merge

Originally committed as revision 6 to svn://svn.ffmpeg.org/ffmpeg/trunk

1 files changed, 1577 insertions, 0 deletions

diff --git a/ffserver.c b/ffserver.c
new file mode 100644
index 0000000000..cfabe30823
--- /dev/null
+++ b/ffserver.c
@@ -0,0 +1,1577 @@
+/*
+ * Multiple format streaming server
+ * Copyright (c) 2000,2001 Gerard Lantau.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <stdarg.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <netinet/in.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/poll.h>
+#include <errno.h>
+#include <sys/time.h>
+#include <time.h>
+#include <getopt.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <arpa/inet.h>
+#include <netdb.h>
+#include <ctype.h>
+#include <signal.h>
+
+#include "avformat.h"
+
+/* maximum number of simultaneous HTTP connections */
+#define HTTP_MAX_CONNECTIONS 2000
+
+enum HTTPState {
+    HTTPSTATE_WAIT_REQUEST,
+    HTTPSTATE_SEND_HEADER,
+    HTTPSTATE_SEND_DATA_HEADER,
+    HTTPSTATE_SEND_DATA,
+    HTTPSTATE_SEND_DATA_TRAILER,
+    HTTPSTATE_RECEIVE_DATA,
+    HTTPSTATE_WAIT_FEED,
+};
+
+const char *http_state[] = {
+    "WAIT_REQUEST",
+    "SEND_HEADER",
+    "SEND_DATA_HEADER",
+    "SEND_DATA",
+    "SEND_DATA_TRAILER",
+    "RECEIVE_DATA",
+    "WAIT_FEED",
+};
+
+#define IOBUFFER_MAX_SIZE 16384
+
+/* coef for exponential mean for bitrate estimation in statistics */
+#define AVG_COEF 0.9
+
+/* timeouts are in ms */
+#define REQUEST_TIMEOUT (15 * 1000)
+#define SYNC_TIMEOUT (10 * 1000)
+
+/* context associated with one connection */
+typedef struct HTTPContext {
+    enum HTTPState state;
+    int fd; /* socket file descriptor */
+    struct sockaddr_in from_addr; /* origin */
+    struct pollfd *poll_entry; /* used when polling */
+    long timeout;
+    UINT8 buffer[IOBUFFER_MAX_SIZE];
+    UINT8 *buffer_ptr, *buffer_end;
+    int http_error;
+    struct HTTPContext *next;
+    int got_key_frame[MAX_STREAMS]; /* for each type */
+    INT64 data_count;
+    /* feed input */
+    int feed_fd;
+    /* input format handling */
+    AVFormatContext *fmt_in;
+    /* output format handling */
+    struct FFStream *stream;
+    AVFormatContext fmt_ctx;
+    int last_packet_sent; /* true if last data packet was sent */
+} HTTPContext;
+
+/* each generated stream is described here */
+enum StreamType {
+    STREAM_TYPE_LIVE,
+    STREAM_TYPE_STATUS,
+};
+
+/* description of each stream of the ffserver.conf file */
+typedef struct FFStream {
+    enum StreamType stream_type;
+    char filename[1024];     /* stream filename */
+    struct FFStream *feed;
+    AVFormat *fmt;
+    int nb_streams;
+    AVStream *streams[MAX_STREAMS];
+    int feed_streams[MAX_STREAMS]; /* index of streams in the feed */
+    char feed_filename[1024]; /* file name of the feed storage, or
+                                 input file name for a stream */
+    struct FFStream *next;
+    /* feed specific */
+    int feed_opened;     /* true if someone if writing to feed */
+    int is_feed;         /* true if it is a feed */
+    INT64 feed_max_size;      /* maximum storage size */
+    INT64 feed_write_index;   /* current write position in feed (it wraps round) */
+    INT64 feed_size;          /* current size of feed */
+    struct FFStream *next_feed;
+} FFStream;
+
+typedef struct FeedData {
+    long long data_count;
+    float avg_frame_size;   /* frame size averraged over last frames with exponential mean */
+} FeedData;
+
+struct sockaddr_in my_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, long cur_time);
+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);
+
+int nb_max_connections;
+int nb_connections;
+
+static long gettime_ms(void)
+{
+    struct timeval tv;
+
+    gettimeofday(&tv,NULL);
+    return (long long)tv.tv_sec * 1000 + (tv.tv_usec / 1000);
+}
+
+static FILE *logfile = NULL;
+
+static void http_log(char *fmt, ...)
+{
+    va_list ap;
+    va_start(ap, fmt);
+    
+    if (logfile)
+        vfprintf(logfile, fmt, ap);
+    va_end(ap);
+}
+
+/* main loop of the http server */
+static int http_server(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;
+    long cur_time;
+
+    server_fd = socket(AF_INET,SOCK_STREAM,0);
+    if (server_fd < 0) {
+        perror ("socket");
+        return -1;
+    }
+        
+    tmp = 1;
+    setsockopt(server_fd, SOL_SOCKET, SO_REUSEADDR, &tmp, sizeof(tmp));
+
+    if (bind (server_fd, (struct sockaddr *) &my_addr, sizeof (my_addr)) < 0) {
+        perror ("bind");
+        close(server_fd);
+        return -1;
+    }
+  
+    if (listen (server_fd, 5) < 0) {
+        perror ("listen");
+        close(server_fd);
+        return -1;
+    }
+
+    http_log("ffserver started.\n");
+
+    fcntl(server_fd, F_SETFL, O_NONBLOCK);
+    first_http_ctx = NULL;
+    nb_connections = 0;
+    first_http_ctx = NULL;
+    for(;;) {
+        poll_entry = poll_table;
+        poll_entry->fd = server_fd;
+        poll_entry->events = POLLIN;
+        poll_entry++;
+
+        /* wait for events on each HTTP handle */
+        c = first_http_ctx;
+        while (c != NULL) {
+            int fd;
+            fd = c->fd;
+            switch(c->state) {
+            case HTTPSTATE_WAIT_REQUEST:
+                c->poll_entry = poll_entry;
+                poll_entry->fd = fd;
+                poll_entry->events = POLLIN;
+                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++;
+                break;
+            case HTTPSTATE_RECEIVE_DATA:
+                c->poll_entry = poll_entry;
+                poll_entry->fd = fd;
+                poll_entry->events = POLLIN;
+                poll_entry++;
+                break;
+            case HTTPSTATE_WAIT_FEED:
+                /* need to catch errors */
+                c->poll_entry = poll_entry;
+                poll_entry->fd = fd;
+                poll_entry->events = 0;
+                poll_entry++;
+                break;
+            default:
+                c->poll_entry = NULL;
+                break;
+            }
+            c = c->next;
+        }
+
+        /* 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);
+        } while (ret == -1);
+        
+        cur_time = gettime_ms();
+
+        /* now handle the events */
+
+        cp = &first_http_ctx;
+        while ((*cp) != NULL) {
+            c = *cp;
+            if (handle_http (c, cur_time) < 0) {
+                /* close and free the connection */
+                close(c->fd);
+                if (c->fmt_in)
+                    av_close_input_file(c->fmt_in);
+                *cp = c->next;
+                free(c);
+                nb_connections--;
+            } else {
+                cp = &c->next;
+            }
+        }
+
+        /* new connection request ? */
+        poll_entry = poll_table;
+        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) {
+                    close(fd);
+                } else {
+                    /* add a new connection */
+                    c = av_mallocz(sizeof(HTTPContext));
+                    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_ptr = c->buffer;
+                    c->buffer_end = c->buffer + IOBUFFER_MAX_SIZE;
+                    c->timeout = cur_time + REQUEST_TIMEOUT;
+                    nb_connections++;
+                }
+            }
+        }
+        poll_entry++;
+    }
+}
+
+static int handle_http(HTTPContext *c, long cur_time)
+{
+    int len;
+    
+    switch(c->state) {
+    case HTTPSTATE_WAIT_REQUEST:
+        /* timeout ? */
+        if ((c->timeout - cur_time) < 0)
+            return -1;
+        if (c->poll_entry->revents & (POLLERR | POLLHUP))
+            return -1;
+
+        /* no need to read if no events */
+        if (!(c->poll_entry->revents & POLLIN))
+            return 0;
+        /* read the data */
+        len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
+        if (len < 0) {
+            if (errno != EAGAIN && errno != EINTR)
+                return -1;
+        } else if (len == 0) {
+            return -1;
+        } else {
+            /* search for end of request. XXX: not fully correct since garbage could come after the end */
+            UINT8 *ptr;
+            c->buffer_ptr += len;
+            ptr = c->buffer_ptr;
+            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)
+                    return -1;
+            } else if (ptr >= c->buffer_end) {
+                /* request too long: cannot do anything */
+                return -1;
+            }
+        }
+        break;
+
+    case HTTPSTATE_SEND_HEADER:
+        if (c->poll_entry->revents & (POLLERR | POLLHUP))
+            return -1;
+
+        /* no need to read 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 */
+                return -1;
+            }
+        } else {
+            c->buffer_ptr += len;
+            if (c->buffer_ptr >= c->buffer_end) {
+                /* if error, exit */
+                if (c->http_error)
+                    return -1;
+                /* all the buffer was send : synchronize to the incoming stream */
+                c->state = HTTPSTATE_SEND_DATA_HEADER;
+                c->buffer_ptr = c->buffer_end = c->buffer;
+            }
+        }
+        break;
+
+    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;
+        if (http_send_data(c) < 0)
+            return -1;
+        break;
+    case HTTPSTATE_RECEIVE_DATA:
+        /* no need to read if no events */
+        if (c->poll_entry->revents & (POLLERR | POLLHUP))
+            return -1;
+        if (!(c->poll_entry->revents & POLLIN))
+            return 0;
+        if (http_receive_data(c) < 0)
+            return -1;
+        break;
+    case HTTPSTATE_WAIT_FEED:
+        /* no need to read if no events */
+        if (c->poll_entry->revents & (POLLERR | POLLHUP))
+            return -1;
+
+        /* nothing to do, we'll be waken up by incoming feed packets */
+        break;
+    default:
+        return -1;
+    }
+    return 0;
+}
+
+/* parse http request and prepare header */
+static int http_parse_request(HTTPContext *c)
+{
+    char *p;
+    int post;
+    char cmd[32];
+    char info[1024], *filename;
+    char url[1024], *q;
+    char protocol[32];
+    char msg[1024];
+    const char *mime_type;
+    FFStream *stream;
+
+    p = c->buffer;
+    q = cmd;
+    while (!isspace(*p) && *p != '\0') {
+        if ((q - cmd) < sizeof(cmd) - 1)
+            *q++ = *p;
+        p++;
+    }
+    *q = '\0';
+    if (!strcmp(cmd, "GET"))
+        post = 0;
+    else if (!strcmp(cmd, "POST"))
+        post = 1;
+    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';
+
+    while (isspace(*p)) p++;
+    q = protocol;
+    while (!isspace(*p) && *p != '\0') {
+        if ((q - protocol) < sizeof(protocol) - 1)
+            *q++ = *p;
+        p++;
+    }
+    *q = '\0';
+    if (strcmp(protocol, "HTTP/1.0") && strcmp(protocol, "HTTP/1.1"))
+        return -1;
+    
+    /* find the filename and the optional info string in the request */
+    p = url;
+    if (*p == '/')
+        p++;
+    filename = p;
+    p = strchr(p, '?');
+    if (p) {
+        strcpy(info, p);
+        *p = '\0';
+    } else {
+        info[0] = '\0';
+    }
+
+    stream = first_stream;
+    while (stream != NULL) {
+        if (!strcmp(stream->filename, filename))
+            break;
+        stream = stream->next;
+    }
+    if (stream == NULL) {
+        sprintf(msg, "File '%s' not found", url);
+        goto send_error;
+    }
+    c->stream = stream;
+    
+    /* should do it after so that the size can be computed */
+    {
+        char buf1[32], buf2[32], *p;
+        time_t ti;
+        /* XXX: reentrant function ? */
+        p = inet_ntoa(c->from_addr.sin_addr);
+        strcpy(buf1, p);
+        ti = time(NULL);
+        p = ctime(&ti);
+        strcpy(buf2, p);
+        p = buf2 + strlen(p) - 1;
+        if (*p == '\n')
+            *p = '\0';
+        http_log("%s - - [%s] \"%s %s %s\" %d %d\n", 
+                 buf1, buf2, cmd, url, protocol, 200, 1024);
+    }
+
+    /* XXX: add there authenticate and IP match */
+
+    if (post) {
+        /* if post, it means a feed is being sent */
+        if (!stream->is_feed) {
+            sprintf(msg, "POST command not handled");
+            goto send_error;
+        }
+        if (http_start_receive_data(c) < 0) {
+            sprintf(msg, "could not open feed");
+            goto send_error;
+        }
+        c->http_error = 0;
+        c->state = HTTPSTATE_RECEIVE_DATA;
+        return 0;
+    }
+
+    if (c->stream->stream_type == STREAM_TYPE_STATUS)
+        goto send_stats;
+
+    /* open input stream */
+    if (open_input_stream(c, info) < 0) {
+        sprintf(msg, "Input stream corresponding to '%s' not found", url);
+        goto send_error;
+    }
+
+    /* prepare http header */
+    q = c->buffer;
+    q += sprintf(q, "HTTP/1.0 200 OK\r\n");
+    mime_type = c->stream->fmt->mime_type;
+    if (!mime_type)
+        mime_type = "application/x-octet_stream";
+    q += sprintf(q, "Content-type: %s\r\n", mime_type);
+    q += sprintf(q, "Pragma: no-cache\r\n");
+
+    /* for asf, we need extra headers */
+    if (!strcmp(c->stream->fmt->name,"asf")) {
+        q += sprintf(q, "Pragma: features=broadcast\r\n");
+    }
+    q += sprintf(q, "\r\n");
+    
+    /* prepare output buffer */
+    c->http_error = 0;
+    c->buffer_ptr = c->buffer;
+    c->buffer_end = q;
+    c->state = HTTPSTATE_SEND_HEADER;
+    return 0;
+ send_error:
+    c->http_error = 404;
+    q = c->buffer;
+    q += sprintf(q, "HTTP/1.0 404 Not Found\r\n");
+    q += sprintf(q, "Content-type: %s\r\n", "text/html");
+    q += sprintf(q, "\r\n");
+    q += sprintf(q, "<HTML>\n");
+    q += sprintf(q, "<HEAD><TITLE>404 Not Found</TITLE></HEAD>\n");
+    q += sprintf(q, "<BODY>%s</BODY>\n", msg);
+    q += sprintf(q, "</HTML>\n");
+
+    /* prepare output buffer */
+    c->buffer_ptr = c->buffer;
+    c->buffer_end = q;
+    c->state = HTTPSTATE_SEND_HEADER;
+    return 0;
+ send_stats:
+    compute_stats(c);
+    c->http_error = 200; /* horrible : we use this value to avoid
+                            going to the send data state */
+    c->state = HTTPSTATE_SEND_HEADER;
+    return 0;
+}
+
+static void compute_stats(HTTPContext *c)
+{
+    HTTPContext *c1;
+    FFStream *stream;
+    char *q, *p;
+    time_t ti;
+    int i;
+
+    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");
+    
+    q += sprintf(q, "<HEAD><TITLE>FFServer Status</TITLE></HEAD>\n<BODY>");
+    q += sprintf(q, "<H1>FFServer Status</H1>\n");
+    /* format status */
+    q += sprintf(q, "<H1>Available Streams</H1>\n");
+    q += sprintf(q, "<TABLE>\n");
+    q += sprintf(q, "<TR><TD>Path<TD>Format<TD>Bit rate (kbits/s)<TD>Video<TD>Audio<TD>Feed\n");
+    stream = first_stream;
+    while (stream != NULL) {
+        q += sprintf(q, "<TR><TD><A HREF=\"/%s\">%s</A> ", 
+                     stream->filename, stream->filename);
+        switch(stream->stream_type) {
+        case STREAM_TYPE_LIVE:
+            {
+                int audio_bit_rate = 0;
+                int video_bit_rate = 0;
+
+                for(i=0;i<stream->nb_streams;i++) {
+                    AVStream *st = stream->streams[i];
+                    switch(st->codec.codec_type) {
+                    case CODEC_TYPE_AUDIO:
+                        audio_bit_rate += st->codec.bit_rate;
+                        break;
+                    case CODEC_TYPE_VIDEO:
+                        video_bit_rate += st->codec.bit_rate;
+                        break;
+                    }
+                }
+                q += sprintf(q, "<TD> %s <TD> %d <TD> %d <TD> %d", 
+                             stream->fmt->name,
+                             (audio_bit_rate + video_bit_rate) / 1000,
+                             video_bit_rate / 1000, audio_bit_rate / 1000);
+                if (stream->feed) {
+                    q += sprintf(q, "<TD>%s", stream->feed->filename);
+                } else {
+                    q += sprintf(q, "<TD>%s", stream->feed_filename);
+                }
+                q += sprintf(q, "\n");
+            }
+            break;
+        default:
+            q += sprintf(q, "<TD> - <TD> - <TD> - <TD> -\n");
+            break;
+        }
+        stream = stream->next;
+    }
+    q += sprintf(q, "</TABLE>\n");
+    
+#if 0
+    {
+        float avg;
+        AVCodecContext *enc;
+        char buf[1024];
+        
+        /* feed status */
+        stream = first_feed;
+        while (stream != NULL) {
+            q += sprintf(q, "<H1>Feed '%s'</H1>\n", stream->filename);
+            q += sprintf(q, "<TABLE>\n");
+            q += sprintf(q, "<TR><TD>Parameters<TD>Frame count<TD>Size<TD>Avg bitrate (kbits/s)\n");
+            for(i=0;i<stream->nb_streams;i++) {
+                AVStream *st = stream->streams[i];
+                FeedData *fdata = st->priv_data;
+                enc = &st->codec;
+            
+                avcodec_string(buf, sizeof(buf), enc);
+                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, "<TR><TD>%s <TD> %d <TD> %Ld <TD> %0.1f\n", 
+                             buf, enc->frame_number, fdata->data_count, avg / 1000.0);
+            }
+            q += sprintf(q, "</TABLE>\n");
+            stream = stream->next_feed;
+        }
+    }
+#endif
+
+    /* connection status */
+    q += sprintf(q, "<H1>Connection Status</H1>\n");
+
+    q += sprintf(q, "Number of connections: %d / %d<BR>\n",
+                 nb_connections, nb_max_connections);
+
+    q += sprintf(q, "<TABLE>\n");
+    q += sprintf(q, "<TR><TD>#<TD>File<TD>IP<TD>State<TD>Size\n");
+    c1 = first_http_ctx;
+    i = 0;
+    while (c1 != NULL) {
+        i++;
+        p = inet_ntoa(c1->from_addr.sin_addr);
+        q += sprintf(q, "<TR><TD><B>%d</B><TD>%s%s <TD> %s <TD> %s <TD> %Ld\n", 
+                     i, c1->stream->filename, 
+                     c1->state == HTTPSTATE_RECEIVE_DATA ? "(input)" : "",
+                     p, 
+                     http_state[c1->state],
+                     c1->data_count);
+        c1 = c1->next;
+    }
+    q += sprintf(q, "</TABLE>\n");
+    
+    /* date */
+    ti = time(NULL);
+    p = ctime(&ti);
+    q += sprintf(q, "<HR>Generated at %s", p);
+    q += sprintf(q, "</BODY>\n</HTML>\n");
+
+    c->buffer_ptr = c->buffer;
+    c->buffer_end = q;
+}
+
+
+static void http_write_packet(void *opaque, 
+                              unsigned char *buf, int size)
+{
+    HTTPContext *c = opaque;
+    if (size > IOBUFFER_MAX_SIZE)
+        abort();
+    memcpy(c->buffer, buf, size);
+    c->buffer_ptr = c->buffer;
+    c->buffer_end = c->buffer + size;
+}
+
+static int open_input_stream(HTTPContext *c, const char *info)
+{
+    char buf[128];
+    char input_filename[1024];
+    AVFormatContext *s;
+    int buf_size;
+    INT64 stream_pos;
+
+    /* find file name */
+    if (c->stream->feed) {
+        strcpy(input_filename, c->stream->feed->feed_filename);
+        buf_size = FFM_PACKET_SIZE;
+        /* compute position (absolute time) */
+        if (find_info_tag(buf, sizeof(buf), "date", info)) {
+            stream_pos = parse_date(buf, 0);
+        } else {
+            stream_pos = gettime();
+        }
+    } else {
+        strcpy(input_filename, c->stream->feed_filename);
+        buf_size = 0;
+        /* compute position (relative time) */
+        if (find_info_tag(buf, sizeof(buf), "date", info)) {
+            stream_pos = parse_date(buf, 1);
+        } else {
+            stream_pos = 0;
+        }
+    }
+    if (input_filename[0] == '\0')
+        return -1;
+
+    /* open stream */
+    s = av_open_input_file(input_filename, buf_size);
+    if (!s)
+        return -1;
+    c->fmt_in = s;
+
+    if (c->fmt_in->format->read_seek) {
+        c->fmt_in->format->read_seek(c->fmt_in, stream_pos);
+    }
+    
+    //    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;
+
+    switch(c->state) {
+    case HTTPSTATE_SEND_DATA_HEADER:
+        memset(&c->fmt_ctx, 0, sizeof(c->fmt_ctx));
+        if (c->stream->feed) {
+            /* open output stream by using specified codecs */
+            c->fmt_ctx.format = c->stream->fmt;
+            c->fmt_ctx.nb_streams = c->stream->nb_streams;
+            for(i=0;i<c->fmt_ctx.nb_streams;i++) {
+                AVStream *st;
+                st = av_mallocz(sizeof(AVStream));
+                c->fmt_ctx.streams[i] = st;
+                memcpy(st, c->stream->streams[i], sizeof(AVStream));
+                st->codec.frame_number = 0; /* XXX: should be done in
+                                               AVStream, not in codec */
+                c->got_key_frame[i] = 0;
+            }
+        } else {
+            /* open output stream by using codecs in specified file */
+            c->fmt_ctx.format = c->stream->fmt;
+            c->fmt_ctx.nb_streams = c->fmt_in->nb_streams;
+            for(i=0;i<c->fmt_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 */
+                c->got_key_frame[i] = 0;
+            }
+        }
+        init_put_byte(&c->fmt_ctx.pb, c->buffer, IOBUFFER_MAX_SIZE,
+                      1, c, NULL, http_write_packet, NULL);
+        c->fmt_ctx.pb.is_streamed = 1;
+        /* prepare header */
+        c->fmt_ctx.format->write_header(&c->fmt_ctx);
+        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;
+            for(i=0;i<c->fmt_ctx.nb_streams;i++) {
+                c->got_key_frame[i] = 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 = malloc(payload_size);
+        if (fifo_read(&http_fifo, payload, payload_size, &c->rptr) < 0) {
+            /* cannot read all the payload */
+            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;i<c->fmt_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[i] = 1;
+                    if (c->got_key_frame[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;
+        }
+        free(payload);
+#endif
+        {
+            AVPacket pkt;
+
+            /* read a packet from the input stream */
+            if (c->stream->feed) {
+                ffm_set_write_index(c->fmt_in, 
+                                    c->stream->feed->feed_write_index,
+                                    c->stream->feed->feed_size);
+            }
+            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 */
+                    for(i=0;i<c->stream->nb_streams;i++) {
+                        if (c->stream->feed_streams[i] == pkt.stream_index) {
+                            pkt.stream_index = i;
+                            goto send_it;
+                        }
+                    }
+                } else {
+                send_it:
+                    av_write_packet(&c->fmt_ctx, &pkt);
+                }
+                
+                av_free_packet(&pkt);
+            }
+        }
+        break;
+    default:
+    case HTTPSTATE_SEND_DATA_TRAILER:
+        /* last packet test ? */
+        if (c->last_packet_sent)
+            return -1;
+        /* prepare header */
+        c->fmt_ctx.format->write_trailer(&c->fmt_ctx);
+        c->last_packet_sent = 1;
+        break;
+    }
+    return 0;
+}
+
+/* should convert the format at the same time */
+static int http_send_data(HTTPContext *c)
+{
+    int len, ret;
+
+    while (c->buffer_ptr >= c->buffer_end) {
+        ret = http_prepare_data(c);
+        if (ret < 0)
+            return -1;
+        else if (ret == 0) {
+            break;
+        } else {
+            /* state change requested */
+            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 */
+            return -1;
+        }
+    } else {
+        c->buffer_ptr += len;
+        c->data_count += len;
+    }
+    return 0;
+}
+
+static int http_start_receive_data(HTTPContext *c)
+{
+    int fd;
+
+    if (c->stream->feed_opened)
+        return -1;
+
+    /* open feed */
+    fd = open(c->stream->feed_filename, O_RDWR);
+    if (fd < 0)
+        return -1;
+    c->feed_fd = fd;
+    
+    c->stream->feed_write_index = ffm_read_write_index(fd);
+    c->stream->feed_size = lseek(fd, 0, SEEK_END);
+    lseek(fd, 0, SEEK_SET);
+
+    /* init buffer input */
+    c->buffer_ptr = c->buffer;
+    c->buffer_end = c->buffer + FFM_PACKET_SIZE;
+    c->stream->feed_opened = 1;
+    return 0;
+}
+    
+static int http_receive_data(HTTPContext *c)
+{
+    int len;
+    HTTPContext *c1;
+
+    if (c->buffer_ptr >= c->buffer_end) {
+        /* a packet has been received : write it in the store, except
+           if header */
+        if (c->data_count > FFM_PACKET_SIZE) {
+            FFStream *feed = c->stream;
+            
+            //            printf("writing pos=0x%Lx size=0x%Lx\n", feed->feed_write_index, feed->feed_size);
+            /* XXX: use llseek or url_seek */
+            lseek(c->feed_fd, feed->feed_write_index, SEEK_SET);
+            write(c->feed_fd, c->buffer, FFM_PACKET_SIZE);
+            
+            feed->feed_write_index += FFM_PACKET_SIZE;
+            /* update file size */
+            if (feed->feed_write_index > c->stream->feed_size)
+                feed->feed_size = feed->feed_write_index;
+
+            /* handle wrap around if max file size reached */
+            if (feed->feed_write_index >= c->stream->feed_max_size)
+                feed->feed_write_index = FFM_PACKET_SIZE;
+
+            /* write index */
+            ffm_write_write_index(c->feed_fd, feed->feed_write_index);
+
+            /* wake up any waiting connections */
+            for(c1 = first_http_ctx; c1 != NULL; c1 = c1->next) {
+                if (c1->state == HTTPSTATE_WAIT_FEED && 
+                    c1->stream->feed == c->stream->feed) {
+                    c1->state = HTTPSTATE_SEND_DATA;
+                }
+            }
+        }
+        c->buffer_ptr = c->buffer;
+    }
+
+    len = read(c->fd, c->buffer_ptr, c->buffer_end - c->buffer_ptr);
+    if (len < 0) {
+        if (errno != EAGAIN && errno != EINTR) {
+            /* error : close connection */
+            goto fail;
+        }
+    } else if (len == 0) {
+        /* end of connection : close it */
+        goto fail;
+    } else {
+        c->buffer_ptr += len;
+        c->data_count += len;
+    }
+    return 0;
+ fail:
+    c->stream->feed_opened = 0;
+    close(c->feed_fd);
+    return -1;
+}
+
+/* return the stream number in the feed */
+int add_av_stream(FFStream *feed,
+                  AVStream *st)
+{
+    AVStream *fst;
+    AVCodecContext *av, *av1;
+    int i;
+
+    av = &st->codec;
+    for(i=0;i<feed->nb_streams;i++) {
+        st = feed->streams[i];
+        av1 = &st->codec;
+        if (av1->codec == av->codec &&
+            av1->bit_rate == av->bit_rate) {
+
+            switch(av->codec_type) {
+            case CODEC_TYPE_AUDIO:
+                if (av1->channels == av->channels &&
+                    av1->sample_rate == av->sample_rate)
+                    goto found;
+                break;
+            case CODEC_TYPE_VIDEO:
+                if (av1->width == av->width &&
+                    av1->height == av->height &&
+                    av1->frame_rate == av->frame_rate &&
+                    av1->gop_size == av->gop_size)
+                    goto found;
+                break;
+            }
+        }
+    }
+    
+    fst = av_mallocz(sizeof(AVStream));
+    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;
+}
+
+/* compute the needed AVStream for each feed */
+void build_feed_streams(void)
+{
+    FFStream *stream, *feed;
+    int i;
+
+    /* gather all streams */
+    for(stream = first_stream; stream != NULL; stream = stream->next) {
+        feed = stream->feed;
+        if (feed) {
+            if (!stream->is_feed) {
+                for(i=0;i<stream->nb_streams;i++) {
+                    stream->feed_streams[i] = add_av_stream(feed, stream->streams[i]);
+                }
+            } else {
+                for(i=0;i<stream->nb_streams;i++) {
+                    stream->feed_streams[i] = i;
+                }
+            }
+        }
+    }
+
+    /* create feed files if needed */
+    for(feed = first_feed; feed != NULL; feed = feed->next_feed) {
+        int fd;
+
+        if (!url_exist(feed->feed_filename)) {
+            AVFormatContext s1, *s = &s1;
+
+            /* only write the header of the ffm file */
+            if (url_fopen(&s->pb, feed->feed_filename, URL_WRONLY) < 0) {
+                fprintf(stderr, "Could not open output feed file '%s'\n",
+                        feed->feed_filename);
+                exit(1);
+            }
+            s->format = feed->fmt;
+            s->nb_streams = feed->nb_streams;
+            for(i=0;i<s->nb_streams;i++) {
+                AVStream *st;
+                st = feed->streams[i];
+                s->streams[i] = st;
+            }
+            s->format->write_header(s);
+
+            url_fclose(&s->pb);
+        }
+        /* get feed size and write index */
+        fd = open(feed->feed_filename, O_RDONLY);
+        if (fd < 0) {
+            fprintf(stderr, "Could not open output feed file '%s'\n",
+                    feed->feed_filename);
+            exit(1);
+        }
+
+        feed->feed_write_index = ffm_read_write_index(fd);
+        feed->feed_size = lseek(fd, 0, SEEK_END);
+        /* ensure that we do not wrap before the end of file */
+        if (feed->feed_max_size < feed->feed_size)
+            feed->feed_max_size = feed->feed_size;
+
+        close(fd);
+    }
+}
+
+static void get_arg(char *buf, int buf_size, const char **pp)
+{
+    const char *p;
+    char *q;
+    int quote;
+
+    p = *pp;
+    while (isspace(*p)) p++;
+    q = buf;
+    quote = 0;
+    if (*p == '\"' || *p == '\'')
+        quote = *p++;
+    for(;;) {
+        if (quote) {
+            if (*p == quote)
+                break;
+        } else {
+            if (isspace(*p))
+                break;
+        }
+        if (*p == '\0')
+            break;
+        if ((q - buf) < buf_size - 1)
+            *q++ = *p;
+        p++;
+    }
+    *q = '\0';
+    if (quote && *p == quote)
+        p++;
+    *pp = p;
+}
+
+/* add a codec and set the default parameters */
+void add_codec(FFStream *stream, AVCodecContext *av)
+{
+    AVStream *st;
+
+    /* compute default parameters */
+    switch(av->codec_type) {
+    case CODEC_TYPE_AUDIO:
+        if (av->bit_rate == 0)
+            av->bit_rate = 64000;
+        if (av->sample_rate == 0)
+            av->sample_rate = 22050;
+        if (av->channels == 0)
+            av->channels = 1;
+        break;
+    case CODEC_TYPE_VIDEO:
+        if (av->bit_rate == 0)
+            av->bit_rate = 64000;
+        if (av->frame_rate == 0)
+            av->frame_rate = 5 * FRAME_RATE_BASE;
+        if (av->width == 0 || av->height == 0) {
+            av->width = 160;
+            av->height = 128;
+        }
+        break;
+    }
+
+    st = av_mallocz(sizeof(AVStream));
+    if (!st)
+        return;
+    stream->streams[stream->nb_streams++] = st;
+    memcpy(&st->codec, av, sizeof(AVCodecContext));
+}
+
+int parse_ffconfig(const char *filename)
+{
+    FILE *f;
+    char line[1024];
+    char cmd[64];
+    char arg[1024];
+    const char *p;
+    int val, errors, line_num;
+    FFStream **last_stream, *stream;
+    FFStream **last_feed, *feed;
+    AVCodecContext audio_enc, video_enc;
+    int audio_id, video_id;
+
+    f = fopen(filename, "r");
+    if (!f) {
+        perror(filename);
+        return -1;
+    }
+    
+    errors = 0;
+    line_num = 0;
+    first_stream = NULL;
+    last_stream = &first_stream;
+    first_feed = NULL;
+    last_feed = &first_feed;
+    stream = NULL;
+    feed = NULL;
+    audio_id = CODEC_ID_NONE;
+    video_id = CODEC_ID_NONE;
+    for(;;) {
+        if (fgets(line, sizeof(line), f) == NULL)
+            break;
+        line_num++;
+        p = line;
+        while (isspace(*p)) 
+            p++;
+        if (*p == '\0' || *p == '#')
+            continue;
+
+        get_arg(cmd, sizeof(cmd), &p);
+        
+        if (!strcasecmp(cmd, "Port")) {
+            get_arg(arg, sizeof(arg), &p);
+            my_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)) {
+                fprintf(stderr, "%s:%d: Invalid IP address: %s\n", 
+                        filename, line_num, arg);
+                errors++;
+            }
+        } else if (!strcasecmp(cmd, "MaxClients")) {
+            get_arg(arg, sizeof(arg), &p);
+            val = atoi(arg);
+            if (val < 1 || val > HTTP_MAX_CONNECTIONS) {
+                fprintf(stderr, "%s:%d: Invalid MaxClients: %s\n", 
+                        filename, line_num, arg);
+                errors++;
+            } else {
+                nb_max_connections = val;
+            }
+        } else if (!strcasecmp(cmd, "CustomLog")) {
+            get_arg(logfilename, sizeof(logfilename), &p);
+        } else if (!strcasecmp(cmd, "<Feed")) {
+            /*********************************************/
+            /* Feed related options */
+            char *q;
+            if (stream || feed) {
+                fprintf(stderr, "%s:%d: Already in a tag\n",
+                        filename, line_num);
+            } else {
+                feed = av_mallocz(sizeof(FFStream));
+                /* add in stream list */
+                *last_stream = feed;
+                last_stream = &feed->next;
+                /* add in feed list */
+                *last_feed = feed;
+                last_feed = &feed->next_feed;
+                
+                get_arg(feed->filename, sizeof(feed->filename), &p);
+                q = strrchr(feed->filename, '>');
+                if (*q)
+                    *q = '\0';
+                feed->fmt = guess_format("ffm", NULL, NULL);
+                /* defaut feed file */
+                snprintf(feed->feed_filename, sizeof(feed->feed_filename),
+                         "/tmp/%s.ffm", feed->filename);
+                feed->feed_max_size = 5 * 1024 * 1024;
+                feed->is_feed = 1;
+                feed->feed = feed; /* self feeding :-) */
+            }
+        } else if (!strcasecmp(cmd, "File")) {
+            if (feed) {
+                get_arg(feed->feed_filename, sizeof(feed->feed_filename), &p);
+            } else if (stream) {
+                get_arg(stream->feed_filename, sizeof(stream->feed_filename), &p);
+            }
+        } else if (!strcasecmp(cmd, "FileMaxSize")) {
+            if (feed) {
+                const char *p1;
+                double fsize;
+
+                get_arg(arg, sizeof(arg), &p);
+                p1 = arg;
+                fsize = strtod(p1, (char **)&p1);
+                switch(toupper(*p1)) {
+                case 'K':
+                    fsize *= 1024;
+                    break;
+                case 'M':
+                    fsize *= 1024 * 1024;
+                    break;
+                case 'G':
+                    fsize *= 1024 * 1024 * 1024;
+                    break;
+                }
+                feed->feed_max_size = (INT64)fsize;
+            }
+        } else if (!strcasecmp(cmd, "</Feed>")) {
+            if (!feed) {
+                fprintf(stderr, "%s:%d: No corresponding <Feed> for </Feed>\n",
+                        filename, line_num);
+                errors++;
+            }
+            feed = NULL;
+        } else if (!strcasecmp(cmd, "<Stream")) {
+            /*********************************************/
+            /* Stream related options */
+            char *q;
+            if (stream || feed) {
+                fprintf(stderr, "%s:%d: Already in a tag\n",
+                        filename, line_num);
+            } else {
+                stream = av_mallocz(sizeof(FFStream));
+                *last_stream = stream;
+                last_stream = &stream->next;
+
+                get_arg(stream->filename, sizeof(stream->filename), &p);
+                q = strrchr(stream->filename, '>');
+                if (*q)
+                    *q = '\0';
+                stream->fmt = guess_format(NULL, stream->filename, NULL);
+                memset(&audio_enc, 0, sizeof(AVCodecContext));
+                memset(&video_enc, 0, sizeof(AVCodecContext));
+                audio_id = CODEC_ID_NONE;
+                video_id = CODEC_ID_NONE;
+                if (stream->fmt) {
+                    audio_id = stream->fmt->audio_codec;
+                    video_id = stream->fmt->video_codec;
+                }
+            }
+        } else if (!strcasecmp(cmd, "Feed")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                FFStream *sfeed;
+                
+                sfeed = first_feed;
+                while (sfeed != NULL) {
+                    if (!strcmp(sfeed->filename, arg))
+                        break;
+                    sfeed = sfeed->next_feed;
+                }
+                if (!sfeed) {
+                    fprintf(stderr, "%s:%d: feed '%s' not defined\n",
+                            filename, line_num, arg);
+                } else {
+                    stream->feed = sfeed;
+                }
+            }
+        } else if (!strcasecmp(cmd, "Format")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (!strcmp(arg, "status")) {
+                stream->stream_type = STREAM_TYPE_STATUS;
+                stream->fmt = NULL;
+            } else {
+                stream->stream_type = STREAM_TYPE_LIVE;
+                stream->fmt = guess_format(arg, NULL, NULL);
+                if (!stream->fmt) {
+                    fprintf(stderr, "%s:%d: Unknown Format: %s\n", 
+                            filename, line_num, arg);
+                    errors++;
+                }
+            }
+            if (stream->fmt) {
+                audio_id = stream->fmt->audio_codec;
+                video_id = stream->fmt->video_codec;
+            }
+        } else if (!strcasecmp(cmd, "AudioBitRate")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                audio_enc.bit_rate = atoi(arg) * 1000;
+            }
+        } else if (!strcasecmp(cmd, "AudioChannels")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                audio_enc.channels = atoi(arg);
+            }
+        } else if (!strcasecmp(cmd, "AudioSampleRate")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                audio_enc.sample_rate = atoi(arg);
+            }
+        } else if (!strcasecmp(cmd, "VideoBitRate")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                video_enc.bit_rate = atoi(arg) * 1000;
+            }
+        } else if (!strcasecmp(cmd, "VideoSize")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                parse_image_size(&video_enc.width, &video_enc.height, arg);
+                if ((video_enc.width % 16) != 0 ||
+                    (video_enc.height % 16) != 0) {
+                    fprintf(stderr, "%s:%d: Image size must be a multiple of 16\n",
+                            filename, line_num);
+                    errors++;
+                }
+            }
+        } else if (!strcasecmp(cmd, "VideoFrameRate")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                video_enc.frame_rate = (int)(strtod(arg, NULL) * FRAME_RATE_BASE);
+            }
+        } else if (!strcasecmp(cmd, "VideoGopSize")) {
+            get_arg(arg, sizeof(arg), &p);
+            if (stream) {
+                video_enc.gop_size = atoi(arg);
+            }
+        } else if (!strcasecmp(cmd, "VideoIntraOnly")) {
+            if (stream) {
+                video_enc.gop_size = 1;
+            }
+        } else if (!strcasecmp(cmd, "NoVideo")) {
+            video_id = CODEC_ID_NONE;
+        } else if (!strcasecmp(cmd, "NoAudio")) {
+            audio_id = CODEC_ID_NONE;
+        } else if (!strcasecmp(cmd, "</Stream>")) {
+            if (!stream) {
+                fprintf(stderr, "%s:%d: No corresponding <Stream> for </Stream>\n",
+                        filename, line_num);
+                errors++;
+            }
+            if (stream->feed && stream->fmt && strcmp(stream->fmt->name, "ffm") != 0) {
+                if (audio_id != CODEC_ID_NONE) {
+                    audio_enc.codec_type = CODEC_TYPE_AUDIO;
+                    audio_enc.codec_id = audio_id;
+                    add_codec(stream, &audio_enc);
+                }
+                if (video_id != CODEC_ID_NONE) {
+                    video_enc.codec_type = CODEC_TYPE_VIDEO;
+                    video_enc.codec_id = video_id;
+                    add_codec(stream, &video_enc);
+                }
+            }
+            stream = NULL;
+        } else {
+            fprintf(stderr, "%s:%d: Incorrect keyword: '%s'\n", 
+                    filename, line_num, cmd);
+            errors++;
+        }
+    }
+
+    fclose(f);
+    if (errors)
+        return -1;
+    else
+        return 0;
+}
+
+
+void *http_server_thread(void *arg)
+{
+    http_server(my_addr);
+    return NULL;
+}
+
+#if 0
+static void write_packet(FFCodec *ffenc,
+                         UINT8 *buf, int size)
+{
+    PacketHeader hdr;
+    AVCodecContext *enc = &ffenc->enc;
+    UINT8 *wptr;
+    mk_header(&hdr, enc, size);
+    wptr = http_fifo.wptr;
+    fifo_write(&http_fifo, (UINT8 *)&hdr, sizeof(hdr), &wptr);
+    fifo_write(&http_fifo, buf, size, &wptr);
+    /* atomic modification of wptr */
+    http_fifo.wptr = wptr;
+    ffenc->data_count += size;
+    ffenc->avg_frame_size = ffenc->avg_frame_size * AVG_COEF + size * (1.0 - AVG_COEF);
+}
+#endif
+
+void help(void)
+{
+    printf("ffserver version " FFMPEG_VERSION ", Copyright (c) 2000,2001 Gerard Lantau\n"
+           "usage: ffserver [-L] [-h] [-f configfile]\n"
+           "Hyper fast multi format Audio/Video streaming server\n"
+           "\n"
+           "-L            : print the LICENCE\n"
+           "-h            : this help\n"
+           "-f configfile : use configfile instead of /etc/ffserver.conf\n"
+           );
+}
+
+void licence(void)
+{
+    printf(
+    "ffserver version " FFMPEG_VERSION "\n"
+    "Copyright (c) 2000,2001 Gerard Lantau\n"
+    "This program is free software; you can redistribute it and/or modify\n"
+    "it under the terms of the GNU General Public License as published by\n"
+    "the Free Software Foundation; either version 2 of the License, or\n"
+    "(at your option) any later version.\n"
+    "\n"
+    "This program is distributed in the hope that it will be useful,\n"
+    "but WITHOUT ANY WARRANTY; without even the implied warranty of\n"
+    "MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n"
+    "GNU General Public License for more details.\n"
+    "\n"
+    "You should have received a copy of the GNU General Public License\n"
+    "along with this program; if not, write to the Free Software\n"
+    "Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.\n"
+    );
+}
+
+int main(int argc, char **argv)
+{
+    const char *config_filename;
+    int c;
+
+    register_all();
+
+    config_filename = "/etc/ffserver.conf";
+
+    for(;;) {
+        c = getopt_long_only(argc, argv, "Lh?f:", NULL, NULL);
+        if (c == -1)
+            break;
+        switch(c) {
+        case 'L':
+            licence();
+            exit(1);
+        case '?':
+        case 'h':
+            help();
+            exit(1);
+        case 'f':
+            config_filename = optarg;
+            break;
+        default:
+            exit(2);
+        }
+    }
+
+    /* 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);
+    nb_max_connections = 5;
+    first_stream = NULL;
+    logfilename[0] = '\0';
+
+    if (parse_ffconfig(config_filename) < 0) {
+        fprintf(stderr, "Incorrect config file - exiting.\n");
+        exit(1);
+    }
+
+    build_feed_streams();
+
+    /* signal init */
+    signal(SIGPIPE, SIG_IGN);
+
+    /* open log file if needed */
+    if (logfilename[0] != '\0') {
+        if (!strcmp(logfilename, "-"))
+            logfile = stdout;
+        else
+            logfile = fopen(logfilename, "w");
+    }
+
+    if (http_server(my_addr) < 0) {
+        fprintf(stderr, "Could start http server\n");
+        exit(1);
+    }
+
+    return 0;
+}