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c5943b9c5312d4fa23175ff146e901b865e4a60a
android_kernel_xiaomi_sm8450/drivers/media/platform/vicodec/codec-v4l2-fwht.c
Hans Verkuil 98b5368ff9 media: vicodec: move the GREY format to the end of the list 
With the GREY format at the beginning, the default format selected
by vicodec would be GREY instead of YUV420. That didn't make sense,
so move it to the end of the list.

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
2018-12-03 14:45:25 -05:00

395 lines
11 KiB
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// SPDX-License-Identifier: LGPL-2.1
/*
* A V4L2 frontend for the FWHT codec
*
* Copyright 2018 Cisco Systems, Inc. and/or its affiliates. All rights reserved.
*/
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/videodev2.h>
#include "codec-v4l2-fwht.h"
static const struct v4l2_fwht_pixfmt_info v4l2_fwht_pixfmts[] = {
{ V4L2_PIX_FMT_YUV420, 1, 3, 2, 1, 1, 2, 2, 3},
{ V4L2_PIX_FMT_YVU420, 1, 3, 2, 1, 1, 2, 2, 3},
{ V4L2_PIX_FMT_YUV422P, 1, 2, 1, 1, 1, 2, 1, 3},
{ V4L2_PIX_FMT_NV12, 1, 3, 2, 1, 2, 2, 2, 3},
{ V4L2_PIX_FMT_NV21, 1, 3, 2, 1, 2, 2, 2, 3},
{ V4L2_PIX_FMT_NV16, 1, 2, 1, 1, 2, 2, 1, 3},
{ V4L2_PIX_FMT_NV61, 1, 2, 1, 1, 2, 2, 1, 3},
{ V4L2_PIX_FMT_NV24, 1, 3, 1, 1, 2, 1, 1, 3},
{ V4L2_PIX_FMT_NV42, 1, 3, 1, 1, 2, 1, 1, 3},
{ V4L2_PIX_FMT_YUYV, 2, 2, 1, 2, 4, 2, 1, 3},
{ V4L2_PIX_FMT_YVYU, 2, 2, 1, 2, 4, 2, 1, 3},
{ V4L2_PIX_FMT_UYVY, 2, 2, 1, 2, 4, 2, 1, 3},
{ V4L2_PIX_FMT_VYUY, 2, 2, 1, 2, 4, 2, 1, 3},
{ V4L2_PIX_FMT_BGR24, 3, 3, 1, 3, 3, 1, 1, 3},
{ V4L2_PIX_FMT_RGB24, 3, 3, 1, 3, 3, 1, 1, 3},
{ V4L2_PIX_FMT_HSV24, 3, 3, 1, 3, 3, 1, 1, 3},
{ V4L2_PIX_FMT_BGR32, 4, 4, 1, 4, 4, 1, 1, 3},
{ V4L2_PIX_FMT_XBGR32, 4, 4, 1, 4, 4, 1, 1, 3},
{ V4L2_PIX_FMT_RGB32, 4, 4, 1, 4, 4, 1, 1, 3},
{ V4L2_PIX_FMT_XRGB32, 4, 4, 1, 4, 4, 1, 1, 3},
{ V4L2_PIX_FMT_HSV32, 4, 4, 1, 4, 4, 1, 1, 3},
{ V4L2_PIX_FMT_ARGB32, 4, 4, 1, 4, 4, 1, 1, 4},
{ V4L2_PIX_FMT_ABGR32, 4, 4, 1, 4, 4, 1, 1, 4},
{ V4L2_PIX_FMT_GREY, 1, 1, 1, 1, 0, 1, 1, 1},
};
const struct v4l2_fwht_pixfmt_info *v4l2_fwht_find_pixfmt(u32 pixelformat)
{
unsigned int i;
for (i = 0; i < ARRAY_SIZE(v4l2_fwht_pixfmts); i++)
if (v4l2_fwht_pixfmts[i].id == pixelformat)
return v4l2_fwht_pixfmts + i;
return NULL;
}
const struct v4l2_fwht_pixfmt_info *v4l2_fwht_get_pixfmt(u32 idx)
{
if (idx >= ARRAY_SIZE(v4l2_fwht_pixfmts))
return NULL;
return v4l2_fwht_pixfmts + idx;
}
int v4l2_fwht_encode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
{
unsigned int size = state->width * state->height;
const struct v4l2_fwht_pixfmt_info *info = state->info;
struct fwht_cframe_hdr *p_hdr;
struct fwht_cframe cf;
struct fwht_raw_frame rf;
u32 encoding;
u32 flags = 0;
if (!info)
return -EINVAL;
rf.width = state->width;
rf.height = state->height;
rf.luma = p_in;
rf.width_div = info->width_div;
rf.height_div = info->height_div;
rf.luma_alpha_step = info->luma_alpha_step;
rf.chroma_step = info->chroma_step;
rf.alpha = NULL;
rf.components_num = info->components_num;
switch (info->id) {
case V4L2_PIX_FMT_GREY:
rf.cb = NULL;
rf.cr = NULL;
break;
case V4L2_PIX_FMT_YUV420:
rf.cb = rf.luma + size;
rf.cr = rf.cb + size / 4;
break;
case V4L2_PIX_FMT_YVU420:
rf.cr = rf.luma + size;
rf.cb = rf.cr + size / 4;
break;
case V4L2_PIX_FMT_YUV422P:
rf.cb = rf.luma + size;
rf.cr = rf.cb + size / 2;
break;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV24:
rf.cb = rf.luma + size;
rf.cr = rf.cb + 1;
break;
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV61:
case V4L2_PIX_FMT_NV42:
rf.cr = rf.luma + size;
rf.cb = rf.cr + 1;
break;
case V4L2_PIX_FMT_YUYV:
rf.cb = rf.luma + 1;
rf.cr = rf.cb + 2;
break;
case V4L2_PIX_FMT_YVYU:
rf.cr = rf.luma + 1;
rf.cb = rf.cr + 2;
break;
case V4L2_PIX_FMT_UYVY:
rf.cb = rf.luma;
rf.cr = rf.cb + 2;
rf.luma++;
break;
case V4L2_PIX_FMT_VYUY:
rf.cr = rf.luma;
rf.cb = rf.cr + 2;
rf.luma++;
break;
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_HSV24:
rf.cr = rf.luma;
rf.cb = rf.cr + 2;
rf.luma++;
break;
case V4L2_PIX_FMT_BGR24:
rf.cb = rf.luma;
rf.cr = rf.cb + 2;
rf.luma++;
break;
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_XRGB32:
case V4L2_PIX_FMT_HSV32:
rf.cr = rf.luma + 1;
rf.cb = rf.cr + 2;
rf.luma += 2;
break;
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_XBGR32:
rf.cb = rf.luma;
rf.cr = rf.cb + 2;
rf.luma++;
break;
case V4L2_PIX_FMT_ARGB32:
rf.alpha = rf.luma;
rf.cr = rf.luma + 1;
rf.cb = rf.cr + 2;
rf.luma += 2;
break;
case V4L2_PIX_FMT_ABGR32:
rf.cb = rf.luma;
rf.cr = rf.cb + 2;
rf.luma++;
rf.alpha = rf.cr + 1;
break;
default:
return -EINVAL;
}
cf.width = state->width;
cf.height = state->height;
cf.i_frame_qp = state->i_frame_qp;
cf.p_frame_qp = state->p_frame_qp;
cf.rlc_data = (__be16 *)(p_out + sizeof(*p_hdr));
encoding = fwht_encode_frame(&rf, &state->ref_frame, &cf,
!state->gop_cnt,
state->gop_cnt == state->gop_size - 1);
if (!(encoding & FWHT_FRAME_PCODED))
state->gop_cnt = 0;
if (++state->gop_cnt >= state->gop_size)
state->gop_cnt = 0;
p_hdr = (struct fwht_cframe_hdr *)p_out;
p_hdr->magic1 = FWHT_MAGIC1;
p_hdr->magic2 = FWHT_MAGIC2;
p_hdr->version = htonl(FWHT_VERSION);
p_hdr->width = htonl(cf.width);
p_hdr->height = htonl(cf.height);
flags |= (info->components_num - 1) << FWHT_FL_COMPONENTS_NUM_OFFSET;
if (encoding & FWHT_LUMA_UNENCODED)
flags |= FWHT_FL_LUMA_IS_UNCOMPRESSED;
if (encoding & FWHT_CB_UNENCODED)
flags |= FWHT_FL_CB_IS_UNCOMPRESSED;
if (encoding & FWHT_CR_UNENCODED)
flags |= FWHT_FL_CR_IS_UNCOMPRESSED;
if (encoding & FWHT_ALPHA_UNENCODED)
flags |= FWHT_FL_ALPHA_IS_UNCOMPRESSED;
if (rf.height_div == 1)
flags |= FWHT_FL_CHROMA_FULL_HEIGHT;
if (rf.width_div == 1)
flags |= FWHT_FL_CHROMA_FULL_WIDTH;
p_hdr->flags = htonl(flags);
p_hdr->colorspace = htonl(state->colorspace);
p_hdr->xfer_func = htonl(state->xfer_func);
p_hdr->ycbcr_enc = htonl(state->ycbcr_enc);
p_hdr->quantization = htonl(state->quantization);
p_hdr->size = htonl(cf.size);
state->ref_frame.width = cf.width;
state->ref_frame.height = cf.height;
return cf.size + sizeof(*p_hdr);
}
int v4l2_fwht_decode(struct v4l2_fwht_state *state, u8 *p_in, u8 *p_out)
{
unsigned int size = state->width * state->height;
unsigned int chroma_size = size;
unsigned int i;
u32 flags;
struct fwht_cframe_hdr *p_hdr;
struct fwht_cframe cf;
u8 *p;
unsigned int components_num = 3;
unsigned int version;
if (!state->info)
return -EINVAL;
p_hdr = (struct fwht_cframe_hdr *)p_in;
cf.width = ntohl(p_hdr->width);
cf.height = ntohl(p_hdr->height);
version = ntohl(p_hdr->version);
if (!version || version > FWHT_VERSION) {
pr_err("version %d is not supported, current version is %d\n",
version, FWHT_VERSION);
return -EINVAL;
}
if (p_hdr->magic1 != FWHT_MAGIC1 ||
p_hdr->magic2 != FWHT_MAGIC2 ||
(cf.width & 7) || (cf.height & 7))
return -EINVAL;
/* TODO: support resolution changes */
if (cf.width != state->width || cf.height != state->height)
return -EINVAL;
flags = ntohl(p_hdr->flags);
if (version == FWHT_VERSION) {
components_num = 1 + ((flags & FWHT_FL_COMPONENTS_NUM_MSK) >>
FWHT_FL_COMPONENTS_NUM_OFFSET);
}
state->colorspace = ntohl(p_hdr->colorspace);
state->xfer_func = ntohl(p_hdr->xfer_func);
state->ycbcr_enc = ntohl(p_hdr->ycbcr_enc);
state->quantization = ntohl(p_hdr->quantization);
cf.rlc_data = (__be16 *)(p_in + sizeof(*p_hdr));
if (!(flags & FWHT_FL_CHROMA_FULL_WIDTH))
chroma_size /= 2;
if (!(flags & FWHT_FL_CHROMA_FULL_HEIGHT))
chroma_size /= 2;
fwht_decode_frame(&cf, &state->ref_frame, flags, components_num);
/*
* TODO - handle the case where the compressed stream encodes a
* different format than the requested decoded format.
*/
switch (state->info->id) {
case V4L2_PIX_FMT_GREY:
memcpy(p_out, state->ref_frame.luma, size);
break;
case V4L2_PIX_FMT_YUV420:
case V4L2_PIX_FMT_YUV422P:
memcpy(p_out, state->ref_frame.luma, size);
p_out += size;
memcpy(p_out, state->ref_frame.cb, chroma_size);
p_out += chroma_size;
memcpy(p_out, state->ref_frame.cr, chroma_size);
break;
case V4L2_PIX_FMT_YVU420:
memcpy(p_out, state->ref_frame.luma, size);
p_out += size;
memcpy(p_out, state->ref_frame.cr, chroma_size);
p_out += chroma_size;
memcpy(p_out, state->ref_frame.cb, chroma_size);
break;
case V4L2_PIX_FMT_NV12:
case V4L2_PIX_FMT_NV16:
case V4L2_PIX_FMT_NV24:
memcpy(p_out, state->ref_frame.luma, size);
p_out += size;
for (i = 0, p = p_out; i < chroma_size; i++) {
*p++ = state->ref_frame.cb[i];
*p++ = state->ref_frame.cr[i];
}
break;
case V4L2_PIX_FMT_NV21:
case V4L2_PIX_FMT_NV61:
case V4L2_PIX_FMT_NV42:
memcpy(p_out, state->ref_frame.luma, size);
p_out += size;
for (i = 0, p = p_out; i < chroma_size; i++) {
*p++ = state->ref_frame.cr[i];
*p++ = state->ref_frame.cb[i];
}
break;
case V4L2_PIX_FMT_YUYV:
for (i = 0, p = p_out; i < size; i += 2) {
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cb[i / 2];
*p++ = state->ref_frame.luma[i + 1];
*p++ = state->ref_frame.cr[i / 2];
}
break;
case V4L2_PIX_FMT_YVYU:
for (i = 0, p = p_out; i < size; i += 2) {
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cr[i / 2];
*p++ = state->ref_frame.luma[i + 1];
*p++ = state->ref_frame.cb[i / 2];
}
break;
case V4L2_PIX_FMT_UYVY:
for (i = 0, p = p_out; i < size; i += 2) {
*p++ = state->ref_frame.cb[i / 2];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cr[i / 2];
*p++ = state->ref_frame.luma[i + 1];
}
break;
case V4L2_PIX_FMT_VYUY:
for (i = 0, p = p_out; i < size; i += 2) {
*p++ = state->ref_frame.cr[i / 2];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cb[i / 2];
*p++ = state->ref_frame.luma[i + 1];
}
break;
case V4L2_PIX_FMT_RGB24:
case V4L2_PIX_FMT_HSV24:
for (i = 0, p = p_out; i < size; i++) {
*p++ = state->ref_frame.cr[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cb[i];
}
break;
case V4L2_PIX_FMT_BGR24:
for (i = 0, p = p_out; i < size; i++) {
*p++ = state->ref_frame.cb[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cr[i];
}
break;
case V4L2_PIX_FMT_RGB32:
case V4L2_PIX_FMT_XRGB32:
case V4L2_PIX_FMT_HSV32:
for (i = 0, p = p_out; i < size; i++) {
*p++ = 0;
*p++ = state->ref_frame.cr[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cb[i];
}
break;
case V4L2_PIX_FMT_BGR32:
case V4L2_PIX_FMT_XBGR32:
for (i = 0, p = p_out; i < size; i++) {
*p++ = state->ref_frame.cb[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cr[i];
*p++ = 0;
}
break;
case V4L2_PIX_FMT_ARGB32:
for (i = 0, p = p_out; i < size; i++) {
*p++ = state->ref_frame.alpha[i];
*p++ = state->ref_frame.cr[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cb[i];
}
break;
case V4L2_PIX_FMT_ABGR32:
for (i = 0, p = p_out; i < size; i++) {
*p++ = state->ref_frame.cb[i];
*p++ = state->ref_frame.luma[i];
*p++ = state->ref_frame.cr[i];
*p++ = state->ref_frame.alpha[i];
}
break;
default:
return -EINVAL;
}
return 0;
}
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