claude-noether/libva-v4l2-request-fourier
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Introduce and use dedicated v4l2 helpers to replace inline ioctls

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Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
This commit is contained in:
Paul Kocialkowski
2018-04-24 15:38:23 +02:00
parent 5139aa6731
commit c7f0d7684a
7 changed files with 385 additions and 201 deletions
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src/picture.c
+21 -50
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@@ -41,6 +41,8 @@
#include <linux/videodev2.h>
#include "v4l2.h"
VAStatus SunxiCedrusBeginPicture(VADriverContextP context,
VAContextID context_id, VASurfaceID surface_id)
{
@@ -130,12 +132,10 @@ VAStatus SunxiCedrusEndPicture(VADriverContextP context,
(struct sunxi_cedrus_driver_data *) context->pDriverData;
struct object_context *context_object;
struct object_surface *surface_object;
struct v4l2_buffer out_buf, cap_buf;
struct v4l2_plane plane[1];
struct v4l2_plane planes[2];
struct v4l2_ext_control ctrl;
struct v4l2_ext_controls ctrls;
struct media_request_new media_request;
void *control_data;
unsigned int control_size;
unsigned int control_id;
int request_fd;
int rc;
@@ -157,64 +157,35 @@ VAStatus SunxiCedrusEndPicture(VADriverContextP context,
request_fd = media_request.fd;
}
memset(plane, 0, sizeof(struct v4l2_plane));
memset(planes, 0, 2 * sizeof(struct v4l2_plane));
memset(&ctrl, 0, sizeof(struct v4l2_ext_control));
memset(&ctrls, 0, sizeof(struct v4l2_ext_controls));
memset(&out_buf, 0, sizeof(out_buf));
out_buf.type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
out_buf.memory = V4L2_MEMORY_MMAP;
out_buf.index = surface_object->input_buf_index;
out_buf.length = 1;
out_buf.m.planes = plane;
out_buf.request_fd = request_fd;
switch (config_object->profile) {
case VAProfileMPEG2Simple:
case VAProfileMPEG2Main:
context_object->mpeg2_frame_hdr.slice_pos = 0;
context_object->mpeg2_frame_hdr.slice_len = driver_data->slice_offset[surface_object->input_buf_index] * 8;
out_buf.m.planes[0].bytesused = driver_data->slice_offset[surface_object->input_buf_index];
ctrl.id = V4L2_CID_MPEG_VIDEO_MPEG2_FRAME_HDR;
ctrl.ptr = &context_object->mpeg2_frame_hdr;
ctrl.size = sizeof(context_object->mpeg2_frame_hdr);
control_id = V4L2_CID_MPEG_VIDEO_MPEG2_FRAME_HDR;
control_data = &context_object->mpeg2_frame_hdr;
control_size = sizeof(context_object->mpeg2_frame_hdr);
break;
default:
out_buf.m.planes[0].bytesused = 0;
ctrl.id = V4L2_CID_MPEG_VIDEO_MPEG2_FRAME_HDR;
ctrl.ptr = NULL;
ctrl.size = 0;
break;
return VA_STATUS_ERROR_UNSUPPORTED_PROFILE;
}
rc = v4l2_set_control(driver_data->mem2mem_fd, request_fd, control_id, control_data, control_size);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
rc = v4l2_queue_buffer(driver_data->mem2mem_fd, request_fd, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE, surface_object->output_buf_index, 0);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
rc = v4l2_queue_buffer(driver_data->mem2mem_fd, request_fd, V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE, surface_object->input_buf_index, driver_data->slice_offset[surface_object->input_buf_index]);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
driver_data->slice_offset[surface_object->input_buf_index] = 0;
memset(&cap_buf, 0, sizeof(cap_buf));
cap_buf.type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
cap_buf.memory = V4L2_MEMORY_MMAP;
cap_buf.index = surface_object->output_buf_index;
cap_buf.length = 2;
cap_buf.m.planes = planes;
ctrls.controls = &ctrl;
ctrls.count = 1;
ctrls.request_fd = request_fd;
rc = ioctl(driver_data->mem2mem_fd, VIDIOC_S_EXT_CTRLS, &ctrls);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
rc = ioctl(driver_data->mem2mem_fd, VIDIOC_QBUF, &cap_buf);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
rc = ioctl(driver_data->mem2mem_fd, VIDIOC_QBUF, &out_buf);
if (rc < 0)
return VA_STATUS_ERROR_OPERATION_FAILED;
context_object->render_surface_id = VA_INVALID_ID;
return VA_STATUS_SUCCESS;