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// SPDX-License-Identifier: GPL-2.0+
/* Driver for virtio video device.
*
* Copyright 2020 OpenSynergy GmbH.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "virtio_video.h"
struct virtio_video_convert_table {
uint32_t virtio_value;
uint32_t v4l2_value;
};
static struct virtio_video_convert_table level_table[] = {
{ VIRTIO_VIDEO_LEVEL_H264_1_0, V4L2_MPEG_VIDEO_H264_LEVEL_1_0 },
{ VIRTIO_VIDEO_LEVEL_H264_1_1, V4L2_MPEG_VIDEO_H264_LEVEL_1_1 },
{ VIRTIO_VIDEO_LEVEL_H264_1_2, V4L2_MPEG_VIDEO_H264_LEVEL_1_2 },
{ VIRTIO_VIDEO_LEVEL_H264_1_3, V4L2_MPEG_VIDEO_H264_LEVEL_1_3 },
{ VIRTIO_VIDEO_LEVEL_H264_2_0, V4L2_MPEG_VIDEO_H264_LEVEL_2_0 },
{ VIRTIO_VIDEO_LEVEL_H264_2_1, V4L2_MPEG_VIDEO_H264_LEVEL_2_1 },
{ VIRTIO_VIDEO_LEVEL_H264_2_2, V4L2_MPEG_VIDEO_H264_LEVEL_2_2 },
{ VIRTIO_VIDEO_LEVEL_H264_3_0, V4L2_MPEG_VIDEO_H264_LEVEL_3_0 },
{ VIRTIO_VIDEO_LEVEL_H264_3_1, V4L2_MPEG_VIDEO_H264_LEVEL_3_1 },
{ VIRTIO_VIDEO_LEVEL_H264_3_2, V4L2_MPEG_VIDEO_H264_LEVEL_3_2 },
{ VIRTIO_VIDEO_LEVEL_H264_4_0, V4L2_MPEG_VIDEO_H264_LEVEL_4_0 },
{ VIRTIO_VIDEO_LEVEL_H264_4_1, V4L2_MPEG_VIDEO_H264_LEVEL_4_1 },
{ VIRTIO_VIDEO_LEVEL_H264_4_2, V4L2_MPEG_VIDEO_H264_LEVEL_4_2 },
{ VIRTIO_VIDEO_LEVEL_H264_5_0, V4L2_MPEG_VIDEO_H264_LEVEL_5_0 },
{ VIRTIO_VIDEO_LEVEL_H264_5_1, V4L2_MPEG_VIDEO_H264_LEVEL_5_1 },
{ 0 },
};
uint32_t virtio_video_level_to_v4l2(uint32_t level)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(level_table); idx++) {
if (level_table[idx].virtio_value == level)
return level_table[idx].v4l2_value;
}
return 0;
}
uint32_t virtio_video_v4l2_level_to_virtio(uint32_t v4l2_level)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(level_table); idx++) {
if (level_table[idx].v4l2_value == v4l2_level)
return level_table[idx].virtio_value;
}
return 0;
}
static struct virtio_video_convert_table profile_table[] = {
{ VIRTIO_VIDEO_PROFILE_H264_BASELINE,
V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE },
{ VIRTIO_VIDEO_PROFILE_H264_MAIN, V4L2_MPEG_VIDEO_H264_PROFILE_MAIN },
{ VIRTIO_VIDEO_PROFILE_H264_EXTENDED,
V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED },
{ VIRTIO_VIDEO_PROFILE_H264_HIGH, V4L2_MPEG_VIDEO_H264_PROFILE_HIGH },
{ VIRTIO_VIDEO_PROFILE_H264_HIGH10PROFILE,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10 },
{ VIRTIO_VIDEO_PROFILE_H264_HIGH422PROFILE,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422},
{ VIRTIO_VIDEO_PROFILE_H264_HIGH444PREDICTIVEPROFILE,
V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE },
{ VIRTIO_VIDEO_PROFILE_H264_SCALABLEBASELINE,
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE },
{ VIRTIO_VIDEO_PROFILE_H264_SCALABLEHIGH,
V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH },
{ VIRTIO_VIDEO_PROFILE_H264_STEREOHIGH,
V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH },
{ VIRTIO_VIDEO_PROFILE_H264_MULTIVIEWHIGH,
V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH },
{ 0 },
};
uint32_t virtio_video_profile_to_v4l2(uint32_t profile)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(profile_table); idx++) {
if (profile_table[idx].virtio_value == profile)
return profile_table[idx].v4l2_value;
}
return 0;
}
uint32_t virtio_video_v4l2_profile_to_virtio(uint32_t v4l2_profile)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(profile_table); idx++) {
if (profile_table[idx].v4l2_value == v4l2_profile)
return profile_table[idx].virtio_value;
}
return 0;
}
static struct virtio_video_convert_table format_table[] = {
{ VIRTIO_VIDEO_FORMAT_ARGB8888, V4L2_PIX_FMT_ARGB32 },
{ VIRTIO_VIDEO_FORMAT_BGRA8888, V4L2_PIX_FMT_ABGR32 },
{ VIRTIO_VIDEO_FORMAT_RGBA8888, V4L2_PIX_FMT_RGB32 },
{ VIRTIO_VIDEO_FORMAT_NV12, V4L2_PIX_FMT_NV12 },
{ VIRTIO_VIDEO_FORMAT_YUV420, V4L2_PIX_FMT_YUV420 },
{ VIRTIO_VIDEO_FORMAT_YVU420, V4L2_PIX_FMT_YVU420 },
{ VIRTIO_VIDEO_FORMAT_YUV422, V4L2_PIX_FMT_YUYV },
{ VIRTIO_VIDEO_FORMAT_MPEG2, V4L2_PIX_FMT_MPEG2 },
{ VIRTIO_VIDEO_FORMAT_MPEG4, V4L2_PIX_FMT_MPEG4 },
{ VIRTIO_VIDEO_FORMAT_H264, V4L2_PIX_FMT_H264 },
{ VIRTIO_VIDEO_FORMAT_HEVC, V4L2_PIX_FMT_HEVC },
{ VIRTIO_VIDEO_FORMAT_VP8, V4L2_PIX_FMT_VP8 },
{ VIRTIO_VIDEO_FORMAT_VP9, V4L2_PIX_FMT_VP9 },
{ 0 },
};
uint32_t virtio_video_format_to_v4l2(uint32_t format)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(format_table); idx++) {
if (format_table[idx].virtio_value == format)
return format_table[idx].v4l2_value;
}
return 0;
}
uint32_t virtio_video_v4l2_format_to_virtio(uint32_t v4l2_format)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(format_table); idx++) {
if (format_table[idx].v4l2_value == v4l2_format)
return format_table[idx].virtio_value;
}
return 0;
}
static struct virtio_video_convert_table control_table[] = {
{ VIRTIO_VIDEO_CONTROL_BITRATE, V4L2_CID_MPEG_VIDEO_BITRATE },
{ VIRTIO_VIDEO_CONTROL_PROFILE, V4L2_CID_MPEG_VIDEO_H264_PROFILE },
{ VIRTIO_VIDEO_CONTROL_LEVEL, V4L2_CID_MPEG_VIDEO_H264_LEVEL },
{ 0 },
};
uint32_t virtio_video_control_to_v4l2(uint32_t control)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(control_table); idx++) {
if (control_table[idx].virtio_value == control)
return control_table[idx].v4l2_value;
}
return 0;
}
uint32_t virtio_video_v4l2_control_to_virtio(uint32_t v4l2_control)
{
size_t idx;
for (idx = 0; idx < ARRAY_SIZE(control_table); idx++) {
if (control_table[idx].v4l2_value == v4l2_control)
return control_table[idx].virtio_value;
}
return 0;
}
uint32_t virtio_video_get_format_from_virtio_profile(uint32_t virtio_profile)
{
if (virtio_profile >= VIRTIO_VIDEO_PROFILE_H264_MIN &&
virtio_profile <= VIRTIO_VIDEO_PROFILE_H264_MAX)
return VIRTIO_VIDEO_FORMAT_H264;
else if (virtio_profile >= VIRTIO_VIDEO_PROFILE_HEVC_MIN &&
virtio_profile <= VIRTIO_VIDEO_PROFILE_HEVC_MAX)
return VIRTIO_VIDEO_FORMAT_HEVC;
else if (virtio_profile >= VIRTIO_VIDEO_PROFILE_VP8_MIN &&
virtio_profile <= VIRTIO_VIDEO_PROFILE_VP8_MAX)
return VIRTIO_VIDEO_FORMAT_VP8;
else if (virtio_profile >= VIRTIO_VIDEO_PROFILE_VP9_MIN &&
virtio_profile <= VIRTIO_VIDEO_PROFILE_VP9_MAX)
return VIRTIO_VIDEO_FORMAT_VP9;
return 0;
}
struct video_format *virtio_video_find_video_format(struct list_head *fmts_list,
uint32_t format)
{
struct video_format *fmt = NULL;
list_for_each_entry(fmt, fmts_list, formats_list_entry) {
if (fmt->desc.format == format)
return fmt;
}
return NULL;
}
void virtio_video_format_from_info(struct video_format_info *info,
struct v4l2_pix_format_mplane *pix_mp)
{
int i;
pix_mp->width = info->frame_width;
pix_mp->height = info->frame_height;
pix_mp->field = V4L2_FIELD_NONE;
pix_mp->colorspace = V4L2_COLORSPACE_REC709;
pix_mp->xfer_func = 0;
pix_mp->ycbcr_enc = 0;
pix_mp->quantization = 0;
memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
memset(pix_mp->plane_fmt[0].reserved, 0,
sizeof(pix_mp->plane_fmt[0].reserved));
pix_mp->num_planes = info->num_planes;
pix_mp->pixelformat = info->fourcc_format;
for (i = 0; i < info->num_planes; i++) {
pix_mp->plane_fmt[i].bytesperline =
info->plane_format[i].stride;
pix_mp->plane_fmt[i].sizeimage =
info->plane_format[i].plane_size;
}
}
void virtio_video_format_fill_default_info(struct video_format_info *dst_info,
struct video_format_info *src_info)
{
memcpy(dst_info, src_info, sizeof(*dst_info));
}
void virtio_video_pix_fmt_sp2mp(const struct v4l2_pix_format *pix,
struct v4l2_pix_format_mplane *pix_mp)
{
memset(pix_mp->reserved, 0, sizeof(pix_mp->reserved));
memset(&pix_mp->plane_fmt[0].reserved, 0,
sizeof(pix_mp->plane_fmt[0].reserved));
pix_mp->num_planes = 1;
pix_mp->width = pix->width;
pix_mp->height = pix->height;
pix_mp->pixelformat = pix->pixelformat;
pix_mp->field = pix->field;
pix_mp->plane_fmt[0].bytesperline = pix->bytesperline;
pix_mp->plane_fmt[0].sizeimage = pix->sizeimage;
pix_mp->colorspace = pix->colorspace;
pix_mp->flags = pix->flags;
pix_mp->ycbcr_enc = pix->ycbcr_enc;
pix_mp->quantization = pix->quantization;
pix_mp->xfer_func = pix->xfer_func;
}
void virtio_video_pix_fmt_mp2sp(const struct v4l2_pix_format_mplane *pix_mp,
struct v4l2_pix_format *pix)
{
pix->width = pix_mp->width;
pix->height = pix_mp->height;
pix->pixelformat = pix_mp->pixelformat;
pix->field = pix_mp->field;
pix->bytesperline = pix_mp->plane_fmt[0].bytesperline;
pix->sizeimage = pix_mp->plane_fmt[0].sizeimage;
pix->colorspace = pix_mp->colorspace;
pix->priv = 0;
pix->flags = pix_mp->flags;
pix->ycbcr_enc = pix_mp->ycbcr_enc;
pix->quantization = pix_mp->quantization;
pix->xfer_func = pix_mp->xfer_func;
}
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