FFmpeg: libavutil/tests/log.c Source File

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;

40 av_log_set_level(AV_LOG_DEBUG);

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 }

__device__ int printf(const char *,...)

call_log_format_line2

static int call_log_format_line2(const char *fmt, char *buffer, int buffer_size,...)

Definition: log.c:26

#define AV_LOG_QUIET

Print no output.

Definition: log.h:192

#define AV_LOG_PANIC

Something went really wrong and we will crash now.

Definition: log.h:197

av_log_format_line2

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:366

#define AV_LOG_DEBUG

Stuff which is only useful for libav* developers.

Definition: log.h:231

and forward the result(frame or status change) to the corresponding input. If nothing is possible

#define NULL

Definition: coverity.c:32

#define AV_LOG_INFO

Standard information.

Definition: log.h:221

void av_log(void *avcl, int level, const char *fmt,...)

Definition: log.c:442

av_log_set_level

void av_log_set_level(int level)

Set the log level.

Definition: log.c:475

i

#define i(width, name, range_min, range_max)

Definition: cbs_h2645.c:256

static int use_color

Definition: log.c:127

ret

Definition: filter_design.txt:187

#define AV_LOG_FATAL

Something went wrong and recovery is not possible.

Definition: log.h:204

the frame and frame reference mechanism is intended to as much as expensive copies of that data while still allowing the filters to produce correct results The data is stored in buffers represented by AVFrame structures Several references can point to the same frame buffer

Definition: filter_design.txt:49

int main(int argc, char **argv)

Definition: log.c:37

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