[FFserver-user] about function ff_rtsp_parse_line

[Mr. Xiao]

hi, everybody:
 
the function ff_rtsp_parse_line imported from avformat.dll can't parse anything while the line is correct. for example: when line is "Session: xxxxxxxxxxxxxxxxxxx", then call ff_rtsp_parse_line(header, line, NULL, NULL), after that, the result is header->session_id == "".
 
int CAVServerImpl::rtsp_parse_request(HTTPContext *c)
{
 const char *p, *p1, *p2;
 char cmd[32];
 char url[1024];
 char protocol[32];
 char line[1024];
 int len;
 RTSPMessageHeader header1 = { 0 }, *header = &header1;
 c->buffer_ptr[0] = '\0';
 p = (const char *)c->buffer;
 get_word(cmd, sizeof(cmd), &p);
 get_word(url, sizeof(url), &p);
 get_word(protocol, sizeof(protocol), &p);
 av_strlcpy(c->method, cmd, sizeof(c->method));
 av_strlcpy(c->url, url, sizeof(c->url));
 av_strlcpy(c->protocol, protocol, sizeof(c->protocol));
 if (avio_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(*header));
 /* skip to next line */
 while (*p != '\n' && *p != '\0')
  p++;
 if (*p == '\n')
  p++;
 while (*p != '\0') {
  p1 = (const char *)memchr(p, '\n', (char *)c->buffer_ptr - p);
  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';
  ff_rtsp_parse_line(header, line, NULL, NULL);     // XXXXXXXXXXXXXXXXXXXXXXXX THIS IS NOT CORRECT !!!
  p = p1 + 1;
 }
 /* handle sequence number */
 c->seq = header->seq;
 if (!strcmp(cmd, "DESCRIBE"))
  rtsp_cmd_describe(c, url);
 else if (!strcmp(cmd, "OPTIONS"))
  rtsp_cmd_options(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 = avio_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;
}
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