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libavdevice/gdigrab: fix capture of windows with non-ASCII titles 

Properly convert the UTF-8 input string to Windows wchar, and
utilize the wchar version of FindWindow.

Signed-off-by: He Yang <1160386205@qq.com>
This commit is contained in:
He Yang 2021-03-20 23:32:15 +08:00 committed by Jan Ekström
parent 33db0cbfd0
commit 707f9c9f47
1 changed files with 14 additions and 1 deletions
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15
libavdevice/gdigrab.c
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@ -32,6 +32,7 @@
#include "libavformat/internal.h"
#include "libavutil/opt.h"
#include "libavutil/time.h"
#include "libavutil/wchar_filename.h"
#include <windows.h>
/**
@ -245,8 +246,20 @@ gdigrab_read_header(AVFormatContext *s1)
int ret;
if (!strncmp(filename, "title=", 6)) {
wchar_t *name_w = NULL;
name = filename + 6;
hwnd = FindWindow(NULL, name);
if(utf8towchar(name, &name_w)) {
ret = AVERROR(errno);
goto error;
}
if(!name_w) {
ret = AVERROR(EINVAL);
goto error;
}
hwnd = FindWindowW(NULL, name_w);
av_freep(&name_w);
if (!hwnd) {
av_log(s1, AV_LOG_ERROR,
"Can't find window '%s', aborting.\n", name);