/* * Network layer for MPlayer * by Bertrand BAUDET * (C) 2001, MPlayer team. */ //#define DUMP2FILE #include #include #include #include #include #include #include "config.h" #include "stream.h" #include "demuxer.h" #include "network.h" #include "http.h" #include "url.h" #include "asf.h" #include "rtp.h" extern int verbose; static struct { char *mime_type; int demuxer_type; } mime_type_table[] = { // MP3 streaming, some MP3 streaming server answer with audio/mpeg { "audio/mpeg", DEMUXER_TYPE_MPEG_PS }, // MPEG streaming { "video/mpeg", DEMUXER_TYPE_MPEG_PS }, // AVI ??? => video/x-msvideo { "video/x-msvideo", DEMUXER_TYPE_AVI }, // MOV => video/quicktime { "video/quicktime", DEMUXER_TYPE_MOV }, // ASF { "audio/x-ms-wax", DEMUXER_TYPE_ASF }, { "audio/x-ms-wma", DEMUXER_TYPE_ASF }, { "video/x-ms-asf", DEMUXER_TYPE_ASF }, { "video/x-ms-afs", DEMUXER_TYPE_ASF }, { "video/x-ms-wvx", DEMUXER_TYPE_ASF }, { "video/x-ms-wmv", DEMUXER_TYPE_ASF }, { "video/x-ms-wma", DEMUXER_TYPE_ASF }, }; static struct { char *extension; int demuxer_type; } extensions_table[] = { { "mpeg", DEMUXER_TYPE_MPEG_PS }, { "mpg", DEMUXER_TYPE_MPEG_PS }, { "mpe", DEMUXER_TYPE_MPEG_ES }, { "avi", DEMUXER_TYPE_AVI }, { "mov", DEMUXER_TYPE_MOV }, { "qt", DEMUXER_TYPE_MOV }, { "asx", DEMUXER_TYPE_ASF }, { "asf", DEMUXER_TYPE_ASF }, { "wmv", DEMUXER_TYPE_ASF }, { "wma", DEMUXER_TYPE_ASF }, { "viv", DEMUXER_TYPE_VIVO }, { "rm", DEMUXER_TYPE_REAL }, { "y4m", DEMUXER_TYPE_Y4M }, }; streaming_ctrl_t * streaming_ctrl_new( ) { streaming_ctrl_t *streaming_ctrl; streaming_ctrl = (streaming_ctrl_t*)malloc(sizeof(streaming_ctrl_t)); if( streaming_ctrl==NULL ) { printf("Failed to allocate memory\n"); return NULL; } memset( streaming_ctrl, 0, sizeof(streaming_ctrl_t) ); return streaming_ctrl; } void streaming_ctrl_free( streaming_ctrl_t *streaming_ctrl ) { if( streaming_ctrl==NULL ) return; free( streaming_ctrl ); } int read_rtp_from_server(int fd, char *buffer, int length) { struct rtpheader rh; char *data; int len; static int got_first = 0; static int sequence; if( buffer==NULL || length<0 ) return -1; getrtp2(fd, &rh, &data, &len); if( got_first && rh.b.sequence != sequence+1 ) printf("RTP packet sequence error! Expected: %d, received: %d\n", sequence+1, rh.b.sequence); got_first = 1; sequence = rh.b.sequence; memcpy(buffer, data, len); return(len); } // Connect to a server using a TCP connection int connect2Server(char *host, int port) { int socket_server_fd; int err, err_len; int ret; fd_set set; struct timeval tv; struct sockaddr_in server_address; printf("Connecting to server %s:%d ...\n", host, port ); socket_server_fd = socket(AF_INET, SOCK_STREAM, 0); if( socket_server_fd==-1 ) { perror("Failed to create socket"); return -1; } if( isalpha(host[0]) ) { struct hostent *hp; hp=(struct hostent*)gethostbyname( host ); if( hp==NULL ) { printf("Counldn't resolve name: %s\n", host); return -1; } memcpy( (void*)&server_address.sin_addr.s_addr, (void*)hp->h_addr, hp->h_length ); } else { inet_pton(AF_INET, host, &server_address.sin_addr); } server_address.sin_family=AF_INET; server_address.sin_port=htons(port); // Turn the socket as non blocking so we can timeout on the connection fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) | O_NONBLOCK ); if( connect( socket_server_fd, (struct sockaddr*)&server_address, sizeof(server_address) )==-1 ) { if( errno!=EINPROGRESS ) { perror("Failed to connect to server"); close(socket_server_fd); return -1; } } tv.tv_sec = 15; // 15 seconds timeout on connection tv.tv_usec = 0; FD_ZERO( &set ); FD_SET( socket_server_fd, &set ); // When the connection will be made, we will have a writable fd ret = select(socket_server_fd+1, NULL, &set, NULL, &tv); if( ret<=0 ) { if( ret<0 ) perror("select failed"); else printf("Connection timeout\n"); return -1; } // Turn back the socket as blocking fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) & ~O_NONBLOCK ); // Check if there were any error err_len = sizeof(int); ret = getsockopt(socket_server_fd,SOL_SOCKET,SO_ERROR,&err,&err_len); if(ret < 0) { printf("getsockopt failed : %s\n",strerror(errno)); return -1; } if(err > 0) { printf("Connect error : %s\n",strerror(err)); return -1; } return socket_server_fd; } URL_t* check4proxies( URL_t *url ) { if( !strcasecmp(url->protocol, "http_proxy") ) { printf("Using HTTP proxy: http://%s:%d\n", url->hostname, url->port ); return url; } // Check if the http_proxy environment variable is set. if( !strcasecmp(url->protocol, "http") ) { char *proxy; proxy = getenv("http_proxy"); if( proxy!=NULL ) { // We got a proxy, build the URL to use it int len; char *new_url; URL_t *tmp_url; URL_t *proxy_url = url_new( proxy ); if( proxy_url==NULL ) { printf("Invalid proxy setting...Trying without proxy.\n"); return url; } printf("Using HTTP proxy: %s\n", proxy_url->url ); len = strlen( proxy_url->hostname ) + strlen( url->url ) + 20; // 20 = http_proxy:// + port new_url = malloc( len+1 ); if( new_url==NULL ) { printf("Memory allocation failed\n"); return url; } sprintf( new_url, "http_proxy://%s:%d/%s", proxy_url->hostname, proxy_url->port, url->url); tmp_url = url_new( new_url ); if( tmp_url==NULL ) { return url; } url_free( url ); url = tmp_url; free( new_url ); url_free( proxy_url ); } } return url; } int http_send_request( URL_t *url ) { HTTP_header_t *http_hdr; URL_t *server_url; char str[80]; int fd; int ret; int proxy = 0; // Boolean http_hdr = http_new_header(); if( !strcasecmp(url->protocol, "http_proxy") ) { proxy = 1; server_url = url_new( (url->file)+1 ); http_set_uri( http_hdr, server_url->url ); } else { server_url = url; http_set_uri( http_hdr, server_url->file ); } snprintf(str, 80, "Host: %s", server_url->hostname ); http_set_field( http_hdr, str); http_set_field( http_hdr, "User-Agent: MPlayer"); http_set_field( http_hdr, "Connection: closed"); if( http_build_request( http_hdr )==NULL ) { return -1; } if( proxy ) { if( url->port==0 ) url->port = 8080; // Default port for the proxy server fd = connect2Server( url->hostname, url->port ); url_free( server_url ); } else { if( server_url->port==0 ) server_url->port = 80; // Default port for the web server fd = connect2Server( server_url->hostname, server_url->port ); } if( fd<0 ) { return -1; } if( verbose ) { printf("Request: [%s]\n", http_hdr->buffer ); } ret = write( fd, http_hdr->buffer, http_hdr->buffer_size ); if( ret!=http_hdr->buffer_size ) { printf("Error while sending HTTP request: didn't sent all the request\n"); return -1; } http_free( http_hdr ); return fd; } HTTP_header_t * http_read_response( int fd ) { HTTP_header_t *http_hdr; char response[BUFFER_SIZE]; int i; http_hdr = http_new_header(); if( http_hdr==NULL ) { return NULL; } do { i = read( fd, response, BUFFER_SIZE ); if( i<0 ) { printf("Read failed\n"); http_free( http_hdr ); return NULL; } if( i==0 ) { printf("http_read_response read 0 -ie- EOF\n"); http_free( http_hdr ); return NULL; } http_response_append( http_hdr, response, i ); } while( !http_is_header_entire( http_hdr ) ); http_response_parse( http_hdr ); return http_hdr; } // By using the protocol, the extension of the file or the content-type // we might be able to guess the streaming type. int autodetectProtocol(streaming_ctrl_t *streaming_ctrl, int *fd_out, int *file_format) { HTTP_header_t *http_hdr; int fd=-1; int i; int redirect; char *extension; char *content_type; char *next_url; char response[1024]; URL_t *url = streaming_ctrl->url; *file_format = DEMUXER_TYPE_UNKNOWN; do { *fd_out = -1; next_url = NULL; extension = NULL; content_type = NULL; redirect = 0; if( url==NULL ) { return -1; } // Get the extension of the file if present if( url->file!=NULL ) { for( i=strlen(url->file) ; i>0 ; i-- ) { if( url->file[i]=='.' ) { extension=(url->file)+i+1; break; } } } extension=NULL; if( extension!=NULL ) { printf("Extension: %s\n", extension ); // Look for the extension in the extensions table for( i=0 ; i<(sizeof(extensions_table)/sizeof(extensions_table[0])) ; i++ ) { if( !strcasecmp(extension, extensions_table[i].extension) ) { *file_format = extensions_table[i].demuxer_type; return 0; } } } // Checking for RTSP if( !strcasecmp(url->protocol, "rtsp") ) { printf("RTSP protocol not yet implemented!\n"); return -1; } // Checking for RTP if( !strcasecmp(url->protocol, "rtp") ) { if( url->port==0 ) { printf("You must enter a port number for RTP streams!\n"); return -1; } return -1; } // Checking for ASF if( !strncasecmp(url->protocol, "mms", 3) ) { *file_format = DEMUXER_TYPE_ASF; return 0; } // HTTP based protocol if( !strcasecmp(url->protocol, "http") || !strcasecmp(url->protocol, "http_proxy") ) { fd = http_send_request( url ); if( fd<0 ) { return -1; } http_hdr = http_read_response( fd ); if( http_hdr==NULL ) { close( fd ); http_free( http_hdr ); return -1; } *fd_out=fd; if( verbose ) { http_debug_hdr( http_hdr ); } streaming_ctrl->data = (void*)http_hdr; // Check if the response is an ICY status_code reason_phrase if( !strcasecmp(http_hdr->protocol, "ICY") ) { // Ok, we have detected an mp3 streaming *file_format = DEMUXER_TYPE_MPEG_PS; return 0; } switch( http_hdr->status_code ) { case 200: // OK // Look if we can use the Content-Type content_type = http_get_field( http_hdr, "Content-Type" ); if( content_type!=NULL ) { printf("Content-Type: [%s]\n", content_type ); printf("Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") ); // Check in the mime type table for a demuxer type for( i=0 ; i<(sizeof(mime_type_table)/sizeof(mime_type_table[0])) ; i++ ) { if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) { *file_format = mime_type_table[i].demuxer_type; return 0; } } // Not found in the mime type table, don't fail, // we should try raw HTTP return 0; } break; // Redirect case 301: // Permanently case 302: // Temporarily // TODO: RFC 2616, recommand to detect infinite redirection loops next_url = http_get_field( http_hdr, "Location" ); if( next_url!=NULL ) { close( fd ); url_free( url ); url = url_new( next_url ); http_free( http_hdr ); redirect = 1; } break; default: printf("Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase ); return -1; } } else { printf("Unknown protocol '%s'\n", url->protocol ); return -1; } } while( redirect ); return -1; } int streaming_bufferize( streaming_ctrl_t *streaming_ctrl, char *buffer, int size) { printf("streaming_bufferize\n"); streaming_ctrl->buffer = (char*)malloc(size); if( streaming_ctrl->buffer==NULL ) { printf("Memory allocation failed\n"); return -1; } memcpy( streaming_ctrl->buffer, buffer, size ); streaming_ctrl->buffer_size = size; return size; } int nop_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *stream_ctrl ) { int len=0; //printf("nop_streaming_read\n"); if( stream_ctrl->buffer_size!=0 ) { int buffer_len = stream_ctrl->buffer_size-stream_ctrl->buffer_pos; printf("%d bytes in buffer\n", stream_ctrl->buffer_size); len = (sizebuffer)+(stream_ctrl->buffer_pos), len ); stream_ctrl->buffer_pos += len; printf("buffer_pos = %d\n", stream_ctrl->buffer_pos ); if( stream_ctrl->buffer_pos>=stream_ctrl->buffer_size ) { free( stream_ctrl->buffer ); stream_ctrl->buffer = NULL; stream_ctrl->buffer_size = 0; stream_ctrl->buffer_pos = 0; printf("buffer cleaned\n"); } printf("read %d bytes from buffer\n", len ); } if( lenfd; if( fd<0 ) { fd = http_send_request( stream->streaming_ctrl->url ); if( fd<0 ) return -1; http_hdr = http_read_response( fd ); if( http_hdr==NULL ) return -1; switch( http_hdr->status_code ) { case 200: // OK printf("Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") ); printf("Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") ); if( http_hdr->body_size>0 ) { if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) { http_free( http_hdr ); return -1; } } break; default: printf("Server return %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase ); close( fd ); fd = -1; } stream->fd = fd; } else { http_hdr = (HTTP_header_t*)stream->streaming_ctrl->data; if( http_hdr->body_size>0 ) { if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) { http_free( http_hdr ); return -1; } } } if( http_hdr ) { http_free( http_hdr ); stream->streaming_ctrl->data = NULL; } stream->streaming_ctrl->streaming_read = nop_streaming_read; stream->streaming_ctrl->streaming_seek = nop_streaming_seek; stream->streaming_ctrl->prebuffer_size = 180000; // stream->streaming_ctrl->prebuffer_size = 0; stream->streaming_ctrl->buffering = 1; // stream->streaming_ctrl->buffering = 0; stream->streaming_ctrl->status = streaming_playing_e; return 0; } // Start listening on a UDP port. If multicast, join the group. int rtp_open_socket( URL_t *url ) { int socket_server_fd, rxsockbufsz; int err, err_len; fd_set set; struct sockaddr_in server_address; struct ip_mreq mcast; printf("Listening for traffic on %s:%d ...\n", url->hostname, url->port ); socket_server_fd = socket(AF_INET, SOCK_DGRAM, 0); // fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) | O_NONBLOCK ); if( socket_server_fd==-1 ) { perror("Failed to create socket"); return -1; } if( isalpha(url->hostname[0]) ) { struct hostent *hp =(struct hostent*)gethostbyname( url->hostname ); if( hp==NULL ) { printf("Counldn't resolve name: %s\n", url->hostname); return -1; } memcpy( (void*)&server_address.sin_addr.s_addr, (void*)hp->h_addr, hp->h_length ); } else { inet_pton(AF_INET, url->hostname, &server_address.sin_addr); } server_address.sin_family=AF_INET; server_address.sin_port=htons(url->port); if( bind( socket_server_fd, (struct sockaddr*)&server_address, sizeof(server_address) )==-1 ) { if( errno!=EINPROGRESS ) { perror("Failed to connect to server"); close(socket_server_fd); return -1; } } // Increase the socket rx buffer size to maximum -- this is UDP rxsockbufsz = 240 * 1024; if( setsockopt( socket_server_fd, SOL_SOCKET, SO_RCVBUF, &rxsockbufsz, sizeof(rxsockbufsz))) { perror("Couldn't set receive socket buffer size"); } if((ntohl(server_address.sin_addr.s_addr) >> 28) == 0xe) { mcast.imr_multiaddr.s_addr = server_address.sin_addr.s_addr; //mcast.imr_interface.s_addr = inet_addr("10.1.1.2"); mcast.imr_interface.s_addr = 0; if( setsockopt( socket_server_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mcast, sizeof(mcast))) { perror("IP_ADD_MEMBERSHIP failed (do you have multicasting enabled in your kernel?)"); return -1; } } //tv.tv_sec = 0; //tv.tv_usec = (10 * 1000000); // 10 seconds timeout FD_ZERO( &set ); FD_SET( socket_server_fd, &set ); //if( select(socket_server_fd+1, &set, NULL, NULL, &tv)>0 ) { if( select(socket_server_fd+1, &set, NULL, NULL, NULL)>0 ) { err_len = sizeof( err ); getsockopt( socket_server_fd, SOL_SOCKET, SO_ERROR, &err, &err_len ); if( err ) { printf("Timeout! No data from host %s\n", url->hostname ); printf("Socket error: %d\n", err ); close(socket_server_fd); return -1; } } return socket_server_fd; } int rtp_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *streaming_ctrl ) { return read_rtp_from_server( fd, buffer, size ); } int rtp_streaming_start( stream_t *stream ) { streaming_ctrl_t *streaming_ctrl; int fd; if( stream==NULL ) return -1; streaming_ctrl = stream->streaming_ctrl; fd = stream->fd; if( fd<0 ) { fd = rtp_open_socket( (streaming_ctrl->url) ); if( fd<0 ) return -1; stream->fd = fd; } streaming_ctrl->streaming_read = rtp_streaming_read; streaming_ctrl->streaming_seek = nop_streaming_seek; streaming_ctrl->prebuffer_size = 180000; streaming_ctrl->buffering = 0; //1; streaming_ctrl->status = streaming_playing_e; return 0; } int streaming_start(stream_t *stream, int demuxer_type) { int ret=-1; if( stream==NULL ) return -1; // For RTP streams, we usually don't know the stream type until we open it. if( !strcasecmp( stream->streaming_ctrl->url->protocol, "rtp")) { if(stream->fd >= 0) { if(close(stream->fd) < 0) printf("streaming_start : Closing socket %d failed %s\n",stream->fd,strerror(errno)); } stream->fd = -1; ret = rtp_streaming_start( stream ); } else // For connection-oriented streams, we can usually determine the streaming type. switch( demuxer_type ) { case DEMUXER_TYPE_ASF: // Send the appropriate HTTP request // Need to filter the network stream. // ASF raw stream is encapsulated. ret = asf_streaming_start( stream ); if( ret<0 ) { printf("asf_streaming_start failed\n"); } break; case DEMUXER_TYPE_AVI: case DEMUXER_TYPE_MOV: case DEMUXER_TYPE_MPEG_ES: case DEMUXER_TYPE_MPEG_PS: case DEMUXER_TYPE_UNKNOWN: // Generic start, doesn't need to filter // the network stream, it's a raw stream ret = nop_streaming_start( stream ); if( ret<0 ) { printf("asf_streaming_start failed\n"); } break; default: printf("Unable to detect the streaming type\n"); ret = -1; } if( ret<0 ) { free( stream->streaming_ctrl ); } return ret; } int streaming_stop( stream_t *stream ) { stream->streaming_ctrl->status = streaming_stopped_e; return 0; }