avdevice: Constify all devices

[ffmpeg] / libavdevice / gdigrab.c

diff --git a/libavdevice/gdigrab.c b/libavdevice/gdigrab.c
index ab08c1178848143bad92fbaba126fb40b2404525..c0692324725e2daa94f6dcd6a500a51d844941c3 100644 (file)
--- a/libavdevice/gdigrab.c
+++ b/libavdevice/gdigrab.c
@@ -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);
@@ -277,14 +290,20 @@ gdigrab_read_header(AVFormatContext *s1)
     }
     bpp = GetDeviceCaps(source_hdc, BITSPIXEL);
 
+    horzres = GetDeviceCaps(source_hdc, HORZRES);
+    vertres = GetDeviceCaps(source_hdc, VERTRES);
+    desktophorzres = GetDeviceCaps(source_hdc, DESKTOPHORZRES);
+    desktopvertres = GetDeviceCaps(source_hdc, DESKTOPVERTRES);
+
     if (hwnd) {
         GetClientRect(hwnd, &virtual_rect);
+        /* window -- get the right height and width for scaling DPI */
+        virtual_rect.left   = virtual_rect.left   * desktophorzres / horzres;
+        virtual_rect.right  = virtual_rect.right  * desktophorzres / horzres;
+        virtual_rect.top    = virtual_rect.top    * desktopvertres / vertres;
+        virtual_rect.bottom = virtual_rect.bottom * desktopvertres / vertres;
     } else {
         /* desktop -- get the right height and width for scaling DPI */
-        horzres = GetDeviceCaps(source_hdc, HORZRES);
-        vertres = GetDeviceCaps(source_hdc, VERTRES);
-        desktophorzres = GetDeviceCaps(source_hdc, DESKTOPHORZRES);
-        desktopvertres = GetDeviceCaps(source_hdc, DESKTOPVERTRES);
         virtual_rect.left = GetSystemMetrics(SM_XVIRTUALSCREEN);
         virtual_rect.top = GetSystemMetrics(SM_YVIRTUALSCREEN);
         virtual_rect.right = (virtual_rect.left + GetSystemMetrics(SM_CXVIRTUALSCREEN)) * desktophorzres / horzres;
@@ -388,7 +407,7 @@ gdigrab_read_header(AVFormatContext *s1)
     gdigrab->header_size = sizeof(BITMAPFILEHEADER) + sizeof(BITMAPINFOHEADER) +
                            (bpp <= 8 ? (1 << bpp) : 0) * sizeof(RGBQUAD) /* palette size */;
     gdigrab->time_base   = av_inv_q(gdigrab->framerate);
-    gdigrab->time_frame  = av_gettime() / av_q2d(gdigrab->time_base);
+    gdigrab->time_frame  = av_gettime_relative() / av_q2d(gdigrab->time_base);
 
     gdigrab->hwnd       = hwnd;
     gdigrab->source_hdc = source_hdc;
@@ -473,25 +492,26 @@ static void paint_mouse_pointer(AVFormatContext *s1, struct gdigrab *gdigrab)
             goto icon_error;
         }
 
-        pos.x = ci.ptScreenPos.x - clip_rect.left - info.xHotspot;
-        pos.y = ci.ptScreenPos.y - clip_rect.top - info.yHotspot;
-
         if (hwnd) {
             RECT rect;
 
             if (GetWindowRect(hwnd, &rect)) {
-                pos.x -= rect.left;
-                pos.y -= rect.top;
+                pos.x = ci.ptScreenPos.x - clip_rect.left - info.xHotspot - rect.left;
+                pos.y = ci.ptScreenPos.y - clip_rect.top - info.yHotspot - rect.top;
+
+                //that would keep the correct location of mouse with hidpi screens
+                pos.x = pos.x * desktophorzres / horzres;
+                pos.y = pos.y * desktopvertres / vertres;
             } else {
                 CURSOR_ERROR("Couldn't get window rectangle");
                 goto icon_error;
             }
+        } else {
+            //that would keep the correct location of mouse with hidpi screens
+            pos.x = ci.ptScreenPos.x * desktophorzres / horzres - clip_rect.left - info.xHotspot;
+            pos.y = ci.ptScreenPos.y * desktopvertres / vertres - clip_rect.top - info.yHotspot;
         }
 
-        //that would keep the correct location of mouse with hidpi screens
-        pos.x = pos.x * desktophorzres / horzres;
-        pos.y = pos.y * desktopvertres / vertres;
-
         av_log(s1, AV_LOG_DEBUG, "Cursor pos (%li,%li) -> (%li,%li)\n",
                 ci.ptScreenPos.x, ci.ptScreenPos.y, pos.x, pos.y);
 
@@ -544,7 +564,7 @@ static int gdigrab_read_packet(AVFormatContext *s1, AVPacket *pkt)
 
     /* wait based on the frame rate */
     for (;;) {
-        curtime = av_gettime();
+        curtime = av_gettime_relative();
         delay = time_frame * av_q2d(time_base) - curtime;
         if (delay <= 0) {
             if (delay < INT64_C(-1000000) * av_q2d(time_base)) {
@@ -561,7 +581,7 @@ static int gdigrab_read_packet(AVFormatContext *s1, AVPacket *pkt)
 
     if (av_new_packet(pkt, file_size) < 0)
         return AVERROR(ENOMEM);
-    pkt->pts = curtime;
+    pkt->pts = av_gettime();
 
     /* Blit screen grab */
     if (!BitBlt(dest_hdc, 0, 0,
@@ -640,10 +660,11 @@ static const AVClass gdigrab_class = {
     .item_name  = av_default_item_name,
     .option     = options,
     .version    = LIBAVUTIL_VERSION_INT,
+    .category   = AV_CLASS_CATEGORY_DEVICE_VIDEO_INPUT,
 };
 
 /** gdi grabber device demuxer declaration */
-AVInputFormat ff_gdigrab_demuxer = {
+const AVInputFormat ff_gdigrab_demuxer = {
     .name           = "gdigrab",
     .long_name      = NULL_IF_CONFIG_SMALL("GDI API Windows frame grabber"),
     .priv_data_size = sizeof(struct gdigrab),