Browse code

lavf: add samba protocol via libsmbclient

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Lukasz Marek authored on 2014/07/13 07:54:23
Showing 8 changed files
... ...
@@ -33,6 +33,7 @@ version <next>:
33 33
 - flanger filter
34 34
 - Image format auto-detection
35 35
 - LRC demuxer and muxer
36
+- Samba protocol (via libsmbclient)
36 37
 
37 38
 
38 39
 version 2.2:
... ...
@@ -227,6 +227,7 @@ External library support:
227 227
   --enable-librtmp         enable RTMP[E] support via librtmp [no]
228 228
   --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
229 229
   --enable-libshine        enable fixed-point MP3 encoding via libshine [no]
230
+  --enable-libsmbclient    enable Samba protocol via libsmbclient [no]
230 231
   --enable-libsoxr         enable Include libsoxr resampling [no]
231 232
   --enable-libspeex        enable Speex de/encoding via libspeex [no]
232 233
   --enable-libssh          enable SFTP protocol via libssh [no]
... ...
@@ -1349,6 +1350,7 @@ EXTERNAL_LIBRARY_LIST="
1349 1349
     librtmp
1350 1350
     libschroedinger
1351 1351
     libshine
1352
+    libsmbclient
1352 1353
     libsoxr
1353 1354
     libspeex
1354 1355
     libssh
... ...
@@ -2472,6 +2474,7 @@ librtmpe_protocol_deps="librtmp"
2472 2472
 librtmps_protocol_deps="librtmp"
2473 2473
 librtmpt_protocol_deps="librtmp"
2474 2474
 librtmpte_protocol_deps="librtmp"
2475
+libsmbclient_protocol_deps="libsmbclient gplv3"
2475 2476
 libssh_protocol_deps="libssh"
2476 2477
 mmsh_protocol_select="http_protocol"
2477 2478
 mmst_protocol_select="network"
... ...
@@ -4240,6 +4243,7 @@ die_license_disabled_gpl() {
4240 4240
 
4241 4241
 die_license_disabled gpl frei0r
4242 4242
 die_license_disabled gpl libcdio
4243
+die_license_disabled gpl libsmbclient
4243 4244
 die_license_disabled gpl libutvideo
4244 4245
 die_license_disabled gpl libvidstab
4245 4246
 die_license_disabled gpl libx264
... ...
@@ -4256,6 +4260,7 @@ enabled gpl && die_license_disabled_gpl nonfree openssl
4256 4256
 
4257 4257
 die_license_disabled version3 libopencore_amrnb
4258 4258
 die_license_disabled version3 libopencore_amrwb
4259
+die_license_disabled version3 libsmbclient
4259 4260
 die_license_disabled version3 libvo_aacenc
4260 4261
 die_license_disabled version3 libvo_amrwbenc
4261 4262
 
... ...
@@ -4744,6 +4749,9 @@ enabled libquvi           && require_pkg_config libquvi quvi/quvi.h quvi_init
4744 4744
 enabled librtmp           && require_pkg_config librtmp librtmp/rtmp.h RTMP_Socket
4745 4745
 enabled libschroedinger   && require_pkg_config schroedinger-1.0 schroedinger/schro.h schro_init
4746 4746
 enabled libshine          && require_pkg_config shine shine/layer3.h shine_encode_buffer
4747
+enabled libsmbclient      && { { check_pkg_config smbclient libsmbclient.h smbc_init &&
4748
+                                 require_pkg_config smbclient libsmbclient.h smbc_init; } ||
4749
+                                 require smbclient libsmbclient.h smbc_init -lsmbclient; }
4747 4750
 enabled libsoxr           && require libsoxr soxr.h soxr_create -lsoxr
4748 4751
 enabled libssh            && require_pkg_config libssh libssh/sftp.h sftp_init
4749 4752
 enabled libspeex          && require libspeex speex/speex.h speex_decoder_init -lspeex
... ...
@@ -1065,6 +1065,7 @@ performance on systems without hardware floating point support).
1065 1065
 @item RTMPTE       @tab X
1066 1066
 @item RTMPTS       @tab X
1067 1067
 @item RTP          @tab X
1068
+@item SAMBA        @tab E
1068 1069
 @item SCTP         @tab X
1069 1070
 @item SFTP         @tab E
1070 1071
 @item TCP          @tab X
... ...
@@ -537,6 +537,35 @@ The Real-Time Messaging Protocol tunneled through HTTPS (RTMPTS) is used
537 537
 for streaming multimedia content within HTTPS requests to traverse
538 538
 firewalls.
539 539
 
540
+@section libsmbclient
541
+
542
+libsmbclient permits to manipulate CIFS/SMB network resources.
543
+
544
+Following syntax is required.
545
+
546
+@example
547
+smb://[[domain:]user[:password@@]]server[/share[/path[/file]]]
548
+@end example
549
+
550
+This protocol accepts the following options.
551
+
552
+@table @option
553
+@item timeout
554
+Set timeout in miliseconds of socket I/O operations used by the underlying
555
+low level operation. By default it is set to -1, which means that the timeout
556
+is not specified.
557
+
558
+@item truncate
559
+Truncate existing files on write, if set to 1. A value of 0 prevents
560
+truncating. Default value is 1.
561
+
562
+@item workgroup
563
+Set the workgroup used for making connections. By default workgroup is not specified.
564
+
565
+@end table
566
+
567
+For more information see: @url{http://www.samba.org/}.
568
+
540 569
 @section libssh
541 570
 
542 571
 Secure File Transfer Protocol via libssh
... ...
@@ -459,6 +459,7 @@ OBJS-$(CONFIG_LIBNUT_MUXER)              += libnut.o
459 459
 OBJS-$(CONFIG_LIBQUVI_DEMUXER)           += libquvi.o
460 460
 OBJS-$(CONFIG_LIBRTMP)                   += librtmp.o
461 461
 OBJS-$(CONFIG_LIBSSH_PROTOCOL)           += libssh.o
462
+OBJS-$(CONFIG_LIBSMBCLIENT_PROTOCOL)     += libsmbclient.o
462 463
 
463 464
 # protocols I/O
464 465
 OBJS-$(CONFIG_APPLEHTTP_PROTOCOL)        += hlsproto.o
... ...
@@ -376,4 +376,5 @@ void av_register_all(void)
376 376
     REGISTER_PROTOCOL(LIBRTMPT,         librtmpt);
377 377
     REGISTER_PROTOCOL(LIBRTMPTE,        librtmpte);
378 378
     REGISTER_PROTOCOL(LIBSSH,           libssh);
379
+    REGISTER_PROTOCOL(LIBSMBCLIENT,     libsmbclient);
379 380
 }
380 381
new file mode 100644
... ...
@@ -0,0 +1,207 @@
0
+/*
1
+ * Copyright (c) 2014 Lukasz Marek <lukasz.m.luki@gmail.com>
2
+ *
3
+ * This file is part of FFmpeg.
4
+ *
5
+ * FFmpeg is free software; you can redistribute it and/or
6
+ * modify it under the terms of the GNU Lesser General Public
7
+ * License as published by the Free Software Foundation; either
8
+ * version 2.1 of the License, or (at your option) any later version.
9
+ *
10
+ * FFmpeg is distributed in the hope that it will be useful,
11
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13
+ * Lesser General Public License for more details.
14
+ *
15
+ * You should have received a copy of the GNU Lesser General Public
16
+ * License along with FFmpeg; if not, write to the Free Software
17
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
18
+ */
19
+
20
+#include <libsmbclient.h>
21
+#include "libavutil/avstring.h"
22
+#include "libavutil/opt.h"
23
+#include "avformat.h"
24
+#include "internal.h"
25
+#include "url.h"
26
+
27
+typedef struct {
28
+    const AVClass *class;
29
+    SMBCCTX *ctx;
30
+    int fd;
31
+    int64_t filesize;
32
+    int trunc;
33
+    int timeout;
34
+    char *workgroup;
35
+} LIBSMBContext;
36
+
37
+static void libsmbc_get_auth_data(SMBCCTX *c, const char *server, const char *share,
38
+                                  char *workgroup, int workgroup_len,
39
+                                  char *username, int username_len,
40
+                                  char *password, int password_len)
41
+{
42
+    /* Do nothing yet. Credentials are passed via url.
43
+     * Callback must exists, there might be a segmentation fault otherwise. */
44
+}
45
+
46
+static av_cold int libsmbc_connect(URLContext *h)
47
+{
48
+    LIBSMBContext *libsmbc = h->priv_data;
49
+
50
+    libsmbc->ctx = smbc_new_context();
51
+    if (!libsmbc->ctx) {
52
+        av_log(h, AV_LOG_ERROR, "Cannot create context: %s.\n", strerror(errno));
53
+        return AVERROR(errno);
54
+    }
55
+    if (!smbc_init_context(libsmbc->ctx)) {
56
+        av_log(h, AV_LOG_ERROR, "Cannot initialize context: %s.\n", strerror(errno));
57
+        return AVERROR(errno);
58
+    }
59
+    smbc_set_context(libsmbc->ctx);
60
+
61
+    smbc_setOptionUserData(libsmbc->ctx, h);
62
+    smbc_setFunctionAuthDataWithContext(libsmbc->ctx, libsmbc_get_auth_data);
63
+
64
+    if (libsmbc->timeout != -1)
65
+        smbc_setTimeout(libsmbc->ctx, libsmbc->timeout);
66
+    if (libsmbc->workgroup)
67
+        smbc_setWorkgroup(libsmbc->ctx, libsmbc->workgroup);
68
+
69
+    if (smbc_init(NULL, 0) < 0) {
70
+        av_log(h, AV_LOG_ERROR, "Initialization failed: %s\n", strerror(errno));
71
+        return AVERROR(errno);
72
+    }
73
+    return 0;
74
+}
75
+
76
+static av_cold int libsmbc_close(URLContext *h)
77
+{
78
+    LIBSMBContext *libsmbc = h->priv_data;
79
+    if (libsmbc->fd >= 0) {
80
+        smbc_close(libsmbc->fd);
81
+        libsmbc->fd = -1;
82
+    }
83
+    if (libsmbc->ctx) {
84
+        smbc_free_context(libsmbc->ctx, 1);
85
+        libsmbc->ctx = NULL;
86
+    }
87
+    return 0;
88
+}
89
+
90
+static av_cold int libsmbc_open(URLContext *h, const char *url, int flags)
91
+{
92
+    LIBSMBContext *libsmbc = h->priv_data;
93
+    int access, ret;
94
+    struct stat st;
95
+
96
+    libsmbc->fd = -1;
97
+    libsmbc->filesize = -1;
98
+
99
+    if ((ret = libsmbc_connect(h)) < 0)
100
+        goto fail;
101
+
102
+    if ((flags & AVIO_FLAG_WRITE) && (flags & AVIO_FLAG_READ)) {
103
+        access = O_CREAT | O_RDWR;
104
+        if (libsmbc->trunc)
105
+            access |= O_TRUNC;
106
+    } else if (flags & AVIO_FLAG_WRITE) {
107
+        access = O_CREAT | O_WRONLY;
108
+        if (libsmbc->trunc)
109
+            access |= O_TRUNC;
110
+    } else
111
+        access = O_RDONLY;
112
+
113
+    /* 0666 = -rw-rw-rw- = read+write for everyone, minus umask */
114
+    if ((libsmbc->fd = smbc_open(url, access, 0666)) < 0) {
115
+        ret = AVERROR(errno);
116
+        av_log(h, AV_LOG_ERROR, "File open failed: %s\n", strerror(errno));
117
+        goto fail;
118
+    }
119
+
120
+    if (smbc_fstat(libsmbc->fd, &st) < 0)
121
+        av_log(h, AV_LOG_WARNING, "Cannot stat file: %s\n", strerror(errno));
122
+    else
123
+        libsmbc->filesize = st.st_size;
124
+
125
+    return 0;
126
+  fail:
127
+    libsmbc_close(h);
128
+    return ret;
129
+}
130
+
131
+static int64_t libsmbc_seek(URLContext *h, int64_t pos, int whence)
132
+{
133
+    LIBSMBContext *libsmbc = h->priv_data;
134
+    int64_t newpos;
135
+
136
+    if (whence == AVSEEK_SIZE) {
137
+        if (libsmbc->filesize == -1) {
138
+            av_log(h, AV_LOG_ERROR, "Error during seeking: filesize is unknown.\n");
139
+            return AVERROR(EIO);
140
+        } else
141
+            return libsmbc->filesize;
142
+    }
143
+
144
+    if ((newpos = smbc_lseek(libsmbc->fd, pos, whence)) < 0) {
145
+        int err = errno;
146
+        av_log(h, AV_LOG_ERROR, "Error during seeking: %s\n", strerror(err));
147
+        return AVERROR(err);
148
+    }
149
+
150
+    return newpos;
151
+}
152
+
153
+static int libsmbc_read(URLContext *h, unsigned char *buf, int size)
154
+{
155
+    LIBSMBContext *libsmbc = h->priv_data;
156
+    int bytes_read;
157
+
158
+    if ((bytes_read = smbc_read(libsmbc->fd, buf, size)) < 0) {
159
+        av_log(h, AV_LOG_ERROR, "Read error: %s\n", strerror(errno));
160
+        return AVERROR(errno);
161
+    }
162
+
163
+    return bytes_read;
164
+}
165
+
166
+static int libsmbc_write(URLContext *h, const unsigned char *buf, int size)
167
+{
168
+    LIBSMBContext *libsmbc = h->priv_data;
169
+    int bytes_written;
170
+
171
+    if ((bytes_written = smbc_write(libsmbc->fd, buf, size)) < 0) {
172
+        av_log(h, AV_LOG_ERROR, "Write error: %s\n", strerror(errno));
173
+        return AVERROR(errno);
174
+    }
175
+
176
+    return bytes_written;
177
+}
178
+
179
+#define OFFSET(x) offsetof(LIBSMBContext, x)
180
+#define D AV_OPT_FLAG_DECODING_PARAM
181
+#define E AV_OPT_FLAG_ENCODING_PARAM
182
+static const AVOption options[] = {
183
+    {"timeout",   "set timeout in ms of socket I/O operations",    OFFSET(timeout), AV_OPT_TYPE_INT, {.i64 = -1}, -1, INT_MAX, D|E },
184
+    {"truncate",  "truncate existing files on write",              OFFSET(trunc),   AV_OPT_TYPE_INT, { .i64 = 1 }, 0, 1, E },
185
+    {"workgroup", "set the workgroup used for making connections", OFFSET(workgroup), AV_OPT_TYPE_STRING, { 0 }, 0, 0, D|E },
186
+    {NULL}
187
+};
188
+
189
+static const AVClass libsmbclient_context_class = {
190
+    .class_name     = "libsmbc",
191
+    .item_name      = av_default_item_name,
192
+    .option         = options,
193
+    .version        = LIBAVUTIL_VERSION_INT,
194
+};
195
+
196
+URLProtocol ff_libsmbclient_protocol = {
197
+    .name                = "smb",
198
+    .url_open            = libsmbc_open,
199
+    .url_read            = libsmbc_read,
200
+    .url_write           = libsmbc_write,
201
+    .url_seek            = libsmbc_seek,
202
+    .url_close           = libsmbc_close,
203
+    .priv_data_size      = sizeof(LIBSMBContext),
204
+    .priv_data_class     = &libsmbclient_context_class,
205
+    .flags               = URL_PROTOCOL_FLAG_NETWORK,
206
+};
... ...
@@ -30,7 +30,7 @@
30 30
 #include "libavutil/version.h"
31 31
 
32 32
 #define LIBAVFORMAT_VERSION_MAJOR 55
33
-#define LIBAVFORMAT_VERSION_MINOR 45
33
+#define LIBAVFORMAT_VERSION_MINOR 46
34 34
 #define LIBAVFORMAT_VERSION_MICRO 100
35 35
 
36 36
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \