GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/rawdec.c Lines: 169 279 60.6 %
Date: 2020-10-23 17:01:47 Branches: 161 294 54.8 %

Line Branch Exec Source
1
/*
2
 * Raw Video Decoder
3
 * Copyright (c) 2001 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
/**
23
 * @file
24
 * Raw Video Decoder
25
 */
26
27
#include "avcodec.h"
28
#include "bswapdsp.h"
29
#include "decode.h"
30
#include "get_bits.h"
31
#include "internal.h"
32
#include "raw.h"
33
#include "libavutil/avassert.h"
34
#include "libavutil/buffer.h"
35
#include "libavutil/common.h"
36
#include "libavutil/intreadwrite.h"
37
#include "libavutil/imgutils.h"
38
#include "libavutil/opt.h"
39
40
typedef struct RawVideoContext {
41
    AVClass *av_class;
42
    AVBufferRef *palette;
43
    int frame_size;  /* size of the frame in bytes */
44
    int flip;
45
    int is_1_2_4_8_bpp; // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
46
    int is_mono;
47
    int is_pal8;
48
    int is_nut_mono;
49
    int is_nut_pal8;
50
    int is_yuv2;
51
    int is_lt_16bpp; // 16bpp pixfmt and bits_per_coded_sample < 16
52
    int tff;
53
54
    BswapDSPContext bbdsp;
55
    void *bitstream_buf;
56
    unsigned int bitstream_buf_size;
57
} RawVideoContext;
58
59
static const AVOption options[]={
60
{"top", "top field first", offsetof(RawVideoContext, tff), AV_OPT_TYPE_BOOL, {.i64 = -1}, -1, 1, AV_OPT_FLAG_DECODING_PARAM|AV_OPT_FLAG_VIDEO_PARAM},
61
{NULL}
62
};
63
64
static const AVClass rawdec_class = {
65
    .class_name = "rawdec",
66
    .option     = options,
67
    .version    = LIBAVUTIL_VERSION_INT,
68
};
69
70
1112
static av_cold int raw_init_decoder(AVCodecContext *avctx)
71
{
72
1112
    RawVideoContext *context = avctx->priv_data;
73
    const AVPixFmtDescriptor *desc;
74
75
1112
    ff_bswapdsp_init(&context->bbdsp);
76
77
1112
    if (   avctx->codec_tag == MKTAG('r','a','w',' ')
78
1112
        || avctx->codec_tag == MKTAG('N','O','1','6'))
79
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
80
                                      avctx->bits_per_coded_sample);
81
1112
    else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
82
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_avi,
83
                                      avctx->bits_per_coded_sample);
84

1112
    else if (avctx->codec_tag && (avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0))
85
563
        avctx->pix_fmt = avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
86

549
    else if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample)
87
14
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_avi,
88
14
                                      avctx->bits_per_coded_sample);
89
90
1112
    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
91
1112
    if (!desc) {
92
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel format.\n");
93
        return AVERROR(EINVAL);
94
    }
95
96
1112
    if (desc->flags & (AV_PIX_FMT_FLAG_PAL | FF_PSEUDOPAL)) {
97
11
        context->palette = av_buffer_alloc(AVPALETTE_SIZE);
98
11
        if (!context->palette)
99
            return AVERROR(ENOMEM);
100
#if FF_API_PSEUDOPAL
101
11
        if (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
102
3
            avpriv_set_systematic_pal2((uint32_t*)context->palette->data, avctx->pix_fmt);
103
#endif
104
        else {
105
8
            memset(context->palette->data, 0, AVPALETTE_SIZE);
106
8
            if (avctx->bits_per_coded_sample == 1)
107
8
                memset(context->palette->data, 0xff, 4);
108
        }
109
    }
110
111
1112
    if ((avctx->extradata_size >= 9 &&
112
2
         !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
113
1110
        avctx->codec_tag == MKTAG('c','y','u','v') ||
114
1110
        avctx->codec_tag == MKTAG(3, 0, 0, 0) ||
115
1110
        avctx->codec_tag == MKTAG('W','R','A','W'))
116
2
        context->flip = 1;
117
118
1112
    if (avctx->pix_fmt == AV_PIX_FMT_MONOWHITE ||
119
1110
        avctx->pix_fmt == AV_PIX_FMT_MONOBLACK)
120
4
        context->is_mono = 1;
121
1108
    else if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
122
8
        context->is_pal8 = 1;
123
124
1112
    if (avctx->codec_tag == MKTAG('B','1','W','0') ||
125
1111
        avctx->codec_tag == MKTAG('B','0','W','1'))
126
2
        context->is_nut_mono = 1;
127
1110
    else if (avctx->codec_tag == MKTAG('P','A','L',8))
128
        context->is_nut_pal8 = 1;
129
130
1112
    if (avctx->codec_tag == AV_RL32("yuv2") &&
131
        avctx->pix_fmt   == AV_PIX_FMT_YUYV422)
132
        context->is_yuv2 = 1;
133
134
1112
    return 0;
135
}
136
137
static void flip(AVCodecContext *avctx, AVFrame *frame)
138
{
139
    frame->data[0]     += frame->linesize[0] * (avctx->height - 1);
140
    frame->linesize[0] *= -1;
141
}
142
143
/*
144
 * Scale sample to 16-bit resolution
145
 */
146
#define SCALE16(x, bits) (((x) << (16 - (bits))) | ((x) >> (2 * (bits) - 16)))
147
148
/**
149
 * Scale buffer to 16 bits per coded sample resolution
150
 */
151
#define MKSCALE16(name, r16, w16) \
152
static void name(AVCodecContext *avctx, uint8_t * dst, const uint8_t *buf, int buf_size, int packed) \
153
{ \
154
    int i; \
155
    if (!packed) { \
156
        for (i = 0; i + 1 < buf_size; i += 2) \
157
            w16(dst + i, SCALE16(r16(buf + i), avctx->bits_per_coded_sample)); \
158
    } else { \
159
        GetBitContext gb; \
160
        init_get_bits(&gb, buf, buf_size * 8); \
161
        for (i = 0; i < avctx->width * avctx->height; i++) { \
162
            int sample = get_bits(&gb, avctx->bits_per_coded_sample); \
163
            w16(dst + i*2, SCALE16(sample, avctx->bits_per_coded_sample)); \
164
        } \
165
   } \
166
}
167
168
MKSCALE16(scale16be, AV_RB16, AV_WB16)
169
MKSCALE16(scale16le, AV_RL16, AV_WL16)
170
171
21388
static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
172
                      AVPacket *avpkt)
173
{
174
    const AVPixFmtDescriptor *desc;
175
21388
    RawVideoContext *context       = avctx->priv_data;
176
21388
    const uint8_t *buf             = avpkt->data;
177
21388
    int buf_size                   = avpkt->size;
178
21388
    int linesize_align             = 4;
179
    int stride;
180
    int res, len;
181
    int need_copy;
182
183
21388
    AVFrame   *frame   = data;
184
185
21388
    if (avctx->width <= 0) {
186
        av_log(avctx, AV_LOG_ERROR, "width is not set\n");
187
        return AVERROR_INVALIDDATA;
188
    }
189
21388
    if (avctx->height <= 0) {
190
        av_log(avctx, AV_LOG_ERROR, "height is not set\n");
191
        return AVERROR_INVALIDDATA;
192
    }
193
194
21388
    if (context->is_nut_mono)
195
2
        stride = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
196
21386
    else if (context->is_nut_pal8)
197
        stride = avctx->width;
198
    else
199
21386
        stride = avpkt->size / avctx->height;
200
201
21388
    av_log(avctx, AV_LOG_DEBUG, "PACKET SIZE: %d, STRIDE: %d\n", avpkt->size, stride);
202
203

21388
    if (stride == 0 || avpkt->size < stride * avctx->height) {
204
1
        av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size);
205
1
        return AVERROR_INVALIDDATA;
206
    }
207
208
21387
    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
209
210

21387
    if ((avctx->bits_per_coded_sample == 8 || avctx->bits_per_coded_sample == 4 ||
211

21387
         avctx->bits_per_coded_sample == 2 || avctx->bits_per_coded_sample == 1 ||
212

21187
         (avctx->bits_per_coded_sample == 0 && (context->is_nut_pal8 || context->is_mono)) ) &&
213

202
        (context->is_mono || context->is_pal8) &&
214

202
        (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' ') ||
215

2
                context->is_nut_mono || context->is_nut_pal8)) {
216
202
        context->is_1_2_4_8_bpp = 1;
217
202
        if (context->is_mono) {
218
2
            int row_bytes = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
219
2
            context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
220
2
                                                           FFALIGN(row_bytes, 16) * 8,
221
                                                           avctx->height, 1);
222
        } else
223
200
            context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
224
200
                                                           FFALIGN(avctx->width, 16),
225
                                                           avctx->height, 1);
226
    } else {
227

21185
        context->is_lt_16bpp = av_get_bits_per_pixel(desc) == 16 && avctx->bits_per_coded_sample > 8 && avctx->bits_per_coded_sample < 16;
228
21185
        context->frame_size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width,
229
                                                       avctx->height, 1);
230
    }
231
21387
    if (context->frame_size < 0)
232
        return context->frame_size;
233
234


21387
    need_copy = !avpkt->buf || context->is_1_2_4_8_bpp || context->is_yuv2 || context->is_lt_16bpp;
235
236
21387
    frame->pict_type        = AV_PICTURE_TYPE_I;
237
21387
    frame->key_frame        = 1;
238
239
21387
    res = ff_decode_frame_props(avctx, frame);
240
21387
    if (res < 0)
241
        return res;
242
243
21387
    frame->pkt_pos      = avctx->internal->last_pkt_props->pos;
244
21387
    frame->pkt_duration = avctx->internal->last_pkt_props->duration;
245
246
21387
    if (context->tff >= 0) {
247
        frame->interlaced_frame = 1;
248
        frame->top_field_first  = context->tff;
249
    }
250
251
21387
    if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
252
        return res;
253
254
21387
    if (need_copy)
255
202
        frame->buf[0] = av_buffer_alloc(FFMAX(context->frame_size, buf_size));
256
    else
257
21185
        frame->buf[0] = av_buffer_ref(avpkt->buf);
258
21387
    if (!frame->buf[0])
259
        return AVERROR(ENOMEM);
260
261
    // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
262
21387
    if (context->is_1_2_4_8_bpp) {
263
202
        int i, j, row_pix = 0;
264
202
        uint8_t *dst = frame->buf[0]->data;
265
202
        buf_size = context->frame_size - (context->is_pal8 ? AVPALETTE_SIZE : 0);
266

204
        if (avctx->bits_per_coded_sample == 8 || context->is_nut_pal8 || context->is_mono) {
267
2
            int pix_per_byte = context->is_mono ? 8 : 1;
268

25346
            for (i = 0, j = 0; j < buf_size && i<avpkt->size; i++, j++) {
269
25344
                dst[j] = buf[i];
270
25344
                row_pix += pix_per_byte;
271
25344
                if (row_pix >= avctx->width) {
272
576
                    i += stride - (i % stride) - 1;
273
576
                    j += 16 - (j % 16) - 1;
274
576
                    row_pix = 0;
275
                }
276
            }
277
200
        } else if (avctx->bits_per_coded_sample == 4) {
278
            for (i = 0, j = 0; 2 * j + 1 < buf_size && i<avpkt->size; i++, j++) {
279
                dst[2 * j + 0] = buf[i] >> 4;
280
                dst[2 * j + 1] = buf[i] & 15;
281
                row_pix += 2;
282
                if (row_pix >= avctx->width) {
283
                    i += stride - (i % stride) - 1;
284
                    j += 8 - (j % 8) - 1;
285
                    row_pix = 0;
286
                }
287
            }
288
200
        } else if (avctx->bits_per_coded_sample == 2) {
289
            for (i = 0, j = 0; 4 * j + 3 < buf_size && i<avpkt->size; i++, j++) {
290
                dst[4 * j + 0] = buf[i] >> 6;
291
                dst[4 * j + 1] = buf[i] >> 4 & 3;
292
                dst[4 * j + 2] = buf[i] >> 2 & 3;
293
                dst[4 * j + 3] = buf[i]      & 3;
294
                row_pix += 4;
295
                if (row_pix >= avctx->width) {
296
                    i += stride - (i % stride) - 1;
297
                    j += 4 - (j % 4) - 1;
298
                    row_pix = 0;
299
                }
300
            }
301
        } else {
302
200
            av_assert0(avctx->bits_per_coded_sample == 1);
303

1909500
            for (i = 0, j = 0; 8 * j + 7 < buf_size && i<avpkt->size; i++, j++) {
304
1909300
                dst[8 * j + 0] = buf[i] >> 7;
305
1909300
                dst[8 * j + 1] = buf[i] >> 6 & 1;
306
1909300
                dst[8 * j + 2] = buf[i] >> 5 & 1;
307
1909300
                dst[8 * j + 3] = buf[i] >> 4 & 1;
308
1909300
                dst[8 * j + 4] = buf[i] >> 3 & 1;
309
1909300
                dst[8 * j + 5] = buf[i] >> 2 & 1;
310
1909300
                dst[8 * j + 6] = buf[i] >> 1 & 1;
311
1909300
                dst[8 * j + 7] = buf[i]      & 1;
312
1909300
                row_pix += 8;
313
1909300
                if (row_pix >= avctx->width) {
314
44900
                    i += stride - (i % stride) - 1;
315
44900
                    j += 2 - (j % 2) - 1;
316
44900
                    row_pix = 0;
317
                }
318
            }
319
        }
320
202
        linesize_align = 16;
321
202
        buf = dst;
322
21185
    } else if (context->is_lt_16bpp) {
323
        uint8_t *dst = frame->buf[0]->data;
324
        int packed = (avctx->codec_tag & 0xFFFFFF) == MKTAG('B','I','T', 0);
325
        int swap   =  avctx->codec_tag >> 24;
326
327
        if (packed && swap) {
328
            av_fast_padded_malloc(&context->bitstream_buf, &context->bitstream_buf_size, buf_size);
329
            if (!context->bitstream_buf)
330
                return AVERROR(ENOMEM);
331
            if (swap == 16)
332
                context->bbdsp.bswap16_buf(context->bitstream_buf, (const uint16_t*)buf, buf_size / 2);
333
            else if (swap == 32)
334
                context->bbdsp.bswap_buf(context->bitstream_buf, (const uint32_t*)buf, buf_size / 4);
335
            else
336
                return AVERROR_INVALIDDATA;
337
            buf = context->bitstream_buf;
338
        }
339
340
        if (desc->flags & AV_PIX_FMT_FLAG_BE)
341
            scale16be(avctx, dst, buf, buf_size, packed);
342
        else
343
            scale16le(avctx, dst, buf, buf_size, packed);
344
345
        buf = dst;
346
21185
    } else if (need_copy) {
347
        memcpy(frame->buf[0]->data, buf, buf_size);
348
        buf = frame->buf[0]->data;
349
    }
350
351
21387
    if (avctx->codec_tag == MKTAG('A', 'V', '1', 'x') ||
352
21387
        avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))
353
        buf += buf_size - context->frame_size;
354
355
21387
    len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);
356

21387
    if (buf_size < len && ((avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0) || !need_copy)) {
357
        av_log(avctx, AV_LOG_ERROR, "Invalid buffer size, packet size %d < expected frame_size %d\n", buf_size, len);
358
        av_buffer_unref(&frame->buf[0]);
359
        return AVERROR(EINVAL);
360
    }
361
362
21387
    if ((res = av_image_fill_arrays(frame->data, frame->linesize,
363
                                    buf, avctx->pix_fmt,
364
                                    avctx->width, avctx->height, 1)) < 0) {
365
        av_buffer_unref(&frame->buf[0]);
366
        return res;
367
    }
368
369
21387
    if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
370
        int pal_size;
371
200
        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE,
372
                                                     &pal_size);
373
        int ret;
374
375

200
        if (pal && pal_size != AVPALETTE_SIZE) {
376
            av_log(avctx, AV_LOG_ERROR, "Palette size %d is wrong\n", pal_size);
377
            pal = NULL;
378
        }
379
380
200
        if (!context->palette)
381
            context->palette = av_buffer_alloc(AVPALETTE_SIZE);
382
200
        if (!context->palette) {
383
            av_buffer_unref(&frame->buf[0]);
384
            return AVERROR(ENOMEM);
385
        }
386
200
        ret = av_buffer_make_writable(&context->palette);
387
200
        if (ret < 0) {
388
            av_buffer_unref(&frame->buf[0]);
389
            return ret;
390
        }
391
392
200
        if (pal) {
393
4
            memcpy(context->palette->data, pal, AVPALETTE_SIZE);
394
4
            frame->palette_has_changed = 1;
395
196
        } else if (context->is_nut_pal8) {
396
            int vid_size = avctx->width * avctx->height;
397
            int pal_size = avpkt->size - vid_size;
398
399
            if (avpkt->size > vid_size && pal_size <= AVPALETTE_SIZE) {
400
                pal = avpkt->data + vid_size;
401
                memcpy(context->palette->data, pal, pal_size);
402
                frame->palette_has_changed = 1;
403
            }
404
        }
405
    }
406
407
21387
    if ((avctx->pix_fmt==AV_PIX_FMT_RGB24    ||
408
21101
        avctx->pix_fmt==AV_PIX_FMT_BGR24     ||
409
20699
        avctx->pix_fmt==AV_PIX_FMT_GRAY8     ||
410
20698
        avctx->pix_fmt==AV_PIX_FMT_RGB555LE  ||
411
20297
        avctx->pix_fmt==AV_PIX_FMT_RGB555BE  ||
412
20297
        avctx->pix_fmt==AV_PIX_FMT_RGB565LE  ||
413
20096
        avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||
414
20095
        avctx->pix_fmt==AV_PIX_FMT_MONOBLACK ||
415
20094
        avctx->pix_fmt==AV_PIX_FMT_PAL8) &&
416
1493
        FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)
417
1443
        frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
418
419

21387
    if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&
420
        FFALIGN(frame->linesize[0], linesize_align) * avctx->height +
421
        FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {
422
        int la0 = FFALIGN(frame->linesize[0], linesize_align);
423
        frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;
424
        frame->linesize[0] = la0;
425
        frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);
426
    }
427
428

21387
    if ((avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) ||
429
21187
        (desc->flags & FF_PSEUDOPAL)) {
430
201
        frame->buf[1]  = av_buffer_ref(context->palette);
431
201
        if (!frame->buf[1]) {
432
            av_buffer_unref(&frame->buf[0]);
433
            return AVERROR(ENOMEM);
434
        }
435
201
        frame->data[1] = frame->buf[1]->data;
436
    }
437
438
21387
    if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&
439
402
        ((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)
440
352
        frame->linesize[0] = (frame->linesize[0] + 3) & ~3;
441
442
21387
    if (context->flip)
443
        flip(avctx, frame);
444
445
21387
    if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2') ||
446
21387
        avctx->codec_tag == MKTAG('Y', 'V', '1', '6') ||
447
21387
        avctx->codec_tag == MKTAG('Y', 'V', '2', '4') ||
448
21387
        avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
449
        FFSWAP(uint8_t *, frame->data[1], frame->data[2]);
450
451

21387
    if (avctx->codec_tag == AV_RL32("I420") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {
452
        frame->data[1] = frame->data[1] +  (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;
453
        frame->data[2] = frame->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;
454
    }
455
456
21387
    if (avctx->codec_tag == AV_RL32("yuv2") &&
457
        avctx->pix_fmt   == AV_PIX_FMT_YUYV422) {
458
        int x, y;
459
        uint8_t *line = frame->data[0];
460
        for (y = 0; y < avctx->height; y++) {
461
            for (x = 0; x < avctx->width; x++)
462
                line[2 * x + 1] ^= 0x80;
463
            line += frame->linesize[0];
464
        }
465
    }
466
467
21387
    if (avctx->codec_tag == AV_RL32("b64a") &&
468
        avctx->pix_fmt   == AV_PIX_FMT_RGBA64BE) {
469
        uint8_t *dst = frame->data[0];
470
        uint64_t v;
471
        int x, y;
472
        for (y = 0; y < avctx->height; y++) {
473
            for (x = 0; x >> 3 < avctx->width; x += 8) {
474
                v = AV_RB64(&dst[x]);
475
                AV_WB64(&dst[x], v << 16 | v >> 48);
476
            }
477
            dst += frame->linesize[0];
478
        }
479
    }
480
481
21387
    if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
482
        frame->interlaced_frame = 1;
483
        if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
484
            frame->top_field_first = 1;
485
    }
486
487
21387
    *got_frame = 1;
488
21387
    return buf_size;
489
}
490
491
1112
static av_cold int raw_close_decoder(AVCodecContext *avctx)
492
{
493
1112
    RawVideoContext *context = avctx->priv_data;
494
495
1112
    av_buffer_unref(&context->palette);
496
1112
    return 0;
497
}
498
499
AVCodec ff_rawvideo_decoder = {
500
    .name           = "rawvideo",
501
    .long_name      = NULL_IF_CONFIG_SMALL("raw video"),
502
    .type           = AVMEDIA_TYPE_VIDEO,
503
    .id             = AV_CODEC_ID_RAWVIDEO,
504
    .priv_data_size = sizeof(RawVideoContext),
505
    .init           = raw_init_decoder,
506
    .close          = raw_close_decoder,
507
    .decode         = raw_decode,
508
    .priv_class     = &rawdec_class,
509
    .capabilities   = AV_CODEC_CAP_PARAM_CHANGE,
510
};