Add waltham-transmitter-plugin

This adds the waltham-transmiter-plugin, which is a copy-pasta version
of the wayland-ivi-plugins developed by ADIT-J. It has been split into a
different repository. The major change from the initial version is the
fact that remote output has been completely removed, and it only takes
care of remote input. The renderer side has been moved/migrated into
attic/ directory for further posterity.

Bug-AGL: 3601

Signed-off-by: Marius Vlad <marius.vlad@collabora.com>
Change-Id: Ifc1a6f58567d8b86cbe6e84dc1de79246dd95435

1 files changed, 281 insertions, 0 deletions

diff --git a/attic/waltham-renderer/waltham-renderer.c b/attic/waltham-renderer/waltham-renderer.c
new file mode 100644
index 0000000..cda354e
--- /dev/null
+++ b/attic/waltham-renderer/waltham-renderer.c
@@ -0,0 +1,281 @@
+/*
+ * Copyright (C) 2017 Advanced Driver Information Technology GmbH, Robert Bosch GmbH, Robert Bosch Car Multimedia GmbH, DENSO Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include <stdlib.h>
+#include <assert.h>
+#include <string.h>
+
+#include <gst/gst.h>
+#include <gst/video/gstvideometa.h>
+#include <gst/allocators/gstdmabuf.h>
+#include <gst/app/gstappsrc.h>
+
+#include <libweston/libweston.h>
+
+#include "transmitter_api.h"
+#include "waltham-renderer.h"
+#include "plugin.h"
+
+struct waltham_renderer {
+	struct renderer base;
+};
+
+struct GstAppContext {
+	GMainLoop *loop;
+	GstBus *bus;
+	GstElement *pipeline;
+	GstElement *appsrc;
+	GstBuffer *gstbuffer;
+};
+
+gboolean bus_message(GstBus *bus, GstMessage *message, gpointer p)
+{
+	struct GstAppContext *gstctx = p;
+
+	switch( GST_MESSAGE_TYPE(message)) {
+        case GST_MESSAGE_ERROR:
+	{
+		GError *err;
+		gchar *debug;
+
+		gst_message_parse_error(message, &err, &debug);
+		g_print("ERROR: %s\n", err->message);
+
+		g_error_free(err);
+		g_free(debug);
+		g_main_loop_quit(gstctx->loop);
+
+		return false;
+		break;
+	}
+
+	case GST_MESSAGE_STATE_CHANGED:
+	{
+		GstState oldstate, newstate;
+
+		gst_message_parse_state_changed(message, &oldstate, &newstate, NULL);
+		switch (newstate){
+		case GST_STATE_PAUSED:
+			fprintf(stderr, "%s: state is paused\n", GST_MESSAGE_SRC_NAME(message));
+			break;
+		case GST_STATE_READY:
+			fprintf(stderr, "%s: state is ready\n", GST_MESSAGE_SRC_NAME(message));
+			break;
+		case GST_STATE_VOID_PENDING:
+			fprintf(stderr, "%s: state is pending\n", GST_MESSAGE_SRC_NAME(message));
+			break;
+		case GST_STATE_NULL:
+			fprintf(stderr, "%s: state is NULL\n", GST_MESSAGE_SRC_NAME(message));
+			break;
+		case GST_STATE_PLAYING:
+			fprintf(stderr, "%s: state is playing\n", GST_MESSAGE_SRC_NAME(message));
+			break;
+		}
+		break;
+	}
+        default:
+		fprintf(stderr, "Unhandled message\n");
+		break;
+	}
+
+	return true;
+}
+
+static int
+gst_pipe_init(struct weston_transmitter_output *output, struct gst_settings *settings)
+{
+	struct GstAppContext *gstctx;
+	GstCaps *caps;
+	GError *gerror = NULL;
+	FILE * pFile;
+	size_t lSize;
+	char * pipe = NULL;
+	size_t res;
+
+	gstctx=zalloc(sizeof (*gstctx));
+	if(!gstctx){
+		weston_log("Enable to allocate memory\n");
+		return -1;
+	}
+
+	/* create gstreamer pipeline */
+	gst_init(NULL, NULL);
+	gstctx->loop = g_main_loop_new(NULL, FALSE);
+
+	/* read pipeline from file */
+	pFile = fopen("/etc/xdg/weston/transmitter_pipeline.cfg" , "rb");
+	if (pFile==NULL) {
+		weston_log("File open error\n");
+		return -1;
+	}
+
+	/* obtain file size */
+	fseek (pFile , 0 , SEEK_END);
+	lSize = ftell (pFile);
+	rewind (pFile);
+
+	/* allocate memory to contain the whole file: */
+	pipe = zalloc (sizeof(char) * lSize);
+	if (pipe == NULL) {
+		weston_log("Cannot allocate memory\n");
+		return -1;
+	}
+
+	/* copy the file into the buffer: */
+	res = fread (pipe,1,lSize,pFile);
+	if (res != lSize)
+	{
+		weston_log("File read error\n");
+		return -1;
+	}
+
+	/* close file */
+	fclose(pFile);
+	weston_log("Parsing GST pipeline:%s",pipe);
+	gstctx->pipeline = gst_parse_launch(pipe, &gerror);
+	free(pipe);
+	if(!gstctx->pipeline)
+		weston_log("Could not create gstreamer pipeline.\n");
+
+	gstctx->bus = gst_pipeline_get_bus((GstPipeline*)((void*)gstctx->pipeline));
+	gst_bus_add_watch(gstctx->bus, bus_message, &gstctx);
+
+	//gstctx->appsrc = (GstAppSrc*) gst_bin_get_by_name(GST_BIN(gstctx->pipeline), "src");
+	gstctx->appsrc = gst_bin_get_by_name(GST_BIN(gstctx->pipeline), "src");
+	if (!gstctx->appsrc)
+		return -1;
+
+	caps = gst_caps_new_simple("video/x-raw",
+				   "format", G_TYPE_STRING, "BGRx",
+				   "width", G_TYPE_INT, settings->width,
+				   "height", G_TYPE_INT, settings->height,
+				   NULL);
+	if (!caps)
+		return -1;
+
+	g_object_set(G_OBJECT(gstctx->appsrc),
+		     "caps", caps,
+		     "stream-type", 0,
+		     "format", GST_FORMAT_TIME,
+		     "is-live", TRUE,
+		     NULL);
+	gst_caps_unref(caps);
+
+	gst_element_set_state((GstElement*)((void*)gstctx->pipeline), GST_STATE_PLAYING);
+	output->renderer->ctx = gstctx;
+
+	weston_log("Gstreamer pipeline inited\n");
+
+	return 0;
+}
+
+static int
+recorder_enable(struct weston_transmitter_output *output)
+{
+	struct gst_settings *settings;
+
+	struct weston_transmitter_remote* remote = output->remote;
+
+	/*
+	 * Limitation:
+	 * Hard coding bitrate and crop params.
+	 * In case of gst-recorder case these were taken from weston.ini
+	 */
+	int32_t bitrate = 3000000;
+
+	settings = malloc(sizeof(* settings));
+	settings->ip = remote->addr;
+
+	settings->port = atoi(remote->port);
+
+	settings->bitrate = bitrate;
+	settings->width = output->renderer->surface_width;
+	settings->height = output->renderer->surface_height;
+
+	weston_log("gst-setting are :-->\n");
+	weston_log("ip = %s \n",settings->ip);
+	weston_log("port = %d \n",settings->port);
+	weston_log("bitrate = %d \n",settings->bitrate);
+	weston_log("width = %d \n",settings->width);
+	weston_log("height = %d \n",settings->height);
+
+	gst_pipe_init(output, settings);
+
+	weston_log("Enabling renderer display\n");
+
+	return 0;
+}
+
+static void waltham_renderer_repaint_output(struct weston_transmitter_output *output)
+{
+	GstBuffer *gstbuffer;
+	GstMemory *mem;
+	GstAllocator *allocator;
+	int stride = output->renderer->buf_stride;
+	gsize offset = 0;
+
+	if (!output->renderer->recorder_enabled) {
+		recorder_enable(output);
+		output->renderer->recorder_enabled = 1;
+	}
+
+	gstbuffer = gst_buffer_new();
+	allocator = gst_dmabuf_allocator_new();
+	mem = gst_dmabuf_allocator_alloc(allocator, output->renderer->dmafd,
+					 stride * output->renderer->surface_height);
+	gst_buffer_append_memory(gstbuffer, mem);
+	gst_buffer_add_video_meta_full(gstbuffer,
+				       GST_VIDEO_FRAME_FLAG_NONE,
+				       GST_VIDEO_FORMAT_BGRx,
+				       output->renderer->surface_width,
+				       output->renderer->surface_height,
+				       1,
+				       &offset,
+				       &stride);
+
+	gst_app_src_push_buffer(GST_APP_SRC(output->renderer->ctx->appsrc), gstbuffer);
+	gst_object_unref(allocator);
+}
+
+static int
+waltham_renderer_display_create(struct weston_transmitter_output *output)
+{
+	struct waltham_renderer *wth_renderer;
+
+	wth_renderer = zalloc(sizeof *wth_renderer);
+	if (wth_renderer == NULL)
+		return -1;
+
+	wth_renderer->base.repaint_output = waltham_renderer_repaint_output;
+	output->renderer = &wth_renderer->base;
+
+	weston_log("Created renderer display\n");
+
+	return 0;
+}
+
+WL_EXPORT struct waltham_renderer_interface waltham_renderer_interface = {
+		.display_create = waltham_renderer_display_create
+};