Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 1 | /* GStreamer |
| 2 | * Copyright (C) <2008> Wim Taymans <wim.taymans@gmail.com> |
| 3 | * |
| 4 | * This library is free software; you can redistribute it and/or |
| 5 | * modify it under the terms of the GNU Library General Public |
| 6 | * License as published by the Free Software Foundation; either |
| 7 | * version 2 of the License, or (at your option) any later version. |
| 8 | * |
| 9 | * This library is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | * Library General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU Library General Public |
| 15 | * License along with this library; if not, write to the |
Tim-Philipp Müller | 230cf41 | 2012-11-04 00:07:18 +0000 | [diff] [blame] | 16 | * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, |
| 17 | * Boston, MA 02110-1301, USA. |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 18 | */ |
| 19 | |
| 20 | #ifdef HAVE_CONFIG_H |
| 21 | # include "config.h" |
| 22 | #endif |
| 23 | |
| 24 | #include <gst/rtp/gstrtpbuffer.h> |
| 25 | |
| 26 | #include <string.h> |
| 27 | #include "gstrtpmp1sdepay.h" |
Sebastian Dröge | b1089fb | 2015-08-04 20:59:17 +0300 | [diff] [blame] | 28 | #include "gstrtputils.h" |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 29 | |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 30 | /* RtpMP1SDepay signals and args */ |
| 31 | enum |
| 32 | { |
| 33 | /* FILL ME */ |
| 34 | LAST_SIGNAL |
| 35 | }; |
| 36 | |
| 37 | enum |
| 38 | { |
| 39 | PROP_0, |
| 40 | PROP_LAST |
| 41 | }; |
| 42 | |
| 43 | static GstStaticPadTemplate gst_rtp_mp1s_depay_src_template = |
| 44 | GST_STATIC_PAD_TEMPLATE ("src", |
| 45 | GST_PAD_SRC, |
| 46 | GST_PAD_ALWAYS, |
| 47 | GST_STATIC_CAPS ("video/mpeg,systemstream=(boolean)true") |
| 48 | ); |
| 49 | |
| 50 | /* The spec says video/MP1S but I have seen streams with other/MP1S so we will |
| 51 | * allow them both */ |
| 52 | static GstStaticPadTemplate gst_rtp_mp1s_depay_sink_template = |
| 53 | GST_STATIC_PAD_TEMPLATE ("sink", |
| 54 | GST_PAD_SINK, |
| 55 | GST_PAD_ALWAYS, |
| 56 | GST_STATIC_CAPS ("application/x-rtp, " |
| 57 | "media = (string) \"other\", " |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 58 | "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"MP1S\";" |
| 59 | "application/x-rtp, " |
| 60 | "media = (string) \"video\", " |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 61 | "clock-rate = (int) [1, MAX ], " "encoding-name = (string) \"MP1S\"") |
| 62 | ); |
| 63 | |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 64 | G_DEFINE_TYPE (GstRtpMP1SDepay, gst_rtp_mp1s_depay, |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 65 | GST_TYPE_RTP_BASE_DEPAYLOAD); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 66 | |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 67 | static gboolean gst_rtp_mp1s_depay_setcaps (GstRTPBaseDepayload * depayload, |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 68 | GstCaps * caps); |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 69 | static GstBuffer *gst_rtp_mp1s_depay_process (GstRTPBaseDepayload * depayload, |
Tim-Philipp Müller | 6717c86 | 2015-07-12 14:27:15 +0100 | [diff] [blame] | 70 | GstRTPBuffer * rtp); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 71 | |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 72 | static void |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 73 | gst_rtp_mp1s_depay_class_init (GstRtpMP1SDepayClass * klass) |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 74 | { |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 75 | GstElementClass *gstelement_class; |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 76 | GstRTPBaseDepayloadClass *gstrtpbasedepayload_class; |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 77 | |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 78 | gstelement_class = (GstElementClass *) klass; |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 79 | gstrtpbasedepayload_class = (GstRTPBaseDepayloadClass *) klass; |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 80 | |
Tim-Philipp Müller | 6717c86 | 2015-07-12 14:27:15 +0100 | [diff] [blame] | 81 | gstrtpbasedepayload_class->process_rtp_packet = gst_rtp_mp1s_depay_process; |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 82 | gstrtpbasedepayload_class->set_caps = gst_rtp_mp1s_depay_setcaps; |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 83 | |
Vineeth TM | 1071309 | 2016-03-04 10:30:12 +0900 | [diff] [blame] | 84 | gst_element_class_add_static_pad_template (gstelement_class, |
| 85 | &gst_rtp_mp1s_depay_src_template); |
| 86 | gst_element_class_add_static_pad_template (gstelement_class, |
| 87 | &gst_rtp_mp1s_depay_sink_template); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 88 | |
Tim-Philipp Müller | e09ae57 | 2012-04-10 00:51:41 +0100 | [diff] [blame] | 89 | gst_element_class_set_static_metadata (gstelement_class, |
Wim Taymans | f4155f3 | 2010-12-21 16:58:47 +0100 | [diff] [blame] | 90 | "RTP MPEG1 System Stream depayloader", "Codec/Depayloader/Network/RTP", |
Benjamin Otte | cccfeaa | 2010-03-18 14:31:35 +0100 | [diff] [blame] | 91 | "Extracts MPEG1 System Streams from RTP packets (RFC 3555)", |
| 92 | "Wim Taymans <wim.taymans@gmail.com>"); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 93 | } |
| 94 | |
| 95 | static void |
Mark Nauwelaerts | eb82a50 | 2011-07-10 21:50:19 +0200 | [diff] [blame] | 96 | gst_rtp_mp1s_depay_init (GstRtpMP1SDepay * rtpmp1sdepay) |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 97 | { |
| 98 | } |
| 99 | |
| 100 | static gboolean |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 101 | gst_rtp_mp1s_depay_setcaps (GstRTPBaseDepayload * depayload, GstCaps * caps) |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 102 | { |
| 103 | GstCaps *srccaps; |
| 104 | GstStructure *structure; |
Wim Taymans | 2428a1c | 2008-10-27 11:03:53 +0000 | [diff] [blame] | 105 | gint clock_rate; |
| 106 | gboolean res; |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 107 | |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 108 | structure = gst_caps_get_structure (caps, 0); |
Wim Taymans | 2428a1c | 2008-10-27 11:03:53 +0000 | [diff] [blame] | 109 | if (!gst_structure_get_int (structure, "clock-rate", &clock_rate)) |
| 110 | clock_rate = 90000; /* default */ |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 111 | depayload->clock_rate = clock_rate; |
| 112 | |
| 113 | srccaps = gst_caps_new_simple ("video/mpeg", |
| 114 | "systemstream", G_TYPE_BOOLEAN, TRUE, NULL); |
Wim Taymans | 249d008 | 2011-11-11 12:25:01 +0100 | [diff] [blame] | 115 | res = gst_pad_set_caps (GST_RTP_BASE_DEPAYLOAD_SRCPAD (depayload), srccaps); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 116 | gst_caps_unref (srccaps); |
| 117 | |
Wim Taymans | 2428a1c | 2008-10-27 11:03:53 +0000 | [diff] [blame] | 118 | return res; |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | static GstBuffer * |
Tim-Philipp Müller | 6717c86 | 2015-07-12 14:27:15 +0100 | [diff] [blame] | 122 | gst_rtp_mp1s_depay_process (GstRTPBaseDepayload * depayload, GstRTPBuffer * rtp) |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 123 | { |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 124 | GstBuffer *outbuf; |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 125 | |
Tim-Philipp Müller | 6717c86 | 2015-07-12 14:27:15 +0100 | [diff] [blame] | 126 | outbuf = gst_rtp_buffer_get_payload_buffer (rtp); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 127 | |
Sebastian Dröge | b1089fb | 2015-08-04 20:59:17 +0300 | [diff] [blame] | 128 | if (outbuf) { |
Matej Knopp | 1e5dd9e | 2011-11-21 20:31:31 +0100 | [diff] [blame] | 129 | GST_DEBUG ("gst_rtp_mp1s_depay_chain: pushing buffer of size %" |
| 130 | G_GSIZE_FORMAT, gst_buffer_get_size (outbuf)); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 131 | |
Sebastian Dröge | b1089fb | 2015-08-04 20:59:17 +0300 | [diff] [blame] | 132 | gst_rtp_drop_meta (GST_ELEMENT_CAST (depayload), outbuf, 0); |
| 133 | } |
| 134 | |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 135 | return outbuf; |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 136 | } |
| 137 | |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 138 | gboolean |
| 139 | gst_rtp_mp1s_depay_plugin_init (GstPlugin * plugin) |
| 140 | { |
| 141 | return gst_element_register (plugin, "rtpmp1sdepay", |
Wim Taymans | f357e09 | 2010-12-21 16:49:28 +0100 | [diff] [blame] | 142 | GST_RANK_SECONDARY, GST_TYPE_RTP_MP1S_DEPAY); |
Wim Taymans | 8f0079c | 2008-08-05 13:54:18 +0000 | [diff] [blame] | 143 | } |