diff options
Diffstat (limited to 'pjmedia/src/pjmedia/vid_stream.c')
| -rw-r--r-- | pjmedia/src/pjmedia/vid_stream.c | 363 |
1 files changed, 0 insertions, 363 deletions
diff --git a/pjmedia/src/pjmedia/vid_stream.c b/pjmedia/src/pjmedia/vid_stream.c index 0e3dfb44..64bf0d7f 100644 --- a/pjmedia/src/pjmedia/vid_stream.c +++ b/pjmedia/src/pjmedia/vid_stream.c @@ -22,11 +22,9 @@ #include <pjmedia/rtp.h> #include <pjmedia/rtcp.h> #include <pjmedia/jbuf.h> -#include <pjmedia/sdp_neg.h> #include <pjmedia/stream_common.h> #include <pj/array.h> #include <pj/assert.h> -#include <pj/ctype.h> #include <pj/compat/socket.h> #include <pj/errno.h> #include <pj/ioqueue.h> @@ -1790,367 +1788,6 @@ PJ_DEF(pj_status_t) pjmedia_vid_stream_resume(pjmedia_vid_stream *stream, return PJ_SUCCESS; } - -static const pj_str_t ID_VIDEO = { "video", 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 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_video_codec_info_param(pjmedia_vid_stream_info *si, - pj_pool_t *pool, - pjmedia_vid_codec_mgr *mgr, - const pjmedia_sdp_media *local_m, - const pjmedia_sdp_media *rem_m) -{ - unsigned pt = 0; - const pjmedia_vid_codec_info *p_info; - pj_status_t status; - - pt = pj_strtoul(&local_m->desc.fmt[0]); - - /* Get payload type for receiving direction */ - si->rx_pt = pt; - - /* Get codec info and payload type for transmitting direction. */ - if (pt < 96) { - /* For static payload types, get the codec info from codec manager. */ - status = pjmedia_vid_codec_mgr_get_codec_info(mgr, pt, &p_info); - if (status != PJ_SUCCESS) - return status; - - si->codec_info = *p_info; - - /* Get payload type for transmitting direction. - * For static payload type, pt's are symetric. - */ - si->tx_pt = pt; - } else { - const pjmedia_sdp_attr *attr; - pjmedia_sdp_rtpmap *rtpmap; - pjmedia_codec_id codec_id; - pj_str_t codec_id_st; - unsigned i; - - /* 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) { - if (pjmedia_sdp_neg_fmt_match(NULL, - (pjmedia_sdp_media*)local_m, 0, - (pjmedia_sdp_media*)rem_m, i, 0) == - PJ_SUCCESS) - { - /* Found matched codec. */ - si->tx_pt = pj_strtoul(&rem_m->desc.fmt[i]); - break; - } - } - - if (si->tx_pt == 0xFFFF) - return PJMEDIA_EMISSINGRTPMAP; - - /* For dynamic payload types, get codec name from the rtpmap */ - attr = pjmedia_sdp_media_find_attr(local_m, &ID_RTPMAP, - &local_m->desc.fmt[0]); - if (attr == NULL) - return PJMEDIA_EMISSINGRTPMAP; - - status = pjmedia_sdp_attr_to_rtpmap(pool, attr, &rtpmap); - if (status != PJ_SUCCESS) - return status; - - /* Then get the codec info from the codec manager */ - pj_ansi_snprintf(codec_id, sizeof(codec_id), "%.*s/", - (int)rtpmap->enc_name.slen, rtpmap->enc_name.ptr); - codec_id_st = pj_str(codec_id); - i = 1; - status = pjmedia_vid_codec_mgr_find_codecs_by_id(mgr, &codec_id_st, - &i, &p_info, NULL); - if (status != PJ_SUCCESS) - return status; - - si->codec_info = *p_info; - } - - - /* Request for codec with the correct packing for streaming */ - si->codec_info.packings = PJMEDIA_VID_PACKING_PACKETS; - - /* Now that we have codec info, get the codec param. */ - si->codec_param = PJ_POOL_ALLOC_T(pool, pjmedia_vid_codec_param); - status = pjmedia_vid_codec_mgr_get_default_param(mgr, - &si->codec_info, - si->codec_param); - - /* Adjust encoding bitrate, if higher than remote preference. The remote - * bitrate preference is read from SDP "b=TIAS" line in media level. - */ - if ((si->dir & PJMEDIA_DIR_ENCODING) && rem_m->bandw_count) { - unsigned i, bandw = 0; - - for (i = 0; i < rem_m->bandw_count; ++i) { - const pj_str_t STR_BANDW_MODIFIER_TIAS = { "TIAS", 4 }; - if (!pj_stricmp(&rem_m->bandw[i]->modifier, - &STR_BANDW_MODIFIER_TIAS)) - { - bandw = rem_m->bandw[i]->value; - break; - } - } - - if (bandw) { - pjmedia_video_format_detail *enc_vfd; - enc_vfd = pjmedia_format_get_video_format_detail( - &si->codec_param->enc_fmt, PJ_TRUE); - if (!enc_vfd->avg_bps || enc_vfd->avg_bps > bandw) - enc_vfd->avg_bps = bandw * 3 / 4; - if (!enc_vfd->max_bps || enc_vfd->max_bps > bandw) - enc_vfd->max_bps = bandw; - } - } - - /* Get remote fmtp for our encoder. */ - pjmedia_stream_info_parse_fmtp(pool, rem_m, si->tx_pt, - &si->codec_param->enc_fmtp); - - /* Get local fmtp for our decoder. */ - pjmedia_stream_info_parse_fmtp(pool, local_m, si->rx_pt, - &si->codec_param->dec_fmtp); - - /* 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; - - return PJ_SUCCESS; -} - - - -/* - * Create stream info from SDP media line. - */ -PJ_DEF(pj_status_t) pjmedia_vid_stream_info_from_sdp( - pjmedia_vid_stream_info *si, - pj_pool_t *pool, - pjmedia_endpt *endpt, - const pjmedia_sdp_session *local, - const pjmedia_sdp_session *remote, - unsigned stream_idx) -{ - 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; - - PJ_UNUSED_ARG(endpt); - - /* 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 video */ - if (pj_stricmp(&local_m->desc.media, &ID_VIDEO) != 0) - return PJMEDIA_EINVALIMEDIATYPE; - - - /* Reset: */ - - pj_bzero(si, sizeof(*si)); - - /* Media type: */ - si->type = PJMEDIA_TYPE_VIDEO; - - /* 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 codec info and param */ - status = get_video_codec_info_param(si, pool, NULL, 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; -} - - /* * Force stream to send video keyframe. */ |