diff options
Diffstat (limited to 'drivers/staging/media/rpivid/rpivid_dec.c')
| -rw-r--r-- | drivers/staging/media/rpivid/rpivid_dec.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/drivers/staging/media/rpivid/rpivid_dec.c b/drivers/staging/media/rpivid/rpivid_dec.c new file mode 100644 index 000000000000..d81aa46de017 --- /dev/null +++ b/drivers/staging/media/rpivid/rpivid_dec.c @@ -0,0 +1,79 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Raspberry Pi HEVC driver + * + * Copyright (C) 2020 Raspberry Pi (Trading) Ltd + * + * Based on the Cedrus VPU driver, that is: + * + * Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com> + * Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com> + * Copyright (C) 2018 Bootlin + */ + +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-event.h> +#include <media/v4l2-mem2mem.h> + +#include "rpivid.h" +#include "rpivid_dec.h" + +void rpivid_device_run(void *priv) +{ + struct rpivid_ctx *ctx = priv; + struct rpivid_dev *dev = ctx->dev; + struct rpivid_run run = {}; + struct media_request *src_req; + + run.src = v4l2_m2m_next_src_buf(ctx->fh.m2m_ctx); + run.dst = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); + + if (!run.src || !run.dst) { + v4l2_err(&dev->v4l2_dev, "%s: Missing buffer: src=%p, dst=%p\n", + __func__, run.src, run.dst); + /* We are stuffed - this probably won't dig us out of our + * current situation but it is better than nothing + */ + v4l2_m2m_buf_done_and_job_finish(dev->m2m_dev, ctx->fh.m2m_ctx, + VB2_BUF_STATE_ERROR); + return; + } + + /* Apply request(s) controls if needed. */ + src_req = run.src->vb2_buf.req_obj.req; + + if (src_req) + v4l2_ctrl_request_setup(src_req, &ctx->hdl); + + switch (ctx->src_fmt.pixelformat) { + case V4L2_PIX_FMT_HEVC_SLICE: + run.h265.sps = + rpivid_find_control_data(ctx, + V4L2_CID_MPEG_VIDEO_HEVC_SPS); + run.h265.pps = + rpivid_find_control_data(ctx, + V4L2_CID_MPEG_VIDEO_HEVC_PPS); + run.h265.slice_params = + rpivid_find_control_data(ctx, + V4L2_CID_MPEG_VIDEO_HEVC_SLICE_PARAMS); + run.h265.scaling_matrix = + rpivid_find_control_data(ctx, + V4L2_CID_MPEG_VIDEO_HEVC_SCALING_MATRIX); + break; + + default: + break; + } + + v4l2_m2m_buf_copy_metadata(run.src, run.dst, true); + + dev->dec_ops->setup(ctx, &run); + + /* Complete request(s) controls if needed. */ + + if (src_req) + v4l2_ctrl_request_complete(src_req, &ctx->hdl); + + dev->dec_ops->trigger(ctx); +} |