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gst/rtp/: Added simple AC3 depayloader (RFC 4184).
Original commit message from CVS: * gst/rtp/Makefile.am: * gst/rtp/gstrtp.c: (plugin_init): * gst/rtp/gstrtpac3depay.c: (gst_rtp_ac3_depay_base_init), (gst_rtp_ac3_depay_class_init), (gst_rtp_ac3_depay_init), (gst_rtp_ac3_depay_setcaps), (gst_rtp_ac3_depay_process), (gst_rtp_ac3_depay_set_property), (gst_rtp_ac3_depay_get_property), (gst_rtp_ac3_depay_change_state), (gst_rtp_ac3_depay_plugin_init): * gst/rtp/gstrtpac3depay.h: Added simple AC3 depayloader (RFC 4184). * gst/rtp/gstrtpmp2tdepay.c: (gst_rtp_mp2t_depay_setcaps): Fix a leak.
This commit is contained in:
Wim Taymans
parent
54b10ebf2a
commit
f083178741
6 changed files with 403 additions and 6 deletions
15
ChangeLog
15
ChangeLog
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@ -1,3 +1,18 @@
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2007-01-24 Wim Taymans <wim@fluendo.com>
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* gst/rtp/Makefile.am:
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* gst/rtp/gstrtp.c: (plugin_init):
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* gst/rtp/gstrtpac3depay.c: (gst_rtp_ac3_depay_base_init),
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(gst_rtp_ac3_depay_class_init), (gst_rtp_ac3_depay_init),
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(gst_rtp_ac3_depay_setcaps), (gst_rtp_ac3_depay_process),
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(gst_rtp_ac3_depay_set_property), (gst_rtp_ac3_depay_get_property),
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(gst_rtp_ac3_depay_change_state), (gst_rtp_ac3_depay_plugin_init):
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* gst/rtp/gstrtpac3depay.h:
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Added simple AC3 depayloader (RFC 4184).
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* gst/rtp/gstrtpmp2tdepay.c: (gst_rtp_mp2t_depay_setcaps):
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Fix a leak.
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2007-01-24 Sebastian Dröge <slomo@circular-chaos.org>
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reviewed by: Stefan Kost <ensonic@users.sf.net>
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@ -3,6 +3,7 @@ plugin_LTLIBRARIES = libgstrtp.la
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libgstrtp_la_SOURCES = \
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gstrtp.c \
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gstrtpdepay.c \
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gstrtpac3depay.c \
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gstrtpilbcdepay.c \
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gstrtpilbcpay.c \
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gstrtpmpadepay.c \
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@ -32,7 +33,7 @@ libgstrtp_la_SOURCES = \
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gstrtptheoradepay.c \
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gstrtptheorapay.c \
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gstrtpvorbisdepay.c \
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gstrtpvorbispay.c
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gstrtpvorbispay.c
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#gstrtpL16pay.c gstrtpL16depay.c
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@ -51,6 +52,7 @@ libgstrtp_la_LDFLAGS = $(GST_PLUGIN_LDFLAGS)
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noinst_HEADERS = \
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gstrtpL16depay.h \
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gstrtpL16pay.h \
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gstrtpac3depay.h \
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gstrtpamrdepay.h \
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gstrtpamrpay.h \
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gstrtpilbcdepay.h \
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@ -22,6 +22,7 @@
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#endif
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#include "gstrtpdepay.h"
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#include "gstrtpac3depay.h"
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#include "gstrtpilbcdepay.h"
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#include "gstrtpilbcpay.h"
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#include "gstrtppcmupay.h"
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@ -59,6 +60,9 @@ plugin_init (GstPlugin * plugin)
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if (!gst_rtp_depay_plugin_init (plugin))
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return FALSE;
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if (!gst_rtp_ac3_depay_plugin_init (plugin))
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return FALSE;
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if (!gst_rtp_ilbc_pay_plugin_init (plugin))
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return FALSE;
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325
gst/rtp/gstrtpac3depay.c
Normal file
325
gst/rtp/gstrtpac3depay.c
Normal file
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@ -0,0 +1,325 @@
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/* GStreamer
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* Copyright (C) <2007> Wim Taymans <wim@fluendo.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gst/rtp/gstrtpbuffer.h>
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#include <string.h>
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#include "gstrtpac3depay.h"
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GST_DEBUG_CATEGORY_STATIC (rtpac3depay_debug);
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#define GST_CAT_DEFAULT (rtpac3depay_debug)
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/* elementfactory information */
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static const GstElementDetails gst_rtp_ac3depay_details =
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GST_ELEMENT_DETAILS ("RTP packet depayloader",
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"Codec/Depayloader/Network",
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"Extracts AC3 audio from RTP packets (RFC 4184)",
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"Wim Taymans <wim@fluendo.com>");
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/* RtpAC3Depay signals and args */
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enum
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{
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/* FILL ME */
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LAST_SIGNAL
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};
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enum
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{
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ARG_0,
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};
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static GstStaticPadTemplate gst_rtp_ac3_depay_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("audio/ac3")
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);
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static GstStaticPadTemplate gst_rtp_ac3_depay_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS ("application/x-rtp, "
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"media = (string) \"audio\", "
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"payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", "
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"clock-rate = (int) { 32000, 44100, 48000 }, "
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"encoding-name = (string) \"AC3\"")
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);
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GST_BOILERPLATE (GstRtpAC3Depay, gst_rtp_ac3_depay, GstBaseRTPDepayload,
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GST_TYPE_BASE_RTP_DEPAYLOAD);
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static gboolean gst_rtp_ac3_depay_setcaps (GstBaseRTPDepayload * depayload,
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GstCaps * caps);
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static GstBuffer *gst_rtp_ac3_depay_process (GstBaseRTPDepayload * depayload,
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GstBuffer * buf);
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static void gst_rtp_ac3_depay_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec);
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static void gst_rtp_ac3_depay_get_property (GObject * object, guint prop_id,
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GValue * value, GParamSpec * pspec);
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static GstStateChangeReturn gst_rtp_ac3_depay_change_state (GstElement *
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element, GstStateChange transition);
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static void
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gst_rtp_ac3_depay_base_init (gpointer klass)
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{
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GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_ac3_depay_src_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_ac3_depay_sink_template));
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gst_element_class_set_details (element_class, &gst_rtp_ac3depay_details);
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}
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static void
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gst_rtp_ac3_depay_class_init (GstRtpAC3DepayClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseRTPDepayloadClass *gstbasertpdepayload_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass;
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parent_class = g_type_class_peek_parent (klass);
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gobject_class->set_property = gst_rtp_ac3_depay_set_property;
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gobject_class->get_property = gst_rtp_ac3_depay_get_property;
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gstelement_class->change_state = gst_rtp_ac3_depay_change_state;
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gstbasertpdepayload_class->set_caps = gst_rtp_ac3_depay_setcaps;
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gstbasertpdepayload_class->process = gst_rtp_ac3_depay_process;
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GST_DEBUG_CATEGORY_INIT (rtpac3depay_debug, "rtpac3depay", 0,
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"MPEG Audio RTP Depayloader");
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}
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static void
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gst_rtp_ac3_depay_init (GstRtpAC3Depay * rtpac3depay,
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GstRtpAC3DepayClass * klass)
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{
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}
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static gboolean
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gst_rtp_ac3_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
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{
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GstStructure *structure;
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GstRtpAC3Depay *rtpac3depay;
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gint clock_rate = 90000; /* default */
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rtpac3depay = GST_RTP_AC3_DEPAY (depayload);
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structure = gst_caps_get_structure (caps, 0);
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gst_structure_get_int (structure, "clock-rate", &clock_rate);
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depayload->clock_rate = clock_rate;
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return TRUE;
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}
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struct frmsize_s
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{
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guint16 bit_rate;
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guint16 frm_size[3];
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};
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static const struct frmsize_s frmsizecod_tbl[] = {
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{32, {64, 69, 96}},
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{32, {64, 70, 96}},
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{40, {80, 87, 120}},
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{40, {80, 88, 120}},
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{48, {96, 104, 144}},
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{48, {96, 105, 144}},
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{56, {112, 121, 168}},
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{56, {112, 122, 168}},
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{64, {128, 139, 192}},
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{64, {128, 140, 192}},
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{80, {160, 174, 240}},
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{80, {160, 175, 240}},
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{96, {192, 208, 288}},
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{96, {192, 209, 288}},
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{112, {224, 243, 336}},
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{112, {224, 244, 336}},
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{128, {256, 278, 384}},
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{128, {256, 279, 384}},
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{160, {320, 348, 480}},
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{160, {320, 349, 480}},
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{192, {384, 417, 576}},
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{192, {384, 418, 576}},
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{224, {448, 487, 672}},
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{224, {448, 488, 672}},
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{256, {512, 557, 768}},
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{256, {512, 558, 768}},
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{320, {640, 696, 960}},
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{320, {640, 697, 960}},
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{384, {768, 835, 1152}},
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{384, {768, 836, 1152}},
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{448, {896, 975, 1344}},
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{448, {896, 976, 1344}},
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{512, {1024, 1114, 1536}},
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{512, {1024, 1115, 1536}},
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{576, {1152, 1253, 1728}},
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{576, {1152, 1254, 1728}},
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{640, {1280, 1393, 1920}},
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{640, {1280, 1394, 1920}}
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};
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static GstBuffer *
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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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rtpac3depay = GST_RTP_AC3_DEPAY (depayload);
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if (!gst_rtp_buffer_validate (buf))
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goto bad_packet;
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{
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gint payload_len;
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guint8 *payload;
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guint16 FT, NF;
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payload_len = gst_rtp_buffer_get_payload_len (buf);
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payload = gst_rtp_buffer_get_payload (buf);
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if (payload_len <= 2)
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goto empty_packet;
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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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payload_len -= 2;
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payload += 2;
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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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GST_DEBUG_OBJECT (rtpac3depay, "pushing buffer of size %d",
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GST_BUFFER_SIZE (outbuf));
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return outbuf;
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}
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return NULL;
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bad_packet:
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{
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GST_ELEMENT_WARNING (rtpac3depay, STREAM, DECODE,
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("Packet did not validate."), (NULL));
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return NULL;
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}
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#if 0
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bad_payload:
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{
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GST_ELEMENT_WARNING (rtpac3depay, STREAM, DECODE,
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("Unexpected payload type."), (NULL));
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return NULL;
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}
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#endif
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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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return NULL;
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}
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}
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static void
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gst_rtp_ac3_depay_set_property (GObject * object, guint prop_id,
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const GValue * value, GParamSpec * pspec)
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{
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GstRtpAC3Depay *rtpac3depay;
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rtpac3depay = GST_RTP_AC3_DEPAY (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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gst_rtp_ac3_depay_get_property (GObject * object, guint prop_id, GValue * value,
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GParamSpec * pspec)
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{
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GstRtpAC3Depay *rtpac3depay;
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rtpac3depay = GST_RTP_AC3_DEPAY (object);
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switch (prop_id) {
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static GstStateChangeReturn
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gst_rtp_ac3_depay_change_state (GstElement * element, GstStateChange transition)
|
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{
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GstRtpAC3Depay *rtpac3depay;
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GstStateChangeReturn ret;
|
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rtpac3depay = GST_RTP_AC3_DEPAY (element);
|
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|
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switch (transition) {
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case GST_STATE_CHANGE_NULL_TO_READY:
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break;
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default:
|
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break;
|
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}
|
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|
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ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
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|
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switch (transition) {
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case GST_STATE_CHANGE_READY_TO_NULL:
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break;
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default:
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break;
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}
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return ret;
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}
|
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|
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gboolean
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gst_rtp_ac3_depay_plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "rtpac3depay",
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GST_RANK_MARGINAL, GST_TYPE_RTP_AC3_DEPAY);
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}
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56
gst/rtp/gstrtpac3depay.h
Normal file
56
gst/rtp/gstrtpac3depay.h
Normal file
|
|
@ -0,0 +1,56 @@
|
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/* GStreamer
|
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* 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 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.
|
||||
*/
|
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|
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#ifndef __GST_RTP_AC3_DEPAY_H__
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#define __GST_RTP_AC3_DEPAY_H__
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|
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#include <gst/gst.h>
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#include <gst/rtp/gstbasertpdepayload.h>
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|
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G_BEGIN_DECLS
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#define GST_TYPE_RTP_AC3_DEPAY \
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(gst_rtp_ac3_depay_get_type())
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#define GST_RTP_AC3_DEPAY(obj) \
|
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_AC3_DEPAY,GstRtpAC3Depay))
|
||||
#define GST_RTP_AC3_DEPAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_AC3_DEPAY,GstRtpAC3DepayClass))
|
||||
#define GST_IS_RTP_AC3_DEPAY(obj) \
|
||||
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_AC3_DEPAY))
|
||||
#define GST_IS_RTP_AC3_DEPAY_CLASS(klass) \
|
||||
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_AC3_DEPAY))
|
||||
|
||||
typedef struct _GstRtpAC3Depay GstRtpAC3Depay;
|
||||
typedef struct _GstRtpAC3DepayClass GstRtpAC3DepayClass;
|
||||
|
||||
struct _GstRtpAC3Depay
|
||||
{
|
||||
GstBaseRTPDepayload depayload;
|
||||
};
|
||||
|
||||
struct _GstRtpAC3DepayClass
|
||||
{
|
||||
GstBaseRTPDepayloadClass parent_class;
|
||||
};
|
||||
|
||||
gboolean gst_rtp_ac3_depay_plugin_init (GstPlugin * plugin);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_RTP_AC3_DEPAY_H__ */
|
||||
|
|
@ -138,7 +138,6 @@ gst_rtp_mp2t_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
|
|||
|
||||
GstStructure *structure;
|
||||
GstRtpMP2TDepay *rtpmp2tdepay;
|
||||
GstCaps *srccaps;
|
||||
gint clock_rate = 90000; /* default */
|
||||
|
||||
rtpmp2tdepay = GST_RTP_MP2T_DEPAY (depayload);
|
||||
|
|
@ -151,10 +150,6 @@ gst_rtp_mp2t_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps)
|
|||
|
||||
depayload->clock_rate = clock_rate;
|
||||
|
||||
srccaps = gst_caps_new_simple ("video/mpegts",
|
||||
"systemstream", G_TYPE_BOOLEAN, TRUE,
|
||||
"packetsize", G_TYPE_INT, 188, NULL);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue