Add colorspace conversion facilities to video pipeline

1 files changed, 74 insertions, 0 deletions

diff --git a/encode_context.c b/encode_context.c
new file mode 100644
index 0000000..353c3fa
--- /dev/null
+++ b/encode_context.c
@@ -0,0 +1,74 @@
+/*
+ * Copyright (C) 2024 Mikhail Burakov. This file is part of streamer.
+ *
+ * streamer is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * streamer is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with streamer.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "encode_context.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <va/va.h>
+#include <va/va_drm.h>
+#include <va/va_drmcommon.h>
+
+#include "io_context.h"
+#include "util.h"
+
+struct EncodeContext {
+  struct IoContext* io_context;
+  size_t width;
+  size_t height;
+};
+
+struct EncodeContext* EncodeContextCreate(struct IoContext* io_context,
+                                          uint32_t width, uint32_t height) {
+  LOG("Initializing encoder context for %ux%u resolution", width, height);
+  struct EncodeContext* encode_context = malloc(sizeof(struct EncodeContext));
+  if (!encode_context) {
+    LOG("Failed to allocate encode context (%s)", strerror(errno));
+    return NULL;
+  }
+
+  *encode_context = (struct EncodeContext){
+      .io_context = io_context,
+      .width = width,
+      .height = height,
+  };
+
+  return encode_context;
+}
+
+struct EncodeContextFrame* EncodeContextDequeue(
+    struct EncodeContext* encode_context) {
+  (void)encode_context;
+  // TODO(mburakov): Implement this!
+  return NULL;
+}
+
+bool EncodeContextQueue(struct EncodeContext* encode_context,
+                        struct EncodeContextFrame* encode_context_frame,
+                        bool encode) {
+  (void)encode_context;
+  (void)encode_context_frame;
+  (void)encode;
+  // TODO(mburakov): Implement this!
+  return true;
+}
+
+void EncodeContextDestroy(struct EncodeContext* encode_context) {
+  free(encode_context);
+}