diff options
Diffstat (limited to 'ffmpeg/libavformat/rtp.c')
| -rw-r--r-- | ffmpeg/libavformat/rtp.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/ffmpeg/libavformat/rtp.c b/ffmpeg/libavformat/rtp.c deleted file mode 100644 index 4d41350..0000000 --- a/ffmpeg/libavformat/rtp.c +++ /dev/null @@ -1,152 +0,0 @@ -/* - * RTP input/output format - * Copyright (c) 2002 Fabrice Bellard - * - * 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. - * - * FFmpeg 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 FFmpeg; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "libavutil/avstring.h" -#include "libavutil/opt.h" -#include "avformat.h" - -#include "rtp.h" - -/* from http://www.iana.org/assignments/rtp-parameters last updated 05 January 2005 */ -/* payload types >= 96 are dynamic; - * payload types between 72 and 76 are reserved for RTCP conflict avoidance; - * all the other payload types not present in the table are unassigned or - * reserved - */ -static const struct { - int pt; - const char enc_name[6]; - enum AVMediaType codec_type; - enum AVCodecID codec_id; - int clock_rate; - int audio_channels; -} rtp_payload_types[] = { - {0, "PCMU", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_PCM_MULAW, 8000, 1}, - {3, "GSM", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {4, "G723", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_G723_1, 8000, 1}, - {5, "DVI4", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {6, "DVI4", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 16000, 1}, - {7, "LPC", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {8, "PCMA", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_PCM_ALAW, 8000, 1}, - {9, "G722", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_ADPCM_G722, 8000, 1}, - {10, "L16", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_PCM_S16BE, 44100, 2}, - {11, "L16", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_PCM_S16BE, 44100, 1}, - {12, "QCELP", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_QCELP, 8000, 1}, - {13, "CN", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {14, "MPA", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_MP2, -1, -1}, - {14, "MPA", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_MP3, -1, -1}, - {15, "G728", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {16, "DVI4", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 11025, 1}, - {17, "DVI4", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 22050, 1}, - {18, "G729", AVMEDIA_TYPE_AUDIO, AV_CODEC_ID_NONE, 8000, 1}, - {25, "CelB", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_NONE, 90000, -1}, - {26, "JPEG", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MJPEG, 90000, -1}, - {28, "nv", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_NONE, 90000, -1}, - {31, "H261", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H261, 90000, -1}, - {32, "MPV", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG1VIDEO, 90000, -1}, - {32, "MPV", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_MPEG2VIDEO, 90000, -1}, - {33, "MP2T", AVMEDIA_TYPE_DATA, AV_CODEC_ID_MPEG2TS, 90000, -1}, - {34, "H263", AVMEDIA_TYPE_VIDEO, AV_CODEC_ID_H263, 90000, -1}, - {-1, "", AVMEDIA_TYPE_UNKNOWN, AV_CODEC_ID_NONE, -1, -1} -}; - -int ff_rtp_get_codec_info(AVCodecContext *codec, int payload_type) -{ - int i = 0; - - for (i = 0; rtp_payload_types[i].pt >= 0; i++) - if (rtp_payload_types[i].pt == payload_type) { - if (rtp_payload_types[i].codec_id != AV_CODEC_ID_NONE) { - codec->codec_type = rtp_payload_types[i].codec_type; - codec->codec_id = rtp_payload_types[i].codec_id; - if (rtp_payload_types[i].audio_channels > 0) - codec->channels = rtp_payload_types[i].audio_channels; - if (rtp_payload_types[i].clock_rate > 0) - codec->sample_rate = rtp_payload_types[i].clock_rate; - return 0; - } - } - return -1; -} - -int ff_rtp_get_payload_type(AVFormatContext *fmt, - AVCodecContext *codec, int idx) -{ - int i; - AVOutputFormat *ofmt = fmt ? fmt->oformat : NULL; - - /* Was the payload type already specified for the RTP muxer? */ - if (ofmt && ofmt->priv_class && fmt->priv_data) { - int64_t payload_type; - if (av_opt_get_int(fmt->priv_data, "payload_type", 0, &payload_type) >= 0 && - payload_type >= 0) - return (int)payload_type; - } - - /* static payload type */ - for (i = 0; rtp_payload_types[i].pt >= 0; ++i) - if (rtp_payload_types[i].codec_id == codec->codec_id) { - if (codec->codec_id == AV_CODEC_ID_H263 && (!fmt || !fmt->oformat || - !fmt->oformat->priv_class || !fmt->priv_data || - !av_opt_flag_is_set(fmt->priv_data, "rtpflags", "rfc2190"))) - continue; - /* G722 has 8000 as nominal rate even if the sample rate is 16000, - * see section 4.5.2 in RFC 3551. */ - if (codec->codec_id == AV_CODEC_ID_ADPCM_G722 && - codec->sample_rate == 16000 && codec->channels == 1) - return rtp_payload_types[i].pt; - if (codec->codec_type == AVMEDIA_TYPE_AUDIO && - ((rtp_payload_types[i].clock_rate > 0 && - codec->sample_rate != rtp_payload_types[i].clock_rate) || - (rtp_payload_types[i].audio_channels > 0 && - codec->channels != rtp_payload_types[i].audio_channels))) - continue; - return rtp_payload_types[i].pt; - } - - if (idx < 0) - idx = codec->codec_type == AVMEDIA_TYPE_AUDIO; - - /* dynamic payload type */ - return RTP_PT_PRIVATE + idx; -} - -const char *ff_rtp_enc_name(int payload_type) -{ - int i; - - for (i = 0; rtp_payload_types[i].pt >= 0; i++) - if (rtp_payload_types[i].pt == payload_type) - return rtp_payload_types[i].enc_name; - - return ""; -} - -enum AVCodecID ff_rtp_codec_id(const char *buf, enum AVMediaType codec_type) -{ - int i; - - for (i = 0; rtp_payload_types[i].pt >= 0; i++) - if (!av_strcasecmp(buf, rtp_payload_types[i].enc_name) && (codec_type == rtp_payload_types[i].codec_type)) - return rtp_payload_types[i].codec_id; - - return AV_CODEC_ID_NONE; -} |