FFmpeg
log.c
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1 /*
2  * log functions
3  * Copyright (c) 2003 Michel Bardiaux
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 "libavutil/log.c"
23 
24 #include <string.h>
25 
26 static int call_log_format_line2(const char *fmt, char *buffer, int buffer_size, ...)
27 {
28  va_list args;
29  int ret;
30  int print_prefix=1;
31  va_start(args, buffer_size);
32  ret = av_log_format_line2(NULL, AV_LOG_INFO, fmt, args, buffer, buffer_size, &print_prefix);
33  va_end(args);
34  return ret;
35 }
36 
37 int main(int argc, char **argv)
38 {
39  int i;
41  for (use_color=0; use_color<=256; use_color = 255*use_color+1) {
42  av_log(NULL, AV_LOG_FATAL, "use_color: %d\n", use_color);
43  for (i = AV_LOG_DEBUG; i>=AV_LOG_QUIET; i-=8) {
44  av_log(NULL, i, " %d", i);
45  av_log(NULL, AV_LOG_INFO, "e ");
46  av_log(NULL, i + 256*123, "C%d", i);
47  av_log(NULL, AV_LOG_INFO, "e");
48  }
49  av_log(NULL, AV_LOG_PANIC, "\n");
50  }
51  {
52  int result;
53  char buffer[4];
54  result = call_log_format_line2("foo", NULL, 0);
55  if(result != 3) {
56  printf("Test NULL buffer failed.\n");
57  return 1;
58  }
59  result = call_log_format_line2("foo", buffer, 2);
60  if(result != 3 || strncmp(buffer, "f", 2)) {
61  printf("Test buffer too small failed.\n");
62  return 1;
63  }
64  result = call_log_format_line2("foo", buffer, 4);
65  if(result != 3 || strncmp(buffer, "foo", 4)) {
66  printf("Test buffer sufficiently big failed.\n");
67  return 1;
68  }
69  }
70  return 0;
71 }
#define NULL
Definition: coverity.c:32
const char * fmt
Definition: avisynth_c.h:861
void av_log_set_level(int level)
Set the log level.
Definition: log.c:385
int main(int argc, char **argv)
Definition: log.c:37
#define AV_LOG_QUIET
Print no output.
Definition: log.h:158
#define AV_LOG_PANIC
Something went really wrong and we will crash now.
Definition: log.h:163
#define i(width, name, range_min, range_max)
Definition: cbs_h2645.c:259
#define AV_LOG_DEBUG
Stuff which is only useful for libav* developers.
Definition: log.h:197
void av_log(void *avcl, int level, const char *fmt,...)
Definition: log.c:361
int av_log_format_line2(void *ptr, int level, const char *fmt, va_list vl, char *line, int line_size, int *print_prefix)
Format a line of log the same way as the default callback.
Definition: log.c:288
AVS_Value args
Definition: avisynth_c.h:775
#define AV_LOG_INFO
Standard information.
Definition: log.h:187
static int call_log_format_line2(const char *fmt, char *buffer, int buffer_size,...)
Definition: log.c:26
logging functions
static int use_color
Definition: log.c:121
printf("static const uint8_t my_array[100] = {\n")
and forward the result(frame or status change) to the corresponding input.If nothing is possible
#define AV_LOG_FATAL
Something went wrong and recovery is not possible.
Definition: log.h:170
GLuint buffer
Definition: opengl_enc.c:101