From 2effd27446662222cdb0acf2e2074247da3df177 Mon Sep 17 00:00:00 2001 From: Fabrice Bellard Date: Thu, 25 Jul 2002 16:48:44 +0000 Subject: added RTSP and RTP server support - added daemon mode as default (use -d for foreground mode) - added module support Originally committed as revision 812 to svn://svn.ffmpeg.org/ffmpeg/trunk --- ffserver.c | 2129 +++++++++++++++++++++++++++++++++++++++++++++++------------- 1 file changed, 1686 insertions(+), 443 deletions(-) (limited to 'ffserver.c') diff --git a/ffserver.c b/ffserver.c index d2390f27ea..c7b2bc5907 100644 --- a/ffserver.c +++ b/ffserver.c @@ -28,7 +28,6 @@ #include #include #include -#include #include #include #include @@ -36,6 +35,9 @@ #include #include #include +#include + +#include "ffserver.h" /* maximum number of simultaneous HTTP connections */ #define HTTP_MAX_CONNECTIONS 2000 @@ -44,30 +46,45 @@ enum HTTPState { HTTPSTATE_WAIT_REQUEST, HTTPSTATE_SEND_HEADER, HTTPSTATE_SEND_DATA_HEADER, - HTTPSTATE_SEND_DATA, + HTTPSTATE_SEND_DATA, /* sending TCP or UDP data */ HTTPSTATE_SEND_DATA_TRAILER, - HTTPSTATE_RECEIVE_DATA, - HTTPSTATE_WAIT_FEED, + HTTPSTATE_RECEIVE_DATA, + HTTPSTATE_WAIT_FEED, /* wait for data from the feed */ + HTTPSTATE_WAIT, /* wait before sending next packets */ + HTTPSTATE_WAIT_SHORT, /* short wait for short term + bandwidth limitation */ + HTTPSTATE_READY, + + RTSPSTATE_WAIT_REQUEST, + RTSPSTATE_SEND_REPLY, }; const char *http_state[] = { - "WAIT_REQUEST", - "SEND_HEADER", + "HTTP_WAIT_REQUEST", + "HTTP_SEND_HEADER", + "SEND_DATA_HEADER", "SEND_DATA", "SEND_DATA_TRAILER", "RECEIVE_DATA", "WAIT_FEED", + "WAIT", + "WAIT_SHORT", + "READY", + + "RTSP_WAIT_REQUEST", + "RTSP_SEND_REPLY", }; #define IOBUFFER_INIT_SIZE 8192 -#define PBUFFER_INIT_SIZE 8192 /* coef for exponential mean for bitrate estimation in statistics */ #define AVG_COEF 0.9 /* timeouts are in ms */ -#define REQUEST_TIMEOUT (15 * 1000) +#define HTTP_REQUEST_TIMEOUT (15 * 1000) +#define RTSP_REQUEST_TIMEOUT (3600 * 24 * 1000) + #define SYNC_TIMEOUT (10 * 1000) typedef struct { @@ -91,17 +108,19 @@ typedef struct HTTPContext { int feed_fd; /* input format handling */ AVFormatContext *fmt_in; + long start_time; /* In milliseconds - this wraps fairly often */ + INT64 first_pts; /* initial pts value */ + int pts_stream_index; /* stream we choose as clock reference */ /* output format handling */ struct FFStream *stream; /* -1 is invalid stream */ int feed_streams[MAX_STREAMS]; /* index of streams in the feed */ int switch_feed_streams[MAX_STREAMS]; /* index of streams in the feed */ int switch_pending; - AVFormatContext fmt_ctx; + AVFormatContext fmt_ctx; /* instance of FFStream for one user */ int last_packet_sent; /* true if last data packet was sent */ int suppress_log; int bandwidth; - long start_time; /* In milliseconds - this wraps fairly often */ DataRateData datarate; int wmp_client_id; char protocol[16]; @@ -109,8 +128,23 @@ typedef struct HTTPContext { char url[128]; int buffer_size; UINT8 *buffer; - int pbuffer_size; - UINT8 *pbuffer; + int is_packetized; /* if true, the stream is packetized */ + int packet_stream_index; /* current stream for output in state machine */ + + /* RTSP state specific */ + UINT8 *pb_buffer; /* XXX: use that in all the code */ + ByteIOContext *pb; + int seq; /* RTSP sequence number */ + + /* RTP state specific */ + enum RTSPProtocol rtp_protocol; + char session_id[32]; /* session id */ + AVFormatContext *rtp_ctx[MAX_STREAMS]; + URLContext *rtp_handles[MAX_STREAMS]; + /* RTP short term bandwidth limitation */ + int packet_byte_count; + int packet_start_time_us; /* used for short durations (a few + seconds max) */ } HTTPContext; /* each generated stream is described here */ @@ -124,7 +158,8 @@ enum StreamType { typedef struct FFStream { enum StreamType stream_type; char filename[1024]; /* stream filename */ - struct FFStream *feed; + struct FFStream *feed; /* feed we are using (can be null if + coming from file) */ AVOutputFormat *fmt; int nb_streams; int prebuffer; /* Number of millseconds early to start */ @@ -142,8 +177,10 @@ typedef struct FFStream { time_t pid_start; /* Of ffmpeg process */ char **child_argv; struct FFStream *next; + /* RTSP options */ + char *rtsp_option; /* feed specific */ - int feed_opened; /* true if someone if writing to feed */ + int feed_opened; /* true if someone is writing to the feed */ int is_feed; /* true if it is a feed */ int conns_served; INT64 bytes_served; @@ -158,23 +195,45 @@ typedef struct FeedData { float avg_frame_size; /* frame size averraged over last frames with exponential mean */ } FeedData; -struct sockaddr_in my_addr; +struct sockaddr_in my_http_addr; +struct sockaddr_in my_rtsp_addr; + char logfilename[1024]; HTTPContext *first_http_ctx; FFStream *first_feed; /* contains only feeds */ FFStream *first_stream; /* contains all streams, including feeds */ -static int handle_http(HTTPContext *c); +static void new_connection(int server_fd, int is_rtsp); +static void close_connection(HTTPContext *c); + +/* HTTP handling */ +static int handle_connection(HTTPContext *c); static int http_parse_request(HTTPContext *c); static int http_send_data(HTTPContext *c); static void compute_stats(HTTPContext *c); static int open_input_stream(HTTPContext *c, const char *info); static int http_start_receive_data(HTTPContext *c); static int http_receive_data(HTTPContext *c); +static int compute_send_delay(HTTPContext *c); + +/* RTSP handling */ +static int rtsp_parse_request(HTTPContext *c); +static void rtsp_cmd_describe(HTTPContext *c, const char *url); +static void rtsp_cmd_setup(HTTPContext *c, const char *url, RTSPHeader *h); +static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h); +static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h); +static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h); + +/* RTP handling */ +static HTTPContext *rtp_new_connection(HTTPContext *rtsp_c, + FFStream *stream, const char *session_id); +static int rtp_new_av_stream(HTTPContext *c, + int stream_index, struct sockaddr_in *dest_addr); static const char *my_program_name; static int ffserver_debug; +static int ffserver_daemon; static int no_launch; static int need_to_start_children; @@ -306,13 +365,10 @@ static void start_children(FFStream *feed) } } -/* main loop of the http server */ -static int http_server(struct sockaddr_in my_addr) +/* open a listening socket */ +static int socket_open_listen(struct sockaddr_in *my_addr) { - int server_fd, tmp, ret; - struct sockaddr_in from_addr; - struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 1], *poll_entry; - HTTPContext *c, **cp; + int server_fd, tmp; server_fd = socket(AF_INET,SOCK_STREAM,0); if (server_fd < 0) { @@ -323,7 +379,7 @@ static int http_server(struct sockaddr_in my_addr) tmp = 1; setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp)); - if (bind (server_fd, (struct sockaddr *) &my_addr, sizeof (my_addr)) < 0) { + if (bind (server_fd, (struct sockaddr *) my_addr, sizeof (*my_addr)) < 0) { perror ("bind"); close(server_fd); return -1; @@ -334,12 +390,31 @@ static int http_server(struct sockaddr_in my_addr) close(server_fd); return -1; } + fcntl(server_fd, F_SETFL, O_NONBLOCK); + + return server_fd; +} + + +/* main loop of the http server */ +static int http_server(void) +{ + int server_fd, ret, rtsp_server_fd, delay, delay1; + struct pollfd poll_table[HTTP_MAX_CONNECTIONS + 2], *poll_entry; + HTTPContext *c, *c_next; + + server_fd = socket_open_listen(&my_http_addr); + if (server_fd < 0) + return -1; + rtsp_server_fd = socket_open_listen(&my_rtsp_addr); + if (rtsp_server_fd < 0) + return -1; + http_log("ffserver started.\n"); start_children(first_feed); - fcntl(server_fd, F_SETFL, O_NONBLOCK); first_http_ctx = NULL; nb_connections = 0; first_http_ctx = NULL; @@ -349,40 +424,61 @@ static int http_server(struct sockaddr_in my_addr) poll_entry->events = POLLIN; poll_entry++; + poll_entry->fd = rtsp_server_fd; + poll_entry->events = POLLIN; + poll_entry++; + /* wait for events on each HTTP handle */ c = first_http_ctx; + delay = 1000; while (c != NULL) { int fd; fd = c->fd; switch(c->state) { - case HTTPSTATE_WAIT_REQUEST: + case HTTPSTATE_SEND_HEADER: + case RTSPSTATE_SEND_REPLY: c->poll_entry = poll_entry; poll_entry->fd = fd; - poll_entry->events = POLLIN; + poll_entry->events = POLLOUT; poll_entry++; break; - case HTTPSTATE_SEND_HEADER: case HTTPSTATE_SEND_DATA_HEADER: case HTTPSTATE_SEND_DATA: case HTTPSTATE_SEND_DATA_TRAILER: - c->poll_entry = poll_entry; - poll_entry->fd = fd; - poll_entry->events = POLLOUT; - poll_entry++; + if (!c->is_packetized) { + /* for TCP, we output as much as we can (may need to put a limit) */ + c->poll_entry = poll_entry; + poll_entry->fd = fd; + poll_entry->events = POLLOUT; + poll_entry++; + } else { + /* not strictly correct, but currently cannot add + more than one fd in poll entry */ + delay = 0; + } break; + case HTTPSTATE_WAIT_REQUEST: case HTTPSTATE_RECEIVE_DATA: - c->poll_entry = poll_entry; - poll_entry->fd = fd; - poll_entry->events = POLLIN; - poll_entry++; - break; case HTTPSTATE_WAIT_FEED: + case RTSPSTATE_WAIT_REQUEST: /* need to catch errors */ c->poll_entry = poll_entry; poll_entry->fd = fd; poll_entry->events = POLLIN;/* Maybe this will work */ poll_entry++; break; + case HTTPSTATE_WAIT: + c->poll_entry = NULL; + delay1 = compute_send_delay(c); + if (delay1 < delay) + delay = delay1; + break; + case HTTPSTATE_WAIT_SHORT: + c->poll_entry = NULL; + delay1 = 10; /* one tick wait XXX: 10 ms assumed */ + if (delay1 < delay) + delay = delay1; + break; default: c->poll_entry = NULL; break; @@ -393,7 +489,7 @@ static int http_server(struct sockaddr_in my_addr) /* wait for an event on one connection. We poll at least every second to handle timeouts */ do { - ret = poll(poll_table, poll_entry - poll_table, 1000); + ret = poll(poll_table, poll_entry - poll_table, delay); } while (ret == -1); cur_time = gettime_ms(); @@ -404,81 +500,153 @@ static int http_server(struct sockaddr_in my_addr) } /* now handle the events */ - - cp = &first_http_ctx; - while ((*cp) != NULL) { - c = *cp; - if (handle_http (c) < 0) { + for(c = first_http_ctx; c != NULL; c = c_next) { + c_next = c->next; + if (handle_connection(c) < 0) { /* close and free the connection */ log_connection(c); - close(c->fd); - if (c->fmt_in) - av_close_input_file(c->fmt_in); - *cp = c->next; - nb_bandwidth -= c->bandwidth; - av_free(c->buffer); - av_free(c->pbuffer); - av_free(c); - nb_connections--; - } else { - cp = &c->next; + close_connection(c); } } - /* new connection request ? */ poll_entry = poll_table; + /* new HTTP connection request ? */ if (poll_entry->revents & POLLIN) { - int fd, len; - - len = sizeof(from_addr); - fd = accept(server_fd, (struct sockaddr *)&from_addr, - &len); - if (fd >= 0) { - fcntl(fd, F_SETFL, O_NONBLOCK); - /* XXX: should output a warning page when coming - close to the connection limit */ - if (nb_connections >= nb_max_connections) { - c = NULL; - } else { - /* add a new connection */ - c = av_mallocz(sizeof(HTTPContext)); - if (c) { - c->next = first_http_ctx; - first_http_ctx = c; - c->fd = fd; - c->poll_entry = NULL; - c->from_addr = from_addr; - c->state = HTTPSTATE_WAIT_REQUEST; - c->buffer = av_malloc(c->buffer_size = IOBUFFER_INIT_SIZE); - c->pbuffer = av_malloc(c->pbuffer_size = PBUFFER_INIT_SIZE); - if (!c->buffer || !c->pbuffer) { - av_free(c->buffer); - av_free(c->pbuffer); - av_freep(&c); - } else { - c->buffer_ptr = c->buffer; - c->buffer_end = c->buffer + c->buffer_size; - c->timeout = cur_time + REQUEST_TIMEOUT; - c->start_time = cur_time; - nb_connections++; - } - } - } - if (!c) { - close(fd); - } - } + new_connection(server_fd, 0); } poll_entry++; + /* new RTSP connection request ? */ + if (poll_entry->revents & POLLIN) { + new_connection(rtsp_server_fd, 1); + } } } -static int handle_http(HTTPContext *c) +/* start waiting for a new HTTP/RTSP request */ +static void start_wait_request(HTTPContext *c, int is_rtsp) { - int len; + c->buffer_ptr = c->buffer; + c->buffer_end = c->buffer + c->buffer_size - 1; /* leave room for '\0' */ + + if (is_rtsp) { + c->timeout = cur_time + RTSP_REQUEST_TIMEOUT; + c->state = RTSPSTATE_WAIT_REQUEST; + } else { + c->timeout = cur_time + HTTP_REQUEST_TIMEOUT; + c->state = HTTPSTATE_WAIT_REQUEST; + } +} + +static void new_connection(int server_fd, int is_rtsp) +{ + struct sockaddr_in from_addr; + int fd, len; + HTTPContext *c = NULL; + + len = sizeof(from_addr); + fd = accept(server_fd, (struct sockaddr *)&from_addr, + &len); + if (fd < 0) + return; + fcntl(fd, F_SETFL, O_NONBLOCK); + + /* XXX: should output a warning page when coming + close to the connection limit */ + if (nb_connections >= nb_max_connections) + goto fail; + + /* add a new connection */ + c = av_mallocz(sizeof(HTTPContext)); + if (!c) + goto fail; + + c->next = first_http_ctx; + first_http_ctx = c; + c->fd = fd; + c->poll_entry = NULL; + c->from_addr = from_addr; + c->buffer_size = IOBUFFER_INIT_SIZE; + c->buffer = av_malloc(c->buffer_size); + if (!c->buffer) + goto fail; + nb_connections++; + + start_wait_request(c, is_rtsp); + + return; + + fail: + if (c) { + av_free(c->buffer); + av_free(c); + } + close(fd); +} + +static void close_connection(HTTPContext *c) +{ + HTTPContext **cp, *c1; + int i, nb_streams; + AVFormatContext *ctx; + URLContext *h; + AVStream *st; + + /* remove connection from list */ + cp = &first_http_ctx; + while ((*cp) != NULL) { + c1 = *cp; + if (c1 == c) { + *cp = c->next; + } else { + cp = &c1->next; + } + } + + /* remove connection associated resources */ + if (c->fd >= 0) + close(c->fd); + if (c->fmt_in) { + /* close each frame parser */ + for(i=0;ifmt_in->nb_streams;i++) { + st = c->fmt_in->streams[i]; + if (st->codec.codec) { + avcodec_close(&st->codec); + } + } + av_close_input_file(c->fmt_in); + } + + /* free RTP output streams if any */ + nb_streams = 0; + if (c->stream) + nb_streams = c->stream->nb_streams; + + for(i=0;irtp_ctx[i]; + if (ctx) { + av_write_trailer(ctx); + av_free(ctx); + } + h = c->rtp_handles[i]; + if (h) { + url_close(h); + } + } + + nb_bandwidth -= c->bandwidth; + av_freep(&c->pb_buffer); + av_free(c->buffer); + av_free(c); + nb_connections--; +} + +static int handle_connection(HTTPContext *c) +{ + int len, ret; switch(c->state) { case HTTPSTATE_WAIT_REQUEST: + case RTSPSTATE_WAIT_REQUEST: /* timeout ? */ if ((c->timeout - cur_time) < 0) return -1; @@ -503,7 +671,12 @@ static int handle_http(HTTPContext *c) if ((ptr >= c->buffer + 2 && !memcmp(ptr-2, "\n\n", 2)) || (ptr >= c->buffer + 4 && !memcmp(ptr-4, "\r\n\r\n", 4))) { /* request found : parse it and reply */ - if (http_parse_request(c) < 0) + if (c->state == HTTPSTATE_WAIT_REQUEST) { + ret = http_parse_request(c); + } else { + ret = rtsp_parse_request(c); + } + if (ret < 0) return -1; } else if (ptr >= c->buffer_end) { /* request too long: cannot do anything */ @@ -516,13 +689,14 @@ static int handle_http(HTTPContext *c) if (c->poll_entry->revents & (POLLERR | POLLHUP)) return -1; - /* no need to read if no events */ + /* no need to write if no events */ if (!(c->poll_entry->revents & POLLOUT)) return 0; len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr); if (len < 0) { if (errno != EAGAIN && errno != EINTR) { /* error : close connection */ + av_freep(&c->pb_buffer); return -1; } } else { @@ -531,10 +705,12 @@ static int handle_http(HTTPContext *c) c->stream->bytes_served += len; c->data_count += len; if (c->buffer_ptr >= c->buffer_end) { + av_freep(&c->pb_buffer); /* if error, exit */ - if (c->http_error) + if (c->http_error) { return -1; - /* all the buffer was send : synchronize to the incoming stream */ + } + /* all the buffer was sent : synchronize to the incoming stream */ c->state = HTTPSTATE_SEND_DATA_HEADER; c->buffer_ptr = c->buffer_end = c->buffer; } @@ -544,12 +720,17 @@ static int handle_http(HTTPContext *c) case HTTPSTATE_SEND_DATA: case HTTPSTATE_SEND_DATA_HEADER: case HTTPSTATE_SEND_DATA_TRAILER: - /* no need to read if no events */ - if (c->poll_entry->revents & (POLLERR | POLLHUP)) - return -1; - - if (!(c->poll_entry->revents & POLLOUT)) - return 0; + /* for packetized output, we consider we can always write (the + input streams sets the speed). It may be better to verify + that we do not rely too much on the kernel queues */ + if (!c->is_packetized) { + if (c->poll_entry->revents & (POLLERR | POLLHUP)) + return -1; + + /* no need to read if no events */ + if (!(c->poll_entry->revents & POLLOUT)) + return 0; + } if (http_send_data(c) < 0) return -1; break; @@ -569,6 +750,45 @@ static int handle_http(HTTPContext *c) /* nothing to do, we'll be waken up by incoming feed packets */ break; + + case HTTPSTATE_WAIT: + /* if the delay expired, we can send new packets */ + if (compute_send_delay(c) <= 0) + c->state = HTTPSTATE_SEND_DATA; + break; + case HTTPSTATE_WAIT_SHORT: + /* just return back to send data */ + c->state = HTTPSTATE_SEND_DATA; + break; + + case RTSPSTATE_SEND_REPLY: + if (c->poll_entry->revents & (POLLERR | POLLHUP)) { + av_freep(&c->pb_buffer); + return -1; + } + /* no need to write if no events */ + if (!(c->poll_entry->revents & POLLOUT)) + return 0; + len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr); + if (len < 0) { + if (errno != EAGAIN && errno != EINTR) { + /* error : close connection */ + av_freep(&c->pb_buffer); + return -1; + } + } else { + c->buffer_ptr += len; + c->data_count += len; + if (c->buffer_ptr >= c->buffer_end) { + /* all the buffer was sent : wait for a new request */ + av_freep(&c->pb_buffer); + start_wait_request(c, 1); + } + } + break; + case HTTPSTATE_READY: + /* nothing to do */ + break; default: return -1; } @@ -708,6 +928,35 @@ static void do_switch_stream(HTTPContext *c, int i) c->switch_feed_streams[i] = -1; } +/* XXX: factorize in utils.c ? */ +/* XXX: take care with different space meaning */ +static void skip_spaces(const char **pp) +{ + const char *p; + p = *pp; + while (*p == ' ' || *p == '\t') + p++; + *pp = p; +} + +static void get_word(char *buf, int buf_size, const char **pp) +{ + const char *p; + char *q; + + p = *pp; + skip_spaces(&p); + q = buf; + while (!isspace(*p) && *p != '\0') { + if ((q - buf) < buf_size - 1) + *q++ = *p; + p++; + } + if (buf_size > 0) + *q = '\0'; + *pp = p; +} + /* parse http request and prepare header */ static int http_parse_request(HTTPContext *c) { @@ -716,6 +965,7 @@ static int http_parse_request(HTTPContext *c) int doing_asx; int doing_asf_redirector; int doing_ram; + int doing_rtsp_redirector; char cmd[32]; char info[1024], *filename; char url[1024], *q; @@ -728,14 +978,7 @@ static int http_parse_request(HTTPContext *c) char *useragent = 0; p = c->buffer; - q = cmd; - while (!isspace(*p) && *p != '\0') { - if ((q - cmd) < sizeof(cmd) - 1) - *q++ = *p; - p++; - } - *q = '\0'; - + get_word(cmd, sizeof(cmd), (const char **)&p); pstrcpy(c->method, sizeof(c->method), cmd); if (!strcmp(cmd, "GET")) @@ -745,25 +988,10 @@ static int http_parse_request(HTTPContext *c) else return -1; - while (isspace(*p)) p++; - q = url; - while (!isspace(*p) && *p != '\0') { - if ((q - url) < sizeof(url) - 1) - *q++ = *p; - p++; - } - *q = '\0'; - + get_word(url, sizeof(url), (const char **)&p); pstrcpy(c->url, sizeof(c->url), url); - while (isspace(*p)) p++; - q = protocol; - while (!isspace(*p) && *p != '\0') { - if ((q - protocol) < sizeof(protocol) - 1) - *q++ = *p; - p++; - } - *q = '\0'; + get_word(protocol, sizeof(protocol), (const char **)&p); if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1")) return -1; @@ -820,6 +1048,33 @@ static int http_parse_request(HTTPContext *c) doing_ram = 0; } + if (strlen(filename) > 5 && + strcmp(".rtsp", filename + strlen(filename) - 5) == 0) { + char file1[1024]; + char file2[1024]; + char *p; + + doing_rtsp_redirector = 1; + /* compute filename by matching without the file extensions */ + pstrcpy(file1, sizeof(file1), filename); + p = strrchr(file1, '.'); + if (p) + *p = '\0'; + for(stream = first_stream; stream != NULL; stream = stream->next) { + pstrcpy(file2, sizeof(file2), stream->filename); + p = strrchr(file2, '.'); + if (p) + *p = '\0'; + if (!strcmp(file1, file2)) { + pstrcpy(url, sizeof(url), stream->filename); + filename = url; + break; + } + } + } else { + doing_rtsp_redirector = 0; + } + stream = first_stream; while (stream != NULL) { if (!strcmp(stream->filename, filename)) @@ -902,7 +1157,8 @@ static int http_parse_request(HTTPContext *c) return 0; } - if (doing_asx || doing_ram || doing_asf_redirector) { + if (doing_asx || doing_ram || doing_asf_redirector || + doing_rtsp_redirector) { char *hostinfo = 0; for (p = c->buffer; *p && *p != '\r' && *p != '\n'; ) { @@ -958,8 +1214,23 @@ static int http_parse_request(HTTPContext *c) q += sprintf(q, "[Reference]\r\n"); q += sprintf(q, "Ref1=http://%s/%s%s\r\n", hostbuf, filename, info); - } else + } else if (doing_rtsp_redirector) { + char hostname[256], *p; + /* extract only hostname */ + pstrcpy(hostname, sizeof(hostname), hostbuf); + p = strrchr(hostname, ':'); + if (p) + *p = '\0'; + q += sprintf(q, "HTTP/1.0 200 RTSP Redirect follows\r\n"); + /* XXX: incorrect mime type ? */ + q += sprintf(q, "Content-type: application/x-rtsp\r\n"); + q += sprintf(q, "\r\n"); + q += sprintf(q, "rtsp://%s:%d/%s\r\n", + hostname, ntohs(my_rtsp_addr.sin_port), + filename); + } else { av_abort(); + } /* prepare output buffer */ c->buffer_ptr = c->buffer; @@ -1116,7 +1387,7 @@ static int http_parse_request(HTTPContext *c) return 0; } -static int fmt_bytecount(char *q, INT64 count) +static void fmt_bytecount(ByteIOContext *pb, INT64 count) { static const char *suffix = " kMGTP"; const char *s; @@ -1124,64 +1395,68 @@ static int fmt_bytecount(char *q, INT64 count) for (s = suffix; count >= 100000 && s[1]; count /= 1000, s++) { } - return sprintf(q, "%lld%c", count, *s); + url_fprintf(pb, "%lld%c", count, *s); } static void compute_stats(HTTPContext *c) { HTTPContext *c1; FFStream *stream; - char *q, *p; + char *p; time_t ti; - int i; - char *new_buffer; + int i, len; + ByteIOContext pb1, *pb = &pb1; - new_buffer = av_malloc(65536); - if (new_buffer) { - av_free(c->buffer); - c->buffer_size = 65536; - c->buffer = new_buffer; + if (url_open_dyn_buf(pb) < 0) { + /* XXX: return an error ? */ c->buffer_ptr = c->buffer; - c->buffer_end = c->buffer + c->buffer_size; + c->buffer_end = c->buffer; + return; } - q = c->buffer; - q += sprintf(q, "HTTP/1.0 200 OK\r\n"); - q += sprintf(q, "Content-type: %s\r\n", "text/html"); - q += sprintf(q, "Pragma: no-cache\r\n"); - q += sprintf(q, "\r\n"); + url_fprintf(pb, "HTTP/1.0 200 OK\r\n"); + url_fprintf(pb, "Content-type: %s\r\n", "text/html"); + url_fprintf(pb, "Pragma: no-cache\r\n"); + url_fprintf(pb, "\r\n"); - q += sprintf(q, "FFServer Status\n"); + url_fprintf(pb, "FFServer Status\n"); if (c->stream->feed_filename) { - q += sprintf(q, "\n", c->stream->feed_filename); + url_fprintf(pb, "\n", c->stream->feed_filename); } - q += sprintf(q, "\n"); - q += sprintf(q, "

FFServer Status

\n"); + url_fprintf(pb, "\n"); + url_fprintf(pb, "

FFServer Status

\n"); /* format status */ - q += sprintf(q, "

Available Streams

\n"); - q += sprintf(q, "\n"); - q += sprintf(q, "
PathServed
Conns
bytes		FormatBit rate
kbits/s		Video
kbits/s
Codec		Audio
kbits/s
Codec		Feed\n"); + url_fprintf(pb, "

Available Streams

\n"); + url_fprintf(pb, "\n"); + url_fprintf(pb, "
PathServed
Conns
bytes		FormatBit rate
kbits/s		Video
kbits/s
Codec		Audio
kbits/s
Codec		Feed\n"); stream = first_stream; while (stream != NULL) { char sfilename[1024]; char *eosf; if (stream->feed != stream) { - pstrcpy(sfilename, sizeof(sfilename) - 1, stream->filename); + pstrcpy(sfilename, sizeof(sfilename) - 10, stream->filename); eosf = sfilename + strlen(sfilename); if (eosf - sfilename >= 4) { if (strcmp(eosf - 4, ".asf") == 0) { strcpy(eosf - 4, ".asx"); } else if (strcmp(eosf - 3, ".rm") == 0) { strcpy(eosf - 3, ".ram"); + } else if (stream->fmt == &rtp_mux) { + /* generate a sample RTSP director - maybe should + generate a .sdp file ? */ + eosf = strrchr(sfilename, '.'); + if (!eosf) + eosf = sfilename + strlen(sfilename); + strcpy(eosf, ".rtsp"); } } - q += sprintf(q, "
%s ", + url_fprintf(pb, "
%s ", sfilename, stream->filename); - q += sprintf(q, " %d ", + url_fprintf(pb, " %d ", stream->conns_served); - q += fmt_bytecount(q, stream->bytes_served); + fmt_bytecount(pb, stream->bytes_served); switch(stream->stream_type) { case STREAM_TYPE_LIVE: { @@ -1216,58 +1491,63 @@ static void compute_stats(HTTPContext *c) av_abort(); } } - q += sprintf(q, " %s %d %d %s %s %d %s %s", + url_fprintf(pb, " %s %d %d %s %s %d %s %s", stream->fmt->name, (audio_bit_rate + video_bit_rate) / 1000, video_bit_rate / 1000, video_codec_name, video_codec_name_extra, audio_bit_rate / 1000, audio_codec_name, audio_codec_name_extra); if (stream->feed) { - q += sprintf(q, "%s", stream->feed->filename); + url_fprintf(pb, "%s", stream->feed->filename); } else { - q += sprintf(q, "%s", stream->feed_filename); + url_fprintf(pb, "%s", stream->feed_filename); } - q += sprintf(q, "\n"); + url_fprintf(pb, "\n"); } break; default: - q += sprintf(q, " - - - - \n"); + url_fprintf(pb, " - - - - \n"); break; } } stream = stream->next; } - q += sprintf(q, "
\n"); + url_fprintf(pb, "
\n"); stream = first_stream; while (stream != NULL) { if (stream->feed == stream) { - q += sprintf(q, "

Feed %s

", stream->filename); + url_fprintf(pb, "

Feed %s

", stream->filename); if (stream->pid) { - FILE *pid_stat; - char ps_cmd[64]; - - q += sprintf(q, "Running as pid %d.\n", stream->pid); - -#ifdef linux - /* This is somewhat linux specific I guess */ - snprintf(ps_cmd, sizeof(ps_cmd), "ps -o \"%%cpu,bsdtime\" --no-headers %d", stream->pid); - - pid_stat = popen(ps_cmd, "r"); - if (pid_stat) { - char cpuperc[10]; - char cpuused[64]; + url_fprintf(pb, "Running as pid %d.\n", stream->pid); - if (fscanf(pid_stat, "%10s %64s", cpuperc, cpuused) == 2) { - q += sprintf(q, "Currently using %s%% of the cpu. Total time used %s.\n", - cpuperc, cpuused); +#if defined(linux) && !defined(CONFIG_NOCUTILS) + { + FILE *pid_stat; + char ps_cmd[64]; + + /* This is somewhat linux specific I guess */ + snprintf(ps_cmd, sizeof(ps_cmd), + "ps -o \"%%cpu,cputime\" --no-headers %d", + stream->pid); + + pid_stat = popen(ps_cmd, "r"); + if (pid_stat) { + char cpuperc[10]; + char cpuused[64]; + + if (fscanf(pid_stat, "%10s %64s", cpuperc, + cpuused) == 2) { + url_fprintf(pb, "Currently using %s%% of the cpu. Total time used %s.\n", + cpuperc, cpuused); + } + fclose(pid_stat); } - fclose(pid_stat); } #endif - q += sprintf(q, "

"); + url_fprintf(pb, "

"); } - q += sprintf(q, "
Streamtypekbits/scodecParameters\n"); + url_fprintf(pb, "
Streamtypekbits/scodecParameters\n"); for (i = 0; i < stream->nb_streams; i++) { AVStream *st = stream->streams[i]; @@ -1289,10 +1569,10 @@ static void compute_stats(HTTPContext *c) default: av_abort(); } - q += sprintf(q, "
%d%s%d%s%s\n", + url_fprintf(pb, "
%d%s%d%s%s\n", i, type, st->codec.bit_rate/1000, codec ? codec->name : "", parameters); } - q += sprintf(q, "
\n"); + url_fprintf(pb, "
\n"); } stream = stream->next; @@ -1307,9 +1587,9 @@ static void compute_stats(HTTPContext *c) /* feed status */ stream = first_feed; while (stream != NULL) { - q += sprintf(q, "

Feed '%s'

\n", stream->filename); - q += sprintf(q, "\n"); - q += sprintf(q, "
ParametersFrame countSizeAvg bitrate (kbits/s)\n"); + url_fprintf(pb, "

Feed '%s'

\n", stream->filename); + url_fprintf(pb, "\n"); + url_fprintf(pb, "
ParametersFrame countSizeAvg bitrate (kbits/s)\n"); for(i=0;inb_streams;i++) { AVStream *st = stream->streams[i]; FeedData *fdata = st->priv_data; @@ -1319,98 +1599,90 @@ static void compute_stats(HTTPContext *c) avg = fdata->avg_frame_size * (float)enc->rate * 8.0; if (enc->codec->type == CODEC_TYPE_AUDIO && enc->frame_size > 0) avg /= enc->frame_size; - q += sprintf(q, "
%s %d %Ld %0.1f\n", + url_fprintf(pb, "
%s %d %Ld %0.1f\n", buf, enc->frame_number, fdata->data_count, avg / 1000.0); } - q += sprintf(q, "
\n"); + url_fprintf(pb, "
\n"); stream = stream->next_feed; } } #endif /* connection status */ - q += sprintf(q, "

Connection Status

\n"); + url_fprintf(pb, "

Connection Status

\n"); - q += sprintf(q, "Number of connections: %d / %d
\n", + url_fprintf(pb, "Number of connections: %d / %d
\n", nb_connections, nb_max_connections); - q += sprintf(q, "Bandwidth in use: %dk / %dk
\n", + url_fprintf(pb, "Bandwidth in use: %dk / %dk
\n", nb_bandwidth, nb_max_bandwidth); - q += sprintf(q, "\n"); - q += sprintf(q, "
#FileIPStateTarget bits/secActual bits/secBytes transferred\n"); + url_fprintf(pb, "\n"); + url_fprintf(pb, "
#FileIPProtoStateTarget bits/secActual bits/secBytes transferred\n"); c1 = first_http_ctx; i = 0; - while (c1 != NULL && q < (char *) c->buffer + c->buffer_size - 2048) { + while (c1 != NULL) { int bitrate; int j; bitrate = 0; - for (j = 0; j < c1->stream->nb_streams; j++) { - if (c1->feed_streams[j] >= 0) { - bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec.bit_rate; + if (c1->stream) { + for (j = 0; j < c1->stream->nb_streams; j++) { + if (!c1->stream->feed) { + bitrate += c1->stream->streams[j]->codec.bit_rate; + } else { + if (c1->feed_streams[j] >= 0) { + bitrate += c1->stream->feed->streams[c1->feed_streams[j]]->codec.bit_rate; + } + } } } i++; p = inet_ntoa(c1->from_addr.sin_addr); - q += sprintf(q, "
%d%s%s %s %s ", - i, c1->stream->filename, - c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", - p, - http_state[c1->state]); - q += fmt_bytecount(q, bitrate); - q += sprintf(q, ""); - q += fmt_bytecount(q, compute_datarate(&c1->datarate, c1->data_count) * 8); - q += sprintf(q, ""); - q += fmt_bytecount(q, c1->data_count); - *q++ = '\n'; + url_fprintf(pb, "
%d%s%s%s%s%s", + i, + c1->stream ? c1->stream->filename : "", + c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "", + p, + c1->protocol, + http_state[c1->state]); + fmt_bytecount(pb, bitrate); + url_fprintf(pb, ""); + fmt_bytecount(pb, compute_datarate(&c1->datarate, c1->data_count) * 8); + url_fprintf(pb, ""); + fmt_bytecount(pb, c1->data_count); + url_fprintf(pb, "\n"); c1 = c1->next; } - q += sprintf(q, "
\n"); + url_fprintf(pb, "
\n"); /* date */ ti = time(NULL); p = ctime(&ti); - q += sprintf(q, "
Generated at %s", p); - q += sprintf(q, "\n\n"); + url_fprintf(pb, "
Generated at %s", p); + url_fprintf(pb, "\n\n"); - c->buffer_ptr = c->buffer; - c->buffer_end = q; + len = url_close_dyn_buf(pb, &c->pb_buffer); + c->buffer_ptr = c->pb_buffer; + c->buffer_end = c->pb_buffer + len; } - -static void http_write_packet(void *opaque, - unsigned char *buf, int size) +/* check if the parser needs to be opened for stream i */ +static void open_parser(AVFormatContext *s, int i) { - HTTPContext *c = opaque; - - if (c->buffer_ptr == c->buffer_end || !c->buffer_ptr) - c->buffer_ptr = c->buffer_end = c->buffer; - - if (c->buffer_end - c->buffer + size > c->buffer_size) { - int new_buffer_size = c->buffer_size * 2; - UINT8 *new_buffer; - - if (new_buffer_size <= c->buffer_end - c->buffer + size) { - new_buffer_size = c->buffer_end - c->buffer + size + c->buffer_size; - } + AVStream *st = s->streams[i]; + AVCodec *codec; - new_buffer = av_malloc(new_buffer_size); - if (new_buffer) { - memcpy(new_buffer, c->buffer, c->buffer_end - c->buffer); - c->buffer_end += (new_buffer - c->buffer); - c->buffer_ptr += (new_buffer - c->buffer); - av_free(c->buffer); - c->buffer = new_buffer; - c->buffer_size = new_buffer_size; - } else { - av_abort(); + if (!st->codec.codec) { + codec = avcodec_find_decoder(st->codec.codec_id); + if (codec && (codec->capabilities & CODEC_CAP_PARSE_ONLY)) { + st->codec.parse_only = 1; + if (avcodec_open(&st->codec, codec) < 0) { + st->codec.parse_only = 0; + } } } - - memcpy(c->buffer_end, buf, size); - c->buffer_end += size; } static int open_input_stream(HTTPContext *c, const char *info) @@ -1418,7 +1690,7 @@ static int open_input_stream(HTTPContext *c, const char *info) char buf[128]; char input_filename[1024]; AVFormatContext *s; - int buf_size; + int buf_size, i; INT64 stream_pos; /* find file name */ @@ -1448,131 +1720,253 @@ static int open_input_stream(HTTPContext *c, const char *info) return -1; /* open stream */ - if (av_open_input_file(&s, input_filename, NULL, buf_size, NULL) < 0) + if (av_open_input_file(&s, input_filename, NULL, buf_size, NULL) < 0) { + http_log("%s not found", input_filename); return -1; + } c->fmt_in = s; + + /* open each parser */ + for(i=0;inb_streams;i++) + open_parser(s, i); + + /* choose stream as clock source (we favorize video stream if + present) for packet sending */ + c->pts_stream_index = 0; + for(i=0;istream->nb_streams;i++) { + if (c->pts_stream_index == 0 && + c->stream->streams[i]->codec.codec_type == CODEC_TYPE_VIDEO) { + c->pts_stream_index = i; + } + } if (c->fmt_in->iformat->read_seek) { c->fmt_in->iformat->read_seek(c->fmt_in, stream_pos); } - - // printf("stream %s opened pos=%0.6f\n", input_filename, stream_pos / 1000000.0); + /* set the start time (needed for maxtime and RTP packet timing) */ + c->start_time = cur_time; + c->first_pts = AV_NOPTS_VALUE; + printf("stream %s opened pos=%0.6f\n", input_filename, stream_pos / 1000000.0); return 0; } -static int http_prepare_data(HTTPContext *c) -{ - int i; +/* currently desactivated because the new PTS handling is not + satisfactory yet */ +//#define AV_READ_FRAME +#ifdef AV_READ_FRAME - switch(c->state) { - case HTTPSTATE_SEND_DATA_HEADER: - memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx)); - pstrcpy(c->fmt_ctx.author, sizeof(c->fmt_ctx.author), c->stream->author); - pstrcpy(c->fmt_ctx.comment, sizeof(c->fmt_ctx.comment), c->stream->comment); - pstrcpy(c->fmt_ctx.copyright, sizeof(c->fmt_ctx.copyright), c->stream->copyright); - pstrcpy(c->fmt_ctx.title, sizeof(c->fmt_ctx.title), c->stream->title); - - if (c->stream->feed) { - /* open output stream by using specified codecs */ - c->fmt_ctx.oformat = c->stream->fmt; - c->fmt_ctx.nb_streams = c->stream->nb_streams; - for(i=0;ifmt_ctx.nb_streams;i++) { - AVStream *st; - st = av_mallocz(sizeof(AVStream)); - c->fmt_ctx.streams[i] = st; - if (c->stream->feed == c->stream) - memcpy(st, c->stream->streams[i], sizeof(AVStream)); - else - memcpy(st, c->stream->feed->streams[c->stream->feed_streams[i]], sizeof(AVStream)); +/* XXX: generalize that in ffmpeg for picture/audio/data. Currently + the return packet MUST NOT be freed */ +int av_read_frame(AVFormatContext *s, AVPacket *pkt) +{ + AVStream *st; + int len, ret, old_nb_streams, i; - st->codec.frame_number = 0; /* XXX: should be done in - AVStream, not in codec */ + /* see if remaining frames must be parsed */ + for(;;) { + if (s->cur_len > 0) { + st = s->streams[s->cur_pkt.stream_index]; + len = avcodec_parse_frame(&st->codec, &pkt->data, &pkt->size, + s->cur_ptr, s->cur_len); + if (len < 0) { + /* error: get next packet */ + s->cur_len = 0; + } else { + s->cur_ptr += len; + s->cur_len -= len; + if (pkt->size) { + /* init pts counter if not done */ + if (st->pts.den == 0) { + switch(st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + st->pts_incr = (INT64)s->pts_den; + av_frac_init(&st->pts, st->pts.val, 0, + (INT64)s->pts_num * st->codec.sample_rate); + break; + case CODEC_TYPE_VIDEO: + st->pts_incr = (INT64)s->pts_den * FRAME_RATE_BASE; + av_frac_init(&st->pts, st->pts.val, 0, + (INT64)s->pts_num * st->codec.frame_rate); + break; + default: + av_abort(); + } + } + + /* a frame was read: return it */ + pkt->pts = st->pts.val; +#if 0 + printf("add pts=%Lx num=%Lx den=%Lx incr=%Lx\n", + st->pts.val, st->pts.num, st->pts.den, st->pts_incr); +#endif + switch(st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + av_frac_add(&st->pts, st->pts_incr * st->codec.frame_size); + break; + case CODEC_TYPE_VIDEO: + av_frac_add(&st->pts, st->pts_incr); + break; + default: + av_abort(); + } + pkt->stream_index = s->cur_pkt.stream_index; + /* we use the codec indication because it is + more accurate than the demux flags */ + pkt->flags = 0; + if (st->codec.key_frame) + pkt->flags |= PKT_FLAG_KEY; + return 0; + } } - c->got_key_frame = 0; } else { - /* open output stream by using codecs in specified file */ - c->fmt_ctx.oformat = c->stream->fmt; - c->fmt_ctx.nb_streams = c->fmt_in->nb_streams; - for(i=0;ifmt_ctx.nb_streams;i++) { - AVStream *st; - st = av_mallocz(sizeof(AVStream)); - c->fmt_ctx.streams[i] = st; - memcpy(st, c->fmt_in->streams[i], sizeof(AVStream)); - st->codec.frame_number = 0; /* XXX: should be done in - AVStream, not in codec */ + /* free previous packet */ + av_free_packet(&s->cur_pkt); + + old_nb_streams = s->nb_streams; + ret = av_read_packet(s, &s->cur_pkt); + if (ret) + return ret; + /* open parsers for each new streams */ + for(i = old_nb_streams; i < s->nb_streams; i++) + open_parser(s, i); + st = s->streams[s->cur_pkt.stream_index]; + + /* update current pts (XXX: dts handling) from packet, or + use current pts if none given */ + if (s->cur_pkt.pts != AV_NOPTS_VALUE) { + av_frac_set(&st->pts, s->cur_pkt.pts); + } else { + s->cur_pkt.pts = st->pts.val; + } + if (!st->codec.codec) { + /* no codec opened: just return the raw packet */ + *pkt = s->cur_pkt; + + /* no codec opened: just update the pts by considering we + have one frame and free the packet */ + if (st->pts.den == 0) { + switch(st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + st->pts_incr = (INT64)s->pts_den * st->codec.frame_size; + av_frac_init(&st->pts, st->pts.val, 0, + (INT64)s->pts_num * st->codec.sample_rate); + break; + case CODEC_TYPE_VIDEO: + st->pts_incr = (INT64)s->pts_den * FRAME_RATE_BASE; + av_frac_init(&st->pts, st->pts.val, 0, + (INT64)s->pts_num * st->codec.frame_rate); + break; + default: + av_abort(); + } + } + av_frac_add(&st->pts, st->pts_incr); + return 0; + } else { + s->cur_ptr = s->cur_pkt.data; + s->cur_len = s->cur_pkt.size; } - c->got_key_frame = 0; } - init_put_byte(&c->fmt_ctx.pb, c->pbuffer, c->pbuffer_size, - 1, c, NULL, http_write_packet, NULL); - c->fmt_ctx.pb.is_streamed = 1; - /* prepare header */ - av_write_header(&c->fmt_ctx); - c->state = HTTPSTATE_SEND_DATA; + } +} + +static int compute_send_delay(HTTPContext *c) +{ + INT64 cur_pts, delta_pts, next_pts; + int delay1; + + /* compute current pts value from system time */ + cur_pts = ((INT64)(cur_time - c->start_time) * c->fmt_in->pts_den) / + (c->fmt_in->pts_num * 1000LL); + /* compute the delta from the stream we choose as + main clock (we do that to avoid using explicit + buffers to do exact packet reordering for each + stream */ + /* XXX: really need to fix the number of streams */ + if (c->pts_stream_index >= c->fmt_in->nb_streams) + next_pts = cur_pts; + else + next_pts = c->fmt_in->streams[c->pts_stream_index]->pts.val; + delta_pts = next_pts - cur_pts; + if (delta_pts <= 0) { + delay1 = 0; + } else { + delay1 = (delta_pts * 1000 * c->fmt_in->pts_num) / c->fmt_in->pts_den; + } + return delay1; +} +#else + +/* just fall backs */ +int av_read_frame(AVFormatContext *s, AVPacket *pkt) +{ + return av_read_packet(s, pkt); +} + +static int compute_send_delay(HTTPContext *c) +{ + return 0; +} + +#endif + +static int http_prepare_data(HTTPContext *c) +{ + int i, len, ret; + AVFormatContext *ctx; + + switch(c->state) { + case HTTPSTATE_SEND_DATA_HEADER: + memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx)); + pstrcpy(c->fmt_ctx.author, sizeof(c->fmt_ctx.author), + c->stream->author); + pstrcpy(c->fmt_ctx.comment, sizeof(c->fmt_ctx.comment), + c->stream->comment); + pstrcpy(c->fmt_ctx.copyright, sizeof(c->fmt_ctx.copyright), + c->stream->copyright); + pstrcpy(c->fmt_ctx.title, sizeof(c->fmt_ctx.title), + c->stream->title); + + /* open output stream by using specified codecs */ + c->fmt_ctx.oformat = c->stream->fmt; + c->fmt_ctx.nb_streams = c->stream->nb_streams; + for(i=0;ifmt_ctx.nb_streams;i++) { + AVStream *st; + st = av_mallocz(sizeof(AVStream)); + c->fmt_ctx.streams[i] = st; + /* if file or feed, then just take streams from FFStream struct */ + if (!c->stream->feed || + c->stream->feed == c->stream) + memcpy(st, c->stream->streams[i], sizeof(AVStream)); + else + memcpy(st, c->stream->feed->streams[c->stream->feed_streams[i]], + sizeof(AVStream)); + st->codec.frame_number = 0; /* XXX: should be done in + AVStream, not in codec */ + } + c->got_key_frame = 0; + + /* prepare header and save header data in a stream */ + if (url_open_dyn_buf(&c->fmt_ctx.pb) < 0) { + /* XXX: potential leak */ + return -1; + } + c->fmt_ctx.pb.is_streamed = 1; + + av_write_header(&c->fmt_ctx); + + len = url_close_dyn_buf(&c->fmt_ctx.pb, &c->pb_buffer); + c->buffer_ptr = c->pb_buffer; + c->buffer_end = c->pb_buffer + len; + + c->state = HTTPSTATE_SEND_DATA; c->last_packet_sent = 0; break; case HTTPSTATE_SEND_DATA: /* find a new packet */ -#if 0 - fifo_total_size = http_fifo_write_count - c->last_http_fifo_write_count; - if (fifo_total_size >= ((3 * FIFO_MAX_SIZE) / 4)) { - /* overflow : resync. We suppose that wptr is at this - point a pointer to a valid packet */ - c->rptr = http_fifo.wptr; - c->got_key_frame = 0; - } - - start_rptr = c->rptr; - if (fifo_read(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &c->rptr) < 0) - return 0; - payload_size = ntohs(hdr.payload_size); - payload = av_malloc(payload_size); - if (fifo_read(&http_fifo, payload, payload_size, &c->rptr) < 0) { - /* cannot read all the payload */ - av_free(payload); - c->rptr = start_rptr; - return 0; - } - - c->last_http_fifo_write_count = http_fifo_write_count - - fifo_size(&http_fifo, c->rptr); - - if (c->stream->stream_type != STREAM_TYPE_MASTER) { - /* test if the packet can be handled by this format */ - ret = 0; - for(i=0;ifmt_ctx.nb_streams;i++) { - AVStream *st = c->fmt_ctx.streams[i]; - if (test_header(&hdr, &st->codec)) { - /* only begin sending when got a key frame */ - if (st->codec.key_frame) - c->got_key_frame |= 1 << i; - if (c->got_key_frame & (1 << i)) { - ret = c->fmt_ctx.format->write_packet(&c->fmt_ctx, i, - payload, payload_size); - } - break; - } - } - if (ret) { - /* must send trailer now */ - c->state = HTTPSTATE_SEND_DATA_TRAILER; - } - } else { - /* master case : send everything */ - char *q; - q = c->buffer; - memcpy(q, &hdr, sizeof(hdr)); - q += sizeof(hdr); - memcpy(q, payload, payload_size); - q += payload_size; - c->buffer_ptr = c->buffer; - c->buffer_end = q; - } - av_free(payload); -#endif { AVPacket pkt; - + /* read a packet from the input stream */ if (c->stream->feed) { ffm_set_write_index(c->fmt_in, @@ -1584,95 +1978,150 @@ static int http_prepare_data(HTTPContext *c) c->stream->max_time + c->start_time - cur_time < 0) { /* We have timed out */ c->state = HTTPSTATE_SEND_DATA_TRAILER; - } else if (av_read_packet(c->fmt_in, &pkt) < 0) { - if (c->stream->feed && c->stream->feed->feed_opened) { - /* if coming from feed, it means we reached the end of the - ffm file, so must wait for more data */ - c->state = HTTPSTATE_WAIT_FEED; - return 1; /* state changed */ - } else { - /* must send trailer now because eof or error */ - c->state = HTTPSTATE_SEND_DATA_TRAILER; - } } else { - /* send it to the appropriate stream */ - if (c->stream->feed) { - /* if coming from a feed, select the right stream */ - if (c->switch_pending) { - c->switch_pending = 0; + if (c->is_packetized) { + if (compute_send_delay(c) > 0) { + c->state = HTTPSTATE_WAIT; + return 1; /* state changed */ + } + } + if (av_read_frame(c->fmt_in, &pkt) < 0) { + if (c->stream->feed && c->stream->feed->feed_opened) { + /* if coming from feed, it means we reached the end of the + ffm file, so must wait for more data */ + c->state = HTTPSTATE_WAIT_FEED; + return 1; /* state changed */ + } else { + /* must send trailer now because eof or error */ + c->state = HTTPSTATE_SEND_DATA_TRAILER; + } + } else { + /* update first pts if needed */ + if (c->first_pts == AV_NOPTS_VALUE) + c->first_pts = pkt.pts; + + /* send it to the appropriate stream */ + if (c->stream->feed) { + /* if coming from a feed, select the right stream */ + if (c->switch_pending) { + c->switch_pending = 0; + for(i=0;istream->nb_streams;i++) { + if (c->switch_feed_streams[i] == pkt.stream_index) { + if (pkt.flags & PKT_FLAG_KEY) { + do_switch_stream(c, i); + } + } + if (c->switch_feed_streams[i] >= 0) { + c->switch_pending = 1; + } + } + } for(i=0;istream->nb_streams;i++) { - if (c->switch_feed_streams[i] == pkt.stream_index) { + if (c->feed_streams[i] == pkt.stream_index) { + pkt.stream_index = i; if (pkt.flags & PKT_FLAG_KEY) { - do_switch_stream(c, i); + c->got_key_frame |= 1 << i; + } + /* See if we have all the key frames, then + * we start to send. This logic is not quite + * right, but it works for the case of a + * single video stream with one or more + * audio streams (for which every frame is + * typically a key frame). + */ + if (!c->stream->send_on_key || + ((c->got_key_frame + 1) >> c->stream->nb_streams)) { + goto send_it; } - } - if (c->switch_feed_streams[i] >= 0) { - c->switch_pending = 1; } } - } - for(i=0;istream->nb_streams;i++) { - if (c->feed_streams[i] == pkt.stream_index) { - pkt.stream_index = i; - if (pkt.flags & PKT_FLAG_KEY) { - c->got_key_frame |= 1 << i; - } - /* See if we have all the key frames, then - * we start to send. This logic is not quite - * right, but it works for the case of a - * single video stream with one or more - * audio streams (for which every frame is - * typically a key frame). - */ - if (!c->stream->send_on_key || ((c->got_key_frame + 1) >> c->stream->nb_streams)) { - goto send_it; - } + } else { + AVCodecContext *codec; + + send_it: + /* specific handling for RTP: we use several + output stream (one for each RTP + connection). XXX: need more abstract handling */ + if (c->is_packetized) { + c->packet_stream_index = pkt.stream_index; + ctx = c->rtp_ctx[c->packet_stream_index]; + codec = &ctx->streams[0]->codec; + } else { + ctx = &c->fmt_ctx; + /* Fudge here */ + codec = &ctx->streams[pkt.stream_index]->codec; } - } - } else { - AVCodecContext *codec; - send_it: - /* Fudge here */ - codec = &c->fmt_ctx.streams[pkt.stream_index]->codec; - - codec->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0); - + + codec->key_frame = ((pkt.flags & PKT_FLAG_KEY) != 0); + #ifdef PJSG - if (codec->codec_type == CODEC_TYPE_AUDIO) { - codec->frame_size = (codec->sample_rate * pkt.duration + 500000) / 1000000; - /* printf("Calculated size %d, from sr %d, duration %d\n", codec->frame_size, codec->sample_rate, pkt.duration); */ + if (codec->codec_type == CODEC_TYPE_AUDIO) { + codec->frame_size = (codec->sample_rate * pkt.duration + 500000) / 1000000; + /* printf("Calculated size %d, from sr %d, duration %d\n", codec->frame_size, codec->sample_rate, pkt.duration); */ + } +#endif + + if (c->is_packetized) { + ret = url_open_dyn_packet_buf(&ctx->pb, + url_get_max_packet_size(c->rtp_handles[c->packet_stream_index])); + c->packet_byte_count = 0; + c->packet_start_time_us = av_gettime(); + } else { + ret = url_open_dyn_buf(&ctx->pb); + } + if (ret < 0) { + /* XXX: potential leak */ + return -1; + } + if (av_write_packet(ctx, &pkt, pkt.pts)) { + c->state = HTTPSTATE_SEND_DATA_TRAILER; + } + + len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer); + c->buffer_ptr = c->pb_buffer; + c->buffer_end = c->pb_buffer + len; + + codec->frame_number++; } +#ifndef AV_READ_FRAME + av_free_packet(&pkt); #endif - - if (av_write_packet(&c->fmt_ctx, &pkt, 0)) - c->state = HTTPSTATE_SEND_DATA_TRAILER; - - codec->frame_number++; } - - av_free_packet(&pkt); } } break; default: case HTTPSTATE_SEND_DATA_TRAILER: /* last packet test ? */ - if (c->last_packet_sent) + if (c->last_packet_sent || c->is_packetized) return -1; + ctx = &c->fmt_ctx; /* prepare header */ - av_write_trailer(&c->fmt_ctx); + if (url_open_dyn_buf(&ctx->pb) < 0) { + /* XXX: potential leak */ + return -1; + } + av_write_trailer(ctx); + len = url_close_dyn_buf(&ctx->pb, &c->pb_buffer); + c->buffer_ptr = c->pb_buffer; + c->buffer_end = c->pb_buffer + len; + c->last_packet_sent = 1; break; } return 0; } +/* in bit/s */ +#define SHORT_TERM_BANDWIDTH 8000000 + /* should convert the format at the same time */ static int http_send_data(HTTPContext *c) { - int len, ret; - + int len, ret, dt; + while (c->buffer_ptr >= c->buffer_end) { + av_freep(&c->pb_buffer); ret = http_prepare_data(c); if (ret < 0) return -1; @@ -1684,20 +2133,58 @@ static int http_send_data(HTTPContext *c) } } - if (c->buffer_end > c->buffer_ptr) { - len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr); - if (len < 0) { - if (errno != EAGAIN && errno != EINTR) { - /* error : close connection */ - return -1; + if (c->buffer_ptr < c->buffer_end) { + if (c->is_packetized) { + /* RTP/UDP data output */ + len = c->buffer_end - c->buffer_ptr; + if (len < 4) { + /* fail safe - should never happen */ + fail1: + c->buffer_ptr = c->buffer_end; + return 0; + } + len = (c->buffer_ptr[0] << 24) | + (c->buffer_ptr[1] << 16) | + (c->buffer_ptr[2] << 8) | + (c->buffer_ptr[3]); + if (len > (c->buffer_end - c->buffer_ptr)) + goto fail1; + + /* short term bandwidth limitation */ + dt = av_gettime() - c->packet_start_time_us; + if (dt < 1) + dt = 1; + + if ((c->packet_byte_count + len) * (INT64)1000000 >= + (SHORT_TERM_BANDWIDTH / 8) * (INT64)dt) { + /* bandwidth overflow : wait at most one tick and retry */ + c->state = HTTPSTATE_WAIT_SHORT; + return 0; } - } else { + + c->buffer_ptr += 4; + url_write(c->rtp_handles[c->packet_stream_index], + c->buffer_ptr, len); c->buffer_ptr += len; - c->data_count += len; - update_datarate(&c->datarate, c->data_count); - if (c->stream) - c->stream->bytes_served += len; + c->packet_byte_count += len; + } else { + /* TCP data output */ + len = write(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr); + if (len < 0) { + if (errno != EAGAIN && errno != EINTR) { + /* error : close connection */ + return -1; + } else { + return 0; + } + } else { + c->buffer_ptr += len; + } } + c->data_count += len; + update_datarate(&c->datarate, c->data_count); + if (c->stream) + c->stream->bytes_served += len; } return 0; } @@ -1827,6 +2314,635 @@ static int http_receive_data(HTTPContext *c) return -1; } +/********************************************************************/ +/* RTSP handling */ + +static void rtsp_reply_header(HTTPContext *c, enum RTSPStatusCode error_number) +{ + const char *str; + time_t ti; + char *p; + char buf2[32]; + + switch(error_number) { +#define DEF(n, c, s) case c: str = s; break; +#include "rtspcodes.h" +#undef DEF + default: + str = "Unknown Error"; + break; + } + + url_fprintf(c->pb, "RTSP/1.0 %d %s\r\n", error_number, str); + url_fprintf(c->pb, "CSeq: %d\r\n", c->seq); + + /* output GMT time */ + ti = time(NULL); + p = ctime(&ti); + strcpy(buf2, p); + p = buf2 + strlen(p) - 1; + if (*p == '\n') + *p = '\0'; + url_fprintf(c->pb, "Date: %s GMT\r\n", buf2); +} + +static void rtsp_reply_error(HTTPContext *c, enum RTSPStatusCode error_number) +{ + rtsp_reply_header(c, error_number); + url_fprintf(c->pb, "\r\n"); +} + +static int rtsp_parse_request(HTTPContext *c) +{ + const char *p, *p1, *p2; + char cmd[32]; + char url[1024]; + char protocol[32]; + char line[1024]; + ByteIOContext pb1; + int len; + RTSPHeader header1, *header = &header1; + + c->buffer_ptr[0] = '\0'; + p = c->buffer; + + get_word(cmd, sizeof(cmd), &p); + get_word(url, sizeof(url), &p); + get_word(protocol, sizeof(protocol), &p); + + pstrcpy(c->method, sizeof(c->method), cmd); + pstrcpy(c->url, sizeof(c->url), url); + pstrcpy(c->protocol, sizeof(c->protocol), protocol); + + c->pb = &pb1; + if (url_open_dyn_buf(c->pb) < 0) { + /* XXX: cannot do more */ + c->pb = NULL; /* safety */ + return -1; + } + + /* check version name */ + if (strcmp(protocol, "RTSP/1.0") != 0) { + rtsp_reply_error(c, RTSP_STATUS_VERSION); + goto the_end; + } + + /* parse each header line */ + memset(header, 0, sizeof(RTSPHeader)); + /* skip to next line */ + while (*p != '\n' && *p != '\0') + p++; + if (*p == '\n') + p++; + while (*p != '\0') { + p1 = strchr(p, '\n'); + if (!p1) + break; + p2 = p1; + if (p2 > p && p2[-1] == '\r') + p2--; + /* skip empty line */ + if (p2 == p) + break; + len = p2 - p; + if (len > sizeof(line) - 1) + len = sizeof(line) - 1; + memcpy(line, p, len); + line[len] = '\0'; + rtsp_parse_line(header, line); + p = p1 + 1; + } + + /* handle sequence number */ + c->seq = header->seq; + + if (!strcmp(cmd, "DESCRIBE")) { + rtsp_cmd_describe(c, url); + } else if (!strcmp(cmd, "SETUP")) { + rtsp_cmd_setup(c, url, header); + } else if (!strcmp(cmd, "PLAY")) { + rtsp_cmd_play(c, url, header); + } else if (!strcmp(cmd, "PAUSE")) { + rtsp_cmd_pause(c, url, header); + } else if (!strcmp(cmd, "TEARDOWN")) { + rtsp_cmd_teardown(c, url, header); + } else { + rtsp_reply_error(c, RTSP_STATUS_METHOD); + } + the_end: + len = url_close_dyn_buf(c->pb, &c->pb_buffer); + c->pb = NULL; /* safety */ + if (len < 0) { + /* XXX: cannot do more */ + return -1; + } + c->buffer_ptr = c->pb_buffer; + c->buffer_end = c->pb_buffer + len; + c->state = RTSPSTATE_SEND_REPLY; + return 0; +} + +static int prepare_sdp_description(HTTPContext *c, + FFStream *stream, UINT8 **pbuffer) +{ + ByteIOContext pb1, *pb = &pb1; + struct sockaddr_in my_addr; + int len, i, payload_type; + const char *ipstr, *title, *mediatype; + AVStream *st; + + len = sizeof(my_addr); + getsockname(c->fd, (struct sockaddr *)&my_addr, &len); + ipstr = inet_ntoa(my_addr.sin_addr); + + if (url_open_dyn_buf(pb) < 0) + return -1; + + /* general media info */ + + url_fprintf(pb, "v=0\n"); + url_fprintf(pb, "o=- 0 0 IN IP4 %s\n", ipstr); + title = stream->title; + if (title[0] == '\0') + title = "No Title"; + url_fprintf(pb, "s=%s\n", title); + if (stream->comment[0] != '\0') + url_fprintf(pb, "i=%s\n", stream->comment); + + /* for each stream, we output the necessary info */ + for(i = 0; i < stream->nb_streams; i++) { + st = stream->streams[i]; + switch(st->codec.codec_type) { + case CODEC_TYPE_AUDIO: + mediatype = "audio"; + break; + case CODEC_TYPE_VIDEO: + mediatype = "video"; + break; + default: + mediatype = "application"; + break; + } + /* XXX: the port indication is not correct (but should be correct + for broadcast) */ + payload_type = rtp_get_payload_type(&st->codec); + + url_fprintf(pb, "m=%s %d RTP/AVP %d\n", + mediatype, 0, payload_type); + url_fprintf(pb, "a=control:streamid=%d\n", i); + } + return url_close_dyn_buf(pb, pbuffer); +} + +static void rtsp_cmd_describe(HTTPContext *c, const char *url) +{ + FFStream *stream; + char path1[1024]; + const char *path; + UINT8 *content; + int content_length; + + /* find which url is asked */ + url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); + path = path1; + if (*path == '/') + path++; + + for(stream = first_stream; stream != NULL; stream = stream->next) { + if (!stream->is_feed && stream->fmt == &rtp_mux && + !strcmp(path, stream->filename)) { + goto found; + } + } + /* no stream found */ + rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ + return; + + found: + /* prepare the media description in sdp format */ + content_length = prepare_sdp_description(c, stream, &content); + if (content_length < 0) { + rtsp_reply_error(c, RTSP_STATUS_INTERNAL); + return; + } + rtsp_reply_header(c, RTSP_STATUS_OK); + url_fprintf(c->pb, "Content-Type: application/sdp\r\n"); + url_fprintf(c->pb, "Content-Length: %d\r\n", content_length); + url_fprintf(c->pb, "\r\n"); + put_buffer(c->pb, content, content_length); +} + +static HTTPContext *find_rtp_session(const char *session_id) +{ + HTTPContext *c; + + if (session_id[0] == '\0') + return NULL; + + for(c = first_http_ctx; c != NULL; c = c->next) { + if (!strcmp(c->session_id, session_id)) + return c; + } + return NULL; +} + +RTSPTransportField *find_transport(RTSPHeader *h, enum RTSPProtocol protocol) +{ + RTSPTransportField *th; + int i; + + for(i=0;inb_transports;i++) { + th = &h->transports[i]; + if (th->protocol == protocol) + return th; + } + return NULL; +} + +static void rtsp_cmd_setup(HTTPContext *c, const char *url, + RTSPHeader *h) +{ + FFStream *stream; + int stream_index, port; + char buf[1024]; + char path1[1024]; + const char *path; + HTTPContext *rtp_c; + RTSPTransportField *th; + struct sockaddr_in dest_addr; + RTSPActionServerSetup setup; + + /* find which url is asked */ + url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); + path = path1; + if (*path == '/') + path++; + + /* now check each stream */ + for(stream = first_stream; stream != NULL; stream = stream->next) { + if (!stream->is_feed && stream->fmt == &rtp_mux) { + /* accept aggregate filenames only if single stream */ + if (!strcmp(path, stream->filename)) { + if (stream->nb_streams != 1) { + rtsp_reply_error(c, RTSP_STATUS_AGGREGATE); + return; + } + stream_index = 0; + goto found; + } + + for(stream_index = 0; stream_index < stream->nb_streams; + stream_index++) { + snprintf(buf, sizeof(buf), "%s/streamid=%d", + stream->filename, stream_index); + if (!strcmp(path, buf)) + goto found; + } + } + } + /* no stream found */ + rtsp_reply_error(c, RTSP_STATUS_SERVICE); /* XXX: right error ? */ + return; + found: + + /* generate session id if needed */ + if (h->session_id[0] == '\0') { + snprintf(h->session_id, sizeof(h->session_id), + "%08x%08x", (int)random(), (int)random()); + } + + /* find rtp session, and create it if none found */ + rtp_c = find_rtp_session(h->session_id); + if (!rtp_c) { + rtp_c = rtp_new_connection(c, stream, h->session_id); + if (!rtp_c) { + rtsp_reply_error(c, RTSP_STATUS_BANDWIDTH); + return; + } + + /* open input stream */ + if (open_input_stream(rtp_c, "") < 0) { + rtsp_reply_error(c, RTSP_STATUS_INTERNAL); + return; + } + + /* always prefer UDP */ + th = find_transport(h, RTSP_PROTOCOL_RTP_UDP); + if (!th) { + th = find_transport(h, RTSP_PROTOCOL_RTP_TCP); + if (!th) { + rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); + return; + } + } + rtp_c->rtp_protocol = th->protocol; + } + + /* test if stream is OK (test needed because several SETUP needs + to be done for a given file) */ + if (rtp_c->stream != stream) { + rtsp_reply_error(c, RTSP_STATUS_SERVICE); + return; + } + + /* test if stream is already set up */ + if (rtp_c->rtp_ctx[stream_index]) { + rtsp_reply_error(c, RTSP_STATUS_STATE); + return; + } + + /* check transport */ + th = find_transport(h, rtp_c->rtp_protocol); + if (!th || (th->protocol == RTSP_PROTOCOL_RTP_UDP && + th->client_port_min <= 0)) { + rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); + return; + } + + /* setup default options */ + setup.transport_option[0] = '\0'; + dest_addr = rtp_c->from_addr; + dest_addr.sin_port = htons(th->client_port_min); + + /* add transport option if needed */ + if (ff_rtsp_callback) { + setup.ipaddr = ntohl(dest_addr.sin_addr.s_addr); + if (ff_rtsp_callback(RTSP_ACTION_SERVER_SETUP, rtp_c->session_id, + (char *)&setup, sizeof(setup), + stream->rtsp_option) < 0) { + rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); + return; + } + dest_addr.sin_addr.s_addr = htonl(setup.ipaddr); + } + + /* setup stream */ + if (rtp_new_av_stream(rtp_c, stream_index, &dest_addr) < 0) { + rtsp_reply_error(c, RTSP_STATUS_TRANSPORT); + return; + } + + /* now everything is OK, so we can send the connection parameters */ + rtsp_reply_header(c, RTSP_STATUS_OK); + /* session ID */ + url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id); + + switch(rtp_c->rtp_protocol) { + case RTSP_PROTOCOL_RTP_UDP: + port = rtp_get_local_port(rtp_c->rtp_handles[stream_index]); + url_fprintf(c->pb, "Transport: RTP/AVP/UDP;unicast;" + "client_port=%d-%d;server_port=%d-%d", + th->client_port_min, th->client_port_min + 1, + port, port + 1); + break; + case RTSP_PROTOCOL_RTP_TCP: + url_fprintf(c->pb, "Transport: RTP/AVP/TCP;interleaved=%d-%d", + stream_index * 2, stream_index * 2 + 1); + break; + default: + break; + } + if (setup.transport_option[0] != '\0') { + url_fprintf(c->pb, ";%s", setup.transport_option); + } + url_fprintf(c->pb, "\r\n"); + + + url_fprintf(c->pb, "\r\n"); +} + + +/* find an rtp connection by using the session ID. Check consistency + with filename */ +static HTTPContext *find_rtp_session_with_url(const char *url, + const char *session_id) +{ + HTTPContext *rtp_c; + char path1[1024]; + const char *path; + + rtp_c = find_rtp_session(session_id); + if (!rtp_c) + return NULL; + + /* find which url is asked */ + url_split(NULL, 0, NULL, 0, NULL, path1, sizeof(path1), url); + path = path1; + if (*path == '/') + path++; + if (strcmp(path, rtp_c->stream->filename) != 0) + return NULL; + return rtp_c; +} + +static void rtsp_cmd_play(HTTPContext *c, const char *url, RTSPHeader *h) +{ + HTTPContext *rtp_c; + + rtp_c = find_rtp_session_with_url(url, h->session_id); + if (!rtp_c) { + rtsp_reply_error(c, RTSP_STATUS_SESSION); + return; + } + + if (rtp_c->state != HTTPSTATE_SEND_DATA && + rtp_c->state != HTTPSTATE_WAIT_FEED && + rtp_c->state != HTTPSTATE_READY) { + rtsp_reply_error(c, RTSP_STATUS_STATE); + return; + } + + rtp_c->state = HTTPSTATE_SEND_DATA; + + /* now everything is OK, so we can send the connection parameters */ + rtsp_reply_header(c, RTSP_STATUS_OK); + /* session ID */ + url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id); + url_fprintf(c->pb, "\r\n"); +} + +static void rtsp_cmd_pause(HTTPContext *c, const char *url, RTSPHeader *h) +{ + HTTPContext *rtp_c; + + rtp_c = find_rtp_session_with_url(url, h->session_id); + if (!rtp_c) { + rtsp_reply_error(c, RTSP_STATUS_SESSION); + return; + } + + if (rtp_c->state != HTTPSTATE_SEND_DATA && + rtp_c->state != HTTPSTATE_WAIT_FEED) { + rtsp_reply_error(c, RTSP_STATUS_STATE); + return; + } + + rtp_c->state = HTTPSTATE_READY; + + /* now everything is OK, so we can send the connection parameters */ + rtsp_reply_header(c, RTSP_STATUS_OK); + /* session ID */ + url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id); + url_fprintf(c->pb, "\r\n"); +} + +static void rtsp_cmd_teardown(HTTPContext *c, const char *url, RTSPHeader *h) +{ + HTTPContext *rtp_c; + + rtp_c = find_rtp_session_with_url(url, h->session_id); + if (!rtp_c) { + rtsp_reply_error(c, RTSP_STATUS_SESSION); + return; + } + + /* abort the session */ + close_connection(rtp_c); + + if (ff_rtsp_callback) { + ff_rtsp_callback(RTSP_ACTION_SERVER_TEARDOWN, rtp_c->session_id, + NULL, 0, + rtp_c->stream->rtsp_option); + } + + /* now everything is OK, so we can send the connection parameters */ + rtsp_reply_header(c, RTSP_STATUS_OK); + /* session ID */ + url_fprintf(c->pb, "Session: %s\r\n", rtp_c->session_id); + url_fprintf(c->pb, "\r\n"); +} + + +/********************************************************************/ +/* RTP handling */ + +static HTTPContext *rtp_new_connection(HTTPContext *rtsp_c, + FFStream *stream, const char *session_id) +{ + HTTPContext *c = NULL; + + /* XXX: should output a warning page when coming + close to the connection limit */ + if (nb_connections >= nb_max_connections) + goto fail; + + /* add a new connection */ + c = av_mallocz(sizeof(HTTPContext)); + if (!c) + goto fail; + + c->fd = -1; + c->poll_entry = NULL; + c->from_addr = rtsp_c->from_addr; + c->buffer_size = IOBUFFER_INIT_SIZE; + c->buffer = av_malloc(c->buffer_size); + if (!c->buffer) + goto fail; + nb_connections++; + c->stream = stream; + pstrcpy(c->session_id, sizeof(c->session_id), session_id); + c->state = HTTPSTATE_READY; + c->is_packetized = 1; + /* protocol is shown in statistics */ + pstrcpy(c->protocol, sizeof(c->protocol), "RTP"); + + c->next = first_http_ctx; + first_http_ctx = c; + return c; + + fail: + if (c) { + av_free(c->buffer); + av_free(c); + } + return NULL; +} + +/* add a new RTP stream in an RTP connection (used in RTSP SETUP + command). if dest_addr is NULL, then TCP tunneling in RTSP is + used. */ +static int rtp_new_av_stream(HTTPContext *c, + int stream_index, struct sockaddr_in *dest_addr) +{ + AVFormatContext *ctx; + AVStream *st; + char *ipaddr; + URLContext *h; + UINT8 *dummy_buf; + + /* now we can open the relevant output stream */ + ctx = av_mallocz(sizeof(AVFormatContext)); + if (!ctx) + return -1; + ctx->oformat = &rtp_mux; + + st = av_mallocz(sizeof(AVStream)); + if (!st) + goto fail; + ctx->nb_streams = 1; + ctx->streams[0] = st; + + if (!c->stream->feed || + c->stream->feed == c->stream) { + memcpy(st, c->stream->streams[stream_index], sizeof(AVStream)); + } else { + memcpy(st, + c->stream->feed->streams[c->stream->feed_streams[stream_index]], + sizeof(AVStream)); + } + + if (dest_addr) { + /* build destination RTP address */ + ipaddr = inet_ntoa(dest_addr->sin_addr); + + snprintf(ctx->filename, sizeof(ctx->filename), + "rtp://%s:%d", ipaddr, ntohs(dest_addr->sin_port)); + + printf("open %s\n", ctx->filename); + + if (url_open(&h, ctx->filename, URL_WRONLY) < 0) + goto fail; + c->rtp_handles[stream_index] = h; + } else { + goto fail; + } + + /* normally, no packets should be output here, but the packet size may be checked */ + if (url_open_dyn_packet_buf(&ctx->pb, + url_get_max_packet_size(h)) < 0) { + /* XXX: close stream */ + goto fail; + } + if (av_write_header(ctx) < 0) { + fail: + if (h) + url_close(h); + av_free(ctx); + return -1; + } + url_close_dyn_buf(&ctx->pb, &dummy_buf); + av_free(dummy_buf); + + c->rtp_ctx[stream_index] = ctx; + return 0; +} + +/********************************************************************/ +/* ffserver initialization */ + +AVStream *add_av_stream1(FFStream *stream, AVCodecContext *codec) +{ + AVStream *fst; + + fst = av_mallocz(sizeof(AVStream)); + if (!fst) + return NULL; + fst->priv_data = av_mallocz(sizeof(FeedData)); + memcpy(&fst->codec, codec, sizeof(AVCodecContext)); + stream->streams[stream->nb_streams++] = fst; + return fst; +} + /* return the stream number in the feed */ int add_av_stream(FFStream *feed, AVStream *st) @@ -1862,17 +2978,66 @@ int add_av_stream(FFStream *feed, } } - fst = av_mallocz(sizeof(AVStream)); + fst = add_av_stream1(feed, av); if (!fst) return -1; - fst->priv_data = av_mallocz(sizeof(FeedData)); - memcpy(&fst->codec, av, sizeof(AVCodecContext)); - feed->streams[feed->nb_streams++] = fst; return feed->nb_streams - 1; found: return i; } +void remove_stream(FFStream *stream) +{ + FFStream **ps; + ps = &first_stream; + while (*ps != NULL) { + if (*ps == stream) { + *ps = (*ps)->next; + } else { + ps = &(*ps)->next; + } + } +} + +/* compute the needed AVStream for each file */ +void build_file_streams(void) +{ + FFStream *stream, *stream_next; + AVFormatContext *infile; + int i; + + /* gather all streams */ + for(stream = first_stream; stream != NULL; stream = stream_next) { + stream_next = stream->next; + if (stream->stream_type == STREAM_TYPE_LIVE && + !stream->feed) { + /* the stream comes from a file */ + /* try to open the file */ + /* open stream */ + if (av_open_input_file(&infile, stream->feed_filename, + NULL, 0, NULL) < 0) { + http_log("%s not found", stream->feed_filename); + /* remove stream (no need to spend more time on it) */ + fail: + remove_stream(stream); + } else { + /* find all the AVStreams inside and reference them in + 'stream' */ + if (av_find_stream_info(infile) < 0) { + http_log("Could not find codec parameters from '%s'", + stream->feed_filename); + av_close_input_file(infile); + goto fail; + } + for(i=0;inb_streams;i++) { + add_av_stream1(stream, &infile->streams[i]->codec); + } + av_close_input_file(infile); + } + } + } +} + /* compute the needed AVStream for each feed */ void build_feed_streams(void) { @@ -1884,6 +3049,7 @@ void build_feed_streams(void) feed = stream->feed; if (feed) { if (!stream->is_feed) { + /* we handle a stream coming from a feed */ for(i=0;inb_streams;i++) { stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]); } @@ -2060,6 +3226,30 @@ int opt_video_codec(const char *arg) return p->id; } +/* simplistic plugin support */ + +void load_module(const char *filename) +{ + void *dll; + void (*init_func)(void); + dll = dlopen(filename, RTLD_NOW); + if (!dll) { + fprintf(stderr, "Could not load module '%s' - %s\n", + filename, dlerror()); + return; + } + + init_func = dlsym(dll, "ffserver_module_init"); + if (!init_func) { + fprintf(stderr, + "%s: init function 'ffserver_module_init()' not found\n", + filename); + dlclose(dll); + } + + init_func(); +} + int parse_ffconfig(const char *filename) { FILE *f; @@ -2104,10 +3294,22 @@ int parse_ffconfig(const char *filename) if (!strcasecmp(cmd, "Port")) { get_arg(arg, sizeof(arg), &p); - my_addr.sin_port = htons (atoi(arg)); + my_http_addr.sin_port = htons (atoi(arg)); } else if (!strcasecmp(cmd, "BindAddress")) { get_arg(arg, sizeof(arg), &p); - if (!inet_aton(arg, &my_addr.sin_addr)) { + if (!inet_aton(arg, &my_http_addr.sin_addr)) { + fprintf(stderr, "%s:%d: Invalid IP address: %s\n", + filename, line_num, arg); + errors++; + } + } else if (!strcasecmp(cmd, "NoDaemon")) { + ffserver_daemon = 0; + } else if (!strcasecmp(cmd, "RTSPPort")) { + get_arg(arg, sizeof(arg), &p); + my_rtsp_addr.sin_port = htons (atoi(arg)); + } else if (!strcasecmp(cmd, "RTSPBindAddress")) { + get_arg(arg, sizeof(arg), &p); + if (!inet_aton(arg, &my_rtsp_addr.sin_addr)) { fprintf(stderr, "%s:%d: Invalid IP address: %s\n", filename, line_num, arg); errors++; @@ -2185,7 +3387,7 @@ int parse_ffconfig(const char *filename) feed->child_argv[i] = av_malloc(30 + strlen(feed->filename)); snprintf(feed->child_argv[i], 256, "http://127.0.0.1:%d/%s", - ntohs(my_addr.sin_port), feed->filename); + ntohs(my_http_addr.sin_port), feed->filename); } } else if (!strcasecmp(cmd, "File")) { if (feed) { @@ -2428,6 +3630,16 @@ int parse_ffconfig(const char *filename) video_id = CODEC_ID_NONE; } else if (!strcasecmp(cmd, "NoAudio")) { audio_id = CODEC_ID_NONE; + } else if (!strcasecmp(cmd, "RTSPOption")) { + get_arg(arg, sizeof(arg), &p); + if (stream) { + av_freep(&stream->rtsp_option); + /* XXX: av_strdup ? */ + stream->rtsp_option = av_malloc(strlen(arg) + 1); + if (stream->rtsp_option) { + strcpy(stream->rtsp_option, arg); + } + } } else if (!strcasecmp(cmd, "")) { if (!stream) { fprintf(stderr, "%s:%d: No corresponding for \n", @@ -2481,6 +3693,9 @@ int parse_ffconfig(const char *filename) errors++; } redirect = NULL; + } else if (!strcasecmp(cmd, "LoadModule")) { + get_arg(arg, sizeof(arg), &p); + load_module(arg); } else { fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n", filename, line_num, cmd); @@ -2496,12 +3711,6 @@ int parse_ffconfig(const char *filename) } -void *http_server_thread(void *arg) -{ - http_server(my_addr); - return NULL; -} - #if 0 static void write_packet(FFCodec *ffenc, UINT8 *buf, int size) @@ -2590,9 +3799,10 @@ int main(int argc, char **argv) config_filename = "/etc/ffserver.conf"; my_program_name = argv[0]; - + ffserver_daemon = 1; + for(;;) { - c = getopt_long_only(argc, argv, "ndLh?f:", NULL, NULL); + c = getopt(argc, argv, "ndLh?f:"); if (c == -1) break; switch(c) { @@ -2608,6 +3818,7 @@ int main(int argc, char **argv) break; case 'd': ffserver_debug = 1; + ffserver_daemon = 0; break; case 'f': config_filename = optarg; @@ -2619,10 +3830,16 @@ int main(int argc, char **argv) putenv("http_proxy"); /* Kill the http_proxy */ - /* address on which the server will handle connections */ - my_addr.sin_family = AF_INET; - my_addr.sin_port = htons (8080); - my_addr.sin_addr.s_addr = htonl (INADDR_ANY); + /* address on which the server will handle HTTP connections */ + my_http_addr.sin_family = AF_INET; + my_http_addr.sin_port = htons (8080); + my_http_addr.sin_addr.s_addr = htonl (INADDR_ANY); + + /* address on which the server will handle RTSP connections */ + my_rtsp_addr.sin_family = AF_INET; + my_rtsp_addr.sin_port = htons (5454); + my_rtsp_addr.sin_addr.s_addr = htonl (INADDR_ANY); + nb_max_connections = 5; nb_max_bandwidth = 1000; first_stream = NULL; @@ -2638,8 +3855,34 @@ int main(int argc, char **argv) exit(1); } + build_file_streams(); + build_feed_streams(); + /* put the process in background and detach it from its TTY */ + if (ffserver_daemon) { + int pid; + + pid = fork(); + if (pid < 0) { + perror("fork"); + exit(1); + } else if (pid > 0) { + /* parent : exit */ + exit(0); + } else { + /* child */ + setsid(); + chdir("/"); + close(0); + close(1); + close(2); + open("/dev/null", O_RDWR); + dup(0); + dup(0); + } + } + /* signal init */ signal(SIGPIPE, SIG_IGN); @@ -2651,8 +3894,8 @@ int main(int argc, char **argv) logfile = fopen(logfilename, "w"); } - if (http_server(my_addr) < 0) { - fprintf(stderr, "Could not start http server\n"); + if (http_server() < 0) { + fprintf(stderr, "Could not start server\n"); exit(1); } -- cgit v1.2.3