| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | /* | ||
| 2 | * RTP Packetization of MPEG-4 Audio (RFC 3016) | ||
| 3 | * Copyright (c) 2011 Juan Carlos Rodriguez <ing.juancarlosrodriguez@hotmail.com> | ||
| 4 | * | ||
| 5 | * This file is part of FFmpeg. | ||
| 6 | * | ||
| 7 | * FFmpeg is free software; you can redistribute it and/or | ||
| 8 | * modify it under the terms of the GNU Lesser General Public | ||
| 9 | * License as published by the Free Software Foundation; either | ||
| 10 | * version 2.1 of the License, or (at your option) any later version. | ||
| 11 | * | ||
| 12 | * FFmpeg is distributed in the hope that it will be useful, | ||
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| 15 | * Lesser General Public License for more details. | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU Lesser General Public | ||
| 18 | * License along with FFmpeg; if not, write to the Free Software | ||
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | ||
| 20 | */ | ||
| 21 | |||
| 22 | #include "avformat.h" | ||
| 23 | #include "rtpenc.h" | ||
| 24 | |||
| 25 | ✗ | void ff_rtp_send_latm(AVFormatContext *s1, const uint8_t *buff, int size) | |
| 26 | { | ||
| 27 | /* MP4A-LATM | ||
| 28 | * The RTP payload format specification is described in RFC 3016 | ||
| 29 | * The encoding specifications are provided in ISO/IEC 14496-3 */ | ||
| 30 | |||
| 31 | ✗ | RTPMuxContext *s = s1->priv_data; | |
| 32 | int header_size; | ||
| 33 | ✗ | int offset = 0; | |
| 34 | ✗ | int len = 0; | |
| 35 | |||
| 36 | /* PayloadLengthInfo() */ | ||
| 37 | ✗ | header_size = size/0xFF + 1; | |
| 38 | ✗ | if (header_size >= s->max_payload_size) { | |
| 39 | ✗ | av_log(s1, AV_LOG_ERROR, "LATM length header of %d bytes does not fit " | |
| 40 | "the RTP payload of %d bytes\n", header_size, s->max_payload_size); | ||
| 41 | ✗ | return; | |
| 42 | } | ||
| 43 | ✗ | memset(s->buf, 0xFF, header_size - 1); | |
| 44 | ✗ | s->buf[header_size - 1] = size % 0xFF; | |
| 45 | |||
| 46 | ✗ | s->timestamp = s->cur_timestamp; | |
| 47 | |||
| 48 | /* PayloadMux() */ | ||
| 49 | ✗ | while (size > 0) { | |
| 50 | ✗ | len = FFMIN(size, s->max_payload_size - (!offset ? header_size : 0)); | |
| 51 | ✗ | size -= len; | |
| 52 | ✗ | if (!offset) { | |
| 53 | ✗ | memcpy(s->buf + header_size, buff, len); | |
| 54 | ✗ | ff_rtp_send_data(s1, s->buf, header_size + len, !size); | |
| 55 | } else { | ||
| 56 | ✗ | ff_rtp_send_data(s1, buff + offset, len, !size); | |
| 57 | } | ||
| 58 | ✗ | offset += len; | |
| 59 | } | ||
| 60 | } | ||
| 61 |