/* * RTMP network protocol * Copyright (c) 2010 Howard Chu * * This file is part of Libav. * * Libav 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 */ /** * @file * RTMP protocol based on http://rtmpdump.mplayerhq.hu/ librtmp */ #include "libavutil/mathematics.h" #include "avformat.h" #include "url.h" #include <librtmp/rtmp.h> #include <librtmp/log.h> static void rtmp_log(int level, const char *fmt, va_list args) { switch (level) { default: case RTMP_LOGCRIT: level = AV_LOG_FATAL; break; case RTMP_LOGERROR: level = AV_LOG_ERROR; break; case RTMP_LOGWARNING: level = AV_LOG_WARNING; break; case RTMP_LOGINFO: level = AV_LOG_INFO; break; case RTMP_LOGDEBUG: level = AV_LOG_VERBOSE; break; case RTMP_LOGDEBUG2: level = AV_LOG_DEBUG; break; } av_vlog(NULL, level, fmt, args); av_log(NULL, level, "\n"); } static int rtmp_close(URLContext *s) { RTMP *r = s->priv_data; RTMP_Close(r); av_free(r); return 0; } /** * Open RTMP connection and verify that the stream can be played. * * URL syntax: rtmp://server[:port][/app][/playpath][ keyword=value]... * where 'app' is first one or two directories in the path * (e.g. /ondemand/, /flash/live/, etc.) * and 'playpath' is a file name (the rest of the path, * may be prefixed with "mp4:") * * Additional RTMP library options may be appended as * space-separated key-value pairs. */ static int rtmp_open(URLContext *s, const char *uri, int flags) { RTMP *r; int rc; r = av_mallocz(sizeof(RTMP)); if (!r) return AVERROR(ENOMEM); switch (av_log_get_level()) { default: case AV_LOG_FATAL: rc = RTMP_LOGCRIT; break; case AV_LOG_ERROR: rc = RTMP_LOGERROR; break; case AV_LOG_WARNING: rc = RTMP_LOGWARNING; break; case AV_LOG_INFO: rc = RTMP_LOGINFO; break; case AV_LOG_VERBOSE: rc = RTMP_LOGDEBUG; break; case AV_LOG_DEBUG: rc = RTMP_LOGDEBUG2; break; } RTMP_LogSetLevel(rc); RTMP_LogSetCallback(rtmp_log); RTMP_Init(r); if (!RTMP_SetupURL(r, s->filename)) { rc = -1; goto fail; } if (flags & AVIO_FLAG_WRITE) RTMP_EnableWrite(r); if (!RTMP_Connect(r, NULL) || !RTMP_ConnectStream(r, 0)) { rc = -1; goto fail; } s->priv_data = r; s->is_streamed = 1; return 0; fail: av_free(r); return rc; } static int rtmp_write(URLContext *s, const uint8_t *buf, int size) { RTMP *r = s->priv_data; return RTMP_Write(r, buf, size); } static int rtmp_read(URLContext *s, uint8_t *buf, int size) { RTMP *r = s->priv_data; return RTMP_Read(r, buf, size); } static int rtmp_read_pause(URLContext *s, int pause) { RTMP *r = s->priv_data; if (!RTMP_Pause(r, pause)) return -1; return 0; } static int64_t rtmp_read_seek(URLContext *s, int stream_index, int64_t timestamp, int flags) { RTMP *r = s->priv_data; if (flags & AVSEEK_FLAG_BYTE) return AVERROR(ENOSYS); /* seeks are in milliseconds */ if (stream_index < 0) timestamp = av_rescale_rnd(timestamp, 1000, AV_TIME_BASE, flags & AVSEEK_FLAG_BACKWARD ? AV_ROUND_DOWN : AV_ROUND_UP); if (!RTMP_SendSeek(r, timestamp)) return -1; return timestamp; } static int rtmp_get_file_handle(URLContext *s) { RTMP *r = s->priv_data; return RTMP_Socket(r); } URLProtocol ff_rtmp_protocol = { .name = "rtmp", .url_open = rtmp_open, .url_read = rtmp_read, .url_write = rtmp_write, .url_close = rtmp_close, .url_read_pause = rtmp_read_pause, .url_read_seek = rtmp_read_seek, .url_get_file_handle = rtmp_get_file_handle }; URLProtocol ff_rtmpt_protocol = { .name = "rtmpt", .url_open = rtmp_open, .url_read = rtmp_read, .url_write = rtmp_write, .url_close = rtmp_close, .url_read_pause = rtmp_read_pause, .url_read_seek = rtmp_read_seek, .url_get_file_handle = rtmp_get_file_handle }; URLProtocol ff_rtmpe_protocol = { .name = "rtmpe", .url_open = rtmp_open, .url_read = rtmp_read, .url_write = rtmp_write, .url_close = rtmp_close, .url_read_pause = rtmp_read_pause, .url_read_seek = rtmp_read_seek, .url_get_file_handle = rtmp_get_file_handle }; URLProtocol ff_rtmpte_protocol = { .name = "rtmpte", .url_open = rtmp_open, .url_read = rtmp_read, .url_write = rtmp_write, .url_close = rtmp_close, .url_read_pause = rtmp_read_pause, .url_read_seek = rtmp_read_seek, .url_get_file_handle = rtmp_get_file_handle }; URLProtocol ff_rtmps_protocol = { .name = "rtmps", .url_open = rtmp_open, .url_read = rtmp_read, .url_write = rtmp_write, .url_close = rtmp_close, .url_read_pause = rtmp_read_pause, .url_read_seek = rtmp_read_seek, .url_get_file_handle = rtmp_get_file_handle };