buffer);
|
||||
data = GST_BUFFER_DATA (buffer);
|
||||
data = gst_buffer_map (buffer, &size, NULL, GST_MAP_READ);
|
||||
|
||||
odata = data;
|
||||
osize = size;
|
||||
|
||||
GST_DEBUG_OBJECT (rtpdvpay,
|
||||
"DV RTP payloader got buffer of %u bytes, splitting in %u byte "
|
||||
|
|
@ -324,7 +327,9 @@ gst_rtp_dv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
|
|||
if (outbuf == NULL) {
|
||||
outbuf = gst_rtp_buffer_new_allocate (max_payload_size, 0, 0);
|
||||
GST_BUFFER_TIMESTAMP (outbuf) = GST_BUFFER_TIMESTAMP (buffer);
|
||||
dest = gst_rtp_buffer_get_payload (outbuf);
|
||||
|
||||
gst_rtp_buffer_map (outbuf, GST_MAP_WRITE, &rtp);
|
||||
dest = gst_rtp_buffer_get_payload (&rtp);
|
||||
filled = 0;
|
||||
}
|
||||
|
||||
|
|
@ -348,13 +353,15 @@ gst_rtp_dv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
|
|||
guint hlen;
|
||||
|
||||
/* set marker */
|
||||
gst_rtp_buffer_set_marker (outbuf, TRUE);
|
||||
gst_rtp_buffer_set_marker (&rtp, TRUE);
|
||||
|
||||
/* shrink buffer to last packet */
|
||||
hlen = gst_rtp_buffer_get_header_len (outbuf);
|
||||
gst_rtp_buffer_set_packet_len (outbuf, hlen + filled);
|
||||
hlen = gst_rtp_buffer_get_header_len (&rtp);
|
||||
gst_rtp_buffer_set_packet_len (&rtp, hlen + filled);
|
||||
}
|
||||
|
||||
/* Push out the created piece, and check for errors. */
|
||||
gst_rtp_buffer_unmap (&rtp);
|
||||
ret = gst_basertppayload_push (basepayload, outbuf);
|
||||
if (ret != GST_FLOW_OK)
|
||||
break;
|
||||
|
|
@ -362,6 +369,7 @@ gst_rtp_dv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
|
|||
outbuf = NULL;
|
||||
}
|
||||
}
|
||||
gst_buffer_unmap (buffer, odata, osize);
|
||||
gst_buffer_unref (buffer);
|
||||
|
||||
return ret;
|
||||
|
|
|
|||
Loading…
Reference in a new issue