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-rw-r--r--frame.c68
1 files changed, 68 insertions, 0 deletions
diff --git a/frame.c b/frame.c
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index 0000000..2e008ed
--- /dev/null
+++ b/frame.c
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+/*
+ * Copyright (C) 2023 Mikhail Burakov. This file is part of receiver.
+ *
+ * receiver 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.
+ *
+ * receiver 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 receiver. If not, see <https://www.gnu.org/licenses/>.
+ */
+
+#include "frame.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "util.h"
+
+struct Frame* FrameCreate(uint32_t width, uint32_t height, uint32_t fourcc,
+ size_t nplanes, const struct FramePlane* planes) {
+ struct AUTO(Frame)* frame = malloc(sizeof(struct Frame));
+ if (!frame) {
+ LOG("Failed to allocate frame (%s)", strerror(errno));
+ return NULL;
+ }
+ *frame = (struct Frame){
+ .width = width,
+ .height = height,
+ .fourcc = fourcc,
+ .nplanes = nplanes,
+ .planes[0] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+ .planes[1] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+ .planes[2] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+ .planes[3] = {.dmabuf_fd = -1, .pitch = 0, .offset = 0, .modifier = 0},
+ };
+
+ for (size_t i = 0; i < nplanes; i++) {
+ frame->planes[i] = (struct FramePlane){
+ .dmabuf_fd = dup(planes[i].dmabuf_fd),
+ .pitch = planes[i].pitch,
+ .offset = planes[i].offset,
+ .modifier = planes[i].modifier,
+ };
+ if (frame->planes[i].dmabuf_fd == -1) {
+ LOG("Failed to dup dmabuf fd (%s)", strerror(errno));
+ return NULL;
+ }
+ }
+
+ return RELEASE(frame);
+}
+
+void FrameDestroy(struct Frame** frame) {
+ if (!frame || !*frame) return;
+ for (size_t i = (*frame)->nplanes; i; i--) {
+ if ((*frame)->planes[i].dmabuf_fd != -1)
+ close((*frame)->planes[i].dmabuf_fd);
+ }
+}