GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/rawdec.c Lines: 169 279 60.6 %
Date: 2020-08-14 10:39:37 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 "get_bits.h"
30
#include "internal.h"
31
#include "raw.h"
32
#include "libavutil/avassert.h"
33
#include "libavutil/buffer.h"
34
#include "libavutil/common.h"
35
#include "libavutil/intreadwrite.h"
36
#include "libavutil/imgutils.h"
37
#include "libavutil/opt.h"
38
39
typedef struct RawVideoContext {
40
    AVClass *av_class;
41
    AVBufferRef *palette;
42
    int frame_size;  /* size of the frame in bytes */
43
    int flip;
44
    int is_1_2_4_8_bpp; // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
45
    int is_mono;
46
    int is_pal8;
47
    int is_nut_mono;
48
    int is_nut_pal8;
49
    int is_yuv2;
50
    int is_lt_16bpp; // 16bpp pixfmt and bits_per_coded_sample < 16
51
    int tff;
52
53
    BswapDSPContext bbdsp;
54
    void *bitstream_buf;
55
    unsigned int bitstream_buf_size;
56
} RawVideoContext;
57
58
static const AVOption options[]={
59
{"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},
60
{NULL}
61
};
62
63
static const AVClass rawdec_class = {
64
    .class_name = "rawdec",
65
    .option     = options,
66
    .version    = LIBAVUTIL_VERSION_INT,
67
};
68
69
1112
static av_cold int raw_init_decoder(AVCodecContext *avctx)
70
{
71
1112
    RawVideoContext *context = avctx->priv_data;
72
    const AVPixFmtDescriptor *desc;
73
74
1112
    ff_bswapdsp_init(&context->bbdsp);
75
76
1112
    if (   avctx->codec_tag == MKTAG('r','a','w',' ')
77
1112
        || avctx->codec_tag == MKTAG('N','O','1','6'))
78
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_mov,
79
                                      avctx->bits_per_coded_sample);
80
1112
    else if (avctx->codec_tag == MKTAG('W', 'R', 'A', 'W'))
81
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_avi,
82
                                      avctx->bits_per_coded_sample);
83

1112
    else if (avctx->codec_tag && (avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0))
84
563
        avctx->pix_fmt = avpriv_find_pix_fmt(ff_raw_pix_fmt_tags, avctx->codec_tag);
85

549
    else if (avctx->pix_fmt == AV_PIX_FMT_NONE && avctx->bits_per_coded_sample)
86
14
        avctx->pix_fmt = avpriv_find_pix_fmt(avpriv_pix_fmt_bps_avi,
87
14
                                      avctx->bits_per_coded_sample);
88
89
1112
    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
90
1112
    if (!desc) {
91
        av_log(avctx, AV_LOG_ERROR, "Invalid pixel format.\n");
92
        return AVERROR(EINVAL);
93
    }
94
95
1112
    if (desc->flags & (AV_PIX_FMT_FLAG_PAL | FF_PSEUDOPAL)) {
96
11
        context->palette = av_buffer_alloc(AVPALETTE_SIZE);
97
11
        if (!context->palette)
98
            return AVERROR(ENOMEM);
99
#if FF_API_PSEUDOPAL
100
11
        if (desc->flags & AV_PIX_FMT_FLAG_PSEUDOPAL)
101
3
            avpriv_set_systematic_pal2((uint32_t*)context->palette->data, avctx->pix_fmt);
102
#endif
103
        else {
104
8
            memset(context->palette->data, 0, AVPALETTE_SIZE);
105
8
            if (avctx->bits_per_coded_sample == 1)
106
8
                memset(context->palette->data, 0xff, 4);
107
        }
108
    }
109
110
1112
    if ((avctx->extradata_size >= 9 &&
111
2
         !memcmp(avctx->extradata + avctx->extradata_size - 9, "BottomUp", 9)) ||
112
1110
        avctx->codec_tag == MKTAG('c','y','u','v') ||
113
1110
        avctx->codec_tag == MKTAG(3, 0, 0, 0) ||
114
1110
        avctx->codec_tag == MKTAG('W','R','A','W'))
115
2
        context->flip = 1;
116
117
1112
    if (avctx->pix_fmt == AV_PIX_FMT_MONOWHITE ||
118
1110
        avctx->pix_fmt == AV_PIX_FMT_MONOBLACK)
119
4
        context->is_mono = 1;
120
1108
    else if (avctx->pix_fmt == AV_PIX_FMT_PAL8)
121
8
        context->is_pal8 = 1;
122
123
1112
    if (avctx->codec_tag == MKTAG('B','1','W','0') ||
124
1111
        avctx->codec_tag == MKTAG('B','0','W','1'))
125
2
        context->is_nut_mono = 1;
126
1110
    else if (avctx->codec_tag == MKTAG('P','A','L',8))
127
        context->is_nut_pal8 = 1;
128
129
1112
    if (avctx->codec_tag == AV_RL32("yuv2") &&
130
        avctx->pix_fmt   == AV_PIX_FMT_YUYV422)
131
        context->is_yuv2 = 1;
132
133
1112
    return 0;
134
}
135
136
static void flip(AVCodecContext *avctx, AVFrame *frame)
137
{
138
    frame->data[0]     += frame->linesize[0] * (avctx->height - 1);
139
    frame->linesize[0] *= -1;
140
}
141
142
/*
143
 * Scale sample to 16-bit resolution
144
 */
145
#define SCALE16(x, bits) (((x) << (16 - (bits))) | ((x) >> (2 * (bits) - 16)))
146
147
/**
148
 * Scale buffer to 16 bits per coded sample resolution
149
 */
150
#define MKSCALE16(name, r16, w16) \
151
static void name(AVCodecContext *avctx, uint8_t * dst, const uint8_t *buf, int buf_size, int packed) \
152
{ \
153
    int i; \
154
    if (!packed) { \
155
        for (i = 0; i + 1 < buf_size; i += 2) \
156
            w16(dst + i, SCALE16(r16(buf + i), avctx->bits_per_coded_sample)); \
157
    } else { \
158
        GetBitContext gb; \
159
        init_get_bits(&gb, buf, buf_size * 8); \
160
        for (i = 0; i < avctx->width * avctx->height; i++) { \
161
            int sample = get_bits(&gb, avctx->bits_per_coded_sample); \
162
            w16(dst + i*2, SCALE16(sample, avctx->bits_per_coded_sample)); \
163
        } \
164
   } \
165
}
166
167
MKSCALE16(scale16be, AV_RB16, AV_WB16)
168
MKSCALE16(scale16le, AV_RL16, AV_WL16)
169
170
21388
static int raw_decode(AVCodecContext *avctx, void *data, int *got_frame,
171
                      AVPacket *avpkt)
172
{
173
    const AVPixFmtDescriptor *desc;
174
21388
    RawVideoContext *context       = avctx->priv_data;
175
21388
    const uint8_t *buf             = avpkt->data;
176
21388
    int buf_size                   = avpkt->size;
177
21388
    int linesize_align             = 4;
178
    int stride;
179
    int res, len;
180
    int need_copy;
181
182
21388
    AVFrame   *frame   = data;
183
184
21388
    if (avctx->width <= 0) {
185
        av_log(avctx, AV_LOG_ERROR, "width is not set\n");
186
        return AVERROR_INVALIDDATA;
187
    }
188
21388
    if (avctx->height <= 0) {
189
        av_log(avctx, AV_LOG_ERROR, "height is not set\n");
190
        return AVERROR_INVALIDDATA;
191
    }
192
193
21388
    if (context->is_nut_mono)
194
2
        stride = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
195
21386
    else if (context->is_nut_pal8)
196
        stride = avctx->width;
197
    else
198
21386
        stride = avpkt->size / avctx->height;
199
200
21388
    av_log(avctx, AV_LOG_DEBUG, "PACKET SIZE: %d, STRIDE: %d\n", avpkt->size, stride);
201
202

21388
    if (stride == 0 || avpkt->size < stride * avctx->height) {
203
1
        av_log(avctx, AV_LOG_ERROR, "Packet too small (%d)\n", avpkt->size);
204
1
        return AVERROR_INVALIDDATA;
205
    }
206
207
21387
    desc = av_pix_fmt_desc_get(avctx->pix_fmt);
208
209

21387
    if ((avctx->bits_per_coded_sample == 8 || avctx->bits_per_coded_sample == 4 ||
210

21387
         avctx->bits_per_coded_sample == 2 || avctx->bits_per_coded_sample == 1 ||
211

21187
         (avctx->bits_per_coded_sample == 0 && (context->is_nut_pal8 || context->is_mono)) ) &&
212

202
        (context->is_mono || context->is_pal8) &&
213

202
        (!avctx->codec_tag || avctx->codec_tag == MKTAG('r','a','w',' ') ||
214

2
                context->is_nut_mono || context->is_nut_pal8)) {
215
202
        context->is_1_2_4_8_bpp = 1;
216
202
        if (context->is_mono) {
217
2
            int row_bytes = avctx->width / 8 + (avctx->width & 7 ? 1 : 0);
218
2
            context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
219
2
                                                           FFALIGN(row_bytes, 16) * 8,
220
                                                           avctx->height, 1);
221
        } else
222
200
            context->frame_size = av_image_get_buffer_size(avctx->pix_fmt,
223
200
                                                           FFALIGN(avctx->width, 16),
224
                                                           avctx->height, 1);
225
    } else {
226

21185
        context->is_lt_16bpp = av_get_bits_per_pixel(desc) == 16 && avctx->bits_per_coded_sample > 8 && avctx->bits_per_coded_sample < 16;
227
21185
        context->frame_size = av_image_get_buffer_size(avctx->pix_fmt, avctx->width,
228
                                                       avctx->height, 1);
229
    }
230
21387
    if (context->frame_size < 0)
231
        return context->frame_size;
232
233


21387
    need_copy = !avpkt->buf || context->is_1_2_4_8_bpp || context->is_yuv2 || context->is_lt_16bpp;
234
235
21387
    frame->pict_type        = AV_PICTURE_TYPE_I;
236
21387
    frame->key_frame        = 1;
237
238
21387
    res = ff_decode_frame_props(avctx, frame);
239
21387
    if (res < 0)
240
        return res;
241
242
21387
    frame->pkt_pos      = avctx->internal->last_pkt_props->pos;
243
21387
    frame->pkt_duration = avctx->internal->last_pkt_props->duration;
244
245
21387
    if (context->tff >= 0) {
246
        frame->interlaced_frame = 1;
247
        frame->top_field_first  = context->tff;
248
    }
249
250
21387
    if ((res = av_image_check_size(avctx->width, avctx->height, 0, avctx)) < 0)
251
        return res;
252
253
21387
    if (need_copy)
254
202
        frame->buf[0] = av_buffer_alloc(FFMAX(context->frame_size, buf_size));
255
    else
256
21185
        frame->buf[0] = av_buffer_ref(avpkt->buf);
257
21387
    if (!frame->buf[0])
258
        return AVERROR(ENOMEM);
259
260
    // 1, 2, 4 and 8 bpp in avi/mov, 1 and 8 bpp in nut
261
21387
    if (context->is_1_2_4_8_bpp) {
262
202
        int i, j, row_pix = 0;
263
202
        uint8_t *dst = frame->buf[0]->data;
264
202
        buf_size = context->frame_size - (context->is_pal8 ? AVPALETTE_SIZE : 0);
265

204
        if (avctx->bits_per_coded_sample == 8 || context->is_nut_pal8 || context->is_mono) {
266
2
            int pix_per_byte = context->is_mono ? 8 : 1;
267

25346
            for (i = 0, j = 0; j < buf_size && i<avpkt->size; i++, j++) {
268
25344
                dst[j] = buf[i];
269
25344
                row_pix += pix_per_byte;
270
25344
                if (row_pix >= avctx->width) {
271
576
                    i += stride - (i % stride) - 1;
272
576
                    j += 16 - (j % 16) - 1;
273
576
                    row_pix = 0;
274
                }
275
            }
276
200
        } else if (avctx->bits_per_coded_sample == 4) {
277
            for (i = 0, j = 0; 2 * j + 1 < buf_size && i<avpkt->size; i++, j++) {
278
                dst[2 * j + 0] = buf[i] >> 4;
279
                dst[2 * j + 1] = buf[i] & 15;
280
                row_pix += 2;
281
                if (row_pix >= avctx->width) {
282
                    i += stride - (i % stride) - 1;
283
                    j += 8 - (j % 8) - 1;
284
                    row_pix = 0;
285
                }
286
            }
287
200
        } else if (avctx->bits_per_coded_sample == 2) {
288
            for (i = 0, j = 0; 4 * j + 3 < buf_size && i<avpkt->size; i++, j++) {
289
                dst[4 * j + 0] = buf[i] >> 6;
290
                dst[4 * j + 1] = buf[i] >> 4 & 3;
291
                dst[4 * j + 2] = buf[i] >> 2 & 3;
292
                dst[4 * j + 3] = buf[i]      & 3;
293
                row_pix += 4;
294
                if (row_pix >= avctx->width) {
295
                    i += stride - (i % stride) - 1;
296
                    j += 4 - (j % 4) - 1;
297
                    row_pix = 0;
298
                }
299
            }
300
        } else {
301
200
            av_assert0(avctx->bits_per_coded_sample == 1);
302

1909500
            for (i = 0, j = 0; 8 * j + 7 < buf_size && i<avpkt->size; i++, j++) {
303
1909300
                dst[8 * j + 0] = buf[i] >> 7;
304
1909300
                dst[8 * j + 1] = buf[i] >> 6 & 1;
305
1909300
                dst[8 * j + 2] = buf[i] >> 5 & 1;
306
1909300
                dst[8 * j + 3] = buf[i] >> 4 & 1;
307
1909300
                dst[8 * j + 4] = buf[i] >> 3 & 1;
308
1909300
                dst[8 * j + 5] = buf[i] >> 2 & 1;
309
1909300
                dst[8 * j + 6] = buf[i] >> 1 & 1;
310
1909300
                dst[8 * j + 7] = buf[i]      & 1;
311
1909300
                row_pix += 8;
312
1909300
                if (row_pix >= avctx->width) {
313
44900
                    i += stride - (i % stride) - 1;
314
44900
                    j += 2 - (j % 2) - 1;
315
44900
                    row_pix = 0;
316
                }
317
            }
318
        }
319
202
        linesize_align = 16;
320
202
        buf = dst;
321
21185
    } else if (context->is_lt_16bpp) {
322
        uint8_t *dst = frame->buf[0]->data;
323
        int packed = (avctx->codec_tag & 0xFFFFFF) == MKTAG('B','I','T', 0);
324
        int swap   =  avctx->codec_tag >> 24;
325
326
        if (packed && swap) {
327
            av_fast_padded_malloc(&context->bitstream_buf, &context->bitstream_buf_size, buf_size);
328
            if (!context->bitstream_buf)
329
                return AVERROR(ENOMEM);
330
            if (swap == 16)
331
                context->bbdsp.bswap16_buf(context->bitstream_buf, (const uint16_t*)buf, buf_size / 2);
332
            else if (swap == 32)
333
                context->bbdsp.bswap_buf(context->bitstream_buf, (const uint32_t*)buf, buf_size / 4);
334
            else
335
                return AVERROR_INVALIDDATA;
336
            buf = context->bitstream_buf;
337
        }
338
339
        if (desc->flags & AV_PIX_FMT_FLAG_BE)
340
            scale16be(avctx, dst, buf, buf_size, packed);
341
        else
342
            scale16le(avctx, dst, buf, buf_size, packed);
343
344
        buf = dst;
345
21185
    } else if (need_copy) {
346
        memcpy(frame->buf[0]->data, buf, buf_size);
347
        buf = frame->buf[0]->data;
348
    }
349
350
21387
    if (avctx->codec_tag == MKTAG('A', 'V', '1', 'x') ||
351
21387
        avctx->codec_tag == MKTAG('A', 'V', 'u', 'p'))
352
        buf += buf_size - context->frame_size;
353
354
21387
    len = context->frame_size - (avctx->pix_fmt==AV_PIX_FMT_PAL8 ? AVPALETTE_SIZE : 0);
355

21387
    if (buf_size < len && ((avctx->codec_tag & 0xFFFFFF) != MKTAG('B','I','T', 0) || !need_copy)) {
356
        av_log(avctx, AV_LOG_ERROR, "Invalid buffer size, packet size %d < expected frame_size %d\n", buf_size, len);
357
        av_buffer_unref(&frame->buf[0]);
358
        return AVERROR(EINVAL);
359
    }
360
361
21387
    if ((res = av_image_fill_arrays(frame->data, frame->linesize,
362
                                    buf, avctx->pix_fmt,
363
                                    avctx->width, avctx->height, 1)) < 0) {
364
        av_buffer_unref(&frame->buf[0]);
365
        return res;
366
    }
367
368
21387
    if (avctx->pix_fmt == AV_PIX_FMT_PAL8) {
369
        int pal_size;
370
200
        const uint8_t *pal = av_packet_get_side_data(avpkt, AV_PKT_DATA_PALETTE,
371
                                                     &pal_size);
372
        int ret;
373
374

200
        if (pal && pal_size != AVPALETTE_SIZE) {
375
            av_log(avctx, AV_LOG_ERROR, "Palette size %d is wrong\n", pal_size);
376
            pal = NULL;
377
        }
378
379
200
        if (!context->palette)
380
            context->palette = av_buffer_alloc(AVPALETTE_SIZE);
381
200
        if (!context->palette) {
382
            av_buffer_unref(&frame->buf[0]);
383
            return AVERROR(ENOMEM);
384
        }
385
200
        ret = av_buffer_make_writable(&context->palette);
386
200
        if (ret < 0) {
387
            av_buffer_unref(&frame->buf[0]);
388
            return ret;
389
        }
390
391
200
        if (pal) {
392
4
            memcpy(context->palette->data, pal, AVPALETTE_SIZE);
393
4
            frame->palette_has_changed = 1;
394
196
        } else if (context->is_nut_pal8) {
395
            int vid_size = avctx->width * avctx->height;
396
            int pal_size = avpkt->size - vid_size;
397
398
            if (avpkt->size > vid_size && pal_size <= AVPALETTE_SIZE) {
399
                pal = avpkt->data + vid_size;
400
                memcpy(context->palette->data, pal, pal_size);
401
                frame->palette_has_changed = 1;
402
            }
403
        }
404
    }
405
406
21387
    if ((avctx->pix_fmt==AV_PIX_FMT_RGB24    ||
407
21101
        avctx->pix_fmt==AV_PIX_FMT_BGR24     ||
408
20699
        avctx->pix_fmt==AV_PIX_FMT_GRAY8     ||
409
20698
        avctx->pix_fmt==AV_PIX_FMT_RGB555LE  ||
410
20297
        avctx->pix_fmt==AV_PIX_FMT_RGB555BE  ||
411
20297
        avctx->pix_fmt==AV_PIX_FMT_RGB565LE  ||
412
20096
        avctx->pix_fmt==AV_PIX_FMT_MONOWHITE ||
413
20095
        avctx->pix_fmt==AV_PIX_FMT_MONOBLACK ||
414
20094
        avctx->pix_fmt==AV_PIX_FMT_PAL8) &&
415
1493
        FFALIGN(frame->linesize[0], linesize_align) * avctx->height <= buf_size)
416
1443
        frame->linesize[0] = FFALIGN(frame->linesize[0], linesize_align);
417
418

21387
    if (avctx->pix_fmt == AV_PIX_FMT_NV12 && avctx->codec_tag == MKTAG('N', 'V', '1', '2') &&
419
        FFALIGN(frame->linesize[0], linesize_align) * avctx->height +
420
        FFALIGN(frame->linesize[1], linesize_align) * ((avctx->height + 1) / 2) <= buf_size) {
421
        int la0 = FFALIGN(frame->linesize[0], linesize_align);
422
        frame->data[1] += (la0 - frame->linesize[0]) * avctx->height;
423
        frame->linesize[0] = la0;
424
        frame->linesize[1] = FFALIGN(frame->linesize[1], linesize_align);
425
    }
426
427

21387
    if ((avctx->pix_fmt == AV_PIX_FMT_PAL8 && buf_size < context->frame_size) ||
428
21187
        (desc->flags & FF_PSEUDOPAL)) {
429
201
        frame->buf[1]  = av_buffer_ref(context->palette);
430
201
        if (!frame->buf[1]) {
431
            av_buffer_unref(&frame->buf[0]);
432
            return AVERROR(ENOMEM);
433
        }
434
201
        frame->data[1] = frame->buf[1]->data;
435
    }
436
437
21387
    if (avctx->pix_fmt == AV_PIX_FMT_BGR24 &&
438
402
        ((frame->linesize[0] + 3) & ~3) * avctx->height <= buf_size)
439
352
        frame->linesize[0] = (frame->linesize[0] + 3) & ~3;
440
441
21387
    if (context->flip)
442
        flip(avctx, frame);
443
444
21387
    if (avctx->codec_tag == MKTAG('Y', 'V', '1', '2') ||
445
21387
        avctx->codec_tag == MKTAG('Y', 'V', '1', '6') ||
446
21387
        avctx->codec_tag == MKTAG('Y', 'V', '2', '4') ||
447
21387
        avctx->codec_tag == MKTAG('Y', 'V', 'U', '9'))
448
        FFSWAP(uint8_t *, frame->data[1], frame->data[2]);
449
450

21387
    if (avctx->codec_tag == AV_RL32("I420") && (avctx->width+1)*(avctx->height+1) * 3/2 == buf_size) {
451
        frame->data[1] = frame->data[1] +  (avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height;
452
        frame->data[2] = frame->data[2] + ((avctx->width+1)*(avctx->height+1) -avctx->width*avctx->height)*5/4;
453
    }
454
455
21387
    if (avctx->codec_tag == AV_RL32("yuv2") &&
456
        avctx->pix_fmt   == AV_PIX_FMT_YUYV422) {
457
        int x, y;
458
        uint8_t *line = frame->data[0];
459
        for (y = 0; y < avctx->height; y++) {
460
            for (x = 0; x < avctx->width; x++)
461
                line[2 * x + 1] ^= 0x80;
462
            line += frame->linesize[0];
463
        }
464
    }
465
466
21387
    if (avctx->codec_tag == AV_RL32("b64a") &&
467
        avctx->pix_fmt   == AV_PIX_FMT_RGBA64BE) {
468
        uint8_t *dst = frame->data[0];
469
        uint64_t v;
470
        int x, y;
471
        for (y = 0; y < avctx->height; y++) {
472
            for (x = 0; x >> 3 < avctx->width; x += 8) {
473
                v = AV_RB64(&dst[x]);
474
                AV_WB64(&dst[x], v << 16 | v >> 48);
475
            }
476
            dst += frame->linesize[0];
477
        }
478
    }
479
480
21387
    if (avctx->field_order > AV_FIELD_PROGRESSIVE) { /* we have interlaced material flagged in container */
481
        frame->interlaced_frame = 1;
482
        if (avctx->field_order == AV_FIELD_TT || avctx->field_order == AV_FIELD_TB)
483
            frame->top_field_first = 1;
484
    }
485
486
21387
    *got_frame = 1;
487
21387
    return buf_size;
488
}
489
490
1112
static av_cold int raw_close_decoder(AVCodecContext *avctx)
491
{
492
1112
    RawVideoContext *context = avctx->priv_data;
493
494
1112
    av_buffer_unref(&context->palette);
495
1112
    return 0;
496
}
497
498
AVCodec ff_rawvideo_decoder = {
499
    .name           = "rawvideo",
500
    .long_name      = NULL_IF_CONFIG_SMALL("raw video"),
501
    .type           = AVMEDIA_TYPE_VIDEO,
502
    .id             = AV_CODEC_ID_RAWVIDEO,
503
    .priv_data_size = sizeof(RawVideoContext),
504
    .init           = raw_init_decoder,
505
    .close          = raw_close_decoder,
506
    .decode         = raw_decode,
507
    .priv_class     = &rawdec_class,
508
    .capabilities   = AV_CODEC_CAP_PARAM_CHANGE,
509
};