pipewire/spa/plugins/v4l2/v4l2.h
Wim Taymans c44d655516 v4l2: use 32 buffers max
We don't yet probe the number of available buffers and so we might claim
to support 64 buffers but then fail to allocate that many buffers in
_use_buffers().
2019-05-27 15:35:20 +02:00

37 lines
1.5 KiB
C

/* Spa V4l2 support
*
* Copyright © 2018 Wim Taymans
*
* 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 <errno.h>
struct spa_v4l2_device {
struct spa_log *log;
int fd;
struct v4l2_capability cap;
unsigned int active:1;
unsigned int have_format:1;
};
int spa_v4l2_open(struct spa_v4l2_device *dev, const char *path);
int spa_v4l2_close(struct spa_v4l2_device *dev);
int spa_v4l2_is_capture(struct spa_v4l2_device *dev);