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403 results
Show changes
Commits on Source (2)
......@@ -5,6 +5,9 @@ AM_CPPFLAGS += -I$(srcdir)/access
### Files ###
libdata_plugin_la_SOURCES = access/data.c
access_LTLIBRARIES += libdata_plugin.la
libdcp_plugin_la_SOURCES = access/dcp/dcpparser.h access/dcp/dcp.cpp access/dcp/dcpparser.cpp access/dcp/dcpdecrypt.cpp
if HAVE_ASDCP
libdcp_plugin_la_CPPFLAGS = $(AM_CPPFLAGS) $(ASDCP_CFLAGS)
......
/*****************************************************************************
* data.c: data URL scheme
*****************************************************************************
* Copyright (C) 2021 Rémi Denis-Courmont
*
* This program 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.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
#include <vlc_access.h>
#include <vlc_strings.h>
#include <vlc_url.h>
struct access_data {
size_t type_length;
size_t length;
size_t offset;
char *data;
};
static ssize_t Read(stream_t *access, void *buf, size_t len)
{
struct access_data *sys = access->p_sys;
size_t avail = sys->length - sys->offset;
assert(sys->offset <= sys->length);
if (len > avail)
len = avail;
memcpy(buf, sys->data + sys->offset, len);
sys->offset += len;
return len;
}
static int Seek(stream_t *access, uint64_t position)
{
struct access_data *sys = access->p_sys;
sys->offset = (position <= sys->length) ? position : sys->length;
return VLC_SUCCESS;
}
static int Control(stream_t *access, int query, va_list args)
{
struct access_data *sys = access->p_sys;
switch (query)
{
case STREAM_CAN_SEEK:
case STREAM_CAN_FASTSEEK:
case STREAM_CAN_PAUSE:
case STREAM_CAN_CONTROL_PACE:
*va_arg(args, bool *) = true;
return VLC_SUCCESS;
case STREAM_GET_SIZE:
*va_arg(args, uint64_t *) = sys->length;
return VLC_SUCCESS;
case STREAM_GET_PTS_DELAY:
*va_arg(args, vlc_tick_t *) = DEFAULT_PTS_DELAY;
return VLC_SUCCESS;
case STREAM_GET_CONTENT_TYPE: {
char *type = strndup(access->psz_url + 5, sys->type_length);
*va_arg(args, char **) = type;
return likely(type != NULL) ? VLC_SUCCESS : VLC_ENOMEM;
}
case STREAM_SET_PAUSE_STATE:
return VLC_SUCCESS;
}
return VLC_ENOTSUP;
}
static int Open(vlc_object_t *obj)
{
stream_t *access = (stream_t *)obj;
const char *url = access->psz_url;
if (strncmp(url, "data:", 5))
return VLC_ENOTSUP;
url += 5;
struct access_data *sys = vlc_obj_malloc(obj, sizeof (*sys));
if (unlikely(sys == NULL))
return VLC_ENOMEM;
const char *data = strchr(url, ',');
if (unlikely(data == NULL)) {
msg_Err(obj, "invalid data URL");
return VLC_EINVAL;
}
sys->data = vlc_uri_decode_duplicate(data + 1);
if (unlikely(sys->data == NULL))
return -errno;
sys->type_length = data - url;
sys->length = strlen(sys->data);
sys->offset = 0;
if ((data - url) >= 7 && strncmp(data - 7, ";base64", 7) == 0) {
sys->type_length -= 7; /* ";base64" is not part of the type */
size_t size = sys->length - (sys->length / 4);
char *d = malloc(size);
if (likely(d != NULL))
sys->length = vlc_b64_decode_binary_to_buffer(d, size, sys->data);
free(sys->data);
sys->data = d;
if (unlikely(d == NULL))
return VLC_ENOMEM;
}
access->pf_read = Read;
access->pf_block = NULL;
access->pf_seek = Seek;
access->pf_control = Control;
access->p_sys = sys;
return VLC_SUCCESS;
}
static void Close(vlc_object_t *obj)
{
stream_t *access = (stream_t *)obj;
struct access_data *sys = access->p_sys;
free(sys->data);
}
vlc_module_begin()
set_shortname(N_("data"))
set_description(N_("data URI scheme"))
set_category(CAT_INPUT)
set_subcategory(SUBCAT_INPUT_ACCESS)
set_capability("access", 0)
set_callbacks(Open, Close)
add_shortcut("data")
vlc_module_end()
......@@ -157,6 +157,7 @@ modules/access/avio.h
modules/access/bluray.c
modules/access/cdda.c
modules/access/concat.c
modules/access/data.c
modules/access/dc1394.c
modules/access/dcp/dcp.cpp
modules/access/decklink.cpp
......
......@@ -65,7 +65,10 @@ char *vlc_uri_decode (char *str)
char hex[3];
if (!(hex[0] = *(in++)) || !(hex[1] = *(in++)))
{
errno = EINVAL;
return NULL;
}
hex[2] = '\0';
*(out++) = strtoul (hex, NULL, 0x10);
}
......