libavutil: Don't use fcntl if the function does not exist

[ffmpeg] / libavutil / log.c

diff --git a/libavutil/log.c b/libavutil/log.c
index e2773d433deb742c209cf1490d8492a490fb8488..7d574f6f7b0c08a0ba47e8b1c2386d48d57c982f 100644 (file)
--- a/libavutil/log.c
+++ b/libavutil/log.c
@@ -29,15 +29,21 @@
 #if HAVE_UNISTD_H
 #include <unistd.h>
 #endif
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#include <stdarg.h>
 #include <stdlib.h>
 #include "avstring.h"
 #include "avutil.h"
+#include "common.h"
+#include "internal.h"
 #include "log.h"
 
 static int av_log_level = AV_LOG_INFO;
 static int flags;
 
-#if defined(_WIN32) && !defined(__MINGW32CE__)
+#if HAVE_SETCONSOLETEXTATTRIBUTE
 #include <windows.h>
 static const uint8_t color[] = { 12, 12, 12, 14, 7, 10, 11 };
 static int16_t background, attr_orig;
@@ -51,11 +57,10 @@ static const uint8_t color[] = { 0x41, 0x41, 0x11, 0x03, 9, 0x02, 0x06 };
 #endif
 static int use_color = -1;
 
-#undef fprintf
 static void colored_fputs(int level, const char *str)
 {
     if (use_color < 0) {
-#if defined(_WIN32) && !defined(__MINGW32CE__)
+#if HAVE_SETCONSOLETEXTATTRIBUTE
         CONSOLE_SCREEN_BUFFER_INFO con_info;
         con = GetStdHandle(STD_ERROR_HANDLE);
         use_color = (con != INVALID_HANDLE_VALUE) && !getenv("NO_COLOR") &&
@@ -100,7 +105,6 @@ void av_log_default_callback(void* ptr, int level, const char* fmt, va_list vl)
     if (level > av_log_level)
         return;
     line[0] = 0;
-#undef fprintf
     if (print_prefix && avc) {
         if (avc->parent_log_context_offset) {
             AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
@@ -177,3 +181,35 @@ void av_log_set_callback(void (*callback)(void*, int, const char*, va_list))
 {
     av_log_callback = callback;
 }
+
+static void missing_feature_sample(int sample, void *avc, const char *msg,
+                                   va_list argument_list)
+{
+    av_vlog(avc, AV_LOG_WARNING, msg, argument_list);
+    av_log(avc, AV_LOG_WARNING, " is not implemented. Update your Libav "
+           "version to the newest one from Git. If the problem still "
+           "occurs, it means that your file has a feature which has not "
+           "been implemented.\n");
+    if (sample)
+        av_log(avc, AV_LOG_WARNING, "If you want to help, upload a sample "
+               "of this file to ftp://upload.libav.org/incoming/ "
+               "and contact the libav-devel mailing list.\n");
+}
+
+void avpriv_request_sample(void *avc, const char *msg, ...)
+{
+    va_list argument_list;
+
+    va_start(argument_list, msg);
+    missing_feature_sample(1, avc, msg, argument_list);
+    va_end(argument_list);
+}
+
+void avpriv_report_missing_feature(void *avc, const char *msg, ...)
+{
+    va_list argument_list;
+
+    va_start(argument_list, msg);
+    missing_feature_sample(0, avc, msg, argument_list);
+    va_end(argument_list);
+}