diff options
| -rw-r--r-- | gst/rtp/Makefile.am | 2 | ||||
| -rw-r--r-- | gst/rtp/gstrtp.c | 4 | ||||
| -rw-r--r-- | gst/rtp/gstrtpbvdepay.c | 187 | ||||
| -rw-r--r-- | gst/rtp/gstrtpbvdepay.h | 58 |
4 files changed, 251 insertions, 0 deletions
diff --git a/gst/rtp/Makefile.am b/gst/rtp/Makefile.am index facc59ed5..5520fd42d 100644 --- a/gst/rtp/Makefile.am +++ b/gst/rtp/Makefile.am @@ -6,6 +6,7 @@ libgstrtp_la_SOURCES = \ gstrtpchannels.c \ gstrtpdepay.c \ gstrtpac3depay.c \ + gstrtpbvdepay.c \ gstrtpbvpay.c \ gstrtpceltdepay.c \ gstrtpceltpay.c \ @@ -86,6 +87,7 @@ noinst_HEADERS = \ gstrtpL16depay.h \ gstrtpL16pay.h \ gstrtpac3depay.h \ + gstrtpbvdepay.h \ gstrtpbvpay.h \ gstrtpceltpay.h \ gstrtpceltdepay.h \ diff --git a/gst/rtp/gstrtp.c b/gst/rtp/gstrtp.c index d21efccf8..49cd15137 100644 --- a/gst/rtp/gstrtp.c +++ b/gst/rtp/gstrtp.c @@ -23,6 +23,7 @@ #include "gstrtpdepay.h" #include "gstrtpac3depay.h" +#include "gstrtpbvdepay.h" #include "gstrtpbvpay.h" #include "gstrtpceltdepay.h" #include "gstrtpceltpay.h" @@ -90,6 +91,9 @@ plugin_init (GstPlugin * plugin) if (!gst_rtp_ac3_depay_plugin_init (plugin)) return FALSE; + if (!gst_rtp_bv_depay_plugin_init (plugin)) + return FALSE; + if (!gst_rtp_bv_pay_plugin_init (plugin)) return FALSE; diff --git a/gst/rtp/gstrtpbvdepay.c b/gst/rtp/gstrtpbvdepay.c new file mode 100644 index 000000000..f60556926 --- /dev/null +++ b/gst/rtp/gstrtpbvdepay.c @@ -0,0 +1,187 @@ +/* GStreamer + * Copyright (C) <2009> 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <string.h> +#include <stdlib.h> + +#include <gst/rtp/gstrtpbuffer.h> +#include "gstrtpbvdepay.h" + +/* elementfactory information */ +static const GstElementDetails gst_rtp_bv_depay_details = +GST_ELEMENT_DETAILS ("RTP BroadcomVoice depayloader", + "Codec/Depayloader/Network", + "Extracts BroadcomVoice audio from RTP packets (RFC 4298)", + "Wim Taymans <wim.taymans@collabora.co.uk>"); + +static GstStaticPadTemplate gst_rtp_bv_depay_sink_template = + GST_STATIC_PAD_TEMPLATE ("sink", + GST_PAD_SINK, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("application/x-rtp, " + "media = (string) \"audio\", " + "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", " + "clock-rate = (int) 8000, " + "encoding-name = (string) \"BV16\"; " + "application/x-rtp, " + "media = (string) \"audio\", " + "payload = (int) " GST_RTP_PAYLOAD_DYNAMIC_STRING ", " + "clock-rate = (int) 16000, " "encoding-name = (string) \"BV32\"") + ); + +static GstStaticPadTemplate gst_rtp_bv_depay_src_template = +GST_STATIC_PAD_TEMPLATE ("src", + GST_PAD_SRC, + GST_PAD_ALWAYS, + GST_STATIC_CAPS ("audio/x-bv, " "mode = (int) { 16, 32 }") + ); + +static GstBuffer *gst_rtp_bv_depay_process (GstBaseRTPDepayload * depayload, + GstBuffer * buf); +static gboolean gst_rtp_bv_depay_setcaps (GstBaseRTPDepayload * depayload, + GstCaps * caps); + +GST_BOILERPLATE (GstRTPBVDepay, gst_rtp_bv_depay, GstBaseRTPDepayload, + GST_TYPE_BASE_RTP_DEPAYLOAD); + +static void +gst_rtp_bv_depay_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_bv_depay_src_template)); + gst_element_class_add_pad_template (element_class, + gst_static_pad_template_get (&gst_rtp_bv_depay_sink_template)); + gst_element_class_set_details (element_class, &gst_rtp_bv_depay_details); +} + +static void +gst_rtp_bv_depay_class_init (GstRTPBVDepayClass * klass) +{ + GObjectClass *gobject_class; + GstBaseRTPDepayloadClass *gstbasertpdepayload_class; + + gobject_class = (GObjectClass *) klass; + gstbasertpdepayload_class = (GstBaseRTPDepayloadClass *) klass; + + gstbasertpdepayload_class->process = gst_rtp_bv_depay_process; + gstbasertpdepayload_class->set_caps = gst_rtp_bv_depay_setcaps; +} + +static void +gst_rtp_bv_depay_init (GstRTPBVDepay * rtpbvdepay, GstRTPBVDepayClass * klass) +{ + rtpbvdepay->mode = -1; +} + +static gboolean +gst_rtp_bv_depay_setcaps (GstBaseRTPDepayload * depayload, GstCaps * caps) +{ + GstRTPBVDepay *rtpbvdepay = GST_RTP_BV_DEPAY (depayload); + GstCaps *srccaps; + GstStructure *structure; + const gchar *mode_str = NULL; + gint mode, clock_rate, expected_rate; + gboolean ret; + + structure = gst_caps_get_structure (caps, 0); + + mode_str = gst_structure_get_string (structure, "encoding-name"); + if (!mode_str) + goto no_mode; + + if (!strcmp (mode_str, "BV16")) { + mode = 16; + expected_rate = 8000; + } else if (!strcmp (mode_str, "BV32")) { + mode = 32; + expected_rate = 16000; + } else + goto invalid_mode; + + if (!gst_structure_get_int (structure, "clock-rate", &clock_rate)) + clock_rate = expected_rate; + else if (clock_rate != expected_rate) + goto wrong_rate; + + depayload->clock_rate = clock_rate; + rtpbvdepay->mode = mode; + + srccaps = gst_caps_new_simple ("audio/x-bv", + "mode", G_TYPE_INT, rtpbvdepay->mode, NULL); + ret = gst_pad_set_caps (GST_BASE_RTP_DEPAYLOAD_SRCPAD (depayload), srccaps); + + GST_DEBUG ("set caps on source: %" GST_PTR_FORMAT " (ret=%d)", srccaps, ret); + gst_caps_unref (srccaps); + + return ret; + + /* ERRORS */ +no_mode: + { + GST_ERROR_OBJECT (rtpbvdepay, "did not receive an encoding-name"); + return FALSE; + } +invalid_mode: + { + GST_ERROR_OBJECT (rtpbvdepay, + "invalid encoding-name, expected BV16 or BV32, got %s", mode_str); + return FALSE; + } +wrong_rate: + { + GST_ERROR_OBJECT (rtpbvdepay, "invalid clock-rate, expected %d, got %d", + expected_rate, clock_rate); + return FALSE; + } +} + +static GstBuffer * +gst_rtp_bv_depay_process (GstBaseRTPDepayload * depayload, GstBuffer * buf) +{ + GstBuffer *outbuf; + gboolean marker; + + marker = gst_rtp_buffer_get_marker (buf); + + GST_DEBUG ("process : got %d bytes, mark %d ts %u seqn %d", + GST_BUFFER_SIZE (buf), marker, + gst_rtp_buffer_get_timestamp (buf), gst_rtp_buffer_get_seq (buf)); + + outbuf = gst_rtp_buffer_get_payload_buffer (buf); + + if (marker) { + /* mark start of talkspurt with DISCONT */ + GST_BUFFER_FLAG_SET (outbuf, GST_BUFFER_FLAG_DISCONT); + } + + return outbuf; +} + +gboolean +gst_rtp_bv_depay_plugin_init (GstPlugin * plugin) +{ + return gst_element_register (plugin, "rtpbvdepay", + GST_RANK_MARGINAL, GST_TYPE_RTP_BV_DEPAY); +} diff --git a/gst/rtp/gstrtpbvdepay.h b/gst/rtp/gstrtpbvdepay.h new file mode 100644 index 000000000..c2d2130e5 --- /dev/null +++ b/gst/rtp/gstrtpbvdepay.h @@ -0,0 +1,58 @@ +/* GStreamer + * Copyright (C) <2009> 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., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_RTP_BV_DEPAY_H__ +#define __GST_RTP_BV_DEPAY_H__ + +#include <gst/gst.h> +#include <gst/rtp/gstbasertpdepayload.h> + +G_BEGIN_DECLS + +typedef struct _GstRTPBVDepay GstRTPBVDepay; +typedef struct _GstRTPBVDepayClass GstRTPBVDepayClass; + +#define GST_TYPE_RTP_BV_DEPAY \ + (gst_rtp_bv_depay_get_type()) +#define GST_RTP_BV_DEPAY(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_RTP_BV_DEPAY,GstRTPBVDepay)) +#define GST_RTP_BV_DEPAY_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_RTP_BV_DEPAY,GstRTPBVDepayClass)) +#define GST_IS_RTP_BV_DEPAY(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_RTP_BV_DEPAY)) +#define GST_IS_RTP_BV_DEPAY_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_RTP_BV_DEPAY)) + +struct _GstRTPBVDepay +{ + GstBaseRTPDepayload depayload; + + gint mode; +}; + +struct _GstRTPBVDepayClass +{ + GstBaseRTPDepayloadClass parent_class; +}; + +gboolean gst_rtp_bv_depay_plugin_init (GstPlugin * plugin); + +G_END_DECLS + +#endif /* __GST_RTP_BV_DEPAY_H__ */ |