406 lines
21 KiB
C
406 lines
21 KiB
C
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/*
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* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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* Copyright (C) 2005-2014, Anthony Minessale II <anthm@freeswitch.org>
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*
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* Version: MPL 1.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
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*
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* The Initial Developer of the Original Code is
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* Anthony Minessale II <anthm@freeswitch.org>
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* Portions created by the Initial Developer are Copyright (C)
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Anthony Minessale II <anthm@freeswitch.org>
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*
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* switch_core_media.c -- Core Media
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*
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*/
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#ifndef SWITCH_CORE_MEDIA_H
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#define SWITCH_CORE_MEDIA_H
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#include <switch.h>
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#include <switch_msrp.h>
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SWITCH_BEGIN_EXTERN_C
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#define SWITCH_MAX_CAND_ACL 25
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#define SWITCH_NO_CRYPTO_TAG -1
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typedef enum {
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DTMF_AUTO,
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DTMF_2833,
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DTMF_INFO,
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DTMF_NONE
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} switch_core_media_dtmf_t;
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typedef enum {
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SM_NDLB_ALLOW_BAD_IANANAME = (1 << 0),
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SM_NDLB_ALLOW_NONDUP_SDP = (1 << 1),
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SM_NDLB_ALLOW_CRYPTO_IN_AVP = (1 << 2),
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SM_NDLB_DISABLE_SRTP_AUTH = (1 << 3),
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SM_NDLB_SENDRECV_IN_SESSION = (1 << 4),
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SM_NDLB_NEVER_PATCH_REINVITE = (1 << 5)
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} switch_core_media_NDLB_t;
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typedef enum {
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SCMF_RUNNING,
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SCMF_DISABLE_TRANSCODING,
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SCMF_AUTOFIX_TIMING,
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SCMF_CODEC_GREEDY,
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SCMF_CODEC_SCROOGE,
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SCMF_DISABLE_HOLD,
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SCMF_SUPPRESS_CNG,
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SCMF_DISABLE_RTP_AUTOADJ,
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SCMF_PASS_RFC2833,
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SCMF_AUTOFLUSH,
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SCMF_REWRITE_TIMESTAMPS,
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SCMF_RTP_AUTOFLUSH_DURING_BRIDGE,
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SCMF_MULTI_ANSWER_AUDIO,
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SCMF_MULTI_ANSWER_VIDEO,
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SCMF_RECV_SDP,
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SCMF_MAX
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} switch_core_media_flag_t;
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struct switch_media_handle_s;
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typedef enum {
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STUN_FLAG_SET = (1 << 0),
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STUN_FLAG_PING = (1 << 1),
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STUN_FLAG_FUNNY = (1 << 2)
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} STUNFLAGS;
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typedef enum {
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VAD_IN = (1 << 0),
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VAD_OUT = (1 << 1)
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} switch_core_media_vflag_t;
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typedef struct switch_core_media_params_s {
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uint32_t rtp_timeout_sec;
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uint32_t rtp_hold_timeout_sec;
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uint32_t dtmf_delay;
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uint32_t codec_flags;
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switch_core_media_NDLB_t ndlb;
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switch_rtp_bug_flag_t auto_rtp_bugs;
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char *inbound_codec_string;
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char *outbound_codec_string;
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char *timer_name;
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char *remote_sdp_str;
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char *early_sdp;
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char *local_sdp_str;
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char *last_sdp_str;
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char *last_sdp_response;
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char *prev_sdp_str;
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char *prev_sdp_response;
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char *stun_ip;
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switch_port_t stun_port;
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uint32_t stun_flags;
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char *jb_msec;
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switch_core_media_vflag_t vflags;
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switch_rtp_bug_flag_t manual_rtp_bugs;
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switch_rtp_bug_flag_t manual_video_rtp_bugs;
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switch_rtp_bug_flag_t manual_text_rtp_bugs;
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char *rtcp_audio_interval_msec;
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char *rtcp_video_interval_msec;
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char *rtcp_text_interval_msec;
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char *extrtpip;
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char *rtpip;
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char *rtpip4;
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char *rtpip6;
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char *remote_ip;
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int remote_port;
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char *extsipip;
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char *local_network;
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char *sipip;
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char *sdp_username;
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switch_payload_t te;
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switch_payload_t recv_te;
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unsigned long te_rate;
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unsigned long cng_rate;
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char *adv_sdp_audio_ip;
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int num_codecs;
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int hold_laps;
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switch_core_media_dtmf_t dtmf_type;
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switch_payload_t cng_pt;
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/* a core_video_thread will be started automatically
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when uses rtp based media,
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external_video_source should be set to SWITCH_TRUE and
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switch_core_session_start_video_thread()
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should be explicitly called to start the video thread
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if uses the media handle for non-rtp based media
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*/
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switch_bool_t external_video_source;
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uint32_t video_key_freq;
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uint32_t video_key_first;
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switch_thread_t *video_write_thread;
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} switch_core_media_params_t;
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static inline const char *switch_media_type2str(switch_media_type_t type)
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{
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switch(type) {
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case SWITCH_MEDIA_TYPE_AUDIO:
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return "audio";
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case SWITCH_MEDIA_TYPE_VIDEO:
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return "video";
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default:
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return "!ERR";
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}
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}
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SWITCH_DECLARE(switch_status_t) switch_media_handle_create(switch_media_handle_t **smhp, switch_core_session_t *session, switch_core_media_params_t *params);
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SWITCH_DECLARE(void) switch_media_handle_destroy(switch_core_session_t *session);
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SWITCH_DECLARE(switch_media_handle_t *) switch_core_session_get_media_handle(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_session_clear_media_handle(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_session_media_handle_ready(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_media_handle_set_media_flag(switch_media_handle_t *smh, switch_core_media_flag_t flag);
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SWITCH_DECLARE(void) switch_media_handle_clear_media_flag(switch_media_handle_t *smh, switch_core_media_flag_t flag);
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SWITCH_DECLARE(int32_t) switch_media_handle_test_media_flag(switch_media_handle_t *smh, switch_core_media_flag_t flag);
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SWITCH_DECLARE(void) switch_media_handle_set_media_flags(switch_media_handle_t *smh, switch_core_media_flag_t flags[]);
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SWITCH_DECLARE(void) switch_core_session_check_outgoing_crypto(switch_core_session_t *session);
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SWITCH_DECLARE(const char *) switch_core_session_local_crypto_key(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(int) switch_core_session_check_incoming_crypto(switch_core_session_t *session,
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const char *varname,
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switch_media_type_t type, const char *crypto, int crypto_tag, switch_sdp_type_t sdp_type);
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SWITCH_DECLARE(uint32_t) switch_core_media_get_video_fps(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_set_rtp_session(switch_core_session_t *session, switch_media_type_t type, switch_rtp_t *rtp_session);
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SWITCH_DECLARE(const char *)switch_core_media_get_codec_string(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_parse_rtp_bugs(switch_rtp_bug_flag_t *flag_pole, const char *str);
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SWITCH_DECLARE(switch_status_t) switch_core_media_add_crypto(switch_core_session_t *session, switch_secure_settings_t *ssec, switch_rtp_crypto_direction_t direction);
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SWITCH_DECLARE(switch_t38_options_t *) switch_core_media_extract_t38_options(switch_core_session_t *session, const char *r_sdp);
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SWITCH_DECLARE(void) switch_core_media_pass_zrtp_hash(switch_core_session_t *session);
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SWITCH_DECLARE(const char *) switch_core_media_get_zrtp_hash(switch_core_session_t *session, switch_media_type_t type, switch_bool_t local);
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SWITCH_DECLARE(void) switch_core_media_pass_zrtp_hash2(switch_core_session_t *aleg_session, switch_core_session_t *bleg_session);
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SWITCH_DECLARE(int) switch_core_media_toggle_hold(switch_core_session_t *session, int sendonly);
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SWITCH_DECLARE(void) switch_core_media_reset_t38(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_copy_t38_options(switch_t38_options_t *t38_options, switch_core_session_t *session);
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SWITCH_DECLARE(uint8_t) switch_core_media_negotiate_sdp(switch_core_session_t *session, const char *r_sdp, uint8_t *proceed, switch_sdp_type_t sdp_type);
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SWITCH_DECLARE(switch_status_t) switch_core_media_set_video_codec(switch_core_session_t *session, int force);
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SWITCH_DECLARE(switch_status_t) switch_core_media_set_codec(switch_core_session_t *session, int force, uint32_t codec_flags);
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SWITCH_DECLARE(void) switch_core_media_check_video_codecs(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_read_frame(switch_core_session_t *session, switch_frame_t **frame,
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switch_io_flag_t flags, int stream_id, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_media_write_frame(switch_core_session_t *session,
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switch_frame_t *frame, switch_io_flag_t flags, int stream_id, switch_media_type_t type);
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SWITCH_DECLARE(int) switch_core_media_check_nat(switch_media_handle_t *smh, const char *network_ip);
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SWITCH_DECLARE(switch_status_t) switch_core_media_choose_port(switch_core_session_t *session, switch_media_type_t type, int force);
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SWITCH_DECLARE(switch_status_t) switch_core_media_choose_ports(switch_core_session_t *session, switch_bool_t audio, switch_bool_t video);
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SWITCH_DECLARE(void) switch_core_media_check_dtmf_type(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_absorb_sdp(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_proxy_remote_addr(switch_core_session_t *session, const char *sdp_str);
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SWITCH_DECLARE(void) switch_core_media_parse_media_flags(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_deactivate_rtp(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_activate_rtp(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_ext_address_lookup(switch_core_session_t *session, char **ip, switch_port_t *port, const char *sourceip);
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SWITCH_DECLARE(switch_status_t) switch_core_media_process_t38_passthru(switch_core_session_t *session,
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switch_core_session_t *other_session, switch_t38_options_t *t38_options);
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SWITCH_DECLARE(void) switch_core_media_gen_local_sdp(switch_core_session_t *session, switch_sdp_type_t sdp_type,
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const char *ip, switch_port_t port, const char *sr, int force);
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SWITCH_DECLARE(void)switch_core_media_set_local_sdp(switch_core_session_t *session, const char *sdp_str, switch_bool_t dup);
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SWITCH_DECLARE(void) switch_core_media_patch_sdp(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_set_udptl_image_sdp(switch_core_session_t *session, switch_t38_options_t *t38_options, int insist);
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SWITCH_DECLARE(switch_core_media_params_t *) switch_core_media_get_mparams(switch_media_handle_t *smh);
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SWITCH_DECLARE(void) switch_core_media_prepare_codecs(switch_core_session_t *session, switch_bool_t force);
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SWITCH_DECLARE(void) switch_core_media_start_udptl(switch_core_session_t *session, switch_t38_options_t *t38_options);
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SWITCH_DECLARE(void) switch_core_media_hard_mute(switch_core_session_t *session, switch_bool_t on);
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SWITCH_DECLARE(switch_status_t) switch_core_media_receive_message(switch_core_session_t *session, switch_core_session_message_t *msg);
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SWITCH_DECLARE(void) switch_core_media_break(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_media_kill_socket(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_media_queue_rfc2833(switch_core_session_t *session, switch_media_type_t type, const switch_dtmf_t *dtmf);
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SWITCH_DECLARE(switch_status_t) switch_core_media_queue_rfc2833_in(switch_core_session_t *session, switch_media_type_t type, const switch_dtmf_t *dtmf);
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SWITCH_DECLARE(uint8_t) switch_core_media_ready(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_media_set_telephony_event(switch_core_session_t *session, switch_media_type_t type, switch_payload_t te);
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SWITCH_DECLARE(void) switch_core_media_set_telephony_recv_event(switch_core_session_t *session, switch_media_type_t type, switch_payload_t te);
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SWITCH_DECLARE(switch_rtp_stats_t *) switch_core_media_stats(switch_core_session_t *session, switch_media_type_t type, switch_memory_pool_t *pool);
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SWITCH_DECLARE(switch_status_t) switch_core_media_udptl_mode(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_bool_t) switch_core_media_check_udptl_mode(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_media_set_rtp_flag(switch_core_session_t *session, switch_media_type_t type, switch_rtp_flag_t flag);
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SWITCH_DECLARE(void) switch_core_media_clear_rtp_flag(switch_core_session_t *session, switch_media_type_t type, switch_rtp_flag_t flag);
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SWITCH_DECLARE(switch_jb_t *) switch_core_media_get_jb(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_rtp_stats_t *) switch_core_media_get_stats(switch_core_session_t *session, switch_media_type_t type, switch_memory_pool_t *pool);
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SWITCH_DECLARE(void) switch_core_media_set_sdp_codec_string(switch_core_session_t *session, const char *r_sdp, switch_sdp_type_t sdp_type);
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SWITCH_DECLARE(void) switch_core_media_merge_sdp_codec_string(switch_core_session_t *session, const char *r_sdp,
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switch_sdp_type_t sdp_type, const char *codec_string);
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SWITCH_DECLARE(void) switch_core_media_reset_autofix(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_media_check_outgoing_proxy(switch_core_session_t *session, switch_core_session_t *o_session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_codec_chosen(switch_core_session_t *session, switch_media_type_t media);
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SWITCH_DECLARE (void) switch_core_media_recover_session(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_add_ice_acl(switch_core_session_t *session, switch_media_type_t type, const char *acl_name);
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SWITCH_DECLARE(void) switch_core_session_set_ice(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_clear_ice(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_pause(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_resume(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_init(void);
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SWITCH_DECLARE(void) switch_core_media_deinit(void);
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SWITCH_DECLARE(void) switch_core_media_set_stats(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_sync_stats(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_session_wake_video_thread(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_session_clear_crypto(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_session_get_payload_code(switch_core_session_t *session,
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switch_media_type_t type,
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const char *iananame,
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uint32_t rate,
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const char *fmtp_in,
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switch_payload_t *ptP,
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switch_payload_t *recv_ptP,
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char **fmtpP);
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SWITCH_DECLARE(payload_map_t *) switch_core_media_add_payload_map(switch_core_session_t *session,
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switch_media_type_t type,
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const char *name,
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const char *modname,
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const char *fmtp,
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switch_sdp_type_t sdp_type,
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uint32_t pt,
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uint32_t rate,
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uint32_t ptime,
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uint32_t channels,
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uint8_t negotiated);
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SWITCH_DECLARE(switch_status_t) switch_core_media_check_autoadj(switch_core_session_t *session);
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SWITCH_DECLARE(switch_rtp_crypto_key_type_t) switch_core_media_crypto_str2type(const char *str);
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SWITCH_DECLARE(const char *) switch_core_media_crypto_type2str(switch_rtp_crypto_key_type_t type);
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SWITCH_DECLARE(int) switch_core_media_crypto_keysalt_len(switch_rtp_crypto_key_type_t type);
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SWITCH_DECLARE(int) switch_core_media_crypto_salt_len(switch_rtp_crypto_key_type_t type);
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SWITCH_DECLARE(char *) switch_core_media_filter_sdp(const char *sdp, const char *cmd, const char *arg);
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SWITCH_DECLARE(char *) switch_core_media_process_sdp_filter(const char *sdp, const char *cmd_buf, switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_codec_control(switch_core_session_t *session,
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switch_media_type_t mtype,
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switch_io_type_t iotype,
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switch_codec_control_command_t cmd,
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switch_codec_control_type_t ctype,
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void *cmd_data,
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switch_codec_control_type_t atype,
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void *cmd_arg,
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switch_codec_control_type_t *rtype,
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void **ret_data);
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SWITCH_DECLARE(switch_bool_t) switch_core_media_codec_get_cap(switch_core_session_t *session,
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switch_media_type_t mtype,
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switch_codec_flag_t flag);
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#define switch_core_media_gen_key_frame(_session) switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(_session), SWITCH_LOG_DEBUG1, "%s Send KeyFrame\n", switch_core_session_get_name(_session)); \
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switch_core_media_codec_control(_session, SWITCH_MEDIA_TYPE_VIDEO, SWITCH_IO_WRITE, SCC_VIDEO_GEN_KEYFRAME, SCCT_NONE, NULL, SCCT_NONE, NULL, NULL, NULL)
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#define switch_core_media_write_bandwidth(_session, _val) switch_core_media_codec_control(_session, SWITCH_MEDIA_TYPE_VIDEO, SWITCH_IO_WRITE, \
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SCC_VIDEO_BANDWIDTH, SCCT_STRING, _val, SCCT_NONE, NULL, NULL, NULL)
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SWITCH_DECLARE(switch_timer_t *) switch_core_media_get_timer(switch_core_session_t *session, switch_media_type_t mtype);
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SWITCH_DECLARE(void) switch_core_media_start_engine_function(switch_core_session_t *session, switch_media_type_t type, switch_engine_function_t engine_function, void *user_data);
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SWITCH_DECLARE(void) switch_core_media_end_engine_function(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_session_start_video_thread(switch_core_session_t *session);
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SWITCH_DECLARE(int) switch_core_media_check_engine_function(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_session_video_reinit(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_read_lock_unlock(switch_core_session_t *session, switch_media_type_t type, switch_bool_t lock);
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#define switch_core_media_read_lock(_s, _t) switch_core_media_read_lock_unlock(_s, _t, SWITCH_TRUE)
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#define switch_core_media_read_unlock(_s, _t) switch_core_media_read_lock_unlock(_s, _t, SWITCH_FALSE)
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SWITCH_DECLARE(void) switch_core_session_stop_media(switch_core_session_t *session);
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SWITCH_DECLARE(switch_media_flow_t) switch_core_session_media_flow(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_media_get_vid_params(switch_core_session_t *session, switch_vid_params_t *vid_params);
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SWITCH_DECLARE(void) switch_core_session_write_blank_video(switch_core_session_t *session, uint32_t ms);
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SWITCH_DECLARE(switch_status_t) switch_core_media_lock_video_file(switch_core_session_t *session, switch_rw_t rw);
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SWITCH_DECLARE(switch_status_t) switch_core_media_unlock_video_file(switch_core_session_t *session, switch_rw_t rw);
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SWITCH_DECLARE(switch_status_t) switch_core_media_set_video_file(switch_core_session_t *session, switch_file_handle_t *fh, switch_rw_t rw);
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SWITCH_DECLARE(switch_file_handle_t *) switch_core_media_get_video_file(switch_core_session_t *session, switch_rw_t rw);
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SWITCH_DECLARE(switch_bool_t) switch_core_session_in_video_thread(switch_core_session_t *session);
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SWITCH_DECLARE(switch_bool_t) switch_core_media_check_dtls(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_media_set_outgoing_bitrate(switch_core_session_t *session, switch_media_type_t type, uint32_t bitrate);
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SWITCH_DECLARE(uint32_t) switch_core_media_get_orig_bitrate(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(void) switch_core_media_set_media_bw_mult(switch_core_session_t *session, float mult);
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SWITCH_DECLARE(float) switch_core_media_get_media_bw_mult(switch_core_session_t *session);
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SWITCH_DECLARE(switch_status_t) switch_core_media_reset_jb(switch_core_session_t *session, switch_media_type_t type);
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SWITCH_DECLARE(switch_status_t) switch_core_session_wait_for_video_input_params(switch_core_session_t *session, uint32_t timeout_ms);
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SWITCH_DECLARE(switch_status_t) switch_core_session_set_text_read_callback(switch_core_session_t *session,
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switch_core_text_thread_callback_func_t func, void *user_data);
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SWITCH_DECLARE(switch_status_t) switch_core_session_text_read_callback(switch_core_session_t *session, switch_frame_t *frame);
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SWITCH_DECLARE(switch_status_t) switch_core_session_read_text_frame(switch_core_session_t *session, switch_frame_t **frame, switch_io_flag_t flags,
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int stream_id);
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SWITCH_DECLARE(switch_status_t) switch_core_session_write_text_frame(switch_core_session_t *session, switch_frame_t *frame, switch_io_flag_t flags,
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int stream_id);
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SWITCH_DECLARE(switch_status_t) switch_rtp_text_factory_create(switch_rtp_text_factory_t **tfP, switch_memory_pool_t *pool);
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SWITCH_DECLARE(switch_status_t) switch_rtp_text_factory_destroy(switch_rtp_text_factory_t **tfP);
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SWITCH_DECLARE(switch_status_t) switch_core_session_print(switch_core_session_t *session, const char *data);
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SWITCH_DECLARE(switch_status_t) switch_core_session_printf(switch_core_session_t *session, const char *fmt, ...);
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SWITCH_DECLARE(switch_msrp_session_t *) switch_core_media_get_msrp_session(switch_core_session_t *session);
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SWITCH_DECLARE(void) switch_core_media_set_smode(switch_core_session_t *session, switch_media_type_t type, switch_media_flow_t smode, switch_sdp_type_t sdp_type);
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SWITCH_END_EXTERN_C
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#endif
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/* For Emacs:
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* Local Variables:
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* mode:c
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* indent-tabs-mode:t
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* tab-width:4
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* c-basic-offset:4
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* End:
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* For VIM:
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* vim:set softtabstop=4 shiftwidth=4 tabstop=4 noet:
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*/
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