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gstreamer/gst/realmedia/rtspreal.c
Wim Taymans b3b467efbe gst/realmedia/: Use g_hash_table_destroy instead of _unref which is too new. 
Original commit message from CVS:
* gst/realmedia/asmrules.c: (gst_asm_node_free),
(gst_asm_node_evaluate), (gst_asm_scan_new), (gst_asm_scan_free),
(gst_asm_scan_string), (gst_asm_scan_number),
(gst_asm_scan_identifier), (gst_asm_scan_print_token),
(gst_asm_scan_next_token), (gst_asm_rule_free),
(gst_asm_rule_add_property), (gst_asm_scan_parse_operand),
(gst_asm_scan_parse_expression), (gst_asm_scan_parse_condition),
(gst_asm_scan_parse_property), (gst_asm_scan_parse_rule),
(gst_asm_rule_evaluate), (gst_asm_rule_book_new),
(gst_asm_rule_book_n_rules), (gst_asm_rule_book_free),
(gst_asm_rule_book_match), (main):
* gst/realmedia/rtspreal.c: (rtsp_ext_real_parse_sdp),
(rtsp_ext_real_stream_select), (gst_rtsp_real_plugin_init):
Use g_hash_table_destroy instead of _unref which is too new.
2007-08-02 19:37:41 +00:00

737 lines
23 KiB
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/* GStreamer
* Copyright (C) <2005,2006> Wim Taymans <wim@fluendo.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.
*/
/* Element-Checklist-Version: 5 */
/**
* SECTION:element-rtspreal
*
* <refsect2>
* <para>
* A RealMedia RTSP extension
* </para>
* </refsect2>
*
* Last reviewed on 2007-07-25 (0.10.14)
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdlib.h>
#include <stdint.h>
#include <string.h>
#include <gst/rtsp/gstrtspextension.h>
#include <gst/rtsp/gstrtspbase64.h>
#include "realhash.h"
#include "rtspreal.h"
#include "asmrules.h"
GST_DEBUG_CATEGORY_STATIC (rtspreal_debug);
#define GST_CAT_DEFAULT (rtspreal_debug)
/* elementfactory information */
static const GstElementDetails rtspreal_details =
GST_ELEMENT_DETAILS ("RealMedia RTSP Extension",
"Network/Extension/Protocol",
"Extends RTSP so that it can handle RealMedia setup",
"Wim Taymans <wim.taymans@gmail.com>");
#define SERVER_PREFIX "RealServer"
static GstRTSPResult
rtsp_ext_real_get_transports (GstRTSPExtension * ext,
GstRTSPLowerTrans protocols, gchar ** transport)
{
GstRTSPReal *ctx = (GstRTSPReal *) ext;
GString *str;
if (!ctx->isreal)
return GST_RTSP_OK;
GST_DEBUG_OBJECT (ext, "generating transports for %d", protocols);
str = g_string_new ("");
if (protocols & GST_RTSP_LOWER_TRANS_UDP_MCAST) {
g_string_append (str, "x-real-rdt/mcast;client_port=%%u1;mode=play,");
}
if (protocols & GST_RTSP_LOWER_TRANS_UDP) {
g_string_append (str, "x-real-rdt/udp;client_port=%%u1;mode=play,");
g_string_append (str, "x-pn-tng/udp;client_port=%%u1;mode=play,");
}
if (protocols & GST_RTSP_LOWER_TRANS_TCP) {
g_string_append (str, "x-real-rdt/tcp;mode=play,");
g_string_append (str, "x-pn-tng/tcp;mode=play,");
}
/* if we added something, remove trailing ',' */
if (str->len > 0)
g_string_truncate (str, str->len - 1);
*transport = g_string_free (str, FALSE);
return GST_RTSP_OK;
}
static GstRTSPResult
rtsp_ext_real_before_send (GstRTSPExtension * ext, GstRTSPMessage * request)
{
GstRTSPReal *ctx = (GstRTSPReal *) ext;
switch (request->type_data.request.method) {
case GST_RTSP_OPTIONS:
{
gst_rtsp_message_add_header (request, GST_RTSP_HDR_USER_AGENT,
//"RealMedia Player (" GST_PACKAGE_NAME ")");
"RealMedia Player Version 6.0.9.1235 (linux-2.0-libc6-i386-gcc2.95)");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_CLIENT_CHALLENGE,
"9e26d33f2984236010ef6253fb1887f7");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_COMPANY_ID,
"KnKV4M4I/B2FjJ1TToLycw==");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_GUID,
"00000000-0000-0000-0000-000000000000");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_REGION_DATA, "0");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_PLAYER_START_TIME,
"[28/03/2003:22:50:23 00:00]");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_CLIENT_ID,
"Linux_2.4_6.0.9.1235_play32_RN01_EN_586");
ctx->isreal = FALSE;
break;
}
case GST_RTSP_DESCRIBE:
{
gst_rtsp_message_add_header (request, GST_RTSP_HDR_BANDWIDTH, "10485800");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_GUID,
"00000000-0000-0000-0000-000000000000");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_REGION_DATA, "0");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_CLIENT_ID,
"Linux_2.4_6.0.9.1235_play32_RN01_EN_586");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_MAX_ASM_WIDTH, "1");
gst_rtsp_message_add_header (request, GST_RTSP_HDR_LANGUAGE, "en-US");
break;
}
case GST_RTSP_SETUP:
{
if (ctx->isreal) {
gchar *value =
g_strdup_printf ("%s, sd=%s", ctx->challenge2, ctx->checksum);
gst_rtsp_message_add_header (request, GST_RTSP_HDR_REAL_CHALLENGE2,
value);
g_free (value);
}
break;
}
default:
break;
}
return GST_RTSP_OK;
}
static GstRTSPResult
rtsp_ext_real_after_send (GstRTSPExtension * ext, GstRTSPMessage * req,
GstRTSPMessage * resp)
{
GstRTSPReal *ctx = (GstRTSPReal *) ext;
switch (req->type_data.request.method) {
case GST_RTSP_OPTIONS:
{
gchar *challenge1 = NULL;
gchar *server = NULL;
gst_rtsp_message_get_header (resp, GST_RTSP_HDR_SERVER, &server, 0);
gst_rtsp_message_get_header (resp, GST_RTSP_HDR_REAL_CHALLENGE1,
&challenge1, 0);
if (!challenge1)
goto no_challenge1;
gst_rtsp_ext_real_calc_response_and_checksum (ctx->challenge2,
ctx->checksum, challenge1);
break;
}
default:
break;
}
return GST_RTSP_OK;
/* ERRORS */
no_challenge1:
{
GST_DEBUG_OBJECT (ctx, "Could not find challenge tag.");
ctx->isreal = FALSE;
return GST_RTSP_OK;
}
}
#define ENSURE_SIZE(size) \
G_STMT_START { \
while (data_len < size) { \
data_len += 1024; \
data = g_realloc (data, data_len); \
} \
} G_STMT_END
#define READ_BUFFER_GEN(src, func, name, dest, dest_len) \
G_STMT_START { \
dest = (gchar *)func (src, name); \
if (!dest) { \
dest = ""; \
dest_len = 0; \
} \
else if (!strncmp (dest, "buffer;\"", 8)) { \
dest += 8; \
dest_len = strlen (dest) - 1; \
dest[dest_len] = '\0'; \
gst_rtsp_base64_decode_ip (dest, &dest_len); \
} \
} G_STMT_END
#define READ_BUFFER(sdp, name, dest, dest_len) \
READ_BUFFER_GEN(sdp, gst_sdp_message_get_attribute_val, name, dest, dest_len)
#define READ_BUFFER_M(media, name, dest, dest_len) \
READ_BUFFER_GEN(media, gst_sdp_media_get_attribute_val, name, dest, dest_len)
#define READ_INT_GEN(src, func, name, dest) \
G_STMT_START { \
const gchar *val = func (src, name); \
if (val && !strncmp (val, "integer;", 8)) \
dest = atoi (val + 8); \
else \
dest = 0; \
} G_STMT_END
#define READ_INT(sdp, name, dest) \
READ_INT_GEN(sdp, gst_sdp_message_get_attribute_val, name, dest)
#define READ_INT_M(media, name, dest) \
READ_INT_GEN(media, gst_sdp_media_get_attribute_val, name, dest)
#define READ_STRING(media, name, dest, dest_len) \
G_STMT_START { \
const gchar *val = gst_sdp_media_get_attribute_val (media, name); \
if (val && !strncmp (val, "string;\"", 8)) { \
dest = (gchar *) val + 8; \
dest_len = strlen (dest) - 1; \
dest[dest_len] = '\0'; \
} else { \
dest = ""; \
dest_len = 0; \
} \
} G_STMT_END
#define WRITE_STRING1(datap, str, str_len) \
G_STMT_START { \
*datap = str_len; \
memcpy ((datap) + 1, str, str_len); \
datap += str_len + 1; \
} G_STMT_END
#define WRITE_STRING2(datap, str, str_len) \
G_STMT_START { \
GST_WRITE_UINT16_BE (datap, str_len); \
memcpy (datap + 2, str, str_len); \
datap += str_len + 2; \
} G_STMT_END
static GstRTSPResult
rtsp_ext_real_parse_sdp (GstRTSPExtension * ext, GstSDPMessage * sdp,
GstStructure * props)
{
GstRTSPReal *ctx = (GstRTSPReal *) ext;
guint size;
gint i;
gchar *title, *author, *copyright, *comment;
gsize title_len, author_len, copyright_len, comment_len;
guint8 *data = NULL, *datap;
guint data_len = 0, offset;
GstBuffer *buf;
gchar *opaque_data;
gsize opaque_data_len, asm_rule_book_len;
/* don't bother for non-real formats */
READ_INT (sdp, "IsRealDataType", ctx->isreal);
if (!ctx->isreal)
return TRUE;
/* Force PAUSE | PLAY */
//src->methods |= GST_RTSP_PLAY | GST_RTSP_PAUSE;
ctx->n_streams = gst_sdp_message_medias_len (sdp);
ctx->max_bit_rate = 0;
ctx->avg_bit_rate = 0;
ctx->max_packet_size = 0;
ctx->avg_packet_size = 0;
ctx->duration = 0;
for (i = 0; i < ctx->n_streams; i++) {
const GstSDPMedia *media;
gint intval;
media = gst_sdp_message_get_media (sdp, i);
READ_INT_M (media, "MaxBitRate", intval);
ctx->max_bit_rate += intval;
READ_INT_M (media, "AvgBitRate", intval);
ctx->avg_bit_rate += intval;
READ_INT_M (media, "MaxPacketSize", intval);
ctx->max_packet_size = MAX (ctx->max_packet_size, intval);
READ_INT_M (media, "AvgPacketSize", intval);
ctx->avg_packet_size = (ctx->avg_packet_size * i + intval) / (i + 1);
READ_INT_M (media, "Duration", intval);
ctx->duration = MAX (ctx->duration, intval);
}
/* PROP */
offset = 0;
size = 50;
ENSURE_SIZE (size);
datap = data + offset;
memcpy (datap + 0, "PROP", 4);
GST_WRITE_UINT32_BE (datap + 4, size);
GST_WRITE_UINT16_BE (datap + 8, 0);
GST_WRITE_UINT32_BE (datap + 10, ctx->max_bit_rate);
GST_WRITE_UINT32_BE (datap + 14, ctx->avg_bit_rate);
GST_WRITE_UINT32_BE (datap + 18, ctx->max_packet_size);
GST_WRITE_UINT32_BE (datap + 22, ctx->avg_packet_size);
GST_WRITE_UINT32_BE (datap + 26, 0);
GST_WRITE_UINT32_BE (datap + 30, ctx->duration);
GST_WRITE_UINT32_BE (datap + 34, 0);
GST_WRITE_UINT32_BE (datap + 38, 0);
GST_WRITE_UINT32_BE (datap + 42, 0);
GST_WRITE_UINT16_BE (datap + 46, ctx->n_streams);
GST_WRITE_UINT16_BE (datap + 48, 0);
offset += size;
/* CONT */
READ_BUFFER (sdp, "Title", title, title_len);
READ_BUFFER (sdp, "Author", author, author_len);
READ_BUFFER (sdp, "Comment", comment, comment_len);
READ_BUFFER (sdp, "Copyright", copyright, copyright_len);
size = 20 + title_len + author_len + comment_len + copyright_len;
ENSURE_SIZE (offset + size);
datap = data + offset;
memcpy (datap, "CONT", 4);
GST_WRITE_UINT32_BE (datap + 4, size);
datap += 8;
WRITE_STRING2 (datap, title, title_len);
WRITE_STRING2 (datap, author, author_len);
WRITE_STRING2 (datap, copyright, copyright_len);
WRITE_STRING2 (datap, comment, comment_len);
offset += size;
/* MDPR */
for (i = 0; i < ctx->n_streams; i++) {
const GstSDPMedia *media;
guint16 j, sel;
guint32 len;
GstRTSPRealStream *stream;
gchar *str;
media = gst_sdp_message_get_media (sdp, i);
stream = g_new0 (GstRTSPRealStream, 1);
ctx->streams = g_list_append (ctx->streams, stream);
READ_INT_M (media, "MaxBitRate", stream->max_bit_rate);
READ_INT_M (media, "AvgBitRate", stream->avg_bit_rate);
READ_INT_M (media, "MaxPacketSize", stream->max_packet_size);
READ_INT_M (media, "AvgPacketSize", stream->avg_packet_size);
READ_INT_M (media, "StartTime", stream->start_time);
READ_INT_M (media, "Preroll", stream->preroll);
READ_INT_M (media, "Duration", stream->duration);
READ_STRING (media, "StreamName", str, stream->stream_name_len);
stream->stream_name = g_strndup (str, stream->stream_name_len);
READ_STRING (media, "mimetype", str, stream->mime_type_len);
stream->mime_type = g_strndup (str, stream->mime_type_len);
/* FIXME: Depending on the current bandwidth, we need to select one
* bandwith out of a list offered by the server. Someone needs to write
* a parser for strings like
*
* #($Bandwidth < 67959),TimestampDelivery=T,DropByN=T,priority=9;
* #($Bandwidth >= 67959) && ($Bandwidth < 167959),AverageBandwidth=67959,
* Priority=9;#($Bandwidth >= 67959) && ($Bandwidth < 167959),
* AverageBandwidth=0,Priority=5,OnDepend=\"1\";
* #($Bandwidth >= 167959) && ($Bandwidth < 267959),
* AverageBandwidth=167959,Priority=9;
* #($Bandwidth >= 167959) && ($Bandwidth < 267959),AverageBandwidth=0,
* Priority=5,OnDepend=\"3\";#($Bandwidth >= 267959),
* AverageBandwidth=267959,Priority=9;#($Bandwidth >= 267959),
* AverageBandwidth=0,Priority=5,OnDepend=\"5\";
*
* As I don't know how to do that, I just use the first entry (sel = 0).
* But to give you a starting point, I offer you above string
* in the variable 'asm_rule_book'.
*/
READ_STRING (media, "ASMRuleBook", str, asm_rule_book_len);
stream->rulebook = gst_asm_rule_book_new (str);
sel = 0;
READ_BUFFER_M (media, "OpaqueData", opaque_data, opaque_data_len);
if (opaque_data_len < 4) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 4", opaque_data_len);
goto strange_opaque_data;
}
if (strncmp (opaque_data, "MLTI", 4)) {
GST_DEBUG_OBJECT (ctx, "no MLTI found, appending all");
stream->type_specific_data_len = opaque_data_len;
stream->type_specific_data = g_memdup (opaque_data, opaque_data_len);
goto no_type_specific;
}
opaque_data += 4;
opaque_data_len -= 4;
if (opaque_data_len < 2) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 2", opaque_data_len);
goto strange_opaque_data;
}
stream->num_rules = GST_READ_UINT16_BE (opaque_data);
opaque_data += 2;
opaque_data_len -= 2;
if (sel >= stream->num_rules) {
GST_DEBUG_OBJECT (ctx, "sel %d >= num_rules %d", sel, stream->num_rules);
goto strange_opaque_data;
}
if (opaque_data_len < 2 * sel) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 2 * sel (%d)",
opaque_data_len, 2 * sel);
goto strange_opaque_data;
}
opaque_data += 2 * sel;
opaque_data_len -= 2 * sel;
if (opaque_data_len < 2) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 2", opaque_data_len);
goto strange_opaque_data;
}
stream->codec = GST_READ_UINT16_BE (opaque_data);
opaque_data += 2;
opaque_data_len -= 2;
if (opaque_data_len < 2 * (stream->num_rules - sel - 1)) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < %d", opaque_data_len,
2 * (stream->num_rules - sel - 1));
goto strange_opaque_data;
}
opaque_data += 2 * (stream->num_rules - sel - 1);
opaque_data_len -= 2 * (stream->num_rules - sel - 1);
if (opaque_data_len < 2) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 2", opaque_data_len);
goto strange_opaque_data;
}
stream->num_rules = GST_READ_UINT16_BE (opaque_data);
opaque_data += 2;
opaque_data_len -= 2;
if (stream->codec > stream->num_rules) {
GST_DEBUG_OBJECT (ctx, "codec %d > num_rules %d", stream->codec,
stream->num_rules);
goto strange_opaque_data;
}
for (j = 0; j < stream->codec; j++) {
if (opaque_data_len < 4) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 4", opaque_data_len);
goto strange_opaque_data;
}
len = GST_READ_UINT32_BE (opaque_data);
opaque_data += 4;
opaque_data_len -= 4;
if (opaque_data_len < len) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < len %d", opaque_data_len,
len);
goto strange_opaque_data;
}
opaque_data += len;
opaque_data_len -= len;
}
if (opaque_data_len < 4) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < 4", opaque_data_len);
goto strange_opaque_data;
}
stream->type_specific_data_len = GST_READ_UINT32_BE (opaque_data);
opaque_data += 4;
opaque_data_len -= 4;
if (opaque_data_len < stream->type_specific_data_len) {
GST_DEBUG_OBJECT (ctx, "opaque_data_len %d < %d", opaque_data_len,
stream->type_specific_data_len);
goto strange_opaque_data;
}
stream->type_specific_data =
g_memdup (opaque_data, stream->type_specific_data_len);
no_type_specific:
size =
46 + stream->stream_name_len + stream->mime_type_len +
stream->type_specific_data_len;
ENSURE_SIZE (offset + size);
datap = data + offset;
memcpy (datap, "MDPR", 4);
GST_WRITE_UINT32_BE (datap + 4, size);
GST_WRITE_UINT16_BE (datap + 8, 0);
GST_WRITE_UINT16_BE (datap + 10, i);
GST_WRITE_UINT32_BE (datap + 12, stream->max_bit_rate);
GST_WRITE_UINT32_BE (datap + 16, stream->avg_bit_rate);
GST_WRITE_UINT32_BE (datap + 20, stream->max_packet_size);
GST_WRITE_UINT32_BE (datap + 24, stream->avg_packet_size);
GST_WRITE_UINT32_BE (datap + 28, stream->start_time);
GST_WRITE_UINT32_BE (datap + 32, stream->preroll);
GST_WRITE_UINT32_BE (datap + 36, stream->duration);
datap += 40;
WRITE_STRING1 (datap, stream->stream_name, stream->stream_name_len);
WRITE_STRING1 (datap, stream->mime_type, stream->mime_type_len);
GST_WRITE_UINT32_BE (datap, stream->type_specific_data_len);
if (stream->type_specific_data_len)
memcpy (datap + 4, stream->type_specific_data,
stream->type_specific_data_len);
offset += size;
}
/* DATA */
size = 18;
ENSURE_SIZE (offset + size);
datap = data + offset;
memcpy (datap, "DATA", 4);
GST_WRITE_UINT32_BE (datap + 4, size);
GST_WRITE_UINT16_BE (datap + 8, 0);
GST_WRITE_UINT32_BE (datap + 10, 0); /* number of packets */
GST_WRITE_UINT32_BE (datap + 14, 0); /* next data header */
offset += size;
buf = gst_buffer_new ();
GST_BUFFER_DATA (buf) = data;
GST_BUFFER_MALLOCDATA (buf) = data;
GST_BUFFER_SIZE (buf) = offset;
/* Set on caps */
gst_structure_set (props, "config", GST_TYPE_BUFFER, buf, NULL);
/* Overwrite encoding and media fields */
gst_structure_set (props, "encoding-name", G_TYPE_STRING, "X-REAL-RDT", NULL);
gst_structure_set (props, "media", G_TYPE_STRING, "application", NULL);
return TRUE;
/* ERRORS */
strange_opaque_data:
{
GST_ELEMENT_ERROR (ctx, RESOURCE, WRITE, ("Strange opaque data."), (NULL));
return FALSE;
}
}
static GstRTSPResult
rtsp_ext_real_stream_select (GstRTSPExtension * ext, GstRTSPUrl * url)
{
GstRTSPReal *ctx = (GstRTSPReal *) ext;
GstRTSPResult res;
GstRTSPMessage request = { 0 };
GstRTSPMessage response = { 0 };
gchar *req_url;
GString *rules;
GList *walk;
gint i;
GHashTable *vars;
if (!ctx->isreal)
return GST_RTSP_OK;
req_url = gst_rtsp_url_get_request_uri (url);
/* create SET_PARAMETER */
if ((res = gst_rtsp_message_init_request (&request, GST_RTSP_SET_PARAMETER,
req_url)) < 0)
goto create_request_failed;
g_free (req_url);
rules = g_string_new ("");
vars = g_hash_table_new (g_str_hash, g_str_equal);
g_hash_table_insert (vars, "Bandwidth", "300000");
for (walk = ctx->streams, i = 0; walk; walk = g_list_next (walk), i++) {
GstRTSPRealStream *stream;
gint rulematches[MAX_RULEMATCHES];
gint j, n;
stream = (GstRTSPRealStream *) walk->data;
n = gst_asm_rule_book_match (stream->rulebook, vars, rulematches);
for (j = 0; j < n; j++) {
g_string_append_printf (rules, "stream=%u;rule=%u,", i, rulematches[j]);
}
}
g_hash_table_destroy (vars);
/* strip final , if we added some stream rules */
if (rules->len > 0) {
rules = g_string_truncate (rules, rules->len - 1);
}
/* do selection */
gst_rtsp_message_add_header (&request, GST_RTSP_HDR_SUBSCRIBE, rules->str);
g_string_free (rules, TRUE);
/* send SET_PARAMETER */
if ((res = gst_rtsp_extension_send (ext, &request, &response)) < 0)
goto send_error;
gst_rtsp_message_unset (&request);
gst_rtsp_message_unset (&response);
return GST_RTSP_OK;
/* ERRORS */
create_request_failed:
{
GST_ELEMENT_ERROR (ctx, LIBRARY, INIT,
("Could not create request."), (NULL));
goto reset;
}
send_error:
{
GST_ELEMENT_ERROR (ctx, RESOURCE, WRITE,
("Could not send message."), (NULL));
goto reset;
}
reset:
{
gst_rtsp_message_unset (&request);
gst_rtsp_message_unset (&response);
return res;
}
}
static void gst_rtsp_real_finalize (GObject * object);
static GstStateChangeReturn gst_rtsp_real_change_state (GstElement * element,
GstStateChange transition);
static void gst_rtsp_real_extension_init (gpointer g_iface,
gpointer iface_data);
static void
_do_init (GType rtspreal_type)
{
static const GInterfaceInfo rtspextension_info = {
gst_rtsp_real_extension_init,
NULL,
NULL
};
g_type_add_interface_static (rtspreal_type, GST_TYPE_RTSP_EXTENSION,
&rtspextension_info);
}
GST_BOILERPLATE_FULL (GstRTSPReal, gst_rtsp_real, GstElement, GST_TYPE_ELEMENT,
_do_init);
static void
gst_rtsp_real_base_init (gpointer klass)
{
GstElementClass *element_class = GST_ELEMENT_CLASS (klass);
gst_element_class_set_details (element_class, &rtspreal_details);
}
static void
gst_rtsp_real_class_init (GstRTSPRealClass * g_class)
{
GObjectClass *gobject_class;
GstElementClass *gstelement_class;
GstRTSPRealClass *klass;
klass = (GstRTSPRealClass *) g_class;
gobject_class = (GObjectClass *) klass;
gstelement_class = (GstElementClass *) klass;
gobject_class->finalize = gst_rtsp_real_finalize;
gstelement_class->change_state =
GST_DEBUG_FUNCPTR (gst_rtsp_real_change_state);
GST_DEBUG_CATEGORY_INIT (rtspreal_debug, "rtspreal", 0,
"RealMedia RTSP extension");
}
static void
gst_rtsp_real_init (GstRTSPReal * rtspreal, GstRTSPRealClass * klass)
{
rtspreal->isreal = FALSE;
}
static void
gst_rtsp_real_finalize (GObject * object)
{
GstRTSPReal *rtspreal;
rtspreal = GST_RTSP_REAL (object);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static GstStateChangeReturn
gst_rtsp_real_change_state (GstElement * element, GstStateChange transition)
{
GstStateChangeReturn ret;
GstRTSPReal *rtspreal;
rtspreal = GST_RTSP_REAL (element);
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
return ret;
}
static void
gst_rtsp_real_extension_init (gpointer g_iface, gpointer iface_data)
{
GstRTSPExtensionInterface *iface = (GstRTSPExtensionInterface *) g_iface;
iface->before_send = rtsp_ext_real_before_send;
iface->after_send = rtsp_ext_real_after_send;
iface->parse_sdp = rtsp_ext_real_parse_sdp;
iface->stream_select = rtsp_ext_real_stream_select;
iface->get_transports = rtsp_ext_real_get_transports;
}
gboolean
gst_rtsp_real_plugin_init (GstPlugin * plugin)
{
return gst_element_register (plugin, "rtspreal",
GST_RANK_MARGINAL, GST_TYPE_RTSP_REAL);
}
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