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https://github.com/pikvm/ustreamer.git
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78 lines
2.8 KiB
C
78 lines
2.8 KiB
C
/*****************************************************************************
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# #
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# uStreamer - Lightweight and fast MJPEG-HTTP streamer. #
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# #
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# Copyright (C) 2018-2024 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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*****************************************************************************/
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#include "rtpa.h"
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#include <stdlib.h>
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#include <inttypes.h>
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#include "uslibs/types.h"
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#include "uslibs/tools.h"
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us_rtpa_s *us_rtpa_init(us_rtp_callback_f callback) {
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us_rtpa_s *rtpa;
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US_CALLOC(rtpa, 1);
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rtpa->rtp = us_rtp_init();
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us_rtp_assign(rtpa->rtp, US_RTP_OPUS_PAYLOAD, false);
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rtpa->callback = callback;
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return rtpa;
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}
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void us_rtpa_destroy(us_rtpa_s *rtpa) {
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us_rtp_destroy(rtpa->rtp);
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free(rtpa);
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}
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char *us_rtpa_make_sdp(us_rtpa_s *rtpa, bool mic) {
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const uint pl = rtpa->rtp->payload;
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char *sdp;
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US_ASPRINTF(sdp,
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"m=audio 1 RTP/SAVPF %u" RN
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"c=IN IP4 0.0.0.0" RN
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"a=rtpmap:%u OPUS/%u/%u" RN
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"a=fmtp:%u sprop-stereo=1" RN // useinbandfec=1
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"a=rtcp-fb:%u nack" RN
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"a=rtcp-fb:%u nack pli" RN
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"a=rtcp-fb:%u goog-remb" RN
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"a=mid:a" RN
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"a=msid:audio a" RN
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"a=ssrc:%" PRIu32 " cname:ustreamer" RN
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"a=%s" RN,
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pl, pl,
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US_RTP_OPUS_HZ, US_RTP_OPUS_CH,
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pl, pl, pl, pl,
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rtpa->rtp->ssrc,
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(mic ? "sendrecv" : "sendonly")
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);
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return sdp;
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}
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void us_rtpa_wrap(us_rtpa_s *rtpa, const u8 *data, uz size, u32 pts) {
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if (size + US_RTP_HEADER_SIZE <= US_RTP_DATAGRAM_SIZE) {
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us_rtp_write_header(rtpa->rtp, pts, false);
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memcpy(rtpa->rtp->datagram + US_RTP_HEADER_SIZE, data, size);
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rtpa->rtp->used = size + US_RTP_HEADER_SIZE;
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rtpa->callback(rtpa->rtp);
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}
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}
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