FFmpeg coverage

Directory: ../../../ffmpeg/
File: src/libavcodec/mpegvideo_dec.c
Date: 2025-03-08 20:38:41
Exec Total Coverage
Lines: 439 591 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 "h264chroma.h"
36 #include "internal.h"
37 #include "mpegutils.h"
38 #include "mpegvideo.h"
39 #include "mpegvideodec.h"
40 #include "mpeg4videodec.h"
41 #include "libavutil/refstruct.h"
42 #include "thread.h"
43 #include "threadprogress.h"
44 #include "wmv2dec.h"
45
46 636 int ff_mpv_decode_init(MpegEncContext *s, AVCodecContext *avctx)
47 {
48 enum ThreadingStatus thread_status;
49
50 636 ff_mpv_common_defaults(s);
51
52 636 s->avctx = avctx;
53 636 s->width = avctx->coded_width;
54 636 s->height = avctx->coded_height;
55 636 s->codec_id = avctx->codec->id;
56 636 s->workaround_bugs = avctx->workaround_bugs;
57
58 /* convert fourcc to upper case */
59 636 s->codec_tag = ff_toupper4(avctx->codec_tag);
60
61 636 ff_mpv_idct_init(s);
62
63 636 ff_h264chroma_init(&s->h264chroma, 8); //for lowres
64
65
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 636 if (s->picture_pool) // VC-1 can call this multiple times
66 ✗ return 0;
67
68 636 thread_status = ff_thread_sync_ref(avctx, offsetof(MpegEncContext, picture_pool));
69
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 636 if (thread_status != FF_THREAD_IS_COPY) {
70 628 s->picture_pool = ff_mpv_alloc_pic_pool(thread_status != FF_THREAD_NO_FRAME_THREADING);
71
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 628 if (!s->picture_pool)
72 ✗ return AVERROR(ENOMEM);
73 }
74 636 return 0;
75 }
76
77 18 int ff_mpeg_update_thread_context(AVCodecContext *dst,
78 const AVCodecContext *src)
79 {
80 18 MpegEncContext *const s1 = src->priv_data;
81 18 MpegEncContext *const s = dst->priv_data;
82 int ret;
83
84
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 18 if (dst == src)
85 ✗ return 0;
86
87
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 18 av_assert0(s != s1);
88
89 // FIXME can parameters change on I-frames?
90 // in that case dst may need a reinit
91
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 18 if (!s->context_initialized) {
92 8 void *private_ctx = s->private_ctx;
93 int err;
94 8 memcpy(s, s1, sizeof(*s));
95
96 8 s->context_initialized = 0;
97 8 s->context_reinit = 0;
98 8 s->avctx = dst;
99 8 s->private_ctx = private_ctx;
100
101
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 8 if (s1->context_initialized) {
102
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 8 if ((err = ff_mpv_common_init(s)) < 0)
103 ✗ return err;
104 }
105 }
106
107
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 18 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
108 ✗ s->height = s1->height;
109 ✗ s->width = s1->width;
110 ✗ if ((ret = ff_mpv_common_frame_size_change(s)) < 0)
111 ✗ return ret;
112 }
113
114 18 s->quarter_sample = s1->quarter_sample;
115
116 18 s->picture_number = s1->picture_number;
117
118 18 ff_mpv_replace_picture(&s->cur_pic, &s1->cur_pic);
119 18 ff_mpv_replace_picture(&s->last_pic, &s1->last_pic);
120 18 ff_mpv_replace_picture(&s->next_pic, &s1->next_pic);
121
122 18 s->linesize = s1->linesize;
123 18 s->uvlinesize = s1->uvlinesize;
124
125 // Error/bug resilience
126 18 s->workaround_bugs = s1->workaround_bugs;
127 18 s->padding_bug_score = s1->padding_bug_score;
128
129 // MPEG-4 timing info
130 18 memcpy(&s->last_time_base, &s1->last_time_base,
131 18 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
132 18 (char *) &s1->last_time_base);
133
134 // B-frame info
135 18 s->low_delay = s1->low_delay;
136
137 // MPEG-2/interlacing info
138 18 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
139 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
140
141 18 return 0;
142 }
143
144 636 int ff_mpv_decode_close(AVCodecContext *avctx)
145 {
146 636 MpegEncContext *s = avctx->priv_data;
147
148 636 av_refstruct_pool_uninit(&s->picture_pool);
149 636 ff_mpv_common_end(s);
150 636 return 0;
151 }
152
153 47 int ff_mpv_common_frame_size_change(MpegEncContext *s)
154 {
155 47 int err = 0;
156
157
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 47 if (!s->context_initialized)
158 ✗ return AVERROR(EINVAL);
159
160 47 ff_mpv_free_context_frame(s);
161
162 47 ff_mpv_unref_picture(&s->last_pic);
163 47 ff_mpv_unref_picture(&s->next_pic);
164 47 ff_mpv_unref_picture(&s->cur_pic);
165
166
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 94 if ((s->width || s->height) &&
167 47 (err = av_image_check_size(s->width, s->height, 0, s->avctx)) < 0)
168 ✗ goto fail;
169
170 /* set chroma shifts */
171 47 err = av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
172 &s->chroma_x_shift,
173 &s->chroma_y_shift);
174
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 47 if (err < 0)
175 ✗ goto fail;
176
177
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 47 if ((err = ff_mpv_init_context_frame(s)))
178 ✗ goto fail;
179
180 47 memset(s->thread_context, 0, sizeof(s->thread_context));
181 47 s->thread_context[0] = s;
182
183
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 47 if (s->width && s->height) {
184 47 err = ff_mpv_init_duplicate_contexts(s);
185
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 47 if (err < 0)
186 ✗ goto fail;
187 }
188 47 s->context_reinit = 0;
189
190 47 return 0;
191 ✗ fail:
192 ✗ ff_mpv_free_context_frame(s);
193 ✗ s->context_reinit = 1;
194 ✗ return err;
195 }
196
197 11259 static int alloc_picture(MpegEncContext *s, MPVWorkPicture *dst, int reference)
198 {
199 11259 AVCodecContext *avctx = s->avctx;
200 11259 MPVPicture *pic = av_refstruct_pool_get(s->picture_pool);
201 int ret;
202
203
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 11259 if (!pic)
204 ✗ return AVERROR(ENOMEM);
205
206 11259 dst->ptr = pic;
207
208 11259 pic->reference = reference;
209
210 /* WM Image / Screen codecs allocate internal buffers with different
211 * dimensions / colorspaces; ignore user-defined callbacks for these. */
212
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 11259 if (avctx->codec_id != AV_CODEC_ID_WMV3IMAGE &&
213
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 11259 avctx->codec_id != AV_CODEC_ID_VC1IMAGE &&
214
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 11259 avctx->codec_id != AV_CODEC_ID_MSS2) {
215 11177 ret = ff_thread_get_buffer(avctx, pic->f,
216 reference ? AV_GET_BUFFER_FLAG_REF : 0);
217 } else {
218 82 pic->f->width = avctx->width;
219 82 pic->f->height = avctx->height;
220 82 pic->f->format = avctx->pix_fmt;
221 82 ret = avcodec_default_get_buffer2(avctx, pic->f, 0);
222 }
223
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 11259 if (ret < 0)
224 ✗ goto fail;
225
226 11259 ret = ff_mpv_pic_check_linesize(avctx, pic->f, &s->linesize, &s->uvlinesize);
227
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 11259 if (ret < 0)
228 ✗ goto fail;
229
230 11259 ret = ff_hwaccel_frame_priv_alloc(avctx, &pic->hwaccel_picture_private);
231
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 11259 if (ret < 0)
232 ✗ goto fail;
233
234 av_assert1(s->mb_width == s->buffer_pools.alloc_mb_width);
235 av_assert1(s->mb_height == s->buffer_pools.alloc_mb_height ||
236 FFALIGN(s->mb_height, 2) == s->buffer_pools.alloc_mb_height);
237 av_assert1(s->mb_stride == s->buffer_pools.alloc_mb_stride);
238 11259 ret = ff_mpv_alloc_pic_accessories(s->avctx, dst, &s->sc,
239 &s->buffer_pools, s->mb_height);
240
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 11259 if (ret < 0)
241 ✗ goto fail;
242
243 11259 return 0;
244 ✗ fail:
245 ✗ ff_mpv_unref_picture(dst);
246 ✗ return ret;
247 }
248
249 21 static int av_cold alloc_dummy_frame(MpegEncContext *s, MPVWorkPicture *dst)
250 {
251 MPVPicture *pic;
252 21 int ret = alloc_picture(s, dst, 1);
253
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 21 if (ret < 0)
254 ✗ return ret;
255
256 21 pic = dst->ptr;
257 21 pic->dummy = 1;
258
259 21 ff_thread_progress_report(&pic->progress, INT_MAX);
260
261 21 return 0;
262 }
263
264 21 static void color_frame(AVFrame *frame, int luma)
265 {
266 int h_chroma_shift, v_chroma_shift;
267
268
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 9909 for (int i = 0; i < frame->height; i++)
269 9888 memset(frame->data[0] + frame->linesize[0] * i, luma, frame->width);
270
271
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 21 if (!frame->data[1])
272 ✗ return;
273 21 av_pix_fmt_get_chroma_sub_sample(frame->format, &h_chroma_shift, &v_chroma_shift);
274
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 4965 for (int i = 0; i < AV_CEIL_RSHIFT(frame->height, v_chroma_shift); i++) {
275 4944 memset(frame->data[1] + frame->linesize[1] * i,
276 4944 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
277 4944 memset(frame->data[2] + frame->linesize[2] * i,
278 4944 0x80, AV_CEIL_RSHIFT(frame->width, h_chroma_shift));
279 }
280 }
281
282 11948 int ff_mpv_alloc_dummy_frames(MpegEncContext *s)
283 {
284 11948 AVCodecContext *avctx = s->avctx;
285 int ret;
286
287 av_assert1(!s->last_pic.ptr || s->last_pic.ptr->f->buf[0]);
288 av_assert1(!s->next_pic.ptr || s->next_pic.ptr->f->buf[0]);
289
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 11948 if (!s->last_pic.ptr && s->pict_type != AV_PICTURE_TYPE_I) {
290
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 21 if (s->pict_type == AV_PICTURE_TYPE_B && s->next_pic.ptr)
291 ✗ av_log(avctx, AV_LOG_DEBUG,
292 "allocating dummy last picture for B frame\n");
293
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 21 else if (s->codec_id != AV_CODEC_ID_H261 /* H.261 has no keyframes */ &&
294
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 15 (s->picture_structure == PICT_FRAME || s->first_field))
295 ✗ av_log(avctx, AV_LOG_ERROR,
296 "warning: first frame is no keyframe\n");
297
298 /* Allocate a dummy frame */
299 21 ret = alloc_dummy_frame(s, &s->last_pic);
300
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 21 if (ret < 0)
301 ✗ return ret;
302
303
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 21 if (!avctx->hwaccel) {
304
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 21 int luma_val = s->codec_id == AV_CODEC_ID_FLV1 || s->codec_id == AV_CODEC_ID_H263 ? 16 : 0x80;
305 21 color_frame(s->last_pic.ptr->f, luma_val);
306 }
307 }
308
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 11948 if (!s->next_pic.ptr && s->pict_type == AV_PICTURE_TYPE_B) {
309 /* Allocate a dummy frame */
310 ✗ ret = alloc_dummy_frame(s, &s->next_pic);
311 ✗ if (ret < 0)
312 ✗ return ret;
313 }
314
315
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 11948 av_assert0(s->pict_type == AV_PICTURE_TYPE_I || (s->last_pic.ptr &&
316 s->last_pic.ptr->f->buf[0]));
317
318 11948 return 0;
319 }
320
321 /**
322 * generic function called after decoding
323 * the header and before a frame is decoded.
324 */
325 11238 int ff_mpv_frame_start(MpegEncContext *s, AVCodecContext *avctx)
326 {
327 int ret;
328
329 11238 s->mb_skipped = 0;
330
331
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 11238 if (!ff_thread_can_start_frame(avctx)) {
332 ✗ av_log(avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n");
333 ✗ return AVERROR_BUG;
334 }
335
336 11238 ff_mpv_unref_picture(&s->cur_pic);
337 11238 ret = alloc_picture(s, &s->cur_pic,
338
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 11238 s->pict_type != AV_PICTURE_TYPE_B && !s->droppable);
339
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 11238 if (ret < 0)
340 ✗ return ret;
341
342
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 11238 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_TOP_FIELD_FIRST * !!s->top_field_first;
343 22476 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_INTERLACED *
344
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 11238 (!s->progressive_frame && !s->progressive_sequence);
345 11238 s->cur_pic.ptr->field_picture = s->picture_structure != PICT_FRAME;
346
347 11238 s->cur_pic.ptr->f->pict_type = s->pict_type;
348
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 11238 if (s->pict_type == AV_PICTURE_TYPE_I)
349 1238 s->cur_pic.ptr->f->flags |= AV_FRAME_FLAG_KEY;
350 else
351 10000 s->cur_pic.ptr->f->flags &= ~AV_FRAME_FLAG_KEY;
352
353
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 11238 if (s->pict_type != AV_PICTURE_TYPE_B) {
354 8567 ff_mpv_workpic_from_pic(&s->last_pic, s->next_pic.ptr);
355
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 8567 if (!s->droppable)
356 8567 ff_mpv_workpic_from_pic(&s->next_pic, s->cur_pic.ptr);
357 }
358 ff_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
359 (void*)s->last_pic.ptr, (void*)s->next_pic.ptr, (void*)s->cur_pic.ptr,
360 s->last_pic.ptr ? s->last_pic.ptr->f->data[0] : NULL,
361 s->next_pic.ptr ? s->next_pic.ptr->f->data[0] : NULL,
362 s->cur_pic.ptr ? s->cur_pic.ptr->f->data[0] : NULL,
363 s->pict_type, s->droppable);
364
365 11238 ret = ff_mpv_alloc_dummy_frames(s);
366
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 11238 if (ret < 0)
367 ✗ return ret;
368
369
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 11238 if (s->avctx->debug & FF_DEBUG_NOMC)
370 ✗ color_frame(s->cur_pic.ptr->f, 0x80);
371
372 11238 return 0;
373 }
374
375 /* called after a frame has been decoded. */
376 11238 void ff_mpv_frame_end(MpegEncContext *s)
377 {
378 11238 emms_c();
379
380
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 11238 if (s->cur_pic.reference)
381 8567 ff_thread_progress_report(&s->cur_pic.ptr->progress, INT_MAX);
382 11238 }
383
384 11040 void ff_print_debug_info(const MpegEncContext *s, const MPVPicture *p, AVFrame *pict)
385 {
386 11040 ff_print_debug_info2(s->avctx, pict, p->mb_type,
387 11040 p->qscale_table, p->motion_val,
388 11040 p->mb_width, p->mb_height, p->mb_stride, s->quarter_sample);
389 11040 }
390
391 10268 int ff_mpv_export_qp_table(const MpegEncContext *s, AVFrame *f,
392 const MPVPicture *p, int qp_type)
393 {
394 AVVideoEncParams *par;
395
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 10268 int mult = (qp_type == FF_MPV_QSCALE_TYPE_MPEG1) ? 2 : 1;
396 10268 unsigned int nb_mb = p->mb_height * p->mb_width;
397
398
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 10268 if (!(s->avctx->export_side_data & AV_CODEC_EXPORT_DATA_VIDEO_ENC_PARAMS))
399 10226 return 0;
400
401 42 par = av_video_enc_params_create_side_data(f, AV_VIDEO_ENC_PARAMS_MPEG2, nb_mb);
402
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 42 if (!par)
403 ✗ return AVERROR(ENOMEM);
404
405
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 798 for (unsigned y = 0; y < p->mb_height; y++)
406
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 17388 for (unsigned x = 0; x < p->mb_width; x++) {
407 16632 const unsigned int block_idx = y * p->mb_width + x;
408 16632 const unsigned int mb_xy = y * p->mb_stride + x;
409 16632 AVVideoBlockParams *const b = av_video_enc_params_block(par, block_idx);
410
411 16632 b->src_x = x * 16;
412 16632 b->src_y = y * 16;
413 16632 b->w = 16;
414 16632 b->h = 16;
415
416 16632 b->delta_qp = p->qscale_table[mb_xy] * mult;
417 }
418
419 42 return 0;
420 }
421
422 170482 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
423 {
424 170482 ff_draw_horiz_band(s->avctx, s->cur_pic.ptr->f,
425
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 170482 s->last_pic.ptr ? s->last_pic.ptr->f : NULL,
426 y, h, s->picture_structure,
427 s->first_field, s->low_delay);
428 170482 }
429
430 82 void ff_mpeg_flush(AVCodecContext *avctx)
431 {
432 82 MpegEncContext *const s = avctx->priv_data;
433
434 82 ff_mpv_unref_picture(&s->cur_pic);
435 82 ff_mpv_unref_picture(&s->last_pic);
436 82 ff_mpv_unref_picture(&s->next_pic);
437
438 82 s->mb_x = s->mb_y = 0;
439
440 82 s->pp_time = 0;
441 82 }
442
443 170482 void ff_mpv_report_decode_progress(MpegEncContext *s)
444 {
445
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 170482 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
446 124145 ff_thread_progress_report(&s->cur_pic.ptr->progress, s->mb_y);
447 170482 }
448
449
450 126300 static inline int hpel_motion_lowres(MpegEncContext *s,
451 uint8_t *dest, const uint8_t *src,
452 int field_based, int field_select,
453 int src_x, int src_y,
454 int width, int height, ptrdiff_t stride,
455 int h_edge_pos, int v_edge_pos,
456 int w, int h, const h264_chroma_mc_func *pix_op,
457 int motion_x, int motion_y)
458 {
459 126300 const int lowres = s->avctx->lowres;
460 126300 const int op_index = lowres;
461 126300 const int s_mask = (2 << lowres) - 1;
462 126300 int emu = 0;
463 int sx, sy;
464
465 av_assert2(op_index <= 3);
466
467
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 126300 if (s->quarter_sample) {
468 ✗ motion_x /= 2;
469 ✗ motion_y /= 2;
470 }
471
472 126300 sx = motion_x & s_mask;
473 126300 sy = motion_y & s_mask;
474 126300 src_x += motion_x >> lowres + 1;
475 126300 src_y += motion_y >> lowres + 1;
476
477 126300 src += src_y * stride + src_x;
478
479
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 126300 if ((unsigned)src_x > FFMAX( h_edge_pos - (!!sx) - w, 0) ||
480
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 126300 (unsigned)src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - h, 0)) {
481 298 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, src,
482 s->linesize, s->linesize,
483 298 w + 1, (h + 1) << field_based,
484 src_x, src_y * (1 << field_based),
485 h_edge_pos, v_edge_pos);
486 298 src = s->sc.edge_emu_buffer;
487 298 emu = 1;
488 }
489
490 126300 sx = (sx << 2) >> lowres;
491 126300 sy = (sy << 2) >> lowres;
492
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 126300 if (field_select)
493 ✗ src += s->linesize;
494 126300 pix_op[op_index](dest, src, stride, h, sx, sy);
495 126300 return emu;
496 }
497
498 /* apply one mpeg motion vector to the three components */
499 24814 static av_always_inline void mpeg_motion_lowres(MpegEncContext *s,
500 uint8_t *dest_y,
501 uint8_t *dest_cb,
502 uint8_t *dest_cr,
503 int field_based,
504 int bottom_field,
505 int field_select,
506 uint8_t *const *ref_picture,
507 const h264_chroma_mc_func *pix_op,
508 int motion_x, int motion_y,
509 int h, int mb_y)
510 {
511 const uint8_t *ptr_y, *ptr_cb, *ptr_cr;
512 int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, sx, sy, uvsx, uvsy;
513 ptrdiff_t uvlinesize, linesize;
514 24814 const int lowres = s->avctx->lowres;
515 24814 const int op_index = lowres - 1 + s->chroma_x_shift;
516 24814 const int block_s = 8 >> lowres;
517 24814 const int s_mask = (2 << lowres) - 1;
518 24814 const int h_edge_pos = s->h_edge_pos >> lowres;
519 24814 const int v_edge_pos = s->v_edge_pos >> lowres;
520
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 24814 int hc = s->chroma_y_shift ? (h+1-bottom_field)>>1 : h;
521
522 av_assert2(op_index <= 3);
523
524 24814 linesize = s->cur_pic.linesize[0] << field_based;
525 24814 uvlinesize = s->cur_pic.linesize[1] << field_based;
526
527 // FIXME obviously not perfect but qpel will not work in lowres anyway
528
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 24814 if (s->quarter_sample) {
529 ✗ motion_x /= 2;
530 ✗ motion_y /= 2;
531 }
532
533
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 24814 if (field_based) {
534 ✗ motion_y += (bottom_field - field_select)*((1 << lowres)-1);
535 }
536
537 24814 sx = motion_x & s_mask;
538 24814 sy = motion_y & s_mask;
539 24814 src_x = s->mb_x * 2 * block_s + (motion_x >> lowres + 1);
540 24814 src_y = (mb_y * 2 * block_s >> field_based) + (motion_y >> lowres + 1);
541
542
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 24814 if (s->out_format == FMT_H263) {
543 24814 uvsx = ((motion_x >> 1) & s_mask) | (sx & 1);
544 24814 uvsy = ((motion_y >> 1) & s_mask) | (sy & 1);
545 24814 uvsrc_x = src_x >> 1;
546 24814 uvsrc_y = src_y >> 1;
547 ✗ } else if (s->out_format == FMT_H261) {
548 // even chroma mv's are full pel in H261
549 ✗ mx = motion_x / 4;
550 ✗ my = motion_y / 4;
551 ✗ uvsx = (2 * mx) & s_mask;
552 ✗ uvsy = (2 * my) & s_mask;
553 ✗ uvsrc_x = s->mb_x * block_s + (mx >> lowres);
554 ✗ uvsrc_y = mb_y * block_s + (my >> lowres);
555 } else {
556 ✗ if (s->chroma_y_shift) {
557 ✗ mx = motion_x / 2;
558 ✗ my = motion_y / 2;
559 ✗ uvsx = mx & s_mask;
560 ✗ uvsy = my & s_mask;
561 ✗ uvsrc_x = s->mb_x * block_s + (mx >> lowres + 1);
562 ✗ uvsrc_y = (mb_y * block_s >> field_based) + (my >> lowres + 1);
563 } else {
564 ✗ if (s->chroma_x_shift) {
565 //Chroma422
566 ✗ mx = motion_x / 2;
567 ✗ uvsx = mx & s_mask;
568 ✗ uvsy = motion_y & s_mask;
569 ✗ uvsrc_y = src_y;
570 ✗ uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1));
571 } else {
572 //Chroma444
573 ✗ uvsx = motion_x & s_mask;
574 ✗ uvsy = motion_y & s_mask;
575 ✗ uvsrc_x = src_x;
576 ✗ uvsrc_y = src_y;
577 }
578 }
579 }
580
581 24814 ptr_y = ref_picture[0] + src_y * linesize + src_x;
582 24814 ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x;
583 24814 ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x;
584
585
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 24814 if ((unsigned) src_x > FFMAX( h_edge_pos - (!!sx) - 2 * block_s, 0) || uvsrc_y<0 ||
586
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 24712 (unsigned) src_y > FFMAX((v_edge_pos >> field_based) - (!!sy) - FFMAX(h, hc<<s->chroma_y_shift), 0)) {
587 197 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr_y,
588 linesize >> field_based, linesize >> field_based,
589 17, 17 + field_based,
590 src_x, src_y * (1 << field_based), h_edge_pos,
591 v_edge_pos);
592 197 ptr_y = s->sc.edge_emu_buffer;
593 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
594 197 uint8_t *ubuf = s->sc.edge_emu_buffer + 18 * s->linesize;
595 197 uint8_t *vbuf =ubuf + 10 * s->uvlinesize;
596
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 197 if (s->workaround_bugs & FF_BUG_IEDGE)
597 ✗ vbuf -= s->uvlinesize;
598 197 s->vdsp.emulated_edge_mc(ubuf, ptr_cb,
599 uvlinesize >> field_based, uvlinesize >> field_based,
600 9, 9 + field_based,
601 uvsrc_x, uvsrc_y * (1 << field_based),
602 h_edge_pos >> 1, v_edge_pos >> 1);
603 197 s->vdsp.emulated_edge_mc(vbuf, ptr_cr,
604 uvlinesize >> field_based,uvlinesize >> field_based,
605 9, 9 + field_based,
606 uvsrc_x, uvsrc_y * (1 << field_based),
607 h_edge_pos >> 1, v_edge_pos >> 1);
608 197 ptr_cb = ubuf;
609 197 ptr_cr = vbuf;
610 }
611 }
612
613 // FIXME use this for field pix too instead of the obnoxious hack which changes picture.f->data
614
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 24814 if (bottom_field) {
615 ✗ dest_y += s->linesize;
616 ✗ dest_cb += s->uvlinesize;
617 ✗ dest_cr += s->uvlinesize;
618 }
619
620
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 24814 if (field_select) {
621 ✗ ptr_y += s->linesize;
622 ✗ ptr_cb += s->uvlinesize;
623 ✗ ptr_cr += s->uvlinesize;
624 }
625
626 24814 sx = (sx << 2) >> lowres;
627 24814 sy = (sy << 2) >> lowres;
628 24814 pix_op[lowres - 1](dest_y, ptr_y, linesize, h, sx, sy);
629
630 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
631 24814 uvsx = (uvsx << 2) >> lowres;
632 24814 uvsy = (uvsy << 2) >> lowres;
633
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 24814 if (hc) {
634 24814 pix_op[op_index](dest_cb, ptr_cb, uvlinesize, hc, uvsx, uvsy);
635 24814 pix_op[op_index](dest_cr, ptr_cr, uvlinesize, hc, uvsx, uvsy);
636 }
637 }
638 // FIXME h261 lowres loop filter
639 24814 }
640
641 31575 static inline void chroma_4mv_motion_lowres(MpegEncContext *s,
642 uint8_t *dest_cb, uint8_t *dest_cr,
643 uint8_t *const *ref_picture,
644 const h264_chroma_mc_func * pix_op,
645 int mx, int my)
646 {
647 31575 const int lowres = s->avctx->lowres;
648 31575 const int op_index = lowres;
649 31575 const int block_s = 8 >> lowres;
650 31575 const int s_mask = (2 << lowres) - 1;
651 31575 const int h_edge_pos = s->h_edge_pos >> lowres + 1;
652 31575 const int v_edge_pos = s->v_edge_pos >> lowres + 1;
653 31575 int emu = 0, src_x, src_y, sx, sy;
654 ptrdiff_t offset;
655 const uint8_t *ptr;
656
657 av_assert2(op_index <= 3);
658
659
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 31575 if (s->quarter_sample) {
660 ✗ mx /= 2;
661 ✗ my /= 2;
662 }
663
664 /* In case of 8X8, we construct a single chroma motion vector
665 with a special rounding */
666 31575 mx = ff_h263_round_chroma(mx);
667 31575 my = ff_h263_round_chroma(my);
668
669 31575 sx = mx & s_mask;
670 31575 sy = my & s_mask;
671 31575 src_x = s->mb_x * block_s + (mx >> lowres + 1);
672 31575 src_y = s->mb_y * block_s + (my >> lowres + 1);
673
674 31575 offset = src_y * s->uvlinesize + src_x;
675 31575 ptr = ref_picture[1] + offset;
676
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677
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 31575 (unsigned) src_y > FFMAX(v_edge_pos - (!!sy) - block_s, 0)) {
678 144 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
679 s->uvlinesize, s->uvlinesize,
680 9, 9,
681 src_x, src_y, h_edge_pos, v_edge_pos);
682 144 ptr = s->sc.edge_emu_buffer;
683 144 emu = 1;
684 }
685 31575 sx = (sx << 2) >> lowres;
686 31575 sy = (sy << 2) >> lowres;
687 31575 pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy);
688
689 31575 ptr = ref_picture[2] + offset;
690
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 31575 if (emu) {
691 144 s->vdsp.emulated_edge_mc(s->sc.edge_emu_buffer, ptr,
692 s->uvlinesize, s->uvlinesize,
693 9, 9,
694 src_x, src_y, h_edge_pos, v_edge_pos);
695 144 ptr = s->sc.edge_emu_buffer;
696 }
697 31575 pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy);
698 31575 }
699
700 /**
701 * motion compensation of a single macroblock
702 * @param s context
703 * @param dest_y luma destination pointer
704 * @param dest_cb chroma cb/u destination pointer
705 * @param dest_cr chroma cr/v destination pointer
706 * @param dir direction (0->forward, 1->backward)
707 * @param ref_picture array[3] of pointers to the 3 planes of the reference picture
708 * @param pix_op halfpel motion compensation function (average or put normally)
709 * the motion vectors are taken from s->mv and the MV type from s->mv_type
710 */
711 56389 static inline void MPV_motion_lowres(MpegEncContext *s,
712 uint8_t *dest_y, uint8_t *dest_cb,
713 uint8_t *dest_cr,
714 int dir, uint8_t *const *ref_picture,
715 const h264_chroma_mc_func *pix_op)
716 {
717 int mx, my;
718 int mb_x, mb_y;
719 56389 const int lowres = s->avctx->lowres;
720 56389 const int block_s = 8 >>lowres;
721
722 56389 mb_x = s->mb_x;
723 56389 mb_y = s->mb_y;
724
725
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 56389 switch (s->mv_type) {
726 24814 case MV_TYPE_16X16:
727 24814 mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
728 0, 0, 0,
729 ref_picture, pix_op,
730 s->mv[dir][0][0], s->mv[dir][0][1],
731 2 * block_s, mb_y);
732 24814 break;
733 31575 case MV_TYPE_8X8:
734 31575 mx = 0;
735 31575 my = 0;
736
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 157875 for (int i = 0; i < 4; i++) {
737 126300 hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) *
738 126300 s->linesize) * block_s,
739 ref_picture[0], 0, 0,
740 126300 (2 * mb_x + (i & 1)) * block_s,
741 126300 (2 * mb_y + (i >> 1)) * block_s,
742 s->width, s->height, s->linesize,
743 126300 s->h_edge_pos >> lowres, s->v_edge_pos >> lowres,
744 block_s, block_s, pix_op,
745 s->mv[dir][i][0], s->mv[dir][i][1]);
746
747 126300 mx += s->mv[dir][i][0];
748 126300 my += s->mv[dir][i][1];
749 }
750
751 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY))
752 31575 chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture,
753 pix_op, mx, my);
754 31575 break;
755 ✗ case MV_TYPE_FIELD:
756 ✗ if (s->picture_structure == PICT_FRAME) {
757 /* top field */
758 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
759 1, 0, s->field_select[dir][0],
760 ref_picture, pix_op,
761 s->mv[dir][0][0], s->mv[dir][0][1],
762 block_s, mb_y);
763 /* bottom field */
764 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
765 1, 1, s->field_select[dir][1],
766 ref_picture, pix_op,
767 s->mv[dir][1][0], s->mv[dir][1][1],
768 block_s, mb_y);
769 } else {
770 ✗ if (s->picture_structure != s->field_select[dir][0] + 1 &&
771 ✗ s->pict_type != AV_PICTURE_TYPE_B && !s->first_field) {
772 ✗ ref_picture = s->cur_pic.ptr->f->data;
773 }
774 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
775 0, 0, s->field_select[dir][0],
776 ref_picture, pix_op,
777 s->mv[dir][0][0],
778 s->mv[dir][0][1], 2 * block_s, mb_y >> 1);
779 }
780 ✗ break;
781 ✗ case MV_TYPE_16X8:
782 ✗ for (int i = 0; i < 2; i++) {
783 uint8_t *const *ref2picture;
784
785 ✗ if (s->picture_structure == s->field_select[dir][i] + 1 ||
786 ✗ s->pict_type == AV_PICTURE_TYPE_B || s->first_field) {
787 ✗ ref2picture = ref_picture;
788 } else {
789 ✗ ref2picture = s->cur_pic.ptr->f->data;
790 }
791
792 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
793 0, 0, s->field_select[dir][i],
794 ref2picture, pix_op,
795 ✗ s->mv[dir][i][0], s->mv[dir][i][1] +
796 ✗ 2 * block_s * i, block_s, mb_y >> 1);
797
798 ✗ dest_y += 2 * block_s * s->linesize;
799 ✗ dest_cb += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
800 ✗ dest_cr += (2 * block_s >> s->chroma_y_shift) * s->uvlinesize;
801 }
802 ✗ break;
803 ✗ case MV_TYPE_DMV:
804 ✗ if (s->picture_structure == PICT_FRAME) {
805 ✗ for (int i = 0; i < 2; i++) {
806 ✗ for (int j = 0; j < 2; j++) {
807 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
808 1, j, j ^ i,
809 ref_picture, pix_op,
810 ✗ s->mv[dir][2 * i + j][0],
811 ✗ s->mv[dir][2 * i + j][1],
812 block_s, mb_y);
813 }
814 ✗ pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
815 }
816 } else {
817 ✗ for (int i = 0; i < 2; i++) {
818 ✗ mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr,
819 ✗ 0, 0, s->picture_structure != i + 1,
820 ref_picture, pix_op,
821 ✗ s->mv[dir][2 * i][0],s->mv[dir][2 * i][1],
822 2 * block_s, mb_y >> 1);
823
824 // after put we make avg of the same block
825 ✗ pix_op = s->h264chroma.avg_h264_chroma_pixels_tab;
826
827 // opposite parity is always in the same
828 // frame if this is second field
829 ✗ if (!s->first_field) {
830 ✗ ref_picture = s->cur_pic.ptr->f->data;
831 }
832 }
833 }
834 ✗ break;
835 56389 default:
836 av_assert2(0);
837 }
838 56389 }
839
840 /**
841 * find the lowest MB row referenced in the MVs
842 */
843 60133 static int lowest_referenced_row(MpegEncContext *s, int dir)
844 {
845 60133 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
846 int off, mvs;
847
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 60133 if (s->picture_structure != PICT_FRAME || s->mcsel)
849 ✗ goto unhandled;
850
851
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 60133 switch (s->mv_type) {
852 60133 case MV_TYPE_16X16:
853 60133 mvs = 1;
854 60133 break;
855 ✗ case MV_TYPE_16X8:
856 ✗ mvs = 2;
857 ✗ break;
858 ✗ case MV_TYPE_8X8:
859 ✗ mvs = 4;
860 ✗ break;
861 ✗ default:
862 ✗ goto unhandled;
863 }
864
865
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 120266 for (int i = 0; i < mvs; i++) {
866 60133 int my = s->mv[dir][i][1];
867 60133 my_max = FFMAX(my_max, my);
868 60133 my_min = FFMIN(my_min, my);
869 }
870
871 60133 off = ((FFMAX(-my_min, my_max) << qpel_shift) + 63) >> 6;
872
873 60133 return av_clip(s->mb_y + off, 0, s->mb_height - 1);
874 ✗ unhandled:
875 ✗ return s->mb_height - 1;
876 }
877
878 /* add block[] to dest[] */
879 23124786 static inline void add_dct(MpegEncContext *s,
880 int16_t *block, int i, uint8_t *dest, int line_size)
881 {
882
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 23124786 if (s->block_last_index[i] >= 0) {
883 8334107 s->idsp.idct_add(dest, line_size, block);
884 }
885 23124786 }
886
887 /* put block[] to dest[] */
888 1756434 static inline void put_dct(MpegEncContext *s,
889 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
890 {
891 1756434 s->dct_unquantize_intra(s, block, i, qscale);
892 1756434 s->idsp.idct_put(dest, line_size, block);
893 1756434 }
894
895 2942796 static inline void add_dequant_dct(MpegEncContext *s,
896 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
897 {
898
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 2942796 if (s->block_last_index[i] >= 0) {
899 1108259 s->dct_unquantize_inter(s, block, i, qscale);
900
901 1108259 s->idsp.idct_add(dest, line_size, block);
902 }
903 2942796 }
904
905 #define NOT_MPEG12_H261 0
906 #define MAY_BE_MPEG12_H261 1
907 #define DEFINITELY_MPEG12_H261 2
908
909 /* generic function called after a macroblock has been parsed by the decoder.
910
911 Important variables used:
912 s->mb_intra : true if intra macroblock
913 s->mv_dir : motion vector direction
914 s->mv_type : motion vector type
915 s->mv : motion vector
916 s->interlaced_dct : true if interlaced dct used (mpeg2)
917 */
918 static av_always_inline
919 5145058 void mpv_reconstruct_mb_internal(MpegEncContext *s, int16_t block[12][64],
920 int lowres_flag, int is_mpeg12)
921 {
922 #define IS_MPEG12_H261(s) (is_mpeg12 == MAY_BE_MPEG12_H261 ? ((s)->out_format <= FMT_H261) : is_mpeg12)
923 5145058 uint8_t *dest_y = s->dest[0], *dest_cb = s->dest[1], *dest_cr = s->dest[2];
924 int dct_linesize, dct_offset;
925 5145058 const int linesize = s->cur_pic.linesize[0]; //not s->linesize as this would be wrong for field pics
926 5145058 const int uvlinesize = s->cur_pic.linesize[1];
927
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 5145058 const int block_size = lowres_flag ? 8 >> s->avctx->lowres : 8;
928
929 5145058 dct_linesize = linesize << s->interlaced_dct;
930
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 5145058 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
931
932
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 5145058 if (!s->mb_intra) {
933 /* motion handling */
934
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 4512429 if (HAVE_THREADS && is_mpeg12 != DEFINITELY_MPEG12_H261 &&
935
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 2130089 s->avctx->active_thread_type & FF_THREAD_FRAME) {
936
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 60133 if (s->mv_dir & MV_DIR_FORWARD) {
937 60133 ff_thread_progress_await(&s->last_pic.ptr->progress,
938 lowest_referenced_row(s, 0));
939 }
940
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 60133 if (s->mv_dir & MV_DIR_BACKWARD) {
941 ✗ ff_thread_progress_await(&s->next_pic.ptr->progress,
942 lowest_referenced_row(s, 1));
943 }
944 }
945
946
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 4512429 if (lowres_flag) {
947 41123 const h264_chroma_mc_func *op_pix = s->h264chroma.put_h264_chroma_pixels_tab;
948
949
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 41123 if (s->mv_dir & MV_DIR_FORWARD) {
950 37429 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix);
951 37429 op_pix = s->h264chroma.avg_h264_chroma_pixels_tab;
952 }
953
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 41123 if (s->mv_dir & MV_DIR_BACKWARD) {
954 18960 MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix);
955 }
956 } else {
957 const op_pixels_func (*op_pix)[4];
958 const qpel_mc_func (*op_qpix)[16];
959
960
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 4471306 if ((is_mpeg12 == DEFINITELY_MPEG12_H261 || !s->no_rounding) || s->pict_type == AV_PICTURE_TYPE_B) {
961 3671641 op_pix = s->hdsp.put_pixels_tab;
962 3671641 op_qpix = s->qdsp.put_qpel_pixels_tab;
963 } else {
964 799665 op_pix = s->hdsp.put_no_rnd_pixels_tab;
965 799665 op_qpix = s->qdsp.put_no_rnd_qpel_pixels_tab;
966 }
967
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 4471306 if (s->mv_dir & MV_DIR_FORWARD) {
968 4163985 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_pic.data, op_pix, op_qpix);
969 4163985 op_pix = s->hdsp.avg_pixels_tab;
970 4163985 op_qpix = s->qdsp.avg_qpel_pixels_tab;
971 }
972
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 4471306 if (s->mv_dir & MV_DIR_BACKWARD) {
973 936071 ff_mpv_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_pic.data, op_pix, op_qpix);
974 }
975 }
976
977 /* skip dequant / idct if we are really late ;) */
978
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 4512429 if (s->avctx->skip_idct) {
979 ✗ if ( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
980 ✗ ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
981 ✗ || s->avctx->skip_idct >= AVDISCARD_ALL)
982 ✗ return;
983 }
984
985 /* add dct residue */
986
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 4512429 if (!(IS_MPEG12_H261(s) || s->msmpeg4_version != MSMP4_UNUSED ||
987
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 1761221 (s->codec_id == AV_CODEC_ID_MPEG4 && !s->mpeg_quant))) {
988 490466 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
989 490466 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
990 490466 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
991 490466 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
992
993 490466 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
994 av_assert2(s->chroma_y_shift);
995 490466 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
996 490466 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
997 }
998
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 4021963 } else if (is_mpeg12 == DEFINITELY_MPEG12_H261 || lowres_flag || (s->codec_id != AV_CODEC_ID_WMV2)) {
999 3831814 add_dct(s, block[0], 0, dest_y , dct_linesize);
1000 3831814 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
1001 3831814 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
1002 3831814 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
1003
1004 3831814 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1005
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 3831814 if (s->chroma_y_shift) {//Chroma420
1006 3764863 add_dct(s, block[4], 4, dest_cb, uvlinesize);
1007 3764863 add_dct(s, block[5], 5, dest_cr, uvlinesize);
1008 } else {
1009 //chroma422
1010 66951 dct_linesize = uvlinesize << s->interlaced_dct;
1011
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 66951 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
1012
1013 66951 add_dct(s, block[4], 4, dest_cb, dct_linesize);
1014 66951 add_dct(s, block[5], 5, dest_cr, dct_linesize);
1015 66951 add_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize);
1016 66951 add_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize);
1017
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 66951 if (!s->chroma_x_shift) {//Chroma444
1018 ✗ add_dct(s, block[8], 8, dest_cb + block_size, dct_linesize);
1019 ✗ add_dct(s, block[9], 9, dest_cr + block_size, dct_linesize);
1020 ✗ add_dct(s, block[10], 10, dest_cb + block_size + dct_offset, dct_linesize);
1021 ✗ add_dct(s, block[11], 11, dest_cr + block_size + dct_offset, dct_linesize);
1022 }
1023 }
1024 } //fi gray
1025 } else if (CONFIG_WMV2_DECODER) {
1026 190149 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
1027 }
1028 } else {
1029 /* Only MPEG-4 Simple Studio Profile is supported in > 8-bit mode.
1030 TODO: Integrate 10-bit properly into mpegvideo.c so that ER works properly */
1031
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 632629 if (is_mpeg12 != DEFINITELY_MPEG12_H261 && CONFIG_MPEG4_DECODER &&
1032 /* s->codec_id == AV_CODEC_ID_MPEG4 && */
1033
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 294089 s->avctx->bits_per_raw_sample > 8) {
1034 1350 ff_mpeg4_decode_studio(s, dest_y, dest_cb, dest_cr, block_size,
1035 uvlinesize, dct_linesize, dct_offset);
1036
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 631279 } else if (!IS_MPEG12_H261(s)) {
1037 /* dct only in intra block */
1038 292739 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
1039 292739 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
1040 292739 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
1041 292739 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
1042
1043 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1044
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 292739 if (s->chroma_y_shift) {
1045 292739 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
1046 292739 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
1047 } else {
1048 ✗ dct_offset >>= 1;
1049 ✗ dct_linesize >>= 1;
1050 ✗ put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
1051 ✗ put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
1052 ✗ put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
1053 ✗ put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
1054 }
1055 }
1056 } else {
1057 338540 s->idsp.idct_put(dest_y, dct_linesize, block[0]);
1058 338540 s->idsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
1059 338540 s->idsp.idct_put(dest_y + dct_offset, dct_linesize, block[2]);
1060 338540 s->idsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
1061
1062 if (!CONFIG_GRAY || !(s->avctx->flags & AV_CODEC_FLAG_GRAY)) {
1063
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 338540 if (s->chroma_y_shift) {
1064 284381 s->idsp.idct_put(dest_cb, uvlinesize, block[4]);
1065 284381 s->idsp.idct_put(dest_cr, uvlinesize, block[5]);
1066 } else {
1067 54159 dct_linesize = uvlinesize << s->interlaced_dct;
1068
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 54159 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize*block_size;
1069
1070 54159 s->idsp.idct_put(dest_cb, dct_linesize, block[4]);
1071 54159 s->idsp.idct_put(dest_cr, dct_linesize, block[5]);
1072 54159 s->idsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
1073 54159 s->idsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
1074
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 54159 if (!s->chroma_x_shift) { //Chroma444
1075 ✗ s->idsp.idct_put(dest_cb + block_size, dct_linesize, block[8]);
1076 ✗ s->idsp.idct_put(dest_cr + block_size, dct_linesize, block[9]);
1077 ✗ s->idsp.idct_put(dest_cb + block_size + dct_offset, dct_linesize, block[10]);
1078 ✗ s->idsp.idct_put(dest_cr + block_size + dct_offset, dct_linesize, block[11]);
1079 }
1080 }
1081 } //gray
1082 }
1083 }
1084 }
1085
1086 5145058 void ff_mpv_reconstruct_mb(MpegEncContext *s, int16_t block[12][64])
1087 {
1088 5145058 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1089 5145058 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1090
1091 5145058 s->cur_pic.qscale_table[mb_xy] = s->qscale;
1092
1093 /* avoid copy if macroblock skipped in last frame too */
1094
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 5145058 if (s->mb_skipped) {
1095 387772 s->mb_skipped = 0;
1096 av_assert2(s->pict_type != AV_PICTURE_TYPE_I);
1097 387772 *mbskip_ptr = 1;
1098
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 4757286 } else if (!s->cur_pic.reference) {
1099 1130444 *mbskip_ptr = 1;
1100 } else{
1101 3626842 *mbskip_ptr = 0; /* not skipped */
1102 }
1103
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 5145058 if (s->avctx->debug & FF_DEBUG_DCT_COEFF) {
1105 /* print DCT coefficients */
1106 ✗ av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1107 ✗ for (int i = 0; i < 6; i++) {
1108 ✗ for (int j = 0; j < 64; j++) {
1109 ✗ av_log(s->avctx, AV_LOG_DEBUG, "%5d",
1110 ✗ block[i][s->idsp.idct_permutation[j]]);
1111 }
1112 ✗ av_log(s->avctx, AV_LOG_DEBUG, "\n");
1113 }
1114 }
1115
1116 av_assert2((s->out_format <= FMT_H261) == (s->out_format == FMT_H261 || s->out_format == FMT_MPEG1));
1117
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 5145058 if (!s->avctx->lowres) {
1118 #if !CONFIG_SMALL
1119
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 5101558 if (s->out_format <= FMT_H261)
1120 2720880 mpv_reconstruct_mb_internal(s, block, 0, DEFINITELY_MPEG12_H261);
1121 else
1122 2380678 mpv_reconstruct_mb_internal(s, block, 0, NOT_MPEG12_H261);
1123 #else
1124 mpv_reconstruct_mb_internal(s, block, 0, MAY_BE_MPEG12_H261);
1125 #endif
1126 } else
1127 43500 mpv_reconstruct_mb_internal(s, block, 1, MAY_BE_MPEG12_H261);
1128 5145058 }
1129