| /* |
| * H.26L/H.264/AVC/JVT/14496-10/... decoder |
| * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| /** |
| * @file |
| * H.264 / AVC / MPEG4 part10 codec. |
| * @author Michael Niedermayer <michaelni@gmx.at> |
| */ |
| |
| #include "libavutil/avassert.h" |
| #include "libavutil/imgutils.h" |
| #include "libavutil/timer.h" |
| #include "internal.h" |
| #include "cabac.h" |
| #include "cabac_functions.h" |
| #include "error_resilience.h" |
| #include "avcodec.h" |
| #include "h264.h" |
| #include "h264data.h" |
| #include "h264chroma.h" |
| #include "h264_mvpred.h" |
| #include "golomb.h" |
| #include "mathops.h" |
| #include "mpegutils.h" |
| #include "rectangle.h" |
| #include "thread.h" |
| |
| |
| static const uint8_t rem6[QP_MAX_NUM + 1] = { |
| 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, |
| 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, |
| 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, |
| 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1, 2, 3, 4, 5, |
| 0, 1, 2, 3, |
| }; |
| |
| static const uint8_t div6[QP_MAX_NUM + 1] = { |
| 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 3, 3, 3, |
| 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, |
| 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 10, 10, 10, |
| 10,10,10,11,11,11,11,11,11,12,12,12,12,12,12,13,13,13, 13, 13, 13, |
| 14,14,14,14, |
| }; |
| |
| static const uint8_t field_scan[16+1] = { |
| 0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4, |
| 0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4, |
| 2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4, |
| 3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4, |
| }; |
| |
| static const uint8_t field_scan8x8[64+1] = { |
| 0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8, |
| 1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8, |
| 2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8, |
| 0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8, |
| 2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8, |
| 2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8, |
| 2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8, |
| 3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8, |
| 3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8, |
| 4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8, |
| 4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8, |
| 5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8, |
| 5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8, |
| 7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8, |
| 6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8, |
| 7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8, |
| }; |
| |
| static const uint8_t field_scan8x8_cavlc[64+1] = { |
| 0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8, |
| 2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8, |
| 3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8, |
| 5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8, |
| 0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8, |
| 1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8, |
| 3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8, |
| 5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8, |
| 0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8, |
| 1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8, |
| 3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8, |
| 5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8, |
| 1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8, |
| 1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8, |
| 3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8, |
| 6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8, |
| }; |
| |
| // zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)] |
| static const uint8_t zigzag_scan8x8_cavlc[64+1] = { |
| 0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8, |
| 4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8, |
| 3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8, |
| 2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8, |
| 1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8, |
| 3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8, |
| 2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8, |
| 3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8, |
| 0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8, |
| 2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8, |
| 1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8, |
| 4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8, |
| 0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8, |
| 1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8, |
| 0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8, |
| 5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8, |
| }; |
| |
| static const uint8_t dequant4_coeff_init[6][3] = { |
| { 10, 13, 16 }, |
| { 11, 14, 18 }, |
| { 13, 16, 20 }, |
| { 14, 18, 23 }, |
| { 16, 20, 25 }, |
| { 18, 23, 29 }, |
| }; |
| |
| static const uint8_t dequant8_coeff_init_scan[16] = { |
| 0, 3, 4, 3, 3, 1, 5, 1, 4, 5, 2, 5, 3, 1, 5, 1 |
| }; |
| |
| static const uint8_t dequant8_coeff_init[6][6] = { |
| { 20, 18, 32, 19, 25, 24 }, |
| { 22, 19, 35, 21, 28, 26 }, |
| { 26, 23, 42, 24, 33, 31 }, |
| { 28, 25, 45, 26, 35, 33 }, |
| { 32, 28, 51, 30, 40, 38 }, |
| { 36, 32, 58, 34, 46, 43 }, |
| }; |
| |
| static const enum AVPixelFormat h264_hwaccel_pixfmt_list_420[] = { |
| #if CONFIG_H264_DXVA2_HWACCEL |
| AV_PIX_FMT_DXVA2_VLD, |
| #endif |
| #if CONFIG_H264_VAAPI_HWACCEL |
| AV_PIX_FMT_VAAPI_VLD, |
| #endif |
| #if CONFIG_H264_VDA_HWACCEL |
| AV_PIX_FMT_VDA_VLD, |
| AV_PIX_FMT_VDA, |
| #endif |
| #if CONFIG_H264_VDPAU_HWACCEL |
| AV_PIX_FMT_VDPAU, |
| #endif |
| AV_PIX_FMT_YUV420P, |
| AV_PIX_FMT_NONE |
| }; |
| |
| static const enum AVPixelFormat h264_hwaccel_pixfmt_list_jpeg_420[] = { |
| #if CONFIG_H264_DXVA2_HWACCEL |
| AV_PIX_FMT_DXVA2_VLD, |
| #endif |
| #if CONFIG_H264_VAAPI_HWACCEL |
| AV_PIX_FMT_VAAPI_VLD, |
| #endif |
| #if CONFIG_H264_VDA_HWACCEL |
| AV_PIX_FMT_VDA_VLD, |
| AV_PIX_FMT_VDA, |
| #endif |
| #if CONFIG_H264_VDPAU_HWACCEL |
| AV_PIX_FMT_VDPAU, |
| #endif |
| AV_PIX_FMT_YUVJ420P, |
| AV_PIX_FMT_NONE |
| }; |
| |
| |
| static void release_unused_pictures(H264Context *h, int remove_current) |
| { |
| int i; |
| |
| /* release non reference frames */ |
| for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
| if (h->DPB[i].f.buf[0] && !h->DPB[i].reference && |
| (remove_current || &h->DPB[i] != h->cur_pic_ptr)) { |
| ff_h264_unref_picture(h, &h->DPB[i]); |
| } |
| } |
| } |
| |
| static int alloc_scratch_buffers(H264Context *h, int linesize) |
| { |
| int alloc_size = FFALIGN(FFABS(linesize) + 32, 32); |
| |
| if (h->bipred_scratchpad) |
| return 0; |
| |
| h->bipred_scratchpad = av_malloc(16 * 6 * alloc_size); |
| // edge emu needs blocksize + filter length - 1 |
| // (= 21x21 for h264) |
| h->edge_emu_buffer = av_mallocz(alloc_size * 2 * 21); |
| |
| if (!h->bipred_scratchpad || !h->edge_emu_buffer) { |
| av_freep(&h->bipred_scratchpad); |
| av_freep(&h->edge_emu_buffer); |
| return AVERROR(ENOMEM); |
| } |
| |
| return 0; |
| } |
| |
| static int init_table_pools(H264Context *h) |
| { |
| const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1; |
| const int mb_array_size = h->mb_stride * h->mb_height; |
| const int b4_stride = h->mb_width * 4 + 1; |
| const int b4_array_size = b4_stride * h->mb_height * 4; |
| |
| h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride, |
| av_buffer_allocz); |
| h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) * |
| sizeof(uint32_t), av_buffer_allocz); |
| h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) * |
| sizeof(int16_t), av_buffer_allocz); |
| h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz); |
| |
| if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool || |
| !h->ref_index_pool) { |
| av_buffer_pool_uninit(&h->qscale_table_pool); |
| av_buffer_pool_uninit(&h->mb_type_pool); |
| av_buffer_pool_uninit(&h->motion_val_pool); |
| av_buffer_pool_uninit(&h->ref_index_pool); |
| return AVERROR(ENOMEM); |
| } |
| |
| return 0; |
| } |
| |
| static int alloc_picture(H264Context *h, H264Picture *pic) |
| { |
| int i, ret = 0; |
| |
| av_assert0(!pic->f.data[0]); |
| |
| pic->tf.f = &pic->f; |
| ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ? |
| AV_GET_BUFFER_FLAG_REF : 0); |
| if (ret < 0) |
| goto fail; |
| |
| h->linesize = pic->f.linesize[0]; |
| h->uvlinesize = pic->f.linesize[1]; |
| pic->crop = h->sps.crop; |
| pic->crop_top = h->sps.crop_top; |
| pic->crop_left= h->sps.crop_left; |
| |
| if (h->avctx->hwaccel) { |
| const AVHWAccel *hwaccel = h->avctx->hwaccel; |
| av_assert0(!pic->hwaccel_picture_private); |
| if (hwaccel->frame_priv_data_size) { |
| pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size); |
| if (!pic->hwaccel_priv_buf) |
| return AVERROR(ENOMEM); |
| pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data; |
| } |
| } |
| if (!h->avctx->hwaccel && CONFIG_GRAY && h->flags & CODEC_FLAG_GRAY && pic->f.data[2]) { |
| int h_chroma_shift, v_chroma_shift; |
| av_pix_fmt_get_chroma_sub_sample(pic->f.format, |
| &h_chroma_shift, &v_chroma_shift); |
| |
| for(i=0; i<FF_CEIL_RSHIFT(h->avctx->height, v_chroma_shift); i++) { |
| memset(pic->f.data[1] + pic->f.linesize[1]*i, |
| 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift)); |
| memset(pic->f.data[2] + pic->f.linesize[2]*i, |
| 0x80, FF_CEIL_RSHIFT(h->avctx->width, h_chroma_shift)); |
| } |
| } |
| |
| if (!h->qscale_table_pool) { |
| ret = init_table_pools(h); |
| if (ret < 0) |
| goto fail; |
| } |
| |
| pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool); |
| pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool); |
| if (!pic->qscale_table_buf || !pic->mb_type_buf) |
| goto fail; |
| |
| pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1; |
| pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1; |
| |
| for (i = 0; i < 2; i++) { |
| pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool); |
| pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool); |
| if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) |
| goto fail; |
| |
| pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4; |
| pic->ref_index[i] = pic->ref_index_buf[i]->data; |
| } |
| |
| return 0; |
| fail: |
| ff_h264_unref_picture(h, pic); |
| return (ret < 0) ? ret : AVERROR(ENOMEM); |
| } |
| |
| static inline int pic_is_unused(H264Context *h, H264Picture *pic) |
| { |
| if (!pic->f.buf[0]) |
| return 1; |
| if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF)) |
| return 1; |
| return 0; |
| } |
| |
| static int find_unused_picture(H264Context *h) |
| { |
| int i; |
| |
| for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
| if (pic_is_unused(h, &h->DPB[i])) |
| break; |
| } |
| if (i == H264_MAX_PICTURE_COUNT) |
| return AVERROR_INVALIDDATA; |
| |
| if (h->DPB[i].needs_realloc) { |
| h->DPB[i].needs_realloc = 0; |
| ff_h264_unref_picture(h, &h->DPB[i]); |
| } |
| |
| return i; |
| } |
| |
| |
| static void init_dequant8_coeff_table(H264Context *h) |
| { |
| int i, j, q, x; |
| const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8); |
| |
| for (i = 0; i < 6; i++) { |
| h->dequant8_coeff[i] = h->dequant8_buffer[i]; |
| for (j = 0; j < i; j++) |
| if (!memcmp(h->pps.scaling_matrix8[j], h->pps.scaling_matrix8[i], |
| 64 * sizeof(uint8_t))) { |
| h->dequant8_coeff[i] = h->dequant8_buffer[j]; |
| break; |
| } |
| if (j < i) |
| continue; |
| |
| for (q = 0; q < max_qp + 1; q++) { |
| int shift = div6[q]; |
| int idx = rem6[q]; |
| for (x = 0; x < 64; x++) |
| h->dequant8_coeff[i][q][(x >> 3) | ((x & 7) << 3)] = |
| ((uint32_t)dequant8_coeff_init[idx][dequant8_coeff_init_scan[((x >> 1) & 12) | (x & 3)]] * |
| h->pps.scaling_matrix8[i][x]) << shift; |
| } |
| } |
| } |
| |
| static void init_dequant4_coeff_table(H264Context *h) |
| { |
| int i, j, q, x; |
| const int max_qp = 51 + 6 * (h->sps.bit_depth_luma - 8); |
| for (i = 0; i < 6; i++) { |
| h->dequant4_coeff[i] = h->dequant4_buffer[i]; |
| for (j = 0; j < i; j++) |
| if (!memcmp(h->pps.scaling_matrix4[j], h->pps.scaling_matrix4[i], |
| 16 * sizeof(uint8_t))) { |
| h->dequant4_coeff[i] = h->dequant4_buffer[j]; |
| break; |
| } |
| if (j < i) |
| continue; |
| |
| for (q = 0; q < max_qp + 1; q++) { |
| int shift = div6[q] + 2; |
| int idx = rem6[q]; |
| for (x = 0; x < 16; x++) |
| h->dequant4_coeff[i][q][(x >> 2) | ((x << 2) & 0xF)] = |
| ((uint32_t)dequant4_coeff_init[idx][(x & 1) + ((x >> 2) & 1)] * |
| h->pps.scaling_matrix4[i][x]) << shift; |
| } |
| } |
| } |
| |
| void h264_init_dequant_tables(H264Context *h) |
| { |
| int i, x; |
| init_dequant4_coeff_table(h); |
| memset(h->dequant8_coeff, 0, sizeof(h->dequant8_coeff)); |
| |
| if (h->pps.transform_8x8_mode) |
| init_dequant8_coeff_table(h); |
| if (h->sps.transform_bypass) { |
| for (i = 0; i < 6; i++) |
| for (x = 0; x < 16; x++) |
| h->dequant4_coeff[i][0][x] = 1 << 6; |
| if (h->pps.transform_8x8_mode) |
| for (i = 0; i < 6; i++) |
| for (x = 0; x < 64; x++) |
| h->dequant8_coeff[i][0][x] = 1 << 6; |
| } |
| } |
| |
| /** |
| * Mimic alloc_tables(), but for every context thread. |
| */ |
| static void clone_tables(H264Context *dst, H264Context *src, int i) |
| { |
| dst->intra4x4_pred_mode = src->intra4x4_pred_mode + i * 8 * 2 * src->mb_stride; |
| dst->non_zero_count = src->non_zero_count; |
| dst->slice_table = src->slice_table; |
| dst->cbp_table = src->cbp_table; |
| dst->mb2b_xy = src->mb2b_xy; |
| dst->mb2br_xy = src->mb2br_xy; |
| dst->chroma_pred_mode_table = src->chroma_pred_mode_table; |
| dst->mvd_table[0] = src->mvd_table[0] + i * 8 * 2 * src->mb_stride; |
| dst->mvd_table[1] = src->mvd_table[1] + i * 8 * 2 * src->mb_stride; |
| dst->direct_table = src->direct_table; |
| dst->list_counts = src->list_counts; |
| dst->DPB = src->DPB; |
| dst->cur_pic_ptr = src->cur_pic_ptr; |
| dst->cur_pic = src->cur_pic; |
| dst->bipred_scratchpad = NULL; |
| dst->edge_emu_buffer = NULL; |
| ff_h264_pred_init(&dst->hpc, src->avctx->codec_id, src->sps.bit_depth_luma, |
| src->sps.chroma_format_idc); |
| } |
| |
| #define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size)))) |
| #undef REBASE_PICTURE |
| #define REBASE_PICTURE(pic, new_ctx, old_ctx) \ |
| (((pic) && (pic) >= (old_ctx)->DPB && \ |
| (pic) < (old_ctx)->DPB + H264_MAX_PICTURE_COUNT) ? \ |
| &(new_ctx)->DPB[(pic) - (old_ctx)->DPB] : NULL) |
| |
| static void copy_picture_range(H264Picture **to, H264Picture **from, int count, |
| H264Context *new_base, |
| H264Context *old_base) |
| { |
| int i; |
| |
| for (i = 0; i < count; i++) { |
| assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) || |
| IN_RANGE(from[i], old_base->DPB, |
| sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) || |
| !from[i])); |
| to[i] = REBASE_PICTURE(from[i], new_base, old_base); |
| } |
| } |
| |
| static int copy_parameter_set(void **to, void **from, int count, int size) |
| { |
| int i; |
| |
| for (i = 0; i < count; i++) { |
| if (to[i] && !from[i]) { |
| av_freep(&to[i]); |
| } else if (from[i] && !to[i]) { |
| to[i] = av_malloc(size); |
| if (!to[i]) |
| return AVERROR(ENOMEM); |
| } |
| |
| if (from[i]) |
| memcpy(to[i], from[i], size); |
| } |
| |
| return 0; |
| } |
| |
| #define copy_fields(to, from, start_field, end_field) \ |
| memcpy(&(to)->start_field, &(from)->start_field, \ |
| (char *)&(to)->end_field - (char *)&(to)->start_field) |
| |
| static int h264_slice_header_init(H264Context *h, int reinit); |
| |
| int ff_h264_update_thread_context(AVCodecContext *dst, |
| const AVCodecContext *src) |
| { |
| H264Context *h = dst->priv_data, *h1 = src->priv_data; |
| int inited = h->context_initialized, err = 0; |
| int context_reinitialized = 0; |
| int i, ret; |
| |
| if (dst == src) |
| return 0; |
| |
| if (inited && |
| (h->width != h1->width || |
| h->height != h1->height || |
| h->mb_width != h1->mb_width || |
| h->mb_height != h1->mb_height || |
| h->sps.bit_depth_luma != h1->sps.bit_depth_luma || |
| h->sps.chroma_format_idc != h1->sps.chroma_format_idc || |
| h->sps.colorspace != h1->sps.colorspace)) { |
| |
| /* set bits_per_raw_sample to the previous value. the check for changed |
| * bit depth in h264_set_parameter_from_sps() uses it and sets it to |
| * the current value */ |
| h->avctx->bits_per_raw_sample = h->sps.bit_depth_luma; |
| |
| av_freep(&h->bipred_scratchpad); |
| |
| h->width = h1->width; |
| h->height = h1->height; |
| h->mb_height = h1->mb_height; |
| h->mb_width = h1->mb_width; |
| h->mb_num = h1->mb_num; |
| h->mb_stride = h1->mb_stride; |
| h->b_stride = h1->b_stride; |
| // SPS/PPS |
| if ((ret = copy_parameter_set((void **)h->sps_buffers, |
| (void **)h1->sps_buffers, |
| MAX_SPS_COUNT, sizeof(SPS))) < 0) |
| return ret; |
| h->sps = h1->sps; |
| if ((ret = copy_parameter_set((void **)h->pps_buffers, |
| (void **)h1->pps_buffers, |
| MAX_PPS_COUNT, sizeof(PPS))) < 0) |
| return ret; |
| h->pps = h1->pps; |
| |
| if ((err = h264_slice_header_init(h, 1)) < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed\n"); |
| return err; |
| } |
| context_reinitialized = 1; |
| |
| #if 0 |
| h264_set_parameter_from_sps(h); |
| //Note we set context_reinitialized which will cause h264_set_parameter_from_sps to be reexecuted |
| h->cur_chroma_format_idc = h1->cur_chroma_format_idc; |
| #endif |
| } |
| /* update linesize on resize for h264. The h264 decoder doesn't |
| * necessarily call ff_mpv_frame_start in the new thread */ |
| h->linesize = h1->linesize; |
| h->uvlinesize = h1->uvlinesize; |
| |
| /* copy block_offset since frame_start may not be called */ |
| memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset)); |
| |
| if (!inited) { |
| for (i = 0; i < MAX_SPS_COUNT; i++) |
| av_freep(h->sps_buffers + i); |
| |
| for (i = 0; i < MAX_PPS_COUNT; i++) |
| av_freep(h->pps_buffers + i); |
| |
| av_freep(&h->rbsp_buffer[0]); |
| av_freep(&h->rbsp_buffer[1]); |
| memcpy(h, h1, offsetof(H264Context, intra_pcm_ptr)); |
| memcpy(&h->cabac, &h1->cabac, |
| sizeof(H264Context) - offsetof(H264Context, cabac)); |
| av_assert0((void*)&h->cabac == &h->mb_padding + 1); |
| |
| memset(h->sps_buffers, 0, sizeof(h->sps_buffers)); |
| memset(h->pps_buffers, 0, sizeof(h->pps_buffers)); |
| |
| memset(&h->er, 0, sizeof(h->er)); |
| memset(&h->mb, 0, sizeof(h->mb)); |
| memset(&h->mb_luma_dc, 0, sizeof(h->mb_luma_dc)); |
| memset(&h->mb_padding, 0, sizeof(h->mb_padding)); |
| memset(&h->cur_pic, 0, sizeof(h->cur_pic)); |
| |
| h->avctx = dst; |
| h->DPB = NULL; |
| h->qscale_table_pool = NULL; |
| h->mb_type_pool = NULL; |
| h->ref_index_pool = NULL; |
| h->motion_val_pool = NULL; |
| h->intra4x4_pred_mode= NULL; |
| h->non_zero_count = NULL; |
| h->slice_table_base = NULL; |
| h->slice_table = NULL; |
| h->cbp_table = NULL; |
| h->chroma_pred_mode_table = NULL; |
| memset(h->mvd_table, 0, sizeof(h->mvd_table)); |
| h->direct_table = NULL; |
| h->list_counts = NULL; |
| h->mb2b_xy = NULL; |
| h->mb2br_xy = NULL; |
| for (i = 0; i < 2; i++) { |
| h->rbsp_buffer[i] = NULL; |
| h->rbsp_buffer_size[i] = 0; |
| } |
| |
| if (h1->context_initialized) { |
| h->context_initialized = 0; |
| |
| memset(&h->cur_pic, 0, sizeof(h->cur_pic)); |
| av_frame_unref(&h->cur_pic.f); |
| h->cur_pic.tf.f = &h->cur_pic.f; |
| |
| ret = ff_h264_alloc_tables(h); |
| if (ret < 0) { |
| av_log(dst, AV_LOG_ERROR, "Could not allocate memory\n"); |
| return ret; |
| } |
| ret = ff_h264_context_init(h); |
| if (ret < 0) { |
| av_log(dst, AV_LOG_ERROR, "context_init() failed.\n"); |
| return ret; |
| } |
| } |
| |
| h->bipred_scratchpad = NULL; |
| h->edge_emu_buffer = NULL; |
| |
| h->thread_context[0] = h; |
| h->context_initialized = h1->context_initialized; |
| } |
| |
| h->avctx->coded_height = h1->avctx->coded_height; |
| h->avctx->coded_width = h1->avctx->coded_width; |
| h->avctx->width = h1->avctx->width; |
| h->avctx->height = h1->avctx->height; |
| h->coded_picture_number = h1->coded_picture_number; |
| h->first_field = h1->first_field; |
| h->picture_structure = h1->picture_structure; |
| h->qscale = h1->qscale; |
| h->droppable = h1->droppable; |
| h->low_delay = h1->low_delay; |
| |
| for (i = 0; h->DPB && i < H264_MAX_PICTURE_COUNT; i++) { |
| ff_h264_unref_picture(h, &h->DPB[i]); |
| if (h1->DPB && h1->DPB[i].f.buf[0] && |
| (ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0) |
| return ret; |
| } |
| |
| h->cur_pic_ptr = REBASE_PICTURE(h1->cur_pic_ptr, h, h1); |
| ff_h264_unref_picture(h, &h->cur_pic); |
| if (h1->cur_pic.f.buf[0] && (ret = ff_h264_ref_picture(h, &h->cur_pic, &h1->cur_pic)) < 0) |
| return ret; |
| |
| h->workaround_bugs = h1->workaround_bugs; |
| h->low_delay = h1->low_delay; |
| h->droppable = h1->droppable; |
| |
| // extradata/NAL handling |
| h->is_avc = h1->is_avc; |
| |
| // SPS/PPS |
| if ((ret = copy_parameter_set((void **)h->sps_buffers, |
| (void **)h1->sps_buffers, |
| MAX_SPS_COUNT, sizeof(SPS))) < 0) |
| return ret; |
| h->sps = h1->sps; |
| if ((ret = copy_parameter_set((void **)h->pps_buffers, |
| (void **)h1->pps_buffers, |
| MAX_PPS_COUNT, sizeof(PPS))) < 0) |
| return ret; |
| h->pps = h1->pps; |
| |
| // Dequantization matrices |
| // FIXME these are big - can they be only copied when PPS changes? |
| copy_fields(h, h1, dequant4_buffer, dequant4_coeff); |
| |
| for (i = 0; i < 6; i++) |
| h->dequant4_coeff[i] = h->dequant4_buffer[0] + |
| (h1->dequant4_coeff[i] - h1->dequant4_buffer[0]); |
| |
| for (i = 0; i < 6; i++) |
| h->dequant8_coeff[i] = h->dequant8_buffer[0] + |
| (h1->dequant8_coeff[i] - h1->dequant8_buffer[0]); |
| |
| h->dequant_coeff_pps = h1->dequant_coeff_pps; |
| |
| // POC timing |
| copy_fields(h, h1, poc_lsb, redundant_pic_count); |
| |
| // reference lists |
| copy_fields(h, h1, short_ref, cabac_init_idc); |
| |
| copy_picture_range(h->short_ref, h1->short_ref, 32, h, h1); |
| copy_picture_range(h->long_ref, h1->long_ref, 32, h, h1); |
| copy_picture_range(h->delayed_pic, h1->delayed_pic, |
| MAX_DELAYED_PIC_COUNT + 2, h, h1); |
| |
| h->frame_recovered = h1->frame_recovered; |
| |
| if (context_reinitialized) |
| ff_h264_set_parameter_from_sps(h); |
| |
| if (!h->cur_pic_ptr) |
| return 0; |
| |
| if (!h->droppable) { |
| err = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
| h->prev_poc_msb = h->poc_msb; |
| h->prev_poc_lsb = h->poc_lsb; |
| } |
| h->prev_frame_num_offset = h->frame_num_offset; |
| h->prev_frame_num = h->frame_num; |
| h->outputed_poc = h->next_outputed_poc; |
| |
| h->recovery_frame = h1->recovery_frame; |
| |
| return err; |
| } |
| |
| static int h264_frame_start(H264Context *h) |
| { |
| H264Picture *pic; |
| int i, ret; |
| const int pixel_shift = h->pixel_shift; |
| int c[4] = { |
| 1<<(h->sps.bit_depth_luma-1), |
| 1<<(h->sps.bit_depth_chroma-1), |
| 1<<(h->sps.bit_depth_chroma-1), |
| -1 |
| }; |
| |
| if (!ff_thread_can_start_frame(h->avctx)) { |
| av_log(h->avctx, AV_LOG_ERROR, "Attempt to start a frame outside SETUP state\n"); |
| return -1; |
| } |
| |
| release_unused_pictures(h, 1); |
| h->cur_pic_ptr = NULL; |
| |
| i = find_unused_picture(h); |
| if (i < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
| return i; |
| } |
| pic = &h->DPB[i]; |
| |
| pic->reference = h->droppable ? 0 : h->picture_structure; |
| pic->f.coded_picture_number = h->coded_picture_number++; |
| pic->field_picture = h->picture_structure != PICT_FRAME; |
| |
| /* |
| * Zero key_frame here; IDR markings per slice in frame or fields are ORed |
| * in later. |
| * See decode_nal_units(). |
| */ |
| pic->f.key_frame = 0; |
| pic->mmco_reset = 0; |
| pic->recovered = 0; |
| pic->invalid_gap = 0; |
| pic->sei_recovery_frame_cnt = h->sei_recovery_frame_cnt; |
| |
| if ((ret = alloc_picture(h, pic)) < 0) |
| return ret; |
| if(!h->frame_recovered && !h->avctx->hwaccel && |
| !(h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU)) |
| avpriv_color_frame(&pic->f, c); |
| |
| h->cur_pic_ptr = pic; |
| ff_h264_unref_picture(h, &h->cur_pic); |
| if (CONFIG_ERROR_RESILIENCE) { |
| ff_h264_set_erpic(&h->er.cur_pic, NULL); |
| } |
| |
| if ((ret = ff_h264_ref_picture(h, &h->cur_pic, h->cur_pic_ptr)) < 0) |
| return ret; |
| |
| if (CONFIG_ERROR_RESILIENCE) { |
| ff_er_frame_start(&h->er); |
| ff_h264_set_erpic(&h->er.last_pic, NULL); |
| ff_h264_set_erpic(&h->er.next_pic, NULL); |
| } |
| |
| assert(h->linesize && h->uvlinesize); |
| |
| for (i = 0; i < 16; i++) { |
| h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->linesize * ((scan8[i] - scan8[0]) >> 3); |
| h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->linesize * ((scan8[i] - scan8[0]) >> 3); |
| } |
| for (i = 0; i < 16; i++) { |
| h->block_offset[16 + i] = |
| h->block_offset[32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3); |
| h->block_offset[48 + 16 + i] = |
| h->block_offset[48 + 32 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * h->uvlinesize * ((scan8[i] - scan8[0]) >> 3); |
| } |
| |
| /* We mark the current picture as non-reference after allocating it, so |
| * that if we break out due to an error it can be released automatically |
| * in the next ff_mpv_frame_start(). |
| */ |
| h->cur_pic_ptr->reference = 0; |
| |
| h->cur_pic_ptr->field_poc[0] = h->cur_pic_ptr->field_poc[1] = INT_MAX; |
| |
| h->next_output_pic = NULL; |
| |
| assert(h->cur_pic_ptr->long_ref == 0); |
| |
| return 0; |
| } |
| |
| static av_always_inline void backup_mb_border(H264Context *h, uint8_t *src_y, |
| uint8_t *src_cb, uint8_t *src_cr, |
| int linesize, int uvlinesize, |
| int simple) |
| { |
| uint8_t *top_border; |
| int top_idx = 1; |
| const int pixel_shift = h->pixel_shift; |
| int chroma444 = CHROMA444(h); |
| int chroma422 = CHROMA422(h); |
| |
| src_y -= linesize; |
| src_cb -= uvlinesize; |
| src_cr -= uvlinesize; |
| |
| if (!simple && FRAME_MBAFF(h)) { |
| if (h->mb_y & 1) { |
| if (!MB_MBAFF(h)) { |
| top_border = h->top_borders[0][h->mb_x]; |
| AV_COPY128(top_border, src_y + 15 * linesize); |
| if (pixel_shift) |
| AV_COPY128(top_border + 16, src_y + 15 * linesize + 16); |
| if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
| if (chroma444) { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize); |
| AV_COPY128(top_border + 48, src_cb + 15 * uvlinesize + 16); |
| AV_COPY128(top_border + 64, src_cr + 15 * uvlinesize); |
| AV_COPY128(top_border + 80, src_cr + 15 * uvlinesize + 16); |
| } else { |
| AV_COPY128(top_border + 16, src_cb + 15 * uvlinesize); |
| AV_COPY128(top_border + 32, src_cr + 15 * uvlinesize); |
| } |
| } else if (chroma422) { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 15 * uvlinesize); |
| AV_COPY128(top_border + 48, src_cr + 15 * uvlinesize); |
| } else { |
| AV_COPY64(top_border + 16, src_cb + 15 * uvlinesize); |
| AV_COPY64(top_border + 24, src_cr + 15 * uvlinesize); |
| } |
| } else { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 7 * uvlinesize); |
| AV_COPY128(top_border + 48, src_cr + 7 * uvlinesize); |
| } else { |
| AV_COPY64(top_border + 16, src_cb + 7 * uvlinesize); |
| AV_COPY64(top_border + 24, src_cr + 7 * uvlinesize); |
| } |
| } |
| } |
| } |
| } else if (MB_MBAFF(h)) { |
| top_idx = 0; |
| } else |
| return; |
| } |
| |
| top_border = h->top_borders[top_idx][h->mb_x]; |
| /* There are two lines saved, the line above the top macroblock |
| * of a pair, and the line above the bottom macroblock. */ |
| AV_COPY128(top_border, src_y + 16 * linesize); |
| if (pixel_shift) |
| AV_COPY128(top_border + 16, src_y + 16 * linesize + 16); |
| |
| if (simple || !CONFIG_GRAY || !(h->flags & CODEC_FLAG_GRAY)) { |
| if (chroma444) { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 16 * linesize); |
| AV_COPY128(top_border + 48, src_cb + 16 * linesize + 16); |
| AV_COPY128(top_border + 64, src_cr + 16 * linesize); |
| AV_COPY128(top_border + 80, src_cr + 16 * linesize + 16); |
| } else { |
| AV_COPY128(top_border + 16, src_cb + 16 * linesize); |
| AV_COPY128(top_border + 32, src_cr + 16 * linesize); |
| } |
| } else if (chroma422) { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 16 * uvlinesize); |
| AV_COPY128(top_border + 48, src_cr + 16 * uvlinesize); |
| } else { |
| AV_COPY64(top_border + 16, src_cb + 16 * uvlinesize); |
| AV_COPY64(top_border + 24, src_cr + 16 * uvlinesize); |
| } |
| } else { |
| if (pixel_shift) { |
| AV_COPY128(top_border + 32, src_cb + 8 * uvlinesize); |
| AV_COPY128(top_border + 48, src_cr + 8 * uvlinesize); |
| } else { |
| AV_COPY64(top_border + 16, src_cb + 8 * uvlinesize); |
| AV_COPY64(top_border + 24, src_cr + 8 * uvlinesize); |
| } |
| } |
| } |
| } |
| |
| /** |
| * Initialize implicit_weight table. |
| * @param field 0/1 initialize the weight for interlaced MBAFF |
| * -1 initializes the rest |
| */ |
| static void implicit_weight_table(H264Context *h, int field) |
| { |
| int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1; |
| |
| for (i = 0; i < 2; i++) { |
| h->luma_weight_flag[i] = 0; |
| h->chroma_weight_flag[i] = 0; |
| } |
| |
| if (field < 0) { |
| if (h->picture_structure == PICT_FRAME) { |
| cur_poc = h->cur_pic_ptr->poc; |
| } else { |
| cur_poc = h->cur_pic_ptr->field_poc[h->picture_structure - 1]; |
| } |
| if (h->ref_count[0] == 1 && h->ref_count[1] == 1 && !FRAME_MBAFF(h) && |
| h->ref_list[0][0].poc + h->ref_list[1][0].poc == 2 * cur_poc) { |
| h->use_weight = 0; |
| h->use_weight_chroma = 0; |
| return; |
| } |
| ref_start = 0; |
| ref_count0 = h->ref_count[0]; |
| ref_count1 = h->ref_count[1]; |
| } else { |
| cur_poc = h->cur_pic_ptr->field_poc[field]; |
| ref_start = 16; |
| ref_count0 = 16 + 2 * h->ref_count[0]; |
| ref_count1 = 16 + 2 * h->ref_count[1]; |
| } |
| |
| h->use_weight = 2; |
| h->use_weight_chroma = 2; |
| h->luma_log2_weight_denom = 5; |
| h->chroma_log2_weight_denom = 5; |
| |
| for (ref0 = ref_start; ref0 < ref_count0; ref0++) { |
| int poc0 = h->ref_list[0][ref0].poc; |
| for (ref1 = ref_start; ref1 < ref_count1; ref1++) { |
| int w = 32; |
| if (!h->ref_list[0][ref0].long_ref && !h->ref_list[1][ref1].long_ref) { |
| int poc1 = h->ref_list[1][ref1].poc; |
| int td = av_clip(poc1 - poc0, -128, 127); |
| if (td) { |
| int tb = av_clip(cur_poc - poc0, -128, 127); |
| int tx = (16384 + (FFABS(td) >> 1)) / td; |
| int dist_scale_factor = (tb * tx + 32) >> 8; |
| if (dist_scale_factor >= -64 && dist_scale_factor <= 128) |
| w = 64 - dist_scale_factor; |
| } |
| } |
| if (field < 0) { |
| h->implicit_weight[ref0][ref1][0] = |
| h->implicit_weight[ref0][ref1][1] = w; |
| } else { |
| h->implicit_weight[ref0][ref1][field] = w; |
| } |
| } |
| } |
| } |
| |
| /** |
| * initialize scan tables |
| */ |
| static void init_scan_tables(H264Context *h) |
| { |
| int i; |
| for (i = 0; i < 16; i++) { |
| #define TRANSPOSE(x) ((x) >> 2) | (((x) << 2) & 0xF) |
| h->zigzag_scan[i] = TRANSPOSE(zigzag_scan[i]); |
| h->field_scan[i] = TRANSPOSE(field_scan[i]); |
| #undef TRANSPOSE |
| } |
| for (i = 0; i < 64; i++) { |
| #define TRANSPOSE(x) ((x) >> 3) | (((x) & 7) << 3) |
| h->zigzag_scan8x8[i] = TRANSPOSE(ff_zigzag_direct[i]); |
| h->zigzag_scan8x8_cavlc[i] = TRANSPOSE(zigzag_scan8x8_cavlc[i]); |
| h->field_scan8x8[i] = TRANSPOSE(field_scan8x8[i]); |
| h->field_scan8x8_cavlc[i] = TRANSPOSE(field_scan8x8_cavlc[i]); |
| #undef TRANSPOSE |
| } |
| if (h->sps.transform_bypass) { // FIXME same ugly |
| memcpy(h->zigzag_scan_q0 , zigzag_scan , sizeof(h->zigzag_scan_q0 )); |
| memcpy(h->zigzag_scan8x8_q0 , ff_zigzag_direct , sizeof(h->zigzag_scan8x8_q0 )); |
| memcpy(h->zigzag_scan8x8_cavlc_q0 , zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0)); |
| memcpy(h->field_scan_q0 , field_scan , sizeof(h->field_scan_q0 )); |
| memcpy(h->field_scan8x8_q0 , field_scan8x8 , sizeof(h->field_scan8x8_q0 )); |
| memcpy(h->field_scan8x8_cavlc_q0 , field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 )); |
| } else { |
| memcpy(h->zigzag_scan_q0 , h->zigzag_scan , sizeof(h->zigzag_scan_q0 )); |
| memcpy(h->zigzag_scan8x8_q0 , h->zigzag_scan8x8 , sizeof(h->zigzag_scan8x8_q0 )); |
| memcpy(h->zigzag_scan8x8_cavlc_q0 , h->zigzag_scan8x8_cavlc , sizeof(h->zigzag_scan8x8_cavlc_q0)); |
| memcpy(h->field_scan_q0 , h->field_scan , sizeof(h->field_scan_q0 )); |
| memcpy(h->field_scan8x8_q0 , h->field_scan8x8 , sizeof(h->field_scan8x8_q0 )); |
| memcpy(h->field_scan8x8_cavlc_q0 , h->field_scan8x8_cavlc , sizeof(h->field_scan8x8_cavlc_q0 )); |
| } |
| } |
| |
| /** |
| * Replicate H264 "master" context to thread contexts. |
| */ |
| static int clone_slice(H264Context *dst, H264Context *src) |
| { |
| memcpy(dst->block_offset, src->block_offset, sizeof(dst->block_offset)); |
| dst->cur_pic_ptr = src->cur_pic_ptr; |
| dst->cur_pic = src->cur_pic; |
| dst->linesize = src->linesize; |
| dst->uvlinesize = src->uvlinesize; |
| dst->first_field = src->first_field; |
| |
| dst->prev_poc_msb = src->prev_poc_msb; |
| dst->prev_poc_lsb = src->prev_poc_lsb; |
| dst->prev_frame_num_offset = src->prev_frame_num_offset; |
| dst->prev_frame_num = src->prev_frame_num; |
| dst->short_ref_count = src->short_ref_count; |
| |
| memcpy(dst->short_ref, src->short_ref, sizeof(dst->short_ref)); |
| memcpy(dst->long_ref, src->long_ref, sizeof(dst->long_ref)); |
| memcpy(dst->default_ref_list, src->default_ref_list, sizeof(dst->default_ref_list)); |
| |
| memcpy(dst->dequant4_coeff, src->dequant4_coeff, sizeof(src->dequant4_coeff)); |
| memcpy(dst->dequant8_coeff, src->dequant8_coeff, sizeof(src->dequant8_coeff)); |
| |
| return 0; |
| } |
| |
| static enum AVPixelFormat get_pixel_format(H264Context *h, int force_callback) |
| { |
| enum AVPixelFormat pix_fmts[2]; |
| const enum AVPixelFormat *choices = pix_fmts; |
| int i; |
| |
| pix_fmts[1] = AV_PIX_FMT_NONE; |
| |
| switch (h->sps.bit_depth_luma) { |
| case 9: |
| if (CHROMA444(h)) { |
| if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| pix_fmts[0] = AV_PIX_FMT_GBRP9; |
| } else |
| pix_fmts[0] = AV_PIX_FMT_YUV444P9; |
| } else if (CHROMA422(h)) |
| pix_fmts[0] = AV_PIX_FMT_YUV422P9; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV420P9; |
| break; |
| case 10: |
| if (CHROMA444(h)) { |
| if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| pix_fmts[0] = AV_PIX_FMT_GBRP10; |
| } else |
| pix_fmts[0] = AV_PIX_FMT_YUV444P10; |
| } else if (CHROMA422(h)) |
| pix_fmts[0] = AV_PIX_FMT_YUV422P10; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV420P10; |
| break; |
| case 12: |
| if (CHROMA444(h)) { |
| if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| pix_fmts[0] = AV_PIX_FMT_GBRP12; |
| } else |
| pix_fmts[0] = AV_PIX_FMT_YUV444P12; |
| } else if (CHROMA422(h)) |
| pix_fmts[0] = AV_PIX_FMT_YUV422P12; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV420P12; |
| break; |
| case 14: |
| if (CHROMA444(h)) { |
| if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
| pix_fmts[0] = AV_PIX_FMT_GBRP14; |
| } else |
| pix_fmts[0] = AV_PIX_FMT_YUV444P14; |
| } else if (CHROMA422(h)) |
| pix_fmts[0] = AV_PIX_FMT_YUV422P14; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV420P14; |
| break; |
| case 8: |
| if (CHROMA444(h)) { |
| if (h->avctx->colorspace == AVCOL_SPC_YCGCO) |
| av_log(h->avctx, AV_LOG_WARNING, "Detected unsupported YCgCo colorspace.\n"); |
| if (h->avctx->colorspace == AVCOL_SPC_RGB) |
| pix_fmts[0] = AV_PIX_FMT_GBRP; |
| else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| pix_fmts[0] = AV_PIX_FMT_YUVJ444P; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV444P; |
| } else if (CHROMA422(h)) { |
| if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| pix_fmts[0] = AV_PIX_FMT_YUVJ422P; |
| else |
| pix_fmts[0] = AV_PIX_FMT_YUV422P; |
| } else { |
| if (h->avctx->codec->pix_fmts) |
| choices = h->avctx->codec->pix_fmts; |
| else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
| choices = h264_hwaccel_pixfmt_list_jpeg_420; |
| else |
| choices = h264_hwaccel_pixfmt_list_420; |
| } |
| break; |
| default: |
| av_log(h->avctx, AV_LOG_ERROR, |
| "Unsupported bit depth %d\n", h->sps.bit_depth_luma); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| for (i=0; choices[i] != AV_PIX_FMT_NONE; i++) |
| if (choices[i] == h->avctx->pix_fmt && !force_callback) |
| return choices[i]; |
| return ff_thread_get_format(h->avctx, choices); |
| } |
| |
| /* export coded and cropped frame dimensions to AVCodecContext */ |
| static int init_dimensions(H264Context *h) |
| { |
| int width = h->width - (h->sps.crop_right + h->sps.crop_left); |
| int height = h->height - (h->sps.crop_top + h->sps.crop_bottom); |
| int crop_present = h->sps.crop_left || h->sps.crop_top || |
| h->sps.crop_right || h->sps.crop_bottom; |
| av_assert0(h->sps.crop_right + h->sps.crop_left < (unsigned)h->width); |
| av_assert0(h->sps.crop_top + h->sps.crop_bottom < (unsigned)h->height); |
| |
| /* handle container cropping */ |
| if (!crop_present && |
| FFALIGN(h->avctx->width, 16) == h->width && |
| FFALIGN(h->avctx->height, 16) == h->height) { |
| width = h->avctx->width; |
| height = h->avctx->height; |
| } |
| |
| if (width <= 0 || height <= 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "Invalid cropped dimensions: %dx%d.\n", |
| width, height); |
| if (h->avctx->err_recognition & AV_EF_EXPLODE) |
| return AVERROR_INVALIDDATA; |
| |
| av_log(h->avctx, AV_LOG_WARNING, "Ignoring cropping information.\n"); |
| h->sps.crop_bottom = |
| h->sps.crop_top = |
| h->sps.crop_right = |
| h->sps.crop_left = |
| h->sps.crop = 0; |
| |
| width = h->width; |
| height = h->height; |
| } |
| |
| h->avctx->coded_width = h->width; |
| h->avctx->coded_height = h->height; |
| h->avctx->width = width; |
| h->avctx->height = height; |
| |
| return 0; |
| } |
| |
| static int h264_slice_header_init(H264Context *h, int reinit) |
| { |
| int nb_slices = (HAVE_THREADS && |
| h->avctx->active_thread_type & FF_THREAD_SLICE) ? |
| h->avctx->thread_count : 1; |
| int i, ret; |
| |
| ff_set_sar(h->avctx, h->sps.sar); |
| av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt, |
| &h->chroma_x_shift, &h->chroma_y_shift); |
| |
| if (h->sps.timing_info_present_flag) { |
| int64_t den = h->sps.time_scale; |
| if (h->x264_build < 44U) |
| den *= 2; |
| av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num, |
| h->sps.num_units_in_tick * h->avctx->ticks_per_frame, den, 1 << 30); |
| } |
| |
| if (reinit) |
| ff_h264_free_tables(h, 0); |
| h->first_field = 0; |
| h->prev_interlaced_frame = 1; |
| |
| init_scan_tables(h); |
| ret = ff_h264_alloc_tables(h); |
| if (ret < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "Could not allocate memory\n"); |
| goto fail; |
| } |
| |
| if (nb_slices > H264_MAX_THREADS || (nb_slices > h->mb_height && h->mb_height)) { |
| int max_slices; |
| if (h->mb_height) |
| max_slices = FFMIN(H264_MAX_THREADS, h->mb_height); |
| else |
| max_slices = H264_MAX_THREADS; |
| av_log(h->avctx, AV_LOG_WARNING, "too many threads/slices %d," |
| " reducing to %d\n", nb_slices, max_slices); |
| nb_slices = max_slices; |
| } |
| h->slice_context_count = nb_slices; |
| |
| if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) { |
| ret = ff_h264_context_init(h); |
| if (ret < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
| goto fail; |
| } |
| } else { |
| for (i = 1; i < h->slice_context_count; i++) { |
| H264Context *c; |
| c = h->thread_context[i] = av_mallocz(sizeof(H264Context)); |
| if (!c) { |
| ret = AVERROR(ENOMEM); |
| goto fail; |
| } |
| c->avctx = h->avctx; |
| if (CONFIG_ERROR_RESILIENCE) { |
| c->mecc = h->mecc; |
| } |
| c->vdsp = h->vdsp; |
| c->h264dsp = h->h264dsp; |
| c->h264qpel = h->h264qpel; |
| c->h264chroma = h->h264chroma; |
| c->sps = h->sps; |
| c->pps = h->pps; |
| c->pixel_shift = h->pixel_shift; |
| c->cur_chroma_format_idc = h->cur_chroma_format_idc; |
| c->width = h->width; |
| c->height = h->height; |
| c->linesize = h->linesize; |
| c->uvlinesize = h->uvlinesize; |
| c->chroma_x_shift = h->chroma_x_shift; |
| c->chroma_y_shift = h->chroma_y_shift; |
| c->qscale = h->qscale; |
| c->droppable = h->droppable; |
| c->data_partitioning = h->data_partitioning; |
| c->low_delay = h->low_delay; |
| c->mb_width = h->mb_width; |
| c->mb_height = h->mb_height; |
| c->mb_stride = h->mb_stride; |
| c->mb_num = h->mb_num; |
| c->flags = h->flags; |
| c->workaround_bugs = h->workaround_bugs; |
| c->pict_type = h->pict_type; |
| |
| init_scan_tables(c); |
| clone_tables(c, h, i); |
| c->context_initialized = 1; |
| } |
| |
| for (i = 0; i < h->slice_context_count; i++) |
| if ((ret = ff_h264_context_init(h->thread_context[i])) < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
| goto fail; |
| } |
| } |
| |
| h->context_initialized = 1; |
| |
| return 0; |
| fail: |
| ff_h264_free_tables(h, 0); |
| h->context_initialized = 0; |
| return ret; |
| } |
| |
| static enum AVPixelFormat non_j_pixfmt(enum AVPixelFormat a) |
| { |
| switch (a) { |
| case AV_PIX_FMT_YUVJ420P: return AV_PIX_FMT_YUV420P; |
| case AV_PIX_FMT_YUVJ422P: return AV_PIX_FMT_YUV422P; |
| case AV_PIX_FMT_YUVJ444P: return AV_PIX_FMT_YUV444P; |
| default: |
| return a; |
| } |
| } |
| |
| /** |
| * Decode a slice header. |
| * This will (re)intialize the decoder and call h264_frame_start() as needed. |
| * |
| * @param h h264context |
| * @param h0 h264 master context (differs from 'h' when doing sliced based |
| * parallel decoding) |
| * |
| * @return 0 if okay, <0 if an error occurred, 1 if decoding must not be multithreaded |
| */ |
| int ff_h264_decode_slice_header(H264Context *h, H264Context *h0) |
| { |
| unsigned int first_mb_in_slice; |
| unsigned int pps_id; |
| int ret; |
| unsigned int slice_type, tmp, i, j; |
| int last_pic_structure, last_pic_droppable; |
| int must_reinit; |
| int needs_reinit = 0; |
| int field_pic_flag, bottom_field_flag; |
| int first_slice = h == h0 && !h0->current_slice; |
| int frame_num, picture_structure, droppable; |
| int mb_aff_frame, last_mb_aff_frame; |
| PPS *pps; |
| |
| h->qpel_put = h->h264qpel.put_h264_qpel_pixels_tab; |
| h->qpel_avg = h->h264qpel.avg_h264_qpel_pixels_tab; |
| |
| first_mb_in_slice = get_ue_golomb_long(&h->gb); |
| |
| if (first_mb_in_slice == 0) { // FIXME better field boundary detection |
| if (h0->current_slice && h->cur_pic_ptr && FIELD_PICTURE(h)) { |
| ff_h264_field_end(h, 1); |
| } |
| |
| h0->current_slice = 0; |
| if (!h0->first_field) { |
| if (h->cur_pic_ptr && !h->droppable) { |
| ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, |
| h->picture_structure == PICT_BOTTOM_FIELD); |
| } |
| h->cur_pic_ptr = NULL; |
| } |
| } |
| |
| slice_type = get_ue_golomb_31(&h->gb); |
| if (slice_type > 9) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "slice type %d too large at %d %d\n", |
| slice_type, h->mb_x, h->mb_y); |
| return AVERROR_INVALIDDATA; |
| } |
| if (slice_type > 4) { |
| slice_type -= 5; |
| h->slice_type_fixed = 1; |
| } else |
| h->slice_type_fixed = 0; |
| |
| slice_type = golomb_to_pict_type[slice_type]; |
| h->slice_type = slice_type; |
| h->slice_type_nos = slice_type & 3; |
| |
| if (h->nal_unit_type == NAL_IDR_SLICE && |
| h->slice_type_nos != AV_PICTURE_TYPE_I) { |
| av_log(h->avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if ( |
| (h->avctx->skip_frame >= AVDISCARD_NONREF && !h->nal_ref_idc) || |
| (h->avctx->skip_frame >= AVDISCARD_BIDIR && h->slice_type_nos == AV_PICTURE_TYPE_B) || |
| (h->avctx->skip_frame >= AVDISCARD_NONINTRA && h->slice_type_nos != AV_PICTURE_TYPE_I) || |
| (h->avctx->skip_frame >= AVDISCARD_NONKEY && h->nal_unit_type != NAL_IDR_SLICE) || |
| h->avctx->skip_frame >= AVDISCARD_ALL) { |
| return SLICE_SKIPED; |
| } |
| |
| // to make a few old functions happy, it's wrong though |
| h->pict_type = h->slice_type; |
| |
| pps_id = get_ue_golomb(&h->gb); |
| if (pps_id >= MAX_PPS_COUNT) { |
| av_log(h->avctx, AV_LOG_ERROR, "pps_id %u out of range\n", pps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| if (!h0->pps_buffers[pps_id]) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "non-existing PPS %u referenced\n", |
| pps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| if (h0->au_pps_id >= 0 && pps_id != h0->au_pps_id) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "PPS change from %d to %d forbidden\n", |
| h0->au_pps_id, pps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| pps = h0->pps_buffers[pps_id]; |
| |
| if (!h0->sps_buffers[pps->sps_id]) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "non-existing SPS %u referenced\n", |
| h->pps.sps_id); |
| return AVERROR_INVALIDDATA; |
| } |
| if (first_slice) |
| h->pps = *h0->pps_buffers[pps_id]; |
| |
| if (pps->sps_id != h->sps.sps_id || |
| pps->sps_id != h->current_sps_id || |
| h0->sps_buffers[pps->sps_id]->new) { |
| |
| if (!first_slice) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "SPS changed in the middle of the frame\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| h->sps = *h0->sps_buffers[h->pps.sps_id]; |
| |
| if (h->mb_width != h->sps.mb_width || |
| h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) || |
| h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma || |
| h->cur_chroma_format_idc != h->sps.chroma_format_idc |
| ) |
| needs_reinit = 1; |
| |
| if (h->bit_depth_luma != h->sps.bit_depth_luma || |
| h->chroma_format_idc != h->sps.chroma_format_idc) { |
| h->bit_depth_luma = h->sps.bit_depth_luma; |
| h->chroma_format_idc = h->sps.chroma_format_idc; |
| needs_reinit = 1; |
| } |
| if ((ret = ff_h264_set_parameter_from_sps(h)) < 0) |
| return ret; |
| } |
| |
| h->avctx->profile = ff_h264_get_profile(&h->sps); |
| h->avctx->level = h->sps.level_idc; |
| h->avctx->refs = h->sps.ref_frame_count; |
| |
| must_reinit = (h->context_initialized && |
| ( 16*h->sps.mb_width != h->avctx->coded_width |
| || 16*h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) != h->avctx->coded_height |
| || h->avctx->bits_per_raw_sample != h->sps.bit_depth_luma |
| || h->cur_chroma_format_idc != h->sps.chroma_format_idc |
| || h->mb_width != h->sps.mb_width |
| || h->mb_height != h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag) |
| )); |
| if (h0->avctx->pix_fmt == AV_PIX_FMT_NONE |
| || (non_j_pixfmt(h0->avctx->pix_fmt) != non_j_pixfmt(get_pixel_format(h0, 0)))) |
| must_reinit = 1; |
| |
| if (first_slice && av_cmp_q(h->sps.sar, h->avctx->sample_aspect_ratio)) |
| must_reinit = 1; |
| |
| h->mb_width = h->sps.mb_width; |
| h->mb_height = h->sps.mb_height * (2 - h->sps.frame_mbs_only_flag); |
| h->mb_num = h->mb_width * h->mb_height; |
| h->mb_stride = h->mb_width + 1; |
| |
| h->b_stride = h->mb_width * 4; |
| |
| h->chroma_y_shift = h->sps.chroma_format_idc <= 1; // 400 uses yuv420p |
| |
| h->width = 16 * h->mb_width; |
| h->height = 16 * h->mb_height; |
| |
| ret = init_dimensions(h); |
| if (ret < 0) |
| return ret; |
| |
| if (h->sps.video_signal_type_present_flag) { |
| h->avctx->color_range = h->sps.full_range>0 ? AVCOL_RANGE_JPEG |
| : AVCOL_RANGE_MPEG; |
| if (h->sps.colour_description_present_flag) { |
| if (h->avctx->colorspace != h->sps.colorspace) |
| needs_reinit = 1; |
| h->avctx->color_primaries = h->sps.color_primaries; |
| h->avctx->color_trc = h->sps.color_trc; |
| h->avctx->colorspace = h->sps.colorspace; |
| } |
| } |
| |
| if (h->context_initialized && |
| (must_reinit || needs_reinit)) { |
| if (h != h0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "changing width %d -> %d / height %d -> %d on " |
| "slice %d\n", |
| h->width, h->avctx->coded_width, |
| h->height, h->avctx->coded_height, |
| h0->current_slice + 1); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| av_assert1(first_slice); |
| |
| ff_h264_flush_change(h); |
| |
| if ((ret = get_pixel_format(h, 1)) < 0) |
| return ret; |
| h->avctx->pix_fmt = ret; |
| |
| av_log(h->avctx, AV_LOG_INFO, "Reinit context to %dx%d, " |
| "pix_fmt: %s\n", h->width, h->height, av_get_pix_fmt_name(h->avctx->pix_fmt)); |
| |
| if ((ret = h264_slice_header_init(h, 1)) < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "h264_slice_header_init() failed\n"); |
| return ret; |
| } |
| } |
| if (!h->context_initialized) { |
| if (h != h0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "Cannot (re-)initialize context during parallel decoding.\n"); |
| return AVERROR_PATCHWELCOME; |
| } |
| |
| if ((ret = get_pixel_format(h, 1)) < 0) |
| return ret; |
| h->avctx->pix_fmt = ret; |
| |
| if ((ret = h264_slice_header_init(h, 0)) < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "h264_slice_header_init() failed\n"); |
| return ret; |
| } |
| } |
| |
| if (first_slice && h->dequant_coeff_pps != pps_id) { |
| h->dequant_coeff_pps = pps_id; |
| h264_init_dequant_tables(h); |
| } |
| |
| frame_num = get_bits(&h->gb, h->sps.log2_max_frame_num); |
| if (!first_slice) { |
| if (h0->frame_num != frame_num) { |
| av_log(h->avctx, AV_LOG_ERROR, "Frame num change from %d to %d\n", |
| h0->frame_num, frame_num); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| h->mb_mbaff = 0; |
| mb_aff_frame = 0; |
| last_mb_aff_frame = h0->mb_aff_frame; |
| last_pic_structure = h0->picture_structure; |
| last_pic_droppable = h0->droppable; |
| droppable = h->nal_ref_idc == 0; |
| if (h->sps.frame_mbs_only_flag) { |
| picture_structure = PICT_FRAME; |
| } else { |
| if (!h->sps.direct_8x8_inference_flag && slice_type == AV_PICTURE_TYPE_B) { |
| av_log(h->avctx, AV_LOG_ERROR, "This stream was generated by a broken encoder, invalid 8x8 inference\n"); |
| return -1; |
| } |
| field_pic_flag = get_bits1(&h->gb); |
| |
| if (field_pic_flag) { |
| bottom_field_flag = get_bits1(&h->gb); |
| picture_structure = PICT_TOP_FIELD + bottom_field_flag; |
| } else { |
| picture_structure = PICT_FRAME; |
| mb_aff_frame = h->sps.mb_aff; |
| } |
| } |
| if (h0->current_slice) { |
| if (last_pic_structure != picture_structure || |
| last_pic_droppable != droppable || |
| last_mb_aff_frame != mb_aff_frame) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "Changing field mode (%d -> %d) between slices is not allowed\n", |
| last_pic_structure, h->picture_structure); |
| return AVERROR_INVALIDDATA; |
| } else if (!h0->cur_pic_ptr) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "unset cur_pic_ptr on slice %d\n", |
| h0->current_slice + 1); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| h->picture_structure = picture_structure; |
| h->droppable = droppable; |
| h->frame_num = frame_num; |
| h->mb_aff_frame = mb_aff_frame; |
| h->mb_field_decoding_flag = picture_structure != PICT_FRAME; |
| |
| if (h0->current_slice == 0) { |
| /* Shorten frame num gaps so we don't have to allocate reference |
| * frames just to throw them away */ |
| if (h->frame_num != h->prev_frame_num) { |
| int unwrap_prev_frame_num = h->prev_frame_num; |
| int max_frame_num = 1 << h->sps.log2_max_frame_num; |
| |
| if (unwrap_prev_frame_num > h->frame_num) |
| unwrap_prev_frame_num -= max_frame_num; |
| |
| if ((h->frame_num - unwrap_prev_frame_num) > h->sps.ref_frame_count) { |
| unwrap_prev_frame_num = (h->frame_num - h->sps.ref_frame_count) - 1; |
| if (unwrap_prev_frame_num < 0) |
| unwrap_prev_frame_num += max_frame_num; |
| |
| h->prev_frame_num = unwrap_prev_frame_num; |
| } |
| } |
| |
| /* See if we have a decoded first field looking for a pair... |
| * Here, we're using that to see if we should mark previously |
| * decode frames as "finished". |
| * We have to do that before the "dummy" in-between frame allocation, |
| * since that can modify h->cur_pic_ptr. */ |
| if (h0->first_field) { |
| assert(h0->cur_pic_ptr); |
| assert(h0->cur_pic_ptr->f.buf[0]); |
| assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF); |
| |
| /* Mark old field/frame as completed */ |
| if (h0->cur_pic_ptr->tf.owner == h0->avctx) { |
| ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| last_pic_structure == PICT_BOTTOM_FIELD); |
| } |
| |
| /* figure out if we have a complementary field pair */ |
| if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) { |
| /* Previous field is unmatched. Don't display it, but let it |
| * remain for reference if marked as such. */ |
| if (last_pic_structure != PICT_FRAME) { |
| ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| last_pic_structure == PICT_TOP_FIELD); |
| } |
| } else { |
| if (h0->cur_pic_ptr->frame_num != h->frame_num) { |
| /* This and previous field were reference, but had |
| * different frame_nums. Consider this field first in |
| * pair. Throw away previous field except for reference |
| * purposes. */ |
| if (last_pic_structure != PICT_FRAME) { |
| ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| last_pic_structure == PICT_TOP_FIELD); |
| } |
| } else { |
| /* Second field in complementary pair */ |
| if (!((last_pic_structure == PICT_TOP_FIELD && |
| h->picture_structure == PICT_BOTTOM_FIELD) || |
| (last_pic_structure == PICT_BOTTOM_FIELD && |
| h->picture_structure == PICT_TOP_FIELD))) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "Invalid field mode combination %d/%d\n", |
| last_pic_structure, h->picture_structure); |
| h->picture_structure = last_pic_structure; |
| h->droppable = last_pic_droppable; |
| return AVERROR_INVALIDDATA; |
| } else if (last_pic_droppable != h->droppable) { |
| avpriv_request_sample(h->avctx, |
| "Found reference and non-reference fields in the same frame, which"); |
| h->picture_structure = last_pic_structure; |
| h->droppable = last_pic_droppable; |
| return AVERROR_PATCHWELCOME; |
| } |
| } |
| } |
| } |
| |
| while (h->frame_num != h->prev_frame_num && !h0->first_field && |
| h->frame_num != (h->prev_frame_num + 1) % (1 << h->sps.log2_max_frame_num)) { |
| H264Picture *prev = h->short_ref_count ? h->short_ref[0] : NULL; |
| av_log(h->avctx, AV_LOG_DEBUG, "Frame num gap %d %d\n", |
| h->frame_num, h->prev_frame_num); |
| if (!h->sps.gaps_in_frame_num_allowed_flag) |
| for(i=0; i<FF_ARRAY_ELEMS(h->last_pocs); i++) |
| h->last_pocs[i] = INT_MIN; |
| ret = h264_frame_start(h); |
| if (ret < 0) { |
| h0->first_field = 0; |
| return ret; |
| } |
| |
| h->prev_frame_num++; |
| h->prev_frame_num %= 1 << h->sps.log2_max_frame_num; |
| h->cur_pic_ptr->frame_num = h->prev_frame_num; |
| h->cur_pic_ptr->invalid_gap = !h->sps.gaps_in_frame_num_allowed_flag; |
| ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0); |
| ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1); |
| ret = ff_generate_sliding_window_mmcos(h, 1); |
| if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| return ret; |
| ret = ff_h264_execute_ref_pic_marking(h, h->mmco, h->mmco_index); |
| if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| return ret; |
| /* Error concealment: If a ref is missing, copy the previous ref |
| * in its place. |
| * FIXME: Avoiding a memcpy would be nice, but ref handling makes |
| * many assumptions about there being no actual duplicates. |
| * FIXME: This does not copy padding for out-of-frame motion |
| * vectors. Given we are concealing a lost frame, this probably |
| * is not noticeable by comparison, but it should be fixed. */ |
| if (h->short_ref_count) { |
| if (prev) { |
| av_image_copy(h->short_ref[0]->f.data, |
| h->short_ref[0]->f.linesize, |
| (const uint8_t **)prev->f.data, |
| prev->f.linesize, |
| h->avctx->pix_fmt, |
| h->mb_width * 16, |
| h->mb_height * 16); |
| h->short_ref[0]->poc = prev->poc + 2; |
| } |
| h->short_ref[0]->frame_num = h->prev_frame_num; |
| } |
| } |
| |
| /* See if we have a decoded first field looking for a pair... |
| * We're using that to see whether to continue decoding in that |
| * frame, or to allocate a new one. */ |
| if (h0->first_field) { |
| assert(h0->cur_pic_ptr); |
| assert(h0->cur_pic_ptr->f.buf[0]); |
| assert(h0->cur_pic_ptr->reference != DELAYED_PIC_REF); |
| |
| /* figure out if we have a complementary field pair */ |
| if (!FIELD_PICTURE(h) || h->picture_structure == last_pic_structure) { |
| /* Previous field is unmatched. Don't display it, but let it |
| * remain for reference if marked as such. */ |
| h0->cur_pic_ptr = NULL; |
| h0->first_field = FIELD_PICTURE(h); |
| } else { |
| if (h0->cur_pic_ptr->frame_num != h->frame_num) { |
| ff_thread_report_progress(&h0->cur_pic_ptr->tf, INT_MAX, |
| h0->picture_structure==PICT_BOTTOM_FIELD); |
| /* This and the previous field had different frame_nums. |
| * Consider this field first in pair. Throw away previous |
| * one except for reference purposes. */ |
| h0->first_field = 1; |
| h0->cur_pic_ptr = NULL; |
| } else { |
| /* Second field in complementary pair */ |
| h0->first_field = 0; |
| } |
| } |
| } else { |
| /* Frame or first field in a potentially complementary pair */ |
| h0->first_field = FIELD_PICTURE(h); |
| } |
| |
| if (!FIELD_PICTURE(h) || h0->first_field) { |
| if (h264_frame_start(h) < 0) { |
| h0->first_field = 0; |
| return AVERROR_INVALIDDATA; |
| } |
| } else { |
| release_unused_pictures(h, 0); |
| } |
| /* Some macroblocks can be accessed before they're available in case |
| * of lost slices, MBAFF or threading. */ |
| if (FIELD_PICTURE(h)) { |
| for(i = (h->picture_structure == PICT_BOTTOM_FIELD); i<h->mb_height; i++) |
| memset(h->slice_table + i*h->mb_stride, -1, (h->mb_stride - (i+1==h->mb_height)) * sizeof(*h->slice_table)); |
| } else { |
| memset(h->slice_table, -1, |
| (h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table)); |
| } |
| h0->last_slice_type = -1; |
| } |
| if (h != h0 && (ret = clone_slice(h, h0)) < 0) |
| return ret; |
| |
| /* can't be in alloc_tables because linesize isn't known there. |
| * FIXME: redo bipred weight to not require extra buffer? */ |
| for (i = 0; i < h->slice_context_count; i++) |
| if (h->thread_context[i]) { |
| ret = alloc_scratch_buffers(h->thread_context[i], h->linesize); |
| if (ret < 0) |
| return ret; |
| } |
| |
| h->cur_pic_ptr->frame_num = h->frame_num; // FIXME frame_num cleanup |
| |
| av_assert1(h->mb_num == h->mb_width * h->mb_height); |
| if (first_mb_in_slice << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num || |
| first_mb_in_slice >= h->mb_num) { |
| av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n"); |
| return AVERROR_INVALIDDATA; |
| } |
| h->resync_mb_x = h->mb_x = first_mb_in_slice % h->mb_width; |
| h->resync_mb_y = h->mb_y = (first_mb_in_slice / h->mb_width) << |
| FIELD_OR_MBAFF_PICTURE(h); |
| if (h->picture_structure == PICT_BOTTOM_FIELD) |
| h->resync_mb_y = h->mb_y = h->mb_y + 1; |
| av_assert1(h->mb_y < h->mb_height); |
| |
| if (h->picture_structure == PICT_FRAME) { |
| h->curr_pic_num = h->frame_num; |
| h->max_pic_num = 1 << h->sps.log2_max_frame_num; |
| } else { |
| h->curr_pic_num = 2 * h->frame_num + 1; |
| h->max_pic_num = 1 << (h->sps.log2_max_frame_num + 1); |
| } |
| |
| if (h->nal_unit_type == NAL_IDR_SLICE) |
| get_ue_golomb(&h->gb); /* idr_pic_id */ |
| |
| if (h->sps.poc_type == 0) { |
| h->poc_lsb = get_bits(&h->gb, h->sps.log2_max_poc_lsb); |
| |
| if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME) |
| h->delta_poc_bottom = get_se_golomb(&h->gb); |
| } |
| |
| if (h->sps.poc_type == 1 && !h->sps.delta_pic_order_always_zero_flag) { |
| h->delta_poc[0] = get_se_golomb(&h->gb); |
| |
| if (h->pps.pic_order_present == 1 && h->picture_structure == PICT_FRAME) |
| h->delta_poc[1] = get_se_golomb(&h->gb); |
| } |
| |
| ff_init_poc(h, h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc); |
| |
| if (h->pps.redundant_pic_cnt_present) |
| h->redundant_pic_count = get_ue_golomb(&h->gb); |
| |
| ret = ff_set_ref_count(h); |
| if (ret < 0) |
| return ret; |
| |
| if (slice_type != AV_PICTURE_TYPE_I && |
| (h0->current_slice == 0 || |
| slice_type != h0->last_slice_type || |
| memcmp(h0->last_ref_count, h0->ref_count, sizeof(h0->ref_count)))) { |
| |
| ff_h264_fill_default_ref_list(h); |
| } |
| |
| if (h->slice_type_nos != AV_PICTURE_TYPE_I) { |
| ret = ff_h264_decode_ref_pic_list_reordering(h); |
| if (ret < 0) { |
| h->ref_count[1] = h->ref_count[0] = 0; |
| return ret; |
| } |
| } |
| |
| if ((h->pps.weighted_pred && h->slice_type_nos == AV_PICTURE_TYPE_P) || |
| (h->pps.weighted_bipred_idc == 1 && |
| h->slice_type_nos == AV_PICTURE_TYPE_B)) |
| ff_pred_weight_table(h); |
| else if (h->pps.weighted_bipred_idc == 2 && |
| h->slice_type_nos == AV_PICTURE_TYPE_B) { |
| implicit_weight_table(h, -1); |
| } else { |
| h->use_weight = 0; |
| for (i = 0; i < 2; i++) { |
| h->luma_weight_flag[i] = 0; |
| h->chroma_weight_flag[i] = 0; |
| } |
| } |
| |
| // If frame-mt is enabled, only update mmco tables for the first slice |
| // in a field. Subsequent slices can temporarily clobber h->mmco_index |
| // or h->mmco, which will cause ref list mix-ups and decoding errors |
| // further down the line. This may break decoding if the first slice is |
| // corrupt, thus we only do this if frame-mt is enabled. |
| if (h->nal_ref_idc) { |
| ret = ff_h264_decode_ref_pic_marking(h0, &h->gb, |
| !(h->avctx->active_thread_type & FF_THREAD_FRAME) || |
| h0->current_slice == 0); |
| if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (FRAME_MBAFF(h)) { |
| ff_h264_fill_mbaff_ref_list(h); |
| |
| if (h->pps.weighted_bipred_idc == 2 && h->slice_type_nos == AV_PICTURE_TYPE_B) { |
| implicit_weight_table(h, 0); |
| implicit_weight_table(h, 1); |
| } |
| } |
| |
| if (h->slice_type_nos == AV_PICTURE_TYPE_B && !h->direct_spatial_mv_pred) |
| ff_h264_direct_dist_scale_factor(h); |
| ff_h264_direct_ref_list_init(h); |
| |
| if (h->slice_type_nos != AV_PICTURE_TYPE_I && h->pps.cabac) { |
| tmp = get_ue_golomb_31(&h->gb); |
| if (tmp > 2) { |
| av_log(h->avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp); |
| return AVERROR_INVALIDDATA; |
| } |
| h->cabac_init_idc = tmp; |
| } |
| |
| h->last_qscale_diff = 0; |
| tmp = h->pps.init_qp + get_se_golomb(&h->gb); |
| if (tmp > 51 + 6 * (h->sps.bit_depth_luma - 8)) { |
| av_log(h->avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp); |
| return AVERROR_INVALIDDATA; |
| } |
| h->qscale = tmp; |
| h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale); |
| h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale); |
| // FIXME qscale / qp ... stuff |
| if (h->slice_type == AV_PICTURE_TYPE_SP) |
| get_bits1(&h->gb); /* sp_for_switch_flag */ |
| if (h->slice_type == AV_PICTURE_TYPE_SP || |
| h->slice_type == AV_PICTURE_TYPE_SI) |
| get_se_golomb(&h->gb); /* slice_qs_delta */ |
| |
| h->deblocking_filter = 1; |
| h->slice_alpha_c0_offset = 0; |
| h->slice_beta_offset = 0; |
| if (h->pps.deblocking_filter_parameters_present) { |
| tmp = get_ue_golomb_31(&h->gb); |
| if (tmp > 2) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "deblocking_filter_idc %u out of range\n", tmp); |
| return AVERROR_INVALIDDATA; |
| } |
| h->deblocking_filter = tmp; |
| if (h->deblocking_filter < 2) |
| h->deblocking_filter ^= 1; // 1<->0 |
| |
| if (h->deblocking_filter) { |
| h->slice_alpha_c0_offset = get_se_golomb(&h->gb) * 2; |
| h->slice_beta_offset = get_se_golomb(&h->gb) * 2; |
| if (h->slice_alpha_c0_offset > 12 || |
| h->slice_alpha_c0_offset < -12 || |
| h->slice_beta_offset > 12 || |
| h->slice_beta_offset < -12) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "deblocking filter parameters %d %d out of range\n", |
| h->slice_alpha_c0_offset, h->slice_beta_offset); |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| } |
| |
| if (h->avctx->skip_loop_filter >= AVDISCARD_ALL || |
| (h->avctx->skip_loop_filter >= AVDISCARD_NONKEY && |
| h->nal_unit_type != NAL_IDR_SLICE) || |
| (h->avctx->skip_loop_filter >= AVDISCARD_NONINTRA && |
| h->slice_type_nos != AV_PICTURE_TYPE_I) || |
| (h->avctx->skip_loop_filter >= AVDISCARD_BIDIR && |
| h->slice_type_nos == AV_PICTURE_TYPE_B) || |
| (h->avctx->skip_loop_filter >= AVDISCARD_NONREF && |
| h->nal_ref_idc == 0)) |
| h->deblocking_filter = 0; |
| |
| if (h->deblocking_filter == 1 && h0->max_contexts > 1) { |
| if (h->avctx->flags2 & CODEC_FLAG2_FAST) { |
| /* Cheat slightly for speed: |
| * Do not bother to deblock across slices. */ |
| h->deblocking_filter = 2; |
| } else { |
| h0->max_contexts = 1; |
| if (!h0->single_decode_warning) { |
| av_log(h->avctx, AV_LOG_INFO, |
| "Cannot parallelize slice decoding with deblocking filter type 1, decoding such frames in sequential order\n" |
| "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" |
| "Setting the flags2 libavcodec option to +fast (-flags2 +fast) will disable deblocking across slices and enable parallel slice decoding " |
| "but will generate non-standard-compliant output.\n"); |
| h0->single_decode_warning = 1; |
| } |
| if (h != h0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "Deblocking switched inside frame.\n"); |
| return SLICE_SINGLETHREAD; |
| } |
| } |
| } |
| h->qp_thresh = 15 - |
| FFMIN(h->slice_alpha_c0_offset, h->slice_beta_offset) - |
| FFMAX3(0, |
| h->pps.chroma_qp_index_offset[0], |
| h->pps.chroma_qp_index_offset[1]) + |
| 6 * (h->sps.bit_depth_luma - 8); |
| |
| h0->last_slice_type = slice_type; |
| memcpy(h0->last_ref_count, h0->ref_count, sizeof(h0->last_ref_count)); |
| h->slice_num = ++h0->current_slice; |
| |
| if (h->slice_num) |
| h0->slice_row[(h->slice_num-1)&(MAX_SLICES-1)]= h->resync_mb_y; |
| if ( h0->slice_row[h->slice_num&(MAX_SLICES-1)] + 3 >= h->resync_mb_y |
| && h0->slice_row[h->slice_num&(MAX_SLICES-1)] <= h->resync_mb_y |
| && h->slice_num >= MAX_SLICES) { |
| //in case of ASO this check needs to be updated depending on how we decide to assign slice numbers in this case |
| 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); |
| } |
| |
| for (j = 0; j < 2; j++) { |
| int id_list[16]; |
| int *ref2frm = h->ref2frm[h->slice_num & (MAX_SLICES - 1)][j]; |
| for (i = 0; i < 16; i++) { |
| id_list[i] = 60; |
| if (j < h->list_count && i < h->ref_count[j] && |
| h->ref_list[j][i].f.buf[0]) { |
| int k; |
| AVBuffer *buf = h->ref_list[j][i].f.buf[0]->buffer; |
| for (k = 0; k < h->short_ref_count; k++) |
| if (h->short_ref[k]->f.buf[0]->buffer == buf) { |
| id_list[i] = k; |
| break; |
| } |
| for (k = 0; k < h->long_ref_count; k++) |
| if (h->long_ref[k] && h->long_ref[k]->f.buf[0]->buffer == buf) { |
| id_list[i] = h->short_ref_count + k; |
| break; |
| } |
| } |
| } |
| |
| ref2frm[0] = |
| ref2frm[1] = -1; |
| for (i = 0; i < 16; i++) |
| ref2frm[i + 2] = 4 * id_list[i] + (h->ref_list[j][i].reference & 3); |
| ref2frm[18 + 0] = |
| ref2frm[18 + 1] = -1; |
| for (i = 16; i < 48; i++) |
| ref2frm[i + 4] = 4 * id_list[(i - 16) >> 1] + |
| (h->ref_list[j][i].reference & 3); |
| } |
| |
| if (h->ref_count[0]) ff_h264_set_erpic(&h->er.last_pic, &h->ref_list[0][0]); |
| if (h->ref_count[1]) ff_h264_set_erpic(&h->er.next_pic, &h->ref_list[1][0]); |
| |
| h->er.ref_count = h->ref_count[0]; |
| h0->au_pps_id = pps_id; |
| h->sps.new = |
| h0->sps_buffers[h->pps.sps_id]->new = 0; |
| h->current_sps_id = h->pps.sps_id; |
| |
| if (h->avctx->debug & FF_DEBUG_PICT_INFO) { |
| av_log(h->avctx, AV_LOG_DEBUG, |
| "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", |
| h->slice_num, |
| (h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"), |
| first_mb_in_slice, |
| av_get_picture_type_char(h->slice_type), |
| h->slice_type_fixed ? " fix" : "", |
| h->nal_unit_type == NAL_IDR_SLICE ? " IDR" : "", |
| pps_id, h->frame_num, |
| h->cur_pic_ptr->field_poc[0], |
| h->cur_pic_ptr->field_poc[1], |
| h->ref_count[0], h->ref_count[1], |
| h->qscale, |
| h->deblocking_filter, |
| h->slice_alpha_c0_offset, h->slice_beta_offset, |
| h->use_weight, |
| h->use_weight == 1 && h->use_weight_chroma ? "c" : "", |
| h->slice_type == AV_PICTURE_TYPE_B ? (h->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""); |
| } |
| |
| return 0; |
| } |
| |
| int ff_h264_get_slice_type(const H264Context *h) |
| { |
| switch (h->slice_type) { |
| case AV_PICTURE_TYPE_P: |
| return 0; |
| case AV_PICTURE_TYPE_B: |
| return 1; |
| case AV_PICTURE_TYPE_I: |
| return 2; |
| case AV_PICTURE_TYPE_SP: |
| return 3; |
| case AV_PICTURE_TYPE_SI: |
| return 4; |
| default: |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| |
| static av_always_inline void fill_filter_caches_inter(H264Context *h, |
| int mb_type, int top_xy, |
| int left_xy[LEFT_MBS], |
| int top_type, |
| int left_type[LEFT_MBS], |
| int mb_xy, int list) |
| { |
| int b_stride = h->b_stride; |
| int16_t(*mv_dst)[2] = &h->mv_cache[list][scan8[0]]; |
| int8_t *ref_cache = &h->ref_cache[list][scan8[0]]; |
| if (IS_INTER(mb_type) || IS_DIRECT(mb_type)) { |
| if (USES_LIST(top_type, list)) { |
| const int b_xy = h->mb2b_xy[top_xy] + 3 * b_stride; |
| const int b8_xy = 4 * top_xy + 2; |
| int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| AV_COPY128(mv_dst - 1 * 8, h->cur_pic.motion_val[list][b_xy + 0]); |
| ref_cache[0 - 1 * 8] = |
| ref_cache[1 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 0]]; |
| ref_cache[2 - 1 * 8] = |
| ref_cache[3 - 1 * 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 1]]; |
| } else { |
| AV_ZERO128(mv_dst - 1 * 8); |
| AV_WN32A(&ref_cache[0 - 1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| } |
| |
| if (!IS_INTERLACED(mb_type ^ left_type[LTOP])) { |
| if (USES_LIST(left_type[LTOP], list)) { |
| const int b_xy = h->mb2b_xy[left_xy[LTOP]] + 3; |
| const int b8_xy = 4 * left_xy[LTOP] + 1; |
| int (*ref2frm)[64] =(void*)( h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| AV_COPY32(mv_dst - 1 + 0, h->cur_pic.motion_val[list][b_xy + b_stride * 0]); |
| AV_COPY32(mv_dst - 1 + 8, h->cur_pic.motion_val[list][b_xy + b_stride * 1]); |
| AV_COPY32(mv_dst - 1 + 16, h->cur_pic.motion_val[list][b_xy + b_stride * 2]); |
| AV_COPY32(mv_dst - 1 + 24, h->cur_pic.motion_val[list][b_xy + b_stride * 3]); |
| ref_cache[-1 + 0] = |
| ref_cache[-1 + 8] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 0]]; |
| ref_cache[-1 + 16] = |
| ref_cache[-1 + 24] = ref2frm[list][h->cur_pic.ref_index[list][b8_xy + 2 * 1]]; |
| } else { |
| AV_ZERO32(mv_dst - 1 + 0); |
| AV_ZERO32(mv_dst - 1 + 8); |
| AV_ZERO32(mv_dst - 1 + 16); |
| AV_ZERO32(mv_dst - 1 + 24); |
| ref_cache[-1 + 0] = |
| ref_cache[-1 + 8] = |
| ref_cache[-1 + 16] = |
| ref_cache[-1 + 24] = LIST_NOT_USED; |
| } |
| } |
| } |
| |
| if (!USES_LIST(mb_type, list)) { |
| fill_rectangle(mv_dst, 4, 4, 8, pack16to32(0, 0), 4); |
| AV_WN32A(&ref_cache[0 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| AV_WN32A(&ref_cache[1 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| AV_WN32A(&ref_cache[2 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| AV_WN32A(&ref_cache[3 * 8], ((LIST_NOT_USED) & 0xFF) * 0x01010101u); |
| return; |
| } |
| |
| { |
| int8_t *ref = &h->cur_pic.ref_index[list][4 * mb_xy]; |
| int (*ref2frm)[64] = (void*)(h->ref2frm[h->slice_num & (MAX_SLICES - 1)][0] + (MB_MBAFF(h) ? 20 : 2)); |
| uint32_t ref01 = (pack16to32(ref2frm[list][ref[0]], ref2frm[list][ref[1]]) & 0x00FF00FF) * 0x0101; |
| uint32_t ref23 = (pack16to32(ref2frm[list][ref[2]], ref2frm[list][ref[3]]) & 0x00FF00FF) * 0x0101; |
| AV_WN32A(&ref_cache[0 * 8], ref01); |
| AV_WN32A(&ref_cache[1 * 8], ref01); |
| AV_WN32A(&ref_cache[2 * 8], ref23); |
| AV_WN32A(&ref_cache[3 * 8], ref23); |
| } |
| |
| { |
| int16_t(*mv_src)[2] = &h->cur_pic.motion_val[list][4 * h->mb_x + 4 * h->mb_y * b_stride]; |
| AV_COPY128(mv_dst + 8 * 0, mv_src + 0 * b_stride); |
| AV_COPY128(mv_dst + 8 * 1, mv_src + 1 * b_stride); |
| AV_COPY128(mv_dst + 8 * 2, mv_src + 2 * b_stride); |
| AV_COPY128(mv_dst + 8 * 3, mv_src + 3 * b_stride); |
| } |
| } |
| |
| /** |
| * |
| * @return non zero if the loop filter can be skipped |
| */ |
| static int fill_filter_caches(H264Context *h, int mb_type) |
| { |
| const int mb_xy = h->mb_xy; |
| int top_xy, left_xy[LEFT_MBS]; |
| int top_type, left_type[LEFT_MBS]; |
| uint8_t *nnz; |
| uint8_t *nnz_cache; |
| |
| top_xy = mb_xy - (h->mb_stride << MB_FIELD(h)); |
| |
| /* Wow, what a mess, why didn't they simplify the interlacing & intra |
| * stuff, I can't imagine that these complex rules are worth it. */ |
| |
| left_xy[LBOT] = left_xy[LTOP] = mb_xy - 1; |
| if (FRAME_MBAFF(h)) { |
| const int left_mb_field_flag = IS_INTERLACED(h->cur_pic.mb_type[mb_xy - 1]); |
| const int curr_mb_field_flag = IS_INTERLACED(mb_type); |
| if (h->mb_y & 1) { |
| if (left_mb_field_flag != curr_mb_field_flag) |
| left_xy[LTOP] -= h->mb_stride; |
| } else { |
| if (curr_mb_field_flag) |
| top_xy += h->mb_stride & |
| (((h->cur_pic.mb_type[top_xy] >> 7) & 1) - 1); |
| if (left_mb_field_flag != curr_mb_field_flag) |
| left_xy[LBOT] += h->mb_stride; |
| } |
| } |
| |
| h->top_mb_xy = top_xy; |
| h->left_mb_xy[LTOP] = left_xy[LTOP]; |
| h->left_mb_xy[LBOT] = left_xy[LBOT]; |
| { |
| /* For sufficiently low qp, filtering wouldn't do anything. |
| * This is a conservative estimate: could also check beta_offset |
| * and more accurate chroma_qp. */ |
| int qp_thresh = h->qp_thresh; // FIXME strictly we should store qp_thresh for each mb of a slice |
| int qp = h->cur_pic.qscale_table[mb_xy]; |
| if (qp <= qp_thresh && |
| (left_xy[LTOP] < 0 || |
| ((qp + h->cur_pic.qscale_table[left_xy[LTOP]] + 1) >> 1) <= qp_thresh) && |
| (top_xy < 0 || |
| ((qp + h->cur_pic.qscale_table[top_xy] + 1) >> 1) <= qp_thresh)) { |
| if (!FRAME_MBAFF(h)) |
| return 1; |
| if ((left_xy[LTOP] < 0 || |
| ((qp + h->cur_pic.qscale_table[left_xy[LBOT]] + 1) >> 1) <= qp_thresh) && |
| (top_xy < h->mb_stride || |
| ((qp + h->cur_pic.qscale_table[top_xy - h->mb_stride] + 1) >> 1) <= qp_thresh)) |
| return 1; |
| } |
| } |
| |
| top_type = h->cur_pic.mb_type[top_xy]; |
| left_type[LTOP] = h->cur_pic.mb_type[left_xy[LTOP]]; |
| left_type[LBOT] = h->cur_pic.mb_type[left_xy[LBOT]]; |
| if (h->deblocking_filter == 2) { |
| if (h->slice_table[top_xy] != h->slice_num) |
| top_type = 0; |
| if (h->slice_table[left_xy[LBOT]] != h->slice_num) |
| left_type[LTOP] = left_type[LBOT] = 0; |
| } else { |
| if (h->slice_table[top_xy] == 0xFFFF) |
| top_type = 0; |
| if (h->slice_table[left_xy[LBOT]] == 0xFFFF) |
| left_type[LTOP] = left_type[LBOT] = 0; |
| } |
| h->top_type = top_type; |
| h->left_type[LTOP] = left_type[LTOP]; |
| h->left_type[LBOT] = left_type[LBOT]; |
| |
| if (IS_INTRA(mb_type)) |
| return 0; |
| |
| fill_filter_caches_inter(h, mb_type, top_xy, left_xy, |
| top_type, left_type, mb_xy, 0); |
| if (h->list_count == 2) |
| fill_filter_caches_inter(h, mb_type, top_xy, left_xy, |
| top_type, left_type, mb_xy, 1); |
| |
| nnz = h->non_zero_count[mb_xy]; |
| nnz_cache = h->non_zero_count_cache; |
| AV_COPY32(&nnz_cache[4 + 8 * 1], &nnz[0]); |
| AV_COPY32(&nnz_cache[4 + 8 * 2], &nnz[4]); |
| AV_COPY32(&nnz_cache[4 + 8 * 3], &nnz[8]); |
| AV_COPY32(&nnz_cache[4 + 8 * 4], &nnz[12]); |
| h->cbp = h->cbp_table[mb_xy]; |
| |
| if (top_type) { |
| nnz = h->non_zero_count[top_xy]; |
| AV_COPY32(&nnz_cache[4 + 8 * 0], &nnz[3 * 4]); |
| } |
| |
| if (left_type[LTOP]) { |
| nnz = h->non_zero_count[left_xy[LTOP]]; |
| nnz_cache[3 + 8 * 1] = nnz[3 + 0 * 4]; |
| nnz_cache[3 + 8 * 2] = nnz[3 + 1 * 4]; |
| nnz_cache[3 + 8 * 3] = nnz[3 + 2 * 4]; |
| nnz_cache[3 + 8 * 4] = nnz[3 + 3 * 4]; |
| } |
| |
| /* CAVLC 8x8dct requires NNZ values for residual decoding that differ |
| * from what the loop filter needs */ |
| if (!CABAC(h) && h->pps.transform_8x8_mode) { |
| if (IS_8x8DCT(top_type)) { |
| nnz_cache[4 + 8 * 0] = |
| nnz_cache[5 + 8 * 0] = (h->cbp_table[top_xy] & 0x4000) >> 12; |
| nnz_cache[6 + 8 * 0] = |
| nnz_cache[7 + 8 * 0] = (h->cbp_table[top_xy] & 0x8000) >> 12; |
| } |
| if (IS_8x8DCT(left_type[LTOP])) { |
| nnz_cache[3 + 8 * 1] = |
| nnz_cache[3 + 8 * 2] = (h->cbp_table[left_xy[LTOP]] & 0x2000) >> 12; // FIXME check MBAFF |
| } |
| if (IS_8x8DCT(left_type[LBOT])) { |
| nnz_cache[3 + 8 * 3] = |
| nnz_cache[3 + 8 * 4] = (h->cbp_table[left_xy[LBOT]] & 0x8000) >> 12; // FIXME check MBAFF |
| } |
| |
| if (IS_8x8DCT(mb_type)) { |
| nnz_cache[scan8[0]] = |
| nnz_cache[scan8[1]] = |
| nnz_cache[scan8[2]] = |
| nnz_cache[scan8[3]] = (h->cbp & 0x1000) >> 12; |
| |
| nnz_cache[scan8[0 + 4]] = |
| nnz_cache[scan8[1 + 4]] = |
| nnz_cache[scan8[2 + 4]] = |
| nnz_cache[scan8[3 + 4]] = (h->cbp & 0x2000) >> 12; |
| |
| nnz_cache[scan8[0 + 8]] = |
| nnz_cache[scan8[1 + 8]] = |
| nnz_cache[scan8[2 + 8]] = |
| nnz_cache[scan8[3 + 8]] = (h->cbp & 0x4000) >> 12; |
| |
| nnz_cache[scan8[0 + 12]] = |
| nnz_cache[scan8[1 + 12]] = |
| nnz_cache[scan8[2 + 12]] = |
| nnz_cache[scan8[3 + 12]] = (h->cbp & 0x8000) >> 12; |
| } |
| } |
| |
| return 0; |
| } |
| |
| static void loop_filter(H264Context *h, int start_x, int end_x) |
| { |
| uint8_t *dest_y, *dest_cb, *dest_cr; |
| int linesize, uvlinesize, mb_x, mb_y; |
| const int end_mb_y = h->mb_y + FRAME_MBAFF(h); |
| const int old_slice_type = h->slice_type; |
| const int pixel_shift = h->pixel_shift; |
| const int block_h = 16 >> h->chroma_y_shift; |
| |
| if (h->deblocking_filter) { |
| for (mb_x = start_x; mb_x < end_x; mb_x++) |
| for (mb_y = end_mb_y - FRAME_MBAFF(h); mb_y <= end_mb_y; mb_y++) { |
| int mb_xy, mb_type; |
| mb_xy = h->mb_xy = mb_x + mb_y * h->mb_stride; |
| h->slice_num = h->slice_table[mb_xy]; |
| mb_type = h->cur_pic.mb_type[mb_xy]; |
| h->list_count = h->list_counts[mb_xy]; |
| |
| if (FRAME_MBAFF(h)) |
| h->mb_mbaff = |
| h->mb_field_decoding_flag = !!IS_INTERLACED(mb_type); |
| |
| h->mb_x = mb_x; |
| h->mb_y = mb_y; |
| dest_y = h->cur_pic.f.data[0] + |
| ((mb_x << pixel_shift) + mb_y * h->linesize) * 16; |
| dest_cb = h->cur_pic.f.data[1] + |
| (mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
| mb_y * h->uvlinesize * block_h; |
| dest_cr = h->cur_pic.f.data[2] + |
| (mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
| mb_y * h->uvlinesize * block_h; |
| // FIXME simplify above |
| |
| if (MB_FIELD(h)) { |
| linesize = h->mb_linesize = h->linesize * 2; |
| uvlinesize = h->mb_uvlinesize = h->uvlinesize * 2; |
| if (mb_y & 1) { // FIXME move out of this function? |
| dest_y -= h->linesize * 15; |
| dest_cb -= h->uvlinesize * (block_h - 1); |
| dest_cr -= h->uvlinesize * (block_h - 1); |
| } |
| } else { |
| linesize = h->mb_linesize = h->linesize; |
| uvlinesize = h->mb_uvlinesize = h->uvlinesize; |
| } |
| backup_mb_border(h, dest_y, dest_cb, dest_cr, linesize, |
| uvlinesize, 0); |
| if (fill_filter_caches(h, mb_type)) |
| continue; |
| h->chroma_qp[0] = get_chroma_qp(h, 0, h->cur_pic.qscale_table[mb_xy]); |
| h->chroma_qp[1] = get_chroma_qp(h, 1, h->cur_pic.qscale_table[mb_xy]); |
| |
| if (FRAME_MBAFF(h)) { |
| ff_h264_filter_mb(h, mb_x, mb_y, dest_y, dest_cb, dest_cr, |
| linesize, uvlinesize); |
| } else { |
| ff_h264_filter_mb_fast(h, mb_x, mb_y, dest_y, dest_cb, |
| dest_cr, linesize, uvlinesize); |
| } |
| } |
| } |
| h->slice_type = old_slice_type; |
| h->mb_x = end_x; |
| h->mb_y = end_mb_y - FRAME_MBAFF(h); |
| h->chroma_qp[0] = get_chroma_qp(h, 0, h->qscale); |
| h->chroma_qp[1] = get_chroma_qp(h, 1, h->qscale); |
| } |
| |
| static void predict_field_decoding_flag(H264Context *h) |
| { |
| const int mb_xy = h->mb_x + h->mb_y * h->mb_stride; |
| int mb_type = (h->slice_table[mb_xy - 1] == h->slice_num) ? |
| h->cur_pic.mb_type[mb_xy - 1] : |
| (h->slice_table[mb_xy - h->mb_stride] == h->slice_num) ? |
| h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0; |
| h->mb_mbaff = h->mb_field_decoding_flag = IS_INTERLACED(mb_type) ? 1 : 0; |
| } |
| |
| /** |
| * Draw edges and report progress for the last MB row. |
| */ |
| static void decode_finish_row(H264Context *h) |
| { |
| int top = 16 * (h->mb_y >> FIELD_PICTURE(h)); |
| int pic_height = 16 * h->mb_height >> FIELD_PICTURE(h); |
| int height = 16 << FRAME_MBAFF(h); |
| int deblock_border = (16 + 4) << FRAME_MBAFF(h); |
| |
| if (h->deblocking_filter) { |
| if ((top + height) >= pic_height) |
| height += deblock_border; |
| top -= deblock_border; |
| } |
| |
| if (top >= pic_height || (top + height) < 0) |
| return; |
| |
| height = FFMIN(height, pic_height - top); |
| if (top < 0) { |
| height = top + height; |
| top = 0; |
| } |
| |
| ff_h264_draw_horiz_band(h, top, height); |
| |
| if (h->droppable || h->er.error_occurred) |
| return; |
| |
| ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1, |
| h->picture_structure == PICT_BOTTOM_FIELD); |
| } |
| |
| static void er_add_slice(H264Context *h, int startx, int starty, |
| int endx, int endy, int status) |
| { |
| if (CONFIG_ERROR_RESILIENCE) { |
| ERContext *er = &h->er; |
| |
| ff_er_add_slice(er, startx, starty, endx, endy, status); |
| } |
| } |
| |
| static int decode_slice(struct AVCodecContext *avctx, void *arg) |
| { |
| H264Context *h = *(void **)arg; |
| int lf_x_start = h->mb_x; |
| |
| h->mb_skip_run = -1; |
| |
| av_assert0(h->block_offset[15] == (4 * ((scan8[15] - scan8[0]) & 7) << h->pixel_shift) + 4 * h->linesize * ((scan8[15] - scan8[0]) >> 3)); |
| |
| h->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME || |
| avctx->codec_id != AV_CODEC_ID_H264 || |
| (CONFIG_GRAY && (h->flags & CODEC_FLAG_GRAY)); |
| |
| if (!(h->avctx->active_thread_type & FF_THREAD_SLICE) && h->picture_structure == PICT_FRAME && h->er.error_status_table) { |
| const int start_i = av_clip(h->resync_mb_x + h->resync_mb_y * h->mb_width, 0, h->mb_num - 1); |
| if (start_i) { |
| int prev_status = h->er.error_status_table[h->er.mb_index2xy[start_i - 1]]; |
| prev_status &= ~ VP_START; |
| if (prev_status != (ER_MV_END | ER_DC_END | ER_AC_END)) |
| h->er.error_occurred = 1; |
| } |
| } |
| |
| if (h->pps.cabac) { |
| /* realign */ |
| align_get_bits(&h->gb); |
| |
| /* init cabac */ |
| ff_init_cabac_decoder(&h->cabac, |
| h->gb.buffer + get_bits_count(&h->gb) / 8, |
| (get_bits_left(&h->gb) + 7) / 8); |
| |
| ff_h264_init_cabac_states(h); |
| |
| for (;;) { |
| // START_TIMER |
| int ret, eos; |
| |
| if (h->mb_x + h->mb_y * h->mb_width >= h->mb_index_end) { |
| av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps next at %d\n", |
| h->mb_index_end); |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| h->mb_y, ER_MB_ERROR); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ret = ff_h264_decode_mb_cabac(h); |
| // STOP_TIMER("decode_mb_cabac") |
| |
| if (ret >= 0) |
| ff_h264_hl_decode_mb(h); |
| |
| // FIXME optimal? or let mb_decode decode 16x32 ? |
| if (ret >= 0 && FRAME_MBAFF(h)) { |
| h->mb_y++; |
| |
| ret = ff_h264_decode_mb_cabac(h); |
| |
| if (ret >= 0) |
| ff_h264_hl_decode_mb(h); |
| h->mb_y--; |
| } |
| eos = get_cabac_terminate(&h->cabac); |
| |
| if ((h->workaround_bugs & FF_BUG_TRUNCATED) && |
| h->cabac.bytestream > h->cabac.bytestream_end + 2) { |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1, |
| h->mb_y, ER_MB_END); |
| if (h->mb_x >= lf_x_start) |
| loop_filter(h, lf_x_start, h->mb_x + 1); |
| return 0; |
| } |
| if (h->cabac.bytestream > h->cabac.bytestream_end + 2 ) |
| av_log(h->avctx, AV_LOG_DEBUG, "bytestream overread %"PTRDIFF_SPECIFIER"\n", h->cabac.bytestream_end - h->cabac.bytestream); |
| if (ret < 0 || h->cabac.bytestream > h->cabac.bytestream_end + 4) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "error while decoding MB %d %d, bytestream %"PTRDIFF_SPECIFIER"\n", |
| h->mb_x, h->mb_y, |
| h->cabac.bytestream_end - h->cabac.bytestream); |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| h->mb_y, ER_MB_ERROR); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| if (++h->mb_x >= h->mb_width) { |
| loop_filter(h, lf_x_start, h->mb_x); |
| h->mb_x = lf_x_start = 0; |
| decode_finish_row(h); |
| ++h->mb_y; |
| if (FIELD_OR_MBAFF_PICTURE(h)) { |
| ++h->mb_y; |
| if (FRAME_MBAFF(h) && h->mb_y < h->mb_height) |
| predict_field_decoding_flag(h); |
| } |
| } |
| |
| if (eos || h->mb_y >= h->mb_height) { |
| tprintf(h->avctx, "slice end %d %d\n", |
| get_bits_count(&h->gb), h->gb.size_in_bits); |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x - 1, |
| h->mb_y, ER_MB_END); |
| if (h->mb_x > lf_x_start) |
| loop_filter(h, lf_x_start, h->mb_x); |
| return 0; |
| } |
| } |
| } else { |
| for (;;) { |
| int ret; |
| |
| if (h->mb_x + h->mb_y * h->mb_width >= h->mb_index_end) { |
| av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps next at %d\n", |
| h->mb_index_end); |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| h->mb_y, ER_MB_ERROR); |
| return AVERROR_INVALIDDATA; |
| } |
| |
| ret = ff_h264_decode_mb_cavlc(h); |
| |
| if (ret >= 0) |
| ff_h264_hl_decode_mb(h); |
| |
| // FIXME optimal? or let mb_decode decode 16x32 ? |
| if (ret >= 0 && FRAME_MBAFF(h)) { |
| h->mb_y++; |
| ret = ff_h264_decode_mb_cavlc(h); |
| |
| if (ret >= 0) |
| ff_h264_hl_decode_mb(h); |
| h->mb_y--; |
| } |
| |
| if (ret < 0) { |
| av_log(h->avctx, AV_LOG_ERROR, |
| "error while decoding MB %d %d\n", h->mb_x, h->mb_y); |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| h->mb_y, ER_MB_ERROR); |
| return ret; |
| } |
| |
| if (++h->mb_x >= h->mb_width) { |
| loop_filter(h, lf_x_start, h->mb_x); |
| h->mb_x = lf_x_start = 0; |
| decode_finish_row(h); |
| ++h->mb_y; |
| if (FIELD_OR_MBAFF_PICTURE(h)) { |
| ++h->mb_y; |
| if (FRAME_MBAFF(h) && h->mb_y < h->mb_height) |
| predict_field_decoding_flag(h); |
| } |
| if (h->mb_y >= h->mb_height) { |
| tprintf(h->avctx, "slice end %d %d\n", |
| get_bits_count(&h->gb), h->gb.size_in_bits); |
| |
| if ( get_bits_left(&h->gb) == 0 |
| || get_bits_left(&h->gb) > 0 && !(h->avctx->err_recognition & AV_EF_AGGRESSIVE)) { |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| h->mb_x - 1, h->mb_y, ER_MB_END); |
| |
| return 0; |
| } else { |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| h->mb_x, h->mb_y, ER_MB_END); |
| |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| } |
| |
| if (get_bits_left(&h->gb) <= 0 && h->mb_skip_run <= 0) { |
| tprintf(h->avctx, "slice end %d %d\n", |
| get_bits_count(&h->gb), h->gb.size_in_bits); |
| |
| if (get_bits_left(&h->gb) == 0) { |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, |
| h->mb_x - 1, h->mb_y, ER_MB_END); |
| if (h->mb_x > lf_x_start) |
| loop_filter(h, lf_x_start, h->mb_x); |
| |
| return 0; |
| } else { |
| er_add_slice(h, h->resync_mb_x, h->resync_mb_y, h->mb_x, |
| h->mb_y, ER_MB_ERROR); |
| |
| return AVERROR_INVALIDDATA; |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Call decode_slice() for each context. |
| * |
| * @param h h264 master context |
| * @param context_count number of contexts to execute |
| */ |
| int ff_h264_execute_decode_slices(H264Context *h, unsigned context_count) |
| { |
| AVCodecContext *const avctx = h->avctx; |
| H264Context *hx; |
| int i; |
| |
| av_assert0(h->mb_y < h->mb_height); |
| |
| h->mb_index_end = INT_MAX; |
| |
| if (h->avctx->hwaccel || |
| h->avctx->codec->capabilities & CODEC_CAP_HWACCEL_VDPAU) |
| return 0; |
| if (context_count == 1) { |
| return decode_slice(avctx, &h); |
| } else { |
| int j, mb_index; |
| av_assert0(context_count > 0); |
| for (i = 0; i < context_count; i++) { |
| int mb_index_end = h->mb_width * h->mb_height; |
| hx = h->thread_context[i]; |
| mb_index = hx->resync_mb_x + hx->resync_mb_y * h->mb_width; |
| if (CONFIG_ERROR_RESILIENCE && i) { |
| hx->er.error_count = 0; |
| } |
| hx->x264_build = h->x264_build; |
| for (j = 0; j < context_count; j++) { |
| H264Context *sl2 = h->thread_context[j]; |
| int mb_index2 = sl2->resync_mb_x + sl2->resync_mb_y * h->mb_width; |
| |
| if (i==j || mb_index > mb_index2) |
| continue; |
| mb_index_end = FFMIN(mb_index_end, mb_index2); |
| } |
| hx->mb_index_end = mb_index_end; |
| } |
| |
| avctx->execute(avctx, decode_slice, h->thread_context, |
| NULL, context_count, sizeof(void *)); |
| |
| /* pull back stuff from slices to master context */ |
| hx = h->thread_context[context_count - 1]; |
| h->mb_x = hx->mb_x; |
| h->mb_y = hx->mb_y; |
| h->droppable = hx->droppable; |
| h->picture_structure = hx->picture_structure; |
| if (CONFIG_ERROR_RESILIENCE) { |
| for (i = 1; i < context_count; i++) |
| h->er.error_count += h->thread_context[i]->er.error_count; |
| } |
| } |
| |
| return 0; |
| } |