Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4349 | Serge | 1 | /* |
| 2 | * RTP muxer chaining code |
||
| 3 | * Copyright (c) 2010 Martin Storsjo |
||
| 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 "avio_internal.h" |
||
| 24 | #include "rtpenc_chain.h" |
||
| 25 | #include "rtp.h" |
||
| 26 | #include "libavutil/opt.h" |
||
| 27 | |||
| 28 | int ff_rtp_chain_mux_open(AVFormatContext **out, AVFormatContext *s, |
||
| 29 | AVStream *st, URLContext *handle, int packet_size, |
||
| 30 | int idx) |
||
| 31 | { |
||
| 32 | AVFormatContext *rtpctx = NULL; |
||
| 33 | int ret; |
||
| 34 | AVOutputFormat *rtp_format = av_guess_format("rtp", NULL, NULL); |
||
| 35 | uint8_t *rtpflags; |
||
| 36 | AVDictionary *opts = NULL; |
||
| 37 | |||
| 38 | if (!rtp_format) { |
||
| 39 | ret = AVERROR(ENOSYS); |
||
| 40 | goto fail; |
||
| 41 | } |
||
| 42 | |||
| 43 | /* Allocate an AVFormatContext for each output stream */ |
||
| 44 | rtpctx = avformat_alloc_context(); |
||
| 45 | if (!rtpctx) { |
||
| 46 | ret = AVERROR(ENOMEM); |
||
| 47 | goto fail; |
||
| 48 | } |
||
| 49 | |||
| 50 | rtpctx->oformat = rtp_format; |
||
| 51 | if (!avformat_new_stream(rtpctx, NULL)) { |
||
| 52 | ret = AVERROR(ENOMEM); |
||
| 53 | goto fail; |
||
| 54 | } |
||
| 55 | /* Pass the interrupt callback on */ |
||
| 56 | rtpctx->interrupt_callback = s->interrupt_callback; |
||
| 57 | /* Copy the max delay setting; the rtp muxer reads this. */ |
||
| 58 | rtpctx->max_delay = s->max_delay; |
||
| 59 | /* Copy other stream parameters. */ |
||
| 60 | rtpctx->streams[0]->sample_aspect_ratio = st->sample_aspect_ratio; |
||
| 61 | rtpctx->flags |= s->flags & AVFMT_FLAG_MP4A_LATM; |
||
| 62 | |||
| 63 | /* Get the payload type from the codec */ |
||
| 64 | if (st->id < RTP_PT_PRIVATE) |
||
| 65 | rtpctx->streams[0]->id = |
||
| 66 | ff_rtp_get_payload_type(s, st->codec, idx); |
||
| 67 | else |
||
| 68 | rtpctx->streams[0]->id = st->id; |
||
| 69 | |||
| 70 | |||
| 71 | if (av_opt_get(s, "rtpflags", AV_OPT_SEARCH_CHILDREN, &rtpflags) >= 0) |
||
| 72 | av_dict_set(&opts, "rtpflags", rtpflags, AV_DICT_DONT_STRDUP_VAL); |
||
| 73 | |||
| 74 | /* Set the synchronized start time. */ |
||
| 75 | rtpctx->start_time_realtime = s->start_time_realtime; |
||
| 76 | |||
| 77 | avcodec_copy_context(rtpctx->streams[0]->codec, st->codec); |
||
| 78 | |||
| 79 | if (handle) { |
||
| 80 | ret = ffio_fdopen(&rtpctx->pb, handle); |
||
| 81 | if (ret < 0) |
||
| 82 | ffurl_close(handle); |
||
| 83 | } else |
||
| 84 | ret = ffio_open_dyn_packet_buf(&rtpctx->pb, packet_size); |
||
| 85 | if (!ret) |
||
| 86 | ret = avformat_write_header(rtpctx, &opts); |
||
| 87 | av_dict_free(&opts); |
||
| 88 | |||
| 89 | if (ret) { |
||
| 90 | if (handle && rtpctx->pb) { |
||
| 91 | avio_close(rtpctx->pb); |
||
| 92 | } else if (rtpctx->pb) { |
||
| 93 | uint8_t *ptr; |
||
| 94 | avio_close_dyn_buf(rtpctx->pb, &ptr); |
||
| 95 | av_free(ptr); |
||
| 96 | } |
||
| 97 | avformat_free_context(rtpctx); |
||
| 98 | return ret; |
||
| 99 | } |
||
| 100 | |||
| 101 | *out = rtpctx; |
||
| 102 | return 0; |
||
| 103 | |||
| 104 | fail: |
||
| 105 | av_free(rtpctx); |
||
| 106 | if (handle) |
||
| 107 | ffurl_close(handle); |
||
| 108 | return ret; |
||
| 109 | } |