Commit b03d3e0b authored by Thijs Vermeir's avatar Thijs Vermeir
Browse files

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
parent 8cc65929
2008-01-25 Thijs Vermeir <thijsvermeir@gmail.com>
* gst/rtp/Makefile.am:
* gst/rtp/gstrtp.c:
* gst/rtp/gstrtpmpvpay.c:
* gst/rtp/gstrtpmpvpay.h:
Add MPEG2 video payloader
2008-01-23 Sebastian Dröge <slomo@circular-chaos.org>
 
* gst/level/gstlevel.c:
......
common @ 571dce33
Subproject commit 662f544d56a6d6ef20b8ea5f56e975f9e139bc78
Subproject commit 571dce3335f9be76978009b3842c050dbb900e6f
......@@ -10,6 +10,7 @@ libgstrtp_la_SOURCES = \
gstrtpmpadepay.c \
gstrtpmpapay.c \
gstrtpmpvdepay.c \
gstrtpmpvpay.c \
gstrtppcmadepay.c \
gstrtppcmudepay.c \
gstrtppcmupay.c \
......@@ -72,7 +73,8 @@ noinst_HEADERS = \
gstrtpgsmpay.h \
gstrtpmpadepay.h \
gstrtpmpapay.h \
gstrtpmpvdepay.h \
gstrtpmpvdepay.h \
gstrtpmpvpay.h \
gstrtph263pdepay.h \
gstrtph263ppay.h \
gstrtph263depay.h \
......
......@@ -36,6 +36,7 @@
#include "gstrtpmpapay.h"
#include "gstrtpmpadepay.h"
#include "gstrtpmpvdepay.h"
#include "gstrtpmpvpay.h"
#include "gstrtph263pdepay.h"
#include "gstrtph263ppay.h"
#include "gstrtph263depay.h"
......@@ -108,6 +109,9 @@ plugin_init (GstPlugin * plugin)
if (!gst_rtp_mpv_depay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_mpv_pay_plugin_init (plugin))
return FALSE;
if (!gst_rtp_h263p_pay_plugin_init (plugin))
return FALSE;
......
/* GStreamer
* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <string.h>
#include <gst/rtp/gstrtpbuffer.h>
#include "gstrtpmpvpay.h"
static const GstElementDetails gst_rtp_mpv_pay_details =
GST_ELEMENT_DETAILS ("RTP MPEG2 ES video payloader",
"Codec/Payloader/Network",
"Payload-encodes MPEG2 ES into RTP packets (RFC 2250)",
"Thijs Vermeir <thijsvermeir@gmail.com>");
static GstStaticPadTemplate gst_rtp_mpv_pay_sink_template =
GST_STATIC_PAD_TEMPLATE ("sink",
GST_PAD_SINK,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("video/mpeg, "
"mpegversion = (int) 2, systemstream = (boolean) FALSE")
);
static GstStaticPadTemplate gst_rtp_mpv_pay_src_template =
GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
GST_STATIC_CAPS ("application/x-rtp, "
"media = (string) \"video\", "
"payload = (int) " GST_RTP_PAYLOAD_MPV_STRING ", "
"clock-rate = (int) 90000, " "encoding-name = (string) \"MPV\"")
);
static gboolean gst_rtp_mpv_pay_setcaps (GstBaseRTPPayload * payload,
GstCaps * caps);
static GstFlowReturn gst_rtp_mpv_pay_handle_buffer (GstBaseRTPPayload *
payload, GstBuffer * buffer);
static GstFlowReturn gst_rtp_mpv_pay_flush (GstRTPMPVPay * rtpmpvpay,
GstClockTime timestamp, GstClockTime duration);
static void gst_rtp_mpv_pay_finalize (GObject * object);
GST_BOILERPLATE (GstRTPMPVPay, gst_rtp_mpv_pay, GstBaseRTPPayload,
GST_TYPE_BASE_RTP_PAYLOAD);
static void
gst_rtp_mpv_pay_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_mpv_pay_sink_template));
gst_element_class_add_pad_template (element_class,
gst_static_pad_template_get (&gst_rtp_mpv_pay_src_template));
gst_element_class_set_details (element_class, &gst_rtp_mpv_pay_details);
}
static void
gst_rtp_mpv_pay_class_init (GstRTPMPVPayClass * klass)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstBaseRTPPayloadClass *gstbasertppayload_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gstbasertppayload_class = (GstBaseRTPPayloadClass *) klass;
gobject_class->finalize = gst_rtp_mpv_pay_finalize;
gstbasertppayload_class->set_caps = gst_rtp_mpv_pay_setcaps;
gstbasertppayload_class->handle_buffer = gst_rtp_mpv_pay_handle_buffer;
}
static void
gst_rtp_mpv_pay_init (GstRTPMPVPay * rtpmpvpay, GstRTPMPVPayClass * klass)
{
GST_BASE_RTP_PAYLOAD (rtpmpvpay)->clock_rate = 90000;
GST_BASE_RTP_PAYLOAD_PT (rtpmpvpay) = GST_RTP_PAYLOAD_MPV;
rtpmpvpay->adapter = gst_adapter_new ();
}
static void
gst_rtp_mpv_pay_finalize (GObject * object)
{
GstRTPMPVPay *rtpmpvpay;
rtpmpvpay = GST_RTP_MPV_PAY (object);
g_object_unref (rtpmpvpay->adapter);
rtpmpvpay->adapter = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static gboolean
gst_rtp_mpv_pay_setcaps (GstBaseRTPPayload * payload, GstCaps * caps)
{
const char *stname;
GstStructure *structure;
structure = gst_caps_get_structure (caps, 0);
stname = gst_structure_get_name (structure);
gst_basertppayload_set_options (payload, "video", FALSE, "MPV", 90000);
gst_basertppayload_set_outcaps (payload, NULL);
return TRUE;
}
static GstFlowReturn
gst_rtp_mpv_pay_flush (GstRTPMPVPay * rtpmpvpay, GstClockTime timestamp,
GstClockTime duration)
{
GstBuffer *outbuf;
GstFlowReturn ret;
guint avail;
guint8 *payload;
gint packet_size;
gint payload_size;
avail = gst_adapter_available (rtpmpvpay->adapter);
packet_size = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
/* check for the maximum size of the rtp buffer */
if (packet_size > GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay)) {
payload_size =
GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay) -
gst_rtp_buffer_calc_packet_len (4, 0, 0);
} else {
payload_size = avail;
}
outbuf = gst_rtp_buffer_new_allocate (4 + payload_size, 0, 0);
/* enable MPEG Video-specific header
*
* 0 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
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* | MBZ |T| TR | |N|S|B|E| P | | BFC | | FFC |
* +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
* AN FBV FFV
*/
payload = gst_rtp_buffer_get_payload (outbuf);
/* fill in the MPEG Video-specific header */
memset (payload, 0x0, 4);
/* copy stuff from adapter to payload */
gst_adapter_copy (rtpmpvpay->adapter, payload + 4, 0, payload_size);
GST_BUFFER_TIMESTAMP (outbuf) = rtpmpvpay->first_ts;
GST_BUFFER_DURATION (outbuf) = rtpmpvpay->duration;
GST_DEBUG_OBJECT (rtpmpvpay, "pushing buffer of size %d",
GST_BUFFER_SIZE (outbuf));
ret = gst_basertppayload_push (GST_BASE_RTP_PAYLOAD (rtpmpvpay), outbuf);
gst_adapter_flush (rtpmpvpay->adapter, payload_size);
/* update the timestamp and duration */
rtpmpvpay->first_ts = timestamp;
rtpmpvpay->duration = duration;
/* check if there is enough data for another rtp buffer */
avail = gst_adapter_available (rtpmpvpay->adapter);
packet_size = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
if (packet_size >= GST_BASE_RTP_PAYLOAD_MTU (rtpmpvpay) && ret == GST_FLOW_OK) {
GST_DEBUG_OBJECT (rtpmpvpay, "Have enough data for another rtp packet");
ret = gst_rtp_mpv_pay_flush (rtpmpvpay, timestamp, duration);
}
return ret;
}
static GstFlowReturn
gst_rtp_mpv_pay_handle_buffer (GstBaseRTPPayload * basepayload,
GstBuffer * buffer)
{
GstRTPMPVPay *rtpmpvpay;
guint size, avail, packet_len;
guint8 *data;
GstClockTime timestamp, duration;
GstFlowReturn ret;
rtpmpvpay = GST_RTP_MPV_PAY (basepayload);
size = GST_BUFFER_SIZE (buffer);
data = GST_BUFFER_DATA (buffer);
timestamp = GST_BUFFER_TIMESTAMP (buffer);
duration = GST_BUFFER_DURATION (buffer);
gst_adapter_push (rtpmpvpay->adapter, buffer);
avail = gst_adapter_available (rtpmpvpay->adapter);
/* Initialize new RTP payload */
if (avail == 0) {
rtpmpvpay->first_ts = timestamp;
rtpmpvpay->duration = duration;
}
/* get packet length of previous data and this new data,
* payload length includes a 4 byte MPEG video-specific header */
packet_len = gst_rtp_buffer_calc_packet_len (4 + avail, 0, 0);
if (gst_basertppayload_is_filled (basepayload,
packet_len, rtpmpvpay->duration + duration)) {
ret = gst_rtp_mpv_pay_flush (rtpmpvpay, timestamp, duration);
} else {
if (GST_CLOCK_TIME_IS_VALID (duration))
rtpmpvpay->duration += duration;
ret = GST_FLOW_OK;
}
return ret;
}
gboolean
gst_rtp_mpv_pay_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtpmpvpay",
GST_RANK_NONE, GST_TYPE_RTP_MPV_PAY);
}
/* GStreamer
* Copyright (C) <2007> Thijs Vermeir <thijsvermeir@gmail.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.
*/
#ifndef __GST_RTP_MPV_PAY_H__
#define __GST_RTP_MPV_PAY_H__
#include <gst/gst.h>
#include <gst/rtp/gstbasertppayload.h>
#include <gst/base/gstadapter.h>
G_BEGIN_DECLS
typedef struct _GstRTPMPVPay GstRTPMPVPay;
typedef struct _GstRTPMPVPayClass GstRTPMPVPayClass;
#define GST_TYPE_RTP_MPV_PAY \
(gst_rtp_mpv_pay_get_type())
#define GST_RTP_MPV_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_MPV_PAY,GstRTPMPVPay))
#define GST_RTP_MPV_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_MPV_PAY,GstRTPMPVPayClass))
#define GST_IS_RTP_MPV_PAY(obj) \
(G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_MPV_PAY))
#define GST_IS_RTP_MPV_PAY_CLASS(klass) \
(G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_MPV_PAY))
struct _GstRTPMPVPay
{
GstBaseRTPPayload payload;
GstAdapter *adapter;
GstClockTime first_ts;
GstClockTime duration;
};
struct _GstRTPMPVPayClass
{
GstBaseRTPPayloadClass parent_class;
};
gboolean gst_rtp_mpv_pay_plugin_init (GstPlugin * plugin);
G_END_DECLS
#endif /* __GST_RTP_MPV_PAY_H__ */
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