diff options
author | Benny Prijono <bennylp@teluu.com> | 2012-03-22 09:56:52 +0000 |
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committer | Benny Prijono <bennylp@teluu.com> | 2012-03-22 09:56:52 +0000 |
commit | ed4644930dd8a74bcf4d4a89298a907643bd5d30 (patch) | |
tree | d2244ba52cc6fe2eb3dff9732a39b9b11eea825f /pjmedia/src/pjmedia/stream.c | |
parent | 5bef8e17b3b0ffcfa59ad195787c956903b81978 (diff) |
Re: #1463 (Third party media support). Tnitial work and it works, tested on Linux. Details:
* add PJSUA_MEDIA_HAS_PJMEDIA macro
* move pjmedia specific implementation in pjsua_media.c and pjsua_call.c into pjsua_aud.c
* add pjsip-apps/src/third_party_media sample containing:
- alt_pjsua_aud.c
- alt_pjsua_vid.c
* moved pjmedia_vid_stream_info_from_sdp() into pjmedia/vid_stream_info.c
* moved pjmedia_stream_info_from_sdp() into pjmedia/stream_info.c
* misc: fixed mips_test.c if codecs are disabled
git-svn-id: http://svn.pjsip.org/repos/pjproject/trunk@3982 74dad513-b988-da41-8d7b-12977e46ad98
Diffstat (limited to 'pjmedia/src/pjmedia/stream.c')
-rw-r--r-- | pjmedia/src/pjmedia/stream.c | 525 |
1 files changed, 0 insertions, 525 deletions
diff --git a/pjmedia/src/pjmedia/stream.c b/pjmedia/src/pjmedia/stream.c index fba0c39b..b5354cd1 100644 --- a/pjmedia/src/pjmedia/stream.c +++ b/pjmedia/src/pjmedia/stream.c @@ -2793,531 +2793,6 @@ PJ_DEF(pj_status_t) pjmedia_stream_set_dtmf_callback(pjmedia_stream *stream, return PJ_SUCCESS; } - -static const pj_str_t ID_AUDIO = { "audio", 5}; -static const pj_str_t ID_IN = { "IN", 2 }; -static const pj_str_t ID_IP4 = { "IP4", 3}; -static const pj_str_t ID_IP6 = { "IP6", 3}; -static const pj_str_t ID_RTP_AVP = { "RTP/AVP", 7 }; -static const pj_str_t ID_RTP_SAVP = { "RTP/SAVP", 8 }; -//static const pj_str_t ID_SDP_NAME = { "pjmedia", 7 }; -static const pj_str_t ID_RTPMAP = { "rtpmap", 6 }; -static const pj_str_t ID_TELEPHONE_EVENT = { "telephone-event", 15 }; - -static const pj_str_t STR_INACTIVE = { "inactive", 8 }; -static const pj_str_t STR_SENDRECV = { "sendrecv", 8 }; -static const pj_str_t STR_SENDONLY = { "sendonly", 8 }; -static const pj_str_t STR_RECVONLY = { "recvonly", 8 }; - - -/* - * Internal function for collecting codec info and param from the SDP media. - */ -static pj_status_t get_audio_codec_info_param(pjmedia_stream_info *si, - pj_pool_t *pool, - pjmedia_codec_mgr *mgr, - const pjmedia_sdp_media *local_m, - const pjmedia_sdp_media *rem_m) -{ - const pjmedia_sdp_attr *attr; - pjmedia_sdp_rtpmap *rtpmap; - unsigned i, fmti, pt = 0; - pj_status_t status; - - /* Find the first codec which is not telephone-event */ - for ( fmti = 0; fmti < local_m->desc.fmt_count; ++fmti ) { - pjmedia_sdp_rtpmap r; - - if ( !pj_isdigit(*local_m->desc.fmt[fmti].ptr) ) - return PJMEDIA_EINVALIDPT; - pt = pj_strtoul(&local_m->desc.fmt[fmti]); - - if (pt < 96) { - /* This is known static PT. Skip rtpmap checking because it is - * optional. */ - break; - } - - attr = pjmedia_sdp_media_find_attr(local_m, &ID_RTPMAP, - &local_m->desc.fmt[fmti]); - if (attr == NULL) - continue; - - status = pjmedia_sdp_attr_get_rtpmap(attr, &r); - if (status != PJ_SUCCESS) - continue; - - if (pj_strcmp(&r.enc_name, &ID_TELEPHONE_EVENT) != 0) - break; - } - if ( fmti >= local_m->desc.fmt_count ) - return PJMEDIA_EINVALIDPT; - - /* Get payload type for receiving direction */ - si->rx_pt = pt; - - /* Get codec info. - * For static payload types, get the info from codec manager. - * For dynamic payload types, MUST get the rtpmap. - */ - if (pt < 96) { - pj_bool_t has_rtpmap; - - rtpmap = NULL; - has_rtpmap = PJ_TRUE; - - attr = pjmedia_sdp_media_find_attr(local_m, &ID_RTPMAP, - &local_m->desc.fmt[fmti]); - if (attr == NULL) { - has_rtpmap = PJ_FALSE; - } - if (attr != NULL) { - status = pjmedia_sdp_attr_to_rtpmap(pool, attr, &rtpmap); - if (status != PJ_SUCCESS) - has_rtpmap = PJ_FALSE; - } - - /* Build codec format info: */ - if (has_rtpmap) { - si->fmt.type = si->type; - si->fmt.pt = pj_strtoul(&local_m->desc.fmt[fmti]); - pj_strdup(pool, &si->fmt.encoding_name, &rtpmap->enc_name); - si->fmt.clock_rate = rtpmap->clock_rate; - -#if defined(PJMEDIA_HANDLE_G722_MPEG_BUG) && (PJMEDIA_HANDLE_G722_MPEG_BUG != 0) - /* The session info should have the actual clock rate, because - * this info is used for calculationg buffer size, etc in stream - */ - if (si->fmt.pt == PJMEDIA_RTP_PT_G722) - si->fmt.clock_rate = 16000; -#endif - - /* For audio codecs, rtpmap parameters denotes the number of - * channels. - */ - if (si->type == PJMEDIA_TYPE_AUDIO && rtpmap->param.slen) { - si->fmt.channel_cnt = (unsigned) pj_strtoul(&rtpmap->param); - } else { - si->fmt.channel_cnt = 1; - } - - } else { - const pjmedia_codec_info *p_info; - - status = pjmedia_codec_mgr_get_codec_info( mgr, pt, &p_info); - if (status != PJ_SUCCESS) - return status; - - pj_memcpy(&si->fmt, p_info, sizeof(pjmedia_codec_info)); - } - - /* For static payload type, pt's are symetric */ - si->tx_pt = pt; - - } else { - pjmedia_codec_id codec_id; - pj_str_t codec_id_st; - const pjmedia_codec_info *p_info; - - attr = pjmedia_sdp_media_find_attr(local_m, &ID_RTPMAP, - &local_m->desc.fmt[fmti]); - if (attr == NULL) - return PJMEDIA_EMISSINGRTPMAP; - - status = pjmedia_sdp_attr_to_rtpmap(pool, attr, &rtpmap); - if (status != PJ_SUCCESS) - return status; - - /* Build codec format info: */ - - si->fmt.type = si->type; - si->fmt.pt = pj_strtoul(&local_m->desc.fmt[fmti]); - si->fmt.encoding_name = rtpmap->enc_name; - si->fmt.clock_rate = rtpmap->clock_rate; - - /* For audio codecs, rtpmap parameters denotes the number of - * channels. - */ - if (si->type == PJMEDIA_TYPE_AUDIO && rtpmap->param.slen) { - si->fmt.channel_cnt = (unsigned) pj_strtoul(&rtpmap->param); - } else { - si->fmt.channel_cnt = 1; - } - - /* Normalize the codec info from codec manager. Note that the - * payload type will be resetted to its default (it might have - * been rewritten by the SDP negotiator to match to the remote - * offer), this is intentional as currently some components may - * prefer (or even require) the default PT in codec info. - */ - pjmedia_codec_info_to_id(&si->fmt, codec_id, sizeof(codec_id)); - - i = 1; - codec_id_st = pj_str(codec_id); - status = pjmedia_codec_mgr_find_codecs_by_id(mgr, &codec_id_st, - &i, &p_info, NULL); - if (status != PJ_SUCCESS) - return status; - - pj_memcpy(&si->fmt, p_info, sizeof(pjmedia_codec_info)); - - /* Determine payload type for outgoing channel, by finding - * dynamic payload type in remote SDP that matches the answer. - */ - si->tx_pt = 0xFFFF; - for (i=0; i<rem_m->desc.fmt_count; ++i) { - unsigned rpt; - pjmedia_sdp_attr *r_attr; - pjmedia_sdp_rtpmap r_rtpmap; - - rpt = pj_strtoul(&rem_m->desc.fmt[i]); - if (rpt < 96) - continue; - - r_attr = pjmedia_sdp_media_find_attr(rem_m, &ID_RTPMAP, - &rem_m->desc.fmt[i]); - if (!r_attr) - continue; - - if (pjmedia_sdp_attr_get_rtpmap(r_attr, &r_rtpmap) != PJ_SUCCESS) - continue; - - if (!pj_stricmp(&rtpmap->enc_name, &r_rtpmap.enc_name) && - rtpmap->clock_rate == r_rtpmap.clock_rate) - { - /* Found matched codec. */ - si->tx_pt = rpt; - - break; - } - } - - if (si->tx_pt == 0xFFFF) - return PJMEDIA_EMISSINGRTPMAP; - } - - - /* Now that we have codec info, get the codec param. */ - si->param = PJ_POOL_ALLOC_T(pool, pjmedia_codec_param); - status = pjmedia_codec_mgr_get_default_param(mgr, &si->fmt, - si->param); - - /* Get remote fmtp for our encoder. */ - pjmedia_stream_info_parse_fmtp(pool, rem_m, si->tx_pt, - &si->param->setting.enc_fmtp); - - /* Get local fmtp for our decoder. */ - pjmedia_stream_info_parse_fmtp(pool, local_m, si->rx_pt, - &si->param->setting.dec_fmtp); - - /* Get the remote ptime for our encoder. */ - attr = pjmedia_sdp_attr_find2(rem_m->attr_count, rem_m->attr, - "ptime", NULL); - if (attr) { - pj_str_t tmp_val = attr->value; - unsigned frm_per_pkt; - - pj_strltrim(&tmp_val); - - /* Round up ptime when the specified is not multiple of frm_ptime */ - frm_per_pkt = (pj_strtoul(&tmp_val) + - si->param->info.frm_ptime/2) / - si->param->info.frm_ptime; - if (frm_per_pkt != 0) { - si->param->setting.frm_per_pkt = (pj_uint8_t)frm_per_pkt; - } - } - - /* Get remote maxptime for our encoder. */ - attr = pjmedia_sdp_attr_find2(rem_m->attr_count, rem_m->attr, - "maxptime", NULL); - if (attr) { - pj_str_t tmp_val = attr->value; - - pj_strltrim(&tmp_val); - si->tx_maxptime = pj_strtoul(&tmp_val); - } - - /* When direction is NONE (it means SDP negotiation has failed) we don't - * need to return a failure here, as returning failure will cause - * the whole SDP to be rejected. See ticket #: - * http:// - * - * Thanks Alain Totouom - */ - if (status != PJ_SUCCESS && si->dir != PJMEDIA_DIR_NONE) - return status; - - - /* Get incomming payload type for telephone-events */ - si->rx_event_pt = -1; - for (i=0; i<local_m->attr_count; ++i) { - pjmedia_sdp_rtpmap r; - - attr = local_m->attr[i]; - if (pj_strcmp(&attr->name, &ID_RTPMAP) != 0) - continue; - if (pjmedia_sdp_attr_get_rtpmap(attr, &r) != PJ_SUCCESS) - continue; - if (pj_strcmp(&r.enc_name, &ID_TELEPHONE_EVENT) == 0) { - si->rx_event_pt = pj_strtoul(&r.pt); - break; - } - } - - /* Get outgoing payload type for telephone-events */ - si->tx_event_pt = -1; - for (i=0; i<rem_m->attr_count; ++i) { - pjmedia_sdp_rtpmap r; - - attr = rem_m->attr[i]; - if (pj_strcmp(&attr->name, &ID_RTPMAP) != 0) - continue; - if (pjmedia_sdp_attr_get_rtpmap(attr, &r) != PJ_SUCCESS) - continue; - if (pj_strcmp(&r.enc_name, &ID_TELEPHONE_EVENT) == 0) { - si->tx_event_pt = pj_strtoul(&r.pt); - break; - } - } - - return PJ_SUCCESS; -} - - - -/* - * Create stream info from SDP media line. - */ -PJ_DEF(pj_status_t) pjmedia_stream_info_from_sdp( - pjmedia_stream_info *si, - pj_pool_t *pool, - pjmedia_endpt *endpt, - const pjmedia_sdp_session *local, - const pjmedia_sdp_session *remote, - unsigned stream_idx) -{ - pjmedia_codec_mgr *mgr; - const pjmedia_sdp_attr *attr; - const pjmedia_sdp_media *local_m; - const pjmedia_sdp_media *rem_m; - const pjmedia_sdp_conn *local_conn; - const pjmedia_sdp_conn *rem_conn; - int rem_af, local_af; - pj_sockaddr local_addr; - pj_status_t status; - - - /* Validate arguments: */ - PJ_ASSERT_RETURN(pool && si && local && remote, PJ_EINVAL); - PJ_ASSERT_RETURN(stream_idx < local->media_count, PJ_EINVAL); - PJ_ASSERT_RETURN(stream_idx < remote->media_count, PJ_EINVAL); - - /* Keep SDP shortcuts */ - local_m = local->media[stream_idx]; - rem_m = remote->media[stream_idx]; - - local_conn = local_m->conn ? local_m->conn : local->conn; - if (local_conn == NULL) - return PJMEDIA_SDP_EMISSINGCONN; - - rem_conn = rem_m->conn ? rem_m->conn : remote->conn; - if (rem_conn == NULL) - return PJMEDIA_SDP_EMISSINGCONN; - - /* Media type must be audio */ - if (pj_stricmp(&local_m->desc.media, &ID_AUDIO) != 0) - return PJMEDIA_EINVALIMEDIATYPE; - - /* Get codec manager. */ - mgr = pjmedia_endpt_get_codec_mgr(endpt); - - /* Reset: */ - - pj_bzero(si, sizeof(*si)); - -#if PJMEDIA_HAS_RTCP_XR && PJMEDIA_STREAM_ENABLE_XR - /* Set default RTCP XR enabled/disabled */ - si->rtcp_xr_enabled = PJ_TRUE; -#endif - - /* Media type: */ - si->type = PJMEDIA_TYPE_AUDIO; - - /* Transport protocol */ - - /* At this point, transport type must be compatible, - * the transport instance will do more validation later. - */ - status = pjmedia_sdp_transport_cmp(&rem_m->desc.transport, - &local_m->desc.transport); - if (status != PJ_SUCCESS) - return PJMEDIA_SDPNEG_EINVANSTP; - - if (pj_stricmp(&local_m->desc.transport, &ID_RTP_AVP) == 0) { - - si->proto = PJMEDIA_TP_PROTO_RTP_AVP; - - } else if (pj_stricmp(&local_m->desc.transport, &ID_RTP_SAVP) == 0) { - - si->proto = PJMEDIA_TP_PROTO_RTP_SAVP; - - } else { - - si->proto = PJMEDIA_TP_PROTO_UNKNOWN; - return PJ_SUCCESS; - } - - - /* Check address family in remote SDP */ - rem_af = pj_AF_UNSPEC(); - if (pj_stricmp(&rem_conn->net_type, &ID_IN)==0) { - if (pj_stricmp(&rem_conn->addr_type, &ID_IP4)==0) { - rem_af = pj_AF_INET(); - } else if (pj_stricmp(&rem_conn->addr_type, &ID_IP6)==0) { - rem_af = pj_AF_INET6(); - } - } - - if (rem_af==pj_AF_UNSPEC()) { - /* Unsupported address family */ - return PJ_EAFNOTSUP; - } - - /* Set remote address: */ - status = pj_sockaddr_init(rem_af, &si->rem_addr, &rem_conn->addr, - rem_m->desc.port); - if (status != PJ_SUCCESS) { - /* Invalid IP address. */ - return PJMEDIA_EINVALIDIP; - } - - /* Check address family of local info */ - local_af = pj_AF_UNSPEC(); - if (pj_stricmp(&local_conn->net_type, &ID_IN)==0) { - if (pj_stricmp(&local_conn->addr_type, &ID_IP4)==0) { - local_af = pj_AF_INET(); - } else if (pj_stricmp(&local_conn->addr_type, &ID_IP6)==0) { - local_af = pj_AF_INET6(); - } - } - - if (local_af==pj_AF_UNSPEC()) { - /* Unsupported address family */ - return PJ_SUCCESS; - } - - /* Set remote address: */ - status = pj_sockaddr_init(local_af, &local_addr, &local_conn->addr, - local_m->desc.port); - if (status != PJ_SUCCESS) { - /* Invalid IP address. */ - return PJMEDIA_EINVALIDIP; - } - - /* Local and remote address family must match */ - if (local_af != rem_af) - return PJ_EAFNOTSUP; - - /* Media direction: */ - - if (local_m->desc.port == 0 || - pj_sockaddr_has_addr(&local_addr)==PJ_FALSE || - pj_sockaddr_has_addr(&si->rem_addr)==PJ_FALSE || - pjmedia_sdp_media_find_attr(local_m, &STR_INACTIVE, NULL)!=NULL) - { - /* Inactive stream. */ - - si->dir = PJMEDIA_DIR_NONE; - - } else if (pjmedia_sdp_media_find_attr(local_m, &STR_SENDONLY, NULL)!=NULL) { - - /* Send only stream. */ - - si->dir = PJMEDIA_DIR_ENCODING; - - } else if (pjmedia_sdp_media_find_attr(local_m, &STR_RECVONLY, NULL)!=NULL) { - - /* Recv only stream. */ - - si->dir = PJMEDIA_DIR_DECODING; - - } else { - - /* Send and receive stream. */ - - si->dir = PJMEDIA_DIR_ENCODING_DECODING; - - } - - /* No need to do anything else if stream is rejected */ - if (local_m->desc.port == 0) { - return PJ_SUCCESS; - } - - /* If "rtcp" attribute is present in the SDP, set the RTCP address - * from that attribute. Otherwise, calculate from RTP address. - */ - attr = pjmedia_sdp_attr_find2(rem_m->attr_count, rem_m->attr, - "rtcp", NULL); - if (attr) { - pjmedia_sdp_rtcp_attr rtcp; - status = pjmedia_sdp_attr_get_rtcp(attr, &rtcp); - if (status == PJ_SUCCESS) { - if (rtcp.addr.slen) { - status = pj_sockaddr_init(rem_af, &si->rem_rtcp, &rtcp.addr, - (pj_uint16_t)rtcp.port); - } else { - pj_sockaddr_init(rem_af, &si->rem_rtcp, NULL, - (pj_uint16_t)rtcp.port); - pj_memcpy(pj_sockaddr_get_addr(&si->rem_rtcp), - pj_sockaddr_get_addr(&si->rem_addr), - pj_sockaddr_get_addr_len(&si->rem_addr)); - } - } - } - - if (!pj_sockaddr_has_addr(&si->rem_rtcp)) { - int rtcp_port; - - pj_memcpy(&si->rem_rtcp, &si->rem_addr, sizeof(pj_sockaddr)); - rtcp_port = pj_sockaddr_get_port(&si->rem_addr) + 1; - pj_sockaddr_set_port(&si->rem_rtcp, (pj_uint16_t)rtcp_port); - } - - - /* Get the payload number for receive channel. */ - /* - Previously we used to rely on fmt[0] being the selected codec, - but some UA sends telephone-event as fmt[0] and this would - cause assert failure below. - - Thanks Chris Hamilton <chamilton .at. cs.dal.ca> for this patch. - - // And codec must be numeric! - if (!pj_isdigit(*local_m->desc.fmt[0].ptr) || - !pj_isdigit(*rem_m->desc.fmt[0].ptr)) - { - return PJMEDIA_EINVALIDPT; - } - - pt = pj_strtoul(&local_m->desc.fmt[0]); - pj_assert(PJMEDIA_RTP_PT_TELEPHONE_EVENTS==0 || - pt != PJMEDIA_RTP_PT_TELEPHONE_EVENTS); - */ - - /* Get codec info and param */ - status = get_audio_codec_info_param(si, pool, mgr, local_m, rem_m); - - /* Leave SSRC to random. */ - si->ssrc = pj_rand(); - - /* Set default jitter buffer parameter. */ - si->jb_init = si->jb_max = si->jb_min_pre = si->jb_max_pre = -1; - - return status; -} - /* * Send RTCP SDES. */ |