Add an EXTRAHEIGHT define instead of hardcoding 30.

diff --git a/mixer.cpp b/mixer.cpp
index f67b4cd41f34c4989cb75e77be2726aa7374e33c..90a00b8e3865a9350b377c9964d9ee9161e81238 100644 (file)
--- a/mixer.cpp
+++ b/mixer.cpp
@@ -1,5 +1,6 @@
 #define WIDTH 1280
 #define HEIGHT 720
+#define EXTRAHEIGHT 30
 
 #undef Success
 
@@ -103,7 +104,7 @@ Mixer::Mixer(const QSurfaceFormat &format)
                CaptureCard *card = &cards[card_index];
                card->usb = new BMUSBCapture(0x1edb, card_index == 0 ? 0xbd3b : 0xbd4f);
                card->usb->set_frame_callback(bind(&Mixer::bm_frame, this, card_index, _1, _2, _3, _4, _5, _6, _7));
-               card->frame_allocator.reset(new PBOFrameAllocator(WIDTH * (HEIGHT+30) * 2 + 44, WIDTH, HEIGHT));
+               card->frame_allocator.reset(new PBOFrameAllocator(WIDTH * (HEIGHT+EXTRAHEIGHT) * 2 + 44, WIDTH, HEIGHT));
                card->usb->set_video_frame_allocator(card->frame_allocator.get());
                card->surface = create_surface(format);
                card->usb->set_dequeue_thread_callbacks(
@@ -241,7 +242,7 @@ void Mixer::bm_frame(int card_index, uint16_t timecode,
                if (card->should_quit) return;
        }
 
-       if (video_frame.len - video_offset != WIDTH * (HEIGHT+30) * 2) {
+       if (video_frame.len - video_offset != WIDTH * (HEIGHT+EXTRAHEIGHT) * 2) {
                if (video_frame.len != 0) {
                        printf("Card %d: Dropping video frame with wrong length (%ld)\n",
                                card_index, video_frame.len - video_offset);
@@ -276,7 +277,7 @@ void Mixer::bm_frame(int card_index, uint16_t timecode,
        // Upload the textures.
        glBindTexture(GL_TEXTURE_2D, userdata->tex_y);
        check_error();
-       glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, WIDTH, HEIGHT, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET((WIDTH * (HEIGHT+30) * 2 + 44) / 2 + WIDTH * 25 + 22));
+       glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, WIDTH, HEIGHT, GL_RED, GL_UNSIGNED_BYTE, BUFFER_OFFSET((WIDTH * (HEIGHT+EXTRAHEIGHT) * 2 + 44) / 2 + WIDTH * 25 + 22));
        check_error();
        glBindTexture(GL_TEXTURE_2D, userdata->tex_cbcr);
        check_error();