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- /*
- * RTP Packetization of MPEG-4 Audio (RFC 3016)
- * Copyright (c) 2011 Juan Carlos Rodriguez <ing.juancarlosrodriguez@hotmail.com>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version.
- *
- * Libav 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- */
- #include "avformat.h"
- #include "rtpenc.h"
- void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size)
- {
- /* MP4A-LATM
- * The RTP payload format specification is described in RFC 3016
- * The encoding specifications are provided in ISO/IEC 14496-3 */
- RTPMuxContext *s = s1->priv_data;
- int header_size;
- int offset = 0;
- int len = 0;
- /* skip ADTS header, if present */
- if ((s1->streams[0]->codec->extradata_size) == 0) {
- size -= 7;
- buff += 7;
- }
- /* PayloadLengthInfo() */
- header_size = size/0xFF + 1;
- memset(s->buf, 0xFF, header_size - 1);
- s->buf[header_size - 1] = size % 0xFF;
- s->timestamp = s->cur_timestamp;
- /* PayloadMux() */
- while (size > 0) {
- len = FFMIN(size, s->max_payload_size - (!offset ? header_size : 0));
- size -= len;
- if (!offset) {
- memcpy(s->buf + header_size, buff, len);
- ff_rtp_send_data(s1, s->buf, header_size + len, !size);
- } else {
- ff_rtp_send_data(s1, buff + offset, len, !size);
- }
- offset += len;
- }
- }
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