mpegvideo: split the encoding-only parts of frame_start() into a separate function
[libav.git] / libavcodec / mpegvideo.c
CommitLineData
de6d9b64
FB
1/*
2 * The simplest mpeg encoder (well, it was the simplest!)
406792e7 3 * Copyright (c) 2000,2001 Fabrice Bellard
8f2ab833 4 * Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at>
de6d9b64 5 *
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DB
6 * 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at>
7 *
2912e87a 8 * This file is part of Libav.
b78e7197 9 *
2912e87a 10 * Libav is free software; you can redistribute it and/or
ff4ec49e
FB
11 * modify it under the terms of the GNU Lesser General Public
12 * License as published by the Free Software Foundation; either
b78e7197 13 * version 2.1 of the License, or (at your option) any later version.
de6d9b64 14 *
2912e87a 15 * Libav is distributed in the hope that it will be useful,
de6d9b64 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
ff4ec49e
FB
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 * Lesser General Public License for more details.
de6d9b64 19 *
ff4ec49e 20 * You should have received a copy of the GNU Lesser General Public
2912e87a 21 * License along with Libav; if not, write to the Free Software
5509bffa 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
de6d9b64 23 */
115329f1 24
983e3246 25/**
ba87f080 26 * @file
983e3246 27 * The simplest mpeg encoder (well, it was the simplest!).
115329f1
DB
28 */
29
6fee1b90 30#include "libavutil/attributes.h"
759001c5 31#include "libavutil/avassert.h"
737eb597 32#include "libavutil/imgutils.h"
19e30a58 33#include "libavutil/internal.h"
de6d9b64
FB
34#include "avcodec.h"
35#include "dsputil.h"
603a5f04 36#include "internal.h"
9734b8ba 37#include "mathops.h"
de6d9b64 38#include "mpegvideo.h"
d9c9259f 39#include "mjpegenc.h"
15025553 40#include "msmpeg4.h"
4440bd0d 41#include "xvmc_internal.h"
6a9c8594 42#include "thread.h"
e96682e6 43#include <limits.h>
de6d9b64 44
115329f1 45static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
88bd7fdc 46 int16_t *block, int n, int qscale);
115329f1 47static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
88bd7fdc 48 int16_t *block, int n, int qscale);
d50635cd 49static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
88bd7fdc 50 int16_t *block, int n, int qscale);
e27b6e62 51static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
88bd7fdc 52 int16_t *block, int n, int qscale);
d50635cd 53static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
88bd7fdc 54 int16_t *block, int n, int qscale);
115329f1 55static void dct_unquantize_h263_intra_c(MpegEncContext *s,
88bd7fdc 56 int16_t *block, int n, int qscale);
115329f1 57static void dct_unquantize_h263_inter_c(MpegEncContext *s,
88bd7fdc 58 int16_t *block, int n, int qscale);
3d9fccbf 59
363114e8
KT
60static 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
332f9ac4
MN
64};
65
363114e8
KT
66const 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,
6cbe71bd
AJ
76};
77
363114e8
KT
78static 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,
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88};
89
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90static 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,
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MN
100};
101
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KT
102static 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,
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MN
112};
113
363114e8 114const uint8_t *const ff_mpeg2_dc_scale_table[4] = {
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MN
115 ff_mpeg1_dc_scale_table,
116 mpeg2_dc_scale_table1,
117 mpeg2_dc_scale_table2,
118 mpeg2_dc_scale_table3,
119};
120
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AK
121const enum AVPixelFormat ff_pixfmt_list_420[] = {
122 AV_PIX_FMT_YUV420P,
123 AV_PIX_FMT_NONE
044f0296
GB
124};
125
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AK
126static 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
defdfc9a 153/* init common dct for both encoder and decoder */
5ef251e5 154av_cold int ff_dct_common_init(MpegEncContext *s)
de6d9b64 155{
9cf0841e 156 ff_dsputil_init(&s->dsp, s->avctx);
f4fed5a2 157 ff_hpeldsp_init(&s->hdsp, s->avctx->flags);
1f4ea4e0 158 ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample);
c3027b4d 159
d50635cd
MN
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;
363114e8 165 if (s->flags & CODEC_FLAG_BITEXACT)
e27b6e62 166 s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact;
d50635cd 167 s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c;
b0368839 168
70dd8892
DB
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);
676e200c 177
2ad1516a 178 /* load & permutate scantables
363114e8
KT
179 * note: only wmv uses different ones
180 */
181 if (s->alternate_scan) {
bb198e19
MN
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);
363114e8 184 } else {
bb198e19
MN
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 }
3d2e8cce
MN
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);
d930ef19 190
defdfc9a
AB
191 return 0;
192}
193
c99307ca 194static int frame_size_alloc(MpegEncContext *s, int linesize)
f1d8763a
JG
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)
45635885
JG
200 // VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9
201 // at uvlinesize. It supports only YUV420 so 24x24 is enough
f1d8763a 202 // linesize * interlaced * MBsize
45635885 203 FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 2 * 24,
f1d8763a
JG
204 fail);
205
259af1b9 206 FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 2 * 16 * 3,
f1d8763a
JG
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;
214fail:
215 av_freep(&s->edge_emu_buffer);
216 return AVERROR(ENOMEM);
217}
218
34e46c44 219/**
49bd8e4b 220 * Allocate a frame buffer
34e46c44
GB
221 */
222static int alloc_frame_buffer(MpegEncContext *s, Picture *pic)
223{
f1d8763a 224 int r, ret;
34e46c44 225
759001c5 226 pic->tf.f = &pic->f;
ee769c6a
AD
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)
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AK
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
a553c6a3 239 if (r < 0 || !pic->f.buf[0]) {
759001c5
AK
240 av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n",
241 r, pic->f.data[0]);
34e46c44
GB
242 return -1;
243 }
244
c3ebfcd6
HL
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
363114e8
KT
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");
759001c5 261 ff_mpeg_unref_picture(s, pic);
34e46c44
GB
262 return -1;
263 }
264
657ccb5a 265 if (pic->f.linesize[1] != pic->f.linesize[2]) {
363114e8
KT
266 av_log(s->avctx, AV_LOG_ERROR,
267 "get_buffer() failed (uv stride mismatch)\n");
759001c5 268 ff_mpeg_unref_picture(s, pic);
34e46c44
GB
269 return -1;
270 }
271
f1d8763a 272 if (!s->edge_emu_buffer &&
c99307ca 273 (ret = frame_size_alloc(s, pic->f.linesize[0])) < 0) {
f1d8763a
JG
274 av_log(s->avctx, AV_LOG_ERROR,
275 "get_buffer() failed to allocate context scratch buffers.\n");
759001c5 276 ff_mpeg_unref_picture(s, pic);
f1d8763a
JG
277 return ret;
278 }
279
34e46c44
GB
280 return 0;
281}
282
0b0a7a75 283void ff_free_picture_tables(Picture *pic)
363114e8 284{
759001c5 285 int i;
363114e8 286
759001c5
AK
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);
363114e8 293
759001c5
AK
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
300static int alloc_picture_tables(MpegEncContext *s, Picture *pic)
301{
302 const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1;
363114e8
KT
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;
0da71265 305 int i;
759001c5
AK
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
ccc71298 323 if (s->out_format == FMT_H263 || s->encoding) {
759001c5
AK
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
338static int make_tables_writable(Picture *pic)
339{
340 int ret, i;
341#define MAKE_WRITABLE(table) \
342do {\
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 */
367int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared)
368{
369 int i, ret;
115329f1 370
363114e8 371 if (shared) {
657ccb5a 372 assert(pic->f.data[0]);
759001c5 373 pic->shared = 1;
363114e8 374 } else {
a553c6a3 375 assert(!pic->f.buf[0]);
115329f1 376
34e46c44 377 if (alloc_frame_buffer(s, pic) < 0)
4e00e76b 378 return -1;
4e00e76b 379
657ccb5a
DB
380 s->linesize = pic->f.linesize[0];
381 s->uvlinesize = pic->f.linesize[1];
1e491e29 382 }
115329f1 383
759001c5
AK
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;
1e491e29 390
759001c5
AK
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;
4e00e76b 395 }
0da71265 396
759001c5
AK
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 }
115329f1 407
1e491e29 408 return 0;
759001c5
AK
409fail:
410 av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n");
411 ff_mpeg_unref_picture(s, pic);
0b0a7a75 412 ff_free_picture_tables(pic);
759001c5 413 return AVERROR(ENOMEM);
1e491e29
MN
414}
415
4e00e76b 416/**
58c42af7 417 * Deallocate a picture.
4e00e76b 418 */
759001c5 419void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic)
363114e8 420{
759001c5
AK
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);
4e00e76b 434
3eae9b03 435 if (pic->needs_realloc)
0b0a7a75 436 ff_free_picture_tables(pic);
3eae9b03 437
759001c5
AK
438 memset((uint8_t*)pic + off, 0, sizeof(*pic) - off);
439}
440
441static int update_picture_tables(Picture *dst, Picture *src)
442{
443 int i;
444
445#define UPDATE_TABLE(table)\
446do {\
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) {\
0b0a7a75 452 ff_free_picture_tables(dst);\
759001c5
AK
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);
363114e8 464 for (i = 0; i < 2; i++) {
759001c5
AK
465 UPDATE_TABLE(motion_val_buf[i]);
466 UPDATE_TABLE(ref_index_buf[i]);
0da71265 467 }
115329f1 468
759001c5
AK
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];
1e491e29 478 }
759001c5
AK
479
480 return 0;
481}
482
483int 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;
516fail:
517 ff_mpeg_unref_picture(s, dst);
518 return ret;
1e491e29
MN
519}
520
16e7b189
KS
521static 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
12b54a1f 530static int init_duplicate_context(MpegEncContext *s)
363114e8 531{
2cbd734a
MR
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;
9c3d33d6
MN
535 int i;
536
f1d8763a
JG
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;
363114e8 543
9c3d33d6 544 if (s->encoding) {
363114e8
KT
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)
9c3d33d6 552 }
115329f1 553 }
88bd7fdc 554 FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail)
363114e8 555 s->block = s->blocks[0];
9c3d33d6 556
363114e8 557 for (i = 0; i < 12; i++) {
21effaa4 558 s->pblocks[i] = &s->block[i];
9c3d33d6 559 }
16e7b189
KS
560 if (s->avctx->codec_tag == AV_RL32("VCR2"))
561 exchange_uv(s);
2cbd734a 562
79042a6e
MR
563 if (s->out_format == FMT_H263) {
564 /* ac values */
363114e8
KT
565 FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base,
566 yc_size * sizeof(int16_t) * 16, fail);
2cbd734a
MR
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
9c3d33d6
MN
572 return 0;
573fail:
efd29844 574 return -1; // free() through ff_MPV_common_end()
9c3d33d6
MN
575}
576
363114e8
KT
577static void free_duplicate_context(MpegEncContext *s)
578{
579 if (s == NULL)
580 return;
9c3d33d6 581
330deb75 582 av_freep(&s->edge_emu_buffer);
9c3d33d6 583 av_freep(&s->me.scratchpad);
363114e8
KT
584 s->me.temp =
585 s->rd_scratchpad =
586 s->b_scratchpad =
587 s->obmc_scratchpad = NULL;
115329f1 588
9c3d33d6
MN
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);
2cbd734a 593 av_freep(&s->ac_val_base);
363114e8 594 s->block = NULL;
9c3d33d6
MN
595}
596
363114e8
KT
597static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src)
598{
599#define COPY(a) bak->a = src->a
9c3d33d6
MN
600 COPY(edge_emu_buffer);
601 COPY(me.scratchpad);
a6f2c0d6 602 COPY(me.temp);
9c3d33d6
MN
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);
da16b204
MN
615 COPY(dct_count[0]);
616 COPY(dct_count[1]);
2cbd734a
MR
617 COPY(ac_val_base);
618 COPY(ac_val[0]);
619 COPY(ac_val[1]);
620 COPY(ac_val[2]);
9c3d33d6
MN
621#undef COPY
622}
623
f1d8763a 624int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src)
363114e8 625{
9c3d33d6 626 MpegEncContext bak;
f1d8763a 627 int i, ret;
363114e8
KT
628 // FIXME copy only needed parts
629 // START_TIMER
9c3d33d6
MN
630 backup_duplicate_context(&bak, dst);
631 memcpy(dst, src, sizeof(MpegEncContext));
632 backup_duplicate_context(dst, &bak);
363114e8 633 for (i = 0; i < 12; i++) {
21effaa4 634 dst->pblocks[i] = &dst->block[i];
c62c07d3 635 }
16e7b189
KS
636 if (dst->avctx->codec_tag == AV_RL32("VCR2"))
637 exchange_uv(dst);
f1d8763a 638 if (!dst->edge_emu_buffer &&
c99307ca 639 (ret = frame_size_alloc(dst, dst->linesize)) < 0) {
f1d8763a
JG
640 av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context "
641 "scratch buffers.\n");
642 return ret;
643 }
363114e8
KT
644 // STOP_TIMER("update_duplicate_context")
645 // about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads
f1d8763a 646 return 0;
9c3d33d6
MN
647}
648
363114e8
KT
649int ff_mpeg_update_thread_context(AVCodecContext *dst,
650 const AVCodecContext *src)
6a9c8594 651{
759001c5 652 int i, ret;
6a9c8594
AS
653 MpegEncContext *s = dst->priv_data, *s1 = src->priv_data;
654
363114e8
KT
655 if (dst == src || !s1->context_initialized)
656 return 0;
6a9c8594 657
363114e8
KT
658 // FIXME can parameters change on I-frames?
659 // in that case dst may need a reinit
660 if (!s->context_initialized) {
6a9c8594
AS
661 memcpy(s, s1, sizeof(MpegEncContext));
662
663 s->avctx = dst;
6a9c8594
AS
664 s->bitstream_buffer = NULL;
665 s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0;
666
efd29844 667 ff_MPV_common_init(s);
6a9c8594
AS
668 }
669
8701f4f8
JG
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
6a9c8594
AS
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;
6a9c8594 686
759001c5
AK
687 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
688 ff_mpeg_unref_picture(s, &s->picture[i]);
a553c6a3 689 if (s1->picture[i].f.buf[0] &&
759001c5
AK
690 (ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0)
691 return ret;
692 }
693
694#define UPDATE_PICTURE(pic)\
695do {\
696 ff_mpeg_unref_picture(s, &s->pic);\
a553c6a3 697 if (s1->pic.f.buf[0])\
759001c5
AK
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);
1481e198 708
4d9ec050
KT
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);
6a9c8594 712
4d9ec050 713 // Error/bug resilience
6a9c8594
AS
714 s->next_p_frame_damaged = s1->next_p_frame_damaged;
715 s->workaround_bugs = s1->workaround_bugs;
716
4d9ec050 717 // MPEG4 timing info
e62a43f6 718 memcpy(&s->last_time_base, &s1->last_time_base,
ee8af2dd 719 (char *) &s1->pb_field_time + sizeof(s1->pb_field_time) -
e62a43f6 720 (char *) &s1->last_time_base);
4d9ec050
KT
721
722 // B-frame info
723 s->max_b_frames = s1->max_b_frames;
724 s->low_delay = s1->low_delay;
ba0c8981 725 s->droppable = s1->droppable;
4d9ec050
KT
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);
6a9c8594
AS
741 }
742
f1d8763a
JG
743 // linesize dependend scratch buffer allocation
744 if (!s->edge_emu_buffer)
745 if (s1->linesize) {
c99307ca 746 if (frame_size_alloc(s, s1->linesize) < 0) {
f1d8763a
JG
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
4d9ec050
KT
757 // MPEG2/interlacing info
758 memcpy(&s->progressive_sequence, &s1->progressive_sequence,
759 (char *) &s1->rtp_mode - (char *) &s1->progressive_sequence);
6a9c8594 760
4d9ec050
KT
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;
6a9c8594
AS
765 }
766
767 return 0;
768}
769
3edcacde 770/**
58c42af7 771 * Set the given MpegEncContext to common defaults
4d9ec050 772 * (same for encoding and decoding).
58c42af7 773 * The changed fields will not depend upon the
4d9ec050 774 * prior state of the MpegEncContext.
3edcacde 775 */
efd29844 776void ff_MPV_common_defaults(MpegEncContext *s)
4d9ec050
KT
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;
7976241a 787
4d9ec050
KT
788 s->f_code = 1;
789 s->b_code = 1;
6a9c8594 790
881a5e04 791 s->slice_context_count = 1;
3edcacde
MN
792}
793
794/**
58c42af7 795 * Set the given MpegEncContext to defaults for decoding.
4d9ec050
KT
796 * the changed fields will not depend upon
797 * the prior state of the MpegEncContext.
3edcacde 798 */
efd29844 799void ff_MPV_decode_defaults(MpegEncContext *s)
4d9ec050 800{
efd29844 801 ff_MPV_common_defaults(s);
3edcacde
MN
802}
803
54974c62
AK
804static 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;
835fail:
836 av_freep(&er->er_temp_buffer);
837 av_freep(&er->error_status_table);
838 return AVERROR(ENOMEM);
839}
840
3edcacde 841/**
1b3439b3
JG
842 * Initialize and allocates MpegEncContext fields dependent on the resolution.
843 */
844static 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
1b3439b3
JG
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
54974c62 976 return init_er(s);
1b3439b3
JG
977fail:
978 return AVERROR(ENOMEM);
979}
980
981/**
3edcacde
MN
982 * init common structure for both encoder and decoder.
983 * this assumes that some variables like width/height are already set
984 */
efd29844 985av_cold int ff_MPV_common_init(MpegEncContext *s)
defdfc9a 986{
7e76fc52 987 int i;
881a5e04
JG
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;
defdfc9a 994
36ef5369 995 if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence)
0127b861 996 s->mb_height = (s->height + 31) / 32 * 2;
19cac8e3 997 else
1b661802 998 s->mb_height = (s->height + 15) / 16;
fdb52bcc 999
716d413c 1000 if (s->avctx->pix_fmt == AV_PIX_FMT_NONE) {
4d9ec050 1001 av_log(s->avctx, AV_LOG_ERROR,
716d413c 1002 "decoding to AV_PIX_FMT_NONE is not supported.\n");
9cfc1b3a
IK
1003 return -1;
1004 }
1005
881a5e04
JG
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;
000a9c02
MN
1015 }
1016
4d9ec050
KT
1017 if ((s->width || s->height) &&
1018 av_image_check_size(s->width, s->height, 0, s->avctx))
0ecca7a4
MN
1019 return -1;
1020
6180ade7 1021 ff_dct_common_init(s);
eb4b3dd3 1022
4d9ec050
KT
1023 s->flags = s->avctx->flags;
1024 s->flags2 = s->avctx->flags2;
defdfc9a 1025
5f24fe82
MS
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);
eb4b3dd3 1030
5f24fe82
MS
1031 /* convert fourcc to upper case */
1032 s->codec_tag = avpriv_toupper4(s->avctx->codec_tag);
115329f1 1033
5f24fe82 1034 s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag);
603a5f04 1035
4d9ec050 1036 FF_ALLOCZ_OR_GOTO(s->avctx, s->picture,
759001c5
AK
1037 MAX_PICTURE_COUNT * sizeof(Picture), fail);
1038 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
2d1f4288 1039 av_frame_unref(&s->picture[i].f);
747069e2 1040 }
759001c5
AK
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));
2d1f4288
AK
1044 av_frame_unref(&s->next_picture.f);
1045 av_frame_unref(&s->last_picture.f);
1046 av_frame_unref(&s->current_picture.f);
b465449e 1047
fb22c237 1048 if (s->width && s->height) {
7e76fc52 1049 if (init_context_frame(s))
1b3439b3 1050 goto fail;
4d9ec050
KT
1051
1052 s->parse_context.state = -1;
fb22c237 1053 }
d7425f59 1054
de6d9b64 1055 s->context_initialized = 1;
4d9ec050 1056 s->thread_context[0] = s;
9c3d33d6 1057
fb22c237 1058 if (s->width && s->height) {
881a5e04
JG
1059 if (nb_slices > 1) {
1060 for (i = 1; i < nb_slices; i++) {
4d9ec050
KT
1061 s->thread_context[i] = av_malloc(sizeof(MpegEncContext));
1062 memcpy(s->thread_context[i], s, sizeof(MpegEncContext));
1063 }
9c3d33d6 1064
881a5e04 1065 for (i = 0; i < nb_slices; i++) {
12b54a1f 1066 if (init_duplicate_context(s->thread_context[i]) < 0)
4d9ec050
KT
1067 goto fail;
1068 s->thread_context[i]->start_mb_y =
881a5e04 1069 (s->mb_height * (i) + nb_slices / 2) / nb_slices;
4d9ec050 1070 s->thread_context[i]->end_mb_y =
881a5e04 1071 (s->mb_height * (i + 1) + nb_slices / 2) / nb_slices;
4d9ec050
KT
1072 }
1073 } else {
12b54a1f 1074 if (init_duplicate_context(s) < 0)
d969e93a 1075 goto fail;
4d9ec050
KT
1076 s->start_mb_y = 0;
1077 s->end_mb_y = s->mb_height;
d969e93a 1078 }
881a5e04 1079 s->slice_context_count = nb_slices;
fb22c237
RB
1080 }
1081
de6d9b64
FB
1082 return 0;
1083 fail:
efd29844 1084 ff_MPV_common_end(s);
de6d9b64
FB
1085 return -1;
1086}
1087
1b3439b3
JG
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 */
1093static int free_context_frame(MpegEncContext *s)
de6d9b64 1094{
bb198e19 1095 int i, j, k;
de6d9b64 1096
6000abfa 1097 av_freep(&s->mb_type);
7bc9090a
MN
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);
4d9ec050
KT
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++) {
bb198e19 1113 av_freep(&s->b_field_mv_table_base[i][j][k]);
4d9ec050 1114 s->b_field_mv_table[i][j][k] = NULL;
bb198e19
MN
1115 }
1116 av_freep(&s->b_field_select_table[i][j]);
1117 av_freep(&s->p_field_mv_table_base[i][j]);
4d9ec050 1118 s->p_field_mv_table[i][j] = NULL;
bb198e19
MN
1119 }
1120 av_freep(&s->p_field_select_table[i]);
1121 }
115329f1 1122
137c8468 1123 av_freep(&s->dc_val_base);
137c8468 1124 av_freep(&s->coded_block_base);
6000abfa 1125 av_freep(&s->mbintra_table);
7f2fe444
MN
1126 av_freep(&s->cbp_table);
1127 av_freep(&s->pred_dir_table);
115329f1 1128
6000abfa 1129 av_freep(&s->mbskip_table);
0ecca7a4 1130
54974c62
AK
1131 av_freep(&s->er.error_status_table);
1132 av_freep(&s->er.er_temp_buffer);
7bc9090a 1133 av_freep(&s->mb_index2xy);
158c7f05 1134 av_freep(&s->lambda_table);
1b3439b3
JG
1135 av_freep(&s->cplx_tab);
1136 av_freep(&s->bits_tab);
1137
1138 s->linesize = s->uvlinesize = 0;
1139
1b3439b3
JG
1140 return 0;
1141}
1142
435c0b87
JG
1143int 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
759001c5
AK
1157 if ((err = free_context_frame(s)) < 0)
1158 return err;
435c0b87
JG
1159
1160 if (s->picture)
759001c5 1161 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
435c0b87
JG
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;
19cac8e3 1172 else
435c0b87
JG
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++) {
12b54a1f 1193 if (init_duplicate_context(s->thread_context[i]) < 0)
435c0b87
JG
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 {
12b54a1f 1201 if (init_duplicate_context(s) < 0)
435c0b87
JG
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
1b3439b3
JG
1215/* init common structure for both encoder and decoder */
1216void 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
759001c5
AK
1236 if (s->picture) {
1237 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
0b0a7a75 1238 ff_free_picture_tables(&s->picture[i]);
759001c5 1239 ff_mpeg_unref_picture(s, &s->picture[i]);
9b4b6e09 1240 }
de6d9b64 1241 }
b465449e 1242 av_freep(&s->picture);
0b0a7a75 1243 ff_free_picture_tables(&s->last_picture);
759001c5 1244 ff_mpeg_unref_picture(s, &s->last_picture);
0b0a7a75 1245 ff_free_picture_tables(&s->current_picture);
759001c5 1246 ff_mpeg_unref_picture(s, &s->current_picture);
0b0a7a75 1247 ff_free_picture_tables(&s->next_picture);
759001c5 1248 ff_mpeg_unref_picture(s, &s->next_picture);
32c7589b
JG
1249
1250 free_context_frame(s);
1251
4d9ec050
KT
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;
de6d9b64
FB
1257}
1258
6fee1b90
DB
1259av_cold void ff_init_rl(RLTable *rl,
1260 uint8_t static_store[2][2 * MAX_RUN + MAX_LEVEL + 3])
1d0d55da 1261{
4d9ec050
KT
1262 int8_t max_level[MAX_RUN + 1], max_run[MAX_LEVEL + 1];
1263 uint8_t index_run[MAX_RUN + 1];
1d0d55da
MN
1264 int last, run, level, start, end, i;
1265
c65dfac4 1266 /* If table is static, we can quit if rl->max_level[0] is not NULL */
4d9ec050 1267 if (static_store && rl->max_level[0])
073c2593
BP
1268 return;
1269
1d0d55da 1270 /* compute max_level[], max_run[] and index_run[] */
4d9ec050 1271 for (last = 0; last < 2; last++) {
1d0d55da
MN
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);
4d9ec050
KT
1283 for (i = start; i < end; i++) {
1284 run = rl->table_run[i];
1d0d55da
MN
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 }
4d9ec050 1293 if (static_store)
3502a54f 1294 rl->max_level[last] = static_store[last];
073c2593
BP
1295 else
1296 rl->max_level[last] = av_malloc(MAX_RUN + 1);
1d0d55da 1297 memcpy(rl->max_level[last], max_level, MAX_RUN + 1);
4d9ec050
KT
1298 if (static_store)
1299 rl->max_run[last] = static_store[last] + MAX_RUN + 1;
073c2593 1300 else
4d9ec050 1301 rl->max_run[last] = av_malloc(MAX_LEVEL + 1);
1d0d55da 1302 memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1);
4d9ec050 1303 if (static_store)
3502a54f 1304 rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2;
073c2593
BP
1305 else
1306 rl->index_run[last] = av_malloc(MAX_RUN + 1);
1d0d55da
MN
1307 memcpy(rl->index_run[last], index_run, MAX_RUN + 1);
1308 }
1309}
1310
6fee1b90 1311av_cold void ff_init_vlc_rl(RLTable *rl)
898d5d5d
AJ
1312{
1313 int i, q;
1314
4d9ec050
KT
1315 for (q = 0; q < 32; q++) {
1316 int qmul = q * 2;
1317 int qadd = (q - 1) | 1;
898d5d5d 1318
4d9ec050
KT
1319 if (q == 0) {
1320 qmul = 1;
1321 qadd = 0;
898d5d5d 1322 }
4d9ec050
KT
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];
898d5d5d
AJ
1326 int level, run;
1327
4d9ec050
KT
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;
898d5d5d
AJ
1342 }
1343 }
4d9ec050
KT
1344 rl->rl_vlc[q][i].len = len;
1345 rl->rl_vlc[q][i].level = level;
1346 rl->rl_vlc[q][i].run = run;
898d5d5d
AJ
1347 }
1348 }
1349}
1350
282c6a1a 1351static void release_unused_pictures(MpegEncContext *s)
6a9c8594
AS
1352{
1353 int i;
1354
1355 /* release non reference frames */
759001c5 1356 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
282c6a1a 1357 if (!s->picture[i].reference)
759001c5 1358 ff_mpeg_unref_picture(s, &s->picture[i]);
6a9c8594
AS
1359 }
1360}
1361
435c0b87
JG
1362static inline int pic_is_unused(MpegEncContext *s, Picture *pic)
1363{
a553c6a3 1364 if (pic->f.buf[0] == NULL)
435c0b87 1365 return 1;
759001c5
AK
1366 if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF))
1367 return 1;
435c0b87
JG
1368 return 0;
1369}
1370
1371static int find_unused_picture(MpegEncContext *s, int shared)
4d9ec050 1372{
4e00e76b 1373 int i;
115329f1 1374
4d9ec050 1375 if (shared) {
759001c5 1376 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
a553c6a3 1377 if (s->picture[i].f.buf[0] == NULL)
657ccb5a 1378 return i;
4e00e76b 1379 }
4d9ec050 1380 } else {
759001c5 1381 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
435c0b87 1382 if (pic_is_unused(s, &s->picture[i]))
657ccb5a 1383 return i;
4e00e76b
MN
1384 }
1385 }
1386
4f820131 1387 return AVERROR_INVALIDDATA;
4e00e76b
MN
1388}
1389
435c0b87
JG
1390int ff_find_unused_picture(MpegEncContext *s, int shared)
1391{
1392 int ret = find_unused_picture(s, shared);
1393
759001c5 1394 if (ret >= 0 && ret < MAX_PICTURE_COUNT) {
435c0b87
JG
1395 if (s->picture[ret].needs_realloc) {
1396 s->picture[ret].needs_realloc = 0;
0b0a7a75 1397 ff_free_picture_tables(&s->picture[ret]);
759001c5 1398 ff_mpeg_unref_picture(s, &s->picture[ret]);
435c0b87
JG
1399 }
1400 }
1401 return ret;
1402}
1403
5f194811 1404/**
aec25b1c
AK
1405 * generic function called after decoding
1406 * the header and before a frame is decoded.
5f194811 1407 */
efd29844 1408int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx)
de6d9b64 1409{
759001c5 1410 int i, ret;
357ec71f 1411 Picture *pic;
160d679c 1412 s->mb_skipped = 0;
0da71265 1413
c65dfac4 1414 /* mark & release old frames */
ee870491
AK
1415 if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr &&
1416 s->last_picture_ptr != s->next_picture_ptr &&
a553c6a3 1417 s->last_picture_ptr->f.buf[0]) {
ee870491
AK
1418 ff_mpeg_unref_picture(s, s->last_picture_ptr);
1419 }
c65dfac4 1420
ee870491
AK
1421 /* release forgotten pictures */
1422 /* if (mpeg124/h263) */
aec25b1c
AK
1423 for (i = 0; i < MAX_PICTURE_COUNT; i++) {
1424 if (&s->picture[i] != s->last_picture_ptr &&
1425 &s->picture[i] != s->next_picture_ptr &&
1426 s->picture[i].reference && !s->picture[i].needs_realloc) {
1427 if (!(avctx->active_thread_type & FF_THREAD_FRAME))
1428 av_log(avctx, AV_LOG_ERROR,
1429 "releasing zombie picture\n");
1430 ff_mpeg_unref_picture(s, &s->picture[i]);
d6db1c9c 1431 }
ee870491 1432 }
d52b4abe 1433
4b796681
JG
1434 ff_mpeg_unref_picture(s, &s->current_picture);
1435
aec25b1c 1436 release_unused_pictures(s);
e20c4069 1437
aec25b1c
AK
1438 if (s->current_picture_ptr &&
1439 s->current_picture_ptr->f.buf[0] == NULL) {
1440 // we already have a unused image
1441 // (maybe it was set before reading the header)
1442 pic = s->current_picture_ptr;
1443 } else {
1444 i = ff_find_unused_picture(s, 0);
1445 if (i < 0) {
1446 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1447 return i;
5f194811 1448 }
aec25b1c
AK
1449 pic = &s->picture[i];
1450 }
5f194811 1451
aec25b1c
AK
1452 pic->reference = 0;
1453 if (!s->droppable) {
1454 if (s->pict_type != AV_PICTURE_TYPE_B)
1455 pic->reference = 3;
1456 }
b536d0aa 1457
aec25b1c 1458 pic->f.coded_picture_number = s->coded_picture_number++;
115329f1 1459
aec25b1c
AK
1460 if (ff_alloc_picture(s, pic, 0) < 0)
1461 return -1;
93a21abd 1462
aec25b1c
AK
1463 s->current_picture_ptr = pic;
1464 // FIXME use only the vars from current_pic
1465 s->current_picture_ptr->f.top_field_first = s->top_field_first;
1466 if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO ||
1467 s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
1468 if (s->picture_structure != PICT_FRAME)
1469 s->current_picture_ptr->f.top_field_first =
1470 (s->picture_structure == PICT_TOP_FIELD) == s->first_field;
1e491e29 1471 }
aec25b1c
AK
1472 s->current_picture_ptr->f.interlaced_frame = !s->progressive_frame &&
1473 !s->progressive_sequence;
1474 s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME;
b7adc711 1475
657ccb5a 1476 s->current_picture_ptr->f.pict_type = s->pict_type;
c65dfac4
KT
1477 // if (s->flags && CODEC_FLAG_QSCALE)
1478 // s->current_picture_ptr->quality = s->new_picture_ptr->quality;
657ccb5a 1479 s->current_picture_ptr->f.key_frame = s->pict_type == AV_PICTURE_TYPE_I;
9f2e61b6 1480
759001c5
AK
1481 if ((ret = ff_mpeg_ref_picture(s, &s->current_picture,
1482 s->current_picture_ptr)) < 0)
1483 return ret;
115329f1 1484
19cac8e3 1485 if (s->pict_type != AV_PICTURE_TYPE_B) {
c65dfac4 1486 s->last_picture_ptr = s->next_picture_ptr;
ba0c8981 1487 if (!s->droppable)
c65dfac4 1488 s->next_picture_ptr = s->current_picture_ptr;
de6d9b64 1489 }
1218777f
DB
1490 av_dlog(s->avctx, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n",
1491 s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr,
1492 s->last_picture_ptr ? s->last_picture_ptr->f.data[0] : NULL,
1493 s->next_picture_ptr ? s->next_picture_ptr->f.data[0] : NULL,
1494 s->current_picture_ptr ? s->current_picture_ptr->f.data[0] : NULL,
ba0c8981 1495 s->pict_type, s->droppable);
c65dfac4 1496
ee870491 1497 if ((s->last_picture_ptr == NULL ||
a553c6a3 1498 s->last_picture_ptr->f.buf[0] == NULL) &&
ee870491
AK
1499 (s->pict_type != AV_PICTURE_TYPE_I ||
1500 s->picture_structure != PICT_FRAME)) {
1501 int h_chroma_shift, v_chroma_shift;
1502 av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt,
1503 &h_chroma_shift, &v_chroma_shift);
1504 if (s->pict_type != AV_PICTURE_TYPE_I)
1505 av_log(avctx, AV_LOG_ERROR,
1506 "warning: first frame is no keyframe\n");
1507 else if (s->picture_structure != PICT_FRAME)
1508 av_log(avctx, AV_LOG_INFO,
1509 "allocate dummy last picture for field based first keyframe\n");
1510
1511 /* Allocate a dummy frame */
1512 i = ff_find_unused_picture(s, 0);
1513 if (i < 0) {
1514 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1515 return i;
d52b4abe 1516 }
ee870491 1517 s->last_picture_ptr = &s->picture[i];
feded990
AK
1518
1519 s->last_picture_ptr->reference = 3;
1520 s->last_picture_ptr->f.pict_type = AV_PICTURE_TYPE_I;
1521
ee870491
AK
1522 if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) {
1523 s->last_picture_ptr = NULL;
1524 return -1;
d52b4abe 1525 }
d52b4abe 1526
ee870491
AK
1527 memset(s->last_picture_ptr->f.data[0], 0,
1528 avctx->height * s->last_picture_ptr->f.linesize[0]);
1529 memset(s->last_picture_ptr->f.data[1], 0x80,
1530 (avctx->height >> v_chroma_shift) *
1531 s->last_picture_ptr->f.linesize[1]);
1532 memset(s->last_picture_ptr->f.data[2], 0x80,
1533 (avctx->height >> v_chroma_shift) *
1534 s->last_picture_ptr->f.linesize[2]);
1535
1536 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0);
1537 ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1);
1538 }
1539 if ((s->next_picture_ptr == NULL ||
a553c6a3 1540 s->next_picture_ptr->f.buf[0] == NULL) &&
ee870491
AK
1541 s->pict_type == AV_PICTURE_TYPE_B) {
1542 /* Allocate a dummy frame */
1543 i = ff_find_unused_picture(s, 0);
1544 if (i < 0) {
1545 av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n");
1546 return i;
759001c5 1547 }
ee870491 1548 s->next_picture_ptr = &s->picture[i];
feded990
AK
1549
1550 s->next_picture_ptr->reference = 3;
1551 s->next_picture_ptr->f.pict_type = AV_PICTURE_TYPE_I;
1552
ee870491
AK
1553 if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) {
1554 s->next_picture_ptr = NULL;
1555 return -1;
759001c5 1556 }
ee870491
AK
1557 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0);
1558 ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1);
1559 }
1560
1561 if (s->last_picture_ptr) {
1562 ff_mpeg_unref_picture(s, &s->last_picture);
a553c6a3 1563 if (s->last_picture_ptr->f.buf[0] &&
ee870491
AK
1564 (ret = ff_mpeg_ref_picture(s, &s->last_picture,
1565 s->last_picture_ptr)) < 0)
1566 return ret;
1567 }
1568 if (s->next_picture_ptr) {
1569 ff_mpeg_unref_picture(s, &s->next_picture);
a553c6a3 1570 if (s->next_picture_ptr->f.buf[0] &&
ee870491
AK
1571 (ret = ff_mpeg_ref_picture(s, &s->next_picture,
1572 s->next_picture_ptr)) < 0)
1573 return ret;
1574 }
115329f1 1575
72072bf9 1576 if (s->pict_type != AV_PICTURE_TYPE_I &&
a553c6a3 1577 !(s->last_picture_ptr && s->last_picture_ptr->f.buf[0])) {
72072bf9
LB
1578 av_log(s, AV_LOG_ERROR,
1579 "Non-reference picture received and no reference available\n");
1580 return AVERROR_INVALIDDATA;
1581 }
3ab77000 1582
19cac8e3 1583 if (s->picture_structure!= PICT_FRAME) {
b536d0aa 1584 int i;
c65dfac4
KT
1585 for (i = 0; i < 4; i++) {
1586 if (s->picture_structure == PICT_BOTTOM_FIELD) {
1587 s->current_picture.f.data[i] +=
1588 s->current_picture.f.linesize[i];
115329f1 1589 }
657ccb5a
DB
1590 s->current_picture.f.linesize[i] *= 2;
1591 s->last_picture.f.linesize[i] *= 2;
1592 s->next_picture.f.linesize[i] *= 2;
b536d0aa
MN
1593 }
1594 }
115329f1 1595
5b22d6e1 1596 s->err_recognition = avctx->err_recognition;
aa388dba 1597
c65dfac4
KT
1598 /* set dequantizer, we can't do it during init as
1599 * it might change for mpeg4 and we can't do it in the header
1600 * decode as init is not called for mpeg4 there yet */
36ef5369 1601 if (s->mpeg_quant || s->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
d50635cd
MN
1602 s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra;
1603 s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter;
c65dfac4 1604 } else if (s->out_format == FMT_H263 || s->out_format == FMT_H261) {
d50635cd
MN
1605 s->dct_unquantize_intra = s->dct_unquantize_h263_intra;
1606 s->dct_unquantize_inter = s->dct_unquantize_h263_inter;
c65dfac4 1607 } else {
d50635cd
MN
1608 s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra;
1609 s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter;
1610 }
d6db1c9c 1611
19e30a58
DB
1612#if FF_API_XVMC
1613FF_DISABLE_DEPRECATION_WARNINGS
c65dfac4 1614 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration)
a002da79 1615 return ff_xvmc_field_start(s, avctx);
19e30a58
DB
1616FF_ENABLE_DEPRECATION_WARNINGS
1617#endif /* FF_API_XVMC */
83344066 1618
d6db1c9c 1619 return 0;
de6d9b64 1620}
21af69f7 1621
381a7225 1622/* called after a frame has been decoded. */
efd29844 1623void ff_MPV_frame_end(MpegEncContext *s)
de6d9b64 1624{
19e30a58
DB
1625#if FF_API_XVMC
1626FF_DISABLE_DEPRECATION_WARNINGS
6a9c8594 1627 /* redraw edges for the frame if decoding didn't complete */
c65dfac4
KT
1628 // just to make sure that all data is rendered.
1629 if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) {
a002da79 1630 ff_xvmc_field_end(s);
19e30a58
DB
1631 } else
1632FF_ENABLE_DEPRECATION_WARNINGS
1633#endif /* FF_API_XVMC */
381a7225 1634 if (s->er.error_count &&
19e30a58
DB
1635 !s->avctx->hwaccel &&
1636 s->unrestricted_mv &&
1637 s->current_picture.reference &&
1638 !s->intra_only &&
1639 !(s->flags & CODEC_FLAG_EMU_EDGE)) {
1640 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);
1641 int hshift = desc->log2_chroma_w;
1642 int vshift = desc->log2_chroma_h;
1643 s->dsp.draw_edges(s->current_picture.f.data[0], s->linesize,
1644 s->h_edge_pos, s->v_edge_pos,
1645 EDGE_WIDTH, EDGE_WIDTH,
1646 EDGE_TOP | EDGE_BOTTOM);
1647 s->dsp.draw_edges(s->current_picture.f.data[1], s->uvlinesize,
1648 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1649 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1650 EDGE_TOP | EDGE_BOTTOM);
1651 s->dsp.draw_edges(s->current_picture.f.data[2], s->uvlinesize,
1652 s->h_edge_pos >> hshift, s->v_edge_pos >> vshift,
1653 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift,
1654 EDGE_TOP | EDGE_BOTTOM);
de6d9b64 1655 }
6a9c8594 1656
5975626d 1657 emms_c();
115329f1 1658
19cac8e3 1659 if (s->current_picture.reference)
759001c5 1660 ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0);
de6d9b64
FB
1661}
1662
7bc9090a 1663/**
c65dfac4 1664 * Print debugging info for the given picture.
7bc9090a 1665 */
759001c5 1666void ff_print_debug_info(MpegEncContext *s, Picture *p)
c65dfac4 1667{
759001c5
AK
1668 AVFrame *pict;
1669 if (s->avctx->hwaccel || !p || !p->mb_type)
c65dfac4 1670 return;
759001c5 1671 pict = &p->f;
7bc9090a 1672
c65dfac4 1673 if (s->avctx->debug & (FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)) {
7bc9090a 1674 int x,y;
115329f1 1675
0c9bbaec
WH
1676 av_log(s->avctx,AV_LOG_DEBUG,"New frame, type: ");
1677 switch (pict->pict_type) {
c65dfac4
KT
1678 case AV_PICTURE_TYPE_I:
1679 av_log(s->avctx,AV_LOG_DEBUG,"I\n");
1680 break;
1681 case AV_PICTURE_TYPE_P:
1682 av_log(s->avctx,AV_LOG_DEBUG,"P\n");
1683 break;
1684 case AV_PICTURE_TYPE_B:
1685 av_log(s->avctx,AV_LOG_DEBUG,"B\n");
1686 break;
1687 case AV_PICTURE_TYPE_S:
1688 av_log(s->avctx,AV_LOG_DEBUG,"S\n");
1689 break;
1690 case AV_PICTURE_TYPE_SI:
1691 av_log(s->avctx,AV_LOG_DEBUG,"SI\n");
1692 break;
1693 case AV_PICTURE_TYPE_SP:
1694 av_log(s->avctx,AV_LOG_DEBUG,"SP\n");
1695 break;
0c9bbaec 1696 }
c65dfac4
KT
1697 for (y = 0; y < s->mb_height; y++) {
1698 for (x = 0; x < s->mb_width; x++) {
1699 if (s->avctx->debug & FF_DEBUG_SKIP) {
1700 int count = s->mbskip_table[x + y * s->mb_stride];
1701 if (count > 9)
1702 count = 9;
9b879566 1703 av_log(s->avctx, AV_LOG_DEBUG, "%1d", count);
7bc9090a 1704 }
c65dfac4
KT
1705 if (s->avctx->debug & FF_DEBUG_QP) {
1706 av_log(s->avctx, AV_LOG_DEBUG, "%2d",
759001c5 1707 p->qscale_table[x + y * s->mb_stride]);
7bc9090a 1708 }
c65dfac4 1709 if (s->avctx->debug & FF_DEBUG_MB_TYPE) {
759001c5 1710 int mb_type = p->mb_type[x + y * s->mb_stride];
c65dfac4
KT
1711 // Type & MV direction
1712 if (IS_PCM(mb_type))
9b879566 1713 av_log(s->avctx, AV_LOG_DEBUG, "P");
c65dfac4 1714 else if (IS_INTRA(mb_type) && IS_ACPRED(mb_type))
9b879566 1715 av_log(s->avctx, AV_LOG_DEBUG, "A");
c65dfac4 1716 else if (IS_INTRA4x4(mb_type))
9b879566 1717 av_log(s->avctx, AV_LOG_DEBUG, "i");
c65dfac4 1718 else if (IS_INTRA16x16(mb_type))
9b879566 1719 av_log(s->avctx, AV_LOG_DEBUG, "I");
c65dfac4 1720 else if (IS_DIRECT(mb_type) && IS_SKIP(mb_type))
9b879566 1721 av_log(s->avctx, AV_LOG_DEBUG, "d");
c65dfac4 1722 else if (IS_DIRECT(mb_type))
9b879566 1723 av_log(s->avctx, AV_LOG_DEBUG, "D");
c65dfac4 1724 else if (IS_GMC(mb_type) && IS_SKIP(mb_type))
9b879566 1725 av_log(s->avctx, AV_LOG_DEBUG, "g");
c65dfac4 1726 else if (IS_GMC(mb_type))
9b879566 1727 av_log(s->avctx, AV_LOG_DEBUG, "G");
c65dfac4 1728 else if (IS_SKIP(mb_type))
9b879566 1729 av_log(s->avctx, AV_LOG_DEBUG, "S");
c65dfac4 1730 else if (!USES_LIST(mb_type, 1))
9b879566 1731 av_log(s->avctx, AV_LOG_DEBUG, ">");
c65dfac4 1732 else if (!USES_LIST(mb_type, 0))
9b879566 1733 av_log(s->avctx, AV_LOG_DEBUG, "<");
c65dfac4 1734 else {
7bc9090a 1735 assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1));
9b879566 1736 av_log(s->avctx, AV_LOG_DEBUG, "X");
7bc9090a 1737 }
115329f1 1738
c65dfac4
KT
1739 // segmentation
1740 if (IS_8X8(mb_type))
9b879566 1741 av_log(s->avctx, AV_LOG_DEBUG, "+");
c65dfac4 1742 else if (IS_16X8(mb_type))
9b879566 1743 av_log(s->avctx, AV_LOG_DEBUG, "-");
c65dfac4 1744 else if (IS_8X16(mb_type))
30344a83 1745 av_log(s->avctx, AV_LOG_DEBUG, "|");
c65dfac4 1746 else if (IS_INTRA(mb_type) || IS_16X16(mb_type))
9b879566 1747 av_log(s->avctx, AV_LOG_DEBUG, " ");
7bc9090a 1748 else
9b879566 1749 av_log(s->avctx, AV_LOG_DEBUG, "?");
115329f1
DB
1750
1751
c65dfac4 1752 if (IS_INTERLACED(mb_type))
9b879566 1753 av_log(s->avctx, AV_LOG_DEBUG, "=");
7bc9090a 1754 else
9b879566 1755 av_log(s->avctx, AV_LOG_DEBUG, " ");
7bc9090a 1756 }
7bc9090a 1757 }
9b879566 1758 av_log(s->avctx, AV_LOG_DEBUG, "\n");
7bc9090a
MN
1759 }
1760 }
1761}
1762
6a9c8594
AS
1763/**
1764 * find the lowest MB row referenced in the MVs
1765 */
efd29844 1766int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir)
6a9c8594
AS
1767{
1768 int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample;
1769 int my, off, i, mvs;
1770
6bcdfe48
MN
1771 if (s->picture_structure != PICT_FRAME || s->mcsel)
1772 goto unhandled;
6a9c8594
AS
1773
1774 switch (s->mv_type) {
1775 case MV_TYPE_16X16:
1776 mvs = 1;
1777 break;
1778 case MV_TYPE_16X8:
1779 mvs = 2;
1780 break;
1781 case MV_TYPE_8X8:
1782 mvs = 4;
1783 break;
1784 default:
1785 goto unhandled;
1786 }
1787
1788 for (i = 0; i < mvs; i++) {
1789 my = s->mv[dir][i][1]<<qpel_shift;
1790 my_max = FFMAX(my_max, my);
1791 my_min = FFMIN(my_min, my);
1792 }
1793
1794 off = (FFMAX(-my_min, my_max) + 63) >> 6;
1795
1796 return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1);
1797unhandled:
1798 return s->mb_height-1;
1799}
1800
3ada94ba
BF
1801/* put block[] to dest[] */
1802static inline void put_dct(MpegEncContext *s,
88bd7fdc 1803 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
178fcca8 1804{
3ada94ba
BF
1805 s->dct_unquantize_intra(s, block, i, qscale);
1806 s->dsp.idct_put (dest, line_size, block);
1807}
da9c9637 1808
3ada94ba
BF
1809/* add block[] to dest[] */
1810static inline void add_dct(MpegEncContext *s,
88bd7fdc 1811 int16_t *block, int i, uint8_t *dest, int line_size)
3ada94ba
BF
1812{
1813 if (s->block_last_index[i] >= 0) {
1814 s->dsp.idct_add (dest, line_size, block);
1815 }
1816}
2417652e 1817
115329f1 1818static inline void add_dequant_dct(MpegEncContext *s,
88bd7fdc 1819 int16_t *block, int i, uint8_t *dest, int line_size, int qscale)
0f440e02 1820{
de6d9b64 1821 if (s->block_last_index[i] >= 0) {
d50635cd 1822 s->dct_unquantize_inter(s, block, i, qscale);
9dbcbd92 1823
b0368839 1824 s->dsp.idct_add (dest, line_size, block);
de6d9b64
FB
1825 }
1826}
1827
7f2fe444 1828/**
58c42af7 1829 * Clean dc, ac, coded_block for the current non-intra MB.
7f2fe444
MN
1830 */
1831void ff_clean_intra_table_entries(MpegEncContext *s)
1832{
137c8468 1833 int wrap = s->b8_stride;
7f2fe444 1834 int xy = s->block_index[0];
115329f1
DB
1835
1836 s->dc_val[0][xy ] =
1837 s->dc_val[0][xy + 1 ] =
7f2fe444
MN
1838 s->dc_val[0][xy + wrap] =
1839 s->dc_val[0][xy + 1 + wrap] = 1024;
1840 /* ac pred */
0c1a9eda
ZK
1841 memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t));
1842 memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t));
7f2fe444
MN
1843 if (s->msmpeg4_version>=3) {
1844 s->coded_block[xy ] =
1845 s->coded_block[xy + 1 ] =
1846 s->coded_block[xy + wrap] =
1847 s->coded_block[xy + 1 + wrap] = 0;
1848 }
1849 /* chroma */
137c8468
MN
1850 wrap = s->mb_stride;
1851 xy = s->mb_x + s->mb_y * wrap;
7f2fe444
MN
1852 s->dc_val[1][xy] =
1853 s->dc_val[2][xy] = 1024;
1854 /* ac pred */
0c1a9eda
ZK
1855 memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t));
1856 memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t));
115329f1 1857
137c8468 1858 s->mbintra_table[xy]= 0;
7f2fe444
MN
1859}
1860
de6d9b64
FB
1861/* generic function called after a macroblock has been parsed by the
1862 decoder or after it has been encoded by the encoder.
1863
1864 Important variables used:
1865 s->mb_intra : true if intra macroblock
1866 s->mv_dir : motion vector direction
1867 s->mv_type : motion vector type
1868 s->mv : motion vector
1869 s->interlaced_dct : true if interlaced dct used (mpeg2)
1870 */
54816a3e 1871static av_always_inline
88bd7fdc 1872void MPV_decode_mb_internal(MpegEncContext *s, int16_t block[12][64],
2bcbd984 1873 int is_mpeg12)
de6d9b64 1874{
7bc9090a 1875 const int mb_xy = s->mb_y * s->mb_stride + s->mb_x;
19e30a58
DB
1876
1877#if FF_API_XVMC
1878FF_DISABLE_DEPRECATION_WARNINGS
83344066 1879 if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){
78f9a878 1880 ff_xvmc_decode_mb(s);//xvmc uses pblocks
2e7b4c84
IK
1881 return;
1882 }
19e30a58
DB
1883FF_ENABLE_DEPRECATION_WARNINGS
1884#endif /* FF_API_XVMC */
de6d9b64 1885
8289c6fa 1886 if(s->avctx->debug&FF_DEBUG_DCT_COEFF) {
759001c5 1887 /* print DCT coefficients */
8289c6fa 1888 int i,j;
c4fb3b03
MN
1889 av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y);
1890 for(i=0; i<6; i++){
1891 for(j=0; j<64; j++){
759001c5 1892 av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]);
c4fb3b03
MN
1893 }
1894 av_log(s->avctx, AV_LOG_DEBUG, "\n");
1895 }
8289c6fa
WH
1896 }
1897
759001c5 1898 s->current_picture.qscale_table[mb_xy] = s->qscale;
79e7b305 1899
de6d9b64
FB
1900 /* update DC predictors for P macroblocks */
1901 if (!s->mb_intra) {
bd7c626a 1902 if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) {
0f440e02 1903 if(s->mbintra_table[mb_xy])
7f2fe444 1904 ff_clean_intra_table_entries(s);
de6d9b64 1905 } else {
7f2fe444
MN
1906 s->last_dc[0] =
1907 s->last_dc[1] =
de6d9b64
FB
1908 s->last_dc[2] = 128 << s->intra_dc_precision;
1909 }
1910 }
bd7c626a 1911 else if (!is_mpeg12 && (s->h263_pred || s->h263_aic))
0f440e02 1912 s->mbintra_table[mb_xy]=1;
bff6ecaa 1913
975a1447 1914 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
0c1a9eda 1915 uint8_t *dest_y, *dest_cb, *dest_cr;
0f440e02 1916 int dct_linesize, dct_offset;
b3184779
MN
1917 op_pixels_func (*op_pix)[4];
1918 qpel_mc_func (*op_qpix)[16];
657ccb5a
DB
1919 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
1920 const int uvlinesize = s->current_picture.f.linesize[1];
2bcbd984
MR
1921 const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band;
1922 const int block_size = 8;
3bb4e23a 1923
1e491e29 1924 /* avoid copy if macroblock skipped in last frame too */
1e491e29
MN
1925 /* skip only during decoding as we might trash the buffers during encoding a bit */
1926 if(!s->encoding){
0c1a9eda 1927 uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy];
1e491e29 1928
160d679c
MM
1929 if (s->mb_skipped) {
1930 s->mb_skipped= 0;
975a1447 1931 assert(s->pict_type!=AV_PICTURE_TYPE_I);
8400b126 1932 *mbskip_ptr = 1;
759001c5 1933 } else if(!s->current_picture.reference) {
8400b126 1934 *mbskip_ptr = 1;
f943e138 1935 } else{
3bb4e23a
FB
1936 *mbskip_ptr = 0; /* not skipped */
1937 }
3994623d 1938 }
115329f1 1939
ffdff4d7 1940 dct_linesize = linesize << s->interlaced_dct;
3dc99a18 1941 dct_offset = s->interlaced_dct ? linesize : linesize * block_size;
115329f1 1942
b68ab260
MN
1943 if(readable){
1944 dest_y= s->dest[0];
1945 dest_cb= s->dest[1];
1946 dest_cr= s->dest[2];
1947 }else{
9c3d33d6 1948 dest_y = s->b_scratchpad;
ae35f5e1 1949 dest_cb= s->b_scratchpad+16*linesize;
ffdff4d7 1950 dest_cr= s->b_scratchpad+32*linesize;
b68ab260 1951 }
178fcca8 1952
de6d9b64
FB
1953 if (!s->mb_intra) {
1954 /* motion handling */
dfb706da 1955 /* decoding or more than one mb_type (MC was already done otherwise) */
7d1c3fc1 1956 if(!s->encoding){
6a9c8594 1957
27237d52 1958 if(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) {
6a9c8594 1959 if (s->mv_dir & MV_DIR_FORWARD) {
759001c5 1960 ff_thread_await_progress(&s->last_picture_ptr->tf,
47c0ac96
DB
1961 ff_MPV_lowest_referenced_row(s, 0),
1962 0);
6a9c8594
AS
1963 }
1964 if (s->mv_dir & MV_DIR_BACKWARD) {
759001c5 1965 ff_thread_await_progress(&s->next_picture_ptr->tf,
47c0ac96
DB
1966 ff_MPV_lowest_referenced_row(s, 1),
1967 0);
6a9c8594
AS
1968 }
1969 }
1970
2bcbd984
MR
1971 op_qpix= s->me.qpel_put;
1972 if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){
f4fed5a2 1973 op_pix = s->hdsp.put_pixels_tab;
178fcca8 1974 }else{
f4fed5a2 1975 op_pix = s->hdsp.put_no_rnd_pixels_tab;
2bcbd984
MR
1976 }
1977 if (s->mv_dir & MV_DIR_FORWARD) {
7a851153 1978 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f.data, op_pix, op_qpix);
f4fed5a2 1979 op_pix = s->hdsp.avg_pixels_tab;
2bcbd984
MR
1980 op_qpix= s->me.qpel_avg;
1981 }
1982 if (s->mv_dir & MV_DIR_BACKWARD) {
7a851153 1983 ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f.data, op_pix, op_qpix);
9dbcbd92 1984 }
de6d9b64
FB
1985 }
1986
0f440e02 1987 /* skip dequant / idct if we are really late ;) */
8c3eba7c 1988 if(s->avctx->skip_idct){
975a1447
SS
1989 if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B)
1990 ||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I)
8c3eba7c
MN
1991 || s->avctx->skip_idct >= AVDISCARD_ALL)
1992 goto skip_idct;
1993 }
0f440e02 1994
de6d9b64 1995 /* add dct residue */
36ef5369
AK
1996 if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO
1997 || (s->codec_id==AV_CODEC_ID_MPEG4 && !s->mpeg_quant))){
178fcca8
MN
1998 add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
1999 add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2000 add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2001 add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
0f440e02 2002
49fb20cb 2003 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2d974017
BC
2004 if (s->chroma_y_shift){
2005 add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2006 add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2007 }else{
2008 dct_linesize >>= 1;
2009 dct_offset >>=1;
2010 add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2011 add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2012 add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
2013 add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
2014 }
b50eef3a 2015 }
36ef5369 2016 } else if(is_mpeg12 || (s->codec_id != AV_CODEC_ID_WMV2)){
178fcca8
MN
2017 add_dct(s, block[0], 0, dest_y , dct_linesize);
2018 add_dct(s, block[1], 1, dest_y + block_size, dct_linesize);
2019 add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize);
2020 add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize);
de6d9b64 2021
49fb20cb 2022 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
ffdff4d7
IK
2023 if(s->chroma_y_shift){//Chroma420
2024 add_dct(s, block[4], 4, dest_cb, uvlinesize);
2025 add_dct(s, block[5], 5, dest_cr, uvlinesize);
2026 }else{
2027 //chroma422
2028 dct_linesize = uvlinesize << s->interlaced_dct;
3dc99a18 2029 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;
ffdff4d7
IK
2030
2031 add_dct(s, block[4], 4, dest_cb, dct_linesize);
2032 add_dct(s, block[5], 5, dest_cr, dct_linesize);
2033 add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize);
2034 add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize);
2035 if(!s->chroma_x_shift){//Chroma444
2036 add_dct(s, block[8], 8, dest_cb+8, dct_linesize);
2037 add_dct(s, block[9], 9, dest_cr+8, dct_linesize);
2038 add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize);
2039 add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize);
2040 }
2041 }
2042 }//fi gray
2043 }
d702a2e6 2044 else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) {
1457ab52 2045 ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr);
0f440e02 2046 }
de6d9b64
FB
2047 } else {
2048 /* dct only in intra block */
36ef5369 2049 if(s->encoding || !(s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO)){
178fcca8
MN
2050 put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale);
2051 put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale);
2052 put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale);
2053 put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale);
a0201736 2054
49fb20cb 2055 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
2d974017
BC
2056 if(s->chroma_y_shift){
2057 put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale);
2058 put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale);
2059 }else{
2060 dct_offset >>=1;
2061 dct_linesize >>=1;
2062 put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale);
2063 put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale);
2064 put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale);
3ada94ba 2065 put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale);
477ab036
MN
2066 }
2067 }
2068 }else{
3ada94ba
BF
2069 s->dsp.idct_put(dest_y , dct_linesize, block[0]);
2070 s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]);
2071 s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]);
2072 s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]);
fbb89806 2073
49fb20cb 2074 if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){
3ada94ba
BF
2075 if(s->chroma_y_shift){
2076 s->dsp.idct_put(dest_cb, uvlinesize, block[4]);
2077 s->dsp.idct_put(dest_cr, uvlinesize, block[5]);
2078 }else{
fbb89806 2079
3ada94ba 2080 dct_linesize = uvlinesize << s->interlaced_dct;
3dc99a18 2081 dct_offset = s->interlaced_dct ? uvlinesize : uvlinesize * 8;
9981dfc6 2082
3ada94ba
BF
2083 s->dsp.idct_put(dest_cb, dct_linesize, block[4]);
2084 s->dsp.idct_put(dest_cr, dct_linesize, block[5]);
2085 s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]);
2086 s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]);
2087 if(!s->chroma_x_shift){//Chroma444
2088 s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]);
2089 s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]);
2090 s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]);
2091 s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]);
2092 }
2093 }
2094 }//gray
9981dfc6 2095 }
477ab036 2096 }
3ada94ba
BF
2097skip_idct:
2098 if(!readable){
f4fed5a2
RB
2099 s->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16);
2100 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift);
2101 s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift);
34f60ee6 2102 }
477ab036 2103 }
477ab036
MN
2104}
2105
88bd7fdc 2106void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){
b250f9c6 2107#if !CONFIG_SMALL
bd7c626a 2108 if(s->out_format == FMT_MPEG1) {
2bcbd984 2109 MPV_decode_mb_internal(s, block, 1);
bd7c626a
KC
2110 } else
2111#endif
2bcbd984 2112 MPV_decode_mb_internal(s, block, 0);
77ea0d4b
MN
2113}
2114
3ada94ba 2115/**
3ada94ba
BF
2116 * @param h is the normal height, this will be reduced automatically if needed for the last row
2117 */
1d0feb5d
AK
2118void ff_draw_horiz_band(AVCodecContext *avctx, DSPContext *dsp, Picture *cur,
2119 Picture *last, int y, int h, int picture_structure,
2120 int first_field, int draw_edges, int low_delay,
2121 int v_edge_pos, int h_edge_pos)
2122{
2123 const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(avctx->pix_fmt);
2124 int hshift = desc->log2_chroma_w;
2125 int vshift = desc->log2_chroma_h;
2126 const int field_pic = picture_structure != PICT_FRAME;
6a9c8594
AS
2127 if(field_pic){
2128 h <<= 1;
2129 y <<= 1;
2130 }
2131
1d0feb5d 2132 if (!avctx->hwaccel &&
1d0feb5d 2133 draw_edges &&
759001c5 2134 cur->reference &&
1d0feb5d
AK
2135 !(avctx->flags & CODEC_FLAG_EMU_EDGE)) {
2136 int *linesize = cur->f.linesize;
6a9c8594
AS
2137 int sides = 0, edge_h;
2138 if (y==0) sides |= EDGE_TOP;
1d0feb5d
AK
2139 if (y + h >= v_edge_pos)
2140 sides |= EDGE_BOTTOM;
6a9c8594 2141
1d0feb5d 2142 edge_h= FFMIN(h, v_edge_pos - y);
6a9c8594 2143
1d0feb5d
AK
2144 dsp->draw_edges(cur->f.data[0] + y * linesize[0],
2145 linesize[0], h_edge_pos, edge_h,
2146 EDGE_WIDTH, EDGE_WIDTH, sides);
2147 dsp->draw_edges(cur->f.data[1] + (y >> vshift) * linesize[1],
2148 linesize[1], h_edge_pos >> hshift, edge_h >> vshift,
2149 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
2150 dsp->draw_edges(cur->f.data[2] + (y >> vshift) * linesize[2],
2151 linesize[2], h_edge_pos >> hshift, edge_h >> vshift,
2152 EDGE_WIDTH >> hshift, EDGE_WIDTH >> vshift, sides);
6a9c8594
AS
2153 }
2154
1d0feb5d 2155 h = FFMIN(h, avctx->height - y);
6a9c8594 2156
1d0feb5d 2157 if(field_pic && first_field && !(avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)) return;
6a9c8594 2158
1d0feb5d 2159 if (avctx->draw_horiz_band) {
3ada94ba 2160 AVFrame *src;
560f773c
JR
2161 int offset[AV_NUM_DATA_POINTERS];
2162 int i;
77ea0d4b 2163
1d0feb5d
AK
2164 if(cur->f.pict_type == AV_PICTURE_TYPE_B || low_delay ||
2165 (avctx->slice_flags & SLICE_FLAG_CODED_ORDER))
2166 src = &cur->f;
2167 else if (last)
2168 src = &last->f;
3ada94ba
BF
2169 else
2170 return;
115329f1 2171
1d0feb5d 2172 if (cur->f.pict_type == AV_PICTURE_TYPE_B &&
19cac8e3 2173 picture_structure == PICT_FRAME &&
1d0feb5d 2174 avctx->codec_id != AV_CODEC_ID_SVQ3) {
560f773c
JR
2175 for (i = 0; i < AV_NUM_DATA_POINTERS; i++)
2176 offset[i] = 0;
77ea0d4b 2177 }else{
1d0feb5d 2178 offset[0]= y * src->linesize[0];
3ada94ba 2179 offset[1]=
1d0feb5d 2180 offset[2]= (y >> vshift) * src->linesize[1];
560f773c
JR
2181 for (i = 3; i < AV_NUM_DATA_POINTERS; i++)
2182 offset[i] = 0;
77ea0d4b 2183 }
115329f1 2184
3ada94ba 2185 emms_c();
77ea0d4b 2186
1d0feb5d
AK
2187 avctx->draw_horiz_band(avctx, src, offset,
2188 y, picture_structure, h);
3ada94ba
BF
2189 }
2190}
115329f1 2191
1d0feb5d
AK
2192void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h)
2193{
2194 int draw_edges = s->unrestricted_mv && !s->intra_only;
2195 ff_draw_horiz_band(s->avctx, &s->dsp, &s->current_picture,
2196 &s->last_picture, y, h, s->picture_structure,
2197 s->first_field, draw_edges, s->low_delay,
2198 s->v_edge_pos, s->h_edge_pos);
2199}
2200
3ada94ba 2201void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename
657ccb5a
DB
2202 const int linesize = s->current_picture.f.linesize[0]; //not s->linesize as this would be wrong for field pics
2203 const int uvlinesize = s->current_picture.f.linesize[1];
2bcbd984 2204 const int mb_size= 4;
77ea0d4b 2205
3ada94ba
BF
2206 s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2;
2207 s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2;
2208 s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2;
2209 s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2;
2210 s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1;
2211 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;
2212 //block_index is not used by mpeg2, so it is not affected by chroma_format
115329f1 2213
657ccb5a
DB
2214 s->dest[0] = s->current_picture.f.data[0] + ((s->mb_x - 1) << mb_size);
2215 s->dest[1] = s->current_picture.f.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
2216 s->dest[2] = s->current_picture.f.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift));
115329f1 2217
975a1447 2218 if(!(s->pict_type==AV_PICTURE_TYPE_B && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME))
3ada94ba 2219 {
078cdecf 2220 if(s->picture_structure==PICT_FRAME){
3ada94ba
BF
2221 s->dest[0] += s->mb_y * linesize << mb_size;
2222 s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
2223 s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift);
078cdecf
MN
2224 }else{
2225 s->dest[0] += (s->mb_y>>1) * linesize << mb_size;
2226 s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2227 s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift);
2228 assert((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD));
2229 }
77ea0d4b 2230 }
77ea0d4b 2231}
115329f1 2232
0b016eb9
DB
2233/**
2234 * Permute an 8x8 block.
2235 * @param block the block which will be permuted according to the given permutation vector
2236 * @param permutation the permutation vector
2237 * @param last the last non zero coefficient in scantable order, used to speed the permutation up
2238 * @param scantable the used scantable, this is only used to speed the permutation up, the block is not
2239 * (inverse) permutated to scantable order!
2240 */
2241void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last)
2242{
2243 int i;
2244 int16_t temp[64];
2245
2246 if(last<=0) return;
2247 //if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations
2248
2249 for(i=0; i<=last; i++){
2250 const int j= scantable[i];
2251 temp[j]= block[j];
2252 block[j]=0;
2253 }
2254
2255 for(i=0; i<=last; i++){
2256 const int j= scantable[i];
2257 const int perm_j= permutation[j];
2258 block[perm_j]= temp[j];
2259 }
2260}
2261
3ada94ba
BF
2262void ff_mpeg_flush(AVCodecContext *avctx){
2263 int i;
2264 MpegEncContext *s = avctx->priv_data;
77ea0d4b 2265
3ada94ba
BF
2266 if(s==NULL || s->picture==NULL)
2267 return;
77ea0d4b 2268
759001c5
AK
2269 for (i = 0; i < MAX_PICTURE_COUNT; i++)
2270 ff_mpeg_unref_picture(s, &s->picture[i]);
3ada94ba 2271 s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL;
115329f1 2272
feec9349
HL
2273 ff_mpeg_unref_picture(s, &s->current_picture);
2274 ff_mpeg_unref_picture(s, &s->last_picture);
2275 ff_mpeg_unref_picture(s, &s->next_picture);
2276
3ada94ba 2277 s->mb_x= s->mb_y= 0;
7801d21d 2278
3ada94ba
BF
2279 s->parse_context.state= -1;
2280 s->parse_context.frame_start_found= 0;
2281 s->parse_context.overread= 0;
2282 s->parse_context.overread_index= 0;
2283 s->parse_context.index= 0;
2284 s->parse_context.last_index= 0;
2285 s->bitstream_buffer_size=0;
2286 s->pp_time=0;
de6d9b64
FB
2287}
2288
115329f1 2289static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s,
88bd7fdc 2290 int16_t *block, int n, int qscale)
de6d9b64 2291{
badaf88e 2292 int i, level, nCoeffs;
0c1a9eda 2293 const uint16_t *quant_matrix;
de6d9b64 2294
2ad1516a 2295 nCoeffs= s->block_last_index[n];
115329f1
DB
2296
2297 if (n < 4)
d50635cd
MN
2298 block[0] = block[0] * s->y_dc_scale;
2299 else
2300 block[0] = block[0] * s->c_dc_scale;
2301 /* XXX: only mpeg1 */
2302 quant_matrix = s->intra_matrix;
2303 for(i=1;i<=nCoeffs;i++) {
2304 int j= s->intra_scantable.permutated[i];
2305 level = block[j];
2306 if (level) {
2307 if (level < 0) {
2308 level = -level;
2309 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2310 level = (level - 1) | 1;
2311 level = -level;
2312 } else {
2313 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2314 level = (level - 1) | 1;
de6d9b64 2315 }
d50635cd 2316 block[j] = level;
de6d9b64 2317 }
d50635cd
MN
2318 }
2319}
2320
115329f1 2321static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s,
88bd7fdc 2322 int16_t *block, int n, int qscale)
d50635cd
MN
2323{
2324 int i, level, nCoeffs;
2325 const uint16_t *quant_matrix;
2326
2327 nCoeffs= s->block_last_index[n];
115329f1 2328
d50635cd
MN
2329 quant_matrix = s->inter_matrix;
2330 for(i=0; i<=nCoeffs; i++) {
2331 int j= s->intra_scantable.permutated[i];
2332 level = block[j];
2333 if (level) {
2334 if (level < 0) {
2335 level = -level;
2336 level = (((level << 1) + 1) * qscale *
2337 ((int) (quant_matrix[j]))) >> 4;
2338 level = (level - 1) | 1;
2339 level = -level;
2340 } else {
2341 level = (((level << 1) + 1) * qscale *
2342 ((int) (quant_matrix[j]))) >> 4;
2343 level = (level - 1) | 1;
de6d9b64 2344 }
d50635cd 2345 block[j] = level;
de6d9b64
FB
2346 }
2347 }
2348}
21af69f7 2349
115329f1 2350static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s,
88bd7fdc 2351 int16_t *block, int n, int qscale)
9dbf1ddd
MN
2352{
2353 int i, level, nCoeffs;
0c1a9eda 2354 const uint16_t *quant_matrix;
9dbf1ddd 2355
2ad1516a
MN
2356 if(s->alternate_scan) nCoeffs= 63;
2357 else nCoeffs= s->block_last_index[n];
115329f1
DB
2358
2359 if (n < 4)
d50635cd
MN
2360 block[0] = block[0] * s->y_dc_scale;
2361 else
2362 block[0] = block[0] * s->c_dc_scale;
2363 quant_matrix = s->intra_matrix;
2364 for(i=1;i<=nCoeffs;i++) {
2365 int j= s->intra_scantable.permutated[i];
2366 level = block[j];
2367 if (level) {
2368 if (level < 0) {
2369 level = -level;
2370 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2371 level = -level;
2372 } else {
2373 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2374 }
2375 block[j] = level;
2376 }
2377 }
2378}
2379
e27b6e62 2380static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s,
88bd7fdc 2381 int16_t *block, int n, int qscale)
e27b6e62
MN
2382{
2383 int i, level, nCoeffs;
2384 const uint16_t *quant_matrix;
2385 int sum=-1;
2386
2387 if(s->alternate_scan) nCoeffs= 63;
2388 else nCoeffs= s->block_last_index[n];
2389
2390 if (n < 4)
2391 block[0] = block[0] * s->y_dc_scale;
2392 else
2393 block[0] = block[0] * s->c_dc_scale;
2394 quant_matrix = s->intra_matrix;
2395 for(i=1;i<=nCoeffs;i++) {
2396 int j= s->intra_scantable.permutated[i];
2397 level = block[j];
2398 if (level) {
2399 if (level < 0) {
2400 level = -level;
2401 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2402 level = -level;
2403 } else {
2404 level = (int)(level * qscale * quant_matrix[j]) >> 3;
2405 }
2406 block[j] = level;
2407 sum+=level;
2408 }
2409 }
2410 block[63]^=sum&1;
2411}
2412
115329f1 2413static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s,
88bd7fdc 2414 int16_t *block, int n, int qscale)
d50635cd
MN
2415{
2416 int i, level, nCoeffs;
2417 const uint16_t *quant_matrix;
2418 int sum=-1;
2419
2420 if(s->alternate_scan) nCoeffs= 63;
2421 else nCoeffs= s->block_last_index[n];
115329f1 2422
d50635cd
MN
2423 quant_matrix = s->inter_matrix;
2424 for(i=0; i<=nCoeffs; i++) {
2425 int j= s->intra_scantable.permutated[i];
2426 level = block[j];
2427 if (level) {
2428 if (level < 0) {
2429 level = -level;
2430 level = (((level << 1) + 1) * qscale *
2431 ((int) (quant_matrix[j]))) >> 4;
2432 level = -level;
2433 } else {
2434 level = (((level << 1) + 1) * qscale *
2435 ((int) (quant_matrix[j]))) >> 4;
2436 }
2437 block[j] = level;
2438 sum+=level;
2439 }
2440 }
2441 block[63]^=sum&1;
2442}
2443
115329f1 2444static void dct_unquantize_h263_intra_c(MpegEncContext *s,
88bd7fdc 2445 int16_t *block, int n, int qscale)
d50635cd
MN
2446{
2447 int i, level, qmul, qadd;
2448 int nCoeffs;
115329f1 2449
d50635cd 2450 assert(s->block_last_index[n]>=0);
115329f1 2451
d50635cd 2452 qmul = qscale << 1;
115329f1 2453
d50635cd 2454 if (!s->h263_aic) {
115329f1 2455 if (n < 4)
9dbf1ddd
MN
2456 block[0] = block[0] * s->y_dc_scale;
2457 else
2458 block[0] = block[0] * s->c_dc_scale;
d50635cd
MN
2459 qadd = (qscale - 1) | 1;
2460 }else{
2461 qadd = 0;
2462 }
2463 if(s->ac_pred)
2464 nCoeffs=63;
2465 else
2466 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
2467
2468 for(i=1; i<=nCoeffs; i++) {
2469 level = block[i];
2470 if (level) {
2471 if (level < 0) {
2472 level = level * qmul - qadd;
2473 } else {
2474 level = level * qmul + qadd;
9dbf1ddd 2475 }
d50635cd 2476 block[i] = level;
9dbf1ddd 2477 }
9dbf1ddd
MN
2478 }
2479}
2480
115329f1 2481static void dct_unquantize_h263_inter_c(MpegEncContext *s,
88bd7fdc 2482 int16_t *block, int n, int qscale)
21af69f7
FB
2483{
2484 int i, level, qmul, qadd;
badaf88e 2485 int nCoeffs;
115329f1 2486
2ad1516a 2487 assert(s->block_last_index[n]>=0);
115329f1 2488
2ad1516a
MN
2489 qadd = (qscale - 1) | 1;
2490 qmul = qscale << 1;
115329f1 2491
d50635cd 2492 nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ];
21af69f7 2493
d50635cd 2494 for(i=0; i<=nCoeffs; i++) {
21af69f7
FB
2495 level = block[i];
2496 if (level) {
2497 if (level < 0) {
2498 level = level * qmul - qadd;
2499 } else {
2500 level = level * qmul + qadd;
2501 }
21af69f7
FB
2502 block[i] = level;
2503 }
2504 }
2505}
de6d9b64 2506
b776e3d1
AJ
2507/**
2508 * set qscale and update qscale dependent variables.
2509 */
2510void ff_set_qscale(MpegEncContext * s, int qscale)
2511{
2512 if (qscale < 1)
2513 qscale = 1;
2514 else if (qscale > 31)
2515 qscale = 31;
2516
2517 s->qscale = qscale;
2518 s->chroma_qscale= s->chroma_qscale_table[qscale];
2519
2520 s->y_dc_scale= s->y_dc_scale_table[ qscale ];
2521 s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ];
2522}
6a9c8594 2523
efd29844 2524void ff_MPV_report_decode_progress(MpegEncContext *s)
6a9c8594 2525{
54974c62 2526 if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred)
759001c5 2527 ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0);
6a9c8594 2528}
54974c62 2529
d88738e4 2530#if CONFIG_ERROR_RESILIENCE
54974c62
AK
2531void ff_mpeg_er_frame_start(MpegEncContext *s)
2532{
2533 ERContext *er = &s->er;
2534
2535 er->cur_pic = s->current_picture_ptr;
2536 er->last_pic = s->last_picture_ptr;
2537 er->next_pic = s->next_picture_ptr;
2538
2539 er->pp_time = s->pp_time;
2540 er->pb_time = s->pb_time;
2541 er->quarter_sample = s->quarter_sample;
2542 er->partitioned_frame = s->partitioned_frame;
2543
2544 ff_er_frame_start(er);
2545}
d88738e4 2546#endif /* CONFIG_ERROR_RESILIENCE */