diff options
Diffstat (limited to 'gst/rtp/gstrtph263pdec.c')
-rw-r--r-- | gst/rtp/gstrtph263pdec.c | 342 |
1 files changed, 0 insertions, 342 deletions
diff --git a/gst/rtp/gstrtph263pdec.c b/gst/rtp/gstrtph263pdec.c deleted file mode 100644 index 4a7467bd..00000000 --- a/gst/rtp/gstrtph263pdec.c +++ /dev/null @@ -1,342 +0,0 @@ -/* GStreamer - * Copyright (C) <2005> 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 - */ - -#ifdef HAVE_CONFIG_H -# include "config.h" -#endif - -#include <string.h> - -#include <gst/rtp/gstrtpbuffer.h> -#include "gstrtph263pdec.h" - -/* elementfactory information */ -static GstElementDetails gst_rtp_h263pdec_details = { - "RTP packet parser", - "Codec/Parser/Network", - "Extracts H263+ video from RTP packets (RFC 2429)", - "Wim Taymans <wim@fluendo.com>" -}; - -/* RtpH263PDec signals and args */ -enum -{ - /* FILL ME */ - LAST_SIGNAL -}; - -enum -{ - ARG_0, - ARG_FREQUENCY -}; - -static GstStaticPadTemplate gst_rtph263pdec_src_template = -GST_STATIC_PAD_TEMPLATE ("src", - GST_PAD_SRC, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("video/x-h263") - ); - -static GstStaticPadTemplate gst_rtph263pdec_sink_template = -GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS ("application/x-rtp, " - "media = (string) \"video\", " - "payload = (int) [ 96, 255 ], " - "clock-rate = (int) 90000, " "encoding-name = (string) \"H263-1998\"") - ); - - -static void gst_rtph263pdec_class_init (GstRtpH263PDecClass * klass); -static void gst_rtph263pdec_base_init (GstRtpH263PDecClass * klass); -static void gst_rtph263pdec_init (GstRtpH263PDec * rtph263pdec); -static void gst_rtph263pdec_finalize (GObject * object); - -static GstFlowReturn gst_rtph263pdec_chain (GstPad * pad, GstBuffer * buffer); - -static void gst_rtph263pdec_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec); -static void gst_rtph263pdec_get_property (GObject * object, guint prop_id, - GValue * value, GParamSpec * pspec); - -static GstStateChangeReturn gst_rtph263pdec_change_state (GstElement * - element, GstStateChange transition); - -static GstElementClass *parent_class = NULL; - -static GType -gst_rtph263pdec_get_type (void) -{ - static GType rtph263pdec_type = 0; - - if (!rtph263pdec_type) { - static const GTypeInfo rtph263pdec_info = { - sizeof (GstRtpH263PDecClass), - (GBaseInitFunc) gst_rtph263pdec_base_init, - NULL, - (GClassInitFunc) gst_rtph263pdec_class_init, - NULL, - NULL, - sizeof (GstRtpH263PDec), - 0, - (GInstanceInitFunc) gst_rtph263pdec_init, - }; - - rtph263pdec_type = - g_type_register_static (GST_TYPE_ELEMENT, "GstRtpH263PDec", - &rtph263pdec_info, 0); - } - return rtph263pdec_type; -} - -static void -gst_rtph263pdec_base_init (GstRtpH263PDecClass * klass) -{ - GstElementClass *element_class = GST_ELEMENT_CLASS (klass); - - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&gst_rtph263pdec_src_template)); - gst_element_class_add_pad_template (element_class, - gst_static_pad_template_get (&gst_rtph263pdec_sink_template)); - - gst_element_class_set_details (element_class, &gst_rtp_h263pdec_details); -} - -static void -gst_rtph263pdec_class_init (GstRtpH263PDecClass * klass) -{ - GObjectClass *gobject_class; - GstElementClass *gstelement_class; - - gobject_class = (GObjectClass *) klass; - gstelement_class = (GstElementClass *) klass; - - parent_class = g_type_class_ref (GST_TYPE_ELEMENT); - - gobject_class->finalize = gst_rtph263pdec_finalize; - - gobject_class->set_property = gst_rtph263pdec_set_property; - gobject_class->get_property = gst_rtph263pdec_get_property; - - gstelement_class->change_state = gst_rtph263pdec_change_state; -} - -static void -gst_rtph263pdec_init (GstRtpH263PDec * rtph263pdec) -{ - rtph263pdec->srcpad = - gst_pad_new_from_template (gst_static_pad_template_get - (&gst_rtph263pdec_src_template), "src"); - gst_element_add_pad (GST_ELEMENT (rtph263pdec), rtph263pdec->srcpad); - - rtph263pdec->sinkpad = - gst_pad_new_from_template (gst_static_pad_template_get - (&gst_rtph263pdec_sink_template), "sink"); - gst_pad_set_chain_function (rtph263pdec->sinkpad, gst_rtph263pdec_chain); - gst_element_add_pad (GST_ELEMENT (rtph263pdec), rtph263pdec->sinkpad); - - rtph263pdec->adapter = gst_adapter_new (); -} - -static void -gst_rtph263pdec_finalize (GObject * object) -{ - GstRtpH263PDec *rtph263pdec; - - rtph263pdec = GST_RTP_H263P_DEC (object); - - g_object_unref (rtph263pdec->adapter); - rtph263pdec->adapter = NULL; - - G_OBJECT_CLASS (parent_class)->finalize (object); -} - -static GstFlowReturn -gst_rtph263pdec_chain (GstPad * pad, GstBuffer * buf) -{ - GstRtpH263PDec *rtph263pdec; - GstBuffer *outbuf; - GstFlowReturn ret; - - /* GstRTPPayload pt; */ - - rtph263pdec = GST_RTP_H263P_DEC (GST_OBJECT_PARENT (pad)); - - if (!gst_rtpbuffer_validate (buf)) - goto bad_packet; - - /* - if ((pt = gst_rtpbuffer_get_payload_type (buf)) != 0) - goto bad_payload; - */ - - { - gint payload_len; - guint8 *payload; - gboolean P, V, M; - guint32 timestamp; - guint header_len; - guint8 PLEN; - - payload_len = gst_rtpbuffer_get_payload_len (buf); - payload = gst_rtpbuffer_get_payload (buf); - - header_len = 2; - - M = gst_rtpbuffer_get_marker (buf); - P = (payload[0] & 0x04) == 0x04; - V = (payload[0] & 0x02) == 0x02; - PLEN = ((payload[0] & 0x1) << 5) | (payload[1] >> 3); - - if (V) { - header_len++; - } - if (PLEN) { - header_len += PLEN; - } - - if (P) { - header_len -= 2; - payload[header_len] = 0; - payload[header_len + 1] = 0; - } - - /* strip off header */ - payload += header_len; - payload_len -= header_len; - - timestamp = gst_rtpbuffer_get_timestamp (buf); - - if (M) { - /* frame is completed: append to previous, push it out */ - guint avail; - guint8 *data; - - avail = gst_adapter_available (rtph263pdec->adapter); - - outbuf = gst_buffer_new_and_alloc (avail + payload_len); - - /* prepend previous data */ - if (avail > 0) { - data = (guint8 *) gst_adapter_peek (rtph263pdec->adapter, avail); - memcpy (GST_BUFFER_DATA (outbuf), data, avail); - gst_adapter_flush (rtph263pdec->adapter, avail); - } - memcpy (GST_BUFFER_DATA (outbuf) + avail, payload, payload_len); - - GST_BUFFER_TIMESTAMP (outbuf) = timestamp * GST_SECOND / 90000; - gst_buffer_set_caps (outbuf, - (GstCaps *) gst_pad_get_pad_template_caps (rtph263pdec->srcpad)); - - ret = gst_pad_push (rtph263pdec->srcpad, outbuf); - } else { - /* frame not completed: store in adapter */ - outbuf = gst_buffer_new_and_alloc (payload_len); - - memcpy (GST_BUFFER_DATA (outbuf), payload, payload_len); - - gst_adapter_push (rtph263pdec->adapter, outbuf); - - ret = GST_FLOW_OK; - } - - gst_buffer_unref (buf); - } - - return ret; - -bad_packet: - { - GST_DEBUG ("Packet does not validate"); - gst_buffer_unref (buf); - return GST_FLOW_ERROR; - } - /* - bad_payload: - { - GST_DEBUG ("Unexpected payload type %u", pt); - - gst_buffer_unref (buf); - return GST_FLOW_ERROR; - } - */ -} - -static void -gst_rtph263pdec_set_property (GObject * object, guint prop_id, - const GValue * value, GParamSpec * pspec) -{ - GstRtpH263PDec *rtph263pdec; - - rtph263pdec = GST_RTP_H263P_DEC (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static void -gst_rtph263pdec_get_property (GObject * object, guint prop_id, GValue * value, - GParamSpec * pspec) -{ - GstRtpH263PDec *rtph263pdec; - - rtph263pdec = GST_RTP_H263P_DEC (object); - - switch (prop_id) { - default: - G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec); - break; - } -} - -static GstStateChangeReturn -gst_rtph263pdec_change_state (GstElement * element, GstStateChange transition) -{ - GstRtpH263PDec *rtph263pdec; - GstStateChangeReturn ret; - - rtph263pdec = GST_RTP_H263P_DEC (element); - - switch (transition) { - case GST_STATE_CHANGE_NULL_TO_READY: - break; - case GST_STATE_CHANGE_READY_TO_PAUSED: - gst_adapter_clear (rtph263pdec->adapter); - break; - default: - break; - } - - ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_NULL: - break; - default: - break; - } - return ret; -} - -gboolean -gst_rtph263pdec_plugin_init (GstPlugin * plugin) -{ - return gst_element_register (plugin, "rtph263pdec", - GST_RANK_NONE, GST_TYPE_RTP_H263P_DEC); -} |