Coverage Report

Created: 2024-09-06 07:53

/src/ffmpeg/libavcodec/pnmenc.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * PNM image format
3
 * Copyright (c) 2002, 2003 Fabrice Bellard
4
 *
5
 * This file is part of FFmpeg.
6
 *
7
 * FFmpeg is free software; you can redistribute it and/or
8
 * modify it under the terms of the GNU Lesser General Public
9
 * License as published by the Free Software Foundation; either
10
 * version 2.1 of the License, or (at your option) any later version.
11
 *
12
 * FFmpeg is distributed in the hope that it will be useful,
13
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
15
 * Lesser General Public License for more details.
16
 *
17
 * You should have received a copy of the GNU Lesser General Public
18
 * License along with FFmpeg; if not, write to the Free Software
19
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20
 */
21
22
#include "config_components.h"
23
24
#include "libavutil/intreadwrite.h"
25
#include "libavutil/imgutils.h"
26
#include "libavutil/pixdesc.h"
27
#include "libavutil/float2half.h"
28
#include "avcodec.h"
29
#include "codec_internal.h"
30
#include "encode.h"
31
32
typedef struct PHMEncContext {
33
    Float2HalfTables f2h_tables;
34
} PHMEncContext;
35
36
static int pnm_encode_frame(AVCodecContext *avctx, AVPacket *pkt,
37
                            const AVFrame *p, int *got_packet)
38
39.0k
{
39
39.0k
    PHMEncContext *s = avctx->priv_data;
40
39.0k
    uint8_t *bytestream, *bytestream_start, *bytestream_end;
41
39.0k
    int i, h, h1, c, n, linesize, ret;
42
39.0k
    int size = av_image_get_buffer_size(avctx->pix_fmt,
43
39.0k
                                        avctx->width, avctx->height, 1);
44
45
39.0k
    if (size < 0)
46
0
        return size;
47
48
39.0k
    if ((ret = ff_get_encode_buffer(avctx, pkt, size + 200U, 0)) < 0)
49
0
        return ret;
50
51
39.0k
    bytestream_start =
52
39.0k
    bytestream       = pkt->data;
53
39.0k
    bytestream_end   = pkt->data + pkt->size;
54
55
39.0k
    h  = avctx->height;
56
39.0k
    h1 = h;
57
39.0k
    switch (avctx->pix_fmt) {
58
7.40k
    case AV_PIX_FMT_MONOWHITE:
59
7.40k
        c  = '4';
60
7.40k
        n  = (avctx->width + 7) >> 3;
61
7.40k
        break;
62
5.10k
    case AV_PIX_FMT_GRAY8:
63
5.10k
        c  = '5';
64
5.10k
        n  = avctx->width;
65
5.10k
        break;
66
2.12k
    case AV_PIX_FMT_GRAY16BE:
67
2.12k
        c  = '5';
68
2.12k
        n  = avctx->width * 2;
69
2.12k
        break;
70
2.64k
    case AV_PIX_FMT_RGB24:
71
2.64k
        c  = '6';
72
2.64k
        n  = avctx->width * 3;
73
2.64k
        break;
74
822
    case AV_PIX_FMT_RGB48BE:
75
822
        c  = '6';
76
822
        n  = avctx->width * 6;
77
822
        break;
78
3.13k
    case AV_PIX_FMT_YUV420P:
79
3.13k
        if (avctx->width & 1 || avctx->height & 1) {
80
24
            av_log(avctx, AV_LOG_ERROR, "pgmyuv needs even width and height\n");
81
24
            return AVERROR(EINVAL);
82
24
        }
83
3.11k
        c  = '5';
84
3.11k
        n  = avctx->width;
85
3.11k
        h1 = (h * 3) / 2;
86
3.11k
        break;
87
2.29k
    case AV_PIX_FMT_YUV420P16BE:
88
2.29k
        c  = '5';
89
2.29k
        n  = avctx->width * 2;
90
2.29k
        h1 = (h * 3) / 2;
91
2.29k
        break;
92
315
    case AV_PIX_FMT_GBRPF32BE:
93
2.26k
    case AV_PIX_FMT_GBRPF32LE:
94
2.26k
        if (avctx->codec_id == AV_CODEC_ID_PFM) {
95
1.31k
        c  = 'F';
96
1.31k
        n  = avctx->width * 4;
97
1.31k
        } else {
98
948
            c  = 'H';
99
948
            n  = avctx->width * 2;
100
948
        }
101
2.26k
        break;
102
4.24k
    case AV_PIX_FMT_GRAYF32BE:
103
13.2k
    case AV_PIX_FMT_GRAYF32LE:
104
13.2k
        if (avctx->codec_id == AV_CODEC_ID_PFM) {
105
6.46k
        c  = 'f';
106
6.46k
        n  = avctx->width * 4;
107
6.81k
        } else {
108
6.81k
            c  = 'h';
109
6.81k
            n  = avctx->width * 2;
110
6.81k
        }
111
13.2k
        break;
112
0
    default:
113
0
        return -1;
114
39.0k
    }
115
39.0k
    snprintf(bytestream, bytestream_end - bytestream,
116
39.0k
             "P%c\n%d %d\n", c, avctx->width, h1);
117
39.0k
    bytestream += strlen(bytestream);
118
39.0k
    if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32LE ||
119
39.0k
        avctx->pix_fmt == AV_PIX_FMT_GRAYF32LE ||
120
39.0k
        avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE ||
121
39.0k
        avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE)
122
15.5k
        snprintf(bytestream, bytestream_end - bytestream,
123
15.5k
                 "%f\n", (avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE ||
124
15.5k
                          avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE) ? 1.f: -1.f);
125
39.0k
    bytestream += strlen(bytestream);
126
39.0k
    if (avctx->pix_fmt != AV_PIX_FMT_MONOWHITE &&
127
39.0k
        avctx->pix_fmt != AV_PIX_FMT_GBRPF32LE &&
128
39.0k
        avctx->pix_fmt != AV_PIX_FMT_GRAYF32LE &&
129
39.0k
        avctx->pix_fmt != AV_PIX_FMT_GBRPF32BE &&
130
39.0k
        avctx->pix_fmt != AV_PIX_FMT_GRAYF32BE) {
131
16.1k
        int maxdepth = (1 << av_pix_fmt_desc_get(avctx->pix_fmt)->comp[0].depth) - 1;
132
16.1k
        snprintf(bytestream, bytestream_end - bytestream,
133
16.1k
                 "%d\n", maxdepth);
134
16.1k
        bytestream += strlen(bytestream);
135
16.1k
    }
136
137
39.0k
    if ((avctx->pix_fmt == AV_PIX_FMT_GBRPF32LE ||
138
39.0k
         avctx->pix_fmt == AV_PIX_FMT_GBRPF32BE) && c == 'F') {
139
        /* PFM is encoded from bottom to top */
140
1.31k
        const float *r = (const float *)(p->data[2] + p->linesize[2] * (avctx->height - 1));
141
1.31k
        const float *g = (const float *)(p->data[0] + p->linesize[0] * (avctx->height - 1));
142
1.31k
        const float *b = (const float *)(p->data[1] + p->linesize[1] * (avctx->height - 1));
143
144
847k
        for (int i = 0; i < avctx->height; i++) {
145
6.82M
            for (int j = 0; j < avctx->width; j++) {
146
5.97M
                AV_WN32(bytestream + 0, av_float2int(r[j]));
147
5.97M
                AV_WN32(bytestream + 4, av_float2int(g[j]));
148
5.97M
                AV_WN32(bytestream + 8, av_float2int(b[j]));
149
5.97M
                bytestream += 12;
150
5.97M
            }
151
152
845k
            r -= p->linesize[2] / 4;
153
845k
            g -= p->linesize[0] / 4;
154
845k
            b -= p->linesize[1] / 4;
155
845k
        }
156
37.7k
    } else if ((avctx->pix_fmt == AV_PIX_FMT_GRAYF32LE ||
157
37.7k
                avctx->pix_fmt == AV_PIX_FMT_GRAYF32BE) && c == 'f') {
158
        /* PFM is encoded from bottom to top */
159
6.46k
        const float *g = (const float *)(p->data[0] + p->linesize[0] * (avctx->height - 1));
160
161
705k
        for (int i = 0; i < avctx->height; i++) {
162
4.21M
            for (int j = 0; j < avctx->width; j++) {
163
3.51M
                AV_WN32(bytestream, av_float2int(g[j]));
164
3.51M
                bytestream += 4;
165
3.51M
            }
166
167
698k
            g -= p->linesize[0] / 4;
168
698k
        }
169
31.2k
    } else if (avctx->pix_fmt == AV_PIX_FMT_GBRPF32 && c == 'H') {
170
948
        const float *r = (const float *)p->data[2];
171
948
        const float *g = (const float *)p->data[0];
172
948
        const float *b = (const float *)p->data[1];
173
174
939k
        for (int i = 0; i < avctx->height; i++) {
175
7.24M
            for (int j = 0; j < avctx->width; j++) {
176
6.30M
                AV_WN16(bytestream + 0, float2half(av_float2int(r[j]), &s->f2h_tables));
177
6.30M
                AV_WN16(bytestream + 2, float2half(av_float2int(g[j]), &s->f2h_tables));
178
6.30M
                AV_WN16(bytestream + 4, float2half(av_float2int(b[j]), &s->f2h_tables));
179
6.30M
                bytestream += 6;
180
6.30M
            }
181
182
938k
            r += p->linesize[2] / 4;
183
938k
            g += p->linesize[0] / 4;
184
938k
            b += p->linesize[1] / 4;
185
938k
        }
186
30.3k
    } else if (avctx->pix_fmt == AV_PIX_FMT_GRAYF32 && c == 'h') {
187
6.81k
        const float *g = (const float *)p->data[0];
188
189
616k
        for (int i = 0; i < avctx->height; i++) {
190
3.53M
            for (int j = 0; j < avctx->width; j++) {
191
2.92M
                AV_WN16(bytestream, float2half(av_float2int(g[j]), &s->f2h_tables));
192
2.92M
                bytestream += 2;
193
2.92M
            }
194
195
610k
            g += p->linesize[0] / 4;
196
610k
        }
197
23.5k
    } else {
198
23.5k
        const uint8_t *ptr = p->data[0];
199
23.5k
        linesize = p->linesize[0];
200
5.71M
        for (i = 0; i < h; i++) {
201
5.69M
            memcpy(bytestream, ptr, n);
202
5.69M
            bytestream += n;
203
5.69M
            ptr        += linesize;
204
5.69M
        }
205
23.5k
    }
206
207
39.0k
    if (avctx->pix_fmt == AV_PIX_FMT_YUV420P || avctx->pix_fmt == AV_PIX_FMT_YUV420P16BE) {
208
5.40k
        const uint8_t *ptr1 = p->data[1], *ptr2 = p->data[2];
209
5.40k
        h >>= 1;
210
5.40k
        n >>= 1;
211
496k
        for (i = 0; i < h; i++) {
212
490k
            memcpy(bytestream, ptr1, n);
213
490k
            bytestream += n;
214
490k
            memcpy(bytestream, ptr2, n);
215
490k
            bytestream += n;
216
490k
                ptr1 += p->linesize[1];
217
490k
                ptr2 += p->linesize[2];
218
490k
        }
219
5.40k
    }
220
39.0k
    av_shrink_packet(pkt, bytestream - bytestream_start);
221
39.0k
    *got_packet = 1;
222
223
39.0k
    return 0;
224
39.0k
}
225
226
#if CONFIG_PGM_ENCODER
227
const FFCodec ff_pgm_encoder = {
228
    .p.name         = "pgm",
229
    CODEC_LONG_NAME("PGM (Portable GrayMap) image"),
230
    .p.type         = AVMEDIA_TYPE_VIDEO,
231
    .p.id           = AV_CODEC_ID_PGM,
232
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
233
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
234
    .p.pix_fmts     = (const enum AVPixelFormat[]){
235
        AV_PIX_FMT_GRAY8, AV_PIX_FMT_GRAY16BE, AV_PIX_FMT_NONE
236
    },
237
};
238
#endif
239
240
#if CONFIG_PGMYUV_ENCODER
241
const FFCodec ff_pgmyuv_encoder = {
242
    .p.name         = "pgmyuv",
243
    CODEC_LONG_NAME("PGMYUV (Portable GrayMap YUV) image"),
244
    .p.type         = AVMEDIA_TYPE_VIDEO,
245
    .p.id           = AV_CODEC_ID_PGMYUV,
246
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
247
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
248
    .p.pix_fmts     = (const enum AVPixelFormat[]){
249
        AV_PIX_FMT_YUV420P, AV_PIX_FMT_YUV420P16BE, AV_PIX_FMT_NONE
250
    },
251
};
252
#endif
253
254
#if CONFIG_PPM_ENCODER
255
const FFCodec ff_ppm_encoder = {
256
    .p.name         = "ppm",
257
    CODEC_LONG_NAME("PPM (Portable PixelMap) image"),
258
    .p.type         = AVMEDIA_TYPE_VIDEO,
259
    .p.id           = AV_CODEC_ID_PPM,
260
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
261
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
262
    .p.pix_fmts     = (const enum AVPixelFormat[]){
263
        AV_PIX_FMT_RGB24, AV_PIX_FMT_RGB48BE, AV_PIX_FMT_NONE
264
    },
265
};
266
#endif
267
268
#if CONFIG_PBM_ENCODER
269
const FFCodec ff_pbm_encoder = {
270
    .p.name         = "pbm",
271
    CODEC_LONG_NAME("PBM (Portable BitMap) image"),
272
    .p.type         = AVMEDIA_TYPE_VIDEO,
273
    .p.id           = AV_CODEC_ID_PBM,
274
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
275
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
276
    .p.pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_MONOWHITE,
277
                                                  AV_PIX_FMT_NONE },
278
};
279
#endif
280
281
#if CONFIG_PFM_ENCODER
282
const FFCodec ff_pfm_encoder = {
283
    .p.name         = "pfm",
284
    CODEC_LONG_NAME("PFM (Portable FloatMap) image"),
285
    .p.type         = AVMEDIA_TYPE_VIDEO,
286
    .p.id           = AV_CODEC_ID_PFM,
287
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
288
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
289
    .p.pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_GBRPF32LE,
290
                                                    AV_PIX_FMT_GRAYF32LE,
291
                                                    AV_PIX_FMT_GBRPF32BE,
292
                                                    AV_PIX_FMT_GRAYF32BE,
293
                                                    AV_PIX_FMT_NONE },
294
};
295
#endif
296
297
#if CONFIG_PHM_ENCODER
298
static av_cold int phm_enc_init(AVCodecContext *avctx)
299
299
{
300
299
    PHMEncContext *s = avctx->priv_data;
301
302
299
    ff_init_float2half_tables(&s->f2h_tables);
303
304
299
    return 0;
305
299
}
306
307
const FFCodec ff_phm_encoder = {
308
    .p.name         = "phm",
309
    CODEC_LONG_NAME("PHM (Portable HalfFloatMap) image"),
310
    .p.type         = AVMEDIA_TYPE_VIDEO,
311
    .p.id           = AV_CODEC_ID_PHM,
312
    .p.capabilities = AV_CODEC_CAP_DR1 | AV_CODEC_CAP_ENCODER_REORDERED_OPAQUE,
313
    .priv_data_size = sizeof(PHMEncContext),
314
    .init           = phm_enc_init,
315
    FF_CODEC_ENCODE_CB(pnm_encode_frame),
316
    .p.pix_fmts     = (const enum AVPixelFormat[]){ AV_PIX_FMT_GBRPF32,
317
                                                    AV_PIX_FMT_GRAYF32,
318
                                                    AV_PIX_FMT_NONE },
319
};
320
#endif