Implementing a adprintf for windows

CMakeLists.txt

@@ -18,10 +18,11 @@ set_property(TARGET transcoder PROPERTY C_STANDARD 11)
 set_property(TARGET transcoder PROPERTY POSITION_INDEPENDENT_CODE ON)
 
 target_link_libraries(transcoder avformat avcodec avutil)
-target_link_libraries(transcoder m pthread)
 
 if(WIN32)
 	target_link_libraries(transcoder wsock32 ws2_32)
 	target_link_libraries(transcoder Secur32 Secur32)
 	target_link_libraries(transcoder Bcrypt Bcrypt)
+else()
+	target_link_libraries(transcoder m pthread)
 endif()

README.md

@@ -3,7 +3,7 @@
 A C library using FFMPEG (libav) to process videos files for kyoo.
 
 ## Features
- - Return streams informations (language, title, codec, arrengements)
+ - Return streams informations (language, title, codec, arrangement)
  - Extract subtitles, fonts & chapters to an external file
  - Transmux to hls (TODO support multi-audio)
 

include/compatibility.h

@@ -8,13 +8,20 @@
 #include <stdio.h>
 
 #if defined(_WIN32) || defined(WIN32)
-	#define kmkdir(dir, mode) mkdir(dir)
 	#include <io.h>
 	#include <stddef.h>
+	#include <stdarg.h>
+
 	char *strndup(const char *str, size_t count);
+	int asprintf(char **buffer, const char *fmt, ...);
+	int vasprintf(char **buffer, const char *fmt, va_list args);
+
+	#define kmkdir(dir, mode) mkdir(dir)
+	#define S_ISDIR(x) (x & S_IFDIR)
 #else
-	#define kmkdir(dir, mode) mkdir(dir, mode)
 	#include <unistd.h>
+
+	#define kmkdir(dir, mode) mkdir(dir, mode)
 #endif
 
 #ifdef __MINGW32__

src/compatibility.c

@@ -5,6 +5,7 @@
 #include "compatibility.h"
 #include <stdlib.h>
 #include <string.h>
+#include <stdarg.h>
 
 #if defined(_WIN32) || defined(WIN32)
 char *strndup(const char *str, size_t count)
@@ -18,4 +19,32 @@ char *strndup(const char *str, size_t count)
 	memcpy(ret, str, len);
 	return ret;
 }
+
+int asprintf(char **buffer, const char *fmt, ...)
+{
+	va_list args;
+	int ret;
+
+	va_start(args, fmt);
+	ret = vasprintf(buffer, fmt, args);
+	va_end(args);
+	return ret;
+}
+
+int vasprintf(char **buffer, const char *fmt, va_list args)
+{
+	va_list copy;
+	char *ret;
+	int len;
+
+	va_copy(copy, args);
+	len = vsprintf(NULL, fmt, args);
+	va_end(copy);
+
+	*buffer = malloc(sizeof(char) * (len + 1));
+	if (!*buffer)
+		return 0;
+	vsprintf(*buffer, fmt, args);
+	return len;
+}
 #endif

src/extractor.c

@@ -132,7 +132,7 @@ void extract_chapters(AVFormatContext *ctx, const char *out_path)
 		*tmp = '\0';
 	strcat(path, ".txt");
 
-	int fd = open(path, O_WRONLY | O_CREAT, 0644);
+	FILE *file = fopen(path, "w");
 
 	for (unsigned i = 0; i < ctx->nb_chapters; i++) {
 		AVDictionaryEntry *name = av_dict_get(ctx->chapters[i]->metadata, "title", NULL, 0);
@@ -143,8 +143,8 @@ void extract_chapters(AVFormatContext *ctx, const char *out_path)
 			continue;
 		double start = chapter->start * av_q2d(chapter->time_base);
 		double end = chapter->end * av_q2d(chapter->time_base);
-		dprintf(fd, "%f %f %s\n", start, end, name->value);
+		fprintf(file, "%f %f %s\n", start, end, name->value);
 	}
-	close(fd);
+	fclose(file);
 	free(path);
 }