mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
67 lines
2.0 KiB
67 lines
2.0 KiB
/* |
|
* FFv1 codec |
|
* |
|
* Copyright (c) 2024 Lynne <dev@lynne.ee> |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg 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 |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
void encode_slice(inout SliceContext sc, const uint slice_idx) |
|
{ |
|
int bits = bits_per_raw_sample; |
|
|
|
#ifndef GOLOMB |
|
if (sc.slice_coding_mode == 1) { |
|
for (int p = 0; p < planes; p++) { |
|
|
|
int h = sc.slice_dim.y; |
|
if (p > 0 && p < 3) |
|
h >>= chroma_shift.y; |
|
|
|
for (int y = 0; y < h; y++) |
|
encode_line_pcm(sc, y, p, 0, bits); |
|
} |
|
} else |
|
#endif |
|
{ |
|
uint64_t slice_state_off = uint64_t(slice_state) + |
|
slice_idx*plane_state_size*codec_planes; |
|
|
|
for (int p = 0; p < planes; p++) { |
|
int run_index = 0; |
|
|
|
int h = sc.slice_dim.y; |
|
if (p > 0 && p < 3) |
|
h >>= chroma_shift.y; |
|
|
|
for (int y = 0; y < h; y++) |
|
encode_line(sc, slice_state_off, y, p, 0, bits, run_index); |
|
|
|
/* For the second chroma plane, reuse the first plane's state */ |
|
if (p != 1) |
|
slice_state_off += plane_state_size; |
|
} |
|
} |
|
|
|
finalize_slice(sc, slice_idx); |
|
} |
|
|
|
void main(void) |
|
{ |
|
const uint slice_idx = gl_WorkGroupID.y*gl_NumWorkGroups.x + gl_WorkGroupID.x; |
|
encode_slice(slice_ctx[slice_idx], slice_idx); |
|
}
|
|
|