Video Display Support for Raspberry Pi (#228)

* Adding a new video display module for the Raspberry Pi...

* Made it work with libomxil-bellagio

- Fixed framing woes with vidconv() :)

* Some Attention to the build system,
Automatically use libomx-bellagio or RPi OMX API
Introduces USE_OMX_RPI and USE_OMX_BELLAGIO in mk/modules.mk
use sys_usleep()
Removed pthread mutexes, they are not needed anymore

1 files changed, 49 insertions, 0 deletions

diff --git a/modules/omx/omx.h b/modules/omx/omx.h
new file mode 100644
index 0000000..5ca49bf
--- /dev/null
+++ b/modules/omx/omx.h
@@ -0,0 +1,49 @@
+/**
+ * @file omx.h     Raspberry Pi VideoCoreIV OpenMAX interface
+ *
+ * Copyright (C) 2016 - 2017 Creytiv.com
+ * Copyright (C) 2016 - 2017 Jonathan Sieber
+ */
+
+#ifdef RASPBERRY_PI
+#include <IL/OMX_Core.h>
+#include <IL/OMX_Video.h>
+#include <IL/OMX_Broadcom.h>
+#else
+#include <OMX_Core.h>
+#include <OMX_Component.h>
+#include <OMX_Video.h>
+
+#define OMX_VERSION 0x01010101
+#define OMX_ERROR_NONE 0
+#endif
+
+#include <pthread.h>
+#include <stdint.h>
+#include <string.h>
+
+/* Needed for usleep to appear */
+#define _BSD_SOURCE
+#include <unistd.h>
+
+struct omx_state {
+	pthread_mutex_t omx_mutex;
+
+	OMX_HANDLETYPE video_render;
+	OMX_BUFFERHEADERTYPE** buffers;
+	int num_buffers;
+	int current_buffer;
+
+	int width, height;
+};
+
+int omx_init(struct omx_state* st);
+void omx_deinit(struct omx_state* st);
+
+int omx_display_input_buffer(struct omx_state* st,
+	void** pbuf, uint32_t* plen);
+int omx_display_flush_buffer(struct omx_state* st);
+
+int omx_display_enable(struct omx_state* st,
+	int width, int height, int stride);
+void omx_display_disable(struct omx_state* st);