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/* |
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* Mirillis FIC decoder |
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* |
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* Copyright (c) 2014 Konstantin Shishkov |
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* Copyright (c) 2014 Derek Buitenhuis |
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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 "libavutil/common.h" |
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#include "libavutil/mem_internal.h" |
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#include "libavutil/opt.h" |
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#include "avcodec.h" |
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#include "internal.h" |
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#include "get_bits.h" |
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#include "golomb.h" |
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typedef struct FICThreadContext { |
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DECLARE_ALIGNED(16, int16_t, block)[64]; |
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uint8_t *src; |
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int slice_h; |
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int src_size; |
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int y_off; |
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int p_frame; |
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} FICThreadContext; |
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typedef struct FICContext { |
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AVClass *class; |
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AVCodecContext *avctx; |
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AVFrame *frame; |
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AVFrame *final_frame; |
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FICThreadContext *slice_data; |
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int slice_data_size; |
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const uint8_t *qmat; |
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enum AVPictureType cur_frame_type; |
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54 |
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int aligned_width, aligned_height; |
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int num_slices, slice_h; |
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uint8_t cursor_buf[4096]; |
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int skip_cursor; |
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} FICContext; |
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static const uint8_t fic_qmat_hq[64] = { |
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1, 2, 2, 2, 3, 3, 3, 4, |
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2, 2, 2, 3, 3, 3, 4, 4, |
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2, 2, 3, 3, 3, 4, 4, 4, |
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2, 2, 3, 3, 3, 4, 4, 5, |
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2, 3, 3, 3, 4, 4, 5, 6, |
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3, 3, 3, 4, 4, 5, 6, 7, |
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3, 3, 3, 4, 4, 5, 7, 7, |
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3, 3, 4, 4, 5, 7, 7, 7, |
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}; |
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static const uint8_t fic_qmat_lq[64] = { |
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1, 5, 6, 7, 8, 9, 9, 11, |
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5, 5, 7, 8, 9, 9, 11, 12, |
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6, 7, 8, 9, 9, 11, 11, 12, |
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7, 7, 8, 9, 9, 11, 12, 13, |
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7, 8, 9, 9, 10, 11, 13, 16, |
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8, 9, 9, 10, 11, 13, 16, 19, |
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8, 9, 9, 11, 12, 15, 18, 23, |
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9, 9, 11, 12, 15, 18, 23, 27 |
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}; |
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static const uint8_t fic_header[7] = { 0, 0, 1, 'F', 'I', 'C', 'V' }; |
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#define FIC_HEADER_SIZE 27 |
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#define CURSOR_OFFSET 59 |
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1030768 |
static av_always_inline void fic_idct(int16_t *blk, int step, int shift, int rnd) |
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{ |
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1030768 |
const unsigned t0 = 27246 * blk[3 * step] + 18405 * blk[5 * step]; |
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1030768 |
const unsigned t1 = 27246 * blk[5 * step] - 18405 * blk[3 * step]; |
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1030768 |
const unsigned t2 = 6393 * blk[7 * step] + 32139 * blk[1 * step]; |
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1030768 |
const unsigned t3 = 6393 * blk[1 * step] - 32139 * blk[7 * step]; |
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1030768 |
const unsigned t4 = 5793U * ((int)(t2 + t0 + 0x800) >> 12); |
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1030768 |
const unsigned t5 = 5793U * ((int)(t3 + t1 + 0x800) >> 12); |
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1030768 |
const unsigned t6 = t2 - t0; |
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1030768 |
const unsigned t7 = t3 - t1; |
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1030768 |
const unsigned t8 = 17734 * blk[2 * step] - 42813 * blk[6 * step]; |
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1030768 |
const unsigned t9 = 17734 * blk[6 * step] + 42814 * blk[2 * step]; |
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1030768 |
const unsigned tA = (blk[0 * step] - blk[4 * step]) * 32768 + rnd; |
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1030768 |
const unsigned tB = (blk[0 * step] + blk[4 * step]) * 32768 + rnd; |
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1030768 |
blk[0 * step] = (int)( t4 + t9 + tB) >> shift; |
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1030768 |
blk[1 * step] = (int)( t6 + t7 + t8 + tA) >> shift; |
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1030768 |
blk[2 * step] = (int)( t6 - t7 - t8 + tA) >> shift; |
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1030768 |
blk[3 * step] = (int)( t5 - t9 + tB) >> shift; |
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1030768 |
blk[4 * step] = (int)( -t5 - t9 + tB) >> shift; |
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1030768 |
blk[5 * step] = (int)(-(t6 - t7) - t8 + tA) >> shift; |
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1030768 |
blk[6 * step] = (int)(-(t6 + t7) + t8 + tA) >> shift; |
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1030768 |
blk[7 * step] = (int)( -t4 + t9 + tB) >> shift; |
110 |
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1030768 |
} |
111 |
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112 |
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64423 |
static void fic_idct_put(uint8_t *dst, int stride, int16_t *block) |
113 |
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{ |
114 |
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int i, j; |
115 |
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int16_t *ptr; |
116 |
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117 |
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64423 |
ptr = block; |
118 |
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64423 |
fic_idct(ptr++, 8, 13, (1 << 12) + (1 << 17)); |
119 |
✓✓ |
515384 |
for (i = 1; i < 8; i++) { |
120 |
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450961 |
fic_idct(ptr, 8, 13, 1 << 12); |
121 |
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450961 |
ptr++; |
122 |
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} |
123 |
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124 |
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64423 |
ptr = block; |
125 |
✓✓ |
579807 |
for (i = 0; i < 8; i++) { |
126 |
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515384 |
fic_idct(ptr, 1, 20, 0); |
127 |
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515384 |
ptr += 8; |
128 |
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} |
129 |
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130 |
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64423 |
ptr = block; |
131 |
✓✓ |
579807 |
for (j = 0; j < 8; j++) { |
132 |
✓✓ |
4638456 |
for (i = 0; i < 8; i++) |
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4123072 |
dst[i] = av_clip_uint8(ptr[i]); |
134 |
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515384 |
dst += stride; |
135 |
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515384 |
ptr += 8; |
136 |
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} |
137 |
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64423 |
} |
138 |
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538550 |
static int fic_decode_block(FICContext *ctx, GetBitContext *gb, |
139 |
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uint8_t *dst, int stride, int16_t *block, int *is_p) |
140 |
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{ |
141 |
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int i, num_coeff; |
142 |
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143 |
✓✓ |
538550 |
if (get_bits_left(gb) < 8) |
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3 |
return AVERROR_INVALIDDATA; |
145 |
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146 |
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/* Is it a skip block? */ |
147 |
✓✓ |
538547 |
if (get_bits1(gb)) { |
148 |
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474124 |
*is_p = 1; |
149 |
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474124 |
return 0; |
150 |
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} |
151 |
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152 |
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64423 |
memset(block, 0, sizeof(*block) * 64); |
153 |
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154 |
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64423 |
num_coeff = get_bits(gb, 7); |
155 |
✗✓ |
64423 |
if (num_coeff > 64) |
156 |
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return AVERROR_INVALIDDATA; |
157 |
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158 |
✓✓ |
1189311 |
for (i = 0; i < num_coeff; i++) { |
159 |
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1124888 |
int v = get_se_golomb(gb); |
160 |
✓✗✗✓
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1124888 |
if (v < -2048 || v > 2048) |
161 |
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return AVERROR_INVALIDDATA; |
162 |
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1124888 |
block[ff_zigzag_direct[i]] = v * |
163 |
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1124888 |
ctx->qmat[ff_zigzag_direct[i]]; |
164 |
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} |
165 |
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166 |
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64423 |
fic_idct_put(dst, stride, block); |
167 |
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168 |
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64423 |
return 0; |
169 |
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} |
170 |
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171 |
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92 |
static int fic_decode_slice(AVCodecContext *avctx, void *tdata) |
172 |
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{ |
173 |
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92 |
FICContext *ctx = avctx->priv_data; |
174 |
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FICThreadContext *tctx = tdata; |
175 |
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GetBitContext gb; |
176 |
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uint8_t *src = tctx->src; |
177 |
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int slice_h = tctx->slice_h; |
178 |
|
92 |
int src_size = tctx->src_size; |
179 |
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int y_off = tctx->y_off; |
180 |
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int x, y, p, ret; |
181 |
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182 |
|
92 |
ret = init_get_bits8(&gb, src, src_size); |
183 |
✓✓ |
92 |
if (ret < 0) |
184 |
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4 |
return ret; |
185 |
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186 |
✓✓ |
349 |
for (p = 0; p < 3; p++) { |
187 |
|
264 |
int stride = ctx->frame->linesize[p]; |
188 |
|
264 |
uint8_t* dst = ctx->frame->data[p] + (y_off >> !!p) * stride; |
189 |
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|
190 |
✓✓ |
4485 |
for (y = 0; y < (slice_h >> !!p); y += 8) { |
191 |
✓✓ |
542771 |
for (x = 0; x < (ctx->aligned_width >> !!p); x += 8) { |
192 |
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int ret; |
193 |
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|
194 |
✓✓ |
538550 |
if ((ret = fic_decode_block(ctx, &gb, dst + x, stride, |
195 |
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538550 |
tctx->block, &tctx->p_frame)) != 0) |
196 |
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3 |
return ret; |
197 |
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} |
198 |
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199 |
|
4221 |
dst += 8 * stride; |
200 |
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} |
201 |
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} |
202 |
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203 |
|
85 |
return 0; |
204 |
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} |
205 |
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206 |
|
1472 |
static av_always_inline void fic_alpha_blend(uint8_t *dst, uint8_t *src, |
207 |
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int size, uint8_t *alpha) |
208 |
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{ |
209 |
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int i; |
210 |
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|
211 |
✓✓ |
36800 |
for (i = 0; i < size; i++) |
212 |
|
35328 |
dst[i] += ((src[i] - dst[i]) * alpha[i]) >> 8; |
213 |
|
1472 |
} |
214 |
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215 |
|
23 |
static void fic_draw_cursor(AVCodecContext *avctx, int cur_x, int cur_y) |
216 |
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{ |
217 |
|
23 |
FICContext *ctx = avctx->priv_data; |
218 |
|
23 |
uint8_t *ptr = ctx->cursor_buf; |
219 |
|
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uint8_t *dstptr[3]; |
220 |
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uint8_t planes[4][1024]; |
221 |
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uint8_t chroma[3][256]; |
222 |
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int i, j, p; |
223 |
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|
224 |
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/* Convert to YUVA444. */ |
225 |
✓✓ |
23575 |
for (i = 0; i < 1024; i++) { |
226 |
|
23552 |
planes[0][i] = (( 25 * ptr[0] + 129 * ptr[1] + 66 * ptr[2]) / 255) + 16; |
227 |
|
23552 |
planes[1][i] = ((-38 * ptr[0] + 112 * ptr[1] + -74 * ptr[2]) / 255) + 128; |
228 |
|
23552 |
planes[2][i] = ((-18 * ptr[0] + 112 * ptr[1] + -94 * ptr[2]) / 255) + 128; |
229 |
|
23552 |
planes[3][i] = ptr[3]; |
230 |
|
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|
231 |
|
23552 |
ptr += 4; |
232 |
|
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} |
233 |
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|
234 |
|
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/* Subsample chroma. */ |
235 |
✓✓ |
391 |
for (i = 0; i < 32; i += 2) |
236 |
✓✓ |
6256 |
for (j = 0; j < 32; j += 2) |
237 |
✓✓ |
23552 |
for (p = 0; p < 3; p++) |
238 |
|
17664 |
chroma[p][16 * (i / 2) + j / 2] = (planes[p + 1][32 * i + j ] + |
239 |
|
17664 |
planes[p + 1][32 * i + j + 1] + |
240 |
|
17664 |
planes[p + 1][32 * (i + 1) + j ] + |
241 |
|
17664 |
planes[p + 1][32 * (i + 1) + j + 1]) / 4; |
242 |
|
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|
243 |
|
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/* Seek to x/y pos of cursor. */ |
244 |
✓✓ |
92 |
for (i = 0; i < 3; i++) |
245 |
|
69 |
dstptr[i] = ctx->final_frame->data[i] + |
246 |
|
69 |
(ctx->final_frame->linesize[i] * (cur_y >> !!i)) + |
247 |
|
69 |
(cur_x >> !!i) + !!i; |
248 |
|
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|
249 |
|
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/* Copy. */ |
250 |
✓✓ |
391 |
for (i = 0; i < FFMIN(32, avctx->height - cur_y) - 1; i += 2) { |
251 |
|
368 |
int lsize = FFMIN(32, avctx->width - cur_x); |
252 |
|
368 |
int csize = lsize / 2; |
253 |
|
|
|
254 |
|
368 |
fic_alpha_blend(dstptr[0], |
255 |
|
368 |
planes[0] + i * 32, lsize, planes[3] + i * 32); |
256 |
|
368 |
fic_alpha_blend(dstptr[0] + ctx->final_frame->linesize[0], |
257 |
|
368 |
planes[0] + (i + 1) * 32, lsize, planes[3] + (i + 1) * 32); |
258 |
|
368 |
fic_alpha_blend(dstptr[1], |
259 |
|
368 |
chroma[0] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); |
260 |
|
368 |
fic_alpha_blend(dstptr[2], |
261 |
|
368 |
chroma[1] + (i / 2) * 16, csize, chroma[2] + (i / 2) * 16); |
262 |
|
|
|
263 |
|
368 |
dstptr[0] += ctx->final_frame->linesize[0] * 2; |
264 |
|
368 |
dstptr[1] += ctx->final_frame->linesize[1]; |
265 |
|
368 |
dstptr[2] += ctx->final_frame->linesize[2]; |
266 |
|
|
} |
267 |
|
23 |
} |
268 |
|
|
|
269 |
|
121 |
static int fic_decode_frame(AVCodecContext *avctx, void *data, |
270 |
|
|
int *got_frame, AVPacket *avpkt) |
271 |
|
|
{ |
272 |
|
121 |
FICContext *ctx = avctx->priv_data; |
273 |
|
121 |
uint8_t *src = avpkt->data; |
274 |
|
|
int ret; |
275 |
|
|
int slice, nslices; |
276 |
|
|
int msize; |
277 |
|
|
int tsize; |
278 |
|
|
int cur_x, cur_y; |
279 |
|
121 |
int skip_cursor = ctx->skip_cursor; |
280 |
|
|
uint8_t *sdata; |
281 |
|
|
|
282 |
✗✓ |
121 |
if ((ret = ff_reget_buffer(avctx, ctx->frame, 0)) < 0) |
283 |
|
|
return ret; |
284 |
|
|
|
285 |
|
|
/* Header + at least one slice (4) */ |
286 |
✗✓ |
121 |
if (avpkt->size < FIC_HEADER_SIZE + 4) { |
287 |
|
|
av_log(avctx, AV_LOG_ERROR, "Frame data is too small.\n"); |
288 |
|
|
return AVERROR_INVALIDDATA; |
289 |
|
|
} |
290 |
|
|
|
291 |
|
|
/* Check for header. */ |
292 |
✗✓ |
121 |
if (memcmp(src, fic_header, 7)) |
293 |
|
|
av_log(avctx, AV_LOG_WARNING, "Invalid FIC Header.\n"); |
294 |
|
|
|
295 |
|
|
/* Is it a skip frame? */ |
296 |
✓✓ |
121 |
if (src[17]) { |
297 |
✗✓ |
98 |
if (!ctx->final_frame) { |
298 |
|
|
av_log(avctx, AV_LOG_WARNING, "Initial frame is skipped\n"); |
299 |
|
|
return AVERROR_INVALIDDATA; |
300 |
|
|
} |
301 |
|
98 |
goto skip; |
302 |
|
|
} |
303 |
|
|
|
304 |
|
23 |
nslices = src[13]; |
305 |
✗✓ |
23 |
if (!nslices) { |
306 |
|
|
av_log(avctx, AV_LOG_ERROR, "Zero slices found.\n"); |
307 |
|
|
return AVERROR_INVALIDDATA; |
308 |
|
|
} |
309 |
|
|
|
310 |
|
|
/* High or Low Quality Matrix? */ |
311 |
✓✗ |
23 |
ctx->qmat = src[23] ? fic_qmat_hq : fic_qmat_lq; |
312 |
|
|
|
313 |
|
|
/* Skip cursor data. */ |
314 |
|
23 |
tsize = AV_RB24(src + 24); |
315 |
✗✓ |
23 |
if (tsize > avpkt->size - FIC_HEADER_SIZE) { |
316 |
|
|
av_log(avctx, AV_LOG_ERROR, |
317 |
|
|
"Packet is too small to contain cursor (%d vs %d bytes).\n", |
318 |
|
|
tsize, avpkt->size - FIC_HEADER_SIZE); |
319 |
|
|
return AVERROR_INVALIDDATA; |
320 |
|
|
} |
321 |
|
|
|
322 |
✓✗✓✗ ✗✓ |
23 |
if (!tsize || !AV_RL16(src + 37) || !AV_RL16(src + 39)) |
323 |
|
|
skip_cursor = 1; |
324 |
|
|
|
325 |
✓✗✗✓
|
23 |
if (!skip_cursor && tsize < 32) { |
326 |
|
|
av_log(avctx, AV_LOG_WARNING, |
327 |
|
|
"Cursor data too small. Skipping cursor.\n"); |
328 |
|
|
skip_cursor = 1; |
329 |
|
|
} |
330 |
|
|
|
331 |
|
|
/* Cursor position. */ |
332 |
|
23 |
cur_x = AV_RL16(src + 33); |
333 |
|
23 |
cur_y = AV_RL16(src + 35); |
334 |
✓✗✓✗ ✗✓ |
23 |
if (!skip_cursor && (cur_x > avctx->width || cur_y > avctx->height)) { |
335 |
|
|
av_log(avctx, AV_LOG_DEBUG, |
336 |
|
|
"Invalid cursor position: (%d,%d). Skipping cursor.\n", |
337 |
|
|
cur_x, cur_y); |
338 |
|
|
skip_cursor = 1; |
339 |
|
|
} |
340 |
|
|
|
341 |
✓✗✓✗ ✗✓ |
23 |
if (!skip_cursor && (AV_RL16(src + 37) != 32 || AV_RL16(src + 39) != 32)) { |
342 |
|
|
av_log(avctx, AV_LOG_WARNING, |
343 |
|
|
"Invalid cursor size. Skipping cursor.\n"); |
344 |
|
|
skip_cursor = 1; |
345 |
|
|
} |
346 |
|
|
|
347 |
✓✗✗✓
|
23 |
if (!skip_cursor && avpkt->size < CURSOR_OFFSET + sizeof(ctx->cursor_buf)) { |
348 |
|
|
skip_cursor = 1; |
349 |
|
|
} |
350 |
|
|
|
351 |
|
|
/* Slice height for all but the last slice. */ |
352 |
|
23 |
ctx->slice_h = 16 * (ctx->aligned_height >> 4) / nslices; |
353 |
✗✓ |
23 |
if (ctx->slice_h % 16) |
354 |
|
|
ctx->slice_h = FFALIGN(ctx->slice_h - 16, 16); |
355 |
|
|
|
356 |
|
|
/* First slice offset and remaining data. */ |
357 |
|
23 |
sdata = src + tsize + FIC_HEADER_SIZE + 4 * nslices; |
358 |
|
23 |
msize = avpkt->size - nslices * 4 - tsize - FIC_HEADER_SIZE; |
359 |
|
|
|
360 |
✗✓ |
23 |
if (msize <= ctx->aligned_width/8 * (ctx->aligned_height/8) / 8) { |
361 |
|
|
av_log(avctx, AV_LOG_ERROR, "Not enough frame data to decode.\n"); |
362 |
|
|
return AVERROR_INVALIDDATA; |
363 |
|
|
} |
364 |
|
|
|
365 |
|
|
/* Allocate slice data. */ |
366 |
|
23 |
av_fast_malloc(&ctx->slice_data, &ctx->slice_data_size, |
367 |
|
|
nslices * sizeof(ctx->slice_data[0])); |
368 |
✗✓ |
23 |
if (!ctx->slice_data_size) { |
369 |
|
|
av_log(avctx, AV_LOG_ERROR, "Could not allocate slice data.\n"); |
370 |
|
|
return AVERROR(ENOMEM); |
371 |
|
|
} |
372 |
|
23 |
memset(ctx->slice_data, 0, nslices * sizeof(ctx->slice_data[0])); |
373 |
|
|
|
374 |
✓✓ |
115 |
for (slice = 0; slice < nslices; slice++) { |
375 |
|
92 |
unsigned slice_off = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4); |
376 |
|
|
unsigned slice_size; |
377 |
|
92 |
int y_off = ctx->slice_h * slice; |
378 |
|
92 |
int slice_h = ctx->slice_h; |
379 |
|
|
|
380 |
|
|
/* |
381 |
|
|
* Either read the slice size, or consume all data left. |
382 |
|
|
* Also, special case the last slight height. |
383 |
|
|
*/ |
384 |
✓✓ |
92 |
if (slice == nslices - 1) { |
385 |
|
23 |
slice_size = msize; |
386 |
|
23 |
slice_h = FFALIGN(avctx->height - ctx->slice_h * (nslices - 1), 16); |
387 |
|
|
} else { |
388 |
|
69 |
slice_size = AV_RB32(src + tsize + FIC_HEADER_SIZE + slice * 4 + 4); |
389 |
✗✓ |
69 |
if (slice_size < slice_off) |
390 |
|
|
return AVERROR_INVALIDDATA; |
391 |
|
|
} |
392 |
|
|
|
393 |
✓✓✓✓
|
92 |
if (slice_size < slice_off || slice_size > msize) |
394 |
|
4 |
continue; |
395 |
|
|
|
396 |
|
88 |
slice_size -= slice_off; |
397 |
|
|
|
398 |
|
88 |
ctx->slice_data[slice].src = sdata + slice_off; |
399 |
|
88 |
ctx->slice_data[slice].src_size = slice_size; |
400 |
|
88 |
ctx->slice_data[slice].slice_h = slice_h; |
401 |
|
88 |
ctx->slice_data[slice].y_off = y_off; |
402 |
|
|
} |
403 |
|
|
|
404 |
✗✓ |
23 |
if ((ret = avctx->execute(avctx, fic_decode_slice, ctx->slice_data, |
405 |
|
|
NULL, nslices, sizeof(ctx->slice_data[0]))) < 0) |
406 |
|
|
return ret; |
407 |
|
|
|
408 |
|
23 |
ctx->frame->key_frame = 1; |
409 |
|
23 |
ctx->frame->pict_type = AV_PICTURE_TYPE_I; |
410 |
✓✓ |
35 |
for (slice = 0; slice < nslices; slice++) { |
411 |
✓✓ |
32 |
if (ctx->slice_data[slice].p_frame) { |
412 |
|
20 |
ctx->frame->key_frame = 0; |
413 |
|
20 |
ctx->frame->pict_type = AV_PICTURE_TYPE_P; |
414 |
|
20 |
break; |
415 |
|
|
} |
416 |
|
|
} |
417 |
|
23 |
av_frame_free(&ctx->final_frame); |
418 |
|
23 |
ctx->final_frame = av_frame_clone(ctx->frame); |
419 |
✗✓ |
23 |
if (!ctx->final_frame) { |
420 |
|
|
av_log(avctx, AV_LOG_ERROR, "Could not clone frame buffer.\n"); |
421 |
|
|
return AVERROR(ENOMEM); |
422 |
|
|
} |
423 |
|
|
|
424 |
|
|
/* Make sure we use a user-supplied buffer. */ |
425 |
✗✓ |
23 |
if ((ret = ff_reget_buffer(avctx, ctx->final_frame, 0)) < 0) { |
426 |
|
|
av_log(avctx, AV_LOG_ERROR, "Could not make frame writable.\n"); |
427 |
|
|
return ret; |
428 |
|
|
} |
429 |
|
|
|
430 |
|
|
/* Draw cursor. */ |
431 |
✗✓ |
23 |
if (!skip_cursor) { |
432 |
|
23 |
memcpy(ctx->cursor_buf, src + CURSOR_OFFSET, sizeof(ctx->cursor_buf)); |
433 |
|
23 |
fic_draw_cursor(avctx, cur_x, cur_y); |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
skip: |
437 |
|
121 |
*got_frame = 1; |
438 |
✗✓ |
121 |
if ((ret = av_frame_ref(data, ctx->final_frame)) < 0) |
439 |
|
|
return ret; |
440 |
|
|
|
441 |
|
121 |
return avpkt->size; |
442 |
|
|
} |
443 |
|
|
|
444 |
|
2 |
static av_cold int fic_decode_close(AVCodecContext *avctx) |
445 |
|
|
{ |
446 |
|
2 |
FICContext *ctx = avctx->priv_data; |
447 |
|
|
|
448 |
|
2 |
av_freep(&ctx->slice_data); |
449 |
|
2 |
av_frame_free(&ctx->final_frame); |
450 |
|
2 |
av_frame_free(&ctx->frame); |
451 |
|
|
|
452 |
|
2 |
return 0; |
453 |
|
|
} |
454 |
|
|
|
455 |
|
2 |
static av_cold int fic_decode_init(AVCodecContext *avctx) |
456 |
|
|
{ |
457 |
|
2 |
FICContext *ctx = avctx->priv_data; |
458 |
|
|
|
459 |
|
|
/* Initialize various context values */ |
460 |
|
2 |
ctx->avctx = avctx; |
461 |
|
2 |
ctx->aligned_width = FFALIGN(avctx->width, 16); |
462 |
|
2 |
ctx->aligned_height = FFALIGN(avctx->height, 16); |
463 |
|
|
|
464 |
|
2 |
avctx->pix_fmt = AV_PIX_FMT_YUV420P; |
465 |
|
2 |
avctx->bits_per_raw_sample = 8; |
466 |
|
|
|
467 |
|
2 |
ctx->frame = av_frame_alloc(); |
468 |
✗✓ |
2 |
if (!ctx->frame) |
469 |
|
|
return AVERROR(ENOMEM); |
470 |
|
|
|
471 |
|
2 |
return 0; |
472 |
|
|
} |
473 |
|
|
|
474 |
|
|
static const AVOption options[] = { |
475 |
|
|
{ "skip_cursor", "skip the cursor", offsetof(FICContext, skip_cursor), AV_OPT_TYPE_BOOL, {.i64 = 0 }, 0, 1, AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_VIDEO_PARAM }, |
476 |
|
|
{ NULL }, |
477 |
|
|
}; |
478 |
|
|
|
479 |
|
|
static const AVClass fic_decoder_class = { |
480 |
|
|
.class_name = "FIC decoder", |
481 |
|
|
.item_name = av_default_item_name, |
482 |
|
|
.option = options, |
483 |
|
|
.version = LIBAVUTIL_VERSION_INT, |
484 |
|
|
}; |
485 |
|
|
|
486 |
|
|
AVCodec ff_fic_decoder = { |
487 |
|
|
.name = "fic", |
488 |
|
|
.long_name = NULL_IF_CONFIG_SMALL("Mirillis FIC"), |
489 |
|
|
.type = AVMEDIA_TYPE_VIDEO, |
490 |
|
|
.id = AV_CODEC_ID_FIC, |
491 |
|
|
.priv_data_size = sizeof(FICContext), |
492 |
|
|
.init = fic_decode_init, |
493 |
|
|
.decode = fic_decode_frame, |
494 |
|
|
.close = fic_decode_close, |
495 |
|
|
.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_SLICE_THREADS, |
496 |
|
|
.priv_class = &fic_decoder_class, |
497 |
|
|
}; |