mirror of https://github.com/mpv-player/mpv
478 lines
12 KiB
C
478 lines
12 KiB
C
/*
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* Network layer for MPlayer
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* by Bertrand BAUDET <bertrand_baudet@yahoo.com>
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* (C) 2001, MPlayer team.
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*/
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//#define DUMP2FILE
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <errno.h>
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#include <ctype.h>
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#include "config.h"
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#include "stream.h"
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#include "demuxer.h"
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#include "network.h"
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#include "http.h"
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#include "url.h"
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#include "asf.h"
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static struct {
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char *mime_type;
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int demuxer_type;
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} mime_type_table[] = {
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// MP3 streaming, some MP3 streaming server answer with audio/mpeg
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{ "audio/mpeg", DEMUXER_TYPE_MPEG_PS },
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// MPEG streaming
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{ "video/mpeg", DEMUXER_TYPE_MPEG_PS },
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// AVI ??? => video/x-msvideo
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{ "video/x-msvideo", DEMUXER_TYPE_AVI },
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// MOV => video/quicktime
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{ "video/quicktime", DEMUXER_TYPE_MOV },
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// ASF
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{ "audio/x-ms-wax", DEMUXER_TYPE_ASF },
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{ "audio/x-ms-wma", DEMUXER_TYPE_ASF },
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{ "video/x-ms-asf", DEMUXER_TYPE_ASF },
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{ "video/x-ms-afs", DEMUXER_TYPE_ASF },
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{ "video/x-ms-wvx", DEMUXER_TYPE_ASF },
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{ "video/x-ms-wmv", DEMUXER_TYPE_ASF },
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{ "video/x-ms-wma", DEMUXER_TYPE_ASF },
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{ "text/plain", DEMUXER_TYPE_ASF }, // This is the mime type that a web server send when sending a raw asf without streaming encapsulation.
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};
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static struct {
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char *extension;
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int demuxer_type;
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} extensions_table[] = {
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{ "mpeg", DEMUXER_TYPE_MPEG_PS },
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{ "mpg", DEMUXER_TYPE_MPEG_PS },
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{ "mpe", DEMUXER_TYPE_MPEG_ES },
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{ "avi", DEMUXER_TYPE_AVI },
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{ "mov", DEMUXER_TYPE_MOV },
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{ "qt", DEMUXER_TYPE_MOV },
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{ "asx", DEMUXER_TYPE_ASF },
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{ "asf", DEMUXER_TYPE_ASF },
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{ "wmv", DEMUXER_TYPE_ASF },
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{ "wma", DEMUXER_TYPE_ASF },
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{ "viv", DEMUXER_TYPE_VIVO },
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};
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streaming_ctrl_t *
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streaming_ctrl_new( ) {
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streaming_ctrl_t *streaming_ctrl;
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streaming_ctrl = (streaming_ctrl_t*)malloc(sizeof(streaming_ctrl_t));
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if( streaming_ctrl==NULL ) {
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printf("Failed to allocate memory\n");
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return NULL;
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}
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memset( streaming_ctrl, 0, sizeof(streaming_ctrl_t) );
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return streaming_ctrl;
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}
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void
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streaming_ctrl_free( streaming_ctrl_t *streaming_ctrl ) {
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if( streaming_ctrl==NULL ) return;
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free( streaming_ctrl );
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}
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// Connect to a server using a TCP connection
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int
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connect2Server(char *host, int port) {
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int socket_server_fd;
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int err, err_len;
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int ret;
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fd_set set;
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struct timeval tv;
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struct sockaddr_in server_address;
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printf("Connecting to server %s:%d ...\n", host, port );
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socket_server_fd = socket(AF_INET, SOCK_STREAM, 0);
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if( socket_server_fd==-1 ) {
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perror("Failed to create socket");
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return -1;
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}
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if( isalpha(host[0]) ) {
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struct hostent *hp;
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hp=(struct hostent*)gethostbyname( host );
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if( hp==NULL ) {
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printf("Counldn't resolve name: %s\n", host);
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return -1;
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}
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memcpy( (void*)&server_address.sin_addr.s_addr, (void*)hp->h_addr, hp->h_length );
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} else {
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inet_pton(AF_INET, host, &server_address.sin_addr);
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}
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server_address.sin_family=AF_INET;
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server_address.sin_port=htons(port);
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// Turn the socket as non blocking so we can timeout on the connection
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fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) | O_NONBLOCK );
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if( connect( socket_server_fd, (struct sockaddr*)&server_address, sizeof(server_address) )==-1 ) {
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if( errno!=EINPROGRESS ) {
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perror("Failed to connect to server");
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close(socket_server_fd);
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return -1;
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}
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}
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tv.tv_sec = 5; // 5 seconds timeout on connection
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tv.tv_usec = 0;
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FD_ZERO( &set );
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FD_SET( socket_server_fd, &set );
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// When the connection will be made, we will have a writable fd
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ret = select(socket_server_fd+1, NULL, &set, NULL, &tv);
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if( ret<=0 ) {
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if( ret<0 ) perror("select failed");
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else printf("Connection timeout\n");
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return -1;
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}
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// Turn back the socket as blocking
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fcntl( socket_server_fd, F_SETFL, fcntl(socket_server_fd, F_GETFL) & ~O_NONBLOCK );
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// Check if there were any error
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err_len = sizeof(int);
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ret = getsockopt(socket_server_fd,SOL_SOCKET,SO_ERROR,&err,&err_len);
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if(ret < 0) {
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printf("getsockopt failed : %s\n",strerror(errno));
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return -1;
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}
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if(err > 0) {
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printf("Connect error : %s\n",strerror(err));
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return -1;
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}
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return socket_server_fd;
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}
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int
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http_send_request( URL_t *url ) {
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HTTP_header_t *http_hdr;
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int fd;
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http_hdr = http_new_header();
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http_set_uri( http_hdr, url->file );
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http_set_field( http_hdr, "User-Agent: MPlayer");
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http_set_field( http_hdr, "Connection: closed");
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if( http_build_request( http_hdr )==NULL ) {
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return -1;
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}
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if( url->port==0 ) url->port = 80;
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fd = connect2Server( url->hostname, url->port );
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if( fd<0 ) {
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return -1;
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}
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write( fd, http_hdr->buffer, http_hdr->buffer_size );
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http_free( http_hdr );
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return fd;
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}
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HTTP_header_t *
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http_read_response( int fd ) {
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HTTP_header_t *http_hdr;
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char response[BUFFER_SIZE];
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int i;
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http_hdr = http_new_header();
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if( http_hdr==NULL ) {
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return NULL;
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}
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do {
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i = read( fd, response, BUFFER_SIZE );
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if( i<0 ) {
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printf("Read failed\n");
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http_free( http_hdr );
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return NULL;
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}
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if( i==0 ) {
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printf("http_read_response read 0 -ie- EOF\n");
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http_free( http_hdr );
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return NULL;
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}
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http_response_append( http_hdr, response, i );
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} while( !http_is_header_entire( http_hdr ) );
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http_response_parse( http_hdr );
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return http_hdr;
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}
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// By using the protocol, the extension of the file or the content-type
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// we might be able to guess the streaming type.
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int
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autodetectProtocol(URL_t *url, int *fd_out) {
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HTTP_header_t *http_hdr;
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int fd=-1;
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int i;
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int redirect;
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char *extension;
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char *content_type;
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char *next_url;
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char response[1024];
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do {
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*fd_out=-1;
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next_url = NULL;
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extension = NULL;
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content_type = NULL;
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redirect = 0;
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if( url==NULL ) return DEMUXER_TYPE_UNKNOWN;
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// Get the extension of the file if present
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if( url->file!=NULL ) {
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for( i=strlen(url->file) ; i>0 ; i-- ) {
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if( url->file[i]=='.' ) {
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extension=(url->file)+i+1;
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break;
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}
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}
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}
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extension=NULL;
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if( extension!=NULL ) {
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printf("Extension: %s\n", extension );
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// Look for the extension in the extensions table
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for( i=0 ; i<(sizeof(extensions_table)/sizeof(extensions_table[0])) ; i++ ) {
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if( !strcasecmp(extension, extensions_table[i].extension) ) {
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//if( url->port==0 ) url->port = 80;
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return extensions_table[i].demuxer_type;
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}
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}
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}
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// Checking for RTSP
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if( !strcasecmp(url->protocol, "rtsp") ) {
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printf("RTSP protocol not yet implemented!\n");
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return DEMUXER_TYPE_UNKNOWN;
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}
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// Checking for ASF
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if( !strncasecmp(url->protocol, "mms", 3) ) {
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//if( url->port==0 ) url->port = 80;
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return DEMUXER_TYPE_ASF;
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}
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// HTTP based protocol
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if( !strcasecmp(url->protocol, "http") ) {
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if( url->port==0 ) url->port = 80;
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fd = http_send_request( url );
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if( fd<0 ) {
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*fd_out=-1;
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return DEMUXER_TYPE_UNKNOWN;
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}
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http_hdr = http_read_response( fd );
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if( http_hdr==NULL ) {
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close( fd );
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*fd_out=-1;
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http_free( http_hdr );
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return DEMUXER_TYPE_UNKNOWN;
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}
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*fd_out=fd;
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http_debug_hdr( http_hdr );
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// Check if the response is an ICY status_code reason_phrase
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if( !strcasecmp(http_hdr->protocol, "ICY") ) {
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// Ok, we have detected an mp3 streaming
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http_free( http_hdr );
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return DEMUXER_TYPE_MPEG_PS;
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}
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switch( http_hdr->status_code ) {
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case 200: // OK
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// Look if we can use the Content-Type
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content_type = http_get_field( http_hdr, "Content-Type" );
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if( content_type!=NULL ) {
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printf("Content-Type: [%s]\n", content_type );
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printf("Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
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// Check in the mime type table for a demuxer type
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for( i=0 ; i<(sizeof(mime_type_table)/sizeof(mime_type_table[0])) ; i++ ) {
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if( !strcasecmp( content_type, mime_type_table[i].mime_type ) ) {
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http_free( http_hdr );
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return mime_type_table[i].demuxer_type;
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}
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}
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}
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break;
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// Redirect
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case 301: // Permanently
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case 302: // Temporarily
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// TODO: RFC 2616, recommand to detect infinite redirection loops
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next_url = http_get_field( http_hdr, "Location" );
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if( next_url!=NULL ) {
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close( fd );
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url_free( url );
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url = url_new( next_url );
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redirect = 1;
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}
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break;
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default:
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printf("Server returned %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
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close( fd );
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*fd_out=-1;
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http_free( http_hdr );
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return DEMUXER_TYPE_UNKNOWN;
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}
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} else {
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printf("Unknown protocol '%s'\n", url->protocol );
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return DEMUXER_TYPE_UNKNOWN;
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}
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} while( redirect );
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http_free( http_hdr );
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return DEMUXER_TYPE_UNKNOWN;
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}
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int
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streaming_bufferize( streaming_ctrl_t *streaming_ctrl, char *buffer, int size) {
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printf("streaming_bufferize\n");
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streaming_ctrl->buffer = (char*)malloc(size);
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if( streaming_ctrl->buffer==NULL ) {
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printf("Memory allocation failed\n");
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return -1;
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}
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memcpy( streaming_ctrl->buffer, buffer, size );
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streaming_ctrl->buffer_size = size;
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}
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int
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nop_streaming_read( int fd, char *buffer, int size, streaming_ctrl_t *stream_ctrl ) {
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int len=0;
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//printf("nop_streaming_read\n");
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if( stream_ctrl->buffer_size!=0 ) {
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int buffer_len = stream_ctrl->buffer_size-stream_ctrl->buffer_pos;
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printf("%d bytes in buffer\n", stream_ctrl->buffer_size);
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len = (size<buffer_len)?size:buffer_len;
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memcpy( buffer, (stream_ctrl->buffer)+(stream_ctrl->buffer_pos), len );
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stream_ctrl->buffer_pos += len;
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printf("buffer_pos = %d\n", stream_ctrl->buffer_pos );
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if( stream_ctrl->buffer_pos>=stream_ctrl->buffer_size ) {
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free( stream_ctrl->buffer );
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stream_ctrl->buffer = NULL;
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stream_ctrl->buffer_size = 0;
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stream_ctrl->buffer_pos = 0;
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printf("buffer cleaned\n");
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}
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printf("read %d bytes from buffer\n", len );
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}
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if( len<size ) {
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int ret;
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ret = read( fd, buffer+len, size-len );
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if( ret<0 ) {
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printf("nop_streaming_read error : %s\n",strerror(errno));
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}
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len += ret;
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//printf("read %d bytes from network\n", len );
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}
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return len;
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}
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int
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nop_streaming_seek( int fd, off_t pos, streaming_ctrl_t *stream_ctrl ) {
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return -1;
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}
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int
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nop_streaming_start( stream_t *stream ) {
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HTTP_header_t *http_hdr;
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int fd;
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if( stream==NULL ) return -1;
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fd = stream->fd;
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if( fd<0 ) {
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fd = http_send_request( stream->streaming_ctrl->url );
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if( fd<0 ) return -1;
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http_hdr = http_read_response( fd );
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if( http_hdr==NULL ) return -1;
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switch( http_hdr->status_code ) {
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case 200: // OK
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printf("Content-Type: [%s]\n", http_get_field(http_hdr, "Content-Type") );
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printf("Content-Length: [%s]\n", http_get_field(http_hdr, "Content-Length") );
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if( http_hdr->body_size>0 ) {
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if( streaming_bufferize( stream->streaming_ctrl, http_hdr->body, http_hdr->body_size )<0 ) {
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http_free( http_hdr );
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return -1;
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}
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}
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break;
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default:
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printf("Server return %d: %s\n", http_hdr->status_code, http_hdr->reason_phrase );
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close( fd );
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fd = -1;
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}
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stream->fd = fd;
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}
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http_free( http_hdr );
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stream->streaming_ctrl->streaming_read = nop_streaming_read;
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stream->streaming_ctrl->streaming_seek = nop_streaming_seek;
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stream->streaming_ctrl->prebuffer_size = 180000;
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// stream->streaming_ctrl->prebuffer_size = 0;
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stream->streaming_ctrl->buffering = 1;
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// stream->streaming_ctrl->buffering = 0;
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stream->streaming_ctrl->status = streaming_playing_e;
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return fd;
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}
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int
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streaming_start(stream_t *stream, URL_t *url, int demuxer_type) {
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int ret=-1;
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if( stream==NULL ) return -1;
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stream->streaming_ctrl = streaming_ctrl_new( );
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if( stream->streaming_ctrl==NULL ) {
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return -1;
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}
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stream->streaming_ctrl->url = url_copy(url);
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// stream->streaming_ctrl->demuxer_type = demuxer_type;
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stream->fd = -1;
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switch( demuxer_type ) {
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case DEMUXER_TYPE_ASF:
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// Send the appropriate HTTP request
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// Need to filter the network stream.
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// ASF raw stream is encapsulated.
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ret = asf_streaming_start( stream );
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break;
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case DEMUXER_TYPE_AVI:
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case DEMUXER_TYPE_MOV:
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case DEMUXER_TYPE_MPEG_ES:
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case DEMUXER_TYPE_MPEG_PS:
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// Generic start, doesn't need to filter
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// the network stream, it's a raw stream
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ret = nop_streaming_start( stream );
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break;
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case DEMUXER_TYPE_UNKNOWN:
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default:
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printf("Unable to detect the streaming type\n");
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ret = -1;
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}
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if( ret<0 ) {
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free( stream->streaming_ctrl );
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} else {
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// bufferize( stream );
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}
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return ret;
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}
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int
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streaming_stop( stream_t *stream ) {
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stream->streaming_ctrl->status = streaming_stopped_e;
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return 0;
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}
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