M include/mgba/internal/ds/ds.h → include/mgba/internal/ds/ds.h

@@ -111,6 +111,7 @@ struct VFile* bios7Vf;
 	struct VFile* bios9Vf;
 	struct VFile* firmwareVf;
 
+	struct mAVStream* stream;
 	struct mKeyCallback* keyCallback;
 	struct mCoreCallbacks* coreCallbacks;
 

M src/ds/core.c → src/ds/core.c

@@ -162,6 +162,11 @@ ds->coreCallbacks = coreCallbacks;
 }
 
 static void _DSCoreSetAVStream(struct mCore* core, struct mAVStream* stream) {
+	struct DS* ds = core->board;
+	ds->stream = stream;
+	if (stream && stream->videoDimensionsChanged) {
+		stream->videoDimensionsChanged(stream, DS_VIDEO_HORIZONTAL_PIXELS, DS_VIDEO_VERTICAL_PIXELS * 2);
+	}
 }
 
 static bool _DSCoreLoadROM(struct mCore* core, struct VFile* vf) {

M src/ds/ds.c → src/ds/ds.c

@@ -835,4 +835,11 @@ struct mCoreCallbacks* callbacks = ds->coreCallbacks;
 	if (callbacks && callbacks->videoFrameEnded) {
 		callbacks->videoFrameEnded(callbacks->context);
 	}
+
+	if (ds->stream && ds->stream->postVideoFrame) {
+		const color_t* pixels;
+		size_t stride;
+		ds->video.renderer->getPixels(ds->video.renderer, &stride, (const void**) &pixels);
+		ds->stream->postVideoFrame(ds->stream, pixels, stride);
+	}
 }