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gst/rtp/: Add MPEG2 video payloader
Original commit message from CVS: * gst/rtp/Makefile.am: * gst/rtp/gstrtp.c: * gst/rtp/gstrtpmpvpay.c: * gst/rtp/gstrtpmpvpay.h: Add MPEG2 video payloader
This commit is contained in:
Thijs Vermeir
parent
8cc6592938
commit
b03d3e0b87
6 changed files with 316 additions and 2 deletions
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@ -1,3 +1,11 @@
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2008-01-25 Thijs Vermeir <thijsvermeir@gmail.com>
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* gst/rtp/Makefile.am:
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* gst/rtp/gstrtp.c:
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* gst/rtp/gstrtpmpvpay.c:
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* gst/rtp/gstrtpmpvpay.h:
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Add MPEG2 video payloader
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2008-01-23 Sebastian Dröge <slomo@circular-chaos.org>
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* gst/level/gstlevel.c:
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2
common
2
common
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@ -1 +1 @@
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Subproject commit 662f544d56a6d6ef20b8ea5f56e975f9e139bc78
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Subproject commit 571dce3335f9be76978009b3842c050dbb900e6f
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@ -10,6 +10,7 @@ libgstrtp_la_SOURCES = \
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gstrtpmpadepay.c \
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gstrtpmpapay.c \
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gstrtpmpvdepay.c \
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gstrtpmpvpay.c \
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gstrtppcmadepay.c \
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gstrtppcmudepay.c \
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gstrtppcmupay.c \
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@ -72,7 +73,8 @@ noinst_HEADERS = \
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gstrtpgsmpay.h \
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gstrtpmpadepay.h \
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gstrtpmpapay.h \
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gstrtpmpvdepay.h \
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gstrtpmpvdepay.h \
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gstrtpmpvpay.h \
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gstrtph263pdepay.h \
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gstrtph263ppay.h \
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gstrtph263depay.h \
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@ -36,6 +36,7 @@
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#include "gstrtpmpapay.h"
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#include "gstrtpmpadepay.h"
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#include "gstrtpmpvdepay.h"
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#include "gstrtpmpvpay.h"
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#include "gstrtph263pdepay.h"
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#include "gstrtph263ppay.h"
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#include "gstrtph263depay.h"
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@ -108,6 +109,9 @@ plugin_init (GstPlugin * plugin)
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if (!gst_rtp_mpv_depay_plugin_init (plugin))
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return FALSE;
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if (!gst_rtp_mpv_pay_plugin_init (plugin))
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return FALSE;
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if (!gst_rtp_h263p_pay_plugin_init (plugin))
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return FALSE;
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238
gst/rtp/gstrtpmpvpay.c
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238
gst/rtp/gstrtpmpvpay.c
Normal file
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@ -0,0 +1,238 @@
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/* GStreamer
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* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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 <stdlib.h>
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#include <string.h>
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#include <gst/rtp/gstrtpbuffer.h>
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#include "gstrtpmpvpay.h"
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static const GstElementDetails gst_rtp_mpv_pay_details =
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GST_ELEMENT_DETAILS ("RTP MPEG2 ES video payloader",
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"Codec/Payloader/Network",
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"Payload-encodes MPEG2 ES into RTP packets (RFC 2250)",
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"Thijs Vermeir <thijsvermeir@gmail.com>");
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static GstStaticPadTemplate gst_rtp_mpv_pay_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 ("video/mpeg, "
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"mpegversion = (int) 2, systemstream = (boolean) FALSE")
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);
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static GstStaticPadTemplate gst_rtp_mpv_pay_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 ("application/x-rtp, "
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"media = (string) \"video\", "
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"payload = (int) " GST_RTP_PAYLOAD_MPV_STRING ", "
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"clock-rate = (int) 90000, " "encoding-name = (string) \"MPV\"")
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);
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static gboolean gst_rtp_mpv_pay_setcaps (GstBaseRTPPayload * payload,
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GstCaps * caps);
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static GstFlowReturn gst_rtp_mpv_pay_handle_buffer (GstBaseRTPPayload *
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payload, GstBuffer * buffer);
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static GstFlowReturn gst_rtp_mpv_pay_flush (GstRTPMPVPay * rtpmpvpay,
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GstClockTime timestamp, GstClockTime duration);
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static void gst_rtp_mpv_pay_finalize (GObject * object);
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GST_BOILERPLATE (GstRTPMPVPay, gst_rtp_mpv_pay, GstBaseRTPPayload,
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GST_TYPE_BASE_RTP_PAYLOAD);
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static void
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gst_rtp_mpv_pay_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_mpv_pay_sink_template));
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gst_element_class_add_pad_template (element_class,
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gst_static_pad_template_get (&gst_rtp_mpv_pay_src_template));
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gst_element_class_set_details (element_class, &gst_rtp_mpv_pay_details);
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}
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static void
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gst_rtp_mpv_pay_class_init (GstRTPMPVPayClass * klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseRTPPayloadClass *gstbasertppayload_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
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gobject_class->finalize = gst_rtp_mpv_pay_finalize;
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gstbasertppayload_class->set_caps = gst_rtp_mpv_pay_setcaps;
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gstbasertppayload_class->handle_buffer = gst_rtp_mpv_pay_handle_buffer;
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}
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static void
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gst_rtp_mpv_pay_init (GstRTPMPVPay * rtpmpvpay, GstRTPMPVPayClass * klass)
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{
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GST_BASE_RTP_PAYLOAD (rtpmpvpay)->clock_rate = 90000;
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GST_BASE_RTP_PAYLOAD_PT (rtpmpvpay) = GST_RTP_PAYLOAD_MPV;
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rtpmpvpay->adapter = gst_adapter_new ();
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}
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static void
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gst_rtp_mpv_pay_finalize (GObject * object)
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{
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GstRTPMPVPay *rtpmpvpay;
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rtpmpvpay = GST_RTP_MPV_PAY (object);
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g_object_unref (rtpmpvpay->adapter);
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rtpmpvpay->adapter = NULL;
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gst_rtp_mpv_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
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{
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const char *stname;
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GstStructure *structure;
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structure = gst_caps_get_structure (caps, 0);
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stname = gst_structure_get_name (structure);
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gst_basertppayload_set_options (payload, "video", FALSE, "MPV", 90000);
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gst_basertppayload_set_outcaps (payload, NULL);
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return TRUE;
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}
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static GstFlowReturn
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gst_rtp_mpv_pay_flush (GstRTPMPVPay * rtpmpvpay, GstClockTime timestamp,
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GstClockTime duration)
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{
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GstBuffer *outbuf;
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GstFlowReturn ret;
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guint avail;
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guint8 *payload;
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gint packet_size;
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gint payload_size;
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avail = gst_adapter_available (rtpmpvpay->adapter);
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packet_size = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
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/* check for the maximum size of the rtp buffer */
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if (packet_size > GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay)) {
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payload_size =
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GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay) -
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gst_rtp_buffer_calc_packet_len (4, 0, 0);
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} else {
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payload_size = avail;
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}
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outbuf = gst_rtp_buffer_new_allocate (4 + payload_size, 0, 0);
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/* enable MPEG Video-specific header
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*
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* 0 1 2 3
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* 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
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* | MBZ |T| TR | |N|S|B|E| P | | BFC | | FFC |
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* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
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* AN FBV FFV
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*/
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payload = gst_rtp_buffer_get_payload (outbuf);
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/* fill in the MPEG Video-specific header */
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memset (payload, 0x0, 4);
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/* copy stuff from adapter to payload */
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gst_adapter_copy (rtpmpvpay->adapter, payload + 4, 0, payload_size);
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GST_BUFFER_TIMESTAMP (outbuf) = rtpmpvpay->first_ts;
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GST_BUFFER_DURATION (outbuf) = rtpmpvpay->duration;
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GST_DEBUG_OBJECT (rtpmpvpay, "pushing buffer of size %d",
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GST_BUFFER_SIZE (outbuf));
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ret = gst_basertppayload_push (GST_BASE_RTP_PAYLOAD (rtpmpvpay), outbuf);
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gst_adapter_flush (rtpmpvpay->adapter, payload_size);
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/* update the timestamp and duration */
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rtpmpvpay->first_ts = timestamp;
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rtpmpvpay->duration = duration;
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/* check if there is enough data for another rtp buffer */
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avail = gst_adapter_available (rtpmpvpay->adapter);
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packet_size = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
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if (packet_size >= GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay) && ret == GST_FLOW_OK) {
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GST_DEBUG_OBJECT (rtpmpvpay, "Have enough data for another rtp packet");
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ret = gst_rtp_mpv_pay_flush (rtpmpvpay, timestamp, duration);
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}
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return ret;
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}
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static GstFlowReturn
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gst_rtp_mpv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
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GstBuffer * buffer)
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{
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GstRTPMPVPay *rtpmpvpay;
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guint size, avail, packet_len;
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guint8 *data;
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GstClockTime timestamp, duration;
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GstFlowReturn ret;
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rtpmpvpay = GST_RTP_MPV_PAY (basepayload);
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size = GST_BUFFER_SIZE (buffer);
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data = GST_BUFFER_DATA (buffer);
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timestamp = GST_BUFFER_TIMESTAMP (buffer);
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duration = GST_BUFFER_DURATION (buffer);
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gst_adapter_push (rtpmpvpay->adapter, buffer);
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avail = gst_adapter_available (rtpmpvpay->adapter);
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/* Initialize new RTP payload */
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if (avail == 0) {
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rtpmpvpay->first_ts = timestamp;
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rtpmpvpay->duration = duration;
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}
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/* get packet length of previous data and this new data,
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* payload length includes a 4 byte MPEG video-specific header */
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packet_len = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
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if (gst_basertppayload_is_filled (basepayload,
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packet_len, rtpmpvpay->duration + duration)) {
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ret = gst_rtp_mpv_pay_flush (rtpmpvpay, timestamp, duration);
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} else {
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if (GST_CLOCK_TIME_IS_VALID (duration))
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rtpmpvpay->duration += duration;
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ret = GST_FLOW_OK;
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}
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return ret;
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}
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gboolean
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gst_rtp_mpv_pay_plugin_init (GstPlugin * plugin)
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{
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return gst_element_register (plugin, "rtpmpvpay",
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GST_RANK_NONE, GST_TYPE_RTP_MPV_PAY);
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}
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62
gst/rtp/gstrtpmpvpay.h
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62
gst/rtp/gstrtpmpvpay.h
Normal file
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@ -0,0 +1,62 @@
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/* GStreamer
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* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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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#ifndef __GST_RTP_MPV_PAY_H__
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#define __GST_RTP_MPV_PAY_H__
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#include <gst/gst.h>
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#include <gst/rtp/gstbasertppayload.h>
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#include <gst/base/gstadapter.h>
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G_BEGIN_DECLS
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typedef struct _GstRTPMPVPay GstRTPMPVPay;
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typedef struct _GstRTPMPVPayClass GstRTPMPVPayClass;
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#define GST_TYPE_RTP_MPV_PAY \
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(gst_rtp_mpv_pay_get_type())
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#define GST_RTP_MPV_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MPV_PAY,GstRTPMPVPay))
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#define GST_RTP_MPV_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MPV_PAY,GstRTPMPVPayClass))
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#define GST_IS_RTP_MPV_PAY(obj) \
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(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MPV_PAY))
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#define GST_IS_RTP_MPV_PAY_CLASS(klass) \
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(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MPV_PAY))
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struct _GstRTPMPVPay
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{
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GstBaseRTPPayload payload;
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GstAdapter *adapter;
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GstClockTime first_ts;
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GstClockTime duration;
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};
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struct _GstRTPMPVPayClass
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{
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GstBaseRTPPayloadClass parent_class;
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};
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gboolean gst_rtp_mpv_pay_plugin_init (GstPlugin * plugin);
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G_END_DECLS
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#endif /* __GST_RTP_MPV_PAY_H__ */
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