* unbuffered I/O
* Copyright (c) 2001 Fabrice Bellard
*
- * This file is part of Libav.
+ * This file is part of FFmpeg.
*
- * Libav is free software; you can redistribute it and/or
+ * FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
- * Libav is distributed in the hope that it will be useful,
+ * FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
- * License along with Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <unistd.h>
#include "libavutil/avstring.h"
+#include "libavutil/dict.h"
#include "libavutil/opt.h"
#include "os_support.h"
#include "avformat.h"
#endif
#include "url.h"
+static URLProtocol *first_protocol = NULL;
+
+URLProtocol *ffurl_protocol_next(URLProtocol *prev)
+{
+ return prev ? prev->next : first_protocol;
+}
+
/** @name Logging context. */
/*@{*/
static const char *urlcontext_to_name(void *ptr)
if(h->prot) return h->prot->name;
else return "NULL";
}
+
+static void *urlcontext_child_next(void *obj, void *prev)
+{
+ URLContext *h = obj;
+ if (!prev && h->priv_data && h->prot->priv_data_class)
+ return h->priv_data;
+ return NULL;
+}
+
+static const AVClass *urlcontext_child_class_next(const AVClass *prev)
+{
+ URLProtocol *p = NULL;
+
+ /* find the protocol that corresponds to prev */
+ while (prev && (p = ffurl_protocol_next(p)))
+ if (p->priv_data_class == prev)
+ break;
+
+ /* find next protocol with priv options */
+ while (p = ffurl_protocol_next(p))
+ if (p->priv_data_class)
+ return p->priv_data_class;
+ return NULL;
+
+}
+
static const AVOption options[] = {{NULL}};
-static const AVClass urlcontext_class = {
+const AVClass ffurl_context_class = {
.class_name = "URLContext",
.item_name = urlcontext_to_name,
.option = options,
.version = LIBAVUTIL_VERSION_INT,
+ .child_next = urlcontext_child_next,
+ .child_class_next = urlcontext_child_class_next,
};
/*@}*/
-static int default_interrupt_cb(void);
-URLProtocol *first_protocol = NULL;
+#if FF_API_OLD_INTERRUPT_CB
+static int default_interrupt_cb(void);
int (*url_interrupt_cb)(void) = default_interrupt_cb;
+#endif
-#if FF_API_OLD_AVIO
URLProtocol *av_protocol_next(URLProtocol *p)
{
- if(p) return p->next;
- else return first_protocol;
+ return ffurl_protocol_next(p);
}
-#endif
const char *avio_enum_protocols(void **opaque, int output)
{
URLProtocol **p = opaque;
- *p = *p ? (*p)->next : first_protocol;
+ *p = ffurl_protocol_next(*p);
if (!*p) return NULL;
if ((output && (*p)->url_write) || (!output && (*p)->url_read))
return (*p)->name;
}
static int url_alloc_for_protocol (URLContext **puc, struct URLProtocol *up,
- const char *filename, int flags)
+ const char *filename, int flags,
+ const AVIOInterruptCB *int_cb)
{
URLContext *uc;
int err;
#if CONFIG_NETWORK
- if (!ff_network_init())
+ if (up->flags & URL_PROTOCOL_FLAG_NETWORK && !ff_network_init())
return AVERROR(EIO);
#endif
uc = av_mallocz(sizeof(URLContext) + strlen(filename) + 1);
err = AVERROR(ENOMEM);
goto fail;
}
- uc->av_class = &urlcontext_class;
+ uc->av_class = &ffurl_context_class;
uc->filename = (char *) &uc[1];
strcpy(uc->filename, filename);
uc->prot = up;
if (up->priv_data_size) {
uc->priv_data = av_mallocz(up->priv_data_size);
if (up->priv_data_class) {
+ int proto_len= strlen(up->name);
+ char *start = strchr(uc->filename, ',');
*(const AVClass**)uc->priv_data = up->priv_data_class;
av_opt_set_defaults(uc->priv_data);
+ if(!strncmp(up->name, uc->filename, proto_len) && uc->filename + proto_len == start){
+ int ret= 0;
+ char *p= start;
+ char sep= *++p;
+ char *key, *val;
+ p++;
+ while(ret >= 0 && (key= strchr(p, sep)) && p<key && (val = strchr(key+1, sep))){
+ *val= *key= 0;
+ ret= av_opt_set(uc->priv_data, p, key+1, 0);
+ if (ret == AVERROR_OPTION_NOT_FOUND)
+ av_log(uc, AV_LOG_ERROR, "Key '%s' not found.\n", p);
+ *val= *key= sep;
+ p= val+1;
+ }
+ if(ret<0 || p!=key){
+ av_log(uc, AV_LOG_ERROR, "Error parsing options string %s\n", start);
+ av_freep(&uc->priv_data);
+ av_freep(&uc);
+ goto fail;
+ }
+ memmove(start, key+1, strlen(key));
+ }
}
}
+ if (int_cb)
+ uc->interrupt_callback = *int_cb;
*puc = uc;
return 0;
fail:
*puc = NULL;
#if CONFIG_NETWORK
- ff_network_close();
+ if (up->flags & URL_PROTOCOL_FLAG_NETWORK)
+ ff_network_close();
#endif
return err;
}
-int ffurl_connect(URLContext* uc)
+int ffurl_connect(URLContext* uc, AVDictionary **options)
{
- int err = uc->prot->url_open(uc, uc->filename, uc->flags);
+ int err =
+#if !FF_API_OLD_AVIO
+ uc->prot->url_open2 ? uc->prot->url_open2(uc, uc->filename, uc->flags, options) :
+#endif
+ uc->prot->url_open(uc, uc->filename, uc->flags);
if (err)
return err;
uc->is_connected = 1;
{
int ret;
- ret = url_alloc_for_protocol(puc, up, filename, flags);
+ ret = url_alloc_for_protocol(puc, up, filename, flags, NULL);
if (ret)
goto fail;
- ret = ffurl_connect(*puc);
+ ret = ffurl_connect(*puc, NULL);
if (!ret)
return 0;
fail:
}
int url_alloc(URLContext **puc, const char *filename, int flags)
{
- return ffurl_alloc(puc, filename, flags);
+ return ffurl_alloc(puc, filename, flags, NULL);
}
int url_connect(URLContext* uc)
{
- return ffurl_connect(uc);
+ return ffurl_connect(uc, NULL);
}
int url_open(URLContext **puc, const char *filename, int flags)
{
- return ffurl_open(puc, filename, flags);
+ return ffurl_open(puc, filename, flags, NULL, NULL);
}
int url_read(URLContext *h, unsigned char *buf, int size)
{
"ABCDEFGHIJKLMNOPQRSTUVWXYZ" \
"0123456789+-."
-int ffurl_alloc(URLContext **puc, const char *filename, int flags)
+int ffurl_alloc(URLContext **puc, const char *filename, int flags,
+ const AVIOInterruptCB *int_cb)
{
- URLProtocol *up;
+ URLProtocol *up = NULL;
char proto_str[128], proto_nested[128], *ptr;
size_t proto_len = strspn(filename, URL_SCHEME_CHARS);
- if (filename[proto_len] != ':' || is_dos_path(filename))
+ if (!first_protocol) {
+ av_log(NULL, AV_LOG_WARNING, "No URL Protocols are registered. "
+ "Missing call to av_register_all()?\n");
+ }
+
+ if (filename[proto_len] != ':' && filename[proto_len] != ',' || is_dos_path(filename))
strcpy(proto_str, "file");
else
av_strlcpy(proto_str, filename, FFMIN(proto_len+1, sizeof(proto_str)));
+ if ((ptr = strchr(proto_str, ',')))
+ *ptr = '\0';
av_strlcpy(proto_nested, proto_str, sizeof(proto_nested));
if ((ptr = strchr(proto_nested, '+')))
*ptr = '\0';
- up = first_protocol;
- while (up != NULL) {
+ while (up = ffurl_protocol_next(up)) {
if (!strcmp(proto_str, up->name))
- return url_alloc_for_protocol (puc, up, filename, flags);
+ return url_alloc_for_protocol (puc, up, filename, flags, int_cb);
if (up->flags & URL_PROTOCOL_FLAG_NESTED_SCHEME &&
!strcmp(proto_nested, up->name))
- return url_alloc_for_protocol (puc, up, filename, flags);
- up = up->next;
+ return url_alloc_for_protocol (puc, up, filename, flags, int_cb);
}
*puc = NULL;
return AVERROR(ENOENT);
}
-int ffurl_open(URLContext **puc, const char *filename, int flags)
+int ffurl_open(URLContext **puc, const char *filename, int flags,
+ const AVIOInterruptCB *int_cb, AVDictionary **options)
{
- int ret = ffurl_alloc(puc, filename, flags);
+ int ret = ffurl_alloc(puc, filename, flags, int_cb);
if (ret)
return ret;
- ret = ffurl_connect(*puc);
+ if (options && (*puc)->prot->priv_data_class &&
+ (ret = av_opt_set_dict((*puc)->priv_data, options)) < 0)
+ goto fail;
+ ret = ffurl_connect(*puc, options);
if (!ret)
return 0;
+fail:
ffurl_close(*puc);
*puc = NULL;
return ret;
if (ret)
fast_retries = FFMAX(fast_retries, 2);
len += ret;
- if (ff_check_interrupt(&h->interrupt_callback))
+ if (len < size && ff_check_interrupt(&h->interrupt_callback))
return AVERROR_EXIT;
}
return len;
if (h->max_packet_size && size > h->max_packet_size)
return AVERROR(EIO);
- return retry_transfer_wrapper(h, buf, size, size, h->prot->url_write);
+ return retry_transfer_wrapper(h, buf, size, size, (void*)h->prot->url_write);
}
int64_t ffurl_seek(URLContext *h, int64_t pos, int whence)
if (h->is_connected && h->prot->url_close)
ret = h->prot->url_close(h);
#if CONFIG_NETWORK
- ff_network_close();
+ if (h->prot->flags & URL_PROTOCOL_FLAG_NETWORK)
+ ff_network_close();
#endif
if (h->prot->priv_data_size) {
if (h->prot->priv_data_class)
int url_exist(const char *filename)
{
URLContext *h;
- if (ffurl_open(&h, filename, AVIO_FLAG_READ) < 0)
+ if (ffurl_open(&h, filename, AVIO_FLAG_READ, NULL, NULL) < 0)
return 0;
ffurl_close(h);
return 1;
int avio_check(const char *url, int flags)
{
URLContext *h;
- int ret = ffurl_alloc(&h, url, flags);
+ int ret = ffurl_alloc(&h, url, flags, NULL);
if (ret)
return ret;
if (h->prot->url_check) {
ret = h->prot->url_check(h, flags);
} else {
- ret = ffurl_connect(h);
+ ret = ffurl_connect(h, NULL);
if (ret >= 0)
ret = flags;
}
return h->prot->url_get_file_handle(h);
}
+#if FF_API_OLD_INTERRUPT_CB
static int default_interrupt_cb(void)
{
return 0;
interrupt_cb = default_interrupt_cb;
url_interrupt_cb = interrupt_cb;
}
+#endif
int ff_check_interrupt(AVIOInterruptCB *cb)
{
int ret;
if (cb && cb->callback && (ret = cb->callback(cb->opaque)))
return ret;
+#if FF_API_OLD_INTERRUPT_CB
return url_interrupt_cb();
+#else
+ return 0;
+#endif
}
#if FF_API_OLD_AVIO
projects / ffmpeg / blobdiff