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http.c
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1 /*
2  * HTTP protocol for ffmpeg client
3  * Copyright (c) 2000, 2001 Fabrice Bellard
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include "config.h"
23 
24 #if CONFIG_ZLIB
25 #include <zlib.h>
26 #endif /* CONFIG_ZLIB */
27 
28 #include "libavutil/avassert.h"
29 #include "libavutil/avstring.h"
30 #include "libavutil/opt.h"
31 #include "libavutil/time.h"
32 #include "libavutil/parseutils.h"
33 
34 #include "avformat.h"
35 #include "http.h"
36 #include "httpauth.h"
37 #include "internal.h"
38 #include "network.h"
39 #include "os_support.h"
40 #include "url.h"
41 
42 /* XXX: POST protocol is not completely implemented because ffmpeg uses
43  * only a subset of it. */
44 
45 /* The IO buffer size is unrelated to the max URL size in itself, but needs
46  * to be large enough to fit the full request headers (including long
47  * path names). */
48 #define BUFFER_SIZE MAX_URL_SIZE
49 #define MAX_REDIRECTS 8
50 #define HTTP_SINGLE 1
51 #define HTTP_MUTLI 2
52 #define MAX_EXPIRY 19
53 #define WHITESPACES " \n\t\r"
54 typedef enum {
60 
61 typedef struct HTTPContext {
62  const AVClass *class;
64  unsigned char buffer[BUFFER_SIZE], *buf_ptr, *buf_end;
66  int http_code;
67  /* Used if "Transfer-Encoding: chunked" otherwise -1. */
68  uint64_t chunksize;
69  int chunkend;
70  uint64_t off, end_off, filesize;
71  char *location;
74  char *http_proxy;
75  char *headers;
76  char *mime_type;
77  char *user_agent;
78 #if FF_API_HTTP_USER_AGENT
79  char *user_agent_deprecated;
80 #endif
81  char *content_type;
82  /* Set if the server correctly handles Connection: close and will close
83  * the connection after feeding us the content. */
84  int willclose;
85  int seekable; /**< Control seekability, 0 = disable, 1 = enable, -1 = probe. */
87  /* A flag which indicates if the end of chunked encoding has been sent. */
89  /* A flag which indicates we have finished to read POST reply. */
91  /* A flag which indicates if we use persistent connections. */
95  int is_akamai;
97  char *cookies; ///< holds newline (\n) delimited Set-Cookie header field values (without the "Set-Cookie: " field name)
98  /* A dictionary containing cookies keyed by cookie name */
100  int icy;
101  /* how much data was read since the last ICY metadata packet */
102  uint64_t icy_data_read;
103  /* after how many bytes of read data a new metadata packet will be found */
104  uint64_t icy_metaint;
108 #if CONFIG_ZLIB
109  int compressed;
110  z_stream inflate_stream;
111  uint8_t *inflate_buffer;
112 #endif /* CONFIG_ZLIB */
115  char *method;
121  int listen;
122  char *resource;
127 } HTTPContext;
128 
129 #define OFFSET(x) offsetof(HTTPContext, x)
130 #define D AV_OPT_FLAG_DECODING_PARAM
131 #define E AV_OPT_FLAG_ENCODING_PARAM
132 #define DEFAULT_USER_AGENT "Lavf/" AV_STRINGIFY(LIBAVFORMAT_VERSION)
133 
134 static const AVOption options[] = {
135  { "seekable", "control seekability of connection", OFFSET(seekable), AV_OPT_TYPE_BOOL, { .i64 = -1 }, -1, 1, D },
136  { "chunked_post", "use chunked transfer-encoding for posts", OFFSET(chunked_post), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, E },
137  { "http_proxy", "set HTTP proxy to tunnel through", OFFSET(http_proxy), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
138  { "headers", "set custom HTTP headers, can override built in default headers", OFFSET(headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
139  { "content_type", "set a specific content type for the POST messages", OFFSET(content_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
140  { "user_agent", "override User-Agent header", OFFSET(user_agent), AV_OPT_TYPE_STRING, { .str = DEFAULT_USER_AGENT }, 0, 0, D },
141 #if FF_API_HTTP_USER_AGENT
142  { "user-agent", "override User-Agent header", OFFSET(user_agent_deprecated), AV_OPT_TYPE_STRING, { .str = DEFAULT_USER_AGENT }, 0, 0, D },
143 #endif
144  { "multiple_requests", "use persistent connections", OFFSET(multiple_requests), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D | E },
145  { "post_data", "set custom HTTP post data", OFFSET(post_data), AV_OPT_TYPE_BINARY, .flags = D | E },
146  { "mime_type", "export the MIME type", OFFSET(mime_type), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT | AV_OPT_FLAG_READONLY },
147  { "cookies", "set cookies to be sent in applicable future requests, use newline delimited Set-Cookie HTTP field value syntax", OFFSET(cookies), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D },
148  { "icy", "request ICY metadata", OFFSET(icy), AV_OPT_TYPE_BOOL, { .i64 = 1 }, 0, 1, D },
149  { "icy_metadata_headers", "return ICY metadata headers", OFFSET(icy_metadata_headers), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
150  { "icy_metadata_packet", "return current ICY metadata packet", OFFSET(icy_metadata_packet), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, AV_OPT_FLAG_EXPORT },
151  { "metadata", "metadata read from the bitstream", OFFSET(metadata), AV_OPT_TYPE_DICT, {0}, 0, 0, AV_OPT_FLAG_EXPORT },
152  { "auth_type", "HTTP authentication type", OFFSET(auth_state.auth_type), AV_OPT_TYPE_INT, { .i64 = HTTP_AUTH_NONE }, HTTP_AUTH_NONE, HTTP_AUTH_BASIC, D | E, "auth_type"},
153  { "none", "No auth method set, autodetect", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_NONE }, 0, 0, D | E, "auth_type"},
154  { "basic", "HTTP basic authentication", 0, AV_OPT_TYPE_CONST, { .i64 = HTTP_AUTH_BASIC }, 0, 0, D | E, "auth_type"},
155  { "send_expect_100", "Force sending an Expect: 100-continue header for POST", OFFSET(send_expect_100), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, E },
156  { "location", "The actual location of the data received", OFFSET(location), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
157  { "offset", "initial byte offset", OFFSET(off), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, D },
158  { "end_offset", "try to limit the request to bytes preceding this offset", OFFSET(end_off), AV_OPT_TYPE_INT64, { .i64 = 0 }, 0, INT64_MAX, D },
159  { "method", "Override the HTTP method or set the expected HTTP method from a client", OFFSET(method), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, D | E },
160  { "reconnect", "auto reconnect after disconnect before EOF", OFFSET(reconnect), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
161  { "reconnect_at_eof", "auto reconnect at EOF", OFFSET(reconnect_at_eof), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
162  { "reconnect_streamed", "auto reconnect streamed / non seekable streams", OFFSET(reconnect_streamed), AV_OPT_TYPE_BOOL, { .i64 = 0 }, 0, 1, D },
163  { "reconnect_delay_max", "max reconnect delay in seconds after which to give up", OFFSET(reconnect_delay_max), AV_OPT_TYPE_INT, { .i64 = 120 }, 0, UINT_MAX/1000/1000, D },
164  { "listen", "listen on HTTP", OFFSET(listen), AV_OPT_TYPE_INT, { .i64 = 0 }, 0, 2, D | E },
165  { "resource", "The resource requested by a client", OFFSET(resource), AV_OPT_TYPE_STRING, { .str = NULL }, 0, 0, E },
166  { "reply_code", "The http status code to return to a client", OFFSET(reply_code), AV_OPT_TYPE_INT, { .i64 = 200}, INT_MIN, 599, E},
167  { NULL }
168 };
169 
170 static int http_connect(URLContext *h, const char *path, const char *local_path,
171  const char *hoststr, const char *auth,
172  const char *proxyauth, int *new_location);
173 static int http_read_header(URLContext *h, int *new_location);
174 static int http_shutdown(URLContext *h, int flags);
175 
177 {
178  memcpy(&((HTTPContext *)dest->priv_data)->auth_state,
179  &((HTTPContext *)src->priv_data)->auth_state,
180  sizeof(HTTPAuthState));
181  memcpy(&((HTTPContext *)dest->priv_data)->proxy_auth_state,
182  &((HTTPContext *)src->priv_data)->proxy_auth_state,
183  sizeof(HTTPAuthState));
184 }
185 
187 {
188  const char *path, *proxy_path, *lower_proto = "tcp", *local_path;
189  char hostname[1024], hoststr[1024], proto[10];
190  char auth[1024], proxyauth[1024] = "";
191  char path1[MAX_URL_SIZE];
192  char buf[1024], urlbuf[MAX_URL_SIZE];
193  int port, use_proxy, err, location_changed = 0;
194  HTTPContext *s = h->priv_data;
195 
196  av_url_split(proto, sizeof(proto), auth, sizeof(auth),
197  hostname, sizeof(hostname), &port,
198  path1, sizeof(path1), s->location);
199  ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
200 
201  proxy_path = s->http_proxy ? s->http_proxy : getenv("http_proxy");
202  use_proxy = !ff_http_match_no_proxy(getenv("no_proxy"), hostname) &&
203  proxy_path && av_strstart(proxy_path, "http://", NULL);
204 
205  if (!strcmp(proto, "https")) {
206  lower_proto = "tls";
207  use_proxy = 0;
208  if (port < 0)
209  port = 443;
210  }
211  if (port < 0)
212  port = 80;
213 
214  if (path1[0] == '\0')
215  path = "/";
216  else
217  path = path1;
218  local_path = path;
219  if (use_proxy) {
220  /* Reassemble the request URL without auth string - we don't
221  * want to leak the auth to the proxy. */
222  ff_url_join(urlbuf, sizeof(urlbuf), proto, NULL, hostname, port, "%s",
223  path1);
224  path = urlbuf;
225  av_url_split(NULL, 0, proxyauth, sizeof(proxyauth),
226  hostname, sizeof(hostname), &port, NULL, 0, proxy_path);
227  }
228 
229  ff_url_join(buf, sizeof(buf), lower_proto, NULL, hostname, port, NULL);
230 
231  if (!s->hd) {
233  &h->interrupt_callback, options,
235  if (err < 0)
236  return err;
237  }
238 
239  err = http_connect(h, path, local_path, hoststr,
240  auth, proxyauth, &location_changed);
241  if (err < 0)
242  return err;
243 
244  return location_changed;
245 }
246 
247 /* return non zero if error */
248 static int http_open_cnx(URLContext *h, AVDictionary **options)
249 {
250  HTTPAuthType cur_auth_type, cur_proxy_auth_type;
251  HTTPContext *s = h->priv_data;
252  int location_changed, attempts = 0, redirects = 0;
253 redo:
254  av_dict_copy(options, s->chained_options, 0);
255 
256  cur_auth_type = s->auth_state.auth_type;
257  cur_proxy_auth_type = s->auth_state.auth_type;
258 
259  location_changed = http_open_cnx_internal(h, options);
260  if (location_changed < 0)
261  goto fail;
262 
263  attempts++;
264  if (s->http_code == 401) {
265  if ((cur_auth_type == HTTP_AUTH_NONE || s->auth_state.stale) &&
266  s->auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {
267  ffurl_closep(&s->hd);
268  goto redo;
269  } else
270  goto fail;
271  }
272  if (s->http_code == 407) {
273  if ((cur_proxy_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
274  s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 4) {
275  ffurl_closep(&s->hd);
276  goto redo;
277  } else
278  goto fail;
279  }
280  if ((s->http_code == 301 || s->http_code == 302 ||
281  s->http_code == 303 || s->http_code == 307) &&
282  location_changed == 1) {
283  /* url moved, get next */
284  ffurl_closep(&s->hd);
285  if (redirects++ >= MAX_REDIRECTS)
286  return AVERROR(EIO);
287  /* Restart the authentication process with the new target, which
288  * might use a different auth mechanism. */
289  memset(&s->auth_state, 0, sizeof(s->auth_state));
290  attempts = 0;
291  location_changed = 0;
292  goto redo;
293  }
294  return 0;
295 
296 fail:
297  if (s->hd)
298  ffurl_closep(&s->hd);
299  if (location_changed < 0)
300  return location_changed;
301  return ff_http_averror(s->http_code, AVERROR(EIO));
302 }
303 
304 int ff_http_do_new_request(URLContext *h, const char *uri)
305 {
306  HTTPContext *s = h->priv_data;
307  AVDictionary *options = NULL;
308  int ret;
309 
310  ret = http_shutdown(h, h->flags);
311  if (ret < 0)
312  return ret;
313 
314  s->end_chunked_post = 0;
315  s->chunkend = 0;
316  s->off = 0;
317  s->icy_data_read = 0;
318  av_free(s->location);
319  s->location = av_strdup(uri);
320  if (!s->location)
321  return AVERROR(ENOMEM);
322 
323  ret = http_open_cnx(h, &options);
324  av_dict_free(&options);
325  return ret;
326 }
327 
328 int ff_http_averror(int status_code, int default_averror)
329 {
330  switch (status_code) {
331  case 400: return AVERROR_HTTP_BAD_REQUEST;
332  case 401: return AVERROR_HTTP_UNAUTHORIZED;
333  case 403: return AVERROR_HTTP_FORBIDDEN;
334  case 404: return AVERROR_HTTP_NOT_FOUND;
335  default: break;
336  }
337  if (status_code >= 400 && status_code <= 499)
338  return AVERROR_HTTP_OTHER_4XX;
339  else if (status_code >= 500)
341  else
342  return default_averror;
343 }
344 
345 static int http_write_reply(URLContext* h, int status_code)
346 {
347  int ret, body = 0, reply_code, message_len;
348  const char *reply_text, *content_type;
349  HTTPContext *s = h->priv_data;
350  char message[BUFFER_SIZE];
351  content_type = "text/plain";
352 
353  if (status_code < 0)
354  body = 1;
355  switch (status_code) {
357  case 400:
358  reply_code = 400;
359  reply_text = "Bad Request";
360  break;
362  case 403:
363  reply_code = 403;
364  reply_text = "Forbidden";
365  break;
367  case 404:
368  reply_code = 404;
369  reply_text = "Not Found";
370  break;
371  case 200:
372  reply_code = 200;
373  reply_text = "OK";
374  content_type = s->content_type ? s->content_type : "application/octet-stream";
375  break;
377  case 500:
378  reply_code = 500;
379  reply_text = "Internal server error";
380  break;
381  default:
382  return AVERROR(EINVAL);
383  }
384  if (body) {
385  s->chunked_post = 0;
386  message_len = snprintf(message, sizeof(message),
387  "HTTP/1.1 %03d %s\r\n"
388  "Content-Type: %s\r\n"
389  "Content-Length: %"SIZE_SPECIFIER"\r\n"
390  "%s"
391  "\r\n"
392  "%03d %s\r\n",
393  reply_code,
394  reply_text,
395  content_type,
396  strlen(reply_text) + 6, // 3 digit status code + space + \r\n
397  s->headers ? s->headers : "",
398  reply_code,
399  reply_text);
400  } else {
401  s->chunked_post = 1;
402  message_len = snprintf(message, sizeof(message),
403  "HTTP/1.1 %03d %s\r\n"
404  "Content-Type: %s\r\n"
405  "Transfer-Encoding: chunked\r\n"
406  "%s"
407  "\r\n",
408  reply_code,
409  reply_text,
410  content_type,
411  s->headers ? s->headers : "");
412  }
413  av_log(h, AV_LOG_TRACE, "HTTP reply header: \n%s----\n", message);
414  if ((ret = ffurl_write(s->hd, message, message_len)) < 0)
415  return ret;
416  return 0;
417 }
418 
420 {
421  av_assert0(error < 0);
422  http_write_reply(h, error);
423 }
424 
426 {
427  int ret, err, new_location;
428  HTTPContext *ch = c->priv_data;
429  URLContext *cl = ch->hd;
430  switch (ch->handshake_step) {
431  case LOWER_PROTO:
432  av_log(c, AV_LOG_TRACE, "Lower protocol\n");
433  if ((ret = ffurl_handshake(cl)) > 0)
434  return 2 + ret;
435  if (ret < 0)
436  return ret;
438  ch->is_connected_server = 1;
439  return 2;
440  case READ_HEADERS:
441  av_log(c, AV_LOG_TRACE, "Read headers\n");
442  if ((err = http_read_header(c, &new_location)) < 0) {
443  handle_http_errors(c, err);
444  return err;
445  }
447  return 1;
448  case WRITE_REPLY_HEADERS:
449  av_log(c, AV_LOG_TRACE, "Reply code: %d\n", ch->reply_code);
450  if ((err = http_write_reply(c, ch->reply_code)) < 0)
451  return err;
452  ch->handshake_step = FINISH;
453  return 1;
454  case FINISH:
455  return 0;
456  }
457  // this should never be reached.
458  return AVERROR(EINVAL);
459 }
460 
461 static int http_listen(URLContext *h, const char *uri, int flags,
462  AVDictionary **options) {
463  HTTPContext *s = h->priv_data;
464  int ret;
465  char hostname[1024], proto[10];
466  char lower_url[100];
467  const char *lower_proto = "tcp";
468  int port;
469  av_url_split(proto, sizeof(proto), NULL, 0, hostname, sizeof(hostname), &port,
470  NULL, 0, uri);
471  if (!strcmp(proto, "https"))
472  lower_proto = "tls";
473  ff_url_join(lower_url, sizeof(lower_url), lower_proto, NULL, hostname, port,
474  NULL);
475  if ((ret = av_dict_set_int(options, "listen", s->listen, 0)) < 0)
476  goto fail;
477  if ((ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
478  &h->interrupt_callback, options,
480  )) < 0)
481  goto fail;
483  if (s->listen == HTTP_SINGLE) { /* single client */
484  s->reply_code = 200;
485  while ((ret = http_handshake(h)) > 0);
486  }
487 fail:
489  return ret;
490 }
491 
492 static int http_open(URLContext *h, const char *uri, int flags,
493  AVDictionary **options)
494 {
495  HTTPContext *s = h->priv_data;
496  int ret;
497 
498  if( s->seekable == 1 )
499  h->is_streamed = 0;
500  else
501  h->is_streamed = 1;
502 
503  s->filesize = UINT64_MAX;
504  s->location = av_strdup(uri);
505  if (!s->location)
506  return AVERROR(ENOMEM);
507  if (options)
508  av_dict_copy(&s->chained_options, *options, 0);
509 
510  if (s->headers) {
511  int len = strlen(s->headers);
512  if (len < 2 || strcmp("\r\n", s->headers + len - 2)) {
514  "No trailing CRLF found in HTTP header.\n");
515  ret = av_reallocp(&s->headers, len + 3);
516  if (ret < 0)
517  return ret;
518  s->headers[len] = '\r';
519  s->headers[len + 1] = '\n';
520  s->headers[len + 2] = '\0';
521  }
522  }
523 
524  if (s->listen) {
525  return http_listen(h, uri, flags, options);
526  }
527  ret = http_open_cnx(h, options);
528  if (ret < 0)
530  return ret;
531 }
532 
534 {
535  int ret;
536  HTTPContext *sc = s->priv_data;
537  HTTPContext *cc;
538  URLContext *sl = sc->hd;
539  URLContext *cl = NULL;
540 
541  av_assert0(sc->listen);
542  if ((ret = ffurl_alloc(c, s->filename, s->flags, &sl->interrupt_callback)) < 0)
543  goto fail;
544  cc = (*c)->priv_data;
545  if ((ret = ffurl_accept(sl, &cl)) < 0)
546  goto fail;
547  cc->hd = cl;
548  cc->is_multi_client = 1;
549 fail:
550  return ret;
551 }
552 
553 static int http_getc(HTTPContext *s)
554 {
555  int len;
556  if (s->buf_ptr >= s->buf_end) {
557  len = ffurl_read(s->hd, s->buffer, BUFFER_SIZE);
558  if (len < 0) {
559  return len;
560  } else if (len == 0) {
561  return AVERROR_EOF;
562  } else {
563  s->buf_ptr = s->buffer;
564  s->buf_end = s->buffer + len;
565  }
566  }
567  return *s->buf_ptr++;
568 }
569 
570 static int http_get_line(HTTPContext *s, char *line, int line_size)
571 {
572  int ch;
573  char *q;
574 
575  q = line;
576  for (;;) {
577  ch = http_getc(s);
578  if (ch < 0)
579  return ch;
580  if (ch == '\n') {
581  /* process line */
582  if (q > line && q[-1] == '\r')
583  q--;
584  *q = '\0';
585 
586  return 0;
587  } else {
588  if ((q - line) < line_size - 1)
589  *q++ = ch;
590  }
591  }
592 }
593 
594 static int check_http_code(URLContext *h, int http_code, const char *end)
595 {
596  HTTPContext *s = h->priv_data;
597  /* error codes are 4xx and 5xx, but regard 401 as a success, so we
598  * don't abort until all headers have been parsed. */
599  if (http_code >= 400 && http_code < 600 &&
600  (http_code != 401 || s->auth_state.auth_type != HTTP_AUTH_NONE) &&
601  (http_code != 407 || s->proxy_auth_state.auth_type != HTTP_AUTH_NONE)) {
602  end += strspn(end, SPACE_CHARS);
603  av_log(h, AV_LOG_WARNING, "HTTP error %d %s\n", http_code, end);
604  return ff_http_averror(http_code, AVERROR(EIO));
605  }
606  return 0;
607 }
608 
609 static int parse_location(HTTPContext *s, const char *p)
610 {
611  char redirected_location[MAX_URL_SIZE], *new_loc;
612  ff_make_absolute_url(redirected_location, sizeof(redirected_location),
613  s->location, p);
614  new_loc = av_strdup(redirected_location);
615  if (!new_loc)
616  return AVERROR(ENOMEM);
617  av_free(s->location);
618  s->location = new_loc;
619  return 0;
620 }
621 
622 /* "bytes $from-$to/$document_size" */
623 static void parse_content_range(URLContext *h, const char *p)
624 {
625  HTTPContext *s = h->priv_data;
626  const char *slash;
627 
628  if (!strncmp(p, "bytes ", 6)) {
629  p += 6;
630  s->off = strtoull(p, NULL, 10);
631  if ((slash = strchr(p, '/')) && strlen(slash) > 0)
632  s->filesize = strtoull(slash + 1, NULL, 10);
633  }
634  if (s->seekable == -1 && (!s->is_akamai || s->filesize != 2147483647))
635  h->is_streamed = 0; /* we _can_ in fact seek */
636 }
637 
638 static int parse_content_encoding(URLContext *h, const char *p)
639 {
640  if (!av_strncasecmp(p, "gzip", 4) ||
641  !av_strncasecmp(p, "deflate", 7)) {
642 #if CONFIG_ZLIB
643  HTTPContext *s = h->priv_data;
644 
645  s->compressed = 1;
646  inflateEnd(&s->inflate_stream);
647  if (inflateInit2(&s->inflate_stream, 32 + 15) != Z_OK) {
648  av_log(h, AV_LOG_WARNING, "Error during zlib initialisation: %s\n",
649  s->inflate_stream.msg);
650  return AVERROR(ENOSYS);
651  }
652  if (zlibCompileFlags() & (1 << 17)) {
654  "Your zlib was compiled without gzip support.\n");
655  return AVERROR(ENOSYS);
656  }
657 #else
659  "Compressed (%s) content, need zlib with gzip support\n", p);
660  return AVERROR(ENOSYS);
661 #endif /* CONFIG_ZLIB */
662  } else if (!av_strncasecmp(p, "identity", 8)) {
663  // The normal, no-encoding case (although servers shouldn't include
664  // the header at all if this is the case).
665  } else {
666  av_log(h, AV_LOG_WARNING, "Unknown content coding: %s\n", p);
667  }
668  return 0;
669 }
670 
671 // Concat all Icy- header lines
672 static int parse_icy(HTTPContext *s, const char *tag, const char *p)
673 {
674  int len = 4 + strlen(p) + strlen(tag);
675  int is_first = !s->icy_metadata_headers;
676  int ret;
677 
678  av_dict_set(&s->metadata, tag, p, 0);
679 
680  if (s->icy_metadata_headers)
681  len += strlen(s->icy_metadata_headers);
682 
683  if ((ret = av_reallocp(&s->icy_metadata_headers, len)) < 0)
684  return ret;
685 
686  if (is_first)
687  *s->icy_metadata_headers = '\0';
688 
689  av_strlcatf(s->icy_metadata_headers, len, "%s: %s\n", tag, p);
690 
691  return 0;
692 }
693 
694 static int parse_set_cookie_expiry_time(const char *exp_str, struct tm *buf)
695 {
696  char exp_buf[MAX_EXPIRY];
697  int i, j, exp_buf_len = MAX_EXPIRY-1;
698  char *expiry;
699 
700  // strip off any punctuation or whitespace
701  for (i = 0, j = 0; exp_str[i] != '\0' && j < exp_buf_len; i++) {
702  if ((exp_str[i] >= '0' && exp_str[i] <= '9') ||
703  (exp_str[i] >= 'A' && exp_str[i] <= 'Z') ||
704  (exp_str[i] >= 'a' && exp_str[i] <= 'z')) {
705  exp_buf[j] = exp_str[i];
706  j++;
707  }
708  }
709  exp_buf[j] = '\0';
710  expiry = exp_buf;
711 
712  // move the string beyond the day of week
713  while ((*expiry < '0' || *expiry > '9') && *expiry != '\0')
714  expiry++;
715 
716  return av_small_strptime(expiry, "%d%b%Y%H%M%S", buf) ? 0 : AVERROR(EINVAL);
717 }
718 
719 static int parse_set_cookie(const char *set_cookie, AVDictionary **dict)
720 {
721  char *param, *next_param, *cstr, *back;
722 
723  if (!(cstr = av_strdup(set_cookie)))
724  return AVERROR(EINVAL);
725 
726  // strip any trailing whitespace
727  back = &cstr[strlen(cstr)-1];
728  while (strchr(WHITESPACES, *back)) {
729  *back='\0';
730  back--;
731  }
732 
733  next_param = cstr;
734  while ((param = av_strtok(next_param, ";", &next_param))) {
735  char *name, *value;
736  param += strspn(param, WHITESPACES);
737  if ((name = av_strtok(param, "=", &value))) {
738  if (av_dict_set(dict, name, value, 0) < 0) {
739  av_free(cstr);
740  return -1;
741  }
742  }
743  }
744 
745  av_free(cstr);
746  return 0;
747 }
748 
749 static int parse_cookie(HTTPContext *s, const char *p, AVDictionary **cookies)
750 {
751  AVDictionary *new_params = NULL;
752  AVDictionaryEntry *e, *cookie_entry;
753  char *eql, *name;
754 
755  // ensure the cookie is parsable
756  if (parse_set_cookie(p, &new_params))
757  return -1;
758 
759  // if there is no cookie value there is nothing to parse
760  cookie_entry = av_dict_get(new_params, "", NULL, AV_DICT_IGNORE_SUFFIX);
761  if (!cookie_entry || !cookie_entry->value) {
762  av_dict_free(&new_params);
763  return -1;
764  }
765 
766  // ensure the cookie is not expired or older than an existing value
767  if ((e = av_dict_get(new_params, "expires", NULL, 0)) && e->value) {
768  struct tm new_tm = {0};
769  if (!parse_set_cookie_expiry_time(e->value, &new_tm)) {
770  AVDictionaryEntry *e2;
771 
772  // if the cookie has already expired ignore it
773  if (av_timegm(&new_tm) < av_gettime() / 1000000) {
774  av_dict_free(&new_params);
775  return -1;
776  }
777 
778  // only replace an older cookie with the same name
779  e2 = av_dict_get(*cookies, cookie_entry->key, NULL, 0);
780  if (e2 && e2->value) {
781  AVDictionary *old_params = NULL;
782  if (!parse_set_cookie(p, &old_params)) {
783  e2 = av_dict_get(old_params, "expires", NULL, 0);
784  if (e2 && e2->value) {
785  struct tm old_tm = {0};
786  if (!parse_set_cookie_expiry_time(e->value, &old_tm)) {
787  if (av_timegm(&new_tm) < av_timegm(&old_tm)) {
788  av_dict_free(&new_params);
789  av_dict_free(&old_params);
790  return -1;
791  }
792  }
793  }
794  }
795  av_dict_free(&old_params);
796  }
797  }
798  }
799 
800  // duplicate the cookie name (dict will dupe the value)
801  if (!(eql = strchr(p, '='))) return AVERROR(EINVAL);
802  if (!(name = av_strndup(p, eql - p))) return AVERROR(ENOMEM);
803 
804  // add the cookie to the dictionary
805  av_dict_set(cookies, name, eql, AV_DICT_DONT_STRDUP_KEY);
806 
807  return 0;
808 }
809 
810 static int cookie_string(AVDictionary *dict, char **cookies)
811 {
812  AVDictionaryEntry *e = NULL;
813  int len = 1;
814 
815  // determine how much memory is needed for the cookies string
816  while (e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))
817  len += strlen(e->key) + strlen(e->value) + 1;
818 
819  // reallocate the cookies
820  e = NULL;
821  if (*cookies) av_free(*cookies);
822  *cookies = av_malloc(len);
823  if (!*cookies) return AVERROR(ENOMEM);
824  *cookies[0] = '\0';
825 
826  // write out the cookies
827  while (e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))
828  av_strlcatf(*cookies, len, "%s%s\n", e->key, e->value);
829 
830  return 0;
831 }
832 
833 static int process_line(URLContext *h, char *line, int line_count,
834  int *new_location)
835 {
836  HTTPContext *s = h->priv_data;
837  const char *auto_method = h->flags & AVIO_FLAG_READ ? "POST" : "GET";
838  char *tag, *p, *end, *method, *resource, *version;
839  int ret;
840 
841  /* end of header */
842  if (line[0] == '\0') {
843  s->end_header = 1;
844  return 0;
845  }
846 
847  p = line;
848  if (line_count == 0) {
849  if (s->is_connected_server) {
850  // HTTP method
851  method = p;
852  while (*p && !av_isspace(*p))
853  p++;
854  *(p++) = '\0';
855  av_log(h, AV_LOG_TRACE, "Received method: %s\n", method);
856  if (s->method) {
857  if (av_strcasecmp(s->method, method)) {
858  av_log(h, AV_LOG_ERROR, "Received and expected HTTP method do not match. (%s expected, %s received)\n",
859  s->method, method);
860  return ff_http_averror(400, AVERROR(EIO));
861  }
862  } else {
863  // use autodetected HTTP method to expect
864  av_log(h, AV_LOG_TRACE, "Autodetected %s HTTP method\n", auto_method);
865  if (av_strcasecmp(auto_method, method)) {
866  av_log(h, AV_LOG_ERROR, "Received and autodetected HTTP method did not match "
867  "(%s autodetected %s received)\n", auto_method, method);
868  return ff_http_averror(400, AVERROR(EIO));
869  }
870  if (!(s->method = av_strdup(method)))
871  return AVERROR(ENOMEM);
872  }
873 
874  // HTTP resource
875  while (av_isspace(*p))
876  p++;
877  resource = p;
878  while (!av_isspace(*p))
879  p++;
880  *(p++) = '\0';
881  av_log(h, AV_LOG_TRACE, "Requested resource: %s\n", resource);
882  if (!(s->resource = av_strdup(resource)))
883  return AVERROR(ENOMEM);
884 
885  // HTTP version
886  while (av_isspace(*p))
887  p++;
888  version = p;
889  while (*p && !av_isspace(*p))
890  p++;
891  *p = '\0';
892  if (av_strncasecmp(version, "HTTP/", 5)) {
893  av_log(h, AV_LOG_ERROR, "Malformed HTTP version string.\n");
894  return ff_http_averror(400, AVERROR(EIO));
895  }
896  av_log(h, AV_LOG_TRACE, "HTTP version string: %s\n", version);
897  } else {
898  while (!av_isspace(*p) && *p != '\0')
899  p++;
900  while (av_isspace(*p))
901  p++;
902  s->http_code = strtol(p, &end, 10);
903 
904  av_log(h, AV_LOG_TRACE, "http_code=%d\n", s->http_code);
905 
906  if ((ret = check_http_code(h, s->http_code, end)) < 0)
907  return ret;
908  }
909  } else {
910  while (*p != '\0' && *p != ':')
911  p++;
912  if (*p != ':')
913  return 1;
914 
915  *p = '\0';
916  tag = line;
917  p++;
918  while (av_isspace(*p))
919  p++;
920  if (!av_strcasecmp(tag, "Location")) {
921  if ((ret = parse_location(s, p)) < 0)
922  return ret;
923  *new_location = 1;
924  } else if (!av_strcasecmp(tag, "Content-Length") &&
925  s->filesize == UINT64_MAX) {
926  s->filesize = strtoull(p, NULL, 10);
927  } else if (!av_strcasecmp(tag, "Content-Range")) {
928  parse_content_range(h, p);
929  } else if (!av_strcasecmp(tag, "Accept-Ranges") &&
930  !strncmp(p, "bytes", 5) &&
931  s->seekable == -1) {
932  h->is_streamed = 0;
933  } else if (!av_strcasecmp(tag, "Transfer-Encoding") &&
934  !av_strncasecmp(p, "chunked", 7)) {
935  s->filesize = UINT64_MAX;
936  s->chunksize = 0;
937  } else if (!av_strcasecmp(tag, "WWW-Authenticate")) {
939  } else if (!av_strcasecmp(tag, "Authentication-Info")) {
941  } else if (!av_strcasecmp(tag, "Proxy-Authenticate")) {
943  } else if (!av_strcasecmp(tag, "Connection")) {
944  if (!strcmp(p, "close"))
945  s->willclose = 1;
946  } else if (!av_strcasecmp(tag, "Server")) {
947  if (!av_strcasecmp(p, "AkamaiGHost")) {
948  s->is_akamai = 1;
949  } else if (!av_strncasecmp(p, "MediaGateway", 12)) {
950  s->is_mediagateway = 1;
951  }
952  } else if (!av_strcasecmp(tag, "Content-Type")) {
953  av_free(s->mime_type);
954  s->mime_type = av_strdup(p);
955  } else if (!av_strcasecmp(tag, "Set-Cookie")) {
956  if (parse_cookie(s, p, &s->cookie_dict))
957  av_log(h, AV_LOG_WARNING, "Unable to parse '%s'\n", p);
958  } else if (!av_strcasecmp(tag, "Icy-MetaInt")) {
959  s->icy_metaint = strtoull(p, NULL, 10);
960  } else if (!av_strncasecmp(tag, "Icy-", 4)) {
961  if ((ret = parse_icy(s, tag, p)) < 0)
962  return ret;
963  } else if (!av_strcasecmp(tag, "Content-Encoding")) {
964  if ((ret = parse_content_encoding(h, p)) < 0)
965  return ret;
966  }
967  }
968  return 1;
969 }
970 
971 /**
972  * Create a string containing cookie values for use as a HTTP cookie header
973  * field value for a particular path and domain from the cookie values stored in
974  * the HTTP protocol context. The cookie string is stored in *cookies.
975  *
976  * @return a negative value if an error condition occurred, 0 otherwise
977  */
978 static int get_cookies(HTTPContext *s, char **cookies, const char *path,
979  const char *domain)
980 {
981  // cookie strings will look like Set-Cookie header field values. Multiple
982  // Set-Cookie fields will result in multiple values delimited by a newline
983  int ret = 0;
984  char *cookie, *set_cookies = av_strdup(s->cookies), *next = set_cookies;
985 
986  if (!set_cookies) return AVERROR(EINVAL);
987 
988  // destroy any cookies in the dictionary.
990 
991  *cookies = NULL;
992  while ((cookie = av_strtok(next, "\n", &next))) {
993  AVDictionary *cookie_params = NULL;
994  AVDictionaryEntry *cookie_entry, *e;
995 
996  // store the cookie in a dict in case it is updated in the response
997  if (parse_cookie(s, cookie, &s->cookie_dict))
998  av_log(s, AV_LOG_WARNING, "Unable to parse '%s'\n", cookie);
999 
1000  // continue on to the next cookie if this one cannot be parsed
1001  if (parse_set_cookie(cookie, &cookie_params))
1002  continue;
1003 
1004  // if the cookie has no value, skip it
1005  cookie_entry = av_dict_get(cookie_params, "", NULL, AV_DICT_IGNORE_SUFFIX);
1006  if (!cookie_entry || !cookie_entry->value) {
1007  av_dict_free(&cookie_params);
1008  continue;
1009  }
1010 
1011  // if the cookie has expired, don't add it
1012  if ((e = av_dict_get(cookie_params, "expires", NULL, 0)) && e->value) {
1013  struct tm tm_buf = {0};
1014  if (!parse_set_cookie_expiry_time(e->value, &tm_buf)) {
1015  if (av_timegm(&tm_buf) < av_gettime() / 1000000) {
1016  av_dict_free(&cookie_params);
1017  continue;
1018  }
1019  }
1020  }
1021 
1022  // if no domain in the cookie assume it appied to this request
1023  if ((e = av_dict_get(cookie_params, "domain", NULL, 0)) && e->value) {
1024  // find the offset comparison is on the min domain (b.com, not a.b.com)
1025  int domain_offset = strlen(domain) - strlen(e->value);
1026  if (domain_offset < 0) {
1027  av_dict_free(&cookie_params);
1028  continue;
1029  }
1030 
1031  // match the cookie domain
1032  if (av_strcasecmp(&domain[domain_offset], e->value)) {
1033  av_dict_free(&cookie_params);
1034  continue;
1035  }
1036  }
1037 
1038  // ensure this cookie matches the path
1039  e = av_dict_get(cookie_params, "path", NULL, 0);
1040  if (!e || av_strncasecmp(path, e->value, strlen(e->value))) {
1041  av_dict_free(&cookie_params);
1042  continue;
1043  }
1044 
1045  // cookie parameters match, so copy the value
1046  if (!*cookies) {
1047  if (!(*cookies = av_asprintf("%s=%s", cookie_entry->key, cookie_entry->value))) {
1048  ret = AVERROR(ENOMEM);
1049  break;
1050  }
1051  } else {
1052  char *tmp = *cookies;
1053  size_t str_size = strlen(cookie_entry->key) + strlen(cookie_entry->value) + strlen(*cookies) + 4;
1054  if (!(*cookies = av_malloc(str_size))) {
1055  ret = AVERROR(ENOMEM);
1056  av_free(tmp);
1057  break;
1058  }
1059  snprintf(*cookies, str_size, "%s; %s=%s", tmp, cookie_entry->key, cookie_entry->value);
1060  av_free(tmp);
1061  }
1062  }
1063 
1064  av_free(set_cookies);
1065 
1066  return ret;
1067 }
1068 
1069 static inline int has_header(const char *str, const char *header)
1070 {
1071  /* header + 2 to skip over CRLF prefix. (make sure you have one!) */
1072  if (!str)
1073  return 0;
1074  return av_stristart(str, header + 2, NULL) || av_stristr(str, header);
1075 }
1076 
1077 static int http_read_header(URLContext *h, int *new_location)
1078 {
1079  HTTPContext *s = h->priv_data;
1080  char line[MAX_URL_SIZE];
1081  int err = 0;
1082 
1083  s->chunksize = UINT64_MAX;
1084 
1085  for (;;) {
1086  if ((err = http_get_line(s, line, sizeof(line))) < 0)
1087  return err;
1088 
1089  av_log(h, AV_LOG_TRACE, "header='%s'\n", line);
1090 
1091  err = process_line(h, line, s->line_count, new_location);
1092  if (err < 0)
1093  return err;
1094  if (err == 0)
1095  break;
1096  s->line_count++;
1097  }
1098 
1099  if (s->seekable == -1 && s->is_mediagateway && s->filesize == 2000000000)
1100  h->is_streamed = 1; /* we can in fact _not_ seek */
1101 
1102  // add any new cookies into the existing cookie string
1105 
1106  return err;
1107 }
1108 
1109 static int http_connect(URLContext *h, const char *path, const char *local_path,
1110  const char *hoststr, const char *auth,
1111  const char *proxyauth, int *new_location)
1112 {
1113  HTTPContext *s = h->priv_data;
1114  int post, err;
1115  char headers[HTTP_HEADERS_SIZE] = "";
1116  char *authstr = NULL, *proxyauthstr = NULL;
1117  uint64_t off = s->off;
1118  int len = 0;
1119  const char *method;
1120  int send_expect_100 = 0;
1121  int ret;
1122 
1123  /* send http header */
1124  post = h->flags & AVIO_FLAG_WRITE;
1125 
1126  if (s->post_data) {
1127  /* force POST method and disable chunked encoding when
1128  * custom HTTP post data is set */
1129  post = 1;
1130  s->chunked_post = 0;
1131  }
1132 
1133  if (s->method)
1134  method = s->method;
1135  else
1136  method = post ? "POST" : "GET";
1137 
1138  authstr = ff_http_auth_create_response(&s->auth_state, auth,
1139  local_path, method);
1140  proxyauthstr = ff_http_auth_create_response(&s->proxy_auth_state, proxyauth,
1141  local_path, method);
1142  if (post && !s->post_data) {
1143  send_expect_100 = s->send_expect_100;
1144  /* The user has supplied authentication but we don't know the auth type,
1145  * send Expect: 100-continue to get the 401 response including the
1146  * WWW-Authenticate header, or an 100 continue if no auth actually
1147  * is needed. */
1148  if (auth && *auth &&
1150  s->http_code != 401)
1151  send_expect_100 = 1;
1152  }
1153 
1154 #if FF_API_HTTP_USER_AGENT
1155  if (strcmp(s->user_agent_deprecated, DEFAULT_USER_AGENT)) {
1156  av_log(s, AV_LOG_WARNING, "the user-agent option is deprecated, please use user_agent option\n");
1157  s->user_agent = av_strdup(s->user_agent_deprecated);
1158  }
1159 #endif
1160  /* set default headers if needed */
1161  if (!has_header(s->headers, "\r\nUser-Agent: "))
1162  len += av_strlcatf(headers + len, sizeof(headers) - len,
1163  "User-Agent: %s\r\n", s->user_agent);
1164  if (!has_header(s->headers, "\r\nAccept: "))
1165  len += av_strlcpy(headers + len, "Accept: */*\r\n",
1166  sizeof(headers) - len);
1167  // Note: we send this on purpose even when s->off is 0 when we're probing,
1168  // since it allows us to detect more reliably if a (non-conforming)
1169  // server supports seeking by analysing the reply headers.
1170  if (!has_header(s->headers, "\r\nRange: ") && !post && (s->off > 0 || s->end_off || s->seekable == -1)) {
1171  len += av_strlcatf(headers + len, sizeof(headers) - len,
1172  "Range: bytes=%"PRIu64"-", s->off);
1173  if (s->end_off)
1174  len += av_strlcatf(headers + len, sizeof(headers) - len,
1175  "%"PRId64, s->end_off - 1);
1176  len += av_strlcpy(headers + len, "\r\n",
1177  sizeof(headers) - len);
1178  }
1179  if (send_expect_100 && !has_header(s->headers, "\r\nExpect: "))
1180  len += av_strlcatf(headers + len, sizeof(headers) - len,
1181  "Expect: 100-continue\r\n");
1182 
1183  if (!has_header(s->headers, "\r\nConnection: ")) {
1184  if (s->multiple_requests)
1185  len += av_strlcpy(headers + len, "Connection: keep-alive\r\n",
1186  sizeof(headers) - len);
1187  else
1188  len += av_strlcpy(headers + len, "Connection: close\r\n",
1189  sizeof(headers) - len);
1190  }
1191 
1192  if (!has_header(s->headers, "\r\nHost: "))
1193  len += av_strlcatf(headers + len, sizeof(headers) - len,
1194  "Host: %s\r\n", hoststr);
1195  if (!has_header(s->headers, "\r\nContent-Length: ") && s->post_data)
1196  len += av_strlcatf(headers + len, sizeof(headers) - len,
1197  "Content-Length: %d\r\n", s->post_datalen);
1198 
1199  if (!has_header(s->headers, "\r\nContent-Type: ") && s->content_type)
1200  len += av_strlcatf(headers + len, sizeof(headers) - len,
1201  "Content-Type: %s\r\n", s->content_type);
1202  if (!has_header(s->headers, "\r\nCookie: ") && s->cookies) {
1203  char *cookies = NULL;
1204  if (!get_cookies(s, &cookies, path, hoststr) && cookies) {
1205  len += av_strlcatf(headers + len, sizeof(headers) - len,
1206  "Cookie: %s\r\n", cookies);
1207  av_free(cookies);
1208  }
1209  }
1210  if (!has_header(s->headers, "\r\nIcy-MetaData: ") && s->icy)
1211  len += av_strlcatf(headers + len, sizeof(headers) - len,
1212  "Icy-MetaData: %d\r\n", 1);
1213 
1214  /* now add in custom headers */
1215  if (s->headers)
1216  av_strlcpy(headers + len, s->headers, sizeof(headers) - len);
1217 
1218  ret = snprintf(s->buffer, sizeof(s->buffer),
1219  "%s %s HTTP/1.1\r\n"
1220  "%s"
1221  "%s"
1222  "%s"
1223  "%s%s"
1224  "\r\n",
1225  method,
1226  path,
1227  post && s->chunked_post ? "Transfer-Encoding: chunked\r\n" : "",
1228  headers,
1229  authstr ? authstr : "",
1230  proxyauthstr ? "Proxy-" : "", proxyauthstr ? proxyauthstr : "");
1231 
1232  av_log(h, AV_LOG_DEBUG, "request: %s\n", s->buffer);
1233 
1234  if (strlen(headers) + 1 == sizeof(headers) ||
1235  ret >= sizeof(s->buffer)) {
1236  av_log(h, AV_LOG_ERROR, "overlong headers\n");
1237  err = AVERROR(EINVAL);
1238  goto done;
1239  }
1240 
1241 
1242  if ((err = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
1243  goto done;
1244 
1245  if (s->post_data)
1246  if ((err = ffurl_write(s->hd, s->post_data, s->post_datalen)) < 0)
1247  goto done;
1248 
1249  /* init input buffer */
1250  s->buf_ptr = s->buffer;
1251  s->buf_end = s->buffer;
1252  s->line_count = 0;
1253  s->off = 0;
1254  s->icy_data_read = 0;
1255  s->filesize = UINT64_MAX;
1256  s->willclose = 0;
1257  s->end_chunked_post = 0;
1258  s->end_header = 0;
1259 #if CONFIG_ZLIB
1260  s->compressed = 0;
1261 #endif
1262  if (post && !s->post_data && !send_expect_100) {
1263  /* Pretend that it did work. We didn't read any header yet, since
1264  * we've still to send the POST data, but the code calling this
1265  * function will check http_code after we return. */
1266  s->http_code = 200;
1267  err = 0;
1268  goto done;
1269  }
1270 
1271  /* wait for header */
1272  err = http_read_header(h, new_location);
1273  if (err < 0)
1274  goto done;
1275 
1276  if (*new_location)
1277  s->off = off;
1278 
1279  err = (off == s->off) ? 0 : -1;
1280 done:
1281  av_freep(&authstr);
1282  av_freep(&proxyauthstr);
1283  return err;
1284 }
1285 
1287 {
1288  HTTPContext *s = h->priv_data;
1289  int len;
1290 
1291  if (s->chunksize != UINT64_MAX) {
1292  if (s->chunkend) {
1293  return AVERROR_EOF;
1294  }
1295  if (!s->chunksize) {
1296  char line[32];
1297  int err;
1298 
1299  do {
1300  if ((err = http_get_line(s, line, sizeof(line))) < 0)
1301  return err;
1302  } while (!*line); /* skip CR LF from last chunk */
1303 
1304  s->chunksize = strtoull(line, NULL, 16);
1305 
1306  av_log(h, AV_LOG_TRACE,
1307  "Chunked encoding data size: %"PRIu64"\n",
1308  s->chunksize);
1309 
1310  if (!s->chunksize && s->multiple_requests) {
1311  http_get_line(s, line, sizeof(line)); // read empty chunk
1312  s->chunkend = 1;
1313  return 0;
1314  }
1315  else if (!s->chunksize) {
1316  av_log(h, AV_LOG_DEBUG, "Last chunk received, closing conn\n");
1317  ffurl_closep(&s->hd);
1318  return 0;
1319  }
1320  else if (s->chunksize == UINT64_MAX) {
1321  av_log(h, AV_LOG_ERROR, "Invalid chunk size %"PRIu64"\n",
1322  s->chunksize);
1323  return AVERROR(EINVAL);
1324  }
1325  }
1326  size = FFMIN(size, s->chunksize);
1327  }
1328 
1329  /* read bytes from input buffer first */
1330  len = s->buf_end - s->buf_ptr;
1331  if (len > 0) {
1332  if (len > size)
1333  len = size;
1334  memcpy(buf, s->buf_ptr, len);
1335  s->buf_ptr += len;
1336  } else {
1337  uint64_t target_end = s->end_off ? s->end_off : s->filesize;
1338  if ((!s->willclose || s->chunksize == UINT64_MAX) && s->off >= target_end)
1339  return AVERROR_EOF;
1340  len = ffurl_read(s->hd, buf, size);
1341  if (!len && (!s->willclose || s->chunksize == UINT64_MAX) && s->off < target_end) {
1342  av_log(h, AV_LOG_ERROR,
1343  "Stream ends prematurely at %"PRIu64", should be %"PRIu64"\n",
1344  s->off, target_end
1345  );
1346  return AVERROR(EIO);
1347  }
1348  }
1349  if (len > 0) {
1350  s->off += len;
1351  if (s->chunksize > 0 && s->chunksize != UINT64_MAX) {
1352  av_assert0(s->chunksize >= len);
1353  s->chunksize -= len;
1354  }
1355  }
1356  return len;
1357 }
1358 
1359 #if CONFIG_ZLIB
1360 #define DECOMPRESS_BUF_SIZE (256 * 1024)
1361 static int http_buf_read_compressed(URLContext *h, uint8_t *buf, int size)
1362 {
1363  HTTPContext *s = h->priv_data;
1364  int ret;
1365 
1366  if (!s->inflate_buffer) {
1367  s->inflate_buffer = av_malloc(DECOMPRESS_BUF_SIZE);
1368  if (!s->inflate_buffer)
1369  return AVERROR(ENOMEM);
1370  }
1371 
1372  if (s->inflate_stream.avail_in == 0) {
1373  int read = http_buf_read(h, s->inflate_buffer, DECOMPRESS_BUF_SIZE);
1374  if (read <= 0)
1375  return read;
1376  s->inflate_stream.next_in = s->inflate_buffer;
1377  s->inflate_stream.avail_in = read;
1378  }
1379 
1380  s->inflate_stream.avail_out = size;
1381  s->inflate_stream.next_out = buf;
1382 
1383  ret = inflate(&s->inflate_stream, Z_SYNC_FLUSH);
1384  if (ret != Z_OK && ret != Z_STREAM_END)
1385  av_log(h, AV_LOG_WARNING, "inflate return value: %d, %s\n",
1386  ret, s->inflate_stream.msg);
1387 
1388  return size - s->inflate_stream.avail_out;
1389 }
1390 #endif /* CONFIG_ZLIB */
1391 
1392 static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect);
1393 
1394 static int http_read_stream(URLContext *h, uint8_t *buf, int size)
1395 {
1396  HTTPContext *s = h->priv_data;
1397  int err, new_location, read_ret;
1398  int64_t seek_ret;
1399 
1400  if (!s->hd)
1401  return AVERROR_EOF;
1402 
1403  if (s->end_chunked_post && !s->end_header) {
1404  err = http_read_header(h, &new_location);
1405  if (err < 0)
1406  return err;
1407  }
1408 
1409 #if CONFIG_ZLIB
1410  if (s->compressed)
1411  return http_buf_read_compressed(h, buf, size);
1412 #endif /* CONFIG_ZLIB */
1413  read_ret = http_buf_read(h, buf, size);
1414  if ( (read_ret < 0 && s->reconnect && (!h->is_streamed || s->reconnect_streamed) && s->filesize > 0 && s->off < s->filesize)
1415  || (read_ret == 0 && s->reconnect_at_eof && (!h->is_streamed || s->reconnect_streamed))) {
1416  uint64_t target = h->is_streamed ? 0 : s->off;
1417 
1419  return AVERROR(EIO);
1420 
1421  av_log(h, AV_LOG_INFO, "Will reconnect at %"PRIu64" error=%s.\n", s->off, av_err2str(read_ret));
1422  av_usleep(1000U*1000*s->reconnect_delay);
1423  s->reconnect_delay = 1 + 2*s->reconnect_delay;
1424  seek_ret = http_seek_internal(h, target, SEEK_SET, 1);
1425  if (seek_ret != target) {
1426  av_log(h, AV_LOG_ERROR, "Failed to reconnect at %"PRIu64".\n", target);
1427  return read_ret;
1428  }
1429 
1430  read_ret = http_buf_read(h, buf, size);
1431  } else
1432  s->reconnect_delay = 0;
1433 
1434  return read_ret;
1435 }
1436 
1437 // Like http_read_stream(), but no short reads.
1438 // Assumes partial reads are an error.
1439 static int http_read_stream_all(URLContext *h, uint8_t *buf, int size)
1440 {
1441  int pos = 0;
1442  while (pos < size) {
1443  int len = http_read_stream(h, buf + pos, size - pos);
1444  if (len < 0)
1445  return len;
1446  pos += len;
1447  }
1448  return pos;
1449 }
1450 
1451 static void update_metadata(HTTPContext *s, char *data)
1452 {
1453  char *key;
1454  char *val;
1455  char *end;
1456  char *next = data;
1457 
1458  while (*next) {
1459  key = next;
1460  val = strstr(key, "='");
1461  if (!val)
1462  break;
1463  end = strstr(val, "';");
1464  if (!end)
1465  break;
1466 
1467  *val = '\0';
1468  *end = '\0';
1469  val += 2;
1470 
1471  av_dict_set(&s->metadata, key, val, 0);
1472 
1473  next = end + 2;
1474  }
1475 }
1476 
1477 static int store_icy(URLContext *h, int size)
1478 {
1479  HTTPContext *s = h->priv_data;
1480  /* until next metadata packet */
1481  uint64_t remaining;
1482 
1483  if (s->icy_metaint < s->icy_data_read)
1484  return AVERROR_INVALIDDATA;
1485  remaining = s->icy_metaint - s->icy_data_read;
1486 
1487  if (!remaining) {
1488  /* The metadata packet is variable sized. It has a 1 byte header
1489  * which sets the length of the packet (divided by 16). If it's 0,
1490  * the metadata doesn't change. After the packet, icy_metaint bytes
1491  * of normal data follows. */
1492  uint8_t ch;
1493  int len = http_read_stream_all(h, &ch, 1);
1494  if (len < 0)
1495  return len;
1496  if (ch > 0) {
1497  char data[255 * 16 + 1];
1498  int ret;
1499  len = ch * 16;
1500  ret = http_read_stream_all(h, data, len);
1501  if (ret < 0)
1502  return ret;
1503  data[len + 1] = 0;
1504  if ((ret = av_opt_set(s, "icy_metadata_packet", data, 0)) < 0)
1505  return ret;
1506  update_metadata(s, data);
1507  }
1508  s->icy_data_read = 0;
1509  remaining = s->icy_metaint;
1510  }
1511 
1512  return FFMIN(size, remaining);
1513 }
1514 
1515 static int http_read(URLContext *h, uint8_t *buf, int size)
1516 {
1517  HTTPContext *s = h->priv_data;
1518 
1519  if (s->icy_metaint > 0) {
1520  size = store_icy(h, size);
1521  if (size < 0)
1522  return size;
1523  }
1524 
1525  size = http_read_stream(h, buf, size);
1526  if (size > 0)
1527  s->icy_data_read += size;
1528  return size;
1529 }
1530 
1531 /* used only when posting data */
1532 static int http_write(URLContext *h, const uint8_t *buf, int size)
1533 {
1534  char temp[11] = ""; /* 32-bit hex + CRLF + nul */
1535  int ret;
1536  char crlf[] = "\r\n";
1537  HTTPContext *s = h->priv_data;
1538 
1539  if (!s->chunked_post) {
1540  /* non-chunked data is sent without any special encoding */
1541  return ffurl_write(s->hd, buf, size);
1542  }
1543 
1544  /* silently ignore zero-size data since chunk encoding that would
1545  * signal EOF */
1546  if (size > 0) {
1547  /* upload data using chunked encoding */
1548  snprintf(temp, sizeof(temp), "%x\r\n", size);
1549 
1550  if ((ret = ffurl_write(s->hd, temp, strlen(temp))) < 0 ||
1551  (ret = ffurl_write(s->hd, buf, size)) < 0 ||
1552  (ret = ffurl_write(s->hd, crlf, sizeof(crlf) - 1)) < 0)
1553  return ret;
1554  }
1555  return size;
1556 }
1557 
1558 static int http_shutdown(URLContext *h, int flags)
1559 {
1560  int ret = 0;
1561  char footer[] = "0\r\n\r\n";
1562  HTTPContext *s = h->priv_data;
1563 
1564  /* signal end of chunked encoding if used */
1565  if (((flags & AVIO_FLAG_WRITE) && s->chunked_post) ||
1566  ((flags & AVIO_FLAG_READ) && s->chunked_post && s->listen)) {
1567  ret = ffurl_write(s->hd, footer, sizeof(footer) - 1);
1568  ret = ret > 0 ? 0 : ret;
1569  s->end_chunked_post = 1;
1570  }
1571 
1572  return ret;
1573 }
1574 
1575 static int http_close(URLContext *h)
1576 {
1577  int ret = 0;
1578  HTTPContext *s = h->priv_data;
1579 
1580 #if CONFIG_ZLIB
1581  inflateEnd(&s->inflate_stream);
1582  av_freep(&s->inflate_buffer);
1583 #endif /* CONFIG_ZLIB */
1584 
1585  if (!s->end_chunked_post)
1586  /* Close the write direction by sending the end of chunked encoding. */
1587  ret = http_shutdown(h, h->flags);
1588 
1589  if (s->hd)
1590  ffurl_closep(&s->hd);
1592  return ret;
1593 }
1594 
1595 static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect)
1596 {
1597  HTTPContext *s = h->priv_data;
1598  URLContext *old_hd = s->hd;
1599  uint64_t old_off = s->off;
1600  uint8_t old_buf[BUFFER_SIZE];
1601  int old_buf_size, ret;
1602  AVDictionary *options = NULL;
1603 
1604  if (whence == AVSEEK_SIZE)
1605  return s->filesize;
1606  else if (!force_reconnect &&
1607  ((whence == SEEK_CUR && off == 0) ||
1608  (whence == SEEK_SET && off == s->off)))
1609  return s->off;
1610  else if ((s->filesize == UINT64_MAX && whence == SEEK_END))
1611  return AVERROR(ENOSYS);
1612 
1613  if (whence == SEEK_CUR)
1614  off += s->off;
1615  else if (whence == SEEK_END)
1616  off += s->filesize;
1617  else if (whence != SEEK_SET)
1618  return AVERROR(EINVAL);
1619  if (off < 0)
1620  return AVERROR(EINVAL);
1621  s->off = off;
1622 
1623  if (s->off && h->is_streamed)
1624  return AVERROR(ENOSYS);
1625 
1626  /* we save the old context in case the seek fails */
1627  old_buf_size = s->buf_end - s->buf_ptr;
1628  memcpy(old_buf, s->buf_ptr, old_buf_size);
1629  s->hd = NULL;
1630 
1631  /* if it fails, continue on old connection */
1632  if ((ret = http_open_cnx(h, &options)) < 0) {
1633  av_dict_free(&options);
1634  memcpy(s->buffer, old_buf, old_buf_size);
1635  s->buf_ptr = s->buffer;
1636  s->buf_end = s->buffer + old_buf_size;
1637  s->hd = old_hd;
1638  s->off = old_off;
1639  return ret;
1640  }
1641  av_dict_free(&options);
1642  ffurl_close(old_hd);
1643  return off;
1644 }
1645 
1646 static int64_t http_seek(URLContext *h, int64_t off, int whence)
1647 {
1648  return http_seek_internal(h, off, whence, 0);
1649 }
1650 
1652 {
1653  HTTPContext *s = h->priv_data;
1654  return ffurl_get_file_handle(s->hd);
1655 }
1656 
1658 {
1659  HTTPContext *s = h->priv_data;
1660  return ffurl_get_short_seek(s->hd);
1661 }
1662 
1663 #define HTTP_CLASS(flavor) \
1664 static const AVClass flavor ## _context_class = { \
1665  .class_name = # flavor, \
1666  .item_name = av_default_item_name, \
1667  .option = options, \
1668  .version = LIBAVUTIL_VERSION_INT, \
1669 }
1670 
1671 #if CONFIG_HTTP_PROTOCOL
1672 HTTP_CLASS(http);
1673 
1674 const URLProtocol ff_http_protocol = {
1675  .name = "http",
1676  .url_open2 = http_open,
1677  .url_accept = http_accept,
1678  .url_handshake = http_handshake,
1679  .url_read = http_read,
1680  .url_write = http_write,
1681  .url_seek = http_seek,
1682  .url_close = http_close,
1683  .url_get_file_handle = http_get_file_handle,
1684  .url_get_short_seek = http_get_short_seek,
1685  .url_shutdown = http_shutdown,
1686  .priv_data_size = sizeof(HTTPContext),
1687  .priv_data_class = &http_context_class,
1689  .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy"
1690 };
1691 #endif /* CONFIG_HTTP_PROTOCOL */
1692 
1693 #if CONFIG_HTTPS_PROTOCOL
1694 HTTP_CLASS(https);
1695 
1697  .name = "https",
1698  .url_open2 = http_open,
1699  .url_read = http_read,
1700  .url_write = http_write,
1701  .url_seek = http_seek,
1702  .url_close = http_close,
1703  .url_get_file_handle = http_get_file_handle,
1704  .url_get_short_seek = http_get_short_seek,
1705  .url_shutdown = http_shutdown,
1706  .priv_data_size = sizeof(HTTPContext),
1707  .priv_data_class = &https_context_class,
1709  .default_whitelist = "http,https,tls,rtp,tcp,udp,crypto,httpproxy"
1710 };
1711 #endif /* CONFIG_HTTPS_PROTOCOL */
1712 
1713 #if CONFIG_HTTPPROXY_PROTOCOL
1714 static int http_proxy_close(URLContext *h)
1715 {
1716  HTTPContext *s = h->priv_data;
1717  if (s->hd)
1718  ffurl_closep(&s->hd);
1719  return 0;
1720 }
1721 
1722 static int http_proxy_open(URLContext *h, const char *uri, int flags)
1723 {
1724  HTTPContext *s = h->priv_data;
1725  char hostname[1024], hoststr[1024];
1726  char auth[1024], pathbuf[1024], *path;
1727  char lower_url[100];
1728  int port, ret = 0, attempts = 0;
1729  HTTPAuthType cur_auth_type;
1730  char *authstr;
1731  int new_loc;
1732 
1733  if( s->seekable == 1 )
1734  h->is_streamed = 0;
1735  else
1736  h->is_streamed = 1;
1737 
1738  av_url_split(NULL, 0, auth, sizeof(auth), hostname, sizeof(hostname), &port,
1739  pathbuf, sizeof(pathbuf), uri);
1740  ff_url_join(hoststr, sizeof(hoststr), NULL, NULL, hostname, port, NULL);
1741  path = pathbuf;
1742  if (*path == '/')
1743  path++;
1744 
1745  ff_url_join(lower_url, sizeof(lower_url), "tcp", NULL, hostname, port,
1746  NULL);
1747 redo:
1748  ret = ffurl_open_whitelist(&s->hd, lower_url, AVIO_FLAG_READ_WRITE,
1749  &h->interrupt_callback, NULL,
1751  if (ret < 0)
1752  return ret;
1753 
1754  authstr = ff_http_auth_create_response(&s->proxy_auth_state, auth,
1755  path, "CONNECT");
1756  snprintf(s->buffer, sizeof(s->buffer),
1757  "CONNECT %s HTTP/1.1\r\n"
1758  "Host: %s\r\n"
1759  "Connection: close\r\n"
1760  "%s%s"
1761  "\r\n",
1762  path,
1763  hoststr,
1764  authstr ? "Proxy-" : "", authstr ? authstr : "");
1765  av_freep(&authstr);
1766 
1767  if ((ret = ffurl_write(s->hd, s->buffer, strlen(s->buffer))) < 0)
1768  goto fail;
1769 
1770  s->buf_ptr = s->buffer;
1771  s->buf_end = s->buffer;
1772  s->line_count = 0;
1773  s->filesize = UINT64_MAX;
1774  cur_auth_type = s->proxy_auth_state.auth_type;
1775 
1776  /* Note: This uses buffering, potentially reading more than the
1777  * HTTP header. If tunneling a protocol where the server starts
1778  * the conversation, we might buffer part of that here, too.
1779  * Reading that requires using the proper ffurl_read() function
1780  * on this URLContext, not using the fd directly (as the tls
1781  * protocol does). This shouldn't be an issue for tls though,
1782  * since the client starts the conversation there, so there
1783  * is no extra data that we might buffer up here.
1784  */
1785  ret = http_read_header(h, &new_loc);
1786  if (ret < 0)
1787  goto fail;
1788 
1789  attempts++;
1790  if (s->http_code == 407 &&
1791  (cur_auth_type == HTTP_AUTH_NONE || s->proxy_auth_state.stale) &&
1792  s->proxy_auth_state.auth_type != HTTP_AUTH_NONE && attempts < 2) {
1793  ffurl_closep(&s->hd);
1794  goto redo;
1795  }
1796 
1797  if (s->http_code < 400)
1798  return 0;
1799  ret = ff_http_averror(s->http_code, AVERROR(EIO));
1800 
1801 fail:
1802  http_proxy_close(h);
1803  return ret;
1804 }
1805 
1806 static int http_proxy_write(URLContext *h, const uint8_t *buf, int size)
1807 {
1808  HTTPContext *s = h->priv_data;
1809  return ffurl_write(s->hd, buf, size);
1810 }
1811 
1813  .name = "httpproxy",
1814  .url_open = http_proxy_open,
1815  .url_read = http_buf_read,
1816  .url_write = http_proxy_write,
1817  .url_close = http_proxy_close,
1818  .url_get_file_handle = http_get_file_handle,
1819  .priv_data_size = sizeof(HTTPContext),
1820  .flags = URL_PROTOCOL_FLAG_NETWORK,
1821 };
1822 #endif /* CONFIG_HTTPPROXY_PROTOCOL */
static int http_get_line(HTTPContext *s, char *line, int line_size)
Definition: http.c:570
time_t av_timegm(struct tm *tm)
Convert the decomposed UTC time in tm to a time_t value.
Definition: parseutils.c:568
void av_url_split(char *proto, int proto_size, char *authorization, int authorization_size, char *hostname, int hostname_size, int *port_ptr, char *path, int path_size, const char *url)
Split a URL string into components.
Definition: utils.c:4628
static void parse_content_range(URLContext *h, const char *p)
Definition: http.c:623
AVDictionary * metadata
Definition: http.c:107
#define NULL
Definition: coverity.c:32
static int http_connect(URLContext *h, const char *path, const char *local_path, const char *hoststr, const char *auth, const char *proxyauth, int *new_location)
Definition: http.c:1109
const char const char void * val
Definition: avisynth_c.h:771
void ff_make_absolute_url(char *buf, int size, const char *base, const char *rel)
Convert a relative url into an absolute url, given a base url.
Definition: url.c:80
const char * s
Definition: avisynth_c.h:768
#define AVERROR_INVALIDDATA
Invalid data found when processing input.
Definition: error.h:59
int ffurl_open_whitelist(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb, AVDictionary **options, const char *whitelist, const char *blacklist, URLContext *parent)
Create an URLContext for accessing to the resource indicated by url, and open it. ...
Definition: avio.c:307
#define URL_PROTOCOL_FLAG_NETWORK
Definition: url.h:34
uint8_t * post_data
Definition: http.c:93
int reconnect_delay
Definition: http.c:119
AVOption.
Definition: opt.h:246
ptrdiff_t const GLvoid * data
Definition: opengl_enc.c:101
#define AV_OPT_FLAG_EXPORT
The option is intended for exporting values to the caller.
Definition: opt.h:284
HTTPAuthType
Authentication types, ordered from weakest to strongest.
Definition: httpauth.h:28
#define BUFFER_SIZE
Definition: http.c:48
#define AV_LOG_WARNING
Something somehow does not look correct.
Definition: log.h:182
static int http_close(URLContext *h)
Definition: http.c:1575
else temp
Definition: vf_mcdeint.c:256
int ffurl_write(URLContext *h, const unsigned char *buf, int size)
Write size bytes from buf to the resource accessed by h.
Definition: avio.c:421
char * av_stristr(const char *s1, const char *s2)
Locate the first case-independent occurrence in the string haystack of the string needle...
Definition: avstring.c:56
int is_streamed
true if streamed (no seek possible), default = false
Definition: url.h:45
AVIOInterruptCB interrupt_callback
Definition: url.h:47
HTTPAuthState proxy_auth_state
Definition: http.c:73
Definition: http.c:58
#define AVIO_FLAG_READ
read-only
Definition: avio.h:654
char * icy_metadata_headers
Definition: http.c:105
static av_const int av_isspace(int c)
Locale-independent conversion of ASCII isspace.
Definition: avstring.h:222
const URLProtocol ff_http_protocol
#define AVIO_FLAG_WRITE
write-only
Definition: avio.h:655
int av_strncasecmp(const char *a, const char *b, size_t n)
Locale-independent case-insensitive compare.
Definition: avstring.c:223
uint64_t icy_metaint
Definition: http.c:104
#define AVERROR_HTTP_NOT_FOUND
Definition: error.h:79
int av_dict_copy(AVDictionary **dst, const AVDictionary *src, int flags)
Copy entries from one AVDictionary struct into another.
Definition: dict.c:217
int flags
Definition: url.h:43
static int http_listen(URLContext *h, const char *uri, int flags, AVDictionary **options)
Definition: http.c:461
char * content_type
Definition: http.c:81
const char * key
uint64_t filesize
Definition: http.c:70
int version
Definition: avisynth_c.h:766
int av_usleep(unsigned usec)
Sleep for a period of time.
Definition: time.c:84
static int http_getc(HTTPContext *s)
Definition: http.c:553
HTTP Authentication state structure.
Definition: httpauth.h:55
#define src
Definition: vp8dsp.c:254
int auth_type
The currently chosen auth type.
Definition: httpauth.h:59
#define WHITESPACES
Definition: http.c:53
int is_connected_server
Definition: http.c:126
#define AV_DICT_DONT_STRDUP_KEY
Take ownership of a key that's been allocated with av_malloc() or another memory allocation function...
Definition: dict.h:73
#define HTTP_SINGLE
Definition: http.c:50
#define MAX_URL_SIZE
Definition: internal.h:30
static int parse_cookie(HTTPContext *s, const char *p, AVDictionary **cookies)
Definition: http.c:749
#define av_assert0(cond)
assert() equivalent, that is always enabled.
Definition: avassert.h:37
int end_chunked_post
Definition: http.c:88
int av_stristart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str independent of case.
Definition: avstring.c:45
static int http_get_file_handle(URLContext *h)
Definition: http.c:1651
static int http_buf_read(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1286
uint8_t
#define av_malloc(s)
int post_datalen
Definition: http.c:94
AVOptions.
int ff_http_averror(int status_code, int default_averror)
Definition: http.c:328
miscellaneous OS support macros and functions.
#define AV_LOG_TRACE
Extremely verbose debugging, useful for libav* development.
Definition: log.h:202
static int http_read_header(URLContext *h, int *new_location)
Definition: http.c:1077
static av_cold int end(AVCodecContext *avctx)
Definition: avrndec.c:90
#define HTTP_HEADERS_SIZE
Definition: http.h:27
int is_akamai
Definition: http.c:95
#define SPACE_CHARS
static int http_open_cnx(URLContext *h, AVDictionary **options)
Definition: http.c:248
char * av_small_strptime(const char *p, const char *fmt, struct tm *dt)
Simplified version of strptime.
Definition: parseutils.c:489
AVDictionaryEntry * av_dict_get(const AVDictionary *m, const char *key, const AVDictionaryEntry *prev, int flags)
Get a dictionary entry with matching key.
Definition: dict.c:40
static void inflate(uint8_t *dst, const uint8_t *p1, int width, int threshold, const uint8_t *coordinates[], int coord)
Definition: vf_neighbor.c:129
static int flags
Definition: log.c:57
uint32_t tag
Definition: movenc.c:1448
#define DEFAULT_USER_AGENT
Definition: http.c:132
#define AVERROR_EOF
End of file.
Definition: error.h:55
void ff_http_init_auth_state(URLContext *dest, const URLContext *src)
Initialize the authentication state based on another HTTP URLContext.
Definition: http.c:176
uint64_t icy_data_read
Definition: http.c:102
HTTP 1.0 Basic auth from RFC 1945 (also in RFC 2617)
Definition: httpauth.h:30
ptrdiff_t size
Definition: opengl_enc.c:101
static const uint8_t header[24]
Definition: sdr2.c:67
static int http_open_cnx_internal(URLContext *h, AVDictionary **options)
Definition: http.c:186
int line_count
Definition: http.c:65
#define av_log(a,...)
unsigned char * buf_end
Definition: http.c:64
static void update_metadata(HTTPContext *s, char *data)
Definition: http.c:1451
static void body(uint32_t ABCD[4], const uint8_t *src, int nblocks)
Definition: md5.c:101
#define U(x)
Definition: vp56_arith.h:37
int is_multi_client
Definition: http.c:124
int chunked_post
Definition: http.c:86
static int64_t http_seek_internal(URLContext *h, int64_t off, int whence, int force_reconnect)
Definition: http.c:1595
int ffurl_alloc(URLContext **puc, const char *filename, int flags, const AVIOInterruptCB *int_cb)
Create a URLContext for accessing to the resource indicated by url, but do not initiate the connectio...
Definition: avio.c:290
#define AV_LOG_ERROR
Something went wrong and cannot losslessly be recovered.
Definition: log.h:176
int reconnect_delay_max
Definition: http.c:120
#define E
Definition: http.c:131
const char * protocol_whitelist
Definition: url.h:49
#define AVERROR(e)
Definition: error.h:43
static int http_write(URLContext *h, const uint8_t *buf, int size)
Definition: http.c:1532
static const AVOption options[]
Definition: http.c:134
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
void av_dict_free(AVDictionary **pm)
Free all the memory allocated for an AVDictionary struct and all keys and values. ...
Definition: dict.c:203
static int http_handshake(URLContext *c)
Definition: http.c:425
Definition: graph2dot.c:48
uint64_t off
Definition: http.c:70
simple assert() macros that are a bit more flexible than ISO C assert().
#define OFFSET(x)
Definition: http.c:129
size_t av_strlcpy(char *dst, const char *src, size_t size)
Copy the string src to dst, but no more than size - 1 bytes, and null-terminate dst.
Definition: avstring.c:83
#define fail()
Definition: checkasm.h:113
uint64_t chunksize
Definition: http.c:68
AVDictionary * chained_options
Definition: http.c:113
#define AVERROR_HTTP_SERVER_ERROR
Definition: error.h:81
char * av_asprintf(const char *fmt,...)
Definition: avstring.c:113
static int store_icy(URLContext *h, int size)
Definition: http.c:1477
char * headers
Definition: http.c:75
char * user_agent
Definition: http.c:77
#define AVERROR_HTTP_UNAUTHORIZED
Definition: error.h:77
char * icy_metadata_packet
Definition: http.c:106
char method[16]
Definition: ffserver.c:165
int ffurl_get_short_seek(URLContext *h)
Return the current short seek threshold value for this URL.
Definition: avio.c:648
#define FFMIN(a, b)
Definition: common.h:96
static int http_get_short_seek(URLContext *h)
Definition: http.c:1657
const URLProtocol ff_httpproxy_protocol
int av_strcasecmp(const char *a, const char *b)
Locale-independent case-insensitive compare.
Definition: avstring.c:213
int chunkend
Definition: http.c:69
GLsizei GLboolean const GLfloat * value
Definition: opengl_enc.c:109
int send_expect_100
Definition: http.c:114
#define av_err2str(errnum)
Convenience macro, the return value should be used only directly in function arguments but never stan...
Definition: error.h:119
int willclose
Definition: http.c:84
int is_mediagateway
Definition: http.c:96
int ffurl_handshake(URLContext *c)
Perform one step of the protocol handshake to accept a new client.
Definition: avio.c:234
int reconnect
Definition: http.c:116
int ff_http_match_no_proxy(const char *no_proxy, const char *hostname)
Definition: network.c:311
int ffurl_get_file_handle(URLContext *h)
Return the file descriptor associated with this URL.
Definition: avio.c:626
int ffurl_accept(URLContext *s, URLContext **c)
Accept an URLContext c on an URLContext s.
Definition: avio.c:226
AVDictionary * cookie_dict
Definition: http.c:99
static void error(const char *err)
int stale
Auth ok, but needs to be resent with a new nonce.
Definition: httpauth.h:71
offset must point to a pointer immediately followed by an int for the length
Definition: opt.h:229
int ffurl_closep(URLContext **hh)
Close the resource accessed by the URLContext h, and free the memory used by it.
Definition: avio.c:444
int64_t av_gettime(void)
Get the current time in microseconds.
Definition: time.c:39
int ff_url_join(char *str, int size, const char *proto, const char *authorization, const char *hostname, int port, const char *fmt,...)
Definition: url.c:36
int reconnect_streamed
Definition: http.c:118
static int http_read(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1515
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
int av_reallocp(void *ptr, size_t size)
Allocate, reallocate, or free a block of memory through a pointer to a pointer.
Definition: mem.c:163
char * av_strdup(const char *s)
Duplicate a string.
Definition: mem.c:251
const char * protocol_blacklist
Definition: url.h:50
char * http_proxy
Definition: http.c:74
HandshakeState handshake_step
Definition: http.c:125
int seekable
Control seekability, 0 = disable, 1 = enable, -1 = probe.
Definition: http.c:85
#define MAX_EXPIRY
Definition: http.c:52
void * buf
Definition: avisynth_c.h:690
Definition: url.h:38
#define AVIO_FLAG_READ_WRITE
read-write pseudo flag
Definition: avio.h:656
int av_dict_set(AVDictionary **pm, const char *key, const char *value, int flags)
Set the given entry in *pm, overwriting an existing entry.
Definition: dict.c:70
Describe the class of an AVClass context structure.
Definition: log.h:67
void * priv_data
Definition: url.h:41
#define AVERROR_HTTP_OTHER_4XX
Definition: error.h:80
size_t av_strlcatf(char *dst, size_t size, const char *fmt,...)
Definition: avstring.c:101
#define snprintf
Definition: snprintf.h:34
int icy
Definition: http.c:100
misc parsing utilities
char * ff_http_auth_create_response(HTTPAuthState *state, const char *auth, const char *path, const char *method)
Definition: httpauth.c:245
const char * name
Definition: url.h:55
URLContext * hd
Definition: http.c:63
static int has_header(const char *str, const char *header)
Definition: http.c:1069
char * mime_type
Definition: http.c:76
#define SIZE_SPECIFIER
Definition: internal.h:262
#define AVERROR_HTTP_FORBIDDEN
Definition: error.h:78
int ffurl_close(URLContext *h)
Definition: avio.c:467
static int process_line(URLContext *h, char *line, int line_count, int *new_location)
Definition: http.c:833
int ff_http_do_new_request(URLContext *h, const char *uri)
Send a new HTTP request, reusing the old connection.
Definition: http.c:304
char * av_strtok(char *s, const char *delim, char **saveptr)
Split the string into several tokens which can be accessed by successive calls to av_strtok()...
Definition: avstring.c:184
int av_strstart(const char *str, const char *pfx, const char **ptr)
Return non-zero if pfx is a prefix of str.
Definition: avstring.c:34
Main libavformat public API header.
char * cookies
holds newline ( ) delimited Set-Cookie header field values (without the "Set-Cookie: " field name) ...
Definition: http.c:97
#define MAX_REDIRECTS
Definition: http.c:49
static int parse_content_encoding(URLContext *h, const char *p)
Definition: http.c:638
int reconnect_at_eof
Definition: http.c:117
static double c[64]
int av_dict_set_int(AVDictionary **pm, const char *key, int64_t value, int flags)
Convenience wrapper for av_dict_set that converts the value to a string and stores it...
Definition: dict.c:147
HandshakeState
Definition: http.c:54
static int get_cookies(HTTPContext *s, char **cookies, const char *path, const char *domain)
Create a string containing cookie values for use as a HTTP cookie header field value for a particular...
Definition: http.c:978
int http_code
Definition: http.c:66
char * filename
specified URL
Definition: url.h:42
int listen
Definition: http.c:121
static int http_open(URLContext *h, const char *uri, int flags, AVDictionary **options)
Definition: http.c:492
#define AVSEEK_SIZE
ORing this as the "whence" parameter to a seek function causes it to return the filesize without seek...
Definition: avio.h:531
char * key
Definition: dict.h:86
void ff_http_auth_handle_header(HTTPAuthState *state, const char *key, const char *value)
Definition: httpauth.c:90
int multiple_requests
Definition: http.c:92
HTTPAuthState auth_state
Definition: http.c:72
#define av_free(p)
static int cookie_string(AVDictionary *dict, char **cookies)
Definition: http.c:810
char * value
Definition: dict.h:87
const URLProtocol ff_https_protocol
int len
static int parse_location(HTTPContext *s, const char *p)
Definition: http.c:609
uint8_t * buffer
Definition: ffserver.c:169
char * resource
Definition: http.c:122
char * location
Definition: http.c:71
static int http_shutdown(URLContext *h, int flags)
Definition: http.c:1558
static int http_write_reply(URLContext *h, int status_code)
Definition: http.c:345
#define AV_OPT_FLAG_READONLY
The option may not be set through the AVOptions API, only read.
Definition: opt.h:289
int end_header
Definition: http.c:90
unsigned char * buf_ptr
Definition: http.c:64
#define D
Definition: http.c:130
#define AVERROR_HTTP_BAD_REQUEST
Definition: error.h:76
char * method
Definition: http.c:115
static int parse_icy(HTTPContext *s, const char *tag, const char *p)
Definition: http.c:672
uint64_t end_off
Definition: http.c:70
static int parse_set_cookie_expiry_time(const char *exp_str, struct tm *buf)
Definition: http.c:694
static int http_read_stream(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1394
#define av_freep(p)
static int http_read_stream_all(URLContext *h, uint8_t *buf, int size)
Definition: http.c:1439
#define AV_DICT_IGNORE_SUFFIX
Return first entry in a dictionary whose first part corresponds to the search key, ignoring the suffix of the found key string.
Definition: dict.h:70
unbuffered private I/O API
static void handle_http_errors(URLContext *h, int error)
Definition: http.c:419
static int parse_set_cookie(const char *set_cookie, AVDictionary **dict)
Definition: http.c:719
static int64_t http_seek(URLContext *h, int64_t off, int whence)
Definition: http.c:1646
int reply_code
Definition: http.c:123
int av_opt_set(void *obj, const char *name, const char *val, int search_flags)
Definition: opt.c:449
int ffurl_read(URLContext *h, unsigned char *buf, int size)
Read up to size bytes from the resource accessed by h, and store the read bytes in buf...
Definition: avio.c:407
char * av_strndup(const char *s, size_t len)
Duplicate a substring of a string.
Definition: mem.c:263
static int http_accept(URLContext *s, URLContext **c)
Definition: http.c:533
GLuint buffer
Definition: opengl_enc.c:102
#define HTTP_CLASS(flavor)
Definition: http.c:1663
No authentication specified.
Definition: httpauth.h:29
uint8_t pi<< 24) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_U8,(uint64_t)((*(constuint8_t *) pi-0x80U))<< 56) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0f/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_U8,(*(constuint8_t *) pi-0x80)*(1.0/(1<< 7))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S16,(*(constint16_t *) pi >>8)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S16,(uint64_t)(*(constint16_t *) pi)<< 48) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0f/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S16,*(constint16_t *) pi *(1.0/(1<< 15))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S32,(*(constint32_t *) pi >>24)+0x80) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_S32,(uint64_t)(*(constint32_t *) pi)<< 32) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0f/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S32,*(constint32_t *) pi *(1.0/(1U<< 31))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_S64,(*(constint64_t *) pi >>56)+0x80) CONV_FUNC(AV_SAMPLE_FMT_FLT, float, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0f/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_DBL, double, AV_SAMPLE_FMT_S64,*(constint64_t *) pi *(1.0/(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_FLT, av_clip_uint8(lrintf(*(constfloat *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_FLT, av_clip_int16(lrintf(*(constfloat *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_FLT, av_clipl_int32(llrintf(*(constfloat *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_FLT, llrintf(*(constfloat *) pi *(INT64_C(1)<< 63))) CONV_FUNC(AV_SAMPLE_FMT_U8, uint8_t, AV_SAMPLE_FMT_DBL, av_clip_uint8(lrint(*(constdouble *) pi *(1<< 7))+0x80)) CONV_FUNC(AV_SAMPLE_FMT_S16, int16_t, AV_SAMPLE_FMT_DBL, av_clip_int16(lrint(*(constdouble *) pi *(1<< 15)))) CONV_FUNC(AV_SAMPLE_FMT_S32, int32_t, AV_SAMPLE_FMT_DBL, av_clipl_int32(llrint(*(constdouble *) pi *(1U<< 31)))) CONV_FUNC(AV_SAMPLE_FMT_S64, int64_t, AV_SAMPLE_FMT_DBL, llrint(*(constdouble *) pi *(INT64_C(1)<< 63)))#defineFMT_PAIR_FUNC(out, in) staticconv_func_type *constfmt_pair_to_conv_functions[AV_SAMPLE_FMT_NB *AV_SAMPLE_FMT_NB]={FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_U8), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S16), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S32), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_FLT), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_DBL), FMT_PAIR_FUNC(AV_SAMPLE_FMT_U8, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S32, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_FLT, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_DBL, AV_SAMPLE_FMT_S64), FMT_PAIR_FUNC(AV_SAMPLE_FMT_S64, AV_SAMPLE_FMT_S64),};staticvoidcpy1(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, len);}staticvoidcpy2(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 2 *len);}staticvoidcpy4(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 4 *len);}staticvoidcpy8(uint8_t **dst, constuint8_t **src, intlen){memcpy(*dst,*src, 8 *len);}AudioConvert *swri_audio_convert_alloc(enumAVSampleFormatout_fmt, enumAVSampleFormatin_fmt, intchannels, constint *ch_map, intflags){AudioConvert *ctx;conv_func_type *f=fmt_pair_to_conv_functions[av_get_packed_sample_fmt(out_fmt)+AV_SAMPLE_FMT_NB *av_get_packed_sample_fmt(in_fmt)];if(!f) returnNULL;ctx=av_mallocz(sizeof(*ctx));if(!ctx) returnNULL;if(channels==1){in_fmt=av_get_planar_sample_fmt(in_fmt);out_fmt=av_get_planar_sample_fmt(out_fmt);}ctx->channels=channels;ctx->conv_f=f;ctx->ch_map=ch_map;if(in_fmt==AV_SAMPLE_FMT_U8||in_fmt==AV_SAMPLE_FMT_U8P) memset(ctx->silence, 0x80, sizeof(ctx->silence));if(out_fmt==in_fmt &&!ch_map){switch(av_get_bytes_per_sample(in_fmt)){case1:ctx->simd_f=cpy1;break;case2:ctx->simd_f=cpy2;break;case4:ctx->simd_f=cpy4;break;case8:ctx->simd_f=cpy8;break;}}if(HAVE_X86ASM &&1) swri_audio_convert_init_x86(ctx, out_fmt, in_fmt, channels);if(ARCH_ARM) swri_audio_convert_init_arm(ctx, out_fmt, in_fmt, channels);if(ARCH_AARCH64) swri_audio_convert_init_aarch64(ctx, out_fmt, in_fmt, channels);returnctx;}voidswri_audio_convert_free(AudioConvert **ctx){av_freep(ctx);}intswri_audio_convert(AudioConvert *ctx, AudioData *out, AudioData *in, intlen){intch;intoff=0;constintos=(out->planar?1:out->ch_count)*out->bps;unsignedmisaligned=0;av_assert0(ctx->channels==out->ch_count);if(ctx->in_simd_align_mask){intplanes=in->planar?in->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) in->ch[ch];misaligned|=m &ctx->in_simd_align_mask;}if(ctx->out_simd_align_mask){intplanes=out->planar?out->ch_count:1;unsignedm=0;for(ch=0;ch< planes;ch++) m|=(intptr_t) out->ch[ch];misaligned|=m &ctx->out_simd_align_mask;}if(ctx->simd_f &&!ctx->ch_map &&!misaligned){off=len &~15;av_assert1(off >=0);av_assert1(off<=len);av_assert2(ctx->channels==SWR_CH_MAX||!in->ch[ctx->channels]);if(off >0){if(out->planar==in->planar){intplanes=out->planar?out->ch_count:1;for(ch=0;ch< planes;ch++){ctx->simd_f(out-> ch ch
Definition: audioconvert.c:56
static int check_http_code(URLContext *h, int http_code, const char *end)
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const char * name
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static uint8_t tmp[11]
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