diff options
Diffstat (limited to 'tinySDP/src/headers/tsdp_header_M.c')
| -rw-r--r-- | tinySDP/src/headers/tsdp_header_M.c | 811 |
1 files changed, 811 insertions, 0 deletions
diff --git a/tinySDP/src/headers/tsdp_header_M.c b/tinySDP/src/headers/tsdp_header_M.c new file mode 100644 index 0000000..74ea1dd --- /dev/null +++ b/tinySDP/src/headers/tsdp_header_M.c @@ -0,0 +1,811 @@ +
+/* #line 1 "./ragel/tsdp_parser_header_M.rl" */
+/*
+* Copyright (C) 2009-2010 Mamadou Diop.
+*
+* Contact: Mamadou Diop <diopmamadou(at)doubango.org>
+*
+* This file is part of Open Source Doubango Framework.
+*
+* DOUBANGO is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* DOUBANGO 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 General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with DOUBANGO.
+*
+*/
+
+
+/**@file tsdp_header_M.c
+ * @brief SDP "m=" header (Media Descriptions).
+ *
+ * @author Mamadou Diop <diopmamadou(at)doubango.org>
+ *
+ * @date Created: Iat Nov 8 16:54:58 2009 mdiop
+ */
+#include "tinysdp/headers/tsdp_header_M.h"
+
+#include "tsk_debug.h"
+#include "tsk_memory.h"
+#include "tsk_string.h"
+
+#include <string.h>
+
+/***********************************
+* Ragel state machine.
+*/
+
+/* #line 83 "./ragel/tsdp_parser_header_M.rl" */
+
+
+
+
+tsdp_header_M_t* tsdp_header_M_create(const char* media, uint32_t port, const char* proto)
+{
+ return tsk_object_new(TSDP_HEADER_M_VA_ARGS(media, port, proto));
+}
+
+tsdp_header_M_t* tsdp_header_M_create_null()
+{
+ return tsdp_header_M_create(tsk_null, 0, tsk_null);
+}
+
+tsdp_fmt_t* tsdp_fmt_create(const char* fmt)
+{
+ return tsk_object_new(TSDP_FMT_VA_ARGS(fmt));
+}
+
+
+int tsdp_header_M_tostring(const tsdp_header_t* header, tsk_buffer_t* output)
+{
+ if(header){
+ const tsdp_header_M_t *M = (const tsdp_header_M_t *)header;
+ const tsk_list_item_t* item;
+ tsk_istr_t nports;
+
+ tsk_itoa(M->nports, &nports);
+
+ /* IMPORTANT: Keep the order.
+
+ m= (media name and transport address)
+ i=* (media title)
+ c=* (connection information -- optional if included at
+ session level)
+ b=* (zero or more bandwidth information lines)
+ k=* (encryption key)
+ a=* (zero or more media attribute lines)
+ */
+ tsk_buffer_append_2(output, "%s %u%s%s %s",
+ M->media,
+ M->port,
+
+ M->nports ? "/" : "",
+ M->nports ? nports : "",
+
+ M->proto
+ );
+ // FMTs
+ tsk_list_foreach(item, M->FMTs){
+ tsk_buffer_append_2(output, " %s", TSDP_FMT_STR(item->data));
+ }
+ tsk_buffer_append(output, "\r\n", 2); // close the "m=" line.
+ // i=* (media title)
+ if(M->I){
+ tsdp_header_serialize(TSDP_HEADER(M->I), output);
+ }
+ // c=* (connection information -- optional if included at session level)
+ if(M->C){
+ tsdp_header_serialize(TSDP_HEADER(M->C), output);
+ }
+ // b=* (zero or more bandwidth information lines)
+ if(M->Bandwidths){
+ tsk_list_foreach(item, M->Bandwidths){
+ tsdp_header_serialize(TSDP_HEADER(item->data), output);
+ }
+ }
+ // k=* (encryption key)
+ if(M->K){
+ tsdp_header_serialize(TSDP_HEADER(M->K), output);
+ }
+ // a=* (zero or more media attribute lines)
+ if(M->Attributes){
+ tsk_list_foreach(item, M->Attributes){
+ tsdp_header_serialize(TSDP_HEADER(item->data), output);
+ }
+ }
+ return 0;
+ }
+
+ return -1;
+}
+
+tsdp_header_t* tsdp_header_M_clone(const tsdp_header_t* header)
+{
+ if(header){
+ const tsdp_header_M_t *M = (const tsdp_header_M_t *)header;
+ tsdp_header_M_t* clone;
+ const tsk_list_item_t* item;
+
+ if((clone = tsdp_header_M_create(M->media, M->port, M->proto))){
+ clone->nports = M->nports;
+
+ // Formats
+ tsk_list_foreach(item, M->FMTs){
+ tsk_string_t* string = tsk_string_create(TSK_STRING_STR(item->data));
+ tsk_list_push_back_data(clone->FMTs, (void**)&string);
+ }
+
+ // I
+ clone->I = (tsdp_header_I_t*) (M->I ? TSDP_HEADER(M->I)->clone(TSDP_HEADER(M->I)) : tsk_null);
+ // C
+ clone->C = (tsdp_header_C_t*) (M->C ? TSDP_HEADER(M->C)->clone(TSDP_HEADER(M->C)) : tsk_null);
+ // Bandwidths
+ tsk_list_foreach(item, M->Bandwidths){
+ tsdp_header_t* B;
+ if(!clone->Bandwidths){
+ clone->Bandwidths = tsk_list_create();
+ }
+ B = ((tsdp_header_t*)item->data)->clone((tsdp_header_t*)item->data);
+ tsk_list_push_back_data(clone->Bandwidths, (void**)&B);
+ }
+ // K
+ clone->K = (tsdp_header_K_t*) (M->K ? TSDP_HEADER(M->K)->clone(TSDP_HEADER(M->K)) : tsk_null);
+ // Attributes
+ tsk_list_foreach(item, M->Attributes){
+ tsdp_header_t* A;
+ if(!clone->Attributes){
+ clone->Attributes = tsk_list_create();
+ }
+ A = ((tsdp_header_t*)item->data)->clone((tsdp_header_t*)item->data);
+ tsk_list_push_back_data(clone->Attributes, (void**)&A);
+ }
+ }
+
+ return TSDP_HEADER(clone);
+ }
+ return tsk_null;
+}
+
+tsdp_header_M_t *tsdp_header_M_parse(const char *data, tsk_size_t size)
+{
+ int cs = 0;
+ const char *p = data;
+ const char *pe = p + size;
+ const char *eof = pe;
+ tsdp_header_M_t *hdr_M = tsdp_header_M_create_null();
+
+ const char *tag_start;
+
+
+/* #line 188 "./src/headers/tsdp_header_M.c" */
+static const char _tsdp_machine_parser_header_M_actions[] = {
+ 0, 1, 0, 1, 1, 1, 2, 1,
+ 3, 1, 4
+};
+
+static const char _tsdp_machine_parser_header_M_key_offsets[] = {
+ 0, 0, 1, 3, 18, 33, 35, 39,
+ 53, 54, 68, 82, 84, 87, 102, 102
+};
+
+static const char _tsdp_machine_parser_header_M_trans_keys[] = {
+ 109, 32, 61, 32, 33, 37, 39, 126,
+ 42, 43, 45, 46, 48, 57, 65, 90,
+ 95, 122, 32, 33, 37, 39, 126, 42,
+ 43, 45, 46, 48, 57, 65, 90, 95,
+ 122, 48, 57, 32, 47, 48, 57, 33,
+ 37, 39, 126, 42, 43, 45, 46, 48,
+ 57, 65, 90, 95, 122, 10, 33, 37,
+ 39, 126, 42, 43, 45, 46, 48, 57,
+ 65, 90, 95, 122, 33, 37, 39, 126,
+ 42, 43, 45, 46, 48, 57, 65, 90,
+ 95, 122, 48, 57, 32, 48, 57, 13,
+ 32, 33, 37, 39, 47, 126, 42, 43,
+ 45, 57, 65, 90, 95, 122, 13, 32,
+ 33, 37, 39, 126, 42, 43, 45, 46,
+ 48, 57, 65, 90, 95, 122, 0
+};
+
+static const char _tsdp_machine_parser_header_M_single_lengths[] = {
+ 0, 1, 2, 5, 5, 0, 2, 4,
+ 1, 4, 4, 0, 1, 7, 0, 6
+};
+
+static const char _tsdp_machine_parser_header_M_range_lengths[] = {
+ 0, 0, 0, 5, 5, 1, 1, 5,
+ 0, 5, 5, 1, 1, 4, 0, 5
+};
+
+static const char _tsdp_machine_parser_header_M_index_offsets[] = {
+ 0, 0, 2, 5, 16, 27, 29, 33,
+ 43, 45, 55, 65, 67, 70, 82, 83
+};
+
+static const char _tsdp_machine_parser_header_M_indicies[] = {
+ 0, 1, 0, 2, 1, 2, 3, 3,
+ 3, 3, 3, 3, 3, 3, 3, 1,
+ 4, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5, 1, 6, 1, 7, 8, 9,
+ 1, 10, 10, 10, 10, 10, 10, 10,
+ 10, 10, 1, 11, 1, 12, 12, 12,
+ 12, 12, 12, 12, 12, 12, 1, 13,
+ 13, 13, 13, 13, 13, 13, 13, 13,
+ 1, 14, 1, 7, 15, 1, 16, 17,
+ 13, 13, 13, 18, 13, 13, 13, 13,
+ 13, 1, 1, 19, 20, 21, 21, 21,
+ 21, 21, 21, 21, 21, 21, 1, 0
+};
+
+static const char _tsdp_machine_parser_header_M_trans_targs[] = {
+ 2, 0, 3, 4, 5, 4, 6, 7,
+ 11, 6, 13, 14, 15, 13, 12, 12,
+ 8, 9, 10, 8, 9, 15
+};
+
+static const char _tsdp_machine_parser_header_M_trans_actions[] = {
+ 0, 0, 0, 1, 3, 0, 1, 5,
+ 5, 0, 1, 0, 1, 0, 1, 0,
+ 7, 7, 0, 9, 9, 0
+};
+
+static const char _tsdp_machine_parser_header_M_eof_actions[] = {
+ 0, 0, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 7, 0, 9
+};
+
+static const int tsdp_machine_parser_header_M_start = 1;
+static const int tsdp_machine_parser_header_M_first_final = 13;
+static const int tsdp_machine_parser_header_M_error = 0;
+
+static const int tsdp_machine_parser_header_M_en_main = 1;
+
+
+/* #line 224 "./ragel/tsdp_parser_header_M.rl" */
+
+/* #line 273 "./src/headers/tsdp_header_M.c" */
+ {
+ cs = tsdp_machine_parser_header_M_start;
+ }
+
+/* #line 225 "./ragel/tsdp_parser_header_M.rl" */
+
+/* #line 280 "./src/headers/tsdp_header_M.c" */
+ {
+ int _klen;
+ unsigned int _trans;
+ const char *_acts;
+ unsigned int _nacts;
+ const char *_keys;
+
+ if ( p == pe )
+ goto _test_eof;
+ if ( cs == 0 )
+ goto _out;
+_resume:
+ _keys = _tsdp_machine_parser_header_M_trans_keys + _tsdp_machine_parser_header_M_key_offsets[cs];
+ _trans = _tsdp_machine_parser_header_M_index_offsets[cs];
+
+ _klen = _tsdp_machine_parser_header_M_single_lengths[cs];
+ if ( _klen > 0 ) {
+ const char *_lower = _keys;
+ const char *_mid;
+ const char *_upper = _keys + _klen - 1;
+ while (1) {
+ if ( _upper < _lower )
+ break;
+
+ _mid = _lower + ((_upper-_lower) >> 1);
+ if ( (*p) < *_mid )
+ _upper = _mid - 1;
+ else if ( (*p) > *_mid )
+ _lower = _mid + 1;
+ else {
+ _trans += (_mid - _keys);
+ goto _match;
+ }
+ }
+ _keys += _klen;
+ _trans += _klen;
+ }
+
+ _klen = _tsdp_machine_parser_header_M_range_lengths[cs];
+ if ( _klen > 0 ) {
+ const char *_lower = _keys;
+ const char *_mid;
+ const char *_upper = _keys + (_klen<<1) - 2;
+ while (1) {
+ if ( _upper < _lower )
+ break;
+
+ _mid = _lower + (((_upper-_lower) >> 1) & ~1);
+ if ( (*p) < _mid[0] )
+ _upper = _mid - 2;
+ else if ( (*p) > _mid[1] )
+ _lower = _mid + 2;
+ else {
+ _trans += ((_mid - _keys)>>1);
+ goto _match;
+ }
+ }
+ _trans += _klen;
+ }
+
+_match:
+ _trans = _tsdp_machine_parser_header_M_indicies[_trans];
+ cs = _tsdp_machine_parser_header_M_trans_targs[_trans];
+
+ if ( _tsdp_machine_parser_header_M_trans_actions[_trans] == 0 )
+ goto _again;
+
+ _acts = _tsdp_machine_parser_header_M_actions + _tsdp_machine_parser_header_M_trans_actions[_trans];
+ _nacts = (unsigned int) *_acts++;
+ while ( _nacts-- > 0 )
+ {
+ switch ( *_acts++ )
+ {
+ case 0:
+/* #line 48 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ tag_start = p;
+ }
+ break;
+ case 1:
+/* #line 52 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_SET_STRING(hdr_M->media);
+ }
+ break;
+ case 2:
+/* #line 56 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_SET_UINT(hdr_M->port);
+ }
+ break;
+ case 3:
+/* #line 64 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_SET_STRING(hdr_M->proto);
+ }
+ break;
+ case 4:
+/* #line 68 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_ADD_STRING(hdr_M->FMTs);
+ }
+ break;
+/* #line 384 "./src/headers/tsdp_header_M.c" */
+ }
+ }
+
+_again:
+ if ( cs == 0 )
+ goto _out;
+ if ( ++p != pe )
+ goto _resume;
+ _test_eof: {}
+ if ( p == eof )
+ {
+ const char *__acts = _tsdp_machine_parser_header_M_actions + _tsdp_machine_parser_header_M_eof_actions[cs];
+ unsigned int __nacts = (unsigned int) *__acts++;
+ while ( __nacts-- > 0 ) {
+ switch ( *__acts++ ) {
+ case 3:
+/* #line 64 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_SET_STRING(hdr_M->proto);
+ }
+ break;
+ case 4:
+/* #line 68 "./ragel/tsdp_parser_header_M.rl" */
+ {
+ TSK_PARSER_ADD_STRING(hdr_M->FMTs);
+ }
+ break;
+/* #line 412 "./src/headers/tsdp_header_M.c" */
+ }
+ }
+ }
+
+ _out: {}
+ }
+
+/* #line 226 "./ragel/tsdp_parser_header_M.rl" */
+
+ if( cs <
+/* #line 423 "./src/headers/tsdp_header_M.c" */
+13
+/* #line 227 "./ragel/tsdp_parser_header_M.rl" */
+ ){
+ TSK_DEBUG_ERROR("Failed to parse \"m=\" header.");
+ TSK_OBJECT_SAFE_FREE(hdr_M);
+ }
+
+ return hdr_M;
+}
+
+
+
+int tsdp_header_M_add(tsdp_header_M_t* self, const tsdp_header_t* header)
+{
+ if(!self || !header){
+ return -1;
+ }
+
+ switch(header->type){
+ case tsdp_htype_I:
+ {
+ TSK_OBJECT_SAFE_FREE(self->I);
+ self->I = tsk_object_ref((void*)header);
+ break;
+ }
+ case tsdp_htype_C:
+ {
+ TSK_OBJECT_SAFE_FREE(self->C);
+ self->C = tsk_object_ref((void*)header);
+ break;
+ }
+ case tsdp_htype_B:
+ {
+ tsdp_header_t* B = tsk_object_ref((void*)header);
+ if(!self->Bandwidths){
+ self->Bandwidths = tsk_list_create();
+ }
+ tsk_list_push_back_data(self->Bandwidths, (void**)&B);
+ break;
+ }
+ case tsdp_htype_K:
+ {
+ TSK_OBJECT_SAFE_FREE(self->K);
+ self->K = tsk_object_ref((void*)header);
+ break;
+ }
+ case tsdp_htype_A:
+ {
+ tsdp_header_t* A = tsk_object_ref((void*)header);
+ if(!self->Attributes){
+ self->Attributes = tsk_list_create();
+ }
+ tsk_list_push_back_data(self->Attributes, (void**)&A);
+ break;
+ }
+ }
+
+ return 0;
+}
+
+int tsdp_header_M_add_headers(tsdp_header_M_t* self, ...)
+{
+ const tsk_object_def_t* objdef;
+ tsdp_header_t *header;
+ tsdp_fmt_t* fmt;
+ va_list ap;
+
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ va_start(ap, self);
+ while((objdef = va_arg(ap, const tsk_object_def_t*))){
+ if(objdef == tsdp_fmt_def_t){
+ if((fmt = tsk_object_new_2(objdef, &ap))){
+ tsk_list_push_back_data(self->FMTs, (void**)&fmt);
+ }
+ }
+ else{
+ if((header = tsk_object_new_2(objdef, &ap))){
+ tsdp_header_M_add(self, header);
+ TSK_OBJECT_SAFE_FREE(header);
+ }
+ }
+ }
+ va_end(ap);
+
+ return 0;
+}
+
+int tsdp_header_M_add_headers_2(tsdp_header_M_t* self, const tsdp_headers_L_t* headers)
+{
+ const tsk_list_item_t* item;
+
+ if(!self || !headers){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ tsk_list_foreach(item, headers){
+ tsdp_header_M_add(self, item->data);
+ }
+
+ return 0;
+}
+
+int tsdp_header_M_add_fmt(tsdp_header_M_t* self, const char* fmt)
+{
+ tsdp_fmt_t* _fmt;
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ if((_fmt = tsdp_fmt_create(fmt))){
+ tsk_list_push_back_data(self->FMTs, (void**)&_fmt);
+ return 0;
+ }
+ else{
+ TSK_DEBUG_ERROR("Failed to create fmt object");
+ return -2;
+ }
+}
+
+const tsdp_header_A_t* tsdp_header_M_findA_at(const tsdp_header_M_t* self, const char* field, tsk_size_t index)
+{
+ const tsk_list_item_t *item;
+ tsk_size_t pos = 0;
+ const tsdp_header_A_t* A;
+
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_null;
+ }
+
+ tsk_list_foreach(item, self->Attributes){
+ if(!(A = item->data)){
+ continue;
+ }
+
+ if(tsk_strequals(TSDP_HEADER_A(item->data)->field, field)){
+ if(pos++ >= index){
+ return A;
+ }
+ }
+ }
+
+ return tsk_null;
+}
+
+const tsdp_header_A_t* tsdp_header_M_findA(const tsdp_header_M_t* self, const char* field)
+{
+ return tsdp_header_M_findA_at(self, field, 0);
+}
+
+char* tsdp_header_M_get_rtpmap(const tsdp_header_M_t* self, const char* fmt)
+{
+ char *rtpmap = tsk_null; /* e.g. AMR-WB/16000 */
+ tsk_size_t i = 0, fmt_len, A_len;
+ int indexof;
+ const tsdp_header_A_t* A;
+
+ fmt_len = tsk_strlen(fmt);
+ if(!self || !fmt_len || fmt_len > 3/*'0-255' or '*'*/){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_null;
+ }
+
+ /* find "a=rtpmap" */
+ while((A = tsdp_header_M_findA_at(self, "rtpmap", i++))){
+ /* A->value would be: "98 AMR-WB/16000" */
+ if((A_len = tsk_strlen(A->value)) < (fmt_len + 1/*space*/)){
+ continue;
+ }
+ if((indexof = tsk_strindexOf(A->value, A_len, fmt)) == 0 && (A->value[fmt_len] == ' ')){
+ rtpmap = tsk_strndup(&A->value[fmt_len+1], (A_len-(fmt_len+1)));
+ break;
+ }
+ }
+ return rtpmap;
+}
+
+char* tsdp_header_M_get_fmtp(const tsdp_header_M_t* self, const char* fmt)
+{
+ char *fmtp = tsk_null; /* e.g. octet-align=1 */
+ tsk_size_t i = 0, fmt_len, A_len;
+ int indexof;
+ const tsdp_header_A_t* A;
+
+ fmt_len = tsk_strlen(fmt);
+ if(!self || !fmt_len || fmt_len > 3/*'0-255' or '*'*/){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_null;
+ }
+
+ /* find "a=fmtp" */
+ while((A = tsdp_header_M_findA_at(self, "fmtp", i++))){
+ /* A->value would be: "98 octet-align=1" */
+ if((A_len = tsk_strlen(A->value)) < (fmt_len + 1/*space*/)){
+ continue;
+ }
+ if((indexof = tsk_strindexOf(A->value, A_len, fmt)) == 0 && (A->value[fmt_len] == ' ')){
+ fmtp = tsk_strndup(&A->value[fmt_len+1], (A_len-(fmt_len+1)));
+ break;
+ }
+ }
+ return fmtp;
+}
+
+/* as per 3GPP TS 34.610 */
+int tsdp_header_M_hold(tsdp_header_M_t* self, tsk_bool_t local)
+{
+ const tsdp_header_A_t* a;
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ if((a = tsdp_header_M_findA(self, local ? "recvonly" : "sendonly"))){
+ // an "inactive" SDP attribute if the stream was previously set to "recvonly" media stream
+ tsk_strupdate(&(TSDP_HEADER_A(a)->field), local ? "inactive" : "recvonly");
+ }
+ else if((a = tsdp_header_M_findA(self, "sendrecv"))){
+ // a "sendonly" SDP attribute if the stream was previously set to "sendrecv" media stream
+ tsk_strupdate(&(TSDP_HEADER_A(a)->field), local ? "sendonly" : "recvonly");
+ }
+ else{
+ // default value is sendrecv. hold on default --> sendonly
+ if(!(a = tsdp_header_M_findA(self, local ? "sendonly" : "recvonly")) && !(a = tsdp_header_M_findA(self, "inactive"))){
+ tsdp_header_A_t* newA;
+ if((newA = tsdp_header_A_create(local ? "sendonly" : "recvonly", tsk_null))){
+ tsdp_header_M_add(self, TSDP_HEADER_CONST(newA));
+ TSK_OBJECT_SAFE_FREE(newA);
+ }
+ }
+ }
+ return 0;
+}
+
+tsk_bool_t tsdp_header_M_is_held(const tsdp_header_M_t* self, tsk_bool_t local)
+{
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return tsk_false;
+ }
+
+ /* both cases */
+ if(tsdp_header_M_findA(self, "inactive")){
+ return tsk_true;
+ }
+
+ if(local){
+ return tsdp_header_M_findA(self, "recvonly") ? tsk_true : tsk_false;
+ }
+ else{
+ return tsdp_header_M_findA(self, "sendonly") ? tsk_true : tsk_false;
+ }
+}
+
+/* as per 3GPP TS 34.610 */
+int tsdp_header_M_resume(tsdp_header_M_t* self, tsk_bool_t local)
+{
+ const tsdp_header_A_t* a;
+ if(!self){
+ TSK_DEBUG_ERROR("Invalid parameter");
+ return -1;
+ }
+
+ if((a = tsdp_header_M_findA(self, "inactive"))){
+ // a "recvonly" SDP attribute if the stream was previously an inactive media stream
+ tsk_strupdate(&(TSDP_HEADER_A(a)->field), local ? "recvonly" : "sendonly");
+ }
+ else if((a = tsdp_header_M_findA(self, local ? "sendonly" : "recvonly"))){
+ // a "sendrecv" SDP attribute if the stream was previously a sendonly media stream, or the attribute may be omitted, since sendrecv is the default
+ tsk_strupdate(&(TSDP_HEADER_A(a)->field), "sendrecv");
+ }
+ return 0;
+}
+
+
+//
+//int tsdp_header_M_set(tsdp_header_M_t* self, ...)
+//{
+// int ret = -1;
+// va_list params;
+// int type;
+//
+// va_start(params, self);
+//
+// if(!m){
+// goto bail;
+// }
+//
+// while((type=va_arg(params, int))){
+// switch(type){
+// case 0x01: /* FMT */
+// {
+// tsk_string_t* fmt = tsk_string_create(va_arg(values, const char *));
+// if(fmt){
+// tsk_list_push_back_data(sefl->FMTs, (void**)&fmt);
+// }
+// break;
+// }
+// case 0x02: /* A */
+// {
+// tsdp_header_A_t* A = tsdp_header_A_create(va_arg(values, const char *), va_arg(values, const char *));
+// if(A){
+// if(!M->Attributes){
+// M->Attributes = tsk_list_create();
+// }
+// tsk_list_push_back_data(M->Attributes, (void**)&A);
+// }
+// break;
+// }
+// }
+// }
+//
+//bail:
+// va_end(params);
+// return ret;
+//}
+
+
+
+//========================================================
+// M header object definition
+//
+
+static tsk_object_t* tsdp_header_M_ctor(tsk_object_t *self, va_list * app)
+{
+ tsdp_header_M_t *M = self;
+ if(M){
+ TSDP_HEADER(M)->type = tsdp_htype_M;
+ TSDP_HEADER(M)->tostring = tsdp_header_M_tostring;
+ TSDP_HEADER(M)->clone = tsdp_header_M_clone;
+ TSDP_HEADER(M)->rank = TSDP_HTYPE_M_RANK;
+
+ M->FMTs = tsk_list_create(); // Because there is at least one fmt.
+
+ M->media = tsk_strdup(va_arg(*app, const char*));
+ M->port = va_arg(*app, uint32_t);
+ M->proto = tsk_strdup(va_arg(*app, const char*));
+ }
+ else{
+ TSK_DEBUG_ERROR("Failed to create new M header.");
+ }
+ return self;
+}
+
+static tsk_object_t* tsdp_header_M_dtor(tsk_object_t *self)
+{
+ tsdp_header_M_t *M = self;
+ if(M){
+ TSK_FREE(M->media);
+ TSK_FREE(M->proto);
+ TSK_OBJECT_SAFE_FREE(M->FMTs);
+
+ TSK_OBJECT_SAFE_FREE(M->I);
+ TSK_OBJECT_SAFE_FREE(M->C);
+ TSK_OBJECT_SAFE_FREE(M->Bandwidths);
+ TSK_OBJECT_SAFE_FREE(M->K);
+ TSK_OBJECT_SAFE_FREE(M->Attributes);
+ }
+ else{
+ TSK_DEBUG_ERROR("Null M header.");
+ }
+
+ return self;
+}
+static int tsdp_header_M_cmp(const tsk_object_t *obj1, const tsk_object_t *obj2)
+{
+ if(obj1 && obj2){
+ return tsdp_header_rank_cmp(obj1, obj2);
+ }
+ else{
+ return -1;
+ }
+}
+
+static const tsk_object_def_t tsdp_header_M_def_s =
+{
+ sizeof(tsdp_header_M_t),
+ tsdp_header_M_ctor,
+ tsdp_header_M_dtor,
+ tsdp_header_M_cmp
+};
+
+const tsk_object_def_t *tsdp_header_M_def_t = &tsdp_header_M_def_s;
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