| /* |
| * RTMP network protocol |
| * Copyright (c) 2010 Howard Chu |
| * |
| * 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 |
| */ |
| |
| /** |
| * @file |
| * RTMP protocol based on http://rtmpdump.mplayerhq.hu/ librtmp |
| */ |
| |
| #include "libavutil/avstring.h" |
| #include "libavutil/mathematics.h" |
| #include "libavutil/opt.h" |
| #include "avformat.h" |
| #if CONFIG_NETWORK |
| #include "network.h" |
| #endif |
| #include "url.h" |
| |
| #include <librtmp/rtmp.h> |
| #include <librtmp/log.h> |
| |
| typedef struct LibRTMPContext { |
| const AVClass *class; |
| RTMP rtmp; |
| char *app; |
| char *conn; |
| char *subscribe; |
| char *playpath; |
| char *tcurl; |
| char *flashver; |
| char *swfurl; |
| char *swfverify; |
| char *pageurl; |
| char *client_buffer_time; |
| int live; |
| char *temp_filename; |
| int buffer_size; |
| } LibRTMPContext; |
| |
| 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) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| RTMP_Close(r); |
| av_freep(&ctx->temp_filename); |
| 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) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| int rc = 0, level; |
| char *filename = s->filename; |
| int len = strlen(s->filename) + 1; |
| |
| switch (av_log_get_level()) { |
| default: |
| case AV_LOG_FATAL: level = RTMP_LOGCRIT; break; |
| case AV_LOG_ERROR: level = RTMP_LOGERROR; break; |
| case AV_LOG_WARNING: level = RTMP_LOGWARNING; break; |
| case AV_LOG_INFO: level = RTMP_LOGINFO; break; |
| case AV_LOG_VERBOSE: level = RTMP_LOGDEBUG; break; |
| case AV_LOG_DEBUG: level = RTMP_LOGDEBUG2; break; |
| } |
| RTMP_LogSetLevel(level); |
| RTMP_LogSetCallback(rtmp_log); |
| |
| if (ctx->app) len += strlen(ctx->app) + sizeof(" app="); |
| if (ctx->tcurl) len += strlen(ctx->tcurl) + sizeof(" tcUrl="); |
| if (ctx->pageurl) len += strlen(ctx->pageurl) + sizeof(" pageUrl="); |
| if (ctx->flashver) len += strlen(ctx->flashver) + sizeof(" flashver="); |
| |
| if (ctx->conn) { |
| char *sep, *p = ctx->conn; |
| int options = 0; |
| |
| while (p) { |
| options++; |
| p += strspn(p, " "); |
| if (!*p) |
| break; |
| sep = strchr(p, ' '); |
| if (sep) |
| p = sep + 1; |
| else |
| break; |
| } |
| len += options * sizeof(" conn="); |
| len += strlen(ctx->conn); |
| } |
| |
| if (ctx->playpath) |
| len += strlen(ctx->playpath) + sizeof(" playpath="); |
| if (ctx->live) |
| len += sizeof(" live=1"); |
| if (ctx->subscribe) |
| len += strlen(ctx->subscribe) + sizeof(" subscribe="); |
| |
| if (ctx->client_buffer_time) |
| len += strlen(ctx->client_buffer_time) + sizeof(" buffer="); |
| |
| if (ctx->swfurl || ctx->swfverify) { |
| len += sizeof(" swfUrl="); |
| |
| if (ctx->swfverify) |
| len += strlen(ctx->swfverify) + sizeof(" swfVfy=1"); |
| else |
| len += strlen(ctx->swfurl); |
| } |
| |
| if (!(ctx->temp_filename = filename = av_malloc(len))) |
| return AVERROR(ENOMEM); |
| |
| av_strlcpy(filename, s->filename, len); |
| if (ctx->app) { |
| av_strlcat(filename, " app=", len); |
| av_strlcat(filename, ctx->app, len); |
| } |
| if (ctx->tcurl) { |
| av_strlcat(filename, " tcUrl=", len); |
| av_strlcat(filename, ctx->tcurl, len); |
| } |
| if (ctx->pageurl) { |
| av_strlcat(filename, " pageUrl=", len); |
| av_strlcat(filename, ctx->pageurl, len); |
| } |
| if (ctx->swfurl) { |
| av_strlcat(filename, " swfUrl=", len); |
| av_strlcat(filename, ctx->swfurl, len); |
| } |
| if (ctx->flashver) { |
| av_strlcat(filename, " flashVer=", len); |
| av_strlcat(filename, ctx->flashver, len); |
| } |
| if (ctx->conn) { |
| char *sep, *p = ctx->conn; |
| while (p) { |
| av_strlcat(filename, " conn=", len); |
| p += strspn(p, " "); |
| if (!*p) |
| break; |
| sep = strchr(p, ' '); |
| if (sep) |
| *sep = '\0'; |
| av_strlcat(filename, p, len); |
| |
| if (sep) |
| p = sep + 1; |
| else |
| break; |
| } |
| } |
| if (ctx->playpath) { |
| av_strlcat(filename, " playpath=", len); |
| av_strlcat(filename, ctx->playpath, len); |
| } |
| if (ctx->live) |
| av_strlcat(filename, " live=1", len); |
| if (ctx->subscribe) { |
| av_strlcat(filename, " subscribe=", len); |
| av_strlcat(filename, ctx->subscribe, len); |
| } |
| if (ctx->client_buffer_time) { |
| av_strlcat(filename, " buffer=", len); |
| av_strlcat(filename, ctx->client_buffer_time, len); |
| } |
| if (ctx->swfurl || ctx->swfverify) { |
| av_strlcat(filename, " swfUrl=", len); |
| |
| if (ctx->swfverify) { |
| av_strlcat(filename, ctx->swfverify, len); |
| av_strlcat(filename, " swfVfy=1", len); |
| } else { |
| av_strlcat(filename, ctx->swfurl, len); |
| } |
| } |
| |
| RTMP_Init(r); |
| if (!RTMP_SetupURL(r, filename)) { |
| rc = AVERROR_UNKNOWN; |
| goto fail; |
| } |
| |
| if (flags & AVIO_FLAG_WRITE) |
| RTMP_EnableWrite(r); |
| |
| if (!RTMP_Connect(r, NULL) || !RTMP_ConnectStream(r, 0)) { |
| rc = AVERROR_UNKNOWN; |
| goto fail; |
| } |
| |
| #if CONFIG_NETWORK |
| if (ctx->buffer_size >= 0 && (flags & AVIO_FLAG_WRITE)) { |
| int tmp = ctx->buffer_size; |
| if (setsockopt(r->m_sb.sb_socket, SOL_SOCKET, SO_SNDBUF, &tmp, sizeof(tmp))) { |
| rc = AVERROR_EXTERNAL; |
| goto fail; |
| } |
| } |
| #endif |
| |
| s->is_streamed = 1; |
| return 0; |
| fail: |
| av_freep(&ctx->temp_filename); |
| if (rc) |
| RTMP_Close(r); |
| |
| return rc; |
| } |
| |
| static int rtmp_write(URLContext *s, const uint8_t *buf, int size) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| int ret = RTMP_Write(r, buf, size); |
| if (!ret) |
| return AVERROR_EOF; |
| return ret; |
| } |
| |
| static int rtmp_read(URLContext *s, uint8_t *buf, int size) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| int ret = RTMP_Read(r, buf, size); |
| if (!ret) |
| return AVERROR_EOF; |
| return ret; |
| } |
| |
| static int rtmp_read_pause(URLContext *s, int pause) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| if (!RTMP_Pause(r, pause)) |
| return AVERROR_UNKNOWN; |
| return 0; |
| } |
| |
| static int64_t rtmp_read_seek(URLContext *s, int stream_index, |
| int64_t timestamp, int flags) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| 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 AVERROR_UNKNOWN; |
| return timestamp; |
| } |
| |
| static int rtmp_get_file_handle(URLContext *s) |
| { |
| LibRTMPContext *ctx = s->priv_data; |
| RTMP *r = &ctx->rtmp; |
| |
| return RTMP_Socket(r); |
| } |
| |
| #define OFFSET(x) offsetof(LibRTMPContext, x) |
| #define DEC AV_OPT_FLAG_DECODING_PARAM |
| #define ENC AV_OPT_FLAG_ENCODING_PARAM |
| static const AVOption options[] = { |
| {"rtmp_app", "Name of application to connect to on the RTMP server", OFFSET(app), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| {"rtmp_buffer", "Set buffer time in milliseconds. The default is 3000.", OFFSET(client_buffer_time), AV_OPT_TYPE_STRING, {.str = "3000"}, 0, 0, DEC|ENC}, |
| {"rtmp_conn", "Append arbitrary AMF data to the Connect message", OFFSET(conn), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| {"rtmp_flashver", "Version of the Flash plugin used to run the SWF player.", OFFSET(flashver), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| {"rtmp_live", "Specify that the media is a live stream.", OFFSET(live), AV_OPT_TYPE_INT, {.i64 = 0}, INT_MIN, INT_MAX, DEC, "rtmp_live"}, |
| {"any", "both", 0, AV_OPT_TYPE_CONST, {.i64 = -2}, 0, 0, DEC, "rtmp_live"}, |
| {"live", "live stream", 0, AV_OPT_TYPE_CONST, {.i64 = -1}, 0, 0, DEC, "rtmp_live"}, |
| {"recorded", "recorded stream", 0, AV_OPT_TYPE_CONST, {.i64 = 0}, 0, 0, DEC, "rtmp_live"}, |
| {"rtmp_pageurl", "URL of the web page in which the media was embedded. By default no value will be sent.", OFFSET(pageurl), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC}, |
| {"rtmp_playpath", "Stream identifier to play or to publish", OFFSET(playpath), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| {"rtmp_subscribe", "Name of live stream to subscribe to. Defaults to rtmp_playpath.", OFFSET(subscribe), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC}, |
| {"rtmp_swfurl", "URL of the SWF player. By default no value will be sent", OFFSET(swfurl), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| {"rtmp_swfverify", "URL to player swf file, compute hash/size automatically. (unimplemented)", OFFSET(swfverify), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC}, |
| {"rtmp_tcurl", "URL of the target stream. Defaults to proto://host[:port]/app.", OFFSET(tcurl), AV_OPT_TYPE_STRING, {.str = NULL }, 0, 0, DEC|ENC}, |
| #if CONFIG_NETWORK |
| {"rtmp_buffer_size", "set buffer size in bytes", OFFSET(buffer_size), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, DEC|ENC }, |
| #endif |
| { NULL }, |
| }; |
| |
| #define RTMP_CLASS(flavor)\ |
| static const AVClass lib ## flavor ## _class = {\ |
| .class_name = "lib" #flavor " protocol",\ |
| .item_name = av_default_item_name,\ |
| .option = options,\ |
| .version = LIBAVUTIL_VERSION_INT,\ |
| }; |
| |
| RTMP_CLASS(rtmp) |
| const URLProtocol ff_librtmp_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, |
| .priv_data_size = sizeof(LibRTMPContext), |
| .priv_data_class = &librtmp_class, |
| .flags = URL_PROTOCOL_FLAG_NETWORK, |
| }; |
| |
| RTMP_CLASS(rtmpt) |
| const URLProtocol ff_librtmpt_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, |
| .priv_data_size = sizeof(LibRTMPContext), |
| .priv_data_class = &librtmpt_class, |
| .flags = URL_PROTOCOL_FLAG_NETWORK, |
| }; |
| |
| RTMP_CLASS(rtmpe) |
| const URLProtocol ff_librtmpe_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, |
| .priv_data_size = sizeof(LibRTMPContext), |
| .priv_data_class = &librtmpe_class, |
| .flags = URL_PROTOCOL_FLAG_NETWORK, |
| }; |
| |
| RTMP_CLASS(rtmpte) |
| const URLProtocol ff_librtmpte_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, |
| .priv_data_size = sizeof(LibRTMPContext), |
| .priv_data_class = &librtmpte_class, |
| .flags = URL_PROTOCOL_FLAG_NETWORK, |
| }; |
| |
| RTMP_CLASS(rtmps) |
| const URLProtocol ff_librtmps_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, |
| .priv_data_size = sizeof(LibRTMPContext), |
| .priv_data_class = &librtmps_class, |
| .flags = URL_PROTOCOL_FLAG_NETWORK, |
| }; |
