Line |
Branch |
Exec |
Source |
1 |
|
|
/* |
2 |
|
|
* Copyright (c) The FFmpeg developers |
3 |
|
|
* |
4 |
|
|
* This file is part of FFmpeg. |
5 |
|
|
* |
6 |
|
|
* FFmpeg is free software; you can redistribute it and/or |
7 |
|
|
* modify it under the terms of the GNU Lesser General Public |
8 |
|
|
* License as published by the Free Software Foundation; either |
9 |
|
|
* version 2.1 of the License, or (at your option) any later version. |
10 |
|
|
* |
11 |
|
|
* FFmpeg is distributed in the hope that it will be useful, |
12 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
13 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
14 |
|
|
* Lesser General Public License for more details. |
15 |
|
|
* |
16 |
|
|
* You should have received a copy of the GNU Lesser General Public |
17 |
|
|
* License along with FFmpeg; if not, write to the Free Software |
18 |
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
19 |
|
|
*/ |
20 |
|
|
|
21 |
|
|
#include <limits.h> |
22 |
|
|
#include <stdarg.h> |
23 |
|
|
#include <string.h> |
24 |
|
|
|
25 |
|
|
#include "avtextwriters.h" |
26 |
|
|
#include "libavutil/avassert.h" |
27 |
|
|
|
28 |
|
|
#include "libavutil/error.h" |
29 |
|
|
|
30 |
|
|
/* AVIO Writer */ |
31 |
|
|
|
32 |
|
|
# define WRITER_NAME "aviowriter" |
33 |
|
|
|
34 |
|
|
typedef struct IOWriterContext { |
35 |
|
|
const AVClass *class; |
36 |
|
|
AVIOContext *avio_context; |
37 |
|
|
int close_on_uninit; |
38 |
|
|
} IOWriterContext; |
39 |
|
|
|
40 |
|
✗ |
static av_cold int iowriter_uninit(AVTextWriterContext *wctx) |
41 |
|
|
{ |
42 |
|
✗ |
IOWriterContext *ctx = wctx->priv; |
43 |
|
✗ |
int ret = 0; |
44 |
|
|
|
45 |
|
✗ |
if (ctx->close_on_uninit) |
46 |
|
✗ |
ret = avio_closep(&ctx->avio_context); |
47 |
|
✗ |
return ret; |
48 |
|
|
} |
49 |
|
|
|
50 |
|
✗ |
static void io_w8(AVTextWriterContext *wctx, int b) |
51 |
|
|
{ |
52 |
|
✗ |
IOWriterContext *ctx = wctx->priv; |
53 |
|
✗ |
avio_w8(ctx->avio_context, b); |
54 |
|
✗ |
} |
55 |
|
|
|
56 |
|
✗ |
static void io_put_str(AVTextWriterContext *wctx, const char *str) |
57 |
|
|
{ |
58 |
|
✗ |
IOWriterContext *ctx = wctx->priv; |
59 |
|
✗ |
avio_write(ctx->avio_context, (const unsigned char *)str, (int)strlen(str)); |
60 |
|
✗ |
} |
61 |
|
|
|
62 |
|
✗ |
static void io_vprintf(AVTextWriterContext *wctx, const char *fmt, va_list vl) |
63 |
|
|
{ |
64 |
|
✗ |
IOWriterContext *ctx = wctx->priv; |
65 |
|
|
|
66 |
|
✗ |
avio_vprintf(ctx->avio_context, fmt, vl); |
67 |
|
✗ |
} |
68 |
|
|
|
69 |
|
|
|
70 |
|
|
const AVTextWriter avtextwriter_avio = { |
71 |
|
|
.name = WRITER_NAME, |
72 |
|
|
.priv_size = sizeof(IOWriterContext), |
73 |
|
|
.uninit = iowriter_uninit, |
74 |
|
|
.writer_put_str = io_put_str, |
75 |
|
|
.writer_vprintf = io_vprintf, |
76 |
|
|
.writer_w8 = io_w8 |
77 |
|
|
}; |
78 |
|
|
|
79 |
|
✗ |
int avtextwriter_create_file(AVTextWriterContext **pwctx, const char *output_filename) |
80 |
|
|
{ |
81 |
|
|
IOWriterContext *ctx; |
82 |
|
|
int ret; |
83 |
|
|
|
84 |
|
✗ |
if (!output_filename || !output_filename[0]) { |
85 |
|
✗ |
av_log(NULL, AV_LOG_ERROR, "The output_filename cannot be NULL or empty\n"); |
86 |
|
✗ |
return AVERROR(EINVAL); |
87 |
|
|
} |
88 |
|
|
|
89 |
|
✗ |
ret = avtextwriter_context_open(pwctx, &avtextwriter_avio); |
90 |
|
✗ |
if (ret < 0) |
91 |
|
✗ |
return ret; |
92 |
|
|
|
93 |
|
✗ |
ctx = (*pwctx)->priv; |
94 |
|
|
|
95 |
|
✗ |
if ((ret = avio_open(&ctx->avio_context, output_filename, AVIO_FLAG_WRITE)) < 0) { |
96 |
|
✗ |
av_log(ctx, AV_LOG_ERROR, |
97 |
|
✗ |
"Failed to open output '%s' with error: %s\n", output_filename, av_err2str(ret)); |
98 |
|
✗ |
avtextwriter_context_close(pwctx); |
99 |
|
✗ |
return ret; |
100 |
|
|
} |
101 |
|
|
|
102 |
|
✗ |
ctx->close_on_uninit = 1; |
103 |
|
|
|
104 |
|
✗ |
return ret; |
105 |
|
|
} |
106 |
|
|
|
107 |
|
|
|
108 |
|
✗ |
int avtextwriter_create_avio(AVTextWriterContext **pwctx, AVIOContext *avio_ctx, int close_on_uninit) |
109 |
|
|
{ |
110 |
|
|
IOWriterContext *ctx; |
111 |
|
|
int ret; |
112 |
|
|
|
113 |
|
✗ |
av_assert0(avio_ctx); |
114 |
|
|
|
115 |
|
✗ |
ret = avtextwriter_context_open(pwctx, &avtextwriter_avio); |
116 |
|
✗ |
if (ret < 0) |
117 |
|
✗ |
return ret; |
118 |
|
|
|
119 |
|
✗ |
ctx = (*pwctx)->priv; |
120 |
|
✗ |
ctx->avio_context = avio_ctx; |
121 |
|
✗ |
ctx->close_on_uninit = close_on_uninit; |
122 |
|
|
|
123 |
|
✗ |
return ret; |
124 |
|
|
} |
125 |
|
|
|