Author | Tokens | Token Proportion | Commits | Commit Proportion |
---|---|---|---|---|
Vandana BN | 414 | 49.82% | 1 | 9.09% |
Hans Verkuil | 393 | 47.29% | 7 | 63.64% |
Junghak Sung | 14 | 1.68% | 1 | 9.09% |
Peilin Ye | 8 | 0.96% | 1 | 9.09% |
Lad Prabhakar | 2 | 0.24% | 1 | 9.09% |
Total | 831 | 11 |
// SPDX-License-Identifier: GPL-2.0-only /* * vivid-meta-out.c - meta output support functions. */ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/videodev2.h> #include <media/v4l2-common.h> #include <linux/usb/video.h> #include "vivid-core.h" #include "vivid-kthread-out.h" #include "vivid-meta-out.h" static int meta_out_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], struct device *alloc_devs[]) { struct vivid_dev *dev = vb2_get_drv_priv(vq); unsigned int size = sizeof(struct vivid_meta_out_buf); if (!vivid_is_webcam(dev)) return -EINVAL; if (*nplanes) { if (sizes[0] < size) return -EINVAL; } else { sizes[0] = size; } *nplanes = 1; return 0; } static int meta_out_buf_prepare(struct vb2_buffer *vb) { struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); unsigned int size = sizeof(struct vivid_meta_out_buf); dprintk(dev, 1, "%s\n", __func__); if (dev->buf_prepare_error) { /* * Error injection: test what happens if buf_prepare() returns * an error. */ dev->buf_prepare_error = false; return -EINVAL; } if (vb2_plane_size(vb, 0) < size) { dprintk(dev, 1, "%s data will not fit into plane (%lu < %u)\n", __func__, vb2_plane_size(vb, 0), size); return -EINVAL; } vb2_set_plane_payload(vb, 0, size); return 0; } static void meta_out_buf_queue(struct vb2_buffer *vb) { struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb); struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); struct vivid_buffer *buf = container_of(vbuf, struct vivid_buffer, vb); dprintk(dev, 1, "%s\n", __func__); spin_lock(&dev->slock); list_add_tail(&buf->list, &dev->meta_out_active); spin_unlock(&dev->slock); } static int meta_out_start_streaming(struct vb2_queue *vq, unsigned int count) { struct vivid_dev *dev = vb2_get_drv_priv(vq); int err; dprintk(dev, 1, "%s\n", __func__); dev->meta_out_seq_count = 0; if (dev->start_streaming_error) { dev->start_streaming_error = false; err = -EINVAL; } else { err = vivid_start_generating_vid_out(dev, &dev->meta_out_streaming); } if (err) { struct vivid_buffer *buf, *tmp; list_for_each_entry_safe(buf, tmp, &dev->meta_out_active, list) { list_del(&buf->list); vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_QUEUED); } } return err; } /* abort streaming and wait for last buffer */ static void meta_out_stop_streaming(struct vb2_queue *vq) { struct vivid_dev *dev = vb2_get_drv_priv(vq); dprintk(dev, 1, "%s\n", __func__); vivid_stop_generating_vid_out(dev, &dev->meta_out_streaming); } static void meta_out_buf_request_complete(struct vb2_buffer *vb) { struct vivid_dev *dev = vb2_get_drv_priv(vb->vb2_queue); v4l2_ctrl_request_complete(vb->req_obj.req, &dev->ctrl_hdl_meta_out); } const struct vb2_ops vivid_meta_out_qops = { .queue_setup = meta_out_queue_setup, .buf_prepare = meta_out_buf_prepare, .buf_queue = meta_out_buf_queue, .start_streaming = meta_out_start_streaming, .stop_streaming = meta_out_stop_streaming, .buf_request_complete = meta_out_buf_request_complete, .wait_prepare = vb2_ops_wait_prepare, .wait_finish = vb2_ops_wait_finish, }; int vidioc_enum_fmt_meta_out(struct file *file, void *priv, struct v4l2_fmtdesc *f) { struct vivid_dev *dev = video_drvdata(file); if (!vivid_is_webcam(dev)) return -EINVAL; if (f->index > 0) return -EINVAL; f->type = V4L2_BUF_TYPE_META_OUTPUT; f->pixelformat = V4L2_META_FMT_VIVID; return 0; } int vidioc_g_fmt_meta_out(struct file *file, void *priv, struct v4l2_format *f) { struct vivid_dev *dev = video_drvdata(file); struct v4l2_meta_format *meta = &f->fmt.meta; if (!vivid_is_webcam(dev) || !dev->has_meta_out) return -EINVAL; meta->dataformat = V4L2_META_FMT_VIVID; meta->buffersize = sizeof(struct vivid_meta_out_buf); return 0; } void vivid_meta_out_process(struct vivid_dev *dev, struct vivid_buffer *buf) { struct vivid_meta_out_buf *meta = vb2_plane_vaddr(&buf->vb.vb2_buf, 0); v4l2_ctrl_s_ctrl(dev->brightness, meta->brightness); v4l2_ctrl_s_ctrl(dev->contrast, meta->contrast); v4l2_ctrl_s_ctrl(dev->saturation, meta->saturation); v4l2_ctrl_s_ctrl(dev->hue, meta->hue); dprintk(dev, 2, " %s brightness %u contrast %u saturation %u hue %d\n", __func__, meta->brightness, meta->contrast, meta->saturation, meta->hue); }
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