diff options
| author | Daniel Scally <dan.scally@ideasonboard.com> | 2023-01-13 16:27:10 +0000 |
|---|---|---|
| committer | Daniel Scally <dan.scally@ideasonboard.com> | 2023-01-16 13:10:16 +0000 |
| commit | afd7ad5f9dbef7f31162b9a49b9f85c0a309a3a0 (patch) | |
| tree | 23899ca2c135c2245ef3f6821227bb7bfad8923e | |
| parent | 4d9897c5aa5376f89e0d5ed1534536f680939e0d (diff) | |
lib/video-source: Add video_source_import_buffers
We need to be able to place encoded data into the sink device's bufs.
To facilitate that add a video_source operation that allows the source
to import buffers from the sink.
Add a .import_buffers() callback so that the libcamera-source can
access a sink's buffers.
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: Daniel Scally <dan.scally@ideasonboard.com>
| -rw-r--r-- | include/uvcgadget/video-source.h | 4 | ||||
| -rw-r--r-- | lib/libcamera-source.cpp | 12 | ||||
| -rw-r--r-- | lib/video-source.c | 6 |
3 files changed, 22 insertions, 0 deletions
diff --git a/include/uvcgadget/video-source.h b/include/uvcgadget/video-source.h index f888ce4..61aeaf7 100644 --- a/include/uvcgadget/video-source.h +++ b/include/uvcgadget/video-source.h @@ -22,6 +22,8 @@ struct video_source_ops { int(*alloc_buffers)(struct video_source *src, unsigned int nbufs); int(*export_buffers)(struct video_source *src, struct video_buffer_set **buffers); + int(*import_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); @@ -62,6 +64,8 @@ int video_source_set_frame_rate(struct video_source *src, unsigned int fps); 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_import_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); diff --git a/lib/libcamera-source.cpp b/lib/libcamera-source.cpp index 7b4e212..4e22688 100644 --- a/lib/libcamera-source.cpp +++ b/lib/libcamera-source.cpp @@ -227,6 +227,17 @@ static int libcamera_source_export_buffers(struct video_source *s, return 0; } +static int libcamera_source_import_buffers(struct video_source *s, + struct video_buffer_set *buffers) +{ + struct libcamera_source *src = to_libcamera_source(s); + + for (unsigned int i = 0; i < buffers->nbufs; i++) + src->buffers.buffers[i].mem = buffers->buffers[i].mem; + + return 0; +} + static int libcamera_source_free_buffers(struct video_source *s) { struct libcamera_source *src = to_libcamera_source(s); @@ -328,6 +339,7 @@ static const struct video_source_ops libcamera_source_ops = { .set_frame_rate = libcamera_source_set_frame_rate, .alloc_buffers = libcamera_source_alloc_buffers, .export_buffers = libcamera_source_export_buffers, + .import_buffers = libcamera_source_import_buffers, .free_buffers = libcamera_source_free_buffers, .stream_on = libcamera_source_stream_on, .stream_off = libcamera_source_stream_off, diff --git a/lib/video-source.c b/lib/video-source.c index 17f008a..78020f2 100644 --- a/lib/video-source.c +++ b/lib/video-source.c @@ -45,6 +45,12 @@ int video_source_export_buffers(struct video_source *src, return src->ops->export_buffers(src, buffers); } +int video_source_import_buffers(struct video_source *src, + struct video_buffer_set *buffers) +{ + return src->ops->import_buffers(src, buffers); +} + int video_source_free_buffers(struct video_source *src) { return src->ops->free_buffers(src); |