mpegvideo: move encode-only parts of common_end() to encode_end()
[libav.git] / libavcodec / mpegvideo.c
1 /*
2 * The simplest mpeg encoder (well, it was the simplest!)
3 * Copyright (c) 2000,2001 Fabrice Bellard
4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
8 * This file is part of Libav.
9 *
10 * Libav is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
13 * version 2.1 of the License, or (at your option) any later version.
14 *
15 * Libav is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
19 *
20 * You should have received a copy of the GNU Lesser General Public
21 * License along with Libav; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
23 */
24
25 /**
26 * @file
27 * The simplest mpeg encoder (well, it was the simplest!).
28 */
29
30 #include "libavutil/attributes.h"
31 #include "libavutil/avassert.h"
32 #include "libavutil/imgutils.h"
33 #include "libavutil/internal.h"
34 #include "avcodec.h"
35 #include "dsputil.h"
36 #include "internal.h"
37 #include "mathops.h"
38 #include "mpegvideo.h"
39 #include "mjpegenc.h"
40 #include "msmpeg4.h"
41 #include "xvmc_internal.h"
42 #include "thread.h"
43 #include <limits.h>
44
45 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
46 int16_t *block, int n, int qscale);
47 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
48 int16_t *block, int n, int qscale);
49 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
50 int16_t *block, int n, int qscale);
51 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
52 int16_t *block, int n, int qscale);
53 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
54 int16_t *block, int n, int qscale);
55 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
56 int16_t *block, int n, int qscale);
57 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
58 int16_t *block, int n, int qscale);
59
60 static const uint8_t ff_default_chroma_qscale_table[32] = {
61 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
62 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
63 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
64 };
65
66 const uint8_t ff_mpeg1_dc_scale_table[128] = {
67 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
68 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
69 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
70 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
71 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
72 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
73 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
74 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
75 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8,
76 };
77
78 static const uint8_t mpeg2_dc_scale_table1[128] = {
79 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
80 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
81 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
82 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
83 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
84 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
85 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
86 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
87 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4,
88 };
89
90 static const uint8_t mpeg2_dc_scale_table2[128] = {
91 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
92 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
93 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
94 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
95 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
96 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
97 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
98 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
99 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
100 };
101
102 static const uint8_t mpeg2_dc_scale_table3[128] = {
103 // 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
104 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
105 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
106 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
107 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
108 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
109 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
110 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
111 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
112 };
113
114 const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
115 ff_mpeg1_dc_scale_table,
116 mpeg2_dc_scale_table1,
117 mpeg2_dc_scale_table2,
118 mpeg2_dc_scale_table3,
119 };
120
121 const enum AVPixelFormat ff_pixfmt_list_420[] = {
122 AV_PIX_FMT_YUV420P,
123 AV_PIX_FMT_NONE
124 };
125
126 static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type,
127 int (*mv)[2][4][2],
128 int mb_x, int mb_y, int mb_intra, int mb_skipped)
129 {
130 MpegEncContext *s = opaque;
131
132 s->mv_dir = mv_dir;
133 s->mv_type = mv_type;
134 s->mb_intra = mb_intra;
135 s->mb_skipped = mb_skipped;
136 s->mb_x = mb_x;
137 s->mb_y = mb_y;
138 memcpy(s->mv, mv, sizeof(*mv));
139
140 ff_init_block_index(s);
141 ff_update_block_index(s);
142
143 s->dsp.clear_blocks(s->block[0]);
144
145 s->dest[0] = s->current_picture.f.data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16;
146 s->dest[1] = s->current_picture.f.data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
147 s->dest[2] = s->current_picture.f.data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift);
148
149 assert(ref == 0);
150 ff_MPV_decode_mb(s, s->block);
151 }
152
153 /* init common dct for both encoder and decoder */
154 av_cold int ff_dct_common_init(MpegEncContext *s)
155 {
156 ff_dsputil_init(&s->dsp, s->avctx);
157 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
158 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
159
160 s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c;
161 s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c;
162 s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c;
163 s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c;
164 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c;
165 if (s->flags & CODEC_FLAG_BITEXACT)
166 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
167 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
168
169 if (ARCH_ARM)
170 ff_MPV_common_init_arm(s);
171 if (ARCH_BFIN)
172 ff_MPV_common_init_bfin(s);
173 if (ARCH_PPC)
174 ff_MPV_common_init_ppc(s);
175 if (ARCH_X86)
176 ff_MPV_common_init_x86(s);
177
178 /* load & permutate scantables
179 * note: only wmv uses different ones
180 */
181 if (s->alternate_scan) {
182 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan);
183 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan);
184 } else {
185 ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct);
186 ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct);
187 }
188 ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan);
189 ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan);
190
191 return 0;
192 }
193
194 int ff_mpv_frame_size_alloc(MpegEncContext *s, int linesize)
195 {
196 int alloc_size = FFALIGN(FFABS(linesize) + 32, 32);
197
198 // edge emu needs blocksize + filter length - 1
199 // (= 17x17 for halfpel / 21x21 for h264)
200 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
201 // at uvlinesize. It supports only YUV420 so 24x24 is enough
202 // linesize * interlaced * MBsize
203 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 2 * 24,
204 fail);
205
206 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 2 * 16 * 3,
207 fail)
208 s->me.temp = s->me.scratchpad;
209 s->rd_scratchpad = s->me.scratchpad;
210 s->b_scratchpad = s->me.scratchpad;
211 s->obmc_scratchpad = s->me.scratchpad + 16;
212
213 return 0;
214 fail:
215 av_freep(&s->edge_emu_buffer);
216 return AVERROR(ENOMEM);
217 }
218
219 /**
220 * Allocate a frame buffer
221 */
222 static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
223 {
224 int r, ret;
225
226 pic->tf.f = &pic->f;
227 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
228 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
229 s->codec_id != AV_CODEC_ID_MSS2)
230 r = ff_thread_get_buffer(s->avctx, &pic->tf,
231 pic->reference ? AV_GET_BUFFER_FLAG_REF : 0);
232 else {
233 pic->f.width = s->avctx->width;
234 pic->f.height = s->avctx->height;
235 pic->f.format = s->avctx->pix_fmt;
236 r = avcodec_default_get_buffer2(s->avctx, &pic->f, 0);
237 }
238
239 if (r < 0 || !pic->f.buf[0]) {
240 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
241 r, pic->f.data[0]);
242 return -1;
243 }
244
245 if (s->avctx->hwaccel) {
246 assert(!pic->hwaccel_picture_private);
247 if (s->avctx->hwaccel->priv_data_size) {
248 pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->priv_data_size);
249 if (!pic->hwaccel_priv_buf) {
250 av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n");
251 return -1;
252 }
253 pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data;
254 }
255 }
256
257 if (s->linesize && (s->linesize != pic->f.linesize[0] ||
258 s->uvlinesize != pic->f.linesize[1])) {
259 av_log(s->avctx, AV_LOG_ERROR,
260 "get_buffer() failed (stride changed)\n");
261 ff_mpeg_unref_picture(s, pic);
262 return -1;
263 }
264
265 if (pic->f.linesize[1] != pic->f.linesize[2]) {
266 av_log(s->avctx, AV_LOG_ERROR,
267 "get_buffer() failed (uv stride mismatch)\n");
268 ff_mpeg_unref_picture(s, pic);
269 return -1;
270 }
271
272 if (!s->edge_emu_buffer &&
273 (ret = ff_mpv_frame_size_alloc(s, pic->f.linesize[0])) < 0) {
274 av_log(s->avctx, AV_LOG_ERROR,
275 "get_buffer() failed to allocate context scratch buffers.\n");
276 ff_mpeg_unref_picture(s, pic);
277 return ret;
278 }
279
280 return 0;
281 }
282
283 void ff_free_picture_tables(Picture *pic)
284 {
285 int i;
286
287 av_buffer_unref(&pic->mb_var_buf);
288 av_buffer_unref(&pic->mc_mb_var_buf);
289 av_buffer_unref(&pic->mb_mean_buf);
290 av_buffer_unref(&pic->mbskip_table_buf);
291 av_buffer_unref(&pic->qscale_table_buf);
292 av_buffer_unref(&pic->mb_type_buf);
293
294 for (i = 0; i < 2; i++) {
295 av_buffer_unref(&pic->motion_val_buf[i]);
296 av_buffer_unref(&pic->ref_index_buf[i]);
297 }
298 }
299
300 static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
301 {
302 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
303 const int mb_array_size = s->mb_stride * s->mb_height;
304 const int b8_array_size = s->b8_stride * s->mb_height * 2;
305 int i;
306
307
308 pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2);
309 pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride);
310 pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) *
311 sizeof(uint32_t));
312 if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf)
313 return AVERROR(ENOMEM);
314
315 if (s->encoding) {
316 pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
317 pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t));
318 pic->mb_mean_buf = av_buffer_allocz(mb_array_size);
319 if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf)
320 return AVERROR(ENOMEM);
321 }
322
323 if (s->out_format == FMT_H263 || s->encoding) {
324 int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t);
325 int ref_index_size = 4 * mb_array_size;
326
327 for (i = 0; mv_size && i < 2; i++) {
328 pic->motion_val_buf[i] = av_buffer_allocz(mv_size);
329 pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size);
330 if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i])
331 return AVERROR(ENOMEM);
332 }
333 }
334
335 return 0;
336 }
337
338 static int make_tables_writable(Picture *pic)
339 {
340 int ret, i;
341 #define MAKE_WRITABLE(table) \
342 do {\
343 if (pic->table &&\
344 (ret = av_buffer_make_writable(&pic->table)) < 0)\
345 return ret;\
346 } while (0)
347
348 MAKE_WRITABLE(mb_var_buf);
349 MAKE_WRITABLE(mc_mb_var_buf);
350 MAKE_WRITABLE(mb_mean_buf);
351 MAKE_WRITABLE(mbskip_table_buf);
352 MAKE_WRITABLE(qscale_table_buf);
353 MAKE_WRITABLE(mb_type_buf);
354
355 for (i = 0; i < 2; i++) {
356 MAKE_WRITABLE(motion_val_buf[i]);
357 MAKE_WRITABLE(ref_index_buf[i]);
358 }
359
360 return 0;
361 }
362
363 /**
364 * Allocate a Picture.
365 * The pixels are allocated/set by calling get_buffer() if shared = 0
366 */
367 int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
368 {
369 int i, ret;
370
371 if (shared) {
372 assert(pic->f.data[0]);
373 pic->shared = 1;
374 } else {
375 assert(!pic->f.buf[0]);
376
377 if (alloc_frame_buffer(s, pic) < 0)
378 return -1;
379
380 s->linesize = pic->f.linesize[0];
381 s->uvlinesize = pic->f.linesize[1];
382 }
383
384 if (!pic->qscale_table_buf)
385 ret = alloc_picture_tables(s, pic);
386 else
387 ret = make_tables_writable(pic);
388 if (ret < 0)
389 goto fail;
390
391 if (s->encoding) {
392 pic->mb_var = (uint16_t*)pic->mb_var_buf->data;
393 pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data;
394 pic->mb_mean = pic->mb_mean_buf->data;
395 }
396
397 pic->mbskip_table = pic->mbskip_table_buf->data;
398 pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1;
399 pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1;
400
401 if (pic->motion_val_buf[0]) {
402 for (i = 0; i < 2; i++) {
403 pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4;
404 pic->ref_index[i] = pic->ref_index_buf[i]->data;
405 }
406 }
407
408 return 0;
409 fail:
410 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
411 ff_mpeg_unref_picture(s, pic);
412 ff_free_picture_tables(pic);
413 return AVERROR(ENOMEM);
414 }
415
416 /**
417 * Deallocate a picture.
418 */
419 void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
420 {
421 int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean);
422
423 pic->tf.f = &pic->f;
424 /* WM Image / Screen codecs allocate internal buffers with different
425 * dimensions / colorspaces; ignore user-defined callbacks for these. */
426 if (s->codec_id != AV_CODEC_ID_WMV3IMAGE &&
427 s->codec_id != AV_CODEC_ID_VC1IMAGE &&
428 s->codec_id != AV_CODEC_ID_MSS2)
429 ff_thread_release_buffer(s->avctx, &pic->tf);
430 else
431 av_frame_unref(&pic->f);
432
433 av_buffer_unref(&pic->hwaccel_priv_buf);
434
435 if (pic->needs_realloc)
436 ff_free_picture_tables(pic);
437
438 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
439 }
440
441 static int update_picture_tables(Picture *dst, Picture *src)
442 {
443 int i;
444
445 #define UPDATE_TABLE(table)\
446 do {\
447 if (src->table &&\
448 (!dst->table || dst->table->buffer != src->table->buffer)) {\
449 av_buffer_unref(&dst->table);\
450 dst->table = av_buffer_ref(src->table);\
451 if (!dst->table) {\
452 ff_free_picture_tables(dst);\
453 return AVERROR(ENOMEM);\
454 }\
455 }\
456 } while (0)
457
458 UPDATE_TABLE(mb_var_buf);
459 UPDATE_TABLE(mc_mb_var_buf);
460 UPDATE_TABLE(mb_mean_buf);
461 UPDATE_TABLE(mbskip_table_buf);
462 UPDATE_TABLE(qscale_table_buf);
463 UPDATE_TABLE(mb_type_buf);
464 for (i = 0; i < 2; i++) {
465 UPDATE_TABLE(motion_val_buf[i]);
466 UPDATE_TABLE(ref_index_buf[i]);
467 }
468
469 dst->mb_var = src->mb_var;
470 dst->mc_mb_var = src->mc_mb_var;
471 dst->mb_mean = src->mb_mean;
472 dst->mbskip_table = src->mbskip_table;
473 dst->qscale_table = src->qscale_table;
474 dst->mb_type = src->mb_type;
475 for (i = 0; i < 2; i++) {
476 dst->motion_val[i] = src->motion_val[i];
477 dst->ref_index[i] = src->ref_index[i];
478 }
479
480 return 0;
481 }
482
483 int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src)
484 {
485 int ret;
486
487 av_assert0(!dst->f.buf[0]);
488 av_assert0(src->f.buf[0]);
489
490 src->tf.f = &src->f;
491 dst->tf.f = &dst->f;
492 ret = ff_thread_ref_frame(&dst->tf, &src->tf);
493 if (ret < 0)
494 goto fail;
495
496 ret = update_picture_tables(dst, src);
497 if (ret < 0)
498 goto fail;
499
500 if (src->hwaccel_picture_private) {
501 dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf);
502 if (!dst->hwaccel_priv_buf)
503 goto fail;
504 dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data;
505 }
506
507 dst->field_picture = src->field_picture;
508 dst->mb_var_sum = src->mb_var_sum;
509 dst->mc_mb_var_sum = src->mc_mb_var_sum;
510 dst->b_frame_score = src->b_frame_score;
511 dst->needs_realloc = src->needs_realloc;
512 dst->reference = src->reference;
513 dst->shared = src->shared;
514
515 return 0;
516 fail:
517 ff_mpeg_unref_picture(s, dst);
518 return ret;
519 }
520
521 static void exchange_uv(MpegEncContext *s)
522 {
523 int16_t (*tmp)[64];
524
525 tmp = s->pblocks[4];
526 s->pblocks[4] = s->pblocks[5];
527 s->pblocks[5] = tmp;
528 }
529
530 static int init_duplicate_context(MpegEncContext *s)
531 {
532 int y_size = s->b8_stride * (2 * s->mb_height + 1);
533 int c_size = s->mb_stride * (s->mb_height + 1);
534 int yc_size = y_size + 2 * c_size;
535 int i;
536
537 s->edge_emu_buffer =
538 s->me.scratchpad =
539 s->me.temp =
540 s->rd_scratchpad =
541 s->b_scratchpad =
542 s->obmc_scratchpad = NULL;
543
544 if (s->encoding) {
545 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map,
546 ME_MAP_SIZE * sizeof(uint32_t), fail)
547 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map,
548 ME_MAP_SIZE * sizeof(uint32_t), fail)
549 if (s->avctx->noise_reduction) {
550 FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum,
551 2 * 64 * sizeof(int), fail)
552 }
553 }
554 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
555 s->block = s->blocks[0];
556
557 for (i = 0; i < 12; i++) {
558 s->pblocks[i] = &s->block[i];
559 }
560 if (s->avctx->codec_tag == AV_RL32("VCR2"))
561 exchange_uv(s);
562
563 if (s->out_format == FMT_H263) {
564 /* ac values */
565 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
566 yc_size * sizeof(int16_t) * 16, fail);
567 s->ac_val[0] = s->ac_val_base + s->b8_stride + 1;
568 s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1;
569 s->ac_val[2] = s->ac_val[1] + c_size;
570 }
571
572 return 0;
573 fail:
574 return -1; // free() through ff_MPV_common_end()
575 }
576
577 static void free_duplicate_context(MpegEncContext *s)
578 {
579 if (s == NULL)
580 return;
581
582 av_freep(&s->edge_emu_buffer);
583 av_freep(&s->me.scratchpad);
584 s->me.temp =
585 s->rd_scratchpad =
586 s->b_scratchpad =
587 s->obmc_scratchpad = NULL;
588
589 av_freep(&s->dct_error_sum);
590 av_freep(&s->me.map);
591 av_freep(&s->me.score_map);
592 av_freep(&s->blocks);
593 av_freep(&s->ac_val_base);
594 s->block = NULL;
595 }
596
597 static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
598 {
599 #define COPY(a) bak->a = src->a
600 COPY(edge_emu_buffer);
601 COPY(me.scratchpad);
602 COPY(me.temp);
603 COPY(rd_scratchpad);
604 COPY(b_scratchpad);
605 COPY(obmc_scratchpad);
606 COPY(me.map);
607 COPY(me.score_map);
608 COPY(blocks);
609 COPY(block);
610 COPY(start_mb_y);
611 COPY(end_mb_y);
612 COPY(me.map_generation);
613 COPY(pb);
614 COPY(dct_error_sum);
615 COPY(dct_count[0]);
616 COPY(dct_count[1]);
617 COPY(ac_val_base);
618 COPY(ac_val[0]);
619 COPY(ac_val[1]);
620 COPY(ac_val[2]);
621 #undef COPY
622 }
623
624 int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
625 {
626 MpegEncContext bak;
627 int i, ret;
628 // FIXME copy only needed parts
629 // START_TIMER
630 backup_duplicate_context(&bak, dst);
631 memcpy(dst, src, sizeof(MpegEncContext));
632 backup_duplicate_context(dst, &bak);
633 for (i = 0; i < 12; i++) {
634 dst->pblocks[i] = &dst->block[i];
635 }
636 if (dst->avctx->codec_tag == AV_RL32("VCR2"))
637 exchange_uv(dst);
638 if (!dst->edge_emu_buffer &&
639 (ret = ff_mpv_frame_size_alloc(dst, dst->linesize)) < 0) {
640 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
641 "scratch buffers.\n");
642 return ret;
643 }
644 // STOP_TIMER("update_duplicate_context")
645 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
646 return 0;
647 }
648
649 int ff_mpeg_update_thread_context(AVCodecContext *dst,
650 const AVCodecContext *src)
651 {
652 int i, ret;
653 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
654
655 if (dst == src || !s1->context_initialized)
656 return 0;
657
658 // FIXME can parameters change on I-frames?
659 // in that case dst may need a reinit
660 if (!s->context_initialized) {
661 memcpy(s, s1, sizeof(MpegEncContext));
662
663 s->avctx = dst;
664 s->bitstream_buffer = NULL;
665 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
666
667 ff_MPV_common_init(s);
668 }
669
670 if (s->height != s1->height || s->width != s1->width || s->context_reinit) {
671 int err;
672 s->context_reinit = 0;
673 s->height = s1->height;
674 s->width = s1->width;
675 if ((err = ff_MPV_common_frame_size_change(s)) < 0)
676 return err;
677 }
678
679 s->avctx->coded_height = s1->avctx->coded_height;
680 s->avctx->coded_width = s1->avctx->coded_width;
681 s->avctx->width = s1->avctx->width;
682 s->avctx->height = s1->avctx->height;
683
684 s->coded_picture_number = s1->coded_picture_number;
685 s->picture_number = s1->picture_number;
686
687 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
688 ff_mpeg_unref_picture(s, &s->picture[i]);
689 if (s1->picture[i].f.buf[0] &&
690 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
691 return ret;
692 }
693
694 #define UPDATE_PICTURE(pic)\
695 do {\
696 ff_mpeg_unref_picture(s, &s->pic);\
697 if (s1->pic.f.buf[0])\
698 ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\
699 else\
700 ret = update_picture_tables(&s->pic, &s1->pic);\
701 if (ret < 0)\
702 return ret;\
703 } while (0)
704
705 UPDATE_PICTURE(current_picture);
706 UPDATE_PICTURE(last_picture);
707 UPDATE_PICTURE(next_picture);
708
709 s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1);
710 s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1);
711 s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1);
712
713 // Error/bug resilience
714 s->next_p_frame_damaged = s1->next_p_frame_damaged;
715 s->workaround_bugs = s1->workaround_bugs;
716
717 // MPEG4 timing info
718 memcpy(&s->last_time_base, &s1->last_time_base,
719 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
720 (char *) &s1->last_time_base);
721
722 // B-frame info
723 s->max_b_frames = s1->max_b_frames;
724 s->low_delay = s1->low_delay;
725 s->droppable = s1->droppable;
726
727 // DivX handling (doesn't work)
728 s->divx_packed = s1->divx_packed;
729
730 if (s1->bitstream_buffer) {
731 if (s1->bitstream_buffer_size +
732 FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size)
733 av_fast_malloc(&s->bitstream_buffer,
734 &s->allocated_bitstream_buffer_size,
735 s1->allocated_bitstream_buffer_size);
736 s->bitstream_buffer_size = s1->bitstream_buffer_size;
737 memcpy(s->bitstream_buffer, s1->bitstream_buffer,
738 s1->bitstream_buffer_size);
739 memset(s->bitstream_buffer + s->bitstream_buffer_size, 0,
740 FF_INPUT_BUFFER_PADDING_SIZE);
741 }
742
743 // linesize dependend scratch buffer allocation
744 if (!s->edge_emu_buffer)
745 if (s1->linesize) {
746 if (ff_mpv_frame_size_alloc(s, s1->linesize) < 0) {
747 av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context "
748 "scratch buffers.\n");
749 return AVERROR(ENOMEM);
750 }
751 } else {
752 av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not "
753 "be allocated due to unknown size.\n");
754 return AVERROR_BUG;
755 }
756
757 // MPEG2/interlacing info
758 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
759 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
760
761 if (!s1->first_field) {
762 s->last_pict_type = s1->pict_type;
763 if (s1->current_picture_ptr)
764 s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f.quality;
765 }
766
767 return 0;
768 }
769
770 /**
771 * Set the given MpegEncContext to common defaults
772 * (same for encoding and decoding).
773 * The changed fields will not depend upon the
774 * prior state of the MpegEncContext.
775 */
776 void ff_MPV_common_defaults(MpegEncContext *s)
777 {
778 s->y_dc_scale_table =
779 s->c_dc_scale_table = ff_mpeg1_dc_scale_table;
780 s->chroma_qscale_table = ff_default_chroma_qscale_table;
781 s->progressive_frame = 1;
782 s->progressive_sequence = 1;
783 s->picture_structure = PICT_FRAME;
784
785 s->coded_picture_number = 0;
786 s->picture_number = 0;
787
788 s->f_code = 1;
789 s->b_code = 1;
790
791 s->slice_context_count = 1;
792 }
793
794 /**
795 * Set the given MpegEncContext to defaults for decoding.
796 * the changed fields will not depend upon
797 * the prior state of the MpegEncContext.
798 */
799 void ff_MPV_decode_defaults(MpegEncContext *s)
800 {
801 ff_MPV_common_defaults(s);
802 }
803
804 static int init_er(MpegEncContext *s)
805 {
806 ERContext *er = &s->er;
807 int mb_array_size = s->mb_height * s->mb_stride;
808 int i;
809
810 er->avctx = s->avctx;
811 er->dsp = &s->dsp;
812
813 er->mb_index2xy = s->mb_index2xy;
814 er->mb_num = s->mb_num;
815 er->mb_width = s->mb_width;
816 er->mb_height = s->mb_height;
817 er->mb_stride = s->mb_stride;
818 er->b8_stride = s->b8_stride;
819
820 er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride);
821 er->error_status_table = av_mallocz(mb_array_size);
822 if (!er->er_temp_buffer || !er->error_status_table)
823 goto fail;
824
825 er->mbskip_table = s->mbskip_table;
826 er->mbintra_table = s->mbintra_table;
827
828 for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++)
829 er->dc_val[i] = s->dc_val[i];
830
831 er->decode_mb = mpeg_er_decode_mb;
832 er->opaque = s;
833
834 return 0;
835 fail:
836 av_freep(&er->er_temp_buffer);
837 av_freep(&er->error_status_table);
838 return AVERROR(ENOMEM);
839 }
840
841 /**
842 * Initialize and allocates MpegEncContext fields dependent on the resolution.
843 */
844 static int init_context_frame(MpegEncContext *s)
845 {
846 int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y;
847
848 s->mb_width = (s->width + 15) / 16;
849 s->mb_stride = s->mb_width + 1;
850 s->b8_stride = s->mb_width * 2 + 1;
851 s->b4_stride = s->mb_width * 4 + 1;
852 mb_array_size = s->mb_height * s->mb_stride;
853 mv_table_size = (s->mb_height + 2) * s->mb_stride + 1;
854
855 /* set default edge pos, will be overriden
856 * in decode_header if needed */
857 s->h_edge_pos = s->mb_width * 16;
858 s->v_edge_pos = s->mb_height * 16;
859
860 s->mb_num = s->mb_width * s->mb_height;
861
862 s->block_wrap[0] =
863 s->block_wrap[1] =
864 s->block_wrap[2] =
865 s->block_wrap[3] = s->b8_stride;
866 s->block_wrap[4] =
867 s->block_wrap[5] = s->mb_stride;
868
869 y_size = s->b8_stride * (2 * s->mb_height + 1);
870 c_size = s->mb_stride * (s->mb_height + 1);
871 yc_size = y_size + 2 * c_size;
872
873 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num + 1) * sizeof(int),
874 fail); // error ressilience code looks cleaner with this
875 for (y = 0; y < s->mb_height; y++)
876 for (x = 0; x < s->mb_width; x++)
877 s->mb_index2xy[x + y * s->mb_width] = x + y * s->mb_stride;
878
879 s->mb_index2xy[s->mb_height * s->mb_width] =
880 (s->mb_height - 1) * s->mb_stride + s->mb_width; // FIXME really needed?
881
882 if (s->encoding) {
883 /* Allocate MV tables */
884 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base,
885 mv_table_size * 2 * sizeof(int16_t), fail);
886 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base,
887 mv_table_size * 2 * sizeof(int16_t), fail);
888 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base,
889 mv_table_size * 2 * sizeof(int16_t), fail);
890 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base,
891 mv_table_size * 2 * sizeof(int16_t), fail);
892 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base,
893 mv_table_size * 2 * sizeof(int16_t), fail);
894 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base,
895 mv_table_size * 2 * sizeof(int16_t), fail);
896 s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1;
897 s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1;
898 s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1;
899 s->b_bidir_forw_mv_table = s->b_bidir_forw_mv_table_base +
900 s->mb_stride + 1;
901 s->b_bidir_back_mv_table = s->b_bidir_back_mv_table_base +
902 s->mb_stride + 1;
903 s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1;
904
905 /* Allocate MB type table */
906 FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type, mb_array_size *
907 sizeof(uint16_t), fail); // needed for encoding
908
909 FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size *
910 sizeof(int), fail);
911
912 FF_ALLOC_OR_GOTO(s->avctx, s->cplx_tab,
913 mb_array_size * sizeof(float), fail);
914 FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab,
915 mb_array_size * sizeof(float), fail);
916
917 }
918
919 if (s->codec_id == AV_CODEC_ID_MPEG4 ||
920 (s->flags & CODEC_FLAG_INTERLACED_ME)) {
921 /* interlaced direct mode decoding tables */
922 for (i = 0; i < 2; i++) {
923 int j, k;
924 for (j = 0; j < 2; j++) {
925 for (k = 0; k < 2; k++) {
926 FF_ALLOCZ_OR_GOTO(s->avctx,
927 s->b_field_mv_table_base[i][j][k],
928 mv_table_size * 2 * sizeof(int16_t),
929 fail);
930 s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] +
931 s->mb_stride + 1;
932 }
933 FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j],
934 mb_array_size * 2 * sizeof(uint8_t), fail);
935 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j],
936 mv_table_size * 2 * sizeof(int16_t), fail);
937 s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j]
938 + s->mb_stride + 1;
939 }
940 FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i],
941 mb_array_size * 2 * sizeof(uint8_t), fail);
942 }
943 }
944 if (s->out_format == FMT_H263) {
945 /* cbp values */
946 FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail);
947 s->coded_block = s->coded_block_base + s->b8_stride + 1;
948
949 /* cbp, ac_pred, pred_dir */
950 FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table,
951 mb_array_size * sizeof(uint8_t), fail);
952 FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table,
953 mb_array_size * sizeof(uint8_t), fail);
954 }
955
956 if (s->h263_pred || s->h263_plus || !s->encoding) {
957 /* dc values */
958 // MN: we need these for error resilience of intra-frames
959 FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base,
960 yc_size * sizeof(int16_t), fail);
961 s->dc_val[0] = s->dc_val_base + s->b8_stride + 1;
962 s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1;
963 s->dc_val[2] = s->dc_val[1] + c_size;
964 for (i = 0; i < yc_size; i++)
965 s->dc_val_base[i] = 1024;
966 }
967
968 /* which mb is a intra block */
969 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail);
970 memset(s->mbintra_table, 1, mb_array_size);
971
972 /* init macroblock skip table */
973 FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size + 2, fail);
974 // Note the + 1 is for a quicker mpeg4 slice_end detection
975
976 return init_er(s);
977 fail:
978 return AVERROR(ENOMEM);
979 }
980
981 /**
982 * init common structure for both encoder and decoder.
983 * this assumes that some variables like width/height are already set
984 */
985 av_cold int ff_MPV_common_init(MpegEncContext *s)
986 {
987 int i;
988 int nb_slices = (HAVE_THREADS &&
989 s->avctx->active_thread_type & FF_THREAD_SLICE) ?
990 s->avctx->thread_count : 1;
991
992 if (s->encoding && s->avctx->slices)
993 nb_slices = s->avctx->slices;
994
995 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
996 s->mb_height = (s->height + 31) / 32 * 2;
997 else
998 s->mb_height = (s->height + 15) / 16;
999
1000 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
1001 av_log(s->avctx, AV_LOG_ERROR,
1002 "decoding to AV_PIX_FMT_NONE is not supported.\n");
1003 return -1;
1004 }
1005
1006 if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) {
1007 int max_slices;
1008 if (s->mb_height)
1009 max_slices = FFMIN(MAX_THREADS, s->mb_height);
1010 else
1011 max_slices = MAX_THREADS;
1012 av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d),"
1013 " reducing to %d\n", nb_slices, max_slices);
1014 nb_slices = max_slices;
1015 }
1016
1017 if ((s->width || s->height) &&
1018 av_image_check_size(s->width, s->height, 0, s->avctx))
1019 return -1;
1020
1021 ff_dct_common_init(s);
1022
1023 s->flags = s->avctx->flags;
1024 s->flags2 = s->avctx->flags2;
1025
1026 /* set chroma shifts */
1027 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1028 &s->chroma_x_shift,
1029 &s->chroma_y_shift);
1030
1031 /* convert fourcc to upper case */
1032 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
1033
1034 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
1035
1036 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
1037 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1038 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1039 avcodec_get_frame_defaults(&s->picture[i].f);
1040 }
1041 memset(&s->next_picture, 0, sizeof(s->next_picture));
1042 memset(&s->last_picture, 0, sizeof(s->last_picture));
1043 memset(&s->current_picture, 0, sizeof(s->current_picture));
1044 avcodec_get_frame_defaults(&s->next_picture.f);
1045 avcodec_get_frame_defaults(&s->last_picture.f);
1046 avcodec_get_frame_defaults(&s->current_picture.f);
1047
1048 if (s->width && s->height) {
1049 if (init_context_frame(s))
1050 goto fail;
1051
1052 s->parse_context.state = -1;
1053 }
1054
1055 s->context_initialized = 1;
1056 s->thread_context[0] = s;
1057
1058 if (s->width && s->height) {
1059 if (nb_slices > 1) {
1060 for (i = 1; i < nb_slices; i++) {
1061 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1062 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1063 }
1064
1065 for (i = 0; i < nb_slices; i++) {
1066 if (init_duplicate_context(s->thread_context[i]) < 0)
1067 goto fail;
1068 s->thread_context[i]->start_mb_y =
1069 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1070 s->thread_context[i]->end_mb_y =
1071 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1072 }
1073 } else {
1074 if (init_duplicate_context(s) < 0)
1075 goto fail;
1076 s->start_mb_y = 0;
1077 s->end_mb_y = s->mb_height;
1078 }
1079 s->slice_context_count = nb_slices;
1080 }
1081
1082 return 0;
1083 fail:
1084 ff_MPV_common_end(s);
1085 return -1;
1086 }
1087
1088 /**
1089 * Frees and resets MpegEncContext fields depending on the resolution.
1090 * Is used during resolution changes to avoid a full reinitialization of the
1091 * codec.
1092 */
1093 static int free_context_frame(MpegEncContext *s)
1094 {
1095 int i, j, k;
1096
1097 av_freep(&s->mb_type);
1098 av_freep(&s->p_mv_table_base);
1099 av_freep(&s->b_forw_mv_table_base);
1100 av_freep(&s->b_back_mv_table_base);
1101 av_freep(&s->b_bidir_forw_mv_table_base);
1102 av_freep(&s->b_bidir_back_mv_table_base);
1103 av_freep(&s->b_direct_mv_table_base);
1104 s->p_mv_table = NULL;
1105 s->b_forw_mv_table = NULL;
1106 s->b_back_mv_table = NULL;
1107 s->b_bidir_forw_mv_table = NULL;
1108 s->b_bidir_back_mv_table = NULL;
1109 s->b_direct_mv_table = NULL;
1110 for (i = 0; i < 2; i++) {
1111 for (j = 0; j < 2; j++) {
1112 for (k = 0; k < 2; k++) {
1113 av_freep(&s->b_field_mv_table_base[i][j][k]);
1114 s->b_field_mv_table[i][j][k] = NULL;
1115 }
1116 av_freep(&s->b_field_select_table[i][j]);
1117 av_freep(&s->p_field_mv_table_base[i][j]);
1118 s->p_field_mv_table[i][j] = NULL;
1119 }
1120 av_freep(&s->p_field_select_table[i]);
1121 }
1122
1123 av_freep(&s->dc_val_base);
1124 av_freep(&s->coded_block_base);
1125 av_freep(&s->mbintra_table);
1126 av_freep(&s->cbp_table);
1127 av_freep(&s->pred_dir_table);
1128
1129 av_freep(&s->mbskip_table);
1130
1131 av_freep(&s->er.error_status_table);
1132 av_freep(&s->er.er_temp_buffer);
1133 av_freep(&s->mb_index2xy);
1134 av_freep(&s->lambda_table);
1135 av_freep(&s->cplx_tab);
1136 av_freep(&s->bits_tab);
1137
1138 s->linesize = s->uvlinesize = 0;
1139
1140 return 0;
1141 }
1142
1143 int ff_MPV_common_frame_size_change(MpegEncContext *s)
1144 {
1145 int i, err = 0;
1146
1147 if (s->slice_context_count > 1) {
1148 for (i = 0; i < s->slice_context_count; i++) {
1149 free_duplicate_context(s->thread_context[i]);
1150 }
1151 for (i = 1; i < s->slice_context_count; i++) {
1152 av_freep(&s->thread_context[i]);
1153 }
1154 } else
1155 free_duplicate_context(s);
1156
1157 if ((err = free_context_frame(s)) < 0)
1158 return err;
1159
1160 if (s->picture)
1161 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1162 s->picture[i].needs_realloc = 1;
1163 }
1164
1165 s->last_picture_ptr =
1166 s->next_picture_ptr =
1167 s->current_picture_ptr = NULL;
1168
1169 // init
1170 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
1171 s->mb_height = (s->height + 31) / 32 * 2;
1172 else
1173 s->mb_height = (s->height + 15) / 16;
1174
1175 if ((s->width || s->height) &&
1176 av_image_check_size(s->width, s->height, 0, s->avctx))
1177 return AVERROR_INVALIDDATA;
1178
1179 if ((err = init_context_frame(s)))
1180 goto fail;
1181
1182 s->thread_context[0] = s;
1183
1184 if (s->width && s->height) {
1185 int nb_slices = s->slice_context_count;
1186 if (nb_slices > 1) {
1187 for (i = 1; i < nb_slices; i++) {
1188 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1189 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1190 }
1191
1192 for (i = 0; i < nb_slices; i++) {
1193 if (init_duplicate_context(s->thread_context[i]) < 0)
1194 goto fail;
1195 s->thread_context[i]->start_mb_y =
1196 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
1197 s->thread_context[i]->end_mb_y =
1198 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
1199 }
1200 } else {
1201 if (init_duplicate_context(s) < 0)
1202 goto fail;
1203 s->start_mb_y = 0;
1204 s->end_mb_y = s->mb_height;
1205 }
1206 s->slice_context_count = nb_slices;
1207 }
1208
1209 return 0;
1210 fail:
1211 ff_MPV_common_end(s);
1212 return err;
1213 }
1214
1215 /* init common structure for both encoder and decoder */
1216 void ff_MPV_common_end(MpegEncContext *s)
1217 {
1218 int i;
1219
1220 if (s->slice_context_count > 1) {
1221 for (i = 0; i < s->slice_context_count; i++) {
1222 free_duplicate_context(s->thread_context[i]);
1223 }
1224 for (i = 1; i < s->slice_context_count; i++) {
1225 av_freep(&s->thread_context[i]);
1226 }
1227 s->slice_context_count = 1;
1228 } else free_duplicate_context(s);
1229
1230 av_freep(&s->parse_context.buffer);
1231 s->parse_context.buffer_size = 0;
1232
1233 av_freep(&s->bitstream_buffer);
1234 s->allocated_bitstream_buffer_size = 0;
1235
1236 if (s->picture) {
1237 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1238 ff_free_picture_tables(&s->picture[i]);
1239 ff_mpeg_unref_picture(s, &s->picture[i]);
1240 }
1241 }
1242 av_freep(&s->picture);
1243 ff_free_picture_tables(&s->last_picture);
1244 ff_mpeg_unref_picture(s, &s->last_picture);
1245 ff_free_picture_tables(&s->current_picture);
1246 ff_mpeg_unref_picture(s, &s->current_picture);
1247 ff_free_picture_tables(&s->next_picture);
1248 ff_mpeg_unref_picture(s, &s->next_picture);
1249
1250 free_context_frame(s);
1251
1252 s->context_initialized = 0;
1253 s->last_picture_ptr =
1254 s->next_picture_ptr =
1255 s->current_picture_ptr = NULL;
1256 s->linesize = s->uvlinesize = 0;
1257 }
1258
1259 av_cold void ff_init_rl(RLTable *rl,
1260 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1261 {
1262 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1263 uint8_t index_run[MAX_RUN + 1];
1264 int last, run, level, start, end, i;
1265
1266 /* If table is static, we can quit if rl->max_level[0] is not NULL */
1267 if (static_store && rl->max_level[0])
1268 return;
1269
1270 /* compute max_level[], max_run[] and index_run[] */
1271 for (last = 0; last < 2; last++) {
1272 if (last == 0) {
1273 start = 0;
1274 end = rl->last;
1275 } else {
1276 start = rl->last;
1277 end = rl->n;
1278 }
1279
1280 memset(max_level, 0, MAX_RUN + 1);
1281 memset(max_run, 0, MAX_LEVEL + 1);
1282 memset(index_run, rl->n, MAX_RUN + 1);
1283 for (i = start; i < end; i++) {
1284 run = rl->table_run[i];
1285 level = rl->table_level[i];
1286 if (index_run[run] == rl->n)
1287 index_run[run] = i;
1288 if (level > max_level[run])
1289 max_level[run] = level;
1290 if (run > max_run[level])
1291 max_run[level] = run;
1292 }
1293 if (static_store)
1294 rl->max_level[last] = static_store[last];
1295 else
1296 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1297 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
1298 if (static_store)
1299 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
1300 else
1301 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1302 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
1303 if (static_store)
1304 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
1305 else
1306 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1307 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1308 }
1309 }
1310
1311 av_cold void ff_init_vlc_rl(RLTable *rl)
1312 {
1313 int i, q;
1314
1315 for (q = 0; q < 32; q++) {
1316 int qmul = q * 2;
1317 int qadd = (q - 1) | 1;
1318
1319 if (q == 0) {
1320 qmul = 1;
1321 qadd = 0;
1322 }
1323 for (i = 0; i < rl->vlc.table_size; i++) {
1324 int code = rl->vlc.table[i][0];
1325 int len = rl->vlc.table[i][1];
1326 int level, run;
1327
1328 if (len == 0) { // illegal code
1329 run = 66;
1330 level = MAX_LEVEL;
1331 } else if (len < 0) { // more bits needed
1332 run = 0;
1333 level = code;
1334 } else {
1335 if (code == rl->n) { // esc
1336 run = 66;
1337 level = 0;
1338 } else {
1339 run = rl->table_run[code] + 1;
1340 level = rl->table_level[code] * qmul + qadd;
1341 if (code >= rl->last) run += 192;
1342 }
1343 }
1344 rl->rl_vlc[q][i].len = len;
1345 rl->rl_vlc[q][i].level = level;
1346 rl->rl_vlc[q][i].run = run;
1347 }
1348 }
1349 }
1350
1351 void ff_release_unused_pictures(MpegEncContext*s, int remove_current)
1352 {
1353 int i;
1354
1355 /* release non reference frames */
1356 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1357 if (!s->picture[i].reference &&
1358 (remove_current || &s->picture[i] != s->current_picture_ptr)) {
1359 ff_mpeg_unref_picture(s, &s->picture[i]);
1360 }
1361 }
1362 }
1363
1364 static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1365 {
1366 if (pic->f.buf[0] == NULL)
1367 return 1;
1368 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1369 return 1;
1370 return 0;
1371 }
1372
1373 static int find_unused_picture(MpegEncContext *s, int shared)
1374 {
1375 int i;
1376
1377 if (shared) {
1378 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1379 if (s->picture[i].f.buf[0] == NULL)
1380 return i;
1381 }
1382 } else {
1383 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1384 if (pic_is_unused(s, &s->picture[i]))
1385 return i;
1386 }
1387 }
1388
1389 return AVERROR_INVALIDDATA;
1390 }
1391
1392 int ff_find_unused_picture(MpegEncContext *s, int shared)
1393 {
1394 int ret = find_unused_picture(s, shared);
1395
1396 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
1397 if (s->picture[ret].needs_realloc) {
1398 s->picture[ret].needs_realloc = 0;
1399 ff_free_picture_tables(&s->picture[ret]);
1400 ff_mpeg_unref_picture(s, &s->picture[ret]);
1401 avcodec_get_frame_defaults(&s->picture[ret].f);
1402 }
1403 }
1404 return ret;
1405 }
1406
1407 static void update_noise_reduction(MpegEncContext *s)
1408 {
1409 int intra, i;
1410
1411 for (intra = 0; intra < 2; intra++) {
1412 if (s->dct_count[intra] > (1 << 16)) {
1413 for (i = 0; i < 64; i++) {
1414 s->dct_error_sum[intra][i] >>= 1;
1415 }
1416 s->dct_count[intra] >>= 1;
1417 }
1418
1419 for (i = 0; i < 64; i++) {
1420 s->dct_offset[intra][i] = (s->avctx->noise_reduction *
1421 s->dct_count[intra] +
1422 s->dct_error_sum[intra][i] / 2) /
1423 (s->dct_error_sum[intra][i] + 1);
1424 }
1425 }
1426 }
1427
1428 /**
1429 * generic function for encode/decode called after coding/decoding
1430 * the header and before a frame is coded/decoded.
1431 */
1432 int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
1433 {
1434 int i, ret;
1435 Picture *pic;
1436 s->mb_skipped = 0;
1437
1438 /* mark & release old frames */
1439 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1440 s->last_picture_ptr != s->next_picture_ptr &&
1441 s->last_picture_ptr->f.buf[0]) {
1442 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1443 }
1444
1445 /* release forgotten pictures */
1446 /* if (mpeg124/h263) */
1447 if (!s->encoding) {
1448 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1449 if (&s->picture[i] != s->last_picture_ptr &&
1450 &s->picture[i] != s->next_picture_ptr &&
1451 s->picture[i].reference && !s->picture[i].needs_realloc) {
1452 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1453 av_log(avctx, AV_LOG_ERROR,
1454 "releasing zombie picture\n");
1455 ff_mpeg_unref_picture(s, &s->picture[i]);
1456 }
1457 }
1458 }
1459
1460 ff_mpeg_unref_picture(s, &s->current_picture);
1461
1462 if (!s->encoding) {
1463 ff_release_unused_pictures(s, 1);
1464
1465 if (s->current_picture_ptr &&
1466 s->current_picture_ptr->f.buf[0] == NULL) {
1467 // we already have a unused image
1468 // (maybe it was set before reading the header)
1469 pic = s->current_picture_ptr;
1470 } else {
1471 i = ff_find_unused_picture(s, 0);
1472 if (i < 0) {
1473 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1474 return i;
1475 }
1476 pic = &s->picture[i];
1477 }
1478
1479 pic->reference = 0;
1480 if (!s->droppable) {
1481 if (s->pict_type != AV_PICTURE_TYPE_B)
1482 pic->reference = 3;
1483 }
1484
1485 pic->f.coded_picture_number = s->coded_picture_number++;
1486
1487 if (ff_alloc_picture(s, pic, 0) < 0)
1488 return -1;
1489
1490 s->current_picture_ptr = pic;
1491 // FIXME use only the vars from current_pic
1492 s->current_picture_ptr->f.top_field_first = s->top_field_first;
1493 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1494 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1495 if (s->picture_structure != PICT_FRAME)
1496 s->current_picture_ptr->f.top_field_first =
1497 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1498 }
1499 s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame &&
1500 !s->progressive_sequence;
1501 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
1502 }
1503
1504 s->current_picture_ptr->f.pict_type = s->pict_type;
1505 // if (s->flags && CODEC_FLAG_QSCALE)
1506 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
1507 s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
1508
1509 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1510 s->current_picture_ptr)) < 0)
1511 return ret;
1512
1513 if (s->pict_type != AV_PICTURE_TYPE_B) {
1514 s->last_picture_ptr = s->next_picture_ptr;
1515 if (!s->droppable)
1516 s->next_picture_ptr = s->current_picture_ptr;
1517 }
1518 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1519 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1520 s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL,
1521 s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL,
1522 s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL,
1523 s->pict_type, s->droppable);
1524
1525 if ((s->last_picture_ptr == NULL ||
1526 s->last_picture_ptr->f.buf[0] == NULL) &&
1527 (s->pict_type != AV_PICTURE_TYPE_I ||
1528 s->picture_structure != PICT_FRAME)) {
1529 int h_chroma_shift, v_chroma_shift;
1530 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1531 &h_chroma_shift, &v_chroma_shift);
1532 if (s->pict_type != AV_PICTURE_TYPE_I)
1533 av_log(avctx, AV_LOG_ERROR,
1534 "warning: first frame is no keyframe\n");
1535 else if (s->picture_structure != PICT_FRAME)
1536 av_log(avctx, AV_LOG_INFO,
1537 "allocate dummy last picture for field based first keyframe\n");
1538
1539 /* Allocate a dummy frame */
1540 i = ff_find_unused_picture(s, 0);
1541 if (i < 0) {
1542 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1543 return i;
1544 }
1545 s->last_picture_ptr = &s->picture[i];
1546 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1547 s->last_picture_ptr = NULL;
1548 return -1;
1549 }
1550
1551 memset(s->last_picture_ptr->f.data[0], 0,
1552 avctx->height * s->last_picture_ptr->f.linesize[0]);
1553 memset(s->last_picture_ptr->f.data[1], 0x80,
1554 (avctx->height >> v_chroma_shift) *
1555 s->last_picture_ptr->f.linesize[1]);
1556 memset(s->last_picture_ptr->f.data[2], 0x80,
1557 (avctx->height >> v_chroma_shift) *
1558 s->last_picture_ptr->f.linesize[2]);
1559
1560 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1561 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1562 }
1563 if ((s->next_picture_ptr == NULL ||
1564 s->next_picture_ptr->f.buf[0] == NULL) &&
1565 s->pict_type == AV_PICTURE_TYPE_B) {
1566 /* Allocate a dummy frame */
1567 i = ff_find_unused_picture(s, 0);
1568 if (i < 0) {
1569 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1570 return i;
1571 }
1572 s->next_picture_ptr = &s->picture[i];
1573 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1574 s->next_picture_ptr = NULL;
1575 return -1;
1576 }
1577 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1578 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1579 }
1580
1581 if (s->last_picture_ptr) {
1582 ff_mpeg_unref_picture(s, &s->last_picture);
1583 if (s->last_picture_ptr->f.buf[0] &&
1584 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1585 s->last_picture_ptr)) < 0)
1586 return ret;
1587 }
1588 if (s->next_picture_ptr) {
1589 ff_mpeg_unref_picture(s, &s->next_picture);
1590 if (s->next_picture_ptr->f.buf[0] &&
1591 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1592 s->next_picture_ptr)) < 0)
1593 return ret;
1594 }
1595
1596 if (s->pict_type != AV_PICTURE_TYPE_I &&
1597 !(s->last_picture_ptr && s->last_picture_ptr->f.buf[0])) {
1598 av_log(s, AV_LOG_ERROR,
1599 "Non-reference picture received and no reference available\n");
1600 return AVERROR_INVALIDDATA;
1601 }
1602
1603 if (s->picture_structure!= PICT_FRAME) {
1604 int i;
1605 for (i = 0; i < 4; i++) {
1606 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1607 s->current_picture.f.data[i] +=
1608 s->current_picture.f.linesize[i];
1609 }
1610 s->current_picture.f.linesize[i] *= 2;
1611 s->last_picture.f.linesize[i] *= 2;
1612 s->next_picture.f.linesize[i] *= 2;
1613 }
1614 }
1615
1616 s->err_recognition = avctx->err_recognition;
1617
1618 /* set dequantizer, we can't do it during init as
1619 * it might change for mpeg4 and we can't do it in the header
1620 * decode as init is not called for mpeg4 there yet */
1621 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1622 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1623 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
1624 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
1625 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1626 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
1627 } else {
1628 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1629 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1630 }
1631
1632 if (s->dct_error_sum) {
1633 assert(s->avctx->noise_reduction && s->encoding);
1634 update_noise_reduction(s);
1635 }
1636
1637 #if FF_API_XVMC
1638 FF_DISABLE_DEPRECATION_WARNINGS
1639 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
1640 return ff_xvmc_field_start(s, avctx);
1641 FF_ENABLE_DEPRECATION_WARNINGS
1642 #endif /* FF_API_XVMC */
1643
1644 return 0;
1645 }
1646
1647 /* called after a frame has been decoded. */
1648 void ff_MPV_frame_end(MpegEncContext *s)
1649 {
1650 #if FF_API_XVMC
1651 FF_DISABLE_DEPRECATION_WARNINGS
1652 /* redraw edges for the frame if decoding didn't complete */
1653 // just to make sure that all data is rendered.
1654 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) {
1655 ff_xvmc_field_end(s);
1656 } else
1657 FF_ENABLE_DEPRECATION_WARNINGS
1658 #endif /* FF_API_XVMC */
1659 if (s->er.error_count &&
1660 !s->avctx->hwaccel &&
1661 s->unrestricted_mv &&
1662 s->current_picture.reference &&
1663 !s->intra_only &&
1664 !(s->flags & CODEC_FLAG_EMU_EDGE)) {
1665 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1666 int hshift = desc->log2_chroma_w;
1667 int vshift = desc->log2_chroma_h;
1668 s->dsp.draw_edges(s->current_picture.f.data[0], s->linesize,
1669 s->h_edge_pos, s->v_edge_pos,
1670 EDGE_WIDTH, EDGE_WIDTH,
1671 EDGE_TOP | EDGE_BOTTOM);
1672 s->dsp.draw_edges(s->current_picture.f.data[1], s->uvlinesize,
1673 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1674 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1675 EDGE_TOP | EDGE_BOTTOM);
1676 s->dsp.draw_edges(s->current_picture.f.data[2], s->uvlinesize,
1677 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1678 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1679 EDGE_TOP | EDGE_BOTTOM);
1680 }
1681
1682 emms_c();
1683
1684 if (s->current_picture.reference)
1685 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
1686 }
1687
1688 /**
1689 * Print debugging info for the given picture.
1690 */
1691 void ff_print_debug_info(MpegEncContext *s, Picture *p)
1692 {
1693 AVFrame *pict;
1694 if (s->avctx->hwaccel || !p || !p->mb_type)
1695 return;
1696 pict = &p->f;
1697
1698 if (s->avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
1699 int x,y;
1700
1701 av_log(s->avctx,AV_LOG_DEBUG,"New frame, type: ");
1702 switch (pict->pict_type) {
1703 case AV_PICTURE_TYPE_I:
1704 av_log(s->avctx,AV_LOG_DEBUG,"I\n");
1705 break;
1706 case AV_PICTURE_TYPE_P:
1707 av_log(s->avctx,AV_LOG_DEBUG,"P\n");
1708 break;
1709 case AV_PICTURE_TYPE_B:
1710 av_log(s->avctx,AV_LOG_DEBUG,"B\n");
1711 break;
1712 case AV_PICTURE_TYPE_S:
1713 av_log(s->avctx,AV_LOG_DEBUG,"S\n");
1714 break;
1715 case AV_PICTURE_TYPE_SI:
1716 av_log(s->avctx,AV_LOG_DEBUG,"SI\n");
1717 break;
1718 case AV_PICTURE_TYPE_SP:
1719 av_log(s->avctx,AV_LOG_DEBUG,"SP\n");
1720 break;
1721 }
1722 for (y = 0; y < s->mb_height; y++) {
1723 for (x = 0; x < s->mb_width; x++) {
1724 if (s->avctx->debug & FF_DEBUG_SKIP) {
1725 int count = s->mbskip_table[x + y * s->mb_stride];
1726 if (count > 9)
1727 count = 9;
1728 av_log(s->avctx, AV_LOG_DEBUG, "%1d", count);
1729 }
1730 if (s->avctx->debug & FF_DEBUG_QP) {
1731 av_log(s->avctx, AV_LOG_DEBUG, "%2d",
1732 p->qscale_table[x + y * s->mb_stride]);
1733 }
1734 if (s->avctx->debug & FF_DEBUG_MB_TYPE) {
1735 int mb_type = p->mb_type[x + y * s->mb_stride];
1736 // Type & MV direction
1737 if (IS_PCM(mb_type))
1738 av_log(s->avctx, AV_LOG_DEBUG, "P");
1739 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
1740 av_log(s->avctx, AV_LOG_DEBUG, "A");
1741 else if (IS_INTRA4x4(mb_type))
1742 av_log(s->avctx, AV_LOG_DEBUG, "i");
1743 else if (IS_INTRA16x16(mb_type))
1744 av_log(s->avctx, AV_LOG_DEBUG, "I");
1745 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
1746 av_log(s->avctx, AV_LOG_DEBUG, "d");
1747 else if (IS_DIRECT(mb_type))
1748 av_log(s->avctx, AV_LOG_DEBUG, "D");
1749 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
1750 av_log(s->avctx, AV_LOG_DEBUG, "g");
1751 else if (IS_GMC(mb_type))
1752 av_log(s->avctx, AV_LOG_DEBUG, "G");
1753 else if (IS_SKIP(mb_type))
1754 av_log(s->avctx, AV_LOG_DEBUG, "S");
1755 else if (!USES_LIST(mb_type, 1))
1756 av_log(s->avctx, AV_LOG_DEBUG, ">");
1757 else if (!USES_LIST(mb_type, 0))
1758 av_log(s->avctx, AV_LOG_DEBUG, "<");
1759 else {
1760 assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
1761 av_log(s->avctx, AV_LOG_DEBUG, "X");
1762 }
1763
1764 // segmentation
1765 if (IS_8X8(mb_type))
1766 av_log(s->avctx, AV_LOG_DEBUG, "+");
1767 else if (IS_16X8(mb_type))
1768 av_log(s->avctx, AV_LOG_DEBUG, "-");
1769 else if (IS_8X16(mb_type))
1770 av_log(s->avctx, AV_LOG_DEBUG, "|");
1771 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
1772 av_log(s->avctx, AV_LOG_DEBUG, " ");
1773 else
1774 av_log(s->avctx, AV_LOG_DEBUG, "?");
1775
1776
1777 if (IS_INTERLACED(mb_type))
1778 av_log(s->avctx, AV_LOG_DEBUG, "=");
1779 else
1780 av_log(s->avctx, AV_LOG_DEBUG, " ");
1781 }
1782 }
1783 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1784 }
1785 }
1786 }
1787
1788 /**
1789 * find the lowest MB row referenced in the MVs
1790 */
1791 int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
1792 {
1793 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1794 int my, off, i, mvs;
1795
1796 if (s->picture_structure != PICT_FRAME || s->mcsel)
1797 goto unhandled;
1798
1799 switch (s->mv_type) {
1800 case MV_TYPE_16X16:
1801 mvs = 1;
1802 break;
1803 case MV_TYPE_16X8:
1804 mvs = 2;
1805 break;
1806 case MV_TYPE_8X8:
1807 mvs = 4;
1808 break;
1809 default:
1810 goto unhandled;
1811 }
1812
1813 for (i = 0; i < mvs; i++) {
1814 my = s->mv[dir][i][1]<<qpel_shift;
1815 my_max = FFMAX(my_max, my);
1816 my_min = FFMIN(my_min, my);
1817 }
1818
1819 off = (FFMAX(-my_min, my_max) + 63) >> 6;
1820
1821 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
1822 unhandled:
1823 return s->mb_height-1;
1824 }
1825
1826 /* put block[] to dest[] */
1827 static inline void put_dct(MpegEncContext *s,
1828 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1829 {
1830 s->dct_unquantize_intra(s, block, i, qscale);
1831 s->dsp.idct_put (dest, line_size, block);
1832 }
1833
1834 /* add block[] to dest[] */
1835 static inline void add_dct(MpegEncContext *s,
1836 int16_t *block, int i, uint8_t *dest, int line_size)
1837 {
1838 if (s->block_last_index[i] >= 0) {
1839 s->dsp.idct_add (dest, line_size, block);
1840 }
1841 }
1842
1843 static inline void add_dequant_dct(MpegEncContext *s,
1844 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
1845 {
1846 if (s->block_last_index[i] >= 0) {
1847 s->dct_unquantize_inter(s, block, i, qscale);
1848
1849 s->dsp.idct_add (dest, line_size, block);
1850 }
1851 }
1852
1853 /**
1854 * Clean dc, ac, coded_block for the current non-intra MB.
1855 */
1856 void ff_clean_intra_table_entries(MpegEncContext *s)
1857 {
1858 int wrap = s->b8_stride;
1859 int xy = s->block_index[0];
1860
1861 s->dc_val[0][xy ] =
1862 s->dc_val[0][xy + 1 ] =
1863 s->dc_val[0][xy + wrap] =
1864 s->dc_val[0][xy + 1 + wrap] = 1024;
1865 /* ac pred */
1866 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1867 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
1868 if (s->msmpeg4_version>=3) {
1869 s->coded_block[xy ] =
1870 s->coded_block[xy + 1 ] =
1871 s->coded_block[xy + wrap] =
1872 s->coded_block[xy + 1 + wrap] = 0;
1873 }
1874 /* chroma */
1875 wrap = s->mb_stride;
1876 xy = s->mb_x + s->mb_y * wrap;
1877 s->dc_val[1][xy] =
1878 s->dc_val[2][xy] = 1024;
1879 /* ac pred */
1880 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1881 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
1882
1883 s->mbintra_table[xy]= 0;
1884 }
1885
1886 /* generic function called after a macroblock has been parsed by the
1887 decoder or after it has been encoded by the encoder.
1888
1889 Important variables used:
1890 s->mb_intra : true if intra macroblock
1891 s->mv_dir : motion vector direction
1892 s->mv_type : motion vector type
1893 s->mv : motion vector
1894 s->interlaced_dct : true if interlaced dct used (mpeg2)
1895 */
1896 static av_always_inline
1897 void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
1898 int is_mpeg12)
1899 {
1900 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
1901
1902 #if FF_API_XVMC
1903 FF_DISABLE_DEPRECATION_WARNINGS
1904 if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){
1905 ff_xvmc_decode_mb(s);//xvmc uses pblocks
1906 return;
1907 }
1908 FF_ENABLE_DEPRECATION_WARNINGS
1909 #endif /* FF_API_XVMC */
1910
1911 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
1912 /* print DCT coefficients */
1913 int i,j;
1914 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1915 for(i=0; i<6; i++){
1916 for(j=0; j<64; j++){
1917 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
1918 }
1919 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1920 }
1921 }
1922
1923 s->current_picture.qscale_table[mb_xy] = s->qscale;
1924
1925 /* update DC predictors for P macroblocks */
1926 if (!s->mb_intra) {
1927 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
1928 if(s->mbintra_table[mb_xy])
1929 ff_clean_intra_table_entries(s);
1930 } else {
1931 s->last_dc[0] =
1932 s->last_dc[1] =
1933 s->last_dc[2] = 128 << s->intra_dc_precision;
1934 }
1935 }
1936 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
1937 s->mbintra_table[mb_xy]=1;
1938
1939 if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==AV_PICTURE_TYPE_B) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc
1940 uint8_t *dest_y, *dest_cb, *dest_cr;
1941 int dct_linesize, dct_offset;
1942 op_pixels_func (*op_pix)[4];
1943 qpel_mc_func (*op_qpix)[16];
1944 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
1945 const int uvlinesize = s->current_picture.f.linesize[1];
1946 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band;
1947 const int block_size = 8;
1948
1949 /* avoid copy if macroblock skipped in last frame too */
1950 /* skip only during decoding as we might trash the buffers during encoding a bit */
1951 if(!s->encoding){
1952 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1953
1954 if (s->mb_skipped) {
1955 s->mb_skipped= 0;
1956 assert(s->pict_type!=AV_PICTURE_TYPE_I);
1957 *mbskip_ptr = 1;
1958 } else if(!s->current_picture.reference) {
1959 *mbskip_ptr = 1;
1960 } else{
1961 *mbskip_ptr = 0; /* not skipped */
1962 }
1963 }
1964
1965 dct_linesize = linesize << s->interlaced_dct;
1966 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
1967
1968 if(readable){
1969 dest_y= s->dest[0];
1970 dest_cb= s->dest[1];
1971 dest_cr= s->dest[2];
1972 }else{
1973 dest_y = s->b_scratchpad;
1974 dest_cb= s->b_scratchpad+16*linesize;
1975 dest_cr= s->b_scratchpad+32*linesize;
1976 }
1977
1978 if (!s->mb_intra) {
1979 /* motion handling */
1980 /* decoding or more than one mb_type (MC was already done otherwise) */
1981 if(!s->encoding){
1982
1983 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
1984 if (s->mv_dir & MV_DIR_FORWARD) {
1985 ff_thread_await_progress(&s->last_picture_ptr->tf,
1986 ff_MPV_lowest_referenced_row(s, 0),
1987 0);
1988 }
1989 if (s->mv_dir & MV_DIR_BACKWARD) {
1990 ff_thread_await_progress(&s->next_picture_ptr->tf,
1991 ff_MPV_lowest_referenced_row(s, 1),
1992 0);
1993 }
1994 }
1995
1996 op_qpix= s->me.qpel_put;
1997 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
1998 op_pix = s->hdsp.put_pixels_tab;
1999 }else{
2000 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2001 }
2002 if (s->mv_dir & MV_DIR_FORWARD) {
2003 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
2004 op_pix = s->hdsp.avg_pixels_tab;
2005 op_qpix= s->me.qpel_avg;
2006 }
2007 if (s->mv_dir & MV_DIR_BACKWARD) {
2008 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
2009 }
2010 }
2011
2012 /* skip dequant / idct if we are really late ;) */
2013 if(s->avctx->skip_idct){
2014 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
2015 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
2016 || s->avctx->skip_idct >= AVDISCARD_ALL)
2017 goto skip_idct;
2018 }
2019
2020 /* add dct residue */
2021 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
2022 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
2023 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2024 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2025 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2026 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2027
2028 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2029 if (s->chroma_y_shift){
2030 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2031 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2032 }else{
2033 dct_linesize >>= 1;
2034 dct_offset >>=1;
2035 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2036 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2037 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2038 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2039 }
2040 }
2041 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
2042 add_dct(s, block[0], 0, dest_y , dct_linesize);
2043 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2044 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2045 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
2046
2047 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2048 if(s->chroma_y_shift){//Chroma420
2049 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2050 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2051 }else{
2052 //chroma422
2053 dct_linesize = uvlinesize << s->interlaced_dct;
2054 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;
2055
2056 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2057 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2058 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2059 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2060 if(!s->chroma_x_shift){//Chroma444
2061 add_dct(s, block[8], 8, dest_cb+8, dct_linesize);
2062 add_dct(s, block[9], 9, dest_cr+8, dct_linesize);
2063 add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize);
2064 add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize);
2065 }
2066 }
2067 }//fi gray
2068 }
2069 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
2070 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
2071 }
2072 } else {
2073 /* dct only in intra block */
2074 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
2075 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2076 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2077 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2078 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
2079
2080 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2081 if(s->chroma_y_shift){
2082 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2083 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2084 }else{
2085 dct_offset >>=1;
2086 dct_linesize >>=1;
2087 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2088 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2089 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2090 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2091 }
2092 }
2093 }else{
2094 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2095 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2096 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2097 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
2098
2099 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2100 if(s->chroma_y_shift){
2101 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
2102 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
2103 }else{
2104
2105 dct_linesize = uvlinesize << s->interlaced_dct;
2106 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;
2107
2108 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
2109 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
2110 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2111 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2112 if(!s->chroma_x_shift){//Chroma444
2113 s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]);
2114 s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]);
2115 s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]);
2116 s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]);
2117 }
2118 }
2119 }//gray
2120 }
2121 }
2122 skip_idct:
2123 if(!readable){
2124 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2125 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2126 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
2127 }
2128 }
2129 }
2130
2131 void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
2132 #if !CONFIG_SMALL
2133 if(s->out_format == FMT_MPEG1) {
2134 MPV_decode_mb_internal(s, block, 1);
2135 } else
2136 #endif
2137 MPV_decode_mb_internal(s, block, 0);
2138 }
2139
2140 /**
2141 * @param h is the normal height, this will be reduced automatically if needed for the last row
2142 */
2143 void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
2144 Picture *last, int y, int h, int picture_structure,
2145 int first_field, int draw_edges, int low_delay,
2146 int v_edge_pos, int h_edge_pos)
2147 {
2148 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2149 int hshift = desc->log2_chroma_w;
2150 int vshift = desc->log2_chroma_h;
2151 const int field_pic = picture_structure != PICT_FRAME;
2152 if(field_pic){
2153 h <<= 1;
2154 y <<= 1;
2155 }
2156
2157 if (!avctx->hwaccel &&
2158 draw_edges &&
2159 cur->reference &&
2160 !(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
2161 int *linesize = cur->f.linesize;
2162 int sides = 0, edge_h;
2163 if (y==0) sides |= EDGE_TOP;
2164 if (y + h >= v_edge_pos)
2165 sides |= EDGE_BOTTOM;
2166
2167 edge_h= FFMIN(h, v_edge_pos - y);
2168
2169 dsp->draw_edges(cur->f.data[0] + y * linesize[0],
2170 linesize[0], h_edge_pos, edge_h,
2171 EDGE_WIDTH, EDGE_WIDTH, sides);
2172 dsp->draw_edges(cur->f.data[1] + (y >> vshift) * linesize[1],
2173 linesize[1], h_edge_pos >> hshift, edge_h >> vshift,
2174 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2175 dsp->draw_edges(cur->f.data[2] + (y >> vshift) * linesize[2],
2176 linesize[2], h_edge_pos >> hshift, edge_h >> vshift,
2177 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2178 }
2179
2180 h = FFMIN(h, avctx->height - y);
2181
2182 if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
2183
2184 if (avctx->draw_horiz_band) {
2185 AVFrame *src;
2186 int offset[AV_NUM_DATA_POINTERS];
2187 int i;
2188
2189 if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
2190 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
2191 src = &cur->f;
2192 else if (last)
2193 src = &last->f;
2194 else
2195 return;
2196
2197 if (cur->f.pict_type == AV_PICTURE_TYPE_B &&
2198 picture_structure == PICT_FRAME &&
2199 avctx->codec_id != AV_CODEC_ID_SVQ3) {
2200 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
2201 offset[i] = 0;
2202 }else{
2203 offset[0]= y * src->linesize[0];
2204 offset[1]=
2205 offset[2]= (y >> vshift) * src->linesize[1];
2206 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
2207 offset[i] = 0;
2208 }
2209
2210 emms_c();
2211
2212 avctx->draw_horiz_band(avctx, src, offset,
2213 y, picture_structure, h);
2214 }
2215 }
2216
2217 void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2218 {
2219 int draw_edges = s->unrestricted_mv && !s->intra_only;
2220 ff_draw_horiz_band(s->avctx, &s->dsp, &s->current_picture,
2221 &s->last_picture, y, h, s->picture_structure,
2222 s->first_field, draw_edges, s->low_delay,
2223 s->v_edge_pos, s->h_edge_pos);
2224 }
2225
2226 void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
2227 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
2228 const int uvlinesize = s->current_picture.f.linesize[1];
2229 const int mb_size= 4;
2230
2231 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2232 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2233 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2234 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2235 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2236 s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2237 //block_index is not used by mpeg2, so it is not affected by chroma_format
2238
2239 s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size);
2240 s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
2241 s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
2242
2243 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
2244 {
2245 if(s->picture_structure==PICT_FRAME){
2246 s->dest[0] += s->mb_y * linesize << mb_size;
2247 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2248 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2249 }else{
2250 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2251 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2252 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2253 assert((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2254 }
2255 }
2256 }
2257
2258 /**
2259 * Permute an 8x8 block.
2260 * @param block the block which will be permuted according to the given permutation vector
2261 * @param permutation the permutation vector
2262 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
2263 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
2264 * (inverse) permutated to scantable order!
2265 */
2266 void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
2267 {
2268 int i;
2269 int16_t temp[64];
2270
2271 if(last<=0) return;
2272 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
2273
2274 for(i=0; i<=last; i++){
2275 const int j= scantable[i];
2276 temp[j]= block[j];
2277 block[j]=0;
2278 }
2279
2280 for(i=0; i<=last; i++){
2281 const int j= scantable[i];
2282 const int perm_j= permutation[j];
2283 block[perm_j]= temp[j];
2284 }
2285 }
2286
2287 void ff_mpeg_flush(AVCodecContext *avctx){
2288 int i;
2289 MpegEncContext *s = avctx->priv_data;
2290
2291 if(s==NULL || s->picture==NULL)
2292 return;
2293
2294 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2295 ff_mpeg_unref_picture(s, &s->picture[i]);
2296 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
2297
2298 ff_mpeg_unref_picture(s, &s->current_picture);
2299 ff_mpeg_unref_picture(s, &s->last_picture);
2300 ff_mpeg_unref_picture(s, &s->next_picture);
2301
2302 s->mb_x= s->mb_y= 0;
2303
2304 s->parse_context.state= -1;
2305 s->parse_context.frame_start_found= 0;
2306 s->parse_context.overread= 0;
2307 s->parse_context.overread_index= 0;
2308 s->parse_context.index= 0;
2309 s->parse_context.last_index= 0;
2310 s->bitstream_buffer_size=0;
2311 s->pp_time=0;
2312 }
2313
2314 static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
2315 int16_t *block, int n, int qscale)
2316 {
2317 int i, level, nCoeffs;
2318 const uint16_t *quant_matrix;
2319
2320 nCoeffs= s->block_last_index[n];
2321
2322 if (n < 4)
2323 block[0] = block[0] * s->y_dc_scale;
2324 else
2325 block[0] = block[0] * s->c_dc_scale;
2326 /* XXX: only mpeg1 */
2327 quant_matrix = s->intra_matrix;
2328 for(i=1;i<=nCoeffs;i++) {
2329 int j= s->intra_scantable.permutated[i];
2330 level = block[j];
2331 if (level) {
2332 if (level < 0) {
2333 level = -level;
2334 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2335 level = (level - 1) | 1;
2336 level = -level;
2337 } else {
2338 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2339 level = (level - 1) | 1;
2340 }
2341 block[j] = level;
2342 }
2343 }
2344 }
2345
2346 static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
2347 int16_t *block, int n, int qscale)
2348 {
2349 int i, level, nCoeffs;
2350 const uint16_t *quant_matrix;
2351
2352 nCoeffs= s->block_last_index[n];
2353
2354 quant_matrix = s->inter_matrix;
2355 for(i=0; i<=nCoeffs; i++) {
2356 int j= s->intra_scantable.permutated[i];
2357 level = block[j];
2358 if (level) {
2359 if (level < 0) {
2360 level = -level;
2361 level = (((level << 1) + 1) * qscale *
2362 ((int) (quant_matrix[j]))) >> 4;
2363 level = (level - 1) | 1;
2364 level = -level;
2365 } else {
2366 level = (((level << 1) + 1) * qscale *
2367 ((int) (quant_matrix[j]))) >> 4;
2368 level = (level - 1) | 1;
2369 }
2370 block[j] = level;
2371 }
2372 }
2373 }
2374
2375 static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
2376 int16_t *block, int n, int qscale)
2377 {
2378 int i, level, nCoeffs;
2379 const uint16_t *quant_matrix;
2380
2381 if(s->alternate_scan) nCoeffs= 63;
2382 else nCoeffs= s->block_last_index[n];
2383
2384 if (n < 4)
2385 block[0] = block[0] * s->y_dc_scale;
2386 else
2387 block[0] = block[0] * s->c_dc_scale;
2388 quant_matrix = s->intra_matrix;
2389 for(i=1;i<=nCoeffs;i++) {
2390 int j= s->intra_scantable.permutated[i];
2391 level = block[j];
2392 if (level) {
2393 if (level < 0) {
2394 level = -level;
2395 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2396 level = -level;
2397 } else {
2398 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2399 }
2400 block[j] = level;
2401 }
2402 }
2403 }
2404
2405 static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
2406 int16_t *block, int n, int qscale)
2407 {
2408 int i, level, nCoeffs;
2409 const uint16_t *quant_matrix;
2410 int sum=-1;
2411
2412 if(s->alternate_scan) nCoeffs= 63;
2413 else nCoeffs= s->block_last_index[n];
2414
2415 if (n < 4)
2416 block[0] = block[0] * s->y_dc_scale;
2417 else
2418 block[0] = block[0] * s->c_dc_scale;
2419 quant_matrix = s->intra_matrix;
2420 for(i=1;i<=nCoeffs;i++) {
2421 int j= s->intra_scantable.permutated[i];
2422 level = block[j];
2423 if (level) {
2424 if (level < 0) {
2425 level = -level;
2426 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2427 level = -level;
2428 } else {
2429 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2430 }
2431 block[j] = level;
2432 sum+=level;
2433 }
2434 }
2435 block[63]^=sum&1;
2436 }
2437
2438 static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
2439 int16_t *block, int n, int qscale)
2440 {
2441 int i, level, nCoeffs;
2442 const uint16_t *quant_matrix;
2443 int sum=-1;
2444
2445 if(s->alternate_scan) nCoeffs= 63;
2446 else nCoeffs= s->block_last_index[n];
2447
2448 quant_matrix = s->inter_matrix;
2449 for(i=0; i<=nCoeffs; i++) {
2450 int j= s->intra_scantable.permutated[i];
2451 level = block[j];
2452 if (level) {
2453 if (level < 0) {
2454 level = -level;
2455 level = (((level << 1) + 1) * qscale *
2456 ((int) (quant_matrix[j]))) >> 4;
2457 level = -level;
2458 } else {
2459 level = (((level << 1) + 1) * qscale *
2460 ((int) (quant_matrix[j]))) >> 4;
2461 }
2462 block[j] = level;
2463 sum+=level;
2464 }
2465 }
2466 block[63]^=sum&1;
2467 }
2468
2469 static void dct_unquantize_h263_intra_c(MpegEncContext *s,
2470 int16_t *block, int n, int qscale)
2471 {
2472 int i, level, qmul, qadd;
2473 int nCoeffs;
2474
2475 assert(s->block_last_index[n]>=0);
2476
2477 qmul = qscale << 1;
2478
2479 if (!s->h263_aic) {
2480 if (n < 4)
2481 block[0] = block[0] * s->y_dc_scale;
2482 else
2483 block[0] = block[0] * s->c_dc_scale;
2484 qadd = (qscale - 1) | 1;
2485 }else{
2486 qadd = 0;
2487 }
2488 if(s->ac_pred)
2489 nCoeffs=63;
2490 else
2491 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
2492
2493 for(i=1; i<=nCoeffs; i++) {
2494 level = block[i];
2495 if (level) {
2496 if (level < 0) {
2497 level = level * qmul - qadd;
2498 } else {
2499 level = level * qmul + qadd;
2500 }
2501 block[i] = level;
2502 }
2503 }
2504 }
2505
2506 static void dct_unquantize_h263_inter_c(MpegEncContext *s,
2507 int16_t *block, int n, int qscale)
2508 {
2509 int i, level, qmul, qadd;
2510 int nCoeffs;
2511
2512 assert(s->block_last_index[n]>=0);
2513
2514 qadd = (qscale - 1) | 1;
2515 qmul = qscale << 1;
2516
2517 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
2518
2519 for(i=0; i<=nCoeffs; i++) {
2520 level = block[i];
2521 if (level) {
2522 if (level < 0) {
2523 level = level * qmul - qadd;
2524 } else {
2525 level = level * qmul + qadd;
2526 }
2527 block[i] = level;
2528 }
2529 }
2530 }
2531
2532 /**
2533 * set qscale and update qscale dependent variables.
2534 */
2535 void ff_set_qscale(MpegEncContext * s, int qscale)
2536 {
2537 if (qscale < 1)
2538 qscale = 1;
2539 else if (qscale > 31)
2540 qscale = 31;
2541
2542 s->qscale = qscale;
2543 s->chroma_qscale= s->chroma_qscale_table[qscale];
2544
2545 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2546 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2547 }
2548
2549 void ff_MPV_report_decode_progress(MpegEncContext *s)
2550 {
2551 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
2552 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
2553 }
2554
2555 #if CONFIG_ERROR_RESILIENCE
2556 void ff_mpeg_er_frame_start(MpegEncContext *s)
2557 {
2558 ERContext *er = &s->er;
2559
2560 er->cur_pic = s->current_picture_ptr;
2561 er->last_pic = s->last_picture_ptr;
2562 er->next_pic = s->next_picture_ptr;
2563
2564 er->pp_time = s->pp_time;
2565 er->pb_time = s->pb_time;
2566 er->quarter_sample = s->quarter_sample;
2567 er->partitioned_frame = s->partitioned_frame;
2568
2569 ff_er_frame_start(er);
2570 }
2571 #endif /* CONFIG_ERROR_RESILIENCE */