diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | video-source.c | 62 | ||||
| -rw-r--r-- | video-source.h | 55 |
3 files changed, 119 insertions, 1 deletions
@@ -14,7 +14,8 @@ OBJS := \ stream.o \ uvc.o \ v4l2.o \ - video-buffers.o + video-buffers.o \ + video-source.o all: uvc-gadget diff --git a/video-source.c b/video-source.c new file mode 100644 index 0000000..06092f5 --- /dev/null +++ b/video-source.c @@ -0,0 +1,62 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Abstract video source + * + * Copyright (C) 2018 Laurent Pinchart + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + */ + +#include "video-source.h" + +void video_source_set_buffer_handler(struct video_source *src, + video_source_buffer_handler_t handler, + void *data) +{ + src->handler = handler; + src->handler_data = data; +} + +void video_source_destroy(struct video_source *src) +{ + if (src) + src->ops->destroy(src); +} + +int video_source_set_format(struct video_source *src, + struct v4l2_pix_format *fmt) +{ + return src->ops->set_format(src, fmt); +} + +int video_source_alloc_buffers(struct video_source *src, unsigned int nbufs) +{ + return src->ops->alloc_buffers(src, nbufs); +} + +int video_source_export_buffers(struct video_source *src, + struct video_buffer_set **buffers) +{ + return src->ops->export_buffers(src, buffers); +} + +int video_source_free_buffers(struct video_source *src) +{ + return src->ops->free_buffers(src); +} + +int video_source_stream_on(struct video_source *src) +{ + return src->ops->stream_on(src); +} + +int video_source_stream_off(struct video_source *src) +{ + return src->ops->stream_off(src); +} + +int video_source_queue_buffer(struct video_source *src, + struct video_buffer *buf) +{ + return src->ops->queue_buffer(src, buf); +} diff --git a/video-source.h b/video-source.h new file mode 100644 index 0000000..fffcba3 --- /dev/null +++ b/video-source.h @@ -0,0 +1,55 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ +/* + * Abstract video source + * + * Copyright (C) 2018 Laurent Pinchart + * + * Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + */ +#ifndef __VIDEO_SOURCE_H__ +#define __VIDEO_SOURCE_H__ + +struct v4l2_buffer; +struct v4l2_pix_format; +struct video_buffer; +struct video_buffer_set; +struct video_source; + +struct video_source_ops { + void(*destroy)(struct video_source *src); + int(*set_format)(struct video_source *src, struct v4l2_pix_format *fmt); + int(*alloc_buffers)(struct video_source *src, unsigned int nbufs); + int(*export_buffers)(struct video_source *src, + struct video_buffer_set **buffers); + int(*free_buffers)(struct video_source *src); + int(*stream_on)(struct video_source *src); + int(*stream_off)(struct video_source *src); + int(*queue_buffer)(struct video_source *src, struct video_buffer *buf); +}; + +typedef void(*video_source_buffer_handler_t)(void *, struct video_source *, + struct video_buffer *); + +struct video_source { + const struct video_source_ops *ops; + struct events *events; + video_source_buffer_handler_t handler; + void *handler_data; +}; + +void video_source_set_buffer_handler(struct video_source *src, + video_source_buffer_handler_t handler, + void *data); +void video_source_destroy(struct video_source *src); +int video_source_set_format(struct video_source *src, + struct v4l2_pix_format *fmt); +int video_source_alloc_buffers(struct video_source *src, unsigned int nbufs); +int video_source_export_buffers(struct video_source *src, + struct video_buffer_set **buffers); +int video_source_free_buffers(struct video_source *src); +int video_source_stream_on(struct video_source *src); +int video_source_stream_off(struct video_source *src); +int video_source_queue_buffer(struct video_source *src, + struct video_buffer *buf); + +#endif /* __VIDEO_SOURCE_H__ */ |