[FFmpeg-cvslog] avutil/log: add support for forced ANSI colors on win32
Marton Balint
git at videolan.org
Sun Feb 9 21:48:07 EET 2020
ffmpeg | branch: master | Marton Balint <cus at passwd.hu> | Wed Jan 29 00:30:06 2020 +0100| [31acaa1ec61381ac6a6c38908fa860d62744ee62] | committer: Marton Balint
avutil/log: add support for forced ANSI colors on win32
To make behavior the same as non-win32 code when the standard error is
redirected. Also restructure the code a bit.
Signed-off-by: Marton Balint <cus at passwd.hu>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=31acaa1ec61381ac6a6c38908fa860d62744ee62
---
libavutil/log.c | 41 +++++++++++++++++++++++++++--------------
1 file changed, 27 insertions(+), 14 deletions(-)
diff --git a/libavutil/log.c b/libavutil/log.c
index 6374050770..213594c2a5 100644
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -122,28 +122,37 @@ static int use_color = -1;
static void check_color_terminal(void)
{
+ char *term = getenv("TERM");
+
#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
CONSOLE_SCREEN_BUFFER_INFO con_info;
DWORD dummy;
con = GetStdHandle(STD_ERROR_HANDLE);
if (con != INVALID_HANDLE_VALUE && !GetConsoleMode(con, &dummy))
con = INVALID_HANDLE_VALUE;
- use_color = (con != INVALID_HANDLE_VALUE) && !getenv("AV_LOG_FORCE_NOCOLOR");
- if (use_color) {
+ if (con != INVALID_HANDLE_VALUE) {
GetConsoleScreenBufferInfo(con, &con_info);
attr_orig = con_info.wAttributes;
background = attr_orig & 0xF0;
}
+#endif
+
+ if (getenv("AV_LOG_FORCE_NOCOLOR")) {
+ use_color = 0;
+ } else if (getenv("AV_LOG_FORCE_COLOR")) {
+ use_color = 1;
+ } else {
+#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
+ use_color = (con != INVALID_HANDLE_VALUE);
#elif HAVE_ISATTY
- char *term = getenv("TERM");
- use_color = !getenv("AV_LOG_FORCE_NOCOLOR") &&
- (getenv("TERM") && isatty(2) || getenv("AV_LOG_FORCE_COLOR"));
- if ( getenv("AV_LOG_FORCE_256COLOR")
- || (term && strstr(term, "256color")))
- use_color *= 256;
+ use_color = (term && isatty(2));
#else
- use_color = getenv("AV_LOG_FORCE_COLOR") && !getenv("AV_LOG_FORCE_NOCOLOR");
+ use_color = 0;
#endif
+ }
+
+ if (getenv("AV_LOG_FORCE_256COLOR") || term && strstr(term, "256color"))
+ use_color *= 256;
}
static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
@@ -183,11 +192,15 @@ static void colored_fputs(int level, int tint, const char *str)
else local_use_color = use_color;
#if defined(_WIN32) && HAVE_SETCONSOLETEXTATTRIBUTE && HAVE_GETSTDHANDLE
- if (local_use_color)
- SetConsoleTextAttribute(con, background | color[level]);
- fputs(str, stderr);
- if (local_use_color)
- SetConsoleTextAttribute(con, attr_orig);
+ if (con != INVALID_HANDLE_VALUE) {
+ if (local_use_color)
+ SetConsoleTextAttribute(con, background | color[level]);
+ fputs(str, stderr);
+ if (local_use_color)
+ SetConsoleTextAttribute(con, attr_orig);
+ } else {
+ ansi_fputs(level, tint, str, local_use_color);
+ }
#else
ansi_fputs(level, tint, str, local_use_color);
#endif
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