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avutil/log: match Windows warning yellow on a pipe

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On Windows the console paints warnings with attribute 14 (bright yellow).
The 8-color ANSI path used for a pipe emitted 0;33. Use intensity 1 for
AV_LOG_WARNING on Windows so the piped color matches the console.

Co-authored-by: Cursor <cursoragent@cursor.com>
Signed-off-by: Reinhard Nißl <rnissl@gmx.de>
This commit is contained in:
Reinhard Nißl
2026-10-16 22:42:00 +02:00
committed by michaelni
parent 8b3525e718
commit 3ebed8c087
1 changed files with 9 additions and 3 deletions
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12
libavutil/log.c
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@@ -189,11 +189,17 @@ static void check_color_terminal(void)
static void ansi_fputs(int level, int tint, const char *str, int local_use_color)
{
if (local_use_color == 1) {
uint32_t intensity = (color[level] >> 4) & 15;
uint32_t fg = color[level] & 15;
#if defined(_WIN32)
/* Piped stderr is 8-color ANSI. Linux keeps 0;33m; Windows console
* already uses win_color 14 (bright yellow), so match that here. */
if (level == AV_LOG_WARNING / 8)
intensity = 1;
#endif
fprintf(stderr,
"\033[%"PRIu32";3%"PRIu32"m%s\033[0m",
(color[level] >> 4) & 15,
color[level] & 15,
str);
intensity, fg, str);
} else if (tint && use_color == 256) {
fprintf(stderr,
"\033[48;5;%"PRIu32"m\033[38;5;%dm%s\033[0m",