mirror of https://git.ffmpeg.org/ffmpeg.git
68 lines
2.0 KiB
Plaintext
68 lines
2.0 KiB
Plaintext
/*
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* FFv1 codec
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*
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* Copyright (c) 2024 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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void encode_slice(inout SliceContext sc, const uint slice_idx)
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{
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int bits = bits_per_raw_sample;
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#ifndef GOLOMB
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if (sc.slice_coding_mode == 1) {
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for (int p = 0; p < planes; p++) {
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int h = sc.slice_dim.y;
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if (p > 0 && p < 3)
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h >>= chroma_shift.y;
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for (int y = 0; y < h; y++)
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encode_line_pcm(sc, y, p, 0, bits);
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}
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} else
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#endif
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{
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uint64_t slice_state_off = uint64_t(slice_state) +
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slice_idx*plane_state_size*codec_planes;
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for (int p = 0; p < planes; p++) {
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int run_index = 0;
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int h = sc.slice_dim.y;
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if (p > 0 && p < 3)
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h >>= chroma_shift.y;
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for (int y = 0; y < h; y++)
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encode_line(sc, slice_state_off, y, p, 0, bits, run_index);
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/* For the second chroma plane, reuse the first plane's state */
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if (p != 1)
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slice_state_off += plane_state_size;
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}
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}
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finalize_slice(sc, slice_idx);
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}
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void main(void)
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{
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const uint slice_idx = gl_WorkGroupID.y*gl_NumWorkGroups.x + gl_WorkGroupID.x;
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encode_slice(slice_ctx[slice_idx], slice_idx);
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}
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