FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/mpegvideo_dec.c
Date: 2025-04-25 22:50:00
Exec Total Coverage
Lines: 440 592 74.3%
Functions: 25 25 100.0%
Branches: 198 332 59.6%
Line Branch Exec Source
1 /*
2 * Common mpeg video decoding code
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23 #include <limits.h>
24
25 #include "config_components.h"
26
27 #include "libavutil/avassert.h"
28 #include "libavutil/emms.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/internal.h"
31 #include "libavutil/video_enc_params.h"
32
33 #include "avcodec.h"
34 #include "decode.h"
35 #include "h263.h"
36 #include "h264chroma.h"
37 #include "internal.h"
38 #include "mpegutils.h"
39 #include "mpegvideo.h"
40 #include "mpegvideodec.h"
41 #include "mpeg4videodec.h"
42 #include "libavutil/refstruct.h"
43 #include "thread.h"
44 #include "threadprogress.h"
45 #include "wmv2dec.h"
46
47 636 av_cold int ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
48 {
49 enum ThreadingStatus thread_status;
50
51 636 ff_mpv_common_defaults(s);
52
53 636 s->avctx = avctx;
54 636 s->width = avctx->coded_width;
55 636 s->height = avctx->coded_height;
56 636 s->codec_id = avctx->codec->id;
57 636 s->workaround_bugs = avctx->workaround_bugs;
58
59 /* convert fourcc to upper case */
60 636 s->codec_tag = ff_toupper4(avctx->codec_tag);
61
62 636 ff_mpv_idct_init(s);
63
64 636 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
65
66
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 636 if (s->picture_pool) // VC-1 can call this multiple times
67 ✗ return 0;
68
69 636 thread_status = ff_thread_sync_ref(avctx, offsetof(MpegEncContext, picture_pool));
70
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 636 if (thread_status != FF_THREAD_IS_COPY) {
71 628 s->picture_pool = ff_mpv_alloc_pic_pool(thread_status != FF_THREAD_NO_FRAME_THREADING);
72
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 628 if (!s->picture_pool)
73 ✗ return AVERROR(ENOMEM);
74 }
75 636 return 0;
76 }
77
78 18 int ff_mpeg_update_thread_context(AVCodecContext *dst,
79 const AVCodecContext *src)
80 {
81 18 MpegEncContext *const s1 = src->priv_data;
82 18 MpegEncContext *const s = dst->priv_data;
83 int ret;
84
85
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 18 if (dst == src)
86 ✗ return 0;
87
88
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 18 av_assert0(s != s1);
89
90 // FIXME can parameters change on I-frames?
91 // in that case dst may need a reinit
92
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 18 if (!s->context_initialized) {
93 8 void *private_ctx = s->private_ctx;
94 int err;
95 8 memcpy(s, s1, sizeof(*s));
96
97 8 s->context_initialized = 0;
98 8 s->context_reinit = 0;
99 8 s->avctx = dst;
100 8 s->private_ctx = private_ctx;
101
102
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 8 if (s1->context_initialized) {
103
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 8 if ((err = ff_mpv_common_init(s)) < 0)
104 ✗ return err;
105 }
106 }
107
108
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 18 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
109 ✗ s->height = s1->height;
110 ✗ s->width = s1->width;
111 ✗ if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
112 ✗ return ret;
113 }
114
115 18 s->quarter_sample = s1->quarter_sample;
116
117 18 s->picture_number = s1->picture_number;
118
119 18 ff_mpv_replace_picture(&s->cur_pic, &s1->cur_pic);
120 18 ff_mpv_replace_picture(&s->last_pic, &s1->last_pic);
121 18 ff_mpv_replace_picture(&s->next_pic, &s1->next_pic);
122
123 18 s->linesize = s1->linesize;
124 18 s->uvlinesize = s1->uvlinesize;
125
126 // Error/bug resilience
127 18 s->workaround_bugs = s1->workaround_bugs;
128 18 s->padding_bug_score = s1->padding_bug_score;
129
130 // MPEG-4 timing info
131 18 memcpy(&s->last_time_base, &s1->last_time_base,
132 18 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
133 18 (char *) &s1->last_time_base);
134
135 // B-frame info
136 18 s->low_delay = s1->low_delay;
137
138 // MPEG-2/interlacing info
139 18 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
140 18 (char *) &s1->first_field + sizeof(s1->first_field) - (char *) &s1->progressive_sequence);
141
142 18 return 0;
143 }
144
145 636 av_cold int ff_mpv_decode_close(AVCodecContext *avctx)
146 {
147 636 MpegEncContext *s = avctx->priv_data;
148
149 636 av_refstruct_pool_uninit(&s->picture_pool);
150 636 ff_mpv_common_end(s);
151 636 return 0;
152 }
153
154 47 av_cold int ff_mpv_common_frame_size_change(MpegEncContext *s)
155 {
156 47 int err = 0;
157
158
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 47 if (!s->context_initialized)
159 ✗ return AVERROR(EINVAL);
160
161 47 ff_mpv_free_context_frame(s);
162
163 47 ff_mpv_unref_picture(&s->last_pic);
164 47 ff_mpv_unref_picture(&s->next_pic);
165 47 ff_mpv_unref_picture(&s->cur_pic);
166
167
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 94 if ((s->width || s->height) &&
168 47 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
169 ✗ goto fail;
170
171 /* set chroma shifts */
172 47 err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
173 &s->chroma_x_shift,
174 &s->chroma_y_shift);
175
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 47 if (err < 0)
176 ✗ goto fail;
177
178
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 47 if ((err = ff_mpv_init_context_frame(s)))
179 ✗ goto fail;
180
181 47 memset(s->thread_context, 0, sizeof(s->thread_context));
182 47 s->thread_context[0] = s;
183
184
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 47 if (s->width && s->height) {
185 47 err = ff_mpv_init_duplicate_contexts(s);
186
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 47 if (err < 0)
187 ✗ goto fail;
188 }
189 47 s->context_reinit = 0;
190
191 47 return 0;
192 ✗ fail:
193 ✗ ff_mpv_free_context_frame(s);
194 ✗ s->context_reinit = 1;
195 ✗ return err;
196 }
197
198 11257 static int alloc_picture(MpegEncContext *s, MPVWorkPicture *dst, int reference)
199 {
200 11257 AVCodecContext *avctx = s->avctx;
201 11257 MPVPicture *pic = av_refstruct_pool_get(s->picture_pool);
202 int ret;
203
204
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 11257 if (!pic)
205 ✗ return AVERROR(ENOMEM);
206
207 11257 dst->ptr = pic;
208
209 11257 pic->reference = reference;
210
211 /* WM Image / Screen codecs allocate internal buffers with different
212 * dimensions / colorspaces; ignore user-defined callbacks for these. */
213
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 11257 if (avctx->codec_id != AV_CODEC_ID_WMV3IMAGE &&
214
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 11257 avctx->codec_id != AV_CODEC_ID_VC1IMAGE &&
215
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 11257 avctx->codec_id != AV_CODEC_ID_MSS2) {
216 11175 ret = ff_thread_get_buffer(avctx, pic->f,
217 reference ? AV_GET_BUFFER_FLAG_REF : 0);
218 } else {
219 82 pic->f->width = avctx->width;
220 82 pic->f->height = avctx->height;
221 82 pic->f->format = avctx->pix_fmt;
222 82 ret = avcodec_default_get_buffer2(avctx, pic->f, 0);
223 }
224
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 11257 if (ret < 0)
225 ✗ goto fail;
226
227 11257 ret = ff_mpv_pic_check_linesize(avctx, pic->f, &s->linesize, &s->uvlinesize);
228
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 11257 if (ret < 0)
229 ✗ goto fail;
230
231 11257 ret = ff_hwaccel_frame_priv_alloc(avctx, &pic->hwaccel_picture_private);
232
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 11257 if (ret < 0)
233 ✗ goto fail;
234
235 av_assert1(s->mb_width == s->buffer_pools.alloc_mb_width);
236 av_assert1(s->mb_height == s->buffer_pools.alloc_mb_height ||
237 FFALIGN(s->mb_height, 2) == s->buffer_pools.alloc_mb_height);
238 av_assert1(s->mb_stride == s->buffer_pools.alloc_mb_stride);
239 11257 ret = ff_mpv_alloc_pic_accessories(s->avctx, dst, &s->sc,
240 &s->buffer_pools, s->mb_height);
241
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 11257 if (ret < 0)
242 ✗ goto fail;
243
244 11257 return 0;
245 ✗ fail:
246 ✗ ff_mpv_unref_picture(dst);
247 ✗ return ret;
248 }
249
250 21 static int av_cold alloc_dummy_frame(MpegEncContext *s, MPVWorkPicture *dst)
251 {
252 MPVPicture *pic;
253 21 int ret = alloc_picture(s, dst, 1);
254
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 21 if (ret < 0)
255 ✗ return ret;
256
257 21 pic = dst->ptr;
258 21 pic->dummy = 1;
259
260 21 ff_thread_progress_report(&pic->progress, INT_MAX);
261
262 21 return 0;
263 }
264
265 21 static void color_frame(AVFrame *frame, int luma)
266 {
267 int h_chroma_shift, v_chroma_shift;
268
269
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 9909 for (int i = 0; i < frame->height; i++)
270 9888 memset(frame->data[0] + frame->linesize[0] * i, luma, frame->width);
271
272
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 21 if (!frame->data[1])
273 ✗ return;
274 21 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
275
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 4965 for (int i = 0; i < AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
276 4944 memset(frame->data[1] + frame->linesize[1] * i,
277 4944 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
278 4944 memset(frame->data[2] + frame->linesize[2] * i,
279 4944 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
280 }
281 }
282
283 11945 int ff_mpv_alloc_dummy_frames(MpegEncContext *s)
284 {
285 11945 AVCodecContext *avctx = s->avctx;
286 int ret;
287
288 av_assert1(!s->last_pic.ptr || s->last_pic.ptr->f->buf[0]);
289 av_assert1(!s->next_pic.ptr || s->next_pic.ptr->f->buf[0]);
290
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 11945 if (!s->last_pic.ptr && s->pict_type != AV_PICTURE_TYPE_I) {
291
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 21 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_pic.ptr)
292 ✗ av_log(avctx, AV_LOG_DEBUG,
293 "allocating dummy last picture for B frame\n");
294
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 21 else if (s->codec_id != AV_CODEC_ID_H261 /* H.261 has no keyframes */ &&
295
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 15 (s->picture_structure == PICT_FRAME || s->first_field))
296 ✗ av_log(avctx, AV_LOG_ERROR,
297 "warning: first frame is no keyframe\n");
298
299 /* Allocate a dummy frame */
300 21 ret = alloc_dummy_frame(s, &s->last_pic);
301
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 21 if (ret < 0)
302 ✗ return ret;
303
304
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 21 if (!avctx->hwaccel) {
305
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 21 int luma_val = s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263 ? 16 : 0x80;
306 21 color_frame(s->last_pic.ptr->f, luma_val);
307 }
308 }
309
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 11945 if (!s->next_pic.ptr && s->pict_type == AV_PICTURE_TYPE_B) {
310 /* Allocate a dummy frame */
311 ✗ ret = alloc_dummy_frame(s, &s->next_pic);
312 ✗ if (ret < 0)
313 ✗ return ret;
314 }
315
316
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 11945 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_pic.ptr &&
317 s->last_pic.ptr->f->buf[0]));
318
319 11945 return 0;
320 }
321
322 /**
323 * generic function called after decoding
324 * the header and before a frame is decoded.
325 */
326 11236 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
327 {
328 int ret;
329
330 11236 s->mb_skipped = 0;
331
332
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 11236 if (!ff_thread_can_start_frame(avctx)) {
333 ✗ av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
334 ✗ return AVERROR_BUG;
335 }
336
337 11236 ff_mpv_unref_picture(&s->cur_pic);
338 11236 ret = alloc_picture(s, &s->cur_pic,
339
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 11236 s->pict_type != AV_PICTURE_TYPE_B && !s->droppable);
340
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 11236 if (ret < 0)
341 ✗ return ret;
342
343
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 11236 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST * !!s->top_field_first;
344 22472 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_INTERLACED *
345
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 11236 (!s->progressive_frame && !s->progressive_sequence);
346 11236 s->cur_pic.ptr->field_picture = s->picture_structure != PICT_FRAME;
347
348 11236 s->cur_pic.ptr->f->pict_type = s->pict_type;
349
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 11236 if (s->pict_type == AV_PICTURE_TYPE_I)
350 1238 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_KEY;
351 else
352 9998 s->cur_pic.ptr->f->flags &= ~AV_FRAME_FLAG_KEY;
353
354
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 11236 if (s->pict_type != AV_PICTURE_TYPE_B) {
355 8619 ff_mpv_workpic_from_pic(&s->last_pic, s->next_pic.ptr);
356
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 8619 if (!s->droppable)
357 8619 ff_mpv_workpic_from_pic(&s->next_pic, s->cur_pic.ptr);
358 }
359 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
360 (void*)s->last_pic.ptr, (void*)s->next_pic.ptr, (void*)s->cur_pic.ptr,
361 s->last_pic.ptr ? s->last_pic.ptr->f->data[0] : NULL,
362 s->next_pic.ptr ? s->next_pic.ptr->f->data[0] : NULL,
363 s->cur_pic.ptr ? s->cur_pic.ptr->f->data[0] : NULL,
364 s->pict_type, s->droppable);
365
366 11236 ret = ff_mpv_alloc_dummy_frames(s);
367
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 11236 if (ret < 0)
368 ✗ return ret;
369
370
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 11236 if (s->avctx->debug & FF_DEBUG_NOMC)
371 ✗ color_frame(s->cur_pic.ptr->f, 0x80);
372
373 11236 return 0;
374 }
375
376 /* called after a frame has been decoded. */
377 11236 void ff_mpv_frame_end(MpegEncContext *s)
378 {
379 11236 emms_c();
380
381
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 11236 if (s->cur_pic.reference)
382 8619 ff_thread_progress_report(&s->cur_pic.ptr->progress, INT_MAX);
383 11236 }
384
385 11038 void ff_print_debug_info(const MpegEncContext *s, const MPVPicture *p, AVFrame *pict)
386 {
387 11038 ff_print_debug_info2(s->avctx, pict, p->mb_type,
388 11038 p->qscale_table, p->motion_val,
389 11038 p->mb_width, p->mb_height, p->mb_stride, s->quarter_sample);
390 11038 }
391
392 10266 int ff_mpv_export_qp_table(const MpegEncContext *s, AVFrame *f,
393 const MPVPicture *p, int qp_type)
394 {
395 AVVideoEncParams *par;
396
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 10266 int mult = (qp_type == FF_MPV_QSCALE_TYPE_MPEG1) ? 2 : 1;
397 10266 unsigned int nb_mb = p->mb_height * p->mb_width;
398
399
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 10266 if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
400 10224 return 0;
401
402 42 par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb);
403
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 42 if (!par)
404 ✗ return AVERROR(ENOMEM);
405
406
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 798 for (unsigned y = 0; y < p->mb_height; y++)
407
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 17388 for (unsigned x = 0; x < p->mb_width; x++) {
408 16632 const unsigned int block_idx = y * p->mb_width + x;
409 16632 const unsigned int mb_xy = y * p->mb_stride + x;
410 16632 AVVideoBlockParams *const b = av_video_enc_params_block(par, block_idx);
411
412 16632 b->src_x = x * 16;
413 16632 b->src_y = y * 16;
414 16632 b->w = 16;
415 16632 b->h = 16;
416
417 16632 b->delta_qp = p->qscale_table[mb_xy] * mult;
418 }
419
420 42 return 0;
421 }
422
423 170410 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
424 {
425 170410 ff_draw_horiz_band(s->avctx, s->cur_pic.ptr->f,
426
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 170410 s->last_pic.ptr ? s->last_pic.ptr->f : NULL,
427 y, h, s->picture_structure,
428 s->first_field, s->low_delay);
429 170410 }
430
431 82 av_cold void ff_mpeg_flush(AVCodecContext *avctx)
432 {
433 82 MpegEncContext *const s = avctx->priv_data;
434
435 82 ff_mpv_unref_picture(&s->cur_pic);
436 82 ff_mpv_unref_picture(&s->last_pic);
437 82 ff_mpv_unref_picture(&s->next_pic);
438
439 82 s->mb_x = s->mb_y = 0;
440
441 82 s->pp_time = 0;
442 82 }
443
444 170410 void ff_mpv_report_decode_progress(MpegEncContext *s)
445 {
446
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 170410 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
447 124688 ff_thread_progress_report(&s->cur_pic.ptr->progress, s->mb_y);
448 170410 }
449
450
451 126300 static inline int hpel_motion_lowres(MpegEncContext *s,
452 uint8_t *dest, const uint8_t *src,
453 int field_based, int field_select,
454 int src_x, int src_y,
455 int width, int height, ptrdiff_t stride,
456 int h_edge_pos, int v_edge_pos,
457 int w, int h, const h264_chroma_mc_func *pix_op,
458 int motion_x, int motion_y)
459 {
460 126300 const int lowres = s->avctx->lowres;
461 126300 const int op_index = lowres;
462 126300 const int s_mask = (2 << lowres) - 1;
463 126300 int emu = 0;
464 int sx, sy;
465
466 av_assert2(op_index <= 3);
467
468
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 126300 if (s->quarter_sample) {
469 ✗ motion_x /= 2;
470 ✗ motion_y /= 2;
471 }
472
473 126300 sx = motion_x & s_mask;
474 126300 sy = motion_y & s_mask;
475 126300 src_x += motion_x >> lowres + 1;
476 126300 src_y += motion_y >> lowres + 1;
477
478 126300 src += src_y * stride + src_x;
479
480
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 126300 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
481
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 126300 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
482 298 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
483 s->linesize, s->linesize,
484 298 w + 1, (h + 1) << field_based,
485 src_x, src_y * (1 << field_based),
486 h_edge_pos, v_edge_pos);
487 298 src = s->sc.edge_emu_buffer;
488 298 emu = 1;
489 }
490
491 126300 sx = (sx << 2) >> lowres;
492 126300 sy = (sy << 2) >> lowres;
493
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 126300 if (field_select)
494 ✗ src += s->linesize;
495 126300 pix_op[op_index](dest, src, stride, h, sx, sy);
496 126300 return emu;
497 }
498
499 /* apply one mpeg motion vector to the three components */
500 24814 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
501 uint8_t *dest_y,
502 uint8_t *dest_cb,
503 uint8_t *dest_cr,
504 int field_based,
505 int bottom_field,
506 int field_select,
507 uint8_t *const *ref_picture,
508 const h264_chroma_mc_func *pix_op,
509 int motion_x, int motion_y,
510 int h, int mb_y)
511 {
512 const uint8_t *ptr_y, *ptr_cb, *ptr_cr;
513 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
514 ptrdiff_t uvlinesize, linesize;
515 24814 const int lowres = s->avctx->lowres;
516 24814 const int op_index = lowres - 1 + s->chroma_x_shift;
517 24814 const int block_s = 8 >> lowres;
518 24814 const int s_mask = (2 << lowres) - 1;
519 24814 const int h_edge_pos = s->h_edge_pos >> lowres;
520 24814 const int v_edge_pos = s->v_edge_pos >> lowres;
521
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 24814 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
522
523 av_assert2(op_index <= 3);
524
525 24814 linesize = s->cur_pic.linesize[0] << field_based;
526 24814 uvlinesize = s->cur_pic.linesize[1] << field_based;
527
528 // FIXME obviously not perfect but qpel will not work in lowres anyway
529
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 24814 if (s->quarter_sample) {
530 ✗ motion_x /= 2;
531 ✗ motion_y /= 2;
532 }
533
534
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 24814 if (field_based) {
535 ✗ motion_y += (bottom_field - field_select)*((1 << lowres)-1);
536 }
537
538 24814 sx = motion_x & s_mask;
539 24814 sy = motion_y & s_mask;
540 24814 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
541 24814 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
542
543
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 24814 if (s->out_format == FMT_H263) {
544 24814 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
545 24814 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
546 24814 uvsrc_x = src_x >> 1;
547 24814 uvsrc_y = src_y >> 1;
548 ✗ } else if (s->out_format == FMT_H261) {
549 // even chroma mv's are full pel in H261
550 ✗ mx = motion_x / 4;
551 ✗ my = motion_y / 4;
552 ✗ uvsx = (2 * mx) & s_mask;
553 ✗ uvsy = (2 * my) & s_mask;
554 ✗ uvsrc_x = s->mb_x * block_s + (mx >> lowres);
555 ✗ uvsrc_y = mb_y * block_s + (my >> lowres);
556 } else {
557 ✗ if (s->chroma_y_shift) {
558 ✗ mx = motion_x / 2;
559 ✗ my = motion_y / 2;
560 ✗ uvsx = mx & s_mask;
561 ✗ uvsy = my & s_mask;
562 ✗ uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
563 ✗ uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
564 } else {
565 ✗ if (s->chroma_x_shift) {
566 //Chroma422
567 ✗ mx = motion_x / 2;
568 ✗ uvsx = mx & s_mask;
569 ✗ uvsy = motion_y & s_mask;
570 ✗ uvsrc_y = src_y;
571 ✗ uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
572 } else {
573 //Chroma444
574 ✗ uvsx = motion_x & s_mask;
575 ✗ uvsy = motion_y & s_mask;
576 ✗ uvsrc_x = src_x;
577 ✗ uvsrc_y = src_y;
578 }
579 }
580 }
581
582 24814 ptr_y = ref_picture[0] + src_y * linesize + src_x;
583 24814 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
584 24814 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
585
586
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 24814 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
587
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 24712 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - FFMAX(h, hc<<s->chroma_y_shift), 0)) {
588 197 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
589 linesize >> field_based, linesize >> field_based,
590 17, 17 + field_based,
591 src_x, src_y * (1 << field_based), h_edge_pos,
592 v_edge_pos);
593 197 ptr_y = s->sc.edge_emu_buffer;
594 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
595 197 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
596 197 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
597
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 197 if (s->workaround_bugs & FF_BUG_IEDGE)
598 ✗ vbuf -= s->uvlinesize;
599 197 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
600 uvlinesize >> field_based, uvlinesize >> field_based,
601 9, 9 + field_based,
602 uvsrc_x, uvsrc_y * (1 << field_based),
603 h_edge_pos >> 1, v_edge_pos >> 1);
604 197 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
605 uvlinesize >> field_based,uvlinesize >> field_based,
606 9, 9 + field_based,
607 uvsrc_x, uvsrc_y * (1 << field_based),
608 h_edge_pos >> 1, v_edge_pos >> 1);
609 197 ptr_cb = ubuf;
610 197 ptr_cr = vbuf;
611 }
612 }
613
614 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
615
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 24814 if (bottom_field) {
616 ✗ dest_y += s->linesize;
617 ✗ dest_cb += s->uvlinesize;
618 ✗ dest_cr += s->uvlinesize;
619 }
620
621
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 24814 if (field_select) {
622 ✗ ptr_y += s->linesize;
623 ✗ ptr_cb += s->uvlinesize;
624 ✗ ptr_cr += s->uvlinesize;
625 }
626
627 24814 sx = (sx << 2) >> lowres;
628 24814 sy = (sy << 2) >> lowres;
629 24814 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
630
631 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
632 24814 uvsx = (uvsx << 2) >> lowres;
633 24814 uvsy = (uvsy << 2) >> lowres;
634
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 24814 if (hc) {
635 24814 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
636 24814 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
637 }
638 }
639 // FIXME h261 lowres loop filter
640 24814 }
641
642 31575 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
643 uint8_t *dest_cb, uint8_t *dest_cr,
644 uint8_t *const *ref_picture,
645 const h264_chroma_mc_func * pix_op,
646 int mx, int my)
647 {
648 31575 const int lowres = s->avctx->lowres;
649 31575 const int op_index = lowres;
650 31575 const int block_s = 8 >> lowres;
651 31575 const int s_mask = (2 << lowres) - 1;
652 31575 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
653 31575 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
654 31575 int emu = 0, src_x, src_y, sx, sy;
655 ptrdiff_t offset;
656 const uint8_t *ptr;
657
658 av_assert2(op_index <= 3);
659
660
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 31575 if (s->quarter_sample) {
661 ✗ mx /= 2;
662 ✗ my /= 2;
663 }
664
665 /* In case of 8X8, we construct a single chroma motion vector
666 with a special rounding */
667 31575 mx = ff_h263_round_chroma(mx);
668 31575 my = ff_h263_round_chroma(my);
669
670 31575 sx = mx & s_mask;
671 31575 sy = my & s_mask;
672 31575 src_x = s->mb_x * block_s + (mx >> lowres + 1);
673 31575 src_y = s->mb_y * block_s + (my >> lowres + 1);
674
675 31575 offset = src_y * s->uvlinesize + src_x;
676 31575 ptr = ref_picture[1] + offset;
677
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 31575 if ((unsigned) src_x > FFMAX(h_edge_pos - (!!sx) - block_s, 0) ||
678
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 31575 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
679 144 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
680 s->uvlinesize, s->uvlinesize,
681 9, 9,
682 src_x, src_y, h_edge_pos, v_edge_pos);
683 144 ptr = s->sc.edge_emu_buffer;
684 144 emu = 1;
685 }
686 31575 sx = (sx << 2) >> lowres;
687 31575 sy = (sy << 2) >> lowres;
688 31575 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
689
690 31575 ptr = ref_picture[2] + offset;
691
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 31575 if (emu) {
692 144 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
693 s->uvlinesize, s->uvlinesize,
694 9, 9,
695 src_x, src_y, h_edge_pos, v_edge_pos);
696 144 ptr = s->sc.edge_emu_buffer;
697 }
698 31575 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
699 31575 }
700
701 /**
702 * motion compensation of a single macroblock
703 * @param s context
704 * @param dest_y luma destination pointer
705 * @param dest_cb chroma cb/u destination pointer
706 * @param dest_cr chroma cr/v destination pointer
707 * @param dir direction (0->forward, 1->backward)
708 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
709 * @param pix_op halfpel motion compensation function (average or put normally)
710 * the motion vectors are taken from s->mv and the MV type from s->mv_type
711 */
712 56389 static inline void MPV_motion_lowres(MpegEncContext *s,
713 uint8_t *dest_y, uint8_t *dest_cb,
714 uint8_t *dest_cr,
715 int dir, uint8_t *const *ref_picture,
716 const h264_chroma_mc_func *pix_op)
717 {
718 int mx, my;
719 int mb_x, mb_y;
720 56389 const int lowres = s->avctx->lowres;
721 56389 const int block_s = 8 >>lowres;
722
723 56389 mb_x = s->mb_x;
724 56389 mb_y = s->mb_y;
725
726
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 56389 switch (s->mv_type) {
727 24814 case MV_TYPE_16X16:
728 24814 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
729 0, 0, 0,
730 ref_picture, pix_op,
731 s->mv[dir][0][0], s->mv[dir][0][1],
732 2 * block_s, mb_y);
733 24814 break;
734 31575 case MV_TYPE_8X8:
735 31575 mx = 0;
736 31575 my = 0;
737
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 157875 for (int i = 0; i < 4; i++) {
738 126300 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
739 126300 s->linesize) * block_s,
740 ref_picture[0], 0, 0,
741 126300 (2 * mb_x + (i & 1)) * block_s,
742 126300 (2 * mb_y + (i >> 1)) * block_s,
743 s->width, s->height, s->linesize,
744 126300 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
745 block_s, block_s, pix_op,
746 s->mv[dir][i][0], s->mv[dir][i][1]);
747
748 126300 mx += s->mv[dir][i][0];
749 126300 my += s->mv[dir][i][1];
750 }
751
752 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
753 31575 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
754 pix_op, mx, my);
755 31575 break;
756 ✗ case MV_TYPE_FIELD:
757 ✗ if (s->picture_structure == PICT_FRAME) {
758 /* top field */
759 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
760 1, 0, s->field_select[dir][0],
761 ref_picture, pix_op,
762 s->mv[dir][0][0], s->mv[dir][0][1],
763 block_s, mb_y);
764 /* bottom field */
765 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
766 1, 1, s->field_select[dir][1],
767 ref_picture, pix_op,
768 s->mv[dir][1][0], s->mv[dir][1][1],
769 block_s, mb_y);
770 } else {
771 ✗ if (s->picture_structure != s->field_select[dir][0] + 1 &&
772 ✗ s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
773 ✗ ref_picture = s->cur_pic.ptr->f->data;
774 }
775 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
776 0, 0, s->field_select[dir][0],
777 ref_picture, pix_op,
778 s->mv[dir][0][0],
779 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
780 }
781 ✗ break;
782 ✗ case MV_TYPE_16X8:
783 ✗ for (int i = 0; i < 2; i++) {
784 uint8_t *const *ref2picture;
785
786 ✗ if (s->picture_structure == s->field_select[dir][i] + 1 ||
787 ✗ s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
788 ✗ ref2picture = ref_picture;
789 } else {
790 ✗ ref2picture = s->cur_pic.ptr->f->data;
791 }
792
793 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
794 0, 0, s->field_select[dir][i],
795 ref2picture, pix_op,
796 ✗ s->mv[dir][i][0], s->mv[dir][i][1] +
797 ✗ 2 * block_s * i, block_s, mb_y >> 1);
798
799 ✗ dest_y += 2 * block_s * s->linesize;
800 ✗ dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
801 ✗ dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
802 }
803 ✗ break;
804 ✗ case MV_TYPE_DMV:
805 ✗ if (s->picture_structure == PICT_FRAME) {
806 ✗ for (int i = 0; i < 2; i++) {
807 ✗ for (int j = 0; j < 2; j++) {
808 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
809 1, j, j ^ i,
810 ref_picture, pix_op,
811 ✗ s->mv[dir][2 * i + j][0],
812 ✗ s->mv[dir][2 * i + j][1],
813 block_s, mb_y);
814 }
815 ✗ pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
816 }
817 } else {
818 ✗ for (int i = 0; i < 2; i++) {
819 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
820 ✗ 0, 0, s->picture_structure != i + 1,
821 ref_picture, pix_op,
822 ✗ s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
823 2 * block_s, mb_y >> 1);
824
825 // after put we make avg of the same block
826 ✗ pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
827
828 // opposite parity is always in the same
829 // frame if this is second field
830 ✗ if (!s->first_field) {
831 ✗ ref_picture = s->cur_pic.ptr->f->data;
832 }
833 }
834 }
835 ✗ break;
836 56389 default:
837 av_assert2(0);
838 }
839 56389 }
840
841 /**
842 * find the lowest MB row referenced in the MVs
843 */
844 60133 static int lowest_referenced_row(MpegEncContext *s, int dir)
845 {
846 60133 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
847 int off, mvs;
848
849
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 60133 if (s->picture_structure != PICT_FRAME || s->mcsel)
850 ✗ goto unhandled;
851
852
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 60133 switch (s->mv_type) {
853 60133 case MV_TYPE_16X16:
854 60133 mvs = 1;
855 60133 break;
856 ✗ case MV_TYPE_16X8:
857 ✗ mvs = 2;
858 ✗ break;
859 ✗ case MV_TYPE_8X8:
860 ✗ mvs = 4;
861 ✗ break;
862 ✗ default:
863 ✗ goto unhandled;
864 }
865
866
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 120266 for (int i = 0; i < mvs; i++) {
867 60133 int my = s->mv[dir][i][1];
868 60133 my_max = FFMAX(my_max, my);
869 60133 my_min = FFMIN(my_min, my);
870 }
871
872 60133 off = ((FFMAX(-my_min, my_max) << qpel_shift) + 63) >> 6;
873
874 60133 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
875 ✗ unhandled:
876 ✗ return s->mb_height - 1;
877 }
878
879 /* add block[] to dest[] */
880 23105814 static inline void add_dct(MpegEncContext *s,
881 int16_t *block, int i, uint8_t *dest, int line_size)
882 {
883
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 23105814 if (s->block_last_index[i] >= 0) {
884 8317938 s->idsp.idct_add(dest, line_size, block);
885 }
886 23105814 }
887
888 /* put block[] to dest[] */
889 1758666 static inline void put_dct(MpegEncContext *s,
890 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
891 {
892 1758666 s->dct_unquantize_intra(s, block, i, qscale);
893 1758666 s->idsp.idct_put(dest, line_size, block);
894 1758666 }
895
896 2942796 static inline void add_dequant_dct(MpegEncContext *s,
897 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
898 {
899
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 2942796 if (s->block_last_index[i] >= 0) {
900 1108259 s->dct_unquantize_inter(s, block, i, qscale);
901
902 1108259 s->idsp.idct_add(dest, line_size, block);
903 }
904 2942796 }
905
906 #define NOT_MPEG12_H261 0
907 #define MAY_BE_MPEG12_H261 1
908 #define DEFINITELY_MPEG12_H261 2
909
910 /* generic function called after a macroblock has been parsed by the decoder.
911
912 Important variables used:
913 s->mb_intra : true if intra macroblock
914 s->mv_dir : motion vector direction
915 s->mv_type : motion vector type
916 s->mv : motion vector
917 s->interlaced_dct : true if interlaced dct used (mpeg2)
918 */
919 static av_always_inline
920 5142214 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
921 int lowres_flag, int is_mpeg12)
922 {
923 #define IS_MPEG12_H261(s) (is_mpeg12 == MAY_BE_MPEG12_H261 ? ((s)->out_format <= FMT_H261) : is_mpeg12)
924 5142214 uint8_t *dest_y = s->dest[0], *dest_cb = s->dest[1], *dest_cr = s->dest[2];
925 int dct_linesize, dct_offset;
926 5142214 const int linesize = s->cur_pic.linesize[0]; //not s->linesize as this would be wrong for field pics
927 5142214 const int uvlinesize = s->cur_pic.linesize[1];
928
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 5142214 const int block_size = lowres_flag ? 8 >> s->avctx->lowres : 8;
929
930 5142214 dct_linesize = linesize << s->interlaced_dct;
931
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 5142214 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
932
933
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 5142214 if (!s->mb_intra) {
934 /* motion handling */
935
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 4509267 if (HAVE_THREADS && is_mpeg12 != DEFINITELY_MPEG12_H261 &&
936
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 2129717 s->avctx->active_thread_type & FF_THREAD_FRAME) {
937
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 60133 if (s->mv_dir & MV_DIR_FORWARD) {
938 60133 ff_thread_progress_await(&s->last_pic.ptr->progress,
939 lowest_referenced_row(s, 0));
940 }
941
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 60133 if (s->mv_dir & MV_DIR_BACKWARD) {
942 ✗ ff_thread_progress_await(&s->next_pic.ptr->progress,
943 lowest_referenced_row(s, 1));
944 }
945 }
946
947
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 4509267 if (lowres_flag) {
948 41123 const h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
949
950
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 41123 if (s->mv_dir & MV_DIR_FORWARD) {
951 37429 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix);
952 37429 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
953 }
954
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 41123 if (s->mv_dir & MV_DIR_BACKWARD) {
955 18960 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix);
956 }
957 } else {
958 const op_pixels_func (*op_pix)[4];
959 const qpel_mc_func (*op_qpix)[16];
960
961
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 4468144 if ((is_mpeg12 == DEFINITELY_MPEG12_H261 || !s->no_rounding) || s->pict_type == AV_PICTURE_TYPE_B) {
962 3663310 op_pix = s->hdsp.put_pixels_tab;
963 3663310 op_qpix = s->qdsp.put_qpel_pixels_tab;
964 } else {
965 804834 op_pix = s->hdsp.put_no_rnd_pixels_tab;
966 804834 op_qpix = s->qdsp.put_no_rnd_qpel_pixels_tab;
967 }
968
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 4468144 if (s->mv_dir & MV_DIR_FORWARD) {
969 4164500 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix, op_qpix);
970 4164500 op_pix = s->hdsp.avg_pixels_tab;
971 4164500 op_qpix = s->qdsp.avg_qpel_pixels_tab;
972 }
973
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 4468144 if (s->mv_dir & MV_DIR_BACKWARD) {
974 928015 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix, op_qpix);
975 }
976 }
977
978 /* skip dequant / idct if we are really late ;) */
979
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 4509267 if (s->avctx->skip_idct) {
980 ✗ if ( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
981 ✗ ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
982 ✗ || s->avctx->skip_idct >= AVDISCARD_ALL)
983 ✗ return;
984 }
985
986 /* add dct residue */
987
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 4509267 if (!(IS_MPEG12_H261(s) || s->msmpeg4_version != MSMP4_UNUSED ||
988
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 1760849 (s->codec_id == AV_CODEC_ID_MPEG4 && !s->mpeg_quant))) {
989 490466 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
990 490466 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
991 490466 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
992 490466 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
993
994 490466 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
995 av_assert2(s->chroma_y_shift);
996 490466 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
997 490466 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
998 }
999
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 4018801 } else if (is_mpeg12 == DEFINITELY_MPEG12_H261 || lowres_flag || (s->codec_id != AV_CODEC_ID_WMV2)) {
1000 3828652 add_dct(s, block[0], 0, dest_y , dct_linesize);
1001 3828652 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
1002 3828652 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
1003 3828652 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
1004
1005 3828652 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1006
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 3828652 if (s->chroma_y_shift) {//Chroma420
1007 3761701 add_dct(s, block[4], 4, dest_cb, uvlinesize);
1008 3761701 add_dct(s, block[5], 5, dest_cr, uvlinesize);
1009 } else {
1010 //chroma422
1011 66951 dct_linesize = uvlinesize << s->interlaced_dct;
1012
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 66951 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
1013
1014 66951 add_dct(s, block[4], 4, dest_cb, dct_linesize);
1015 66951 add_dct(s, block[5], 5, dest_cr, dct_linesize);
1016 66951 add_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize);
1017 66951 add_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize);
1018
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 66951 if (!s->chroma_x_shift) {//Chroma444
1019 ✗ add_dct(s, block[8], 8, dest_cb + block_size, dct_linesize);
1020 ✗ add_dct(s, block[9], 9, dest_cr + block_size, dct_linesize);
1021 ✗ add_dct(s, block[10], 10, dest_cb + block_size + dct_offset, dct_linesize);
1022 ✗ add_dct(s, block[11], 11, dest_cr + block_size + dct_offset, dct_linesize);
1023 }
1024 }
1025 } //fi gray
1026 } else if (CONFIG_WMV2_DECODER) {
1027 190149 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
1028 }
1029 } else {
1030 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
1031 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
1032
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 632947 if (is_mpeg12 != DEFINITELY_MPEG12_H261 && CONFIG_MPEG4_DECODER &&
1033 /* s->codec_id == AV_CODEC_ID_MPEG4 && */
1034
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 294461 s->avctx->bits_per_raw_sample > 8) {
1035 1350 ff_mpeg4_decode_studio(s, dest_y, dest_cb, dest_cr, block_size,
1036 uvlinesize, dct_linesize, dct_offset);
1037
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 631597 } else if (!IS_MPEG12_H261(s)) {
1038 /* dct only in intra block */
1039 293111 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
1040 293111 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
1041 293111 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
1042 293111 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
1043
1044 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1045
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 293111 if (s->chroma_y_shift) {
1046 293111 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
1047 293111 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
1048 } else {
1049 ✗ dct_offset >>= 1;
1050 ✗ dct_linesize >>= 1;
1051 ✗ put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
1052 ✗ put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
1053 ✗ put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
1054 ✗ put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
1055 }
1056 }
1057 } else {
1058 338486 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
1059 338486 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
1060 338486 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
1061 338486 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
1062
1063 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1064
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 338486 if (s->chroma_y_shift) {
1065 284327 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
1066 284327 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
1067 } else {
1068 54159 dct_linesize = uvlinesize << s->interlaced_dct;
1069
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 54159 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
1070
1071 54159 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
1072 54159 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
1073 54159 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
1074 54159 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
1075
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 54159 if (!s->chroma_x_shift) { //Chroma444
1076 ✗ s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
1077 ✗ s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
1078 ✗ s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
1079 ✗ s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
1080 }
1081 }
1082 } //gray
1083 }
1084 }
1085 }
1086
1087 5142214 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
1088 {
1089 5142214 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1090 5142214 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1091
1092 5142214 s->cur_pic.qscale_table[mb_xy] = s->qscale;
1093
1094 /* avoid copy if macroblock skipped in last frame too */
1095
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 5142214 if (s->mb_skipped) {
1096 387911 s->mb_skipped = 0;
1097 av_assert2(s->pict_type != AV_PICTURE_TYPE_I);
1098 387911 *mbskip_ptr = 1;
1099
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 4754303 } else if (!s->cur_pic.reference) {
1100 1117924 *mbskip_ptr = 1;
1101 } else{
1102 3636379 *mbskip_ptr = 0; /* not skipped */
1103 }
1104
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 5142214 if (s->avctx->debug & FF_DEBUG_DCT_COEFF) {
1106 /* print DCT coefficients */
1107 ✗ av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1108 ✗ for (int i = 0; i < 6; i++) {
1109 ✗ for (int j = 0; j < 64; j++) {
1110 ✗ av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1111 ✗ block[i][s->idsp.idct_permutation[j]]);
1112 }
1113 ✗ av_log(s->avctx, AV_LOG_DEBUG, "\n");
1114 }
1115 }
1116
1117 av_assert2((s->out_format <= FMT_H261) == (s->out_format == FMT_H261 || s->out_format == FMT_MPEG1));
1118
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 5142214 if (!s->avctx->lowres) {
1119 #if !CONFIG_SMALL
1120
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 5098714 if (s->out_format <= FMT_H261)
1121 2718036 mpv_reconstruct_mb_internal(s, block, 0, DEFINITELY_MPEG12_H261);
1122 else
1123 2380678 mpv_reconstruct_mb_internal(s, block, 0, NOT_MPEG12_H261);
1124 #else
1125 mpv_reconstruct_mb_internal(s, block, 0, MAY_BE_MPEG12_H261);
1126 #endif
1127 } else
1128 43500 mpv_reconstruct_mb_internal(s, block, 1, MAY_BE_MPEG12_H261);
1129 5142214 }
1130