From df651c5b397a4b6648695cdf725a8243ff512dcd Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Sat, 9 Jun 2018 12:11:25 +0300 Subject: v4l2: Extract video buffer structure to separate file The v4l2_video_buffer structure describes a video buffer. It is used by the v4l2_device class only, but isn't otherwise tied to V4L2. To prepare for non-V4L2 video sources, extract it to a separate file and rename it to video_buffer. At the same time, add a new video_buffer_set structure to represent as set of video buffers. Signed-off-by: Laurent Pinchart --- video-buffers.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) create mode 100644 video-buffers.c (limited to 'video-buffers.c') diff --git a/video-buffers.c b/video-buffers.c new file mode 100644 index 0000000..f5dc6ec --- /dev/null +++ b/video-buffers.c @@ -0,0 +1,40 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Video buffers + * + * Copyright (C) 2018 Laurent Pinchart + * + * Contact: Laurent Pinchart + */ + +#include "video-buffers.h" + +#include +#include + +struct video_buffer_set *video_buffer_set_new(unsigned int nbufs) +{ + struct video_buffer_set *buffers; + + buffers = malloc(sizeof *buffers); + if (!buffers) + return NULL; + + buffers->nbufs = nbufs; + buffers->buffers = calloc(nbufs, sizeof *buffers->buffers); + if (!buffers->buffers) { + free(buffers); + return NULL; + } + + return buffers; +} + +void video_buffer_set_delete(struct video_buffer_set *buffers) +{ + if (!buffers) + return; + + free(buffers->buffers); + free(buffers); +} -- cgit v1.2.3