| 1 | /* |
| 2 | * H.26L/H.264/AVC/JVT/14496-10/... decoder |
| 3 | * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
| 4 | * |
| 5 | * This file is part of FFmpeg. |
| 6 | * |
| 7 | * FFmpeg is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU Lesser General Public |
| 9 | * License as published by the Free Software Foundation; either |
| 10 | * version 2.1 of the License, or (at your option) any later version. |
| 11 | * |
| 12 | * FFmpeg is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 15 | * Lesser General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU Lesser General Public |
| 18 | * License along with FFmpeg; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 20 | */ |
| 21 | |
| 22 | /** |
| 23 | * @file |
| 24 | * H.264 / AVC / MPEG4 part10 codec. |
| 25 | * @author Michael Niedermayer <michaelni@gmx.at> |
| 26 | */ |
| 27 | |
| 28 | #include "libavutil/avassert.h" |
| 29 | #include "libavutil/imgutils.h" |
| 30 | #include "libavutil/timer.h" |
| 31 | #include "internal.h" |
| 32 | #include "cabac.h" |
| 33 | #include "cabac_functions.h" |
| 34 | #include "error_resilience.h" |
| 35 | #include "avcodec.h" |
| 36 | #include "h264.h" |
| 37 | #include "h264data.h" |
| 38 | #include "h264chroma.h" |
| 39 | #include "h264_mvpred.h" |
| 40 | #include "golomb.h" |
| 41 | #include "mathops.h" |
| 42 | #include "mpegutils.h" |
| 43 | #include "rectangle.h" |
| 44 | #include "thread.h" |
| 45 | |
| 46 | |
| 47 | static const uint8_t rem6[QP_MAX_NUM + 1] = { |
| 48 | 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, |
| 49 | 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, |
| 50 | 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, |
| 51 | 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, |
| 52 | 0, 1, 2, 3, |
| 53 | }; |
| 54 | |
| 55 | static const uint8_t div6[QP_MAX_NUM + 1] = { |
| 56 | 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, |
| 57 | 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, |
| 58 | 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, |
| 59 | 10,10,10,11,11,11,11,11,11,12,12,12,12,12,12,13,13,13, 13, 13, 13, |
| 60 | 14,14,14,14, |
| 61 | }; |
| 62 | |
| 63 | static const uint8_t field_scan[16+1] = { |
| 64 | 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4, |
| 65 | 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4, |
| 66 | 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4, |
| 67 | 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4, |
| 68 | }; |
| 69 | |
| 70 | static const uint8_t field_scan8x8[64+1] = { |
| 71 | 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8, |
| 72 | 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8, |
| 73 | 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8, |
| 74 | 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8, |
| 75 | 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8, |
| 76 | 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8, |
| 77 | 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8, |
| 78 | 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8, |
| 79 | 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8, |
| 80 | 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8, |
| 81 | 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8, |
| 82 | 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8, |
| 83 | 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8, |
| 84 | 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8, |
| 85 | 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8, |
| 86 | 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8, |
| 87 | }; |
| 88 | |
| 89 | static const uint8_t field_scan8x8_cavlc[64+1] = { |
| 90 | 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8, |
| 91 | 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8, |
| 92 | 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8, |
| 93 | 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8, |
| 94 | 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8, |
| 95 | 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8, |
| 96 | 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8, |
| 97 | 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8, |
| 98 | 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8, |
| 99 | 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8, |
| 100 | 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8, |
| 101 | 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8, |
| 102 | 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8, |
| 103 | 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8, |
| 104 | 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8, |
| 105 | 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8, |
| 106 | }; |
| 107 | |
| 108 | // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)] |
| 109 | static const uint8_t zigzag_scan8x8_cavlc[64+1] = { |
| 110 | 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8, |
| 111 | 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8, |
| 112 | 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8, |
| 113 | 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8, |
| 114 | 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8, |
| 115 | 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8, |
| 116 | 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8, |
| 117 | 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8, |
| 118 | 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8, |
| 119 | 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8, |
| 120 | 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8, |
| 121 | 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8, |
| 122 | 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8, |
| 123 | 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8, |
| 124 | 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8, |
| 125 | 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8, |
| 126 | }; |
| 127 | |
| 128 | static const uint8_t dequant4_coeff_init[6][3] = { |
| 129 | { 10, 13, 16 }, |
| 130 | { 11, 14, 18 }, |
| 131 | { 13, 16, 20 }, |
| 132 | { 14, 18, 23 }, |
| 133 | { 16, 20, 25 }, |
| 134 | { 18, 23, 29 }, |
| 135 | }; |
| 136 | |
| 137 | static const uint8_t dequant8_coeff_init_scan[16] = { |
| 138 | 0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1 |
| 139 | }; |
| 140 | |
| 141 | static const uint8_t dequant8_coeff_init[6][6] = { |
| 142 | { 20, 18, 32, 19, 25, 24 }, |
| 143 | { 22, 19, 35, 21, 28, 26 }, |
| 144 | { 26, 23, 42, 24, 33, 31 }, |
| 145 | { 28, 25, 45, 26, 35, 33 }, |
| 146 | { 32, 28, 51, 30, 40, 38 }, |
| 147 | { 36, 32, 58, 34, 46, 43 }, |
| 148 | }; |
| 149 | |
| 150 | static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = { |
| 151 | #if CONFIG_H264_DXVA2_HWACCEL |
| 152 | AV_PIX_FMT_DXVA2_VLD, |
| 153 | #endif |
| 154 | #if CONFIG_H264_VAAPI_HWACCEL |
| 155 | AV_PIX_FMT_VAAPI_VLD, |
| 156 | #endif |
| 157 | #if CONFIG_H264_VDA_HWACCEL |
| 158 | AV_PIX_FMT_VDA_VLD, |
| 159 | AV_PIX_FMT_VDA, |
| 160 | #endif |
| 161 | #if CONFIG_H264_VDPAU_HWACCEL |
| 162 | AV_PIX_FMT_VDPAU, |
| 163 | #endif |
| 164 | AV_PIX_FMT_YUV420P, |
| 165 | AV_PIX_FMT_NONE |
| 166 | }; |
| 167 | |
| 168 | static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = { |
| 169 | #if CONFIG_H264_DXVA2_HWACCEL |
| 170 | AV_PIX_FMT_DXVA2_VLD, |
| 171 | #endif |
| 172 | #if CONFIG_H264_VAAPI_HWACCEL |
| 173 | AV_PIX_FMT_VAAPI_VLD, |
| 174 | #endif |
| 175 | #if CONFIG_H264_VDA_HWACCEL |
| 176 | AV_PIX_FMT_VDA_VLD, |
| 177 | AV_PIX_FMT_VDA, |
| 178 | #endif |
| 179 | #if CONFIG_H264_VDPAU_HWACCEL |
| 180 | AV_PIX_FMT_VDPAU, |
| 181 | #endif |
| 182 | AV_PIX_FMT_YUVJ420P, |
| 183 | AV_PIX_FMT_NONE |
| 184 | }; |
| 185 | |
| 186 | |
| 187 | static void release_unused_pictures(H264Context *h, int remove_current) |
| 188 | { |
| 189 | int i; |
| 190 | |
| 191 | /* release non reference frames */ |
| 192 | for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
| 193 | if (h->DPB[i].f.buf[0] && !h->DPB[i].reference && |
| 194 | (remove_current || &h->DPB[i] != h->cur_pic_ptr)) { |
| 195 | ff_h264_unref_picture(h, &h->DPB[i]); |
| 196 | } |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | static int alloc_scratch_buffers(H264Context *h, int linesize) |
| 201 | { |
| 202 | int alloc_size = FFALIGN(FFABS(linesize) + 32, 32); |
| 203 | |
| 204 | if (h->bipred_scratchpad) |
| 205 | return 0; |
| 206 | |
| 207 | h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size); |
| 208 | // edge emu needs blocksize + filter length - 1 |
| 209 | // (= 21x21 for h264) |
| 210 | h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21); |
| 211 | |
| 212 | if (!h->bipred_scratchpad || !h->edge_emu_buffer) { |
| 213 | av_freep(&h->bipred_scratchpad); |
| 214 | av_freep(&h->edge_emu_buffer); |
| 215 | return AVERROR(ENOMEM); |
| 216 | } |
| 217 | |
| 218 | return 0; |
| 219 | } |
| 220 | |
| 221 | static int init_table_pools(H264Context *h) |
| 222 | { |
| 223 | const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1; |
| 224 | const int mb_array_size = h->mb_stride * h->mb_height; |
| 225 | const int b4_stride = h->mb_width * 4 + 1; |
| 226 | const int b4_array_size = b4_stride * h->mb_height * 4; |
| 227 | |
| 228 | h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride, |
| 229 | av_buffer_allocz); |
| 230 | h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) * |
| 231 | sizeof(uint32_t), av_buffer_allocz); |
| 232 | h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) * |
| 233 | sizeof(int16_t), av_buffer_allocz); |
| 234 | h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz); |
| 235 | |
| 236 | if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool || |
| 237 | !h->ref_index_pool) { |
| 238 | av_buffer_pool_uninit(&h->qscale_table_pool); |
| 239 | av_buffer_pool_uninit(&h->mb_type_pool); |
| 240 | av_buffer_pool_uninit(&h->motion_val_pool); |
| 241 | av_buffer_pool_uninit(&h->ref_index_pool); |
| 242 | return AVERROR(ENOMEM); |
| 243 | } |
| 244 | |
| 245 | return 0; |
| 246 | } |
| 247 | |
| 248 | static int alloc_picture(H264Context *h, H264Picture *pic) |
| 249 | { |
| 250 | int i, ret = 0; |
| 251 | |
| 252 | av_assert0(!pic->f.data[0]); |
| 253 | |
| 254 | pic->tf.f = &pic->f; |
| 255 | ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ? |
| 256 | AV_GET_BUFFER_FLAG_REF : 0); |
| 257 | if (ret < 0) |
| 258 | goto fail; |
| 259 | |
| 260 | h->linesize = pic->f.linesize[0]; |
| 261 | h->uvlinesize = pic->f.linesize[1]; |
| 262 | pic->crop = h->sps.crop; |
| 263 | pic->crop_top = h->sps.crop_top; |
| 264 | pic->crop_left= h->sps.crop_left; |
| 265 | |
| 266 | if (h->avctx->hwaccel) { |
| 267 | const AVHWAccel *hwaccel = h->avctx->hwaccel; |
| 268 | av_assert0(!pic->hwaccel_picture_private); |
| 269 | if (hwaccel->frame_priv_data_size) { |
| 270 | pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size); |
| 271 | if (!pic->hwaccel_priv_buf) |
| 272 | return AVERROR(ENOMEM); |
| 273 | pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data; |
| 274 | } |
| 275 | } |
| 276 | if (!h->avctx->hwaccel && CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY && pic->f.data[2]) { |
| 277 | int h_chroma_shift, v_chroma_shift; |
| 278 | av_pix_fmt_get_chroma_sub_sample(pic->f.format, |
| 279 | &h_chroma_shift, &v_chroma_shift); |
| 280 | |
| 281 | for(i=0; i<FF_CEIL_RSHIFT(h->avctx->height, v_chroma_shift); i++) { |
| 282 | memset(pic->f.data[1] + pic->f.linesize[1]*i, |
| 283 | 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift)); |
| 284 | memset(pic->f.data[2] + pic->f.linesize[2]*i, |
| 285 | 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift)); |
| 286 | } |
| 287 | } |
| 288 | |
| 289 | if (!h->qscale_table_pool) { |
| 290 | ret = init_table_pools(h); |
| 291 | if (ret < 0) |
| 292 | goto fail; |
| 293 | } |
| 294 | |
| 295 | pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool); |
| 296 | pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool); |
| 297 | if (!pic->qscale_table_buf || !pic->mb_type_buf) |
| 298 | goto fail; |
| 299 | |
| 300 | pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1; |
| 301 | pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1; |
| 302 | |
| 303 | for (i = 0; i < 2; i++) { |
| 304 | pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool); |
| 305 | pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool); |
| 306 | if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) |
| 307 | goto fail; |
| 308 | |
| 309 | pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4; |
| 310 | pic->ref_index[i] = pic->ref_index_buf[i]->data; |
| 311 | } |
| 312 | |
| 313 | return 0; |
| 314 | fail: |
| 315 | ff_h264_unref_picture(h, pic); |
| 316 | return (ret < 0) ? ret : AVERROR(ENOMEM); |
| 317 | } |
| 318 | |
| 319 | static inline int pic_is_unused(H264Context *h, H264Picture *pic) |
| 320 | { |
| 321 | if (!pic->f.buf[0]) |
| 322 | return 1; |
| 323 | if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF)) |
| 324 | return 1; |
| 325 | return 0; |
| 326 | } |
| 327 | |
| 328 | static int find_unused_picture(H264Context *h) |
| 329 | { |
| 330 | int i; |
| 331 | |
| 332 | for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
| 333 | if (pic_is_unused(h, &h->DPB[i])) |
| 334 | break; |
| 335 | } |
| 336 | if (i == H264_MAX_PICTURE_COUNT) |
| 337 | return AVERROR_INVALIDDATA; |
| 338 | |
| 339 | if (h->DPB[i].needs_realloc) { |
| 340 | h->DPB[i].needs_realloc = 0; |
| 341 | ff_h264_unref_picture(h, &h->DPB[i]); |
| 342 | } |
| 343 | |
| 344 | return i; |
| 345 | } |
| 346 | |
| 347 | |
| 348 | static void init_dequant8_coeff_table(H264Context *h) |
| 349 | { |
| 350 | int i, j, q, x; |
| 351 | const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8); |
| 352 | |
| 353 | for (i = 0; i < 6; i++) { |
| 354 | h->dequant8_coeff[i] = h->dequant8_buffer[i]; |
| 355 | for (j = 0; j < i; j++) |
| 356 | if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], |
| 357 | 64 * sizeof(uint8_t))) { |
| 358 | h->dequant8_coeff[i] = h->dequant8_buffer[j]; |
| 359 | break; |
| 360 | } |
| 361 | if (j < i) |
| 362 | continue; |
| 363 | |
| 364 | for (q = 0; q < max_qp + 1; q++) { |
| 365 | int shift = div6[q]; |
| 366 | int idx = rem6[q]; |
| 367 | for (x = 0; x < 64; x++) |
| 368 | h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] = |
| 369 | ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] * |
| 370 | h->pps.scaling_matrix8[i][x]) << shift; |
| 371 | } |
| 372 | } |
| 373 | } |
| 374 | |
| 375 | static void init_dequant4_coeff_table(H264Context *h) |
| 376 | { |
| 377 | int i, j, q, x; |
| 378 | const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8); |
| 379 | for (i = 0; i < 6; i++) { |
| 380 | h->dequant4_coeff[i] = h->dequant4_buffer[i]; |
| 381 | for (j = 0; j < i; j++) |
| 382 | if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], |
| 383 | 16 * sizeof(uint8_t))) { |
| 384 | h->dequant4_coeff[i] = h->dequant4_buffer[j]; |
| 385 | break; |
| 386 | } |
| 387 | if (j < i) |
| 388 | continue; |
| 389 | |
| 390 | for (q = 0; q < max_qp + 1; q++) { |
| 391 | int shift = div6[q] + 2; |
| 392 | int idx = rem6[q]; |
| 393 | for (x = 0; x < 16; x++) |
| 394 | h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] = |
| 395 | ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] * |
| 396 | h->pps.scaling_matrix4[i][x]) << shift; |
| 397 | } |
| 398 | } |
| 399 | } |
| 400 | |
| 401 | void h264_init_dequant_tables(H264Context *h) |
| 402 | { |
| 403 | int i, x; |
| 404 | init_dequant4_coeff_table(h); |
| 405 | memset(h->dequant8_coeff, 0, sizeof(h->dequant8_coeff)); |
| 406 | |
| 407 | if (h->pps.transform_8x8_mode) |
| 408 | init_dequant8_coeff_table(h); |
| 409 | if (h->sps.transform_bypass) { |
| 410 | for (i = 0; i < 6; i++) |
| 411 | for (x = 0; x < 16; x++) |
| 412 | h->dequant4_coeff[i][0][x] = 1 << 6; |
| 413 | if (h->pps.transform_8x8_mode) |
| 414 | for (i = 0; i < 6; i++) |
| 415 | for (x = 0; x < 64; x++) |
| 416 | h->dequant8_coeff[i][0][x] = 1 << 6; |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | /** |
| 421 | * Mimic alloc_tables(), but for every context thread. |
| 422 | */ |
| 423 | static void clone_tables(H264Context *dst, H264Context *src, int i) |
| 424 | { |
| 425 | dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride; |
| 426 | dst->non_zero_count = src->non_zero_count; |
| 427 | dst->slice_table = src->slice_table; |
| 428 | dst->cbp_table = src->cbp_table; |
| 429 | dst->mb2b_xy = src->mb2b_xy; |
| 430 | dst->mb2br_xy = src->mb2br_xy; |
| 431 | dst->chroma_pred_mode_table = src->chroma_pred_mode_table; |
| 432 | dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride; |
| 433 | dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride; |
| 434 | dst->direct_table = src->direct_table; |
| 435 | dst->list_counts = src->list_counts; |
| 436 | dst->DPB = src->DPB; |
| 437 | dst->cur_pic_ptr = src->cur_pic_ptr; |
| 438 | dst->cur_pic = src->cur_pic; |
| 439 | dst->bipred_scratchpad = NULL; |
| 440 | dst->edge_emu_buffer = NULL; |
| 441 | ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma, |
| 442 | src->sps.chroma_format_idc); |
| 443 | } |
| 444 | |
| 445 | #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size)))) |
| 446 | #undef REBASE_PICTURE |
| 447 | #define REBASE_PICTURE(pic, new_ctx, old_ctx) \ |
| 448 | (((pic) && (pic) >= (old_ctx)->DPB && \ |
| 449 | (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \ |
| 450 | &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL) |
| 451 | |
| 452 | static void copy_picture_range(H264Picture **to, H264Picture **from, int count, |
| 453 | H264Context *new_base, |
| 454 | H264Context *old_base) |
| 455 | { |
| 456 | int i; |
| 457 | |
| 458 | for (i = 0; i < count; i++) { |
| 459 | assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) || |
| 460 | IN_RANGE(from[i], old_base->DPB, |
| 461 | sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) || |
| 462 | !from[i])); |
| 463 | to[i] = REBASE_PICTURE(from[i], new_base, old_base); |
| 464 | } |
| 465 | } |
| 466 | |
| 467 | static int copy_parameter_set(void **to, void **from, int count, int size) |
| 468 | { |
| 469 | int i; |
| 470 | |
| 471 | for (i = 0; i < count; i++) { |
| 472 | if (to[i] && !from[i]) { |
| 473 | av_freep(&to[i]); |
| 474 | } else if (from[i] && !to[i]) { |
| 475 | to[i] = av_malloc(size); |
| 476 | if (!to[i]) |
| 477 | return AVERROR(ENOMEM); |
| 478 | } |
| 479 | |
| 480 | if (from[i]) |
| 481 | memcpy(to[i], from[i], size); |
| 482 | } |
| 483 | |
| 484 | return 0; |
| 485 | } |
| 486 | |
| 487 | #define copy_fields(to, from, start_field, end_field) \ |
| 488 | memcpy(&(to)->start_field, &(from)->start_field, \ |
| 489 | (char *)&(to)->end_field - (char *)&(to)->start_field) |
| 490 | |
| 491 | static int h264_slice_header_init(H264Context *h, int reinit); |
| 492 | |
| 493 | int ff_h264_update_thread_context(AVCodecContext *dst, |
| 494 | const AVCodecContext *src) |
| 495 | { |
| 496 | H264Context *h = dst->priv_data, *h1 = src->priv_data; |
| 497 | int inited = h->context_initialized, err = 0; |
| 498 | int context_reinitialized = 0; |
| 499 | int i, ret; |
| 500 | |
| 501 | if (dst == src) |
| 502 | return 0; |
| 503 | |
| 504 | if (inited && |
| 505 | (h->width != h1->width || |
| 506 | h->height != h1->height || |
| 507 | h->mb_width != h1->mb_width || |
| 508 | h->mb_height != h1->mb_height || |
| 509 | h->sps.bit_depth_luma != h1->sps.bit_depth_luma || |
| 510 | h->sps.chroma_format_idc != h1->sps.chroma_format_idc || |
| 511 | h->sps.colorspace != h1->sps.colorspace)) { |
| 512 | |
| 513 | /* set bits_per_raw_sample to the previous value. the check for changed |
| 514 | * bit depth in h264_set_parameter_from_sps() uses it and sets it to |
| 515 | * the current value */ |
| 516 | h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma; |
| 517 | |
| 518 | av_freep(&h->bipred_scratchpad); |
| 519 | |
| 520 | h->width = h1->width; |
| 521 | h->height = h1->height; |
| 522 | h->mb_height = h1->mb_height; |
| 523 | h->mb_width = h1->mb_width; |
| 524 | h->mb_num = h1->mb_num; |
| 525 | h->mb_stride = h1->mb_stride; |
| 526 | h->b_stride = h1->b_stride; |
| 527 | // SPS/PPS |
| 528 | if ((ret = copy_parameter_set((void **)h->sps_buffers, |
| 529 | (void **)h1->sps_buffers, |
| 530 | MAX_SPS_COUNT, sizeof(SPS))) < 0) |
| 531 | return ret; |
| 532 | h->sps = h1->sps; |
| 533 | if ((ret = copy_parameter_set((void **)h->pps_buffers, |
| 534 | (void **)h1->pps_buffers, |
| 535 | MAX_PPS_COUNT, sizeof(PPS))) < 0) |
| 536 | return ret; |
| 537 | h->pps = h1->pps; |
| 538 | |
| 539 | if ((err = h264_slice_header_init(h, 1)) < 0) { |
| 540 | av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed\n"); |
| 541 | return err; |
| 542 | } |
| 543 | context_reinitialized = 1; |
| 544 | |
| 545 | #if 0 |
| 546 | h264_set_parameter_from_sps(h); |
| 547 | //Note we set context_reinitialized which will cause h264_set_parameter_from_sps to be reexecuted |
| 548 | h->cur_chroma_format_idc = h1->cur_chroma_format_idc; |
| 549 | #endif |
| 550 | } |
| 551 | /* update linesize on resize for h264. The h264 decoder doesn't |
| 552 | * necessarily call ff_mpv_frame_start in the new thread */ |
| 553 | h->linesize = h1->linesize; |
| 554 | h->uvlinesize = h1->uvlinesize; |
| 555 | |
| 556 | /* copy block_offset since frame_start may not be called */ |
| 557 | memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset)); |
| 558 | |
| 559 | if (!inited) { |
| 560 | for (i = 0; i < MAX_SPS_COUNT; i++) |
| 561 | av_freep(h->sps_buffers + i); |
| 562 | |
| 563 | for (i = 0; i < MAX_PPS_COUNT; i++) |
| 564 | av_freep(h->pps_buffers + i); |
| 565 | |
| 566 | av_freep(&h->rbsp_buffer[0]); |
| 567 | av_freep(&h->rbsp_buffer[1]); |
| 568 | memcpy(h, h1, offsetof(H264Context, intra_pcm_ptr)); |
| 569 | memcpy(&h->cabac, &h1->cabac, |
| 570 | sizeof(H264Context) - offsetof(H264Context, cabac)); |
| 571 | av_assert0((void*)&h->cabac == &h->mb_padding + 1); |
| 572 | |
| 573 | memset(h->sps_buffers, 0, sizeof(h->sps_buffers)); |
| 574 | memset(h->pps_buffers, 0, sizeof(h->pps_buffers)); |
| 575 | |
| 576 | memset(&h->er, 0, sizeof(h->er)); |
| 577 | memset(&h->mb, 0, sizeof(h->mb)); |
| 578 | memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc)); |
| 579 | memset(&h->mb_padding, 0, sizeof(h->mb_padding)); |
| 580 | memset(&h->cur_pic, 0, sizeof(h->cur_pic)); |
| 581 | |
| 582 | h->avctx = dst; |
| 583 | h->DPB = NULL; |
| 584 | h->qscale_table_pool = NULL; |
| 585 | h->mb_type_pool = NULL; |
| 586 | h->ref_index_pool = NULL; |
| 587 | h->motion_val_pool = NULL; |
| 588 | h->intra4x4_pred_mode= NULL; |
| 589 | h->non_zero_count = NULL; |
| 590 | h->slice_table_base = NULL; |
| 591 | h->slice_table = NULL; |
| 592 | h->cbp_table = NULL; |
| 593 | h->chroma_pred_mode_table = NULL; |
| 594 | memset(h->mvd_table, 0, sizeof(h->mvd_table)); |
| 595 | h->direct_table = NULL; |
| 596 | h->list_counts = NULL; |
| 597 | h->mb2b_xy = NULL; |
| 598 | h->mb2br_xy = NULL; |
| 599 | for (i = 0; i < 2; i++) { |
| 600 | h->rbsp_buffer[i] = NULL; |
| 601 | h->rbsp_buffer_size[i] = 0; |
| 602 | } |
| 603 | |
| 604 | if (h1->context_initialized) { |
| 605 | h->context_initialized = 0; |
| 606 | |
| 607 | memset(&h->cur_pic, 0, sizeof(h->cur_pic)); |
| 608 | av_frame_unref(&h->cur_pic.f); |
| 609 | h->cur_pic.tf.f = &h->cur_pic.f; |
| 610 | |
| 611 | ret = ff_h264_alloc_tables(h); |
| 612 | if (ret < 0) { |
| 613 | av_log(dst, AV_LOG_ERROR, "Could not allocate memory\n"); |
| 614 | return ret; |
| 615 | } |
| 616 | ret = ff_h264_context_init(h); |
| 617 | if (ret < 0) { |
| 618 | av_log(dst, AV_LOG_ERROR, "context_init() failed.\n"); |
| 619 | return ret; |
| 620 | } |
| 621 | } |
| 622 | |
| 623 | h->bipred_scratchpad = NULL; |
| 624 | h->edge_emu_buffer = NULL; |
| 625 | |
| 626 | h->thread_context[0] = h; |
| 627 | h->context_initialized = h1->context_initialized; |
| 628 | } |
| 629 | |
| 630 | h->avctx->coded_height = h1->avctx->coded_height; |
| 631 | h->avctx->coded_width = h1->avctx->coded_width; |
| 632 | h->avctx->width = h1->avctx->width; |
| 633 | h->avctx->height = h1->avctx->height; |
| 634 | h->coded_picture_number = h1->coded_picture_number; |
| 635 | h->first_field = h1->first_field; |
| 636 | h->picture_structure = h1->picture_structure; |
| 637 | h->qscale = h1->qscale; |
| 638 | h->droppable = h1->droppable; |
| 639 | h->low_delay = h1->low_delay; |
| 640 | |
| 641 | for (i = 0; h->DPB && i < H264_MAX_PICTURE_COUNT; i++) { |
| 642 | ff_h264_unref_picture(h, &h->DPB[i]); |
| 643 | if (h1->DPB && h1->DPB[i].f.buf[0] && |
| 644 | (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0) |
| 645 | return ret; |
| 646 | } |
| 647 | |
| 648 | h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1); |
| 649 | ff_h264_unref_picture(h, &h->cur_pic); |
| 650 | if (h1->cur_pic.f.buf[0] && (ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0) |
| 651 | return ret; |
| 652 | |
| 653 | h->workaround_bugs = h1->workaround_bugs; |
| 654 | h->low_delay = h1->low_delay; |
| 655 | h->droppable = h1->droppable; |
| 656 | |
| 657 | // extradata/NAL handling |
| 658 | h->is_avc = h1->is_avc; |
| 659 | |
| 660 | // SPS/PPS |
| 661 | if ((ret = copy_parameter_set((void **)h->sps_buffers, |
| 662 | (void **)h1->sps_buffers, |
| 663 | MAX_SPS_COUNT, sizeof(SPS))) < 0) |
| 664 | return ret; |
| 665 | h->sps = h1->sps; |
| 666 | if ((ret = copy_parameter_set((void **)h->pps_buffers, |
| 667 | (void **)h1->pps_buffers, |
| 668 | MAX_PPS_COUNT, sizeof(PPS))) < 0) |
| 669 | return ret; |
| 670 | h->pps = h1->pps; |
| 671 | |
| 672 | // Dequantization matrices |
| 673 | // FIXME these are big - can they be only copied when PPS changes? |
| 674 | copy_fields(h, h1, dequant4_buffer, dequant4_coeff); |
| 675 | |
| 676 | for (i = 0; i < 6; i++) |
| 677 | h->dequant4_coeff[i] = h->dequant4_buffer[0] + |
| 678 | (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]); |
| 679 | |
| 680 | for (i = 0; i < 6; i++) |
| 681 | h->dequant8_coeff[i] = h->dequant8_buffer[0] + |
| 682 | (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]); |
| 683 | |
| 684 | h->dequant_coeff_pps = h1->dequant_coeff_pps; |
| 685 | |
| 686 | // POC timing |
| 687 | copy_fields(h, h1, poc_lsb, redundant_pic_count); |
| 688 | |
| 689 | // reference lists |
| 690 | copy_fields(h, h1, short_ref, cabac_init_idc); |
| 691 | |
| 692 | copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1); |
| 693 | copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1); |
| 694 | copy_picture_range(h->delayed_pic, h1->delayed_pic, |
| 695 | MAX_DELAYED_PIC_COUNT + 2, h, h1); |
| 696 | |
| 697 | h->frame_recovered = h1->frame_recovered; |
| 698 | |
| 699 | if (context_reinitialized) |
| 700 | ff_h264_set_parameter_from_sps(h); |
| 701 | |
| 702 | if (!h->cur_pic_ptr) |
| 703 | return 0; |
| 704 | |
| 705 | if (!h->droppable) { |
| 706 | err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
| 707 | h->prev_poc_msb = h->poc_msb; |
| 708 | h->prev_poc_lsb = h->poc_lsb; |
| 709 | } |
| 710 | h->prev_frame_num_offset = h->frame_num_offset; |
| 711 | h->prev_frame_num = h->frame_num; |
| 712 | h->outputed_poc = h->next_outputed_poc; |
| 713 | |
| 714 | h->recovery_frame = h1->recovery_frame; |
| 715 | |
| 716 | return err; |
| 717 | } |
| 718 | |
| 719 | static int h264_frame_start(H264Context *h) |
| 720 | { |
| 721 | H264Picture *pic; |
| 722 | int i, ret; |
| 723 | const int pixel_shift = h->pixel_shift; |
| 724 | int c[4] = { |
| 725 | 1<<(h->sps.bit_depth_luma-1), |
| 726 | 1<<(h->sps.bit_depth_chroma-1), |
| 727 | 1<<(h->sps.bit_depth_chroma-1), |
| 728 | -1 |
| 729 | }; |
| 730 | |
| 731 | if (!ff_thread_can_start_frame(h->avctx)) { |
| 732 | av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n"); |
| 733 | return -1; |
| 734 | } |
| 735 | |
| 736 | release_unused_pictures(h, 1); |
| 737 | h->cur_pic_ptr = NULL; |
| 738 | |
| 739 | i = find_unused_picture(h); |
| 740 | if (i < 0) { |
| 741 | av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
| 742 | return i; |
| 743 | } |
| 744 | pic = &h->DPB[i]; |
| 745 | |
| 746 | pic->reference = h->droppable ? 0 : h->picture_structure; |
| 747 | pic->f.coded_picture_number = h->coded_picture_number++; |
| 748 | pic->field_picture = h->picture_structure != PICT_FRAME; |
| 749 | |
| 750 | /* |
| 751 | * Zero key_frame here; IDR markings per slice in frame or fields are ORed |
| 752 | * in later. |
| 753 | * See decode_nal_units(). |
| 754 | */ |
| 755 | pic->f.key_frame = 0; |
| 756 | pic->mmco_reset = 0; |
| 757 | pic->recovered = 0; |
| 758 | pic->invalid_gap = 0; |
| 759 | pic->sei_recovery_frame_cnt = h->sei_recovery_frame_cnt; |
| 760 | |
| 761 | if ((ret = alloc_picture(h, pic)) < 0) |
| 762 | return ret; |
| 763 | if(!h->frame_recovered && !h->avctx->hwaccel && |
| 764 | !(h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) |
| 765 | avpriv_color_frame(&pic->f, c); |
| 766 | |
| 767 | h->cur_pic_ptr = pic; |
| 768 | ff_h264_unref_picture(h, &h->cur_pic); |
| 769 | if (CONFIG_ERROR_RESILIENCE) { |
| 770 | ff_h264_set_erpic(&h->er.cur_pic, NULL); |
| 771 | } |
| 772 | |
| 773 | if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0) |
| 774 | return ret; |
| 775 | |
| 776 | if (CONFIG_ERROR_RESILIENCE) { |
| 777 | ff_er_frame_start(&h->er); |
| 778 | ff_h264_set_erpic(&h->er.last_pic, NULL); |
| 779 | ff_h264_set_erpic(&h->er.next_pic, NULL); |
| 780 | } |
| 781 | |
| 782 | assert(h->linesize && h->uvlinesize); |
| 783 | |
| 784 | for (i = 0; i < 16; i++) { |
| 785 | h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3); |
| 786 | h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3); |
| 787 | } |
| 788 | for (i = 0; i < 16; i++) { |
| 789 | h->block_offset[16 + i] = |
| 790 | h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3); |
| 791 | h->block_offset[48 + 16 + i] = |
| 792 | h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3); |
| 793 | } |
| 794 | |
| 795 | /* We mark the current picture as non-reference after allocating it, so |
| 796 | * that if we break out due to an error it can be released automatically |
| 797 | * in the next ff_mpv_frame_start(). |
| 798 | */ |
| 799 | h->cur_pic_ptr->reference = 0; |
| 800 | |
| 801 | h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX; |
| 802 | |
| 803 | h->next_output_pic = NULL; |
| 804 | |
| 805 | assert(h->cur_pic_ptr->long_ref == 0); |
| 806 | |
| 807 | return 0; |
| 808 | } |
| 809 | |
| 810 | static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y, |
| 811 | uint8_t *src_cb, uint8_t *src_cr, |
| 812 | int linesize, int uvlinesize, |
| 813 | int simple) |
| 814 | { |
| 815 | uint8_t *top_border; |
| 816 | int top_idx = 1; |
| 817 | const int pixel_shift = h->pixel_shift; |
| 818 | int chroma444 = CHROMA444(h); |
| 819 | int chroma422 = CHROMA422(h); |
| 820 | |
| 821 | src_y -= linesize; |
| 822 | src_cb -= uvlinesize; |
| 823 | src_cr -= uvlinesize; |
| 824 | |
| 825 | if (!simple && FRAME_MBAFF(h)) { |
| 826 | if (h->mb_y & 1) { |
| 827 | if (!MB_MBAFF(h)) { |
| 828 | top_border = h->top_borders[0][h->mb_x]; |
| 829 | AV_COPY128(top_border, src_y + 15 * linesize); |
| 830 | if (pixel_shift) |
| 831 | AV_COPY128(top_border + 16, src_y + 15 * linesize + 16); |
| 832 | if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
| 833 | if (chroma444) { |
| 834 | if (pixel_shift) { |
| 835 | AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize); |
| 836 | AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16); |
| 837 | AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize); |
| 838 | AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16); |
| 839 | } else { |
| 840 | AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize); |
| 841 | AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize); |
| 842 | } |
| 843 | } else if (chroma422) { |
| 844 | if (pixel_shift) { |
| 845 | AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize); |
| 846 | AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize); |
| 847 | } else { |
| 848 | AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize); |
| 849 | AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize); |
| 850 | } |
| 851 | } else { |
| 852 | if (pixel_shift) { |
| 853 | AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize); |
| 854 | AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize); |
| 855 | } else { |
| 856 | AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize); |
| 857 | AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize); |
| 858 | } |
| 859 | } |
| 860 | } |
| 861 | } |
| 862 | } else if (MB_MBAFF(h)) { |
| 863 | top_idx = 0; |
| 864 | } else |
| 865 | return; |
| 866 | } |
| 867 | |
| 868 | top_border = h->top_borders[top_idx][h->mb_x]; |
| 869 | /* There are two lines saved, the line above the top macroblock |
| 870 | * of a pair, and the line above the bottom macroblock. */ |
| 871 | AV_COPY128(top_border, src_y + 16 * linesize); |
| 872 | if (pixel_shift) |
| 873 | AV_COPY128(top_border + 16, src_y + 16 * linesize + 16); |
| 874 | |
| 875 | if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
| 876 | if (chroma444) { |
| 877 | if (pixel_shift) { |
| 878 | AV_COPY128(top_border + 32, src_cb + 16 * linesize); |
| 879 | AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16); |
| 880 | AV_COPY128(top_border + 64, src_cr + 16 * linesize); |
| 881 | AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16); |
| 882 | } else { |
| 883 | AV_COPY128(top_border + 16, src_cb + 16 * linesize); |
| 884 | AV_COPY128(top_border + 32, src_cr + 16 * linesize); |
| 885 | } |
| 886 | } else if (chroma422) { |
| 887 | if (pixel_shift) { |
| 888 | AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize); |
| 889 | AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize); |
| 890 | } else { |
| 891 | AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize); |
| 892 | AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize); |
| 893 | } |
| 894 | } else { |
| 895 | if (pixel_shift) { |
| 896 | AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize); |
| 897 | AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize); |
| 898 | } else { |
| 899 | AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize); |
| 900 | AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize); |
| 901 | } |
| 902 | } |
| 903 | } |
| 904 | } |
| 905 | |
| 906 | /** |
| 907 | * Initialize implicit_weight table. |
| 908 | * @param field 0/1 initialize the weight for interlaced MBAFF |
| 909 | * -1 initializes the rest |
| 910 | */ |
| 911 | static void implicit_weight_table(H264Context *h, int field) |
| 912 | { |
| 913 | int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1; |
| 914 | |
| 915 | for (i = 0; i < 2; i++) { |
| 916 | h->luma_weight_flag[i] = 0; |
| 917 | h->chroma_weight_flag[i] = 0; |
| 918 | } |
| 919 | |
| 920 | if (field < 0) { |
| 921 | if (h->picture_structure == PICT_FRAME) { |
| 922 | cur_poc = h->cur_pic_ptr->poc; |
| 923 | } else { |
| 924 | cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1]; |
| 925 | } |
| 926 | if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) && |
| 927 | h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) { |
| 928 | h->use_weight = 0; |
| 929 | h->use_weight_chroma = 0; |
| 930 | return; |
| 931 | } |
| 932 | ref_start = 0; |
| 933 | ref_count0 = h->ref_count[0]; |
| 934 | ref_count1 = h->ref_count[1]; |
| 935 | } else { |
| 936 | cur_poc = h->cur_pic_ptr->field_poc[field]; |
| 937 | ref_start = 16; |
| 938 | ref_count0 = 16 + 2 * h->ref_count[0]; |
| 939 | ref_count1 = 16 + 2 * h->ref_count[1]; |
| 940 | } |
| 941 | |
| 942 | h->use_weight = 2; |
| 943 | h->use_weight_chroma = 2; |
| 944 | h->luma_log2_weight_denom = 5; |
| 945 | h->chroma_log2_weight_denom = 5; |
| 946 | |
| 947 | for (ref0 = ref_start; ref0 < ref_count0; ref0++) { |
| 948 | int poc0 = h->ref_list[0][ref0].poc; |
| 949 | for (ref1 = ref_start; ref1 < ref_count1; ref1++) { |
| 950 | int w = 32; |
| 951 | if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) { |
| 952 | int poc1 = h->ref_list[1][ref1].poc; |
| 953 | int td = av_clip(poc1 - poc0, -128, 127); |
| 954 | if (td) { |
| 955 | int tb = av_clip(cur_poc - poc0, -128, 127); |
| 956 | int tx = (16384 + (FFABS(td) >> 1)) / td; |
| 957 | int dist_scale_factor = (tb * tx + 32) >> 8; |
| 958 | if (dist_scale_factor >= -64 && dist_scale_factor <= 128) |
| 959 | w = 64 - dist_scale_factor; |
| 960 | } |
| 961 | } |
| 962 | if (field < 0) { |
| 963 | h->implicit_weight[ref0][ref1][0] = |
| 964 | h->implicit_weight[ref0][ref1][1] = w; |
| 965 | } else { |
| 966 | h->implicit_weight[ref0][ref1][field] = w; |
| 967 | } |
| 968 | } |
| 969 | } |
| 970 | } |
| 971 | |
| 972 | /** |
| 973 | * initialize scan tables |
| 974 | */ |
| 975 | static void init_scan_tables(H264Context *h) |
| 976 | { |
| 977 | int i; |
| 978 | for (i = 0; i < 16; i++) { |
| 979 | #define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF) |
| 980 | h->zigzag_scan[i] = TRANSPOSE(zigzag_scan[i]); |
| 981 | h->field_scan[i] = TRANSPOSE(field_scan[i]); |
| 982 | #undef TRANSPOSE |
| 983 | } |
| 984 | for (i = 0; i < 64; i++) { |
| 985 | #define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3) |
| 986 | h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]); |
| 987 | h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]); |
| 988 | h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]); |
| 989 | h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]); |
| 990 | #undef TRANSPOSE |
| 991 | } |
| 992 | if (h->sps.transform_bypass) { // FIXME same ugly |
| 993 | memcpy(h->zigzag_scan_q0 , zigzag_scan , sizeof(h->zigzag_scan_q0 )); |
| 994 | memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 )); |
| 995 | memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0)); |
| 996 | memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 )); |
| 997 | memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 )); |
| 998 | memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 )); |
| 999 | } else { |
| 1000 | memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 )); |
| 1001 | memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 )); |
| 1002 | memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0)); |
| 1003 | memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 )); |
| 1004 | memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 )); |
| 1005 | memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 )); |
| 1006 | } |
| 1007 | } |
| 1008 | |
| 1009 | /** |
| 1010 | * Replicate H264 "master" context to thread contexts. |
| 1011 | */ |
| 1012 | static int clone_slice(H264Context *dst, H264Context *src) |
| 1013 | { |
| 1014 | memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset)); |
| 1015 | dst->cur_pic_ptr = src->cur_pic_ptr; |
| 1016 | dst->cur_pic = src->cur_pic; |
| 1017 | dst->linesize = src->linesize; |
| 1018 | dst->uvlinesize = src->uvlinesize; |
| 1019 | dst->first_field = src->first_field; |
| 1020 | |
| 1021 | dst->prev_poc_msb = src->prev_poc_msb; |
| 1022 | dst->prev_poc_lsb = src->prev_poc_lsb; |
| 1023 | dst->prev_frame_num_offset = src->prev_frame_num_offset; |
| 1024 | dst->prev_frame_num = src->prev_frame_num; |
| 1025 | dst->short_ref_count = src->short_ref_count; |
| 1026 | |
| 1027 | memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref)); |
| 1028 | memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref)); |
| 1029 | memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list)); |
| 1030 | |
| 1031 | memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff)); |
| 1032 | memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff)); |
| 1033 | |
| 1034 | return 0; |
| 1035 | } |
| 1036 | |
| 1037 | static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback) |
| 1038 | { |
| 1039 | enum AVPixelFormat pix_fmts[2]; |
| 1040 | const enum AVPixelFormat *choices = pix_fmts; |
| 1041 | int i; |
| 1042 | |
| 1043 | pix_fmts[1] = AV_PIX_FMT_NONE; |
| 1044 | |
| 1045 | switch (h->sps.bit_depth_luma) { |
| 1046 | case 9: |
| 1047 | if (CHROMA444(h)) { |
| 1048 | if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| 1049 | pix_fmts[0] = AV_PIX_FMT_GBRP9; |
| 1050 | } else |
| 1051 | pix_fmts[0] = AV_PIX_FMT_YUV444P9; |
| 1052 | } else if (CHROMA422(h)) |
| 1053 | pix_fmts[0] = AV_PIX_FMT_YUV422P9; |
| 1054 | else |
| 1055 | pix_fmts[0] = AV_PIX_FMT_YUV420P9; |
| 1056 | break; |
| 1057 | case 10: |
| 1058 | if (CHROMA444(h)) { |
| 1059 | if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| 1060 | pix_fmts[0] = AV_PIX_FMT_GBRP10; |
| 1061 | } else |
| 1062 | pix_fmts[0] = AV_PIX_FMT_YUV444P10; |
| 1063 | } else if (CHROMA422(h)) |
| 1064 | pix_fmts[0] = AV_PIX_FMT_YUV422P10; |
| 1065 | else |
| 1066 | pix_fmts[0] = AV_PIX_FMT_YUV420P10; |
| 1067 | break; |
| 1068 | case 12: |
| 1069 | if (CHROMA444(h)) { |
| 1070 | if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| 1071 | pix_fmts[0] = AV_PIX_FMT_GBRP12; |
| 1072 | } else |
| 1073 | pix_fmts[0] = AV_PIX_FMT_YUV444P12; |
| 1074 | } else if (CHROMA422(h)) |
| 1075 | pix_fmts[0] = AV_PIX_FMT_YUV422P12; |
| 1076 | else |
| 1077 | pix_fmts[0] = AV_PIX_FMT_YUV420P12; |
| 1078 | break; |
| 1079 | case 14: |
| 1080 | if (CHROMA444(h)) { |
| 1081 | if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| 1082 | pix_fmts[0] = AV_PIX_FMT_GBRP14; |
| 1083 | } else |
| 1084 | pix_fmts[0] = AV_PIX_FMT_YUV444P14; |
| 1085 | } else if (CHROMA422(h)) |
| 1086 | pix_fmts[0] = AV_PIX_FMT_YUV422P14; |
| 1087 | else |
| 1088 | pix_fmts[0] = AV_PIX_FMT_YUV420P14; |
| 1089 | break; |
| 1090 | case 8: |
| 1091 | if (CHROMA444(h)) { |
| 1092 | if (h->avctx->colorspace == AVCOL_SPC_YCGCO) |
| 1093 | av_log(h->avctx, AV_LOG_WARNING, "Detected unsupported YCgCo colorspace.\n"); |
| 1094 | if (h->avctx->colorspace == AVCOL_SPC_RGB) |
| 1095 | pix_fmts[0] = AV_PIX_FMT_GBRP; |
| 1096 | else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| 1097 | pix_fmts[0] = AV_PIX_FMT_YUVJ444P; |
| 1098 | else |
| 1099 | pix_fmts[0] = AV_PIX_FMT_YUV444P; |
| 1100 | } else if (CHROMA422(h)) { |
| 1101 | if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| 1102 | pix_fmts[0] = AV_PIX_FMT_YUVJ422P; |
| 1103 | else |
| 1104 | pix_fmts[0] = AV_PIX_FMT_YUV422P; |
| 1105 | } else { |
| 1106 | if (h->avctx->codec->pix_fmts) |
| 1107 | choices = h->avctx->codec->pix_fmts; |
| 1108 | else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| 1109 | choices = h264_hwaccel_pixfmt_list_jpeg_420; |
| 1110 | else |
| 1111 | choices = h264_hwaccel_pixfmt_list_420; |
| 1112 | } |
| 1113 | break; |
| 1114 | default: |
| 1115 | av_log(h->avctx, AV_LOG_ERROR, |
| 1116 | "Unsupported bit depth %d\n", h->sps.bit_depth_luma); |
| 1117 | return AVERROR_INVALIDDATA; |
| 1118 | } |
| 1119 | |
| 1120 | for (i=0; choices[i] != AV_PIX_FMT_NONE; i++) |
| 1121 | if (choices[i] == h->avctx->pix_fmt && !force_callback) |
| 1122 | return choices[i]; |
| 1123 | return ff_thread_get_format(h->avctx, choices); |
| 1124 | } |
| 1125 | |
| 1126 | /* export coded and cropped frame dimensions to AVCodecContext */ |
| 1127 | static int init_dimensions(H264Context *h) |
| 1128 | { |
| 1129 | int width = h->width - (h->sps.crop_right + h->sps.crop_left); |
| 1130 | int height = h->height - (h->sps.crop_top + h->sps.crop_bottom); |
| 1131 | int crop_present = h->sps.crop_left || h->sps.crop_top || |
| 1132 | h->sps.crop_right || h->sps.crop_bottom; |
| 1133 | av_assert0(h->sps.crop_right + h->sps.crop_left < (unsigned)h->width); |
| 1134 | av_assert0(h->sps.crop_top + h->sps.crop_bottom < (unsigned)h->height); |
| 1135 | |
| 1136 | /* handle container cropping */ |
| 1137 | if (!crop_present && |
| 1138 | FFALIGN(h->avctx->width, 16) == h->width && |
| 1139 | FFALIGN(h->avctx->height, 16) == h->height) { |
| 1140 | width = h->avctx->width; |
| 1141 | height = h->avctx->height; |
| 1142 | } |
| 1143 | |
| 1144 | if (width <= 0 || height <= 0) { |
| 1145 | av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n", |
| 1146 | width, height); |
| 1147 | if (h->avctx->err_recognition & AV_EF_EXPLODE) |
| 1148 | return AVERROR_INVALIDDATA; |
| 1149 | |
| 1150 | av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n"); |
| 1151 | h->sps.crop_bottom = |
| 1152 | h->sps.crop_top = |
| 1153 | h->sps.crop_right = |
| 1154 | h->sps.crop_left = |
| 1155 | h->sps.crop = 0; |
| 1156 | |
| 1157 | width = h->width; |
| 1158 | height = h->height; |
| 1159 | } |
| 1160 | |
| 1161 | h->avctx->coded_width = h->width; |
| 1162 | h->avctx->coded_height = h->height; |
| 1163 | h->avctx->width = width; |
| 1164 | h->avctx->height = height; |
| 1165 | |
| 1166 | return 0; |
| 1167 | } |
| 1168 | |
| 1169 | static int h264_slice_header_init(H264Context *h, int reinit) |
| 1170 | { |
| 1171 | int nb_slices = (HAVE_THREADS && |
| 1172 | h->avctx->active_thread_type & FF_THREAD_SLICE) ? |
| 1173 | h->avctx->thread_count : 1; |
| 1174 | int i, ret; |
| 1175 | |
| 1176 | ff_set_sar(h->avctx, h->sps.sar); |
| 1177 | av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt, |
| 1178 | &h->chroma_x_shift, &h->chroma_y_shift); |
| 1179 | |
| 1180 | if (h->sps.timing_info_present_flag) { |
| 1181 | int64_t den = h->sps.time_scale; |
| 1182 | if (h->x264_build < 44U) |
| 1183 | den *= 2; |
| 1184 | av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num, |
| 1185 | h->sps.num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30); |
| 1186 | } |
| 1187 | |
| 1188 | if (reinit) |
| 1189 | ff_h264_free_tables(h, 0); |
| 1190 | h->first_field = 0; |
| 1191 | h->prev_interlaced_frame = 1; |
| 1192 | |
| 1193 | init_scan_tables(h); |
| 1194 | ret = ff_h264_alloc_tables(h); |
| 1195 | if (ret < 0) { |
| 1196 | av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n"); |
| 1197 | goto fail; |
| 1198 | } |
| 1199 | |
| 1200 | if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) { |
| 1201 | int max_slices; |
| 1202 | if (h->mb_height) |
| 1203 | max_slices = FFMIN(H264_MAX_THREADS, h->mb_height); |
| 1204 | else |
| 1205 | max_slices = H264_MAX_THREADS; |
| 1206 | av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d," |
| 1207 | " reducing to %d\n", nb_slices, max_slices); |
| 1208 | nb_slices = max_slices; |
| 1209 | } |
| 1210 | h->slice_context_count = nb_slices; |
| 1211 | |
| 1212 | if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) { |
| 1213 | ret = ff_h264_context_init(h); |
| 1214 | if (ret < 0) { |
| 1215 | av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
| 1216 | goto fail; |
| 1217 | } |
| 1218 | } else { |
| 1219 | for (i = 1; i < h->slice_context_count; i++) { |
| 1220 | H264Context *c; |
| 1221 | c = h->thread_context[i] = av_mallocz(sizeof(H264Context)); |
| 1222 | if (!c) { |
| 1223 | ret = AVERROR(ENOMEM); |
| 1224 | goto fail; |
| 1225 | } |
| 1226 | c->avctx = h->avctx; |
| 1227 | if (CONFIG_ERROR_RESILIENCE) { |
| 1228 | c->mecc = h->mecc; |
| 1229 | } |
| 1230 | c->vdsp = h->vdsp; |
| 1231 | c->h264dsp = h->h264dsp; |
| 1232 | c->h264qpel = h->h264qpel; |
| 1233 | c->h264chroma = h->h264chroma; |
| 1234 | c->sps = h->sps; |
| 1235 | c->pps = h->pps; |
| 1236 | c->pixel_shift = h->pixel_shift; |
| 1237 | c->cur_chroma_format_idc = h->cur_chroma_format_idc; |
| 1238 | c->width = h->width; |
| 1239 | c->height = h->height; |
| 1240 | c->linesize = h->linesize; |
| 1241 | c->uvlinesize = h->uvlinesize; |
| 1242 | c->chroma_x_shift = h->chroma_x_shift; |
| 1243 | c->chroma_y_shift = h->chroma_y_shift; |
| 1244 | c->qscale = h->qscale; |
| 1245 | c->droppable = h->droppable; |
| 1246 | c->data_partitioning = h->data_partitioning; |
| 1247 | c->low_delay = h->low_delay; |
| 1248 | c->mb_width = h->mb_width; |
| 1249 | c->mb_height = h->mb_height; |
| 1250 | c->mb_stride = h->mb_stride; |
| 1251 | c->mb_num = h->mb_num; |
| 1252 | c->flags = h->flags; |
| 1253 | c->workaround_bugs = h->workaround_bugs; |
| 1254 | c->pict_type = h->pict_type; |
| 1255 | |
| 1256 | init_scan_tables(c); |
| 1257 | clone_tables(c, h, i); |
| 1258 | c->context_initialized = 1; |
| 1259 | } |
| 1260 | |
| 1261 | for (i = 0; i < h->slice_context_count; i++) |
| 1262 | if ((ret = ff_h264_context_init(h->thread_context[i])) < 0) { |
| 1263 | av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
| 1264 | goto fail; |
| 1265 | } |
| 1266 | } |
| 1267 | |
| 1268 | h->context_initialized = 1; |
| 1269 | |
| 1270 | return 0; |
| 1271 | fail: |
| 1272 | ff_h264_free_tables(h, 0); |
| 1273 | h->context_initialized = 0; |
| 1274 | return ret; |
| 1275 | } |
| 1276 | |
| 1277 | static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a) |
| 1278 | { |
| 1279 | switch (a) { |
| 1280 | case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P; |
| 1281 | case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P; |
| 1282 | case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P; |
| 1283 | default: |
| 1284 | return a; |
| 1285 | } |
| 1286 | } |
| 1287 | |
| 1288 | /** |
| 1289 | * Decode a slice header. |
| 1290 | * This will (re)intialize the decoder and call h264_frame_start() as needed. |
| 1291 | * |
| 1292 | * @param h h264context |
| 1293 | * @param h0 h264 master context (differs from 'h' when doing sliced based |
| 1294 | * parallel decoding) |
| 1295 | * |
| 1296 | * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded |
| 1297 | */ |
| 1298 | int ff_h264_decode_slice_header(H264Context *h, H264Context *h0) |
| 1299 | { |
| 1300 | unsigned int first_mb_in_slice; |
| 1301 | unsigned int pps_id; |
| 1302 | int ret; |
| 1303 | unsigned int slice_type, tmp, i, j; |
| 1304 | int last_pic_structure, last_pic_droppable; |
| 1305 | int must_reinit; |
| 1306 | int needs_reinit = 0; |
| 1307 | int field_pic_flag, bottom_field_flag; |
| 1308 | |
| 1309 | h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab; |
| 1310 | h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab; |
| 1311 | |
| 1312 | first_mb_in_slice = get_ue_golomb_long(&h->gb); |
| 1313 | |
| 1314 | if (first_mb_in_slice == 0) { // FIXME better field boundary detection |
| 1315 | if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) { |
| 1316 | ff_h264_field_end(h, 1); |
| 1317 | } |
| 1318 | |
| 1319 | h0->current_slice = 0; |
| 1320 | if (!h0->first_field) { |
| 1321 | if (h->cur_pic_ptr && !h->droppable) { |
| 1322 | ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, |
| 1323 | h->picture_structure == PICT_BOTTOM_FIELD); |
| 1324 | } |
| 1325 | h->cur_pic_ptr = NULL; |
| 1326 | } |
| 1327 | } |
| 1328 | |
| 1329 | slice_type = get_ue_golomb_31(&h->gb); |
| 1330 | if (slice_type > 9) { |
| 1331 | av_log(h->avctx, AV_LOG_ERROR, |
| 1332 | "slice type %d too large at %d %d\n", |
| 1333 | slice_type, h->mb_x, h->mb_y); |
| 1334 | return AVERROR_INVALIDDATA; |
| 1335 | } |
| 1336 | if (slice_type > 4) { |
| 1337 | slice_type -= 5; |
| 1338 | h->slice_type_fixed = 1; |
| 1339 | } else |
| 1340 | h->slice_type_fixed = 0; |
| 1341 | |
| 1342 | slice_type = golomb_to_pict_type[slice_type]; |
| 1343 | h->slice_type = slice_type; |
| 1344 | h->slice_type_nos = slice_type & 3; |
| 1345 | |
| 1346 | if (h->nal_unit_type == NAL_IDR_SLICE && |
| 1347 | h->slice_type_nos != AV_PICTURE_TYPE_I) { |
| 1348 | av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n"); |
| 1349 | return AVERROR_INVALIDDATA; |
| 1350 | } |
| 1351 | |
| 1352 | if ( |
| 1353 | (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) || |
| 1354 | (h->avctx->skip_frame >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B) || |
| 1355 | (h->avctx->skip_frame >= AVDISCARD_NONINTRA && h->slice_type_nos != AV_PICTURE_TYPE_I) || |
| 1356 | (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != NAL_IDR_SLICE) || |
| 1357 | h->avctx->skip_frame >= AVDISCARD_ALL) { |
| 1358 | return SLICE_SKIPED; |
| 1359 | } |
| 1360 | |
| 1361 | // to make a few old functions happy, it's wrong though |
| 1362 | h->pict_type = h->slice_type; |
| 1363 | |
| 1364 | pps_id = get_ue_golomb(&h->gb); |
| 1365 | if (pps_id >= MAX_PPS_COUNT) { |
| 1366 | av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id); |
| 1367 | return AVERROR_INVALIDDATA; |
| 1368 | } |
| 1369 | if (!h0->pps_buffers[pps_id]) { |
| 1370 | av_log(h->avctx, AV_LOG_ERROR, |
| 1371 | "non-existing PPS %u referenced\n", |
| 1372 | pps_id); |
| 1373 | return AVERROR_INVALIDDATA; |
| 1374 | } |
| 1375 | if (h0->au_pps_id >= 0 && pps_id != h0->au_pps_id) { |
| 1376 | av_log(h->avctx, AV_LOG_ERROR, |
| 1377 | "PPS change from %d to %d forbidden\n", |
| 1378 | h0->au_pps_id, pps_id); |
| 1379 | return AVERROR_INVALIDDATA; |
| 1380 | } |
| 1381 | h->pps = *h0->pps_buffers[pps_id]; |
| 1382 | |
| 1383 | if (!h0->sps_buffers[h->pps.sps_id]) { |
| 1384 | av_log(h->avctx, AV_LOG_ERROR, |
| 1385 | "non-existing SPS %u referenced\n", |
| 1386 | h->pps.sps_id); |
| 1387 | return AVERROR_INVALIDDATA; |
| 1388 | } |
| 1389 | |
| 1390 | if (h->pps.sps_id != h->sps.sps_id || |
| 1391 | h->pps.sps_id != h->current_sps_id || |
| 1392 | h0->sps_buffers[h->pps.sps_id]->new) { |
| 1393 | |
| 1394 | h->sps = *h0->sps_buffers[h->pps.sps_id]; |
| 1395 | |
| 1396 | if (h->mb_width != h->sps.mb_width || |
| 1397 | h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) || |
| 1398 | h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma || |
| 1399 | h->cur_chroma_format_idc != h->sps.chroma_format_idc |
| 1400 | ) |
| 1401 | needs_reinit = 1; |
| 1402 | |
| 1403 | if (h->bit_depth_luma != h->sps.bit_depth_luma || |
| 1404 | h->chroma_format_idc != h->sps.chroma_format_idc) { |
| 1405 | h->bit_depth_luma = h->sps.bit_depth_luma; |
| 1406 | h->chroma_format_idc = h->sps.chroma_format_idc; |
| 1407 | needs_reinit = 1; |
| 1408 | } |
| 1409 | if ((ret = ff_h264_set_parameter_from_sps(h)) < 0) |
| 1410 | return ret; |
| 1411 | } |
| 1412 | |
| 1413 | h->avctx->profile = ff_h264_get_profile(&h->sps); |
| 1414 | h->avctx->level = h->sps.level_idc; |
| 1415 | h->avctx->refs = h->sps.ref_frame_count; |
| 1416 | |
| 1417 | must_reinit = (h->context_initialized && |
| 1418 | ( 16*h->sps.mb_width != h->avctx->coded_width |
| 1419 | || 16*h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) != h->avctx->coded_height |
| 1420 | || h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma |
| 1421 | || h->cur_chroma_format_idc != h->sps.chroma_format_idc |
| 1422 | || av_cmp_q(h->sps.sar, h->avctx->sample_aspect_ratio) |
| 1423 | || h->mb_width != h->sps.mb_width |
| 1424 | || h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) |
| 1425 | )); |
| 1426 | if (non_j_pixfmt(h0->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h0, 0))) |
| 1427 | must_reinit = 1; |
| 1428 | |
| 1429 | h->mb_width = h->sps.mb_width; |
| 1430 | h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag); |
| 1431 | h->mb_num = h->mb_width * h->mb_height; |
| 1432 | h->mb_stride = h->mb_width + 1; |
| 1433 | |
| 1434 | h->b_stride = h->mb_width * 4; |
| 1435 | |
| 1436 | h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p |
| 1437 | |
| 1438 | h->width = 16 * h->mb_width; |
| 1439 | h->height = 16 * h->mb_height; |
| 1440 | |
| 1441 | ret = init_dimensions(h); |
| 1442 | if (ret < 0) |
| 1443 | return ret; |
| 1444 | |
| 1445 | if (h->sps.video_signal_type_present_flag) { |
| 1446 | h->avctx->color_range = h->sps.full_range>0 ? AVCOL_RANGE_JPEG |
| 1447 | : AVCOL_RANGE_MPEG; |
| 1448 | if (h->sps.colour_description_present_flag) { |
| 1449 | if (h->avctx->colorspace != h->sps.colorspace) |
| 1450 | needs_reinit = 1; |
| 1451 | h->avctx->color_primaries = h->sps.color_primaries; |
| 1452 | h->avctx->color_trc = h->sps.color_trc; |
| 1453 | h->avctx->colorspace = h->sps.colorspace; |
| 1454 | } |
| 1455 | } |
| 1456 | |
| 1457 | if (h->context_initialized && |
| 1458 | (must_reinit || needs_reinit)) { |
| 1459 | if (h != h0) { |
| 1460 | av_log(h->avctx, AV_LOG_ERROR, |
| 1461 | "changing width %d -> %d / height %d -> %d on " |
| 1462 | "slice %d\n", |
| 1463 | h->width, h->avctx->coded_width, |
| 1464 | h->height, h->avctx->coded_height, |
| 1465 | h0->current_slice + 1); |
| 1466 | return AVERROR_INVALIDDATA; |
| 1467 | } |
| 1468 | |
| 1469 | ff_h264_flush_change(h); |
| 1470 | |
| 1471 | if ((ret = get_pixel_format(h, 1)) < 0) |
| 1472 | return ret; |
| 1473 | h->avctx->pix_fmt = ret; |
| 1474 | |
| 1475 | av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, " |
| 1476 | "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt)); |
| 1477 | |
| 1478 | if ((ret = h264_slice_header_init(h, 1)) < 0) { |
| 1479 | av_log(h->avctx, AV_LOG_ERROR, |
| 1480 | "h264_slice_header_init() failed\n"); |
| 1481 | return ret; |
| 1482 | } |
| 1483 | } |
| 1484 | if (!h->context_initialized) { |
| 1485 | if (h != h0) { |
| 1486 | av_log(h->avctx, AV_LOG_ERROR, |
| 1487 | "Cannot (re-)initialize context during parallel decoding.\n"); |
| 1488 | return AVERROR_PATCHWELCOME; |
| 1489 | } |
| 1490 | |
| 1491 | if ((ret = get_pixel_format(h, 1)) < 0) |
| 1492 | return ret; |
| 1493 | h->avctx->pix_fmt = ret; |
| 1494 | |
| 1495 | if ((ret = h264_slice_header_init(h, 0)) < 0) { |
| 1496 | av_log(h->avctx, AV_LOG_ERROR, |
| 1497 | "h264_slice_header_init() failed\n"); |
| 1498 | return ret; |
| 1499 | } |
| 1500 | } |
| 1501 | |
| 1502 | if (h == h0 && h->dequant_coeff_pps != pps_id) { |
| 1503 | h->dequant_coeff_pps = pps_id; |
| 1504 | h264_init_dequant_tables(h); |
| 1505 | } |
| 1506 | |
| 1507 | h->frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num); |
| 1508 | |
| 1509 | h->mb_mbaff = 0; |
| 1510 | h->mb_aff_frame = 0; |
| 1511 | last_pic_structure = h0->picture_structure; |
| 1512 | last_pic_droppable = h0->droppable; |
| 1513 | h->droppable = h->nal_ref_idc == 0; |
| 1514 | if (h->sps.frame_mbs_only_flag) { |
| 1515 | h->picture_structure = PICT_FRAME; |
| 1516 | } else { |
| 1517 | if (!h->sps.direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) { |
| 1518 | av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n"); |
| 1519 | return -1; |
| 1520 | } |
| 1521 | field_pic_flag = get_bits1(&h->gb); |
| 1522 | if (field_pic_flag) { |
| 1523 | bottom_field_flag = get_bits1(&h->gb); |
| 1524 | h->picture_structure = PICT_TOP_FIELD + bottom_field_flag; |
| 1525 | } else { |
| 1526 | h->picture_structure = PICT_FRAME; |
| 1527 | h->mb_aff_frame = h->sps.mb_aff; |
| 1528 | } |
| 1529 | } |
| 1530 | h->mb_field_decoding_flag = h->picture_structure != PICT_FRAME; |
| 1531 | |
| 1532 | if (h0->current_slice != 0) { |
| 1533 | if (last_pic_structure != h->picture_structure || |
| 1534 | last_pic_droppable != h->droppable) { |
| 1535 | av_log(h->avctx, AV_LOG_ERROR, |
| 1536 | "Changing field mode (%d -> %d) between slices is not allowed\n", |
| 1537 | last_pic_structure, h->picture_structure); |
| 1538 | h->picture_structure = last_pic_structure; |
| 1539 | h->droppable = last_pic_droppable; |
| 1540 | return AVERROR_INVALIDDATA; |
| 1541 | } else if (!h0->cur_pic_ptr) { |
| 1542 | av_log(h->avctx, AV_LOG_ERROR, |
| 1543 | "unset cur_pic_ptr on slice %d\n", |
| 1544 | h0->current_slice + 1); |
| 1545 | return AVERROR_INVALIDDATA; |
| 1546 | } |
| 1547 | } else { |
| 1548 | /* Shorten frame num gaps so we don't have to allocate reference |
| 1549 | * frames just to throw them away */ |
| 1550 | if (h->frame_num != h->prev_frame_num) { |
| 1551 | int unwrap_prev_frame_num = h->prev_frame_num; |
| 1552 | int max_frame_num = 1 << h->sps.log2_max_frame_num; |
| 1553 | |
| 1554 | if (unwrap_prev_frame_num > h->frame_num) |
| 1555 | unwrap_prev_frame_num -= max_frame_num; |
| 1556 | |
| 1557 | if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) { |
| 1558 | unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1; |
| 1559 | if (unwrap_prev_frame_num < 0) |
| 1560 | unwrap_prev_frame_num += max_frame_num; |
| 1561 | |
| 1562 | h->prev_frame_num = unwrap_prev_frame_num; |
| 1563 | } |
| 1564 | } |
| 1565 | |
| 1566 | /* See if we have a decoded first field looking for a pair... |
| 1567 | * Here, we're using that to see if we should mark previously |
| 1568 | * decode frames as "finished". |
| 1569 | * We have to do that before the "dummy" in-between frame allocation, |
| 1570 | * since that can modify h->cur_pic_ptr. */ |
| 1571 | if (h0->first_field) { |
| 1572 | assert(h0->cur_pic_ptr); |
| 1573 | assert(h0->cur_pic_ptr->f.buf[0]); |
| 1574 | assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF); |
| 1575 | |
| 1576 | /* Mark old field/frame as completed */ |
| 1577 | if (h0->cur_pic_ptr->tf.owner == h0->avctx) { |
| 1578 | ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| 1579 | last_pic_structure == PICT_BOTTOM_FIELD); |
| 1580 | } |
| 1581 | |
| 1582 | /* figure out if we have a complementary field pair */ |
| 1583 | if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) { |
| 1584 | /* Previous field is unmatched. Don't display it, but let it |
| 1585 | * remain for reference if marked as such. */ |
| 1586 | if (last_pic_structure != PICT_FRAME) { |
| 1587 | ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| 1588 | last_pic_structure == PICT_TOP_FIELD); |
| 1589 | } |
| 1590 | } else { |
| 1591 | if (h0->cur_pic_ptr->frame_num != h->frame_num) { |
| 1592 | /* This and previous field were reference, but had |
| 1593 | * different frame_nums. Consider this field first in |
| 1594 | * pair. Throw away previous field except for reference |
| 1595 | * purposes. */ |
| 1596 | if (last_pic_structure != PICT_FRAME) { |
| 1597 | ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| 1598 | last_pic_structure == PICT_TOP_FIELD); |
| 1599 | } |
| 1600 | } else { |
| 1601 | /* Second field in complementary pair */ |
| 1602 | if (!((last_pic_structure == PICT_TOP_FIELD && |
| 1603 | h->picture_structure == PICT_BOTTOM_FIELD) || |
| 1604 | (last_pic_structure == PICT_BOTTOM_FIELD && |
| 1605 | h->picture_structure == PICT_TOP_FIELD))) { |
| 1606 | av_log(h->avctx, AV_LOG_ERROR, |
| 1607 | "Invalid field mode combination %d/%d\n", |
| 1608 | last_pic_structure, h->picture_structure); |
| 1609 | h->picture_structure = last_pic_structure; |
| 1610 | h->droppable = last_pic_droppable; |
| 1611 | return AVERROR_INVALIDDATA; |
| 1612 | } else if (last_pic_droppable != h->droppable) { |
| 1613 | avpriv_request_sample(h->avctx, |
| 1614 | "Found reference and non-reference fields in the same frame, which"); |
| 1615 | h->picture_structure = last_pic_structure; |
| 1616 | h->droppable = last_pic_droppable; |
| 1617 | return AVERROR_PATCHWELCOME; |
| 1618 | } |
| 1619 | } |
| 1620 | } |
| 1621 | } |
| 1622 | |
| 1623 | while (h->frame_num != h->prev_frame_num && !h0->first_field && |
| 1624 | h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) { |
| 1625 | H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL; |
| 1626 | av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", |
| 1627 | h->frame_num, h->prev_frame_num); |
| 1628 | if (!h->sps.gaps_in_frame_num_allowed_flag) |
| 1629 | for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++) |
| 1630 | h->last_pocs[i] = INT_MIN; |
| 1631 | ret = h264_frame_start(h); |
| 1632 | if (ret < 0) { |
| 1633 | h0->first_field = 0; |
| 1634 | return ret; |
| 1635 | } |
| 1636 | |
| 1637 | h->prev_frame_num++; |
| 1638 | h->prev_frame_num %= 1 << h->sps.log2_max_frame_num; |
| 1639 | h->cur_pic_ptr->frame_num = h->prev_frame_num; |
| 1640 | h->cur_pic_ptr->invalid_gap = !h->sps.gaps_in_frame_num_allowed_flag; |
| 1641 | ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0); |
| 1642 | ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1); |
| 1643 | ret = ff_generate_sliding_window_mmcos(h, 1); |
| 1644 | if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| 1645 | return ret; |
| 1646 | ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
| 1647 | if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| 1648 | return ret; |
| 1649 | /* Error concealment: If a ref is missing, copy the previous ref |
| 1650 | * in its place. |
| 1651 | * FIXME: Avoiding a memcpy would be nice, but ref handling makes |
| 1652 | * many assumptions about there being no actual duplicates. |
| 1653 | * FIXME: This does not copy padding for out-of-frame motion |
| 1654 | * vectors. Given we are concealing a lost frame, this probably |
| 1655 | * is not noticeable by comparison, but it should be fixed. */ |
| 1656 | if (h->short_ref_count) { |
| 1657 | if (prev) { |
| 1658 | av_image_copy(h->short_ref[0]->f.data, |
| 1659 | h->short_ref[0]->f.linesize, |
| 1660 | (const uint8_t **)prev->f.data, |
| 1661 | prev->f.linesize, |
| 1662 | h->avctx->pix_fmt, |
| 1663 | h->mb_width * 16, |
| 1664 | h->mb_height * 16); |
| 1665 | h->short_ref[0]->poc = prev->poc + 2; |
| 1666 | } |
| 1667 | h->short_ref[0]->frame_num = h->prev_frame_num; |
| 1668 | } |
| 1669 | } |
| 1670 | |
| 1671 | /* See if we have a decoded first field looking for a pair... |
| 1672 | * We're using that to see whether to continue decoding in that |
| 1673 | * frame, or to allocate a new one. */ |
| 1674 | if (h0->first_field) { |
| 1675 | assert(h0->cur_pic_ptr); |
| 1676 | assert(h0->cur_pic_ptr->f.buf[0]); |
| 1677 | assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF); |
| 1678 | |
| 1679 | /* figure out if we have a complementary field pair */ |
| 1680 | if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) { |
| 1681 | /* Previous field is unmatched. Don't display it, but let it |
| 1682 | * remain for reference if marked as such. */ |
| 1683 | h0->cur_pic_ptr = NULL; |
| 1684 | h0->first_field = FIELD_PICTURE(h); |
| 1685 | } else { |
| 1686 | if (h0->cur_pic_ptr->frame_num != h->frame_num) { |
| 1687 | ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| 1688 | h0->picture_structure==PICT_BOTTOM_FIELD); |
| 1689 | /* This and the previous field had different frame_nums. |
| 1690 | * Consider this field first in pair. Throw away previous |
| 1691 | * one except for reference purposes. */ |
| 1692 | h0->first_field = 1; |
| 1693 | h0->cur_pic_ptr = NULL; |
| 1694 | } else { |
| 1695 | /* Second field in complementary pair */ |
| 1696 | h0->first_field = 0; |
| 1697 | } |
| 1698 | } |
| 1699 | } else { |
| 1700 | /* Frame or first field in a potentially complementary pair */ |
| 1701 | h0->first_field = FIELD_PICTURE(h); |
| 1702 | } |
| 1703 | |
| 1704 | if (!FIELD_PICTURE(h) || h0->first_field) { |
| 1705 | if (h264_frame_start(h) < 0) { |
| 1706 | h0->first_field = 0; |
| 1707 | return AVERROR_INVALIDDATA; |
| 1708 | } |
| 1709 | } else { |
| 1710 | release_unused_pictures(h, 0); |
| 1711 | } |
| 1712 | /* Some macroblocks can be accessed before they're available in case |
| 1713 | * of lost slices, MBAFF or threading. */ |
| 1714 | if (FIELD_PICTURE(h)) { |
| 1715 | for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++) |
| 1716 | memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table)); |
| 1717 | } else { |
| 1718 | memset(h->slice_table, -1, |
| 1719 | (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table)); |
| 1720 | } |
| 1721 | h0->last_slice_type = -1; |
| 1722 | } |
| 1723 | if (h != h0 && (ret = clone_slice(h, h0)) < 0) |
| 1724 | return ret; |
| 1725 | |
| 1726 | /* can't be in alloc_tables because linesize isn't known there. |
| 1727 | * FIXME: redo bipred weight to not require extra buffer? */ |
| 1728 | for (i = 0; i < h->slice_context_count; i++) |
| 1729 | if (h->thread_context[i]) { |
| 1730 | ret = alloc_scratch_buffers(h->thread_context[i], h->linesize); |
| 1731 | if (ret < 0) |
| 1732 | return ret; |
| 1733 | } |
| 1734 | |
| 1735 | h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup |
| 1736 | |
| 1737 | av_assert1(h->mb_num == h->mb_width * h->mb_height); |
| 1738 | if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num || |
| 1739 | first_mb_in_slice >= h->mb_num) { |
| 1740 | av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n"); |
| 1741 | return AVERROR_INVALIDDATA; |
| 1742 | } |
| 1743 | h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width; |
| 1744 | h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) << |
| 1745 | FIELD_OR_MBAFF_PICTURE(h); |
| 1746 | if (h->picture_structure == PICT_BOTTOM_FIELD) |
| 1747 | h->resync_mb_y = h->mb_y = h->mb_y + 1; |
| 1748 | av_assert1(h->mb_y < h->mb_height); |
| 1749 | |
| 1750 | if (h->picture_structure == PICT_FRAME) { |
| 1751 | h->curr_pic_num = h->frame_num; |
| 1752 | h->max_pic_num = 1 << h->sps.log2_max_frame_num; |
| 1753 | } else { |
| 1754 | h->curr_pic_num = 2 * h->frame_num + 1; |
| 1755 | h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1); |
| 1756 | } |
| 1757 | |
| 1758 | if (h->nal_unit_type == NAL_IDR_SLICE) |
| 1759 | get_ue_golomb(&h->gb); /* idr_pic_id */ |
| 1760 | |
| 1761 | if (h->sps.poc_type == 0) { |
| 1762 | h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb); |
| 1763 | |
| 1764 | if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME) |
| 1765 | h->delta_poc_bottom = get_se_golomb(&h->gb); |
| 1766 | } |
| 1767 | |
| 1768 | if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) { |
| 1769 | h->delta_poc[0] = get_se_golomb(&h->gb); |
| 1770 | |
| 1771 | if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME) |
| 1772 | h->delta_poc[1] = get_se_golomb(&h->gb); |
| 1773 | } |
| 1774 | |
| 1775 | ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc); |
| 1776 | |
| 1777 | if (h->pps.redundant_pic_cnt_present) |
| 1778 | h->redundant_pic_count = get_ue_golomb(&h->gb); |
| 1779 | |
| 1780 | ret = ff_set_ref_count(h); |
| 1781 | if (ret < 0) |
| 1782 | return ret; |
| 1783 | |
| 1784 | if (slice_type != AV_PICTURE_TYPE_I && |
| 1785 | (h0->current_slice == 0 || |
| 1786 | slice_type != h0->last_slice_type || |
| 1787 | memcmp(h0->last_ref_count, h0->ref_count, sizeof(h0->ref_count)))) { |
| 1788 | |
| 1789 | ff_h264_fill_default_ref_list(h); |
| 1790 | } |
| 1791 | |
| 1792 | if (h->slice_type_nos != AV_PICTURE_TYPE_I) { |
| 1793 | ret = ff_h264_decode_ref_pic_list_reordering(h); |
| 1794 | if (ret < 0) { |
| 1795 | h->ref_count[1] = h->ref_count[0] = 0; |
| 1796 | return ret; |
| 1797 | } |
| 1798 | } |
| 1799 | |
| 1800 | if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) || |
| 1801 | (h->pps.weighted_bipred_idc == 1 && |
| 1802 | h->slice_type_nos == AV_PICTURE_TYPE_B)) |
| 1803 | ff_pred_weight_table(h); |
| 1804 | else if (h->pps.weighted_bipred_idc == 2 && |
| 1805 | h->slice_type_nos == AV_PICTURE_TYPE_B) { |
| 1806 | implicit_weight_table(h, -1); |
| 1807 | } else { |
| 1808 | h->use_weight = 0; |
| 1809 | for (i = 0; i < 2; i++) { |
| 1810 | h->luma_weight_flag[i] = 0; |
| 1811 | h->chroma_weight_flag[i] = 0; |
| 1812 | } |
| 1813 | } |
| 1814 | |
| 1815 | // If frame-mt is enabled, only update mmco tables for the first slice |
| 1816 | // in a field. Subsequent slices can temporarily clobber h->mmco_index |
| 1817 | // or h->mmco, which will cause ref list mix-ups and decoding errors |
| 1818 | // further down the line. This may break decoding if the first slice is |
| 1819 | // corrupt, thus we only do this if frame-mt is enabled. |
| 1820 | if (h->nal_ref_idc) { |
| 1821 | ret = ff_h264_decode_ref_pic_marking(h0, &h->gb, |
| 1822 | !(h->avctx->active_thread_type & FF_THREAD_FRAME) || |
| 1823 | h0->current_slice == 0); |
| 1824 | if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| 1825 | return AVERROR_INVALIDDATA; |
| 1826 | } |
| 1827 | |
| 1828 | if (FRAME_MBAFF(h)) { |
| 1829 | ff_h264_fill_mbaff_ref_list(h); |
| 1830 | |
| 1831 | if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) { |
| 1832 | implicit_weight_table(h, 0); |
| 1833 | implicit_weight_table(h, 1); |
| 1834 | } |
| 1835 | } |
| 1836 | |
| 1837 | if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred) |
| 1838 | ff_h264_direct_dist_scale_factor(h); |
| 1839 | ff_h264_direct_ref_list_init(h); |
| 1840 | |
| 1841 | if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) { |
| 1842 | tmp = get_ue_golomb_31(&h->gb); |
| 1843 | if (tmp > 2) { |
| 1844 | av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp); |
| 1845 | return AVERROR_INVALIDDATA; |
| 1846 | } |
| 1847 | h->cabac_init_idc = tmp; |
| 1848 | } |
| 1849 | |
| 1850 | h->last_qscale_diff = 0; |
| 1851 | tmp = h->pps.init_qp + get_se_golomb(&h->gb); |
| 1852 | if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) { |
| 1853 | av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp); |
| 1854 | return AVERROR_INVALIDDATA; |
| 1855 | } |
| 1856 | h->qscale = tmp; |
| 1857 | h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale); |
| 1858 | h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale); |
| 1859 | // FIXME qscale / qp ... stuff |
| 1860 | if (h->slice_type == AV_PICTURE_TYPE_SP) |
| 1861 | get_bits1(&h->gb); /* sp_for_switch_flag */ |
| 1862 | if (h->slice_type == AV_PICTURE_TYPE_SP || |
| 1863 | h->slice_type == AV_PICTURE_TYPE_SI) |
| 1864 | get_se_golomb(&h->gb); /* slice_qs_delta */ |
| 1865 | |
| 1866 | h->deblocking_filter = 1; |
| 1867 | h->slice_alpha_c0_offset = 0; |
| 1868 | h->slice_beta_offset = 0; |
| 1869 | if (h->pps.deblocking_filter_parameters_present) { |
| 1870 | tmp = get_ue_golomb_31(&h->gb); |
| 1871 | if (tmp > 2) { |
| 1872 | av_log(h->avctx, AV_LOG_ERROR, |
| 1873 | "deblocking_filter_idc %u out of range\n", tmp); |
| 1874 | return AVERROR_INVALIDDATA; |
| 1875 | } |
| 1876 | h->deblocking_filter = tmp; |
| 1877 | if (h->deblocking_filter < 2) |
| 1878 | h->deblocking_filter ^= 1; // 1<->0 |
| 1879 | |
| 1880 | if (h->deblocking_filter) { |
| 1881 | h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2; |
| 1882 | h->slice_beta_offset = get_se_golomb(&h->gb) * 2; |
| 1883 | if (h->slice_alpha_c0_offset > 12 || |
| 1884 | h->slice_alpha_c0_offset < -12 || |
| 1885 | h->slice_beta_offset > 12 || |
| 1886 | h->slice_beta_offset < -12) { |
| 1887 | av_log(h->avctx, AV_LOG_ERROR, |
| 1888 | "deblocking filter parameters %d %d out of range\n", |
| 1889 | h->slice_alpha_c0_offset, h->slice_beta_offset); |
| 1890 | return AVERROR_INVALIDDATA; |
| 1891 | } |
| 1892 | } |
| 1893 | } |
| 1894 | |
| 1895 | if (h->avctx->skip_loop_filter >= AVDISCARD_ALL || |
| 1896 | (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY && |
| 1897 | h->nal_unit_type != NAL_IDR_SLICE) || |
| 1898 | (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA && |
| 1899 | h->slice_type_nos != AV_PICTURE_TYPE_I) || |
| 1900 | (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR && |
| 1901 | h->slice_type_nos == AV_PICTURE_TYPE_B) || |
| 1902 | (h->avctx->skip_loop_filter >= AVDISCARD_NONREF && |
| 1903 | h->nal_ref_idc == 0)) |
| 1904 | h->deblocking_filter = 0; |
| 1905 | |
| 1906 | if (h->deblocking_filter == 1 && h0->max_contexts > 1) { |
| 1907 | if (h->avctx->flags2 & CODEC_FLAG2_FAST) { |
| 1908 | /* Cheat slightly for speed: |
| 1909 | * Do not bother to deblock across slices. */ |
| 1910 | h->deblocking_filter = 2; |
| 1911 | } else { |
| 1912 | h0->max_contexts = 1; |
| 1913 | if (!h0->single_decode_warning) { |
| 1914 | av_log(h->avctx, AV_LOG_INFO, |
| 1915 | "Cannot parallelize slice decoding with deblocking filter type 1, decoding such frames in sequential order\n" |
| 1916 | "To parallelize slice decoding you need video encoded with disable_deblocking_filter_idc set to 2 (deblock only edges that do not cross slices).\n" |
| 1917 | "Setting the flags2 libavcodec option to +fast (-flags2 +fast) will disable deblocking across slices and enable parallel slice decoding " |
| 1918 | "but will generate non-standard-compliant output.\n"); |
| 1919 | h0->single_decode_warning = 1; |
| 1920 | } |
| 1921 | if (h != h0) { |
| 1922 | av_log(h->avctx, AV_LOG_ERROR, |
| 1923 | "Deblocking switched inside frame.\n"); |
| 1924 | return SLICE_SINGLETHREAD; |
| 1925 | } |
| 1926 | } |
| 1927 | } |
| 1928 | h->qp_thresh = 15 - |
| 1929 | FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - |
| 1930 | FFMAX3(0, |
| 1931 | h->pps.chroma_qp_index_offset[0], |
| 1932 | h->pps.chroma_qp_index_offset[1]) + |
| 1933 | 6 * (h->sps.bit_depth_luma - 8); |
| 1934 | |
| 1935 | h0->last_slice_type = slice_type; |
| 1936 | memcpy(h0->last_ref_count, h0->ref_count, sizeof(h0->last_ref_count)); |
| 1937 | h->slice_num = ++h0->current_slice; |
| 1938 | |
| 1939 | if (h->slice_num) |
| 1940 | h0->slice_row[(h->slice_num-1)&(MAX_SLICES-1)]= h->resync_mb_y; |
| 1941 | if ( h0->slice_row[h->slice_num&(MAX_SLICES-1)] + 3 >= h->resync_mb_y |
| 1942 | && h0->slice_row[h->slice_num&(MAX_SLICES-1)] <= h->resync_mb_y |
| 1943 | && h->slice_num >= MAX_SLICES) { |
| 1944 | //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case |
| 1945 | av_log(h->avctx, AV_LOG_WARNING, "Possibly too many slices (%d >= %d), increase MAX_SLICES and recompile if there are artifacts\n", h->slice_num, MAX_SLICES); |
| 1946 | } |
| 1947 | |
| 1948 | for (j = 0; j < 2; j++) { |
| 1949 | int id_list[16]; |
| 1950 | int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j]; |
| 1951 | for (i = 0; i < 16; i++) { |
| 1952 | id_list[i] = 60; |
| 1953 | if (j < h->list_count && i < h->ref_count[j] && |
| 1954 | h->ref_list[j][i].f.buf[0]) { |
| 1955 | int k; |
| 1956 | AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer; |
| 1957 | for (k = 0; k < h->short_ref_count; k++) |
| 1958 | if (h->short_ref[k]->f.buf[0]->buffer == buf) { |
| 1959 | id_list[i] = k; |
| 1960 | break; |
| 1961 | } |
| 1962 | for (k = 0; k < h->long_ref_count; k++) |
| 1963 | if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) { |
| 1964 | id_list[i] = h->short_ref_count + k; |
| 1965 | break; |
| 1966 | } |
| 1967 | } |
| 1968 | } |
| 1969 | |
| 1970 | ref2frm[0] = |
| 1971 | ref2frm[1] = -1; |
| 1972 | for (i = 0; i < 16; i++) |
| 1973 | ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3); |
| 1974 | ref2frm[18 + 0] = |
| 1975 | ref2frm[18 + 1] = -1; |
| 1976 | for (i = 16; i < 48; i++) |
| 1977 | ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] + |
| 1978 | (h->ref_list[j][i].reference & 3); |
| 1979 | } |
| 1980 | |
| 1981 | if (h->ref_count[0]) ff_h264_set_erpic(&h->er.last_pic, &h->ref_list[0][0]); |
| 1982 | if (h->ref_count[1]) ff_h264_set_erpic(&h->er.next_pic, &h->ref_list[1][0]); |
| 1983 | |
| 1984 | h->er.ref_count = h->ref_count[0]; |
| 1985 | h0->au_pps_id = pps_id; |
| 1986 | h->sps.new = |
| 1987 | h0->sps_buffers[h->pps.sps_id]->new = 0; |
| 1988 | h->current_sps_id = h->pps.sps_id; |
| 1989 | |
| 1990 | if (h->avctx->debug & FF_DEBUG_PICT_INFO) { |
| 1991 | av_log(h->avctx, AV_LOG_DEBUG, |
| 1992 | "slice:%d %s mb:%d %c%s%s pps:%u frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n", |
| 1993 | h->slice_num, |
| 1994 | (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"), |
| 1995 | first_mb_in_slice, |
| 1996 | av_get_picture_type_char(h->slice_type), |
| 1997 | h->slice_type_fixed ? " fix" : "", |
| 1998 | h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "", |
| 1999 | pps_id, h->frame_num, |
| 2000 | h->cur_pic_ptr->field_poc[0], |
| 2001 | h->cur_pic_ptr->field_poc[1], |
| 2002 | h->ref_count[0], h->ref_count[1], |
| 2003 | h->qscale, |
| 2004 | h->deblocking_filter, |
| 2005 | h->slice_alpha_c0_offset, h->slice_beta_offset, |
| 2006 | h->use_weight, |
| 2007 | h->use_weight == 1 && h->use_weight_chroma ? "c" : "", |
| 2008 | h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""); |
| 2009 | } |
| 2010 | |
| 2011 | return 0; |
| 2012 | } |
| 2013 | |
| 2014 | int ff_h264_get_slice_type(const H264Context *h) |
| 2015 | { |
| 2016 | switch (h->slice_type) { |
| 2017 | case AV_PICTURE_TYPE_P: |
| 2018 | return 0; |
| 2019 | case AV_PICTURE_TYPE_B: |
| 2020 | return 1; |
| 2021 | case AV_PICTURE_TYPE_I: |
| 2022 | return 2; |
| 2023 | case AV_PICTURE_TYPE_SP: |
| 2024 | return 3; |
| 2025 | case AV_PICTURE_TYPE_SI: |
| 2026 | return 4; |
| 2027 | default: |
| 2028 | return AVERROR_INVALIDDATA; |
| 2029 | } |
| 2030 | } |
| 2031 | |
| 2032 | static av_always_inline void fill_filter_caches_inter(H264Context *h, |
| 2033 | int mb_type, int top_xy, |
| 2034 | int left_xy[LEFT_MBS], |
| 2035 | int top_type, |
| 2036 | int left_type[LEFT_MBS], |
| 2037 | int mb_xy, int list) |
| 2038 | { |
| 2039 | int b_stride = h->b_stride; |
| 2040 | int16_t(*mv_dst)[2] = &h->mv_cache[list][scan8[0]]; |
| 2041 | int8_t *ref_cache = &h->ref_cache[list][scan8[0]]; |
| 2042 | if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) { |
| 2043 | if (USES_LIST(top_type, list)) { |
| 2044 | const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride; |
| 2045 | const int b8_xy = 4 * top_xy + 2; |
| 2046 | int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| 2047 | AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]); |
| 2048 | ref_cache[0 - 1 * 8] = |
| 2049 | ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]]; |
| 2050 | ref_cache[2 - 1 * 8] = |
| 2051 | ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]]; |
| 2052 | } else { |
| 2053 | AV_ZERO128(mv_dst - 1 * 8); |
| 2054 | AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| 2055 | } |
| 2056 | |
| 2057 | if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) { |
| 2058 | if (USES_LIST(left_type[LTOP], list)) { |
| 2059 | const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3; |
| 2060 | const int b8_xy = 4 * left_xy[LTOP] + 1; |
| 2061 | int (*ref2frm)[64] =(void*)( h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| 2062 | AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]); |
| 2063 | AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]); |
| 2064 | AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]); |
| 2065 | AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]); |
| 2066 | ref_cache[-1 + 0] = |
| 2067 | ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]]; |
| 2068 | ref_cache[-1 + 16] = |
| 2069 | ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]]; |
| 2070 | } else { |
| 2071 | AV_ZERO32(mv_dst - 1 + 0); |
| 2072 | AV_ZERO32(mv_dst - 1 + 8); |
| 2073 | AV_ZERO32(mv_dst - 1 + 16); |
| 2074 | AV_ZERO32(mv_dst - 1 + 24); |
| 2075 | ref_cache[-1 + 0] = |
| 2076 | ref_cache[-1 + 8] = |
| 2077 | ref_cache[-1 + 16] = |
| 2078 | ref_cache[-1 + 24] = LIST_NOT_USED; |
| 2079 | } |
| 2080 | } |
| 2081 | } |
| 2082 | |
| 2083 | if (!USES_LIST(mb_type, list)) { |
| 2084 | fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4); |
| 2085 | AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| 2086 | AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| 2087 | AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| 2088 | AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| 2089 | return; |
| 2090 | } |
| 2091 | |
| 2092 | { |
| 2093 | int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy]; |
| 2094 | int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| 2095 | uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101; |
| 2096 | uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101; |
| 2097 | AV_WN32A(&ref_cache[0 * 8], ref01); |
| 2098 | AV_WN32A(&ref_cache[1 * 8], ref01); |
| 2099 | AV_WN32A(&ref_cache[2 * 8], ref23); |
| 2100 | AV_WN32A(&ref_cache[3 * 8], ref23); |
| 2101 | } |
| 2102 | |
| 2103 | { |
| 2104 | int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * h->mb_x + 4 * h->mb_y * b_stride]; |
| 2105 | AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride); |
| 2106 | AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride); |
| 2107 | AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride); |
| 2108 | AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride); |
| 2109 | } |
| 2110 | } |
| 2111 | |
| 2112 | /** |
| 2113 | * |
| 2114 | * @return non zero if the loop filter can be skipped |
| 2115 | */ |
| 2116 | static int fill_filter_caches(H264Context *h, int mb_type) |
| 2117 | { |
| 2118 | const int mb_xy = h->mb_xy; |
| 2119 | int top_xy, left_xy[LEFT_MBS]; |
| 2120 | int top_type, left_type[LEFT_MBS]; |
| 2121 | uint8_t *nnz; |
| 2122 | uint8_t *nnz_cache; |
| 2123 | |
| 2124 | top_xy = mb_xy - (h->mb_stride << MB_FIELD(h)); |
| 2125 | |
| 2126 | /* Wow, what a mess, why didn't they simplify the interlacing & intra |
| 2127 | * stuff, I can't imagine that these complex rules are worth it. */ |
| 2128 | |
| 2129 | left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1; |
| 2130 | if (FRAME_MBAFF(h)) { |
| 2131 | const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]); |
| 2132 | const int curr_mb_field_flag = IS_INTERLACED(mb_type); |
| 2133 | if (h->mb_y & 1) { |
| 2134 | if (left_mb_field_flag != curr_mb_field_flag) |
| 2135 | left_xy[LTOP] -= h->mb_stride; |
| 2136 | } else { |
| 2137 | if (curr_mb_field_flag) |
| 2138 | top_xy += h->mb_stride & |
| 2139 | (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1); |
| 2140 | if (left_mb_field_flag != curr_mb_field_flag) |
| 2141 | left_xy[LBOT] += h->mb_stride; |
| 2142 | } |
| 2143 | } |
| 2144 | |
| 2145 | h->top_mb_xy = top_xy; |
| 2146 | h->left_mb_xy[LTOP] = left_xy[LTOP]; |
| 2147 | h->left_mb_xy[LBOT] = left_xy[LBOT]; |
| 2148 | { |
| 2149 | /* For sufficiently low qp, filtering wouldn't do anything. |
| 2150 | * This is a conservative estimate: could also check beta_offset |
| 2151 | * and more accurate chroma_qp. */ |
| 2152 | int qp_thresh = h->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice |
| 2153 | int qp = h->cur_pic.qscale_table[mb_xy]; |
| 2154 | if (qp <= qp_thresh && |
| 2155 | (left_xy[LTOP] < 0 || |
| 2156 | ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) && |
| 2157 | (top_xy < 0 || |
| 2158 | ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) { |
| 2159 | if (!FRAME_MBAFF(h)) |
| 2160 | return 1; |
| 2161 | if ((left_xy[LTOP] < 0 || |
| 2162 | ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) && |
| 2163 | (top_xy < h->mb_stride || |
| 2164 | ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh)) |
| 2165 | return 1; |
| 2166 | } |
| 2167 | } |
| 2168 | |
| 2169 | top_type = h->cur_pic.mb_type[top_xy]; |
| 2170 | left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]]; |
| 2171 | left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]]; |
| 2172 | if (h->deblocking_filter == 2) { |
| 2173 | if (h->slice_table[top_xy] != h->slice_num) |
| 2174 | top_type = 0; |
| 2175 | if (h->slice_table[left_xy[LBOT]] != h->slice_num) |
| 2176 | left_type[LTOP] = left_type[LBOT] = 0; |
| 2177 | } else { |
| 2178 | if (h->slice_table[top_xy] == 0xFFFF) |
| 2179 | top_type = 0; |
| 2180 | if (h->slice_table[left_xy[LBOT]] == 0xFFFF) |
| 2181 | left_type[LTOP] = left_type[LBOT] = 0; |
| 2182 | } |
| 2183 | h->top_type = top_type; |
| 2184 | h->left_type[LTOP] = left_type[LTOP]; |
| 2185 | h->left_type[LBOT] = left_type[LBOT]; |
| 2186 | |
| 2187 | if (IS_INTRA(mb_type)) |
| 2188 | return 0; |
| 2189 | |
| 2190 | fill_filter_caches_inter(h, mb_type, top_xy, left_xy, |
| 2191 | top_type, left_type, mb_xy, 0); |
| 2192 | if (h->list_count == 2) |
| 2193 | fill_filter_caches_inter(h, mb_type, top_xy, left_xy, |
| 2194 | top_type, left_type, mb_xy, 1); |
| 2195 | |
| 2196 | nnz = h->non_zero_count[mb_xy]; |
| 2197 | nnz_cache = h->non_zero_count_cache; |
| 2198 | AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]); |
| 2199 | AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]); |
| 2200 | AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]); |
| 2201 | AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]); |
| 2202 | h->cbp = h->cbp_table[mb_xy]; |
| 2203 | |
| 2204 | if (top_type) { |
| 2205 | nnz = h->non_zero_count[top_xy]; |
| 2206 | AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]); |
| 2207 | } |
| 2208 | |
| 2209 | if (left_type[LTOP]) { |
| 2210 | nnz = h->non_zero_count[left_xy[LTOP]]; |
| 2211 | nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4]; |
| 2212 | nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4]; |
| 2213 | nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4]; |
| 2214 | nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4]; |
| 2215 | } |
| 2216 | |
| 2217 | /* CAVLC 8x8dct requires NNZ values for residual decoding that differ |
| 2218 | * from what the loop filter needs */ |
| 2219 | if (!CABAC(h) && h->pps.transform_8x8_mode) { |
| 2220 | if (IS_8x8DCT(top_type)) { |
| 2221 | nnz_cache[4 + 8 * 0] = |
| 2222 | nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12; |
| 2223 | nnz_cache[6 + 8 * 0] = |
| 2224 | nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12; |
| 2225 | } |
| 2226 | if (IS_8x8DCT(left_type[LTOP])) { |
| 2227 | nnz_cache[3 + 8 * 1] = |
| 2228 | nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF |
| 2229 | } |
| 2230 | if (IS_8x8DCT(left_type[LBOT])) { |
| 2231 | nnz_cache[3 + 8 * 3] = |
| 2232 | nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF |
| 2233 | } |
| 2234 | |
| 2235 | if (IS_8x8DCT(mb_type)) { |
| 2236 | nnz_cache[scan8[0]] = |
| 2237 | nnz_cache[scan8[1]] = |
| 2238 | nnz_cache[scan8[2]] = |
| 2239 | nnz_cache[scan8[3]] = (h->cbp & 0x1000) >> 12; |
| 2240 | |
| 2241 | nnz_cache[scan8[0 + 4]] = |
| 2242 | nnz_cache[scan8[1 + 4]] = |
| 2243 | nnz_cache[scan8[2 + 4]] = |
| 2244 | nnz_cache[scan8[3 + 4]] = (h->cbp & 0x2000) >> 12; |
| 2245 | |
| 2246 | nnz_cache[scan8[0 + 8]] = |
| 2247 | nnz_cache[scan8[1 + 8]] = |
| 2248 | nnz_cache[scan8[2 + 8]] = |
| 2249 | nnz_cache[scan8[3 + 8]] = (h->cbp & 0x4000) >> 12; |
| 2250 | |
| 2251 | nnz_cache[scan8[0 + 12]] = |
| 2252 | nnz_cache[scan8[1 + 12]] = |
| 2253 | nnz_cache[scan8[2 + 12]] = |
| 2254 | nnz_cache[scan8[3 + 12]] = (h->cbp & 0x8000) >> 12; |
| 2255 | } |
| 2256 | } |
| 2257 | |
| 2258 | return 0; |
| 2259 | } |
| 2260 | |
| 2261 | static void loop_filter(H264Context *h, int start_x, int end_x) |
| 2262 | { |
| 2263 | uint8_t *dest_y, *dest_cb, *dest_cr; |
| 2264 | int linesize, uvlinesize, mb_x, mb_y; |
| 2265 | const int end_mb_y = h->mb_y + FRAME_MBAFF(h); |
| 2266 | const int old_slice_type = h->slice_type; |
| 2267 | const int pixel_shift = h->pixel_shift; |
| 2268 | const int block_h = 16 >> h->chroma_y_shift; |
| 2269 | |
| 2270 | if (h->deblocking_filter) { |
| 2271 | for (mb_x = start_x; mb_x < end_x; mb_x++) |
| 2272 | for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) { |
| 2273 | int mb_xy, mb_type; |
| 2274 | mb_xy = h->mb_xy = mb_x + mb_y * h->mb_stride; |
| 2275 | h->slice_num = h->slice_table[mb_xy]; |
| 2276 | mb_type = h->cur_pic.mb_type[mb_xy]; |
| 2277 | h->list_count = h->list_counts[mb_xy]; |
| 2278 | |
| 2279 | if (FRAME_MBAFF(h)) |
| 2280 | h->mb_mbaff = |
| 2281 | h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type); |
| 2282 | |
| 2283 | h->mb_x = mb_x; |
| 2284 | h->mb_y = mb_y; |
| 2285 | dest_y = h->cur_pic.f.data[0] + |
| 2286 | ((mb_x << pixel_shift) + mb_y * h->linesize) * 16; |
| 2287 | dest_cb = h->cur_pic.f.data[1] + |
| 2288 | (mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
| 2289 | mb_y * h->uvlinesize * block_h; |
| 2290 | dest_cr = h->cur_pic.f.data[2] + |
| 2291 | (mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
| 2292 | mb_y * h->uvlinesize * block_h; |
| 2293 | // FIXME simplify above |
| 2294 | |
| 2295 | if (MB_FIELD(h)) { |
| 2296 | linesize = h->mb_linesize = h->linesize * 2; |
| 2297 | uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2; |
| 2298 | if (mb_y & 1) { // FIXME move out of this function? |
| 2299 | dest_y -= h->linesize * 15; |
| 2300 | dest_cb -= h->uvlinesize * (block_h - 1); |
| 2301 | dest_cr -= h->uvlinesize * (block_h - 1); |
| 2302 | } |
| 2303 | } else { |
| 2304 | linesize = h->mb_linesize = h->linesize; |
| 2305 | uvlinesize = h->mb_uvlinesize = h->uvlinesize; |
| 2306 | } |
| 2307 | backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, |
| 2308 | uvlinesize, 0); |
| 2309 | if (fill_filter_caches(h, mb_type)) |
| 2310 | continue; |
| 2311 | h->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]); |
| 2312 | h->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]); |
| 2313 | |
| 2314 | if (FRAME_MBAFF(h)) { |
| 2315 | ff_h264_filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, |
| 2316 | linesize, uvlinesize); |
| 2317 | } else { |
| 2318 | ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, |
| 2319 | dest_cr, linesize, uvlinesize); |
| 2320 | } |
| 2321 | } |
| 2322 | } |
| 2323 | h->slice_type = old_slice_type; |
| 2324 | h->mb_x = end_x; |
| 2325 | h->mb_y = end_mb_y - FRAME_MBAFF(h); |
| 2326 | h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale); |
| 2327 | h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale); |
| 2328 | } |
| 2329 | |
| 2330 | static void predict_field_decoding_flag(H264Context *h) |
| 2331 | { |
| 2332 | const int mb_xy = h->mb_x + h->mb_y * h->mb_stride; |
| 2333 | int mb_type = (h->slice_table[mb_xy - 1] == h->slice_num) ? |
| 2334 | h->cur_pic.mb_type[mb_xy - 1] : |
| 2335 | (h->slice_table[mb_xy - h->mb_stride] == h->slice_num) ? |
| 2336 | h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0; |
| 2337 | h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0; |
| 2338 | } |
| 2339 | |
| 2340 | /** |
| 2341 | * Draw edges and report progress for the last MB row. |
| 2342 | */ |
| 2343 | static void decode_finish_row(H264Context *h) |
| 2344 | { |
| 2345 | int top = 16 * (h->mb_y >> FIELD_PICTURE(h)); |
| 2346 | int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h); |
| 2347 | int height = 16 << FRAME_MBAFF(h); |
| 2348 | int deblock_border = (16 + 4) << FRAME_MBAFF(h); |
| 2349 | |
| 2350 | if (h->deblocking_filter) { |
| 2351 | if ((top + height) >= pic_height) |
| 2352 | height += deblock_border; |
| 2353 | top -= deblock_border; |
| 2354 | } |
| 2355 | |
| 2356 | if (top >= pic_height || (top + height) < 0) |
| 2357 | return; |
| 2358 | |
| 2359 | height = FFMIN(height, pic_height - top); |
| 2360 | if (top < 0) { |
| 2361 | height = top + height; |
| 2362 | top = 0; |
| 2363 | } |
| 2364 | |
| 2365 | ff_h264_draw_horiz_band(h, top, height); |
| 2366 | |
| 2367 | if (h->droppable || h->er.error_occurred) |
| 2368 | return; |
| 2369 | |
| 2370 | ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1, |
| 2371 | h->picture_structure == PICT_BOTTOM_FIELD); |
| 2372 | } |
| 2373 | |
| 2374 | static void er_add_slice(H264Context *h, int startx, int starty, |
| 2375 | int endx, int endy, int status) |
| 2376 | { |
| 2377 | if (CONFIG_ERROR_RESILIENCE) { |
| 2378 | ERContext *er = &h->er; |
| 2379 | |
| 2380 | ff_er_add_slice(er, startx, starty, endx, endy, status); |
| 2381 | } |
| 2382 | } |
| 2383 | |
| 2384 | static int decode_slice(struct AVCodecContext *avctx, void *arg) |
| 2385 | { |
| 2386 | H264Context *h = *(void **)arg; |
| 2387 | int lf_x_start = h->mb_x; |
| 2388 | |
| 2389 | h->mb_skip_run = -1; |
| 2390 | |
| 2391 | av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * h->linesize * ((scan8[15] - scan8[0]) >> 3)); |
| 2392 | |
| 2393 | h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME || |
| 2394 | avctx->codec_id != AV_CODEC_ID_H264 || |
| 2395 | (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY)); |
| 2396 | |
| 2397 | if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->er.error_status_table) { |
| 2398 | const int start_i = av_clip(h->resync_mb_x + h->resync_mb_y * h->mb_width, 0, h->mb_num - 1); |
| 2399 | if (start_i) { |
| 2400 | int prev_status = h->er.error_status_table[h->er.mb_index2xy[start_i - 1]]; |
| 2401 | prev_status &= ~ VP_START; |
| 2402 | if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) |
| 2403 | h->er.error_occurred = 1; |
| 2404 | } |
| 2405 | } |
| 2406 | |
| 2407 | if (h->pps.cabac) { |
| 2408 | /* realign */ |
| 2409 | align_get_bits(&h->gb); |
| 2410 | |
| 2411 | /* init cabac */ |
| 2412 | ff_init_cabac_decoder(&h->cabac, |
| 2413 | h->gb.buffer + get_bits_count(&h->gb) / 8, |
| 2414 | (get_bits_left(&h->gb) + 7) / 8); |
| 2415 | |
| 2416 | ff_h264_init_cabac_states(h); |
| 2417 | |
| 2418 | for (;;) { |
| 2419 | // START_TIMER |
| 2420 | int ret = ff_h264_decode_mb_cabac(h); |
| 2421 | int eos; |
| 2422 | // STOP_TIMER("decode_mb_cabac") |
| 2423 | |
| 2424 | if (ret >= 0) |
| 2425 | ff_h264_hl_decode_mb(h); |
| 2426 | |
| 2427 | // FIXME optimal? or let mb_decode decode 16x32 ? |
| 2428 | if (ret >= 0 && FRAME_MBAFF(h)) { |
| 2429 | h->mb_y++; |
| 2430 | |
| 2431 | ret = ff_h264_decode_mb_cabac(h); |
| 2432 | |
| 2433 | if (ret >= 0) |
| 2434 | ff_h264_hl_decode_mb(h); |
| 2435 | h->mb_y--; |
| 2436 | } |
| 2437 | eos = get_cabac_terminate(&h->cabac); |
| 2438 | |
| 2439 | if ((h->workaround_bugs & FF_BUG_TRUNCATED) && |
| 2440 | h->cabac.bytestream > h->cabac.bytestream_end + 2) { |
| 2441 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1, |
| 2442 | h->mb_y, ER_MB_END); |
| 2443 | if (h->mb_x >= lf_x_start) |
| 2444 | loop_filter(h, lf_x_start, h->mb_x + 1); |
| 2445 | return 0; |
| 2446 | } |
| 2447 | if (h->cabac.bytestream > h->cabac.bytestream_end + 2 ) |
| 2448 | av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", h->cabac.bytestream_end - h->cabac.bytestream); |
| 2449 | if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 4) { |
| 2450 | av_log(h->avctx, AV_LOG_ERROR, |
| 2451 | "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n", |
| 2452 | h->mb_x, h->mb_y, |
| 2453 | h->cabac.bytestream_end - h->cabac.bytestream); |
| 2454 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| 2455 | h->mb_y, ER_MB_ERROR); |
| 2456 | return AVERROR_INVALIDDATA; |
| 2457 | } |
| 2458 | |
| 2459 | if (++h->mb_x >= h->mb_width) { |
| 2460 | loop_filter(h, lf_x_start, h->mb_x); |
| 2461 | h->mb_x = lf_x_start = 0; |
| 2462 | decode_finish_row(h); |
| 2463 | ++h->mb_y; |
| 2464 | if (FIELD_OR_MBAFF_PICTURE(h)) { |
| 2465 | ++h->mb_y; |
| 2466 | if (FRAME_MBAFF(h) && h->mb_y < h->mb_height) |
| 2467 | predict_field_decoding_flag(h); |
| 2468 | } |
| 2469 | } |
| 2470 | |
| 2471 | if (eos || h->mb_y >= h->mb_height) { |
| 2472 | tprintf(h->avctx, "slice end %d %d\n", |
| 2473 | get_bits_count(&h->gb), h->gb.size_in_bits); |
| 2474 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1, |
| 2475 | h->mb_y, ER_MB_END); |
| 2476 | if (h->mb_x > lf_x_start) |
| 2477 | loop_filter(h, lf_x_start, h->mb_x); |
| 2478 | return 0; |
| 2479 | } |
| 2480 | } |
| 2481 | } else { |
| 2482 | for (;;) { |
| 2483 | int ret = ff_h264_decode_mb_cavlc(h); |
| 2484 | |
| 2485 | if (ret >= 0) |
| 2486 | ff_h264_hl_decode_mb(h); |
| 2487 | |
| 2488 | // FIXME optimal? or let mb_decode decode 16x32 ? |
| 2489 | if (ret >= 0 && FRAME_MBAFF(h)) { |
| 2490 | h->mb_y++; |
| 2491 | ret = ff_h264_decode_mb_cavlc(h); |
| 2492 | |
| 2493 | if (ret >= 0) |
| 2494 | ff_h264_hl_decode_mb(h); |
| 2495 | h->mb_y--; |
| 2496 | } |
| 2497 | |
| 2498 | if (ret < 0) { |
| 2499 | av_log(h->avctx, AV_LOG_ERROR, |
| 2500 | "error while decoding MB %d %d\n", h->mb_x, h->mb_y); |
| 2501 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| 2502 | h->mb_y, ER_MB_ERROR); |
| 2503 | return ret; |
| 2504 | } |
| 2505 | |
| 2506 | if (++h->mb_x >= h->mb_width) { |
| 2507 | loop_filter(h, lf_x_start, h->mb_x); |
| 2508 | h->mb_x = lf_x_start = 0; |
| 2509 | decode_finish_row(h); |
| 2510 | ++h->mb_y; |
| 2511 | if (FIELD_OR_MBAFF_PICTURE(h)) { |
| 2512 | ++h->mb_y; |
| 2513 | if (FRAME_MBAFF(h) && h->mb_y < h->mb_height) |
| 2514 | predict_field_decoding_flag(h); |
| 2515 | } |
| 2516 | if (h->mb_y >= h->mb_height) { |
| 2517 | tprintf(h->avctx, "slice end %d %d\n", |
| 2518 | get_bits_count(&h->gb), h->gb.size_in_bits); |
| 2519 | |
| 2520 | if ( get_bits_left(&h->gb) == 0 |
| 2521 | || get_bits_left(&h->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) { |
| 2522 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| 2523 | h->mb_x - 1, h->mb_y, ER_MB_END); |
| 2524 | |
| 2525 | return 0; |
| 2526 | } else { |
| 2527 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| 2528 | h->mb_x, h->mb_y, ER_MB_END); |
| 2529 | |
| 2530 | return AVERROR_INVALIDDATA; |
| 2531 | } |
| 2532 | } |
| 2533 | } |
| 2534 | |
| 2535 | if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) { |
| 2536 | tprintf(h->avctx, "slice end %d %d\n", |
| 2537 | get_bits_count(&h->gb), h->gb.size_in_bits); |
| 2538 | |
| 2539 | if (get_bits_left(&h->gb) == 0) { |
| 2540 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| 2541 | h->mb_x - 1, h->mb_y, ER_MB_END); |
| 2542 | if (h->mb_x > lf_x_start) |
| 2543 | loop_filter(h, lf_x_start, h->mb_x); |
| 2544 | |
| 2545 | return 0; |
| 2546 | } else { |
| 2547 | er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| 2548 | h->mb_y, ER_MB_ERROR); |
| 2549 | |
| 2550 | return AVERROR_INVALIDDATA; |
| 2551 | } |
| 2552 | } |
| 2553 | } |
| 2554 | } |
| 2555 | } |
| 2556 | |
| 2557 | /** |
| 2558 | * Call decode_slice() for each context. |
| 2559 | * |
| 2560 | * @param h h264 master context |
| 2561 | * @param context_count number of contexts to execute |
| 2562 | */ |
| 2563 | int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count) |
| 2564 | { |
| 2565 | AVCodecContext *const avctx = h->avctx; |
| 2566 | H264Context *hx; |
| 2567 | int i; |
| 2568 | |
| 2569 | av_assert0(h->mb_y < h->mb_height); |
| 2570 | |
| 2571 | if (h->avctx->hwaccel || |
| 2572 | h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) |
| 2573 | return 0; |
| 2574 | if (context_count == 1) { |
| 2575 | return decode_slice(avctx, &h); |
| 2576 | } else { |
| 2577 | av_assert0(context_count > 0); |
| 2578 | for (i = 1; i < context_count; i++) { |
| 2579 | hx = h->thread_context[i]; |
| 2580 | if (CONFIG_ERROR_RESILIENCE) { |
| 2581 | hx->er.error_count = 0; |
| 2582 | } |
| 2583 | hx->x264_build = h->x264_build; |
| 2584 | } |
| 2585 | |
| 2586 | avctx->execute(avctx, decode_slice, h->thread_context, |
| 2587 | NULL, context_count, sizeof(void *)); |
| 2588 | |
| 2589 | /* pull back stuff from slices to master context */ |
| 2590 | hx = h->thread_context[context_count - 1]; |
| 2591 | h->mb_x = hx->mb_x; |
| 2592 | h->mb_y = hx->mb_y; |
| 2593 | h->droppable = hx->droppable; |
| 2594 | h->picture_structure = hx->picture_structure; |
| 2595 | if (CONFIG_ERROR_RESILIENCE) { |
| 2596 | for (i = 1; i < context_count; i++) |
| 2597 | h->er.error_count += h->thread_context[i]->er.error_count; |
| 2598 | } |
| 2599 | } |
| 2600 | |
| 2601 | return 0; |
| 2602 | } |