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-rw-r--r--include/uvcgadget/video-source.h13
-rw-r--r--lib/jpg-source.c1
-rw-r--r--lib/libcamera-source.cpp1
-rw-r--r--lib/slideshow-source.c1
-rw-r--r--lib/stream.c18
-rw-r--r--lib/test-source.c1
-rw-r--r--lib/v4l2-source.c1
7 files changed, 30 insertions, 6 deletions
diff --git a/include/uvcgadget/video-source.h b/include/uvcgadget/video-source.h
index b1a3cf4..f888ce4 100644
--- a/include/uvcgadget/video-source.h
+++ b/include/uvcgadget/video-source.h
@@ -32,11 +32,24 @@ struct video_source_ops {
typedef void(*video_source_buffer_handler_t)(void *, struct video_source *,
struct video_buffer *);
+/*
+ * video_source_type - Enumeration of the different kinds of video source
+ * @VIDEO_SOURCE_DMABUF A source that can share data with the sink via a
+ * DMA file descriptor.
+ * @VIDEO_SOURCE_STATIC A source that draws data from an unchanging
+ * buffer such as a .jpg file
+ */
+enum video_source_type {
+ VIDEO_SOURCE_DMABUF,
+ VIDEO_SOURCE_STATIC,
+};
+
struct video_source {
const struct video_source_ops *ops;
struct events *events;
video_source_buffer_handler_t handler;
void *handler_data;
+ enum video_source_type type;
};
void video_source_set_buffer_handler(struct video_source *src,
diff --git a/lib/jpg-source.c b/lib/jpg-source.c
index c95d76c..1cc0052 100644
--- a/lib/jpg-source.c
+++ b/lib/jpg-source.c
@@ -149,6 +149,7 @@ struct video_source *jpg_video_source_create(const char *img_path)
memset(src, 0, sizeof *src);
src->src.ops = &jpg_source_ops;
+ src->src.type = VIDEO_SOURCE_STATIC;
fd = open(img_path, O_RDONLY);
if (fd == -1) {
diff --git a/lib/libcamera-source.cpp b/lib/libcamera-source.cpp
index c53c915..7b4e212 100644
--- a/lib/libcamera-source.cpp
+++ b/lib/libcamera-source.cpp
@@ -390,6 +390,7 @@ struct video_source *libcamera_source_create(const char *devname)
}
src->src.ops = &libcamera_source_ops;
+ src->src.type = VIDEO_SOURCE_DMABUF;
src->cm = std::make_unique<CameraManager>();
src->cm->start();
diff --git a/lib/slideshow-source.c b/lib/slideshow-source.c
index 42a42a9..6eeab72 100644
--- a/lib/slideshow-source.c
+++ b/lib/slideshow-source.c
@@ -367,6 +367,7 @@ struct video_source *slideshow_video_source_create(const char *img_dir)
memset(src, 0, sizeof *src);
src->src.ops = &slideshow_source_ops;
+ src->src.type = VIDEO_SOURCE_STATIC;
strncpy(src->img_dir, img_dir, sizeof(src->img_dir));
diff --git a/lib/stream.c b/lib/stream.c
index 63ccb1b..4a562a5 100644
--- a/lib/stream.c
+++ b/lib/stream.c
@@ -7,6 +7,7 @@
* Contact: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
*/
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -183,10 +184,19 @@ static int uvc_stream_start(struct uvc_stream *stream)
{
printf("Starting video stream.\n");
- if (stream->src->ops->alloc_buffers)
+ switch (stream->src->type) {
+ case VIDEO_SOURCE_DMABUF:
+ video_source_set_buffer_handler(stream->src, uvc_stream_source_process,
+ stream);
return uvc_stream_start_alloc(stream);
- else
+ case VIDEO_SOURCE_STATIC:
return uvc_stream_start_no_alloc(stream);
+ default:
+ fprintf(stderr, "invalid video source type\n");
+ break;
+ }
+
+ return -EINVAL;
}
static int uvc_stream_stop(struct uvc_stream *stream)
@@ -288,8 +298,4 @@ void uvc_stream_set_video_source(struct uvc_stream *stream,
struct video_source *src)
{
stream->src = src;
-
- if (stream->src->ops->alloc_buffers)
- video_source_set_buffer_handler(src, uvc_stream_source_process,
- stream);
}
diff --git a/lib/test-source.c b/lib/test-source.c
index 743d8b3..40a1f69 100644
--- a/lib/test-source.c
+++ b/lib/test-source.c
@@ -134,6 +134,7 @@ struct video_source *test_video_source_create()
memset(src, 0, sizeof *src);
src->src.ops = &test_source_ops;
+ src->src.type = VIDEO_SOURCE_STATIC;
return &src->src;
}
diff --git a/lib/v4l2-source.c b/lib/v4l2-source.c
index 8cb9aef..22fe3da 100644
--- a/lib/v4l2-source.c
+++ b/lib/v4l2-source.c
@@ -170,6 +170,7 @@ struct video_source *v4l2_video_source_create(const char *devname)
memset(src, 0, sizeof *src);
src->src.ops = &v4l2_source_ops;
+ src->src.type = VIDEO_SOURCE_DMABUF;
src->vdev = v4l2_open(devname);
if (!src->vdev) {