--- a/gst_plugins_good/gst/qtdemux/gstrtpxqtdepay.c Fri Jul 09 16:26:45 2010 -0500
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,704 +0,0 @@
-/* GStreamer
- * Copyright (C) <2006> Wim Taymans <wim@fluendo.com>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/*
- * based on http://developer.apple.com/quicktime/icefloe/dispatch026.html
- */
-#ifdef HAVE_CONFIG_H
-# include "config.h"
-#endif
-
-#include <gst/rtp/gstrtpbuffer.h>
-
-#include <string.h>
-#include "gstrtpxqtdepay.h"
-
-#define MAKE_TLV(a,b) (((a)<<8)|(b))
-
-#define TLV_sd MAKE_TLV ('s','d')
-#define TLV_qt MAKE_TLV ('q','t')
-#define TLV_ti MAKE_TLV ('t','i')
-#define TLV_ly MAKE_TLV ('l','y')
-#define TLV_vo MAKE_TLV ('v','o')
-#define TLV_mx MAKE_TLV ('m','x')
-#define TLV_tr MAKE_TLV ('t','r')
-#define TLV_tw MAKE_TLV ('t','w')
-#define TLV_th MAKE_TLV ('t','h')
-#define TLV_la MAKE_TLV ('l','a')
-#define TLV_rt MAKE_TLV ('r','t')
-#define TLV_gm MAKE_TLV ('g','m')
-#define TLV_oc MAKE_TLV ('o','c')
-#define TLV_cr MAKE_TLV ('c','r')
-#define TLV_du MAKE_TLV ('d','u')
-#define TLV_po MAKE_TLV ('p','o')
-
-#define QT_UINT32(a) (GST_READ_UINT32_BE(a))
-#define QT_UINT24(a) (GST_READ_UINT32_BE(a) >> 8)
-#define QT_UINT16(a) (GST_READ_UINT16_BE(a))
-#define QT_UINT8(a) (GST_READ_UINT8(a))
-#define QT_FP32(a) ((GST_READ_UINT32_BE(a))/65536.0)
-#define QT_FP16(a) ((GST_READ_UINT16_BE(a))/256.0)
-#define QT_FOURCC(a) (GST_READ_UINT32_LE(a))
-#define QT_UINT64(a) ((((guint64)QT_UINT32(a))<<32)|QT_UINT32(((guint8 *)a)+4))
-
-#define FOURCC_avc1 GST_MAKE_FOURCC('a','v','c','1')
-#define FOURCC_avcC GST_MAKE_FOURCC('a','v','c','C')
-
-GST_DEBUG_CATEGORY_STATIC (rtpxqtdepay_debug);
-#define GST_CAT_DEFAULT (rtpxqtdepay_debug)
-
-/* elementfactory information */
-static const GstElementDetails gst_rtp_xqtdepay_details =
-GST_ELEMENT_DETAILS ("RTP packet depayloader",
- "Codec/Depayloader/Network",
- "Extracts Quicktime audio/video from RTP packets",
- "Wim Taymans <wim@fluendo.com>");
-
-/* RtpXQTDepay signals and args */
-enum
-{
- /* FILL ME */
- LAST_SIGNAL
-};
-
-enum
-{
- ARG_0,
-};
-
-static GstStaticPadTemplate gst_rtp_xqt_depay_src_template =
-GST_STATIC_PAD_TEMPLATE ("src",
- GST_PAD_SRC,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS_ANY);
-
-static GstStaticPadTemplate gst_rtp_xqt_depay_sink_template =
-GST_STATIC_PAD_TEMPLATE ("sink",
- GST_PAD_SINK,
- GST_PAD_ALWAYS,
- GST_STATIC_CAPS ("application/x-rtp, "
- "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
- "media = (string) { \"audio\", \"video\" }, clock-rate = (int) [1, MAX], "
- "encoding-name = (string) { \"X-QT\", \"X-QUICKTIME\" }")
- );
-
-GST_BOILERPLATE (GstRtpXQTDepay, gst_rtp_xqt_depay, GstBaseRTPDepayload,
- GST_TYPE_BASE_RTP_DEPAYLOAD);
-
-static void gst_rtp_xqt_depay_finalize (GObject * object);
-
-static gboolean gst_rtp_xqt_depay_setcaps (GstBaseRTPDepayload * depayload,
- GstCaps * caps);
-static GstBuffer *gst_rtp_xqt_depay_process (GstBaseRTPDepayload * depayload,
- GstBuffer * buf);
-
-static GstStateChangeReturn gst_rtp_xqt_depay_change_state (GstElement *
- element, GstStateChange transition);
-
-static void
-gst_rtp_xqt_depay_base_init (gpointer klass)
-{
- GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
-
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_rtp_xqt_depay_src_template));
- gst_element_class_add_pad_template (element_class,
- gst_static_pad_template_get (&gst_rtp_xqt_depay_sink_template));
-
- gst_element_class_set_details (element_class, &gst_rtp_xqtdepay_details);
-}
-
-static void
-gst_rtp_xqt_depay_class_init (GstRtpXQTDepayClass * klass)
-{
- GObjectClass *gobject_class;
- GstElementClass *gstelement_class;
- GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
-
- gobject_class = (GObjectClass *) klass;
- gstelement_class = (GstElementClass *) klass;
- gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
-
- parent_class = g_type_class_peek_parent (klass);
-
- gobject_class->finalize = gst_rtp_xqt_depay_finalize;
-
- gstelement_class->change_state = gst_rtp_xqt_depay_change_state;
-
- gstbasertpdepayload_class->set_caps = gst_rtp_xqt_depay_setcaps;
- gstbasertpdepayload_class->process = gst_rtp_xqt_depay_process;
-
- GST_DEBUG_CATEGORY_INIT (rtpxqtdepay_debug, "rtpxqtdepay", 0,
- "QT Media RTP Depayloader");
-}
-
-static void
-gst_rtp_xqt_depay_init (GstRtpXQTDepay * rtpxqtdepay,
- GstRtpXQTDepayClass * klass)
-{
- rtpxqtdepay->adapter = gst_adapter_new ();
-}
-
-static void
-gst_rtp_xqt_depay_finalize (GObject * object)
-{
- GstRtpXQTDepay *rtpxqtdepay;
-
- rtpxqtdepay = GST_RTP_XQT_DEPAY (object);
-
- g_object_unref (rtpxqtdepay->adapter);
- rtpxqtdepay->adapter = NULL;
-
- G_OBJECT_CLASS (parent_class)->finalize (object);
-}
-
-static gboolean
-gst_rtp_quicktime_parse_sd (GstRtpXQTDepay * rtpxqtdepay, guint8 * data,
- guint data_len)
-{
- gint len;
- guint32 fourcc;
-
- if (data_len < 8)
- goto too_short;
-
- len = (data[0] << 24) | (data[1] << 16) | (data[2] << 8) | data[3];
- if (len > data_len)
- goto too_short;
-
- fourcc = QT_FOURCC (data + 4);
-
- GST_DEBUG_OBJECT (rtpxqtdepay, "parsing %" GST_FOURCC_FORMAT,
- GST_FOURCC_ARGS (fourcc));
-
- switch (fourcc) {
- case FOURCC_avc1:
- {
- guint32 chlen;
-
- if (len < 0x56)
- goto too_short;
- len -= 0x56;
- data += 0x56;
-
- /* find avcC */
- while (len >= 8) {
- chlen = QT_UINT32 (data);
- fourcc = QT_FOURCC (data + 4);
- if (fourcc == FOURCC_avcC) {
- GstBuffer *buf;
- gint size;
- GstCaps *caps;
-
- GST_DEBUG_OBJECT (rtpxqtdepay, "found avcC codec_data in sd, %u",
- chlen);
-
- /* parse, if found */
- if (chlen < len)
- size = chlen - 8;
- else
- size = len - 8;
-
- buf = gst_buffer_new_and_alloc (size);
- memcpy (GST_BUFFER_DATA (buf), data + 8, size);
- caps = gst_caps_new_simple ("video/x-h264",
- "codec_data", GST_TYPE_BUFFER, buf, NULL);
- gst_buffer_unref (buf);
- gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD (rtpxqtdepay)->srcpad, caps);
- gst_caps_unref (caps);
- break;
- }
- len -= chlen;
- data += chlen;
- }
- break;
- }
- default:
- break;
- }
- return TRUE;
-
- /* ERRORS */
-too_short:
- {
- return FALSE;
- }
-}
-
-static gboolean
-gst_rtp_xqt_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
-{
- GstStructure *structure;
- gint clock_rate = 90000; /* default */
-
- structure = gst_caps_get_structure (caps, 0);
-
- gst_structure_get_int (structure, "clock-rate", &clock_rate);
- depayload->clock_rate = clock_rate;
-
- return TRUE;
-}
-
-static GstBuffer *
-gst_rtp_xqt_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf)
-{
- GstRtpXQTDepay *rtpxqtdepay;
- GstBuffer *outbuf;
- gboolean m;
-
- rtpxqtdepay = GST_RTP_XQT_DEPAY (depayload);
-
- if (!gst_rtp_buffer_validate (buf))
- goto bad_packet;
-
- if (GST_BUFFER_IS_DISCONT (buf)) {
- /* discont, clear adapter and try to find a new packet start */
- gst_adapter_clear (rtpxqtdepay->adapter);
- rtpxqtdepay->need_resync = TRUE;
- GST_DEBUG_OBJECT (rtpxqtdepay, "we need resync");
- }
-
- m = gst_rtp_buffer_get_marker (buf);
- GST_LOG_OBJECT (rtpxqtdepay, "marker: %d", m);
-
- {
- gint payload_len;
- guint avail;
- guint8 *payload;
- guint32 timestamp;
- guint8 ver, pck;
- gboolean s, q, l, d;
-
- payload_len = gst_rtp_buffer_get_payload_len (buf);
- payload = gst_rtp_buffer_get_payload (buf);
-
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | VER |PCK|S|Q|L| RES |D| QuickTime Payload ID |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- if (payload_len <= 4)
- goto wrong_length;
-
- ver = (payload[0] & 0xf0) >> 4;
- if (ver > 1)
- goto wrong_version;
-
- pck = (payload[0] & 0x0c) >> 2;
- if (pck == 0)
- goto pck_reserved;
-
- s = (payload[0] & 0x02) != 0; /* contains sync sample */
- q = (payload[0] & 0x01) != 0; /* has payload description */
- l = (payload[1] & 0x80) != 0; /* has packet specific information description */
- d = (payload[2] & 0x80) != 0; /* don't cache info for payload id */
- /* id used for caching info */
- rtpxqtdepay->current_id = ((payload[2] & 0x7f) << 8) | payload[3];
-
- GST_LOG_OBJECT (rtpxqtdepay,
- "VER: %d, PCK: %d, S: %d, Q: %d, L: %d, D: %d, ID: %d", ver, pck, s, q,
- l, d, rtpxqtdepay->current_id);
-
- if (rtpxqtdepay->need_resync) {
- /* we need to find the boundary of a new packet after a DISCONT */
- if (pck != 3 || q) {
- /* non-fragmented packet or payload description present, packet starts
- * here. */
- rtpxqtdepay->need_resync = FALSE;
- } else {
- /* fragmented packet without description */
- if (m) {
- /* marker bit set, next packet is start of new one */
- rtpxqtdepay->need_resync = FALSE;
- }
- goto need_resync;
- }
- }
-
- payload += 4;
- payload_len -= 4;
-
- if (q) {
- gboolean k, f, a, z;
- guint pdlen, pdpadded;
- gint padding;
- guint32 media_type, timescale;
-
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |K|F|A|Z| RES | QuickTime Payload Desc Length |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . QuickTime Payload Desc Data ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- if (payload_len <= 4)
- goto wrong_length;
-
- k = (payload[0] & 0x80) != 0; /* keyframe */
- f = (payload[0] & 0x40) != 0; /* sparse */
- a = (payload[0] & 0x20) != 0; /* start of payload */
- z = (payload[0] & 0x10) != 0; /* end of payload */
- pdlen = (payload[2] << 8) | payload[3];
-
- if (pdlen < 12)
- goto wrong_length;
-
- /* calc padding */
- pdpadded = pdlen + 3;
- pdpadded -= pdpadded % 4;
- if (payload_len < pdpadded)
- goto wrong_length;
-
- padding = pdpadded - pdlen;
- GST_LOG_OBJECT (rtpxqtdepay,
- "K: %d, F: %d, A: %d, Z: %d, len: %d, padding %d", k, f, a, z, pdlen,
- padding);
-
- payload += 4;
- payload_len -= 4;
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | QuickTime Media Type |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Timescale |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . QuickTime TLVs ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- media_type =
- (payload[0] << 24) | (payload[1] << 16) | (payload[2] << 8) |
- payload[3];
- timescale =
- (payload[4] << 24) | (payload[5] << 16) | (payload[6] << 8) |
- payload[7];
-
- GST_LOG_OBJECT (rtpxqtdepay, "media_type: %c%c%c%c, timescale %u",
- payload[0], payload[1], payload[2], payload[3], timescale);
-
- payload += 8;
- payload_len -= 8;
- pdlen -= 12;
-
- /* parse TLV (type-length-value triplets */
- while (pdlen > 3) {
- guint16 tlv_len, tlv_type;
-
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | QuickTime TLV Length | QuickTime TLV Type |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . QuickTime TLV Value ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- tlv_len = (payload[0] << 8) | payload[1];
- tlv_type = (payload[2] << 8) | payload[3];
- pdlen -= 4;
- if (tlv_len > pdlen)
- goto wrong_length;
-
- GST_LOG_OBJECT (rtpxqtdepay, "TLV '%c%c', len %d", payload[2],
- payload[3], tlv_len);
-
- payload += 4;
- payload_len -= 4;
-
- switch (tlv_type) {
- case TLV_sd:
- /* Session description */
- if (!gst_rtp_quicktime_parse_sd (rtpxqtdepay, payload, tlv_len))
- goto unknown_format;
- rtpxqtdepay->have_sd = TRUE;
- break;
- case TLV_qt:
- case TLV_ti:
- case TLV_ly:
- case TLV_vo:
- case TLV_mx:
- case TLV_tr:
- case TLV_tw:
- case TLV_th:
- case TLV_la:
- case TLV_rt:
- case TLV_gm:
- case TLV_oc:
- case TLV_cr:
- case TLV_du:
- case TLV_po:
- default:
- break;
- }
-
- pdlen -= tlv_len;
- payload += tlv_len;
- payload_len -= tlv_len;
- }
- payload += padding;
- payload_len -= padding;
- }
-
- if (l) {
- guint ssilen, ssipadded;
- gint padding;
-
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | RES | Sample-Specific Info Length |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . QuickTime TLVs ...
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- if (payload_len <= 4)
- goto wrong_length;
-
- ssilen = (payload[2] << 8) | payload[3];
- if (ssilen < 4)
- goto wrong_length;
-
- /* calc padding */
- ssipadded = ssilen + 3;
- ssipadded -= ssipadded % 4;
- if (payload_len < ssipadded)
- goto wrong_length;
-
- padding = ssipadded - ssilen;
- GST_LOG_OBJECT (rtpxqtdepay, "len: %d, padding %d", ssilen, padding);
-
- payload += 4;
- payload_len -= 4;
- ssilen -= 4;
-
- /* parse TLV (type-length-value triplets */
- while (ssilen > 3) {
- guint16 tlv_len, tlv_type;
-
- /* 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | QuickTime TLV Length | QuickTime TLV Type |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . QuickTime TLV Value ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- tlv_len = (payload[0] << 8) | payload[1];
- tlv_type = (payload[2] << 8) | payload[3];
- ssilen -= 4;
- if (tlv_len > ssilen)
- goto wrong_length;
-
- GST_LOG_OBJECT (rtpxqtdepay, "TLV '%c%c', len %d", payload[2],
- payload[3], tlv_len);
-
- payload += 4;
- payload_len -= 4;
-
- switch (tlv_type) {
- case TLV_sd:
- case TLV_qt:
- case TLV_ti:
- case TLV_ly:
- case TLV_vo:
- case TLV_mx:
- case TLV_tr:
- case TLV_tw:
- case TLV_th:
- case TLV_la:
- case TLV_rt:
- case TLV_gm:
- case TLV_oc:
- case TLV_cr:
- case TLV_du:
- case TLV_po:
- default:
- break;
- }
-
- ssilen -= tlv_len;
- payload += tlv_len;
- payload_len -= tlv_len;
- }
- payload += padding;
- payload_len -= padding;
- }
-
- timestamp = gst_rtp_buffer_get_timestamp (buf);
- rtpxqtdepay->previous_id = rtpxqtdepay->current_id;
-
- switch (pck) {
- case 1:
- {
- /* multiple samples per packet. */
- outbuf = gst_buffer_new_and_alloc (payload_len);
- memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
- return outbuf;
- }
- case 2:
- {
- guint slen, timestamp;
-
- /* multiple samples per packet.
- * 1 2 3
- * 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |S| Reserved | Sample Length |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Sample Timestamp |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . Sample Data ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * |S| Reserved | Sample Length |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * | Sample Timestamp |
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . Sample Data ... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- * . ...... .
- * +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
- */
- while (payload_len > 8) {
- s = (payload[0] & 0x80) != 0; /* contains sync sample */
- slen = (payload[2] << 8) | payload[3];
- timestamp =
- (payload[4] << 24) | (payload[5] << 16) | (payload[6] << 8) |
- payload[7];
-
- payload += 8;
- payload_len -= 8;
-
- if (slen > payload_len)
- slen = payload_len;
-
- outbuf = gst_buffer_new_and_alloc (slen);
- memcpy (GST_BUFFER_DATA (outbuf), payload, slen);
- if (!s)
- GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DELTA_UNIT);
-
- gst_base_rtp_depayload_push (depayload, outbuf);
-
- /* aligned on 32 bit boundary */
- slen = GST_ROUND_UP_4 (slen);
-
- payload += slen;
- payload_len -= slen;
- }
- break;
- }
- case 3:
- {
- /* one sample per packet, use adapter to combine based on marker bit. */
- outbuf = gst_buffer_new_and_alloc (payload_len);
- memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len);
-
- gst_adapter_push (rtpxqtdepay->adapter, outbuf);
-
- if (!m)
- goto done;
-
- avail = gst_adapter_available (rtpxqtdepay->adapter);
- outbuf = gst_adapter_take_buffer (rtpxqtdepay->adapter, avail);
-
- GST_DEBUG_OBJECT (rtpxqtdepay,
- "gst_rtp_xqt_depay_chain: pushing buffer of size %u", avail);
-
- return outbuf;
- }
- }
- }
-
-done:
- return NULL;
-
-bad_packet:
- {
- GST_ELEMENT_WARNING (rtpxqtdepay, STREAM, DECODE,
- ("Packet did not validate."), (NULL));
- return NULL;
- }
-need_resync:
- {
- GST_DEBUG_OBJECT (rtpxqtdepay, "waiting for marker");
- return NULL;
- }
-wrong_version:
- {
- GST_ELEMENT_WARNING (rtpxqtdepay, STREAM, DECODE,
- ("Unknown payload version."), (NULL));
- return NULL;
- }
-pck_reserved:
- {
- GST_ELEMENT_WARNING (rtpxqtdepay, STREAM, DECODE,
- ("PCK reserved 0."), (NULL));
- return NULL;
- }
-wrong_length:
- {
- GST_ELEMENT_WARNING (rtpxqtdepay, STREAM, DECODE,
- ("Wrong payload length."), (NULL));
- return NULL;
- }
-unknown_format:
- {
- GST_ELEMENT_WARNING (rtpxqtdepay, STREAM, DECODE,
- ("Unknown payload format."), (NULL));
- return NULL;
- }
-}
-
-static GstStateChangeReturn
-gst_rtp_xqt_depay_change_state (GstElement * element, GstStateChange transition)
-{
- GstRtpXQTDepay *rtpxqtdepay;
- GstStateChangeReturn ret;
-
- rtpxqtdepay = GST_RTP_XQT_DEPAY (element);
-
- switch (transition) {
- case GST_STATE_CHANGE_READY_TO_PAUSED:
- gst_adapter_clear (rtpxqtdepay->adapter);
- rtpxqtdepay->previous_id = -1;
- rtpxqtdepay->current_id = -1;
- rtpxqtdepay->need_resync = TRUE;
- rtpxqtdepay->have_sd = FALSE;
- break;
- default:
- break;
- }
-
- ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
-
- switch (transition) {
- case GST_STATE_CHANGE_PAUSED_TO_READY:
- gst_adapter_clear (rtpxqtdepay->adapter);
- default:
- break;
- }
- return ret;
-}
-
-gboolean
-gst_rtp_xqt_depay_plugin_init (GstPlugin * plugin)
-{
- return gst_element_register (plugin, "rtpxqtdepay",
- GST_RANK_MARGINAL, GST_TYPE_RTP_XQT_DEPAY);
-}