mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-09 05:38:58 +00:00
encoding name is required in the caps and is a better fit for autoplugging than the pt value. Hardware manufacturers have a bad habit of skimming through RFCs and in this case; use unassigned numbers for encoders instead of dynamic numbers. In essence, this patch will add support for a lot of Bosch hardware encoders without breaking autoplugging. Fixes https://bugzilla.gnome.org/show_bug.cgi?id=639292
226 lines
6.5 KiB
C
226 lines
6.5 KiB
C
/* GStreamer
|
|
* Copyright (C) <2005> Wim Taymans <wim.taymans@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., 51 Franklin St, Fifth Floor,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifdef HAVE_CONFIG_H
|
|
# include "config.h"
|
|
#endif
|
|
|
|
#include <gst/rtp/gstrtpbuffer.h>
|
|
|
|
#include <string.h>
|
|
#include "gstrtpmp4vdepay.h"
|
|
|
|
GST_DEBUG_CATEGORY_STATIC (rtpmp4vdepay_debug);
|
|
#define GST_CAT_DEFAULT (rtpmp4vdepay_debug)
|
|
|
|
static GstStaticPadTemplate gst_rtp_mp4v_depay_src_template =
|
|
GST_STATIC_PAD_TEMPLATE ("src",
|
|
GST_PAD_SRC,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("video/mpeg,"
|
|
"mpegversion=(int) 4," "systemstream=(boolean)false")
|
|
);
|
|
|
|
static GstStaticPadTemplate gst_rtp_mp4v_depay_sink_template =
|
|
GST_STATIC_PAD_TEMPLATE ("sink",
|
|
GST_PAD_SINK,
|
|
GST_PAD_ALWAYS,
|
|
GST_STATIC_CAPS ("application/x-rtp, "
|
|
"media = (string) \"video\", "
|
|
"clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"MP4V-ES\""
|
|
/* All optional parameters
|
|
*
|
|
* "profile-level-id=[1,MAX]"
|
|
* "config="
|
|
*/
|
|
)
|
|
);
|
|
|
|
#define gst_rtp_mp4v_depay_parent_class parent_class
|
|
G_DEFINE_TYPE (GstRtpMP4VDepay, gst_rtp_mp4v_depay,
|
|
GST_TYPE_RTP_BASE_DEPAYLOAD);
|
|
|
|
static void gst_rtp_mp4v_depay_finalize (GObject * object);
|
|
|
|
static gboolean gst_rtp_mp4v_depay_setcaps (GstRTPBaseDepayload * depayload,
|
|
GstCaps * caps);
|
|
static GstBuffer *gst_rtp_mp4v_depay_process (GstRTPBaseDepayload * depayload,
|
|
GstBuffer * buf);
|
|
|
|
static GstStateChangeReturn gst_rtp_mp4v_depay_change_state (GstElement *
|
|
element, GstStateChange transition);
|
|
|
|
static void
|
|
gst_rtp_mp4v_depay_class_init (GstRtpMP4VDepayClass * klass)
|
|
{
|
|
GObjectClass *gobject_class;
|
|
GstElementClass *gstelement_class;
|
|
GstRTPBaseDepayloadClass *gstrtpbasedepayload_class;
|
|
|
|
gobject_class = (GObjectClass *) klass;
|
|
gstelement_class = (GstElementClass *) klass;
|
|
gstrtpbasedepayload_class = (GstRTPBaseDepayloadClass *) klass;
|
|
|
|
gobject_class->finalize = gst_rtp_mp4v_depay_finalize;
|
|
|
|
gstelement_class->change_state = gst_rtp_mp4v_depay_change_state;
|
|
|
|
gstrtpbasedepayload_class->process = gst_rtp_mp4v_depay_process;
|
|
gstrtpbasedepayload_class->set_caps = gst_rtp_mp4v_depay_setcaps;
|
|
|
|
gst_element_class_add_pad_template (gstelement_class,
|
|
gst_static_pad_template_get (&gst_rtp_mp4v_depay_src_template));
|
|
gst_element_class_add_pad_template (gstelement_class,
|
|
gst_static_pad_template_get (&gst_rtp_mp4v_depay_sink_template));
|
|
|
|
gst_element_class_set_static_metadata (gstelement_class,
|
|
"RTP MPEG4 video depayloader", "Codec/Depayloader/Network/RTP",
|
|
"Extracts MPEG4 video from RTP packets (RFC 3016)",
|
|
"Wim Taymans <wim.taymans@gmail.com>");
|
|
|
|
GST_DEBUG_CATEGORY_INIT (rtpmp4vdepay_debug, "rtpmp4vdepay", 0,
|
|
"MPEG4 video RTP Depayloader");
|
|
}
|
|
|
|
static void
|
|
gst_rtp_mp4v_depay_init (GstRtpMP4VDepay * rtpmp4vdepay)
|
|
{
|
|
rtpmp4vdepay->adapter = gst_adapter_new ();
|
|
}
|
|
|
|
static void
|
|
gst_rtp_mp4v_depay_finalize (GObject * object)
|
|
{
|
|
GstRtpMP4VDepay *rtpmp4vdepay;
|
|
|
|
rtpmp4vdepay = GST_RTP_MP4V_DEPAY (object);
|
|
|
|
g_object_unref (rtpmp4vdepay->adapter);
|
|
rtpmp4vdepay->adapter = NULL;
|
|
|
|
G_OBJECT_CLASS (parent_class)->finalize (object);
|
|
}
|
|
|
|
static gboolean
|
|
gst_rtp_mp4v_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps)
|
|
{
|
|
GstStructure *structure;
|
|
GstCaps *srccaps;
|
|
const gchar *str;
|
|
gint clock_rate;
|
|
gboolean res;
|
|
|
|
structure = gst_caps_get_structure (caps, 0);
|
|
|
|
if (!gst_structure_get_int (structure, "clock-rate", &clock_rate))
|
|
clock_rate = 90000; /* default */
|
|
depayload->clock_rate = clock_rate;
|
|
|
|
srccaps = gst_caps_new_simple ("video/mpeg",
|
|
"mpegversion", G_TYPE_INT, 4,
|
|
"systemstream", G_TYPE_BOOLEAN, FALSE, NULL);
|
|
|
|
if ((str = gst_structure_get_string (structure, "config"))) {
|
|
GValue v = { 0 };
|
|
|
|
g_value_init (&v, GST_TYPE_BUFFER);
|
|
if (gst_value_deserialize (&v, str)) {
|
|
GstBuffer *buffer;
|
|
|
|
buffer = gst_value_get_buffer (&v);
|
|
gst_caps_set_simple (srccaps,
|
|
"codec_data", GST_TYPE_BUFFER, buffer, NULL);
|
|
/* caps takes ref */
|
|
g_value_unset (&v);
|
|
} else {
|
|
g_warning ("cannot convert config to buffer");
|
|
}
|
|
}
|
|
res = gst_pad_set_caps (depayload->srcpad, srccaps);
|
|
gst_caps_unref (srccaps);
|
|
|
|
return res;
|
|
}
|
|
|
|
static GstBuffer *
|
|
gst_rtp_mp4v_depay_process (GstRTPBaseDepayload * depayload, GstBuffer * buf)
|
|
{
|
|
GstRtpMP4VDepay *rtpmp4vdepay;
|
|
GstBuffer *pbuf, *outbuf = NULL;
|
|
GstRTPBuffer rtp = { NULL };
|
|
gboolean marker;
|
|
|
|
rtpmp4vdepay = GST_RTP_MP4V_DEPAY (depayload);
|
|
|
|
/* flush remaining data on discont */
|
|
if (GST_BUFFER_IS_DISCONT (buf))
|
|
gst_adapter_clear (rtpmp4vdepay->adapter);
|
|
|
|
gst_rtp_buffer_map (buf, GST_MAP_READ, &rtp);
|
|
pbuf = gst_rtp_buffer_get_payload_buffer (&rtp);
|
|
marker = gst_rtp_buffer_get_marker (&rtp);
|
|
gst_rtp_buffer_unmap (&rtp);
|
|
|
|
gst_adapter_push (rtpmp4vdepay->adapter, pbuf);
|
|
|
|
/* if this was the last packet of the VOP, create and push a buffer */
|
|
if (marker) {
|
|
guint avail;
|
|
|
|
avail = gst_adapter_available (rtpmp4vdepay->adapter);
|
|
outbuf = gst_adapter_take_buffer (rtpmp4vdepay->adapter, avail);
|
|
|
|
GST_DEBUG ("gst_rtp_mp4v_depay_chain: pushing buffer of size %"
|
|
G_GSIZE_FORMAT, gst_buffer_get_size (outbuf));
|
|
}
|
|
return outbuf;
|
|
}
|
|
|
|
static GstStateChangeReturn
|
|
gst_rtp_mp4v_depay_change_state (GstElement * element,
|
|
GstStateChange transition)
|
|
{
|
|
GstRtpMP4VDepay *rtpmp4vdepay;
|
|
GstStateChangeReturn ret;
|
|
|
|
rtpmp4vdepay = GST_RTP_MP4V_DEPAY (element);
|
|
|
|
switch (transition) {
|
|
case GST_STATE_CHANGE_READY_TO_PAUSED:
|
|
gst_adapter_clear (rtpmp4vdepay->adapter);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
|
|
|
|
switch (transition) {
|
|
default:
|
|
break;
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
gboolean
|
|
gst_rtp_mp4v_depay_plugin_init (GstPlugin * plugin)
|
|
{
|
|
return gst_element_register (plugin, "rtpmp4vdepay",
|
|
GST_RANK_SECONDARY, GST_TYPE_RTP_MP4V_DEPAY);
|
|
}
|