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path: root/drivers/media/platform/vicodec/codec-v4l2-fwht.c
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Diffstat (limited to 'drivers/media/platform/vicodec/codec-v4l2-fwht.c')
-rw-r--r--drivers/media/platform/vicodec/codec-v4l2-fwht.c394
1 files changed, 0 insertions, 394 deletions
diff --git a/drivers/media/platform/vicodec/codec-v4l2-fwht.c b/drivers/media/platform/vicodec/codec-v4l2-fwht.c
deleted file mode 100644
index 8cb0212df67f..000000000000
--- a/drivers/media/platform/vicodec/codec-v4l2-fwht.c
+++ /dev/null
@@ -1,394 +0,0 @@
-// 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;
-}
generated by cgit (git 2.34.1) at 2025-12-26 16:20:56 +0000