mirror of
https://git.ffmpeg.org/ffmpeg.git
synced 2026-04-19 00:50:23 +00:00
107 lines
3.7 KiB
C
107 lines
3.7 KiB
C
/*
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* Copyright (c) 2025 Lynne <dev@lynne.ee>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "ffv1_vulkan.h"
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#include "libavutil/crc.h"
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void ff_ffv1_vk_set_common_sl(AVCodecContext *avctx, FFV1Context *f,
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VkSpecializationInfo *sl,
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enum AVPixelFormat sw_format)
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{
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const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(sw_format);
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int color_planes = av_pix_fmt_desc_get(sw_format)->nb_components;
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int is_rgb = !(f->colorspace == 0 && sw_format != AV_PIX_FMT_YA8) &&
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!(sw_format == AV_PIX_FMT_YA8);
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SPEC_LIST_ADD(sl, 2, 32, f->version);
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SPEC_LIST_ADD(sl, 3, 32, f->quant_table_count);
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for (int i = 0; i < f->quant_table_count; i++) {
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if (f->quant_tables[i][3][127] || f->quant_tables[i][4][127]) {
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SPEC_LIST_ADD(sl, 4, 32, 1);
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break;
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}
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}
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int bits = desc->comp[0].depth;
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SPEC_LIST_ADD(sl, 5, 32, 1 << bits);
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SPEC_LIST_ADD(sl, 6, 32, f->colorspace);
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SPEC_LIST_ADD(sl, 7, 32, f->transparency);
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SPEC_LIST_ADD(sl, 8, 32, ff_vk_mt_is_np_rgb(sw_format) &&
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(desc->flags & AV_PIX_FMT_FLAG_PLANAR));
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SPEC_LIST_ADD(sl, 9, 32, f->plane_count);
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SPEC_LIST_ADD(sl, 10, 32, color_planes);
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SPEC_LIST_ADD(sl, 11, 32, av_pix_fmt_count_planes(sw_format));
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SPEC_LIST_ADD(sl, 12, 32, bits + is_rgb);
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SPEC_LIST_ADD(sl, 13, 32, f->chroma_h_shift);
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SPEC_LIST_ADD(sl, 14, 32, f->chroma_v_shift);
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}
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static void set_crc_tab(uint32_t *buf)
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{
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for (uint32_t i = 0; i < 256; i++) {
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uint32_t c = i << 24;
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for (int j = 0; j < 8; j++)
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c = (c << 1) ^ (0x04C11DB7 & (((int32_t) c) >> 31));
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buf[i] = av_bswap32(c);
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}
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}
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static void set_rc_state_tab(FFV1Context *f, uint8_t *buf)
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{
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for (int i = 1; i < 256; i++) {
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buf[256 + i] = f->state_transition[i];
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buf[256 - i] = 256 - (int)f->state_transition[i];
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}
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}
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int ff_ffv1_vk_init_consts(FFVulkanContext *s, FFVkBuffer *vkb, FFV1Context *f)
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{
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int err;
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uint8_t *buf_mapped;
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size_t buf_len = 256*sizeof(uint32_t) + /* CRC */
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512*sizeof(uint8_t) + /* Rangecoder */
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MAX_QUANT_TABLES*
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MAX_CONTEXT_INPUTS*
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MAX_QUANT_TABLE_SIZE*sizeof(int16_t);
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RET(ff_vk_create_buf(s, vkb,
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buf_len,
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NULL, NULL,
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VK_BUFFER_USAGE_STORAGE_BUFFER_BIT |
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VK_BUFFER_USAGE_UNIFORM_BUFFER_BIT,
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VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT |
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VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT));
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RET(ff_vk_map_buffer(s, vkb, (void *)&buf_mapped, 0));
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set_crc_tab((uint32_t *)buf_mapped);
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set_rc_state_tab(f, buf_mapped + 256*sizeof(uint32_t));
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memcpy(buf_mapped + 256*sizeof(uint32_t) + 512*sizeof(uint8_t),
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f->quant_tables, sizeof(f->quant_tables));
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RET(ff_vk_unmap_buffer(s, vkb, 1));
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fail:
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return err;
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}
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