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2569 lines
93 KiB
2569 lines
93 KiB
/* |
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* H.26L/H.264/AVC/JVT/14496-10/... decoder |
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file |
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* H.264 / AVC / MPEG-4 part10 codec. |
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* @author Michael Niedermayer <michaelni@gmx.at> |
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*/ |
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|
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#include "libavutil/avassert.h" |
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#include "libavutil/display.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/stereo3d.h" |
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#include "libavutil/timer.h" |
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#include "internal.h" |
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#include "cabac.h" |
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#include "cabac_functions.h" |
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#include "error_resilience.h" |
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#include "golomb_legacy.h" |
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#include "avcodec.h" |
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#include "h264.h" |
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#include "h264dec.h" |
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#include "h264data.h" |
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#include "h264chroma.h" |
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#include "h264_mvpred.h" |
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#include "h264_ps.h" |
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#include "mathops.h" |
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#include "mpegutils.h" |
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#include "rectangle.h" |
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#include "thread.h" |
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|
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static const uint8_t field_scan[16] = { |
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0 + 0 * 4, 0 + 1 * 4, 1 + 0 * 4, 0 + 2 * 4, |
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0 + 3 * 4, 1 + 1 * 4, 1 + 2 * 4, 1 + 3 * 4, |
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2 + 0 * 4, 2 + 1 * 4, 2 + 2 * 4, 2 + 3 * 4, |
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3 + 0 * 4, 3 + 1 * 4, 3 + 2 * 4, 3 + 3 * 4, |
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}; |
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|
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static const uint8_t field_scan8x8[64] = { |
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0 + 0 * 8, 0 + 1 * 8, 0 + 2 * 8, 1 + 0 * 8, |
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1 + 1 * 8, 0 + 3 * 8, 0 + 4 * 8, 1 + 2 * 8, |
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2 + 0 * 8, 1 + 3 * 8, 0 + 5 * 8, 0 + 6 * 8, |
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0 + 7 * 8, 1 + 4 * 8, 2 + 1 * 8, 3 + 0 * 8, |
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2 + 2 * 8, 1 + 5 * 8, 1 + 6 * 8, 1 + 7 * 8, |
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2 + 3 * 8, 3 + 1 * 8, 4 + 0 * 8, 3 + 2 * 8, |
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2 + 4 * 8, 2 + 5 * 8, 2 + 6 * 8, 2 + 7 * 8, |
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3 + 3 * 8, 4 + 1 * 8, 5 + 0 * 8, 4 + 2 * 8, |
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3 + 4 * 8, 3 + 5 * 8, 3 + 6 * 8, 3 + 7 * 8, |
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4 + 3 * 8, 5 + 1 * 8, 6 + 0 * 8, 5 + 2 * 8, |
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4 + 4 * 8, 4 + 5 * 8, 4 + 6 * 8, 4 + 7 * 8, |
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5 + 3 * 8, 6 + 1 * 8, 6 + 2 * 8, 5 + 4 * 8, |
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5 + 5 * 8, 5 + 6 * 8, 5 + 7 * 8, 6 + 3 * 8, |
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7 + 0 * 8, 7 + 1 * 8, 6 + 4 * 8, 6 + 5 * 8, |
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6 + 6 * 8, 6 + 7 * 8, 7 + 2 * 8, 7 + 3 * 8, |
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7 + 4 * 8, 7 + 5 * 8, 7 + 6 * 8, 7 + 7 * 8, |
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}; |
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|
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static const uint8_t field_scan8x8_cavlc[64] = { |
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0 + 0 * 8, 1 + 1 * 8, 2 + 0 * 8, 0 + 7 * 8, |
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2 + 2 * 8, 2 + 3 * 8, 2 + 4 * 8, 3 + 3 * 8, |
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3 + 4 * 8, 4 + 3 * 8, 4 + 4 * 8, 5 + 3 * 8, |
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5 + 5 * 8, 7 + 0 * 8, 6 + 6 * 8, 7 + 4 * 8, |
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0 + 1 * 8, 0 + 3 * 8, 1 + 3 * 8, 1 + 4 * 8, |
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1 + 5 * 8, 3 + 1 * 8, 2 + 5 * 8, 4 + 1 * 8, |
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3 + 5 * 8, 5 + 1 * 8, 4 + 5 * 8, 6 + 1 * 8, |
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5 + 6 * 8, 7 + 1 * 8, 6 + 7 * 8, 7 + 5 * 8, |
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0 + 2 * 8, 0 + 4 * 8, 0 + 5 * 8, 2 + 1 * 8, |
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1 + 6 * 8, 4 + 0 * 8, 2 + 6 * 8, 5 + 0 * 8, |
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3 + 6 * 8, 6 + 0 * 8, 4 + 6 * 8, 6 + 2 * 8, |
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5 + 7 * 8, 6 + 4 * 8, 7 + 2 * 8, 7 + 6 * 8, |
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1 + 0 * 8, 1 + 2 * 8, 0 + 6 * 8, 3 + 0 * 8, |
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1 + 7 * 8, 3 + 2 * 8, 2 + 7 * 8, 4 + 2 * 8, |
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3 + 7 * 8, 5 + 2 * 8, 4 + 7 * 8, 5 + 4 * 8, |
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6 + 3 * 8, 6 + 5 * 8, 7 + 3 * 8, 7 + 7 * 8, |
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}; |
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|
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// zigzag_scan8x8_cavlc[i] = zigzag_scan8x8[(i/4) + 16*(i%4)] |
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static const uint8_t zigzag_scan8x8_cavlc[64] = { |
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0 + 0 * 8, 1 + 1 * 8, 1 + 2 * 8, 2 + 2 * 8, |
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4 + 1 * 8, 0 + 5 * 8, 3 + 3 * 8, 7 + 0 * 8, |
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3 + 4 * 8, 1 + 7 * 8, 5 + 3 * 8, 6 + 3 * 8, |
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2 + 7 * 8, 6 + 4 * 8, 5 + 6 * 8, 7 + 5 * 8, |
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1 + 0 * 8, 2 + 0 * 8, 0 + 3 * 8, 3 + 1 * 8, |
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3 + 2 * 8, 0 + 6 * 8, 4 + 2 * 8, 6 + 1 * 8, |
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2 + 5 * 8, 2 + 6 * 8, 6 + 2 * 8, 5 + 4 * 8, |
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3 + 7 * 8, 7 + 3 * 8, 4 + 7 * 8, 7 + 6 * 8, |
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0 + 1 * 8, 3 + 0 * 8, 0 + 4 * 8, 4 + 0 * 8, |
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2 + 3 * 8, 1 + 5 * 8, 5 + 1 * 8, 5 + 2 * 8, |
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1 + 6 * 8, 3 + 5 * 8, 7 + 1 * 8, 4 + 5 * 8, |
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4 + 6 * 8, 7 + 4 * 8, 5 + 7 * 8, 6 + 7 * 8, |
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0 + 2 * 8, 2 + 1 * 8, 1 + 3 * 8, 5 + 0 * 8, |
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1 + 4 * 8, 2 + 4 * 8, 6 + 0 * 8, 4 + 3 * 8, |
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0 + 7 * 8, 4 + 4 * 8, 7 + 2 * 8, 3 + 6 * 8, |
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5 + 5 * 8, 6 + 5 * 8, 6 + 6 * 8, 7 + 7 * 8, |
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}; |
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static void release_unused_pictures(H264Context *h, int remove_current) |
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{ |
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int i; |
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|
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/* release non reference frames */ |
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for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
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if (h->DPB[i].f->buf[0] && !h->DPB[i].reference && |
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(remove_current || &h->DPB[i] != h->cur_pic_ptr)) { |
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ff_h264_unref_picture(h, &h->DPB[i]); |
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} |
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} |
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} |
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static int alloc_scratch_buffers(H264SliceContext *sl, int linesize) |
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{ |
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const H264Context *h = sl->h264; |
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int alloc_size = FFALIGN(FFABS(linesize) + 32, 32); |
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|
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av_fast_malloc(&sl->bipred_scratchpad, &sl->bipred_scratchpad_allocated, 16 * 6 * alloc_size); |
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// edge emu needs blocksize + filter length - 1 |
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// (= 21x21 for H.264) |
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av_fast_malloc(&sl->edge_emu_buffer, &sl->edge_emu_buffer_allocated, alloc_size * 2 * 21); |
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av_fast_malloc(&sl->top_borders[0], &sl->top_borders_allocated[0], |
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h->mb_width * 16 * 3 * sizeof(uint8_t) * 2); |
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av_fast_malloc(&sl->top_borders[1], &sl->top_borders_allocated[1], |
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h->mb_width * 16 * 3 * sizeof(uint8_t) * 2); |
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if (!sl->bipred_scratchpad || !sl->edge_emu_buffer || |
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!sl->top_borders[0] || !sl->top_borders[1]) { |
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av_freep(&sl->bipred_scratchpad); |
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av_freep(&sl->edge_emu_buffer); |
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av_freep(&sl->top_borders[0]); |
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av_freep(&sl->top_borders[1]); |
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sl->bipred_scratchpad_allocated = 0; |
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sl->edge_emu_buffer_allocated = 0; |
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sl->top_borders_allocated[0] = 0; |
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sl->top_borders_allocated[1] = 0; |
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return AVERROR(ENOMEM); |
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} |
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return 0; |
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} |
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static int init_table_pools(H264Context *h) |
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{ |
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const int big_mb_num = h->mb_stride * (h->mb_height + 1) + 1; |
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const int mb_array_size = h->mb_stride * h->mb_height; |
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const int b4_stride = h->mb_width * 4 + 1; |
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const int b4_array_size = b4_stride * h->mb_height * 4; |
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h->qscale_table_pool = av_buffer_pool_init(big_mb_num + h->mb_stride, |
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av_buffer_allocz); |
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h->mb_type_pool = av_buffer_pool_init((big_mb_num + h->mb_stride) * |
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sizeof(uint32_t), av_buffer_allocz); |
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h->motion_val_pool = av_buffer_pool_init(2 * (b4_array_size + 4) * |
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sizeof(int16_t), av_buffer_allocz); |
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h->ref_index_pool = av_buffer_pool_init(4 * mb_array_size, av_buffer_allocz); |
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if (!h->qscale_table_pool || !h->mb_type_pool || !h->motion_val_pool || |
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!h->ref_index_pool) { |
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av_buffer_pool_uninit(&h->qscale_table_pool); |
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av_buffer_pool_uninit(&h->mb_type_pool); |
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av_buffer_pool_uninit(&h->motion_val_pool); |
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av_buffer_pool_uninit(&h->ref_index_pool); |
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return AVERROR(ENOMEM); |
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} |
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return 0; |
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} |
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static int alloc_picture(H264Context *h, H264Picture *pic) |
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{ |
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int i, ret = 0; |
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av_assert0(!pic->f->data[0]); |
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pic->tf.f = pic->f; |
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ret = ff_thread_get_buffer(h->avctx, &pic->tf, pic->reference ? |
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AV_GET_BUFFER_FLAG_REF : 0); |
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if (ret < 0) |
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goto fail; |
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if (h->avctx->hwaccel) { |
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const AVHWAccel *hwaccel = h->avctx->hwaccel; |
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av_assert0(!pic->hwaccel_picture_private); |
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if (hwaccel->frame_priv_data_size) { |
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pic->hwaccel_priv_buf = av_buffer_allocz(hwaccel->frame_priv_data_size); |
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if (!pic->hwaccel_priv_buf) |
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return AVERROR(ENOMEM); |
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pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data; |
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} |
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} |
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if (!h->qscale_table_pool) { |
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ret = init_table_pools(h); |
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if (ret < 0) |
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goto fail; |
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} |
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pic->qscale_table_buf = av_buffer_pool_get(h->qscale_table_pool); |
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pic->mb_type_buf = av_buffer_pool_get(h->mb_type_pool); |
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if (!pic->qscale_table_buf || !pic->mb_type_buf) |
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goto fail; |
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pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * h->mb_stride + 1; |
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pic->qscale_table = pic->qscale_table_buf->data + 2 * h->mb_stride + 1; |
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for (i = 0; i < 2; i++) { |
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pic->motion_val_buf[i] = av_buffer_pool_get(h->motion_val_pool); |
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pic->ref_index_buf[i] = av_buffer_pool_get(h->ref_index_pool); |
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if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) |
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goto fail; |
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pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4; |
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pic->ref_index[i] = pic->ref_index_buf[i]->data; |
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} |
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return 0; |
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fail: |
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ff_h264_unref_picture(h, pic); |
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return (ret < 0) ? ret : AVERROR(ENOMEM); |
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} |
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static inline int pic_is_unused(H264Context *h, H264Picture *pic) |
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{ |
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if (!pic->f->buf[0]) |
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return 1; |
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return 0; |
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} |
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static int find_unused_picture(H264Context *h) |
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{ |
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int i; |
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for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
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if (pic_is_unused(h, &h->DPB[i])) |
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break; |
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} |
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if (i == H264_MAX_PICTURE_COUNT) |
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return AVERROR_INVALIDDATA; |
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|
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return i; |
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} |
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static int initialize_cur_frame(H264Context *h) |
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{ |
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H264Picture *cur; |
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int ret; |
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release_unused_pictures(h, 1); |
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ff_h264_unref_picture(h, &h->cur_pic); |
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h->cur_pic_ptr = NULL; |
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ret = find_unused_picture(h); |
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if (ret < 0) { |
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av_log(h->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
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return ret; |
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} |
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cur = &h->DPB[ret]; |
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|
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ret = alloc_picture(h, cur); |
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if (ret < 0) |
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return ret; |
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ret = ff_h264_ref_picture(h, &h->cur_pic, cur); |
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if (ret < 0) |
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return ret; |
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h->cur_pic_ptr = cur; |
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|
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return 0; |
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} |
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#define IN_RANGE(a, b, size) (((a) >= (b)) && ((a) < ((b) + (size)))) |
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|
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#define REBASE_PICTURE(pic, new_ctx, old_ctx) \ |
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((pic && pic >= old_ctx->DPB && \ |
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pic < old_ctx->DPB + H264_MAX_PICTURE_COUNT) ? \ |
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&new_ctx->DPB[pic - old_ctx->DPB] : NULL) |
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|
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static void copy_picture_range(H264Picture **to, H264Picture **from, int count, |
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H264Context *new_base, |
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H264Context *old_base) |
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{ |
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int i; |
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|
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for (i = 0; i < count; i++) { |
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assert((IN_RANGE(from[i], old_base, sizeof(*old_base)) || |
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IN_RANGE(from[i], old_base->DPB, |
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sizeof(H264Picture) * H264_MAX_PICTURE_COUNT) || |
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!from[i])); |
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to[i] = REBASE_PICTURE(from[i], new_base, old_base); |
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} |
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} |
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|
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static int h264_slice_header_init(H264Context *h); |
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|
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int ff_h264_update_thread_context(AVCodecContext *dst, |
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const AVCodecContext *src) |
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{ |
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H264Context *h = dst->priv_data, *h1 = src->priv_data; |
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int inited = h->context_initialized, err = 0; |
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int need_reinit = 0; |
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int i, ret; |
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|
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if (dst == src || !h1->context_initialized) |
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return 0; |
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|
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if (!h1->ps.sps) |
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return AVERROR_INVALIDDATA; |
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|
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if (inited && |
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(h->width != h1->width || |
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h->height != h1->height || |
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h->mb_width != h1->mb_width || |
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h->mb_height != h1->mb_height || |
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!h->ps.sps || |
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h->ps.sps->bit_depth_luma != h1->ps.sps->bit_depth_luma || |
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h->ps.sps->chroma_format_idc != h1->ps.sps->chroma_format_idc || |
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h->ps.sps->colorspace != h1->ps.sps->colorspace)) { |
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need_reinit = 1; |
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} |
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|
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// SPS/PPS |
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for (i = 0; i < FF_ARRAY_ELEMS(h->ps.sps_list); i++) { |
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av_buffer_unref(&h->ps.sps_list[i]); |
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if (h1->ps.sps_list[i]) { |
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h->ps.sps_list[i] = av_buffer_ref(h1->ps.sps_list[i]); |
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if (!h->ps.sps_list[i]) |
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return AVERROR(ENOMEM); |
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} |
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} |
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for (i = 0; i < FF_ARRAY_ELEMS(h->ps.pps_list); i++) { |
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av_buffer_unref(&h->ps.pps_list[i]); |
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if (h1->ps.pps_list[i]) { |
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h->ps.pps_list[i] = av_buffer_ref(h1->ps.pps_list[i]); |
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if (!h->ps.pps_list[i]) |
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return AVERROR(ENOMEM); |
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} |
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} |
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|
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h->ps.sps = h1->ps.sps; |
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|
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if (need_reinit || !inited) { |
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h->width = h1->width; |
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h->height = h1->height; |
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h->mb_height = h1->mb_height; |
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h->mb_width = h1->mb_width; |
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h->mb_num = h1->mb_num; |
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h->mb_stride = h1->mb_stride; |
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h->b_stride = h1->b_stride; |
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|
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if ((err = h264_slice_header_init(h)) < 0) { |
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av_log(h->avctx, AV_LOG_ERROR, "h264_slice_header_init() failed"); |
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return err; |
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} |
|
|
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/* copy block_offset since frame_start may not be called */ |
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memcpy(h->block_offset, h1->block_offset, sizeof(h->block_offset)); |
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} |
|
|
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h->avctx->coded_height = h1->avctx->coded_height; |
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h->avctx->coded_width = h1->avctx->coded_width; |
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h->avctx->width = h1->avctx->width; |
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h->avctx->height = h1->avctx->height; |
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h->width_from_caller = h1->width_from_caller; |
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h->height_from_caller = h1->height_from_caller; |
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h->coded_picture_number = h1->coded_picture_number; |
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h->first_field = h1->first_field; |
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h->picture_structure = h1->picture_structure; |
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h->mb_aff_frame = h1->mb_aff_frame; |
|
h->droppable = h1->droppable; |
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|
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for (i = 0; i < H264_MAX_PICTURE_COUNT; i++) { |
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ff_h264_unref_picture(h, &h->DPB[i]); |
|
if (h1->DPB[i].f->buf[0] && |
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(ret = ff_h264_ref_picture(h, &h->DPB[i], &h1->DPB[i])) < 0) |
|
return ret; |
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} |
|
|
|
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); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
h->enable_er = h1->enable_er; |
|
h->workaround_bugs = h1->workaround_bugs; |
|
h->droppable = h1->droppable; |
|
|
|
// extradata/NAL handling |
|
h->is_avc = h1->is_avc; |
|
h->nal_length_size = h1->nal_length_size; |
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|
|
memcpy(&h->poc, &h1->poc, sizeof(h->poc)); |
|
|
|
memcpy(h->short_ref, h1->short_ref, sizeof(h->short_ref)); |
|
memcpy(h->long_ref, h1->long_ref, sizeof(h->long_ref)); |
|
memcpy(h->delayed_pic, h1->delayed_pic, sizeof(h->delayed_pic)); |
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memcpy(h->last_pocs, h1->last_pocs, sizeof(h->last_pocs)); |
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|
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h->next_outputed_poc = h1->next_outputed_poc; |
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|
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memcpy(h->mmco, h1->mmco, sizeof(h->mmco)); |
|
h->nb_mmco = h1->nb_mmco; |
|
h->mmco_reset = h1->mmco_reset; |
|
h->explicit_ref_marking = h1->explicit_ref_marking; |
|
h->long_ref_count = h1->long_ref_count; |
|
h->short_ref_count = h1->short_ref_count; |
|
|
|
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); |
|
|
|
if (!h->cur_pic_ptr) |
|
return 0; |
|
|
|
if (!h->droppable) { |
|
err = ff_h264_execute_ref_pic_marking(h); |
|
h->poc.prev_poc_msb = h->poc.poc_msb; |
|
h->poc.prev_poc_lsb = h->poc.poc_lsb; |
|
} |
|
h->poc.prev_frame_num_offset = h->poc.frame_num_offset; |
|
h->poc.prev_frame_num = h->poc.frame_num; |
|
|
|
h->recovery_frame = h1->recovery_frame; |
|
h->frame_recovered = h1->frame_recovered; |
|
|
|
return err; |
|
} |
|
|
|
static int h264_frame_start(H264Context *h) |
|
{ |
|
H264Picture *pic; |
|
int i, ret; |
|
const int pixel_shift = h->pixel_shift; |
|
|
|
ret = initialize_cur_frame(h); |
|
if (ret < 0) |
|
return ret; |
|
|
|
pic = h->cur_pic_ptr; |
|
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; |
|
pic->frame_num = h->poc.frame_num; |
|
/* |
|
* 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->f->pict_type = h->slice_ctx[0].slice_type; |
|
|
|
pic->f->crop_left = h->crop_left; |
|
pic->f->crop_right = h->crop_right; |
|
pic->f->crop_top = h->crop_top; |
|
pic->f->crop_bottom = h->crop_bottom; |
|
|
|
if (CONFIG_ERROR_RESILIENCE && h->enable_er) |
|
ff_er_frame_start(&h->slice_ctx[0].er); |
|
|
|
for (i = 0; i < 16; i++) { |
|
h->block_offset[i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 4 * pic->f->linesize[0] * ((scan8[i] - scan8[0]) >> 3); |
|
h->block_offset[48 + i] = (4 * ((scan8[i] - scan8[0]) & 7) << pixel_shift) + 8 * pic->f->linesize[0] * ((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 * pic->f->linesize[1] * ((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 * pic->f->linesize[1] * ((scan8[i] - scan8[0]) >> 3); |
|
} |
|
|
|
/* Some macroblocks can be accessed before they're available in case |
|
* of lost slices, MBAFF or threading. */ |
|
memset(h->slice_table, -1, |
|
(h->mb_height * h->mb_stride - 1) * sizeof(*h->slice_table)); |
|
|
|
/* 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->postpone_filter = 0; |
|
|
|
h->mb_aff_frame = h->ps.sps->mb_aff && (h->picture_structure == PICT_FRAME); |
|
|
|
assert(h->cur_pic_ptr->long_ref == 0); |
|
|
|
return 0; |
|
} |
|
|
|
static av_always_inline void backup_mb_border(const H264Context *h, H264SliceContext *sl, |
|
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 (sl->mb_y & 1) { |
|
if (!MB_MBAFF(sl)) { |
|
top_border = sl->top_borders[0][sl->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 & AV_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(sl)) { |
|
top_idx = 0; |
|
} else |
|
return; |
|
} |
|
|
|
top_border = sl->top_borders[top_idx][sl->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 & AV_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(const H264Context *h, H264SliceContext *sl, int field) |
|
{ |
|
int ref0, ref1, i, cur_poc, ref_start, ref_count0, ref_count1; |
|
|
|
for (i = 0; i < 2; i++) { |
|
sl->pwt.luma_weight_flag[i] = 0; |
|
sl->pwt.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 (sl->ref_count[0] == 1 && sl->ref_count[1] == 1 && !FRAME_MBAFF(h) && |
|
sl->ref_list[0][0].poc + sl->ref_list[1][0].poc == 2 * cur_poc) { |
|
sl->pwt.use_weight = 0; |
|
sl->pwt.use_weight_chroma = 0; |
|
return; |
|
} |
|
ref_start = 0; |
|
ref_count0 = sl->ref_count[0]; |
|
ref_count1 = sl->ref_count[1]; |
|
} else { |
|
cur_poc = h->cur_pic_ptr->field_poc[field]; |
|
ref_start = 16; |
|
ref_count0 = 16 + 2 * sl->ref_count[0]; |
|
ref_count1 = 16 + 2 * sl->ref_count[1]; |
|
} |
|
|
|
sl->pwt.use_weight = 2; |
|
sl->pwt.use_weight_chroma = 2; |
|
sl->pwt.luma_log2_weight_denom = 5; |
|
sl->pwt.chroma_log2_weight_denom = 5; |
|
|
|
for (ref0 = ref_start; ref0 < ref_count0; ref0++) { |
|
int poc0 = sl->ref_list[0][ref0].poc; |
|
for (ref1 = ref_start; ref1 < ref_count1; ref1++) { |
|
int w = 32; |
|
if (!sl->ref_list[0][ref0].parent->long_ref && !sl->ref_list[1][ref1].parent->long_ref) { |
|
int poc1 = sl->ref_list[1][ref1].poc; |
|
int td = av_clip_int8(poc1 - poc0); |
|
if (td) { |
|
int tb = av_clip_int8(cur_poc - poc0); |
|
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) { |
|
sl->pwt.implicit_weight[ref0][ref1][0] = |
|
sl->pwt.implicit_weight[ref0][ref1][1] = w; |
|
} else { |
|
sl->pwt.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(ff_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->ps.sps->transform_bypass) { // FIXME same ugly |
|
h->zigzag_scan_q0 = ff_zigzag_scan; |
|
h->zigzag_scan8x8_q0 = ff_zigzag_direct; |
|
h->zigzag_scan8x8_cavlc_q0 = zigzag_scan8x8_cavlc; |
|
h->field_scan_q0 = field_scan; |
|
h->field_scan8x8_q0 = field_scan8x8; |
|
h->field_scan8x8_cavlc_q0 = field_scan8x8_cavlc; |
|
} else { |
|
h->zigzag_scan_q0 = h->zigzag_scan; |
|
h->zigzag_scan8x8_q0 = h->zigzag_scan8x8; |
|
h->zigzag_scan8x8_cavlc_q0 = h->zigzag_scan8x8_cavlc; |
|
h->field_scan_q0 = h->field_scan; |
|
h->field_scan8x8_q0 = h->field_scan8x8; |
|
h->field_scan8x8_cavlc_q0 = h->field_scan8x8_cavlc; |
|
} |
|
} |
|
|
|
static enum AVPixelFormat get_pixel_format(H264Context *h) |
|
{ |
|
#define HWACCEL_MAX (CONFIG_H264_DXVA2_HWACCEL + \ |
|
CONFIG_H264_D3D11VA_HWACCEL + \ |
|
CONFIG_H264_VAAPI_HWACCEL + \ |
|
(CONFIG_H264_VDA_HWACCEL * 2) + \ |
|
CONFIG_H264_VDPAU_HWACCEL) |
|
enum AVPixelFormat pix_fmts[HWACCEL_MAX + 2], *fmt = pix_fmts; |
|
const enum AVPixelFormat *choices = pix_fmts; |
|
|
|
switch (h->ps.sps->bit_depth_luma) { |
|
case 9: |
|
if (CHROMA444(h)) { |
|
if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
|
*fmt++ = AV_PIX_FMT_GBRP9; |
|
} else |
|
*fmt++ = AV_PIX_FMT_YUV444P9; |
|
} else if (CHROMA422(h)) |
|
*fmt++ = AV_PIX_FMT_YUV422P9; |
|
else |
|
*fmt++ = AV_PIX_FMT_YUV420P9; |
|
break; |
|
case 10: |
|
if (CHROMA444(h)) { |
|
if (h->avctx->colorspace == AVCOL_SPC_RGB) { |
|
*fmt++ = AV_PIX_FMT_GBRP10; |
|
} else |
|
*fmt++ = AV_PIX_FMT_YUV444P10; |
|
} else if (CHROMA422(h)) |
|
*fmt++ = AV_PIX_FMT_YUV422P10; |
|
else |
|
*fmt++ = AV_PIX_FMT_YUV420P10; |
|
break; |
|
case 8: |
|
#if CONFIG_H264_VDPAU_HWACCEL |
|
*fmt++ = AV_PIX_FMT_VDPAU; |
|
#endif |
|
if (CHROMA444(h)) { |
|
if (h->avctx->colorspace == AVCOL_SPC_RGB) |
|
*fmt++ = AV_PIX_FMT_GBRP; |
|
else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
|
*fmt++ = AV_PIX_FMT_YUVJ444P; |
|
else |
|
*fmt++ = AV_PIX_FMT_YUV444P; |
|
} else if (CHROMA422(h)) { |
|
if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
|
*fmt++ = AV_PIX_FMT_YUVJ422P; |
|
else |
|
*fmt++ = AV_PIX_FMT_YUV422P; |
|
} else { |
|
#if CONFIG_H264_DXVA2_HWACCEL |
|
*fmt++ = AV_PIX_FMT_DXVA2_VLD; |
|
#endif |
|
#if CONFIG_H264_D3D11VA_HWACCEL |
|
*fmt++ = AV_PIX_FMT_D3D11VA_VLD; |
|
#endif |
|
#if CONFIG_H264_VAAPI_HWACCEL |
|
*fmt++ = AV_PIX_FMT_VAAPI; |
|
#endif |
|
#if CONFIG_H264_VDA_HWACCEL |
|
*fmt++ = AV_PIX_FMT_VDA_VLD; |
|
*fmt++ = AV_PIX_FMT_VDA; |
|
#endif |
|
if (h->avctx->codec->pix_fmts) |
|
choices = h->avctx->codec->pix_fmts; |
|
else if (h->avctx->color_range == AVCOL_RANGE_JPEG) |
|
*fmt++ = AV_PIX_FMT_YUVJ420P; |
|
else |
|
*fmt++ = AV_PIX_FMT_YUV420P; |
|
} |
|
break; |
|
default: |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"Unsupported bit depth %d\n", h->ps.sps->bit_depth_luma); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
*fmt = AV_PIX_FMT_NONE; |
|
|
|
return ff_get_format(h->avctx, choices); |
|
} |
|
|
|
/* export coded and cropped frame dimensions to AVCodecContext */ |
|
static int init_dimensions(H264Context *h) |
|
{ |
|
SPS *sps = h->ps.sps; |
|
int cr = sps->crop_right; |
|
int cl = sps->crop_left; |
|
int ct = sps->crop_top; |
|
int cb = sps->crop_bottom; |
|
int width = h->width - (cr + cl); |
|
int height = h->height - (ct + cb); |
|
|
|
/* handle container cropping */ |
|
if (h->width_from_caller > 0 && h->height_from_caller > 0 && |
|
!sps->crop_top && !sps->crop_left && |
|
FFALIGN(h->width_from_caller, 16) == FFALIGN(width, 16) && |
|
FFALIGN(h->height_from_caller, 16) == FFALIGN(height, 16)) { |
|
width = h->width_from_caller; |
|
height = h->height_from_caller; |
|
cl = 0; |
|
ct = 0; |
|
cr = h->width - width; |
|
cb = h->height - height; |
|
} else { |
|
h->width_from_caller = 0; |
|
h->height_from_caller = 0; |
|
} |
|
|
|
h->avctx->coded_width = h->width; |
|
h->avctx->coded_height = h->height; |
|
h->avctx->width = width; |
|
h->avctx->height = height; |
|
h->crop_right = cr; |
|
h->crop_left = cl; |
|
h->crop_top = ct; |
|
h->crop_bottom = cb; |
|
|
|
return 0; |
|
} |
|
|
|
static int h264_slice_header_init(H264Context *h) |
|
{ |
|
const SPS *sps = h->ps.sps; |
|
int i, ret; |
|
|
|
ff_set_sar(h->avctx, sps->sar); |
|
av_pix_fmt_get_chroma_sub_sample(h->avctx->pix_fmt, |
|
&h->chroma_x_shift, &h->chroma_y_shift); |
|
|
|
if (sps->timing_info_present_flag) { |
|
int64_t den = sps->time_scale; |
|
if (h->sei.unregistered.x264_build < 44U) |
|
den *= 2; |
|
av_reduce(&h->avctx->framerate.den, &h->avctx->framerate.num, |
|
sps->num_units_in_tick, den, 1 << 30); |
|
} |
|
|
|
ff_h264_free_tables(h); |
|
|
|
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"); |
|
return ret; |
|
} |
|
|
|
if (sps->bit_depth_luma < 8 || sps->bit_depth_luma > 10) { |
|
av_log(h->avctx, AV_LOG_ERROR, "Unsupported bit depth %d\n", |
|
sps->bit_depth_luma); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
h->avctx->bits_per_raw_sample = sps->bit_depth_luma; |
|
h->pixel_shift = sps->bit_depth_luma > 8; |
|
h->chroma_format_idc = sps->chroma_format_idc; |
|
h->bit_depth_luma = sps->bit_depth_luma; |
|
|
|
ff_h264dsp_init(&h->h264dsp, sps->bit_depth_luma, |
|
sps->chroma_format_idc); |
|
ff_h264chroma_init(&h->h264chroma, sps->bit_depth_chroma); |
|
ff_h264qpel_init(&h->h264qpel, sps->bit_depth_luma); |
|
ff_h264_pred_init(&h->hpc, h->avctx->codec_id, sps->bit_depth_luma, |
|
sps->chroma_format_idc); |
|
ff_videodsp_init(&h->vdsp, sps->bit_depth_luma); |
|
|
|
if (!HAVE_THREADS || !(h->avctx->active_thread_type & FF_THREAD_SLICE)) { |
|
ret = ff_h264_slice_context_init(h, &h->slice_ctx[0]); |
|
if (ret < 0) { |
|
av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
|
return ret; |
|
} |
|
} else { |
|
for (i = 0; i < h->nb_slice_ctx; i++) { |
|
H264SliceContext *sl = &h->slice_ctx[i]; |
|
|
|
sl->h264 = h; |
|
sl->intra4x4_pred_mode = h->intra4x4_pred_mode + i * 8 * 2 * h->mb_stride; |
|
sl->mvd_table[0] = h->mvd_table[0] + i * 8 * 2 * h->mb_stride; |
|
sl->mvd_table[1] = h->mvd_table[1] + i * 8 * 2 * h->mb_stride; |
|
|
|
if ((ret = ff_h264_slice_context_init(h, sl)) < 0) { |
|
av_log(h->avctx, AV_LOG_ERROR, "context_init() failed.\n"); |
|
return ret; |
|
} |
|
} |
|
} |
|
|
|
h->context_initialized = 1; |
|
|
|
return 0; |
|
} |
|
|
|
static int h264_init_ps(H264Context *h, const H264SliceContext *sl) |
|
{ |
|
const SPS *sps; |
|
int needs_reinit = 0, ret; |
|
|
|
h->ps.pps = (const PPS*)h->ps.pps_list[sl->pps_id]->data; |
|
if (h->ps.sps != (const SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data) { |
|
h->ps.sps = (SPS*)h->ps.sps_list[h->ps.pps->sps_id]->data; |
|
|
|
if (h->bit_depth_luma != h->ps.sps->bit_depth_luma || |
|
h->chroma_format_idc != h->ps.sps->chroma_format_idc) |
|
needs_reinit = 1; |
|
} |
|
sps = h->ps.sps; |
|
|
|
h->avctx->profile = ff_h264_get_profile(sps); |
|
h->avctx->level = sps->level_idc; |
|
h->avctx->refs = sps->ref_frame_count; |
|
|
|
if (h->mb_width != sps->mb_width || |
|
h->mb_height != sps->mb_height) |
|
needs_reinit = 1; |
|
|
|
h->mb_width = sps->mb_width; |
|
h->mb_height = sps->mb_height; |
|
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 = 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 (sps->video_signal_type_present_flag) { |
|
h->avctx->color_range = sps->full_range ? AVCOL_RANGE_JPEG |
|
: AVCOL_RANGE_MPEG; |
|
if (sps->colour_description_present_flag) { |
|
if (h->avctx->colorspace != sps->colorspace) |
|
needs_reinit = 1; |
|
h->avctx->color_primaries = sps->color_primaries; |
|
h->avctx->color_trc = sps->color_trc; |
|
h->avctx->colorspace = sps->colorspace; |
|
} |
|
} |
|
|
|
if (!h->context_initialized || needs_reinit) { |
|
h->context_initialized = 0; |
|
if (sl != h->slice_ctx) { |
|
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, |
|
h->current_slice + 1); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
ff_h264_flush_change(h); |
|
|
|
if ((ret = get_pixel_format(h)) < 0) |
|
return ret; |
|
h->avctx->pix_fmt = ret; |
|
|
|
av_log(h->avctx, AV_LOG_VERBOSE, "Reinit context to %dx%d, " |
|
"pix_fmt: %d\n", h->width, h->height, h->avctx->pix_fmt); |
|
|
|
if ((ret = h264_slice_header_init(h)) < 0) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"h264_slice_header_init() failed\n"); |
|
return ret; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int h264_export_frame_props(H264Context *h) |
|
{ |
|
const SPS *sps = h->ps.sps; |
|
H264Picture *cur = h->cur_pic_ptr; |
|
|
|
cur->f->interlaced_frame = 0; |
|
cur->f->repeat_pict = 0; |
|
|
|
/* Signal interlacing information externally. */ |
|
/* Prioritize picture timing SEI information over used |
|
* decoding process if it exists. */ |
|
|
|
if (sps->pic_struct_present_flag) { |
|
H264SEIPictureTiming *pt = &h->sei.picture_timing; |
|
switch (pt->pic_struct) { |
|
case SEI_PIC_STRUCT_FRAME: |
|
break; |
|
case SEI_PIC_STRUCT_TOP_FIELD: |
|
case SEI_PIC_STRUCT_BOTTOM_FIELD: |
|
cur->f->interlaced_frame = 1; |
|
break; |
|
case SEI_PIC_STRUCT_TOP_BOTTOM: |
|
case SEI_PIC_STRUCT_BOTTOM_TOP: |
|
if (FIELD_OR_MBAFF_PICTURE(h)) |
|
cur->f->interlaced_frame = 1; |
|
else |
|
// try to flag soft telecine progressive |
|
cur->f->interlaced_frame = h->prev_interlaced_frame; |
|
break; |
|
case SEI_PIC_STRUCT_TOP_BOTTOM_TOP: |
|
case SEI_PIC_STRUCT_BOTTOM_TOP_BOTTOM: |
|
/* Signal the possibility of telecined film externally |
|
* (pic_struct 5,6). From these hints, let the applications |
|
* decide if they apply deinterlacing. */ |
|
cur->f->repeat_pict = 1; |
|
break; |
|
case SEI_PIC_STRUCT_FRAME_DOUBLING: |
|
cur->f->repeat_pict = 2; |
|
break; |
|
case SEI_PIC_STRUCT_FRAME_TRIPLING: |
|
cur->f->repeat_pict = 4; |
|
break; |
|
} |
|
|
|
if ((pt->ct_type & 3) && |
|
pt->pic_struct <= SEI_PIC_STRUCT_BOTTOM_TOP) |
|
cur->f->interlaced_frame = (pt->ct_type & (1 << 1)) != 0; |
|
} else { |
|
/* Derive interlacing flag from used decoding process. */ |
|
cur->f->interlaced_frame = FIELD_OR_MBAFF_PICTURE(h); |
|
} |
|
h->prev_interlaced_frame = cur->f->interlaced_frame; |
|
|
|
if (cur->field_poc[0] != cur->field_poc[1]) { |
|
/* Derive top_field_first from field pocs. */ |
|
cur->f->top_field_first = cur->field_poc[0] < cur->field_poc[1]; |
|
} else { |
|
if (cur->f->interlaced_frame || sps->pic_struct_present_flag) { |
|
/* Use picture timing SEI information. Even if it is a |
|
* information of a past frame, better than nothing. */ |
|
if (h->sei.picture_timing.pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM || |
|
h->sei.picture_timing.pic_struct == SEI_PIC_STRUCT_TOP_BOTTOM_TOP) |
|
cur->f->top_field_first = 1; |
|
else |
|
cur->f->top_field_first = 0; |
|
} else { |
|
/* Most likely progressive */ |
|
cur->f->top_field_first = 0; |
|
} |
|
} |
|
|
|
if (h->sei.frame_packing.present && |
|
h->sei.frame_packing.arrangement_type >= 0 && |
|
h->sei.frame_packing.arrangement_type <= 6 && |
|
h->sei.frame_packing.content_interpretation_type > 0 && |
|
h->sei.frame_packing.content_interpretation_type < 3) { |
|
H264SEIFramePacking *fp = &h->sei.frame_packing; |
|
AVStereo3D *stereo = av_stereo3d_create_side_data(cur->f); |
|
if (!stereo) |
|
return AVERROR(ENOMEM); |
|
|
|
switch (fp->arrangement_type) { |
|
case 0: |
|
stereo->type = AV_STEREO3D_CHECKERBOARD; |
|
break; |
|
case 1: |
|
stereo->type = AV_STEREO3D_COLUMNS; |
|
break; |
|
case 2: |
|
stereo->type = AV_STEREO3D_LINES; |
|
break; |
|
case 3: |
|
if (fp->quincunx_subsampling) |
|
stereo->type = AV_STEREO3D_SIDEBYSIDE_QUINCUNX; |
|
else |
|
stereo->type = AV_STEREO3D_SIDEBYSIDE; |
|
break; |
|
case 4: |
|
stereo->type = AV_STEREO3D_TOPBOTTOM; |
|
break; |
|
case 5: |
|
stereo->type = AV_STEREO3D_FRAMESEQUENCE; |
|
break; |
|
case 6: |
|
stereo->type = AV_STEREO3D_2D; |
|
break; |
|
} |
|
|
|
if (fp->content_interpretation_type == 2) |
|
stereo->flags = AV_STEREO3D_FLAG_INVERT; |
|
} |
|
|
|
if (h->sei.display_orientation.present && |
|
(h->sei.display_orientation.anticlockwise_rotation || |
|
h->sei.display_orientation.hflip || |
|
h->sei.display_orientation.vflip)) { |
|
H264SEIDisplayOrientation *o = &h->sei.display_orientation; |
|
double angle = o->anticlockwise_rotation * 360 / (double) (1 << 16); |
|
AVFrameSideData *rotation = av_frame_new_side_data(cur->f, |
|
AV_FRAME_DATA_DISPLAYMATRIX, |
|
sizeof(int32_t) * 9); |
|
if (!rotation) |
|
return AVERROR(ENOMEM); |
|
|
|
av_display_rotation_set((int32_t *)rotation->data, angle); |
|
av_display_matrix_flip((int32_t *)rotation->data, |
|
o->hflip, o->vflip); |
|
} |
|
|
|
if (h->sei.afd.present) { |
|
AVFrameSideData *sd = av_frame_new_side_data(cur->f, AV_FRAME_DATA_AFD, |
|
sizeof(uint8_t)); |
|
if (!sd) |
|
return AVERROR(ENOMEM); |
|
|
|
*sd->data = h->sei.afd.active_format_description; |
|
h->sei.afd.present = 0; |
|
} |
|
|
|
if (h->sei.a53_caption.a53_caption) { |
|
H264SEIA53Caption *a53 = &h->sei.a53_caption; |
|
AVFrameSideData *sd = av_frame_new_side_data(cur->f, |
|
AV_FRAME_DATA_A53_CC, |
|
a53->a53_caption_size); |
|
if (!sd) |
|
return AVERROR(ENOMEM); |
|
|
|
memcpy(sd->data, a53->a53_caption, a53->a53_caption_size); |
|
av_freep(&a53->a53_caption); |
|
a53->a53_caption_size = 0; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int h264_select_output_frame(H264Context *h) |
|
{ |
|
const SPS *sps = h->ps.sps; |
|
H264Picture *out = h->cur_pic_ptr; |
|
H264Picture *cur = h->cur_pic_ptr; |
|
int i, pics, out_of_order, out_idx; |
|
int invalid = 0, cnt = 0; |
|
int ret; |
|
|
|
if (sps->bitstream_restriction_flag || |
|
h->avctx->strict_std_compliance >= FF_COMPLIANCE_NORMAL) { |
|
h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, sps->num_reorder_frames); |
|
} |
|
|
|
pics = 0; |
|
while (h->delayed_pic[pics]) |
|
pics++; |
|
|
|
assert(pics <= MAX_DELAYED_PIC_COUNT); |
|
|
|
h->delayed_pic[pics++] = cur; |
|
if (cur->reference == 0) |
|
cur->reference = DELAYED_PIC_REF; |
|
|
|
/* Frame reordering. This code takes pictures from coding order and sorts |
|
* them by their incremental POC value into display order. It supports POC |
|
* gaps, MMCO reset codes and random resets. |
|
* A "display group" can start either with a IDR frame (f.key_frame = 1), |
|
* and/or can be closed down with a MMCO reset code. In sequences where |
|
* there is no delay, we can't detect that (since the frame was already |
|
* output to the user), so we also set h->mmco_reset to detect the MMCO |
|
* reset code. |
|
* FIXME: if we detect insufficient delays (as per h->avctx->has_b_frames), |
|
* we increase the delay between input and output. All frames affected by |
|
* the lag (e.g. those that should have been output before another frame |
|
* that we already returned to the user) will be dropped. This is a bug |
|
* that we will fix later. */ |
|
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) { |
|
cnt += out->poc < h->last_pocs[i]; |
|
invalid += out->poc == INT_MIN; |
|
} |
|
if (!h->mmco_reset && !cur->f->key_frame && |
|
cnt + invalid == MAX_DELAYED_PIC_COUNT && cnt > 0) { |
|
h->mmco_reset = 2; |
|
if (pics > 1) |
|
h->delayed_pic[pics - 2]->mmco_reset = 2; |
|
} |
|
if (h->mmco_reset || cur->f->key_frame) { |
|
for (i = 0; i < MAX_DELAYED_PIC_COUNT; i++) |
|
h->last_pocs[i] = INT_MIN; |
|
cnt = 0; |
|
invalid = MAX_DELAYED_PIC_COUNT; |
|
} |
|
out = h->delayed_pic[0]; |
|
out_idx = 0; |
|
for (i = 1; i < MAX_DELAYED_PIC_COUNT && |
|
h->delayed_pic[i] && |
|
!h->delayed_pic[i - 1]->mmco_reset && |
|
!h->delayed_pic[i]->f->key_frame; |
|
i++) |
|
if (h->delayed_pic[i]->poc < out->poc) { |
|
out = h->delayed_pic[i]; |
|
out_idx = i; |
|
} |
|
if (h->avctx->has_b_frames == 0 && |
|
(h->delayed_pic[0]->f->key_frame || h->mmco_reset)) |
|
h->next_outputed_poc = INT_MIN; |
|
out_of_order = !out->f->key_frame && !h->mmco_reset && |
|
(out->poc < h->next_outputed_poc); |
|
|
|
if (sps->bitstream_restriction_flag && |
|
h->avctx->has_b_frames >= sps->num_reorder_frames) { |
|
} else if (out_of_order && pics - 1 == h->avctx->has_b_frames && |
|
h->avctx->has_b_frames < MAX_DELAYED_PIC_COUNT) { |
|
if (invalid + cnt < MAX_DELAYED_PIC_COUNT) { |
|
h->avctx->has_b_frames = FFMAX(h->avctx->has_b_frames, cnt); |
|
} |
|
} else if (!h->avctx->has_b_frames && |
|
((h->next_outputed_poc != INT_MIN && |
|
out->poc > h->next_outputed_poc + 2) || |
|
cur->f->pict_type == AV_PICTURE_TYPE_B)) { |
|
h->avctx->has_b_frames++; |
|
} |
|
|
|
if (pics > h->avctx->has_b_frames) { |
|
out->reference &= ~DELAYED_PIC_REF; |
|
for (i = out_idx; h->delayed_pic[i]; i++) |
|
h->delayed_pic[i] = h->delayed_pic[i + 1]; |
|
} |
|
memmove(h->last_pocs, &h->last_pocs[1], |
|
sizeof(*h->last_pocs) * (MAX_DELAYED_PIC_COUNT - 1)); |
|
h->last_pocs[MAX_DELAYED_PIC_COUNT - 1] = cur->poc; |
|
if (!out_of_order && pics > h->avctx->has_b_frames) { |
|
av_frame_unref(h->output_frame); |
|
ret = av_frame_ref(h->output_frame, out->f); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (out->recovered) { |
|
// We have reached an recovery point and all frames after it in |
|
// display order are "recovered". |
|
h->frame_recovered |= FRAME_RECOVERED_SEI; |
|
} |
|
out->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_SEI); |
|
|
|
if (!out->recovered) { |
|
if (!(h->avctx->flags & AV_CODEC_FLAG_OUTPUT_CORRUPT)) |
|
av_frame_unref(h->output_frame); |
|
else |
|
h->output_frame->flags |= AV_FRAME_FLAG_CORRUPT; |
|
} |
|
|
|
if (out->mmco_reset) { |
|
if (out_idx > 0) { |
|
h->next_outputed_poc = out->poc; |
|
h->delayed_pic[out_idx - 1]->mmco_reset = out->mmco_reset; |
|
} else { |
|
h->next_outputed_poc = INT_MIN; |
|
} |
|
} else { |
|
if (out_idx == 0 && pics > 1 && h->delayed_pic[0]->f->key_frame) { |
|
h->next_outputed_poc = INT_MIN; |
|
} else { |
|
h->next_outputed_poc = out->poc; |
|
} |
|
} |
|
h->mmco_reset = 0; |
|
} else { |
|
av_log(h->avctx, AV_LOG_DEBUG, "no picture\n"); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* This function is called right after decoding the slice header for a first |
|
* slice in a field (or a frame). It decides whether we are decoding a new frame |
|
* or a second field in a pair and does the necessary setup. |
|
*/ |
|
static int h264_field_start(H264Context *h, const H264SliceContext *sl, |
|
const H2645NAL *nal) |
|
{ |
|
const SPS *sps; |
|
|
|
int last_pic_structure, last_pic_droppable, ret; |
|
|
|
ret = h264_init_ps(h, sl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
sps = h->ps.sps; |
|
|
|
last_pic_droppable = h->droppable; |
|
last_pic_structure = h->picture_structure; |
|
h->droppable = (nal->ref_idc == 0); |
|
h->picture_structure = sl->picture_structure; |
|
|
|
h->poc.frame_num = sl->frame_num; |
|
h->poc.poc_lsb = sl->poc_lsb; |
|
h->poc.delta_poc_bottom = sl->delta_poc_bottom; |
|
h->poc.delta_poc[0] = sl->delta_poc[0]; |
|
h->poc.delta_poc[1] = sl->delta_poc[1]; |
|
|
|
/* Shorten frame num gaps so we don't have to allocate reference |
|
* frames just to throw them away */ |
|
if (h->poc.frame_num != h->poc.prev_frame_num) { |
|
int unwrap_prev_frame_num = h->poc.prev_frame_num; |
|
int max_frame_num = 1 << sps->log2_max_frame_num; |
|
|
|
if (unwrap_prev_frame_num > h->poc.frame_num) |
|
unwrap_prev_frame_num -= max_frame_num; |
|
|
|
if ((h->poc.frame_num - unwrap_prev_frame_num) > sps->ref_frame_count) { |
|
unwrap_prev_frame_num = (h->poc.frame_num - sps->ref_frame_count) - 1; |
|
if (unwrap_prev_frame_num < 0) |
|
unwrap_prev_frame_num += max_frame_num; |
|
|
|
h->poc.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 s->current_picture_ptr. */ |
|
if (h->first_field) { |
|
assert(h->cur_pic_ptr); |
|
assert(h->cur_pic_ptr->f->buf[0]); |
|
assert(h->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. */ |
|
if (!last_pic_droppable && last_pic_structure != PICT_FRAME) { |
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, |
|
last_pic_structure == PICT_TOP_FIELD); |
|
} |
|
} else { |
|
if (h->cur_pic_ptr->frame_num != h->poc.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_droppable && last_pic_structure != PICT_FRAME) { |
|
ff_thread_report_progress(&h->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->poc.frame_num != h->poc.prev_frame_num && |
|
h->poc.frame_num != (h->poc.prev_frame_num + 1) % (1 << 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->poc.frame_num, h->poc.prev_frame_num); |
|
ret = initialize_cur_frame(h); |
|
if (ret < 0) { |
|
h->first_field = 0; |
|
return ret; |
|
} |
|
|
|
h->poc.prev_frame_num++; |
|
h->poc.prev_frame_num %= 1 << sps->log2_max_frame_num; |
|
h->cur_pic_ptr->frame_num = h->poc.prev_frame_num; |
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 0); |
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, INT_MAX, 1); |
|
|
|
h->explicit_ref_marking = 0; |
|
ret = ff_h264_execute_ref_pic_marking(h); |
|
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 && |
|
h->short_ref[0]->f->width == prev->f->width && |
|
h->short_ref[0]->f->height == prev->f->height && |
|
h->short_ref[0]->f->format == prev->f->format) { |
|
ff_thread_await_progress(&prev->tf, INT_MAX, 0); |
|
if (prev->field_picture) |
|
ff_thread_await_progress(&prev->tf, INT_MAX, 1); |
|
av_image_copy(h->short_ref[0]->f->data, |
|
h->short_ref[0]->f->linesize, |
|
(const uint8_t **)prev->f->data, |
|
prev->f->linesize, |
|
prev->f->format, |
|
h->mb_width * 16, |
|
h->mb_height * 16); |
|
h->short_ref[0]->poc = prev->poc + 2; |
|
} |
|
h->short_ref[0]->frame_num = h->poc.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 (h->first_field) { |
|
assert(h->cur_pic_ptr); |
|
assert(h->cur_pic_ptr->f->buf[0]); |
|
assert(h->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. */ |
|
h->cur_pic_ptr = NULL; |
|
h->first_field = FIELD_PICTURE(h); |
|
} else { |
|
if (h->cur_pic_ptr->frame_num != h->poc.frame_num) { |
|
/* This and the previous field had different frame_nums. |
|
* Consider this field first in pair. Throw away previous |
|
* one except for reference purposes. */ |
|
h->first_field = 1; |
|
h->cur_pic_ptr = NULL; |
|
} else { |
|
/* Second field in complementary pair */ |
|
h->first_field = 0; |
|
} |
|
} |
|
} else { |
|
/* Frame or first field in a potentially complementary pair */ |
|
h->first_field = FIELD_PICTURE(h); |
|
} |
|
|
|
if (!FIELD_PICTURE(h) || h->first_field) { |
|
if (h264_frame_start(h) < 0) { |
|
h->first_field = 0; |
|
return AVERROR_INVALIDDATA; |
|
} |
|
} else { |
|
release_unused_pictures(h, 0); |
|
} |
|
|
|
ff_h264_init_poc(h->cur_pic_ptr->field_poc, &h->cur_pic_ptr->poc, |
|
h->ps.sps, &h->poc, h->picture_structure, nal->ref_idc); |
|
|
|
memcpy(h->mmco, sl->mmco, sl->nb_mmco * sizeof(*h->mmco)); |
|
h->nb_mmco = sl->nb_mmco; |
|
h->explicit_ref_marking = sl->explicit_ref_marking; |
|
|
|
h->picture_idr = nal->type == H264_NAL_IDR_SLICE; |
|
|
|
if (h->sei.recovery_point.recovery_frame_cnt >= 0 && h->recovery_frame < 0) { |
|
h->recovery_frame = (h->poc.frame_num + h->sei.recovery_point.recovery_frame_cnt) & |
|
((1 << h->ps.sps->log2_max_frame_num) - 1); |
|
} |
|
|
|
h->cur_pic_ptr->f->key_frame |= (nal->type == H264_NAL_IDR_SLICE) || |
|
(h->sei.recovery_point.recovery_frame_cnt >= 0); |
|
|
|
if (nal->type == H264_NAL_IDR_SLICE || h->recovery_frame == h->poc.frame_num) { |
|
h->recovery_frame = -1; |
|
h->cur_pic_ptr->recovered = 1; |
|
} |
|
// If we have an IDR, all frames after it in decoded order are |
|
// "recovered". |
|
if (nal->type == H264_NAL_IDR_SLICE) |
|
h->frame_recovered |= FRAME_RECOVERED_IDR; |
|
h->cur_pic_ptr->recovered |= !!(h->frame_recovered & FRAME_RECOVERED_IDR); |
|
|
|
/* Set the frame properties/side data. Only done for the second field in |
|
* field coded frames, since some SEI information is present for each field |
|
* and is merged by the SEI parsing code. */ |
|
if (!FIELD_PICTURE(h) || !h->first_field) { |
|
ret = h264_export_frame_props(h); |
|
if (ret < 0) |
|
return ret; |
|
|
|
ret = h264_select_output_frame(h); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
if (h->avctx->hwaccel) { |
|
ret = h->avctx->hwaccel->start_frame(h->avctx, NULL, 0); |
|
if (ret < 0) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int h264_slice_header_parse(H264SliceContext *sl, const H2645NAL *nal, |
|
const H264ParamSets *ps, AVCodecContext *avctx) |
|
{ |
|
const SPS *sps; |
|
const PPS *pps; |
|
int ret; |
|
unsigned int slice_type, tmp, i; |
|
int field_pic_flag, bottom_field_flag, picture_structure; |
|
|
|
sl->first_mb_addr = get_ue_golomb(&sl->gb); |
|
|
|
slice_type = get_ue_golomb_31(&sl->gb); |
|
if (slice_type > 9) { |
|
av_log(avctx, AV_LOG_ERROR, |
|
"slice type %d too large at %d\n", |
|
slice_type, sl->first_mb_addr); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
if (slice_type > 4) { |
|
slice_type -= 5; |
|
sl->slice_type_fixed = 1; |
|
} else |
|
sl->slice_type_fixed = 0; |
|
|
|
slice_type = ff_h264_golomb_to_pict_type[slice_type]; |
|
sl->slice_type = slice_type; |
|
sl->slice_type_nos = slice_type & 3; |
|
|
|
if (nal->type == H264_NAL_IDR_SLICE && |
|
sl->slice_type_nos != AV_PICTURE_TYPE_I) { |
|
av_log(avctx, AV_LOG_ERROR, "A non-intra slice in an IDR NAL unit.\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
sl->pps_id = get_ue_golomb(&sl->gb); |
|
if (sl->pps_id >= MAX_PPS_COUNT) { |
|
av_log(avctx, AV_LOG_ERROR, "pps_id %u out of range\n", sl->pps_id); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
if (!ps->pps_list[sl->pps_id]) { |
|
av_log(avctx, AV_LOG_ERROR, |
|
"non-existing PPS %u referenced\n", |
|
sl->pps_id); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
pps = (const PPS*)ps->pps_list[sl->pps_id]->data; |
|
|
|
if (!ps->sps_list[pps->sps_id]) { |
|
av_log(avctx, AV_LOG_ERROR, |
|
"non-existing SPS %u referenced\n", pps->sps_id); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
sps = (const SPS*)ps->sps_list[pps->sps_id]->data; |
|
|
|
sl->frame_num = get_bits(&sl->gb, sps->log2_max_frame_num); |
|
|
|
sl->mb_mbaff = 0; |
|
|
|
if (sps->frame_mbs_only_flag) { |
|
picture_structure = PICT_FRAME; |
|
} else { |
|
field_pic_flag = get_bits1(&sl->gb); |
|
if (field_pic_flag) { |
|
bottom_field_flag = get_bits1(&sl->gb); |
|
picture_structure = PICT_TOP_FIELD + bottom_field_flag; |
|
} else { |
|
picture_structure = PICT_FRAME; |
|
} |
|
} |
|
sl->picture_structure = picture_structure; |
|
sl->mb_field_decoding_flag = picture_structure != PICT_FRAME; |
|
|
|
if (picture_structure == PICT_FRAME) { |
|
sl->curr_pic_num = sl->frame_num; |
|
sl->max_pic_num = 1 << sps->log2_max_frame_num; |
|
} else { |
|
sl->curr_pic_num = 2 * sl->frame_num + 1; |
|
sl->max_pic_num = 1 << (sps->log2_max_frame_num + 1); |
|
} |
|
|
|
if (nal->type == H264_NAL_IDR_SLICE) |
|
get_ue_golomb(&sl->gb); /* idr_pic_id */ |
|
|
|
if (sps->poc_type == 0) { |
|
sl->poc_lsb = get_bits(&sl->gb, sps->log2_max_poc_lsb); |
|
|
|
if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME) |
|
sl->delta_poc_bottom = get_se_golomb(&sl->gb); |
|
} |
|
|
|
if (sps->poc_type == 1 && !sps->delta_pic_order_always_zero_flag) { |
|
sl->delta_poc[0] = get_se_golomb(&sl->gb); |
|
|
|
if (pps->pic_order_present == 1 && picture_structure == PICT_FRAME) |
|
sl->delta_poc[1] = get_se_golomb(&sl->gb); |
|
} |
|
|
|
sl->redundant_pic_count = 0; |
|
if (pps->redundant_pic_cnt_present) |
|
sl->redundant_pic_count = get_ue_golomb(&sl->gb); |
|
|
|
if (sl->slice_type_nos == AV_PICTURE_TYPE_B) |
|
sl->direct_spatial_mv_pred = get_bits1(&sl->gb); |
|
|
|
ret = ff_h264_parse_ref_count(&sl->list_count, sl->ref_count, |
|
&sl->gb, pps, sl->slice_type_nos, |
|
picture_structure); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (sl->slice_type_nos != AV_PICTURE_TYPE_I) { |
|
ret = ff_h264_decode_ref_pic_list_reordering(sl, avctx); |
|
if (ret < 0) { |
|
sl->ref_count[1] = sl->ref_count[0] = 0; |
|
return ret; |
|
} |
|
} |
|
|
|
sl->pwt.use_weight = 0; |
|
for (i = 0; i < 2; i++) { |
|
sl->pwt.luma_weight_flag[i] = 0; |
|
sl->pwt.chroma_weight_flag[i] = 0; |
|
} |
|
if ((pps->weighted_pred && sl->slice_type_nos == AV_PICTURE_TYPE_P) || |
|
(pps->weighted_bipred_idc == 1 && |
|
sl->slice_type_nos == AV_PICTURE_TYPE_B)) |
|
ff_h264_pred_weight_table(&sl->gb, sps, sl->ref_count, |
|
sl->slice_type_nos, &sl->pwt); |
|
|
|
sl->explicit_ref_marking = 0; |
|
if (nal->ref_idc) { |
|
ret = ff_h264_decode_ref_pic_marking(sl, &sl->gb, nal, avctx); |
|
if (ret < 0 && (avctx->err_recognition & AV_EF_EXPLODE)) |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
if (sl->slice_type_nos != AV_PICTURE_TYPE_I && pps->cabac) { |
|
tmp = get_ue_golomb_31(&sl->gb); |
|
if (tmp > 2) { |
|
av_log(avctx, AV_LOG_ERROR, "cabac_init_idc %u overflow\n", tmp); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
sl->cabac_init_idc = tmp; |
|
} |
|
|
|
sl->last_qscale_diff = 0; |
|
tmp = pps->init_qp + get_se_golomb(&sl->gb); |
|
if (tmp > 51 + 6 * (sps->bit_depth_luma - 8)) { |
|
av_log(avctx, AV_LOG_ERROR, "QP %u out of range\n", tmp); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
sl->qscale = tmp; |
|
sl->chroma_qp[0] = get_chroma_qp(pps, 0, sl->qscale); |
|
sl->chroma_qp[1] = get_chroma_qp(pps, 1, sl->qscale); |
|
// FIXME qscale / qp ... stuff |
|
if (sl->slice_type == AV_PICTURE_TYPE_SP) |
|
get_bits1(&sl->gb); /* sp_for_switch_flag */ |
|
if (sl->slice_type == AV_PICTURE_TYPE_SP || |
|
sl->slice_type == AV_PICTURE_TYPE_SI) |
|
get_se_golomb(&sl->gb); /* slice_qs_delta */ |
|
|
|
sl->deblocking_filter = 1; |
|
sl->slice_alpha_c0_offset = 0; |
|
sl->slice_beta_offset = 0; |
|
if (pps->deblocking_filter_parameters_present) { |
|
tmp = get_ue_golomb_31(&sl->gb); |
|
if (tmp > 2) { |
|
av_log(avctx, AV_LOG_ERROR, |
|
"deblocking_filter_idc %u out of range\n", tmp); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
sl->deblocking_filter = tmp; |
|
if (sl->deblocking_filter < 2) |
|
sl->deblocking_filter ^= 1; // 1<->0 |
|
|
|
if (sl->deblocking_filter) { |
|
sl->slice_alpha_c0_offset = get_se_golomb(&sl->gb) * 2; |
|
sl->slice_beta_offset = get_se_golomb(&sl->gb) * 2; |
|
if (sl->slice_alpha_c0_offset > 12 || |
|
sl->slice_alpha_c0_offset < -12 || |
|
sl->slice_beta_offset > 12 || |
|
sl->slice_beta_offset < -12) { |
|
av_log(avctx, AV_LOG_ERROR, |
|
"deblocking filter parameters %d %d out of range\n", |
|
sl->slice_alpha_c0_offset, sl->slice_beta_offset); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* do all the per-slice initialization needed before we can start decoding the |
|
* actual MBs */ |
|
static int h264_slice_init(H264Context *h, H264SliceContext *sl, |
|
const H2645NAL *nal) |
|
{ |
|
int i, j, ret = 0; |
|
|
|
if (h->current_slice > 0) { |
|
if (h->ps.pps != (const PPS*)h->ps.pps_list[sl->pps_id]->data) { |
|
av_log(h->avctx, AV_LOG_ERROR, "PPS changed between slices\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
if (h->picture_structure != sl->picture_structure || |
|
h->droppable != (nal->ref_idc == 0)) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"Changing field mode (%d -> %d) between slices is not allowed\n", |
|
h->picture_structure, sl->picture_structure); |
|
return AVERROR_INVALIDDATA; |
|
} else if (!h->cur_pic_ptr) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"unset cur_pic_ptr on slice %d\n", |
|
h->current_slice + 1); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
} |
|
|
|
if (h->picture_idr && nal->type != H264_NAL_IDR_SLICE) { |
|
av_log(h->avctx, AV_LOG_ERROR, "Invalid mix of IDR and non-IDR slices\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
assert(h->mb_num == h->mb_width * h->mb_height); |
|
if (sl->first_mb_addr << FIELD_OR_MBAFF_PICTURE(h) >= h->mb_num || |
|
sl->first_mb_addr >= h->mb_num) { |
|
av_log(h->avctx, AV_LOG_ERROR, "first_mb_in_slice overflow\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
sl->resync_mb_x = sl->mb_x = sl->first_mb_addr % h->mb_width; |
|
sl->resync_mb_y = sl->mb_y = (sl->first_mb_addr / h->mb_width) << |
|
FIELD_OR_MBAFF_PICTURE(h); |
|
if (h->picture_structure == PICT_BOTTOM_FIELD) |
|
sl->resync_mb_y = sl->mb_y = sl->mb_y + 1; |
|
assert(sl->mb_y < h->mb_height); |
|
|
|
ret = ff_h264_build_ref_list(h, sl); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (h->ps.pps->weighted_bipred_idc == 2 && |
|
sl->slice_type_nos == AV_PICTURE_TYPE_B) { |
|
implicit_weight_table(h, sl, -1); |
|
if (FRAME_MBAFF(h)) { |
|
implicit_weight_table(h, sl, 0); |
|
implicit_weight_table(h, sl, 1); |
|
} |
|
} |
|
|
|
if (sl->slice_type_nos == AV_PICTURE_TYPE_B && !sl->direct_spatial_mv_pred) |
|
ff_h264_direct_dist_scale_factor(h, sl); |
|
ff_h264_direct_ref_list_init(h, sl); |
|
|
|
if (h->avctx->skip_loop_filter >= AVDISCARD_ALL || |
|
(h->avctx->skip_loop_filter >= AVDISCARD_NONKEY && |
|
sl->slice_type_nos != AV_PICTURE_TYPE_I) || |
|
(h->avctx->skip_loop_filter >= AVDISCARD_BIDIR && |
|
sl->slice_type_nos == AV_PICTURE_TYPE_B) || |
|
(h->avctx->skip_loop_filter >= AVDISCARD_NONREF && |
|
nal->ref_idc == 0)) |
|
sl->deblocking_filter = 0; |
|
|
|
if (sl->deblocking_filter == 1 && h->nb_slice_ctx > 1) { |
|
if (h->avctx->flags2 & AV_CODEC_FLAG2_FAST) { |
|
/* Cheat slightly for speed: |
|
* Do not bother to deblock across slices. */ |
|
sl->deblocking_filter = 2; |
|
} else { |
|
h->postpone_filter = 1; |
|
} |
|
} |
|
sl->qp_thresh = 15 - |
|
FFMIN(sl->slice_alpha_c0_offset, sl->slice_beta_offset) - |
|
FFMAX3(0, |
|
h->ps.pps->chroma_qp_index_offset[0], |
|
h->ps.pps->chroma_qp_index_offset[1]) + |
|
6 * (h->ps.sps->bit_depth_luma - 8); |
|
|
|
sl->slice_num = ++h->current_slice; |
|
if (sl->slice_num >= MAX_SLICES) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"Too many slices, increase MAX_SLICES and recompile\n"); |
|
} |
|
|
|
for (j = 0; j < 2; j++) { |
|
int id_list[16]; |
|
int *ref2frm = h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][j]; |
|
for (i = 0; i < 16; i++) { |
|
id_list[i] = 60; |
|
if (j < sl->list_count && i < sl->ref_count[j] && |
|
sl->ref_list[j][i].parent->f->buf[0]) { |
|
int k; |
|
AVBuffer *buf = sl->ref_list[j][i].parent->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] + (sl->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] + |
|
(sl->ref_list[j][i].reference & 3); |
|
} |
|
|
|
if (h->avctx->debug & FF_DEBUG_PICT_INFO) { |
|
av_log(h->avctx, AV_LOG_DEBUG, |
|
"slice:%d %s mb:%d %c%s%s frame:%d poc:%d/%d ref:%d/%d qp:%d loop:%d:%d:%d weight:%d%s %s\n", |
|
sl->slice_num, |
|
(h->picture_structure == PICT_FRAME ? "F" : h->picture_structure == PICT_TOP_FIELD ? "T" : "B"), |
|
sl->mb_y * h->mb_width + sl->mb_x, |
|
av_get_picture_type_char(sl->slice_type), |
|
sl->slice_type_fixed ? " fix" : "", |
|
nal->type == H264_NAL_IDR_SLICE ? " IDR" : "", |
|
h->poc.frame_num, |
|
h->cur_pic_ptr->field_poc[0], |
|
h->cur_pic_ptr->field_poc[1], |
|
sl->ref_count[0], sl->ref_count[1], |
|
sl->qscale, |
|
sl->deblocking_filter, |
|
sl->slice_alpha_c0_offset, sl->slice_beta_offset, |
|
sl->pwt.use_weight, |
|
sl->pwt.use_weight == 1 && sl->pwt.use_weight_chroma ? "c" : "", |
|
sl->slice_type == AV_PICTURE_TYPE_B ? (sl->direct_spatial_mv_pred ? "SPAT" : "TEMP") : ""); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_h264_queue_decode_slice(H264Context *h, const H2645NAL *nal) |
|
{ |
|
H264SliceContext *sl = h->slice_ctx + h->nb_slice_ctx_queued; |
|
int ret; |
|
|
|
sl->gb = nal->gb; |
|
|
|
ret = h264_slice_header_parse(sl, nal, &h->ps, h->avctx); |
|
if (ret < 0) |
|
return ret; |
|
|
|
// discard redundant pictures |
|
if (sl->redundant_pic_count > 0) |
|
return 0; |
|
|
|
if (!h->setup_finished) { |
|
if (sl->first_mb_addr == 0) { // FIXME better field boundary detection |
|
// this slice starts a new field |
|
// first decode any pending queued slices |
|
if (h->nb_slice_ctx_queued) { |
|
H264SliceContext tmp_ctx; |
|
|
|
ret = ff_h264_execute_decode_slices(h); |
|
if (ret < 0 && (h->avctx->err_recognition & AV_EF_EXPLODE)) |
|
return ret; |
|
|
|
memcpy(&tmp_ctx, h->slice_ctx, sizeof(tmp_ctx)); |
|
memcpy(h->slice_ctx, sl, sizeof(tmp_ctx)); |
|
memcpy(sl, &tmp_ctx, sizeof(tmp_ctx)); |
|
sl = h->slice_ctx; |
|
} |
|
|
|
if (h->field_started) |
|
ff_h264_field_end(h, sl, 1); |
|
|
|
h->current_slice = 0; |
|
if (!h->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; |
|
} |
|
} |
|
|
|
if (h->current_slice == 0) { |
|
ret = h264_field_start(h, sl, nal); |
|
if (ret < 0) |
|
return ret; |
|
h->field_started = 1; |
|
} |
|
} |
|
|
|
ret = h264_slice_init(h, sl, nal); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if ((h->avctx->skip_frame < AVDISCARD_NONREF || nal->ref_idc) && |
|
(h->avctx->skip_frame < AVDISCARD_BIDIR || |
|
sl->slice_type_nos != AV_PICTURE_TYPE_B) && |
|
(h->avctx->skip_frame < AVDISCARD_NONKEY || |
|
h->cur_pic_ptr->f->key_frame) && |
|
h->avctx->skip_frame < AVDISCARD_ALL) { |
|
h->nb_slice_ctx_queued++; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_h264_get_slice_type(const H264SliceContext *sl) |
|
{ |
|
switch (sl->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(const H264Context *h, |
|
H264SliceContext *sl, |
|
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] = &sl->mv_cache[list][scan8[0]]; |
|
int8_t *ref_cache = &sl->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; |
|
const int *ref2frm = &h->ref2frm[h->slice_table[top_xy] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 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[h->cur_pic.ref_index[list][b8_xy + 0]]; |
|
ref_cache[2 - 1 * 8] = |
|
ref_cache[3 - 1 * 8] = ref2frm[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; |
|
const int *ref2frm = &h->ref2frm[h->slice_table[left_xy[LTOP]] & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 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[h->cur_pic.ref_index[list][b8_xy + 2 * 0]]; |
|
ref_cache[-1 + 16] = |
|
ref_cache[-1 + 24] = ref2frm[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]; |
|
const int *ref2frm = &h->ref2frm[sl->slice_num & (MAX_SLICES - 1)][list][(MB_MBAFF(sl) ? 20 : 2)]; |
|
uint32_t ref01 = (pack16to32(ref2frm[ref[0]], ref2frm[ref[1]]) & 0x00FF00FF) * 0x0101; |
|
uint32_t ref23 = (pack16to32(ref2frm[ref[2]], ref2frm[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 * sl->mb_x + 4 * sl->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(const H264Context *h, H264SliceContext *sl, int mb_type) |
|
{ |
|
const int mb_xy = sl->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(sl)); |
|
|
|
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 (sl->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; |
|
} |
|
} |
|
|
|
sl->top_mb_xy = top_xy; |
|
sl->left_mb_xy[LTOP] = left_xy[LTOP]; |
|
sl->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 = sl->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 (sl->deblocking_filter == 2) { |
|
if (h->slice_table[top_xy] != sl->slice_num) |
|
top_type = 0; |
|
if (h->slice_table[left_xy[LBOT]] != sl->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; |
|
} |
|
sl->top_type = top_type; |
|
sl->left_type[LTOP] = left_type[LTOP]; |
|
sl->left_type[LBOT] = left_type[LBOT]; |
|
|
|
if (IS_INTRA(mb_type)) |
|
return 0; |
|
|
|
fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy, |
|
top_type, left_type, mb_xy, 0); |
|
if (sl->list_count == 2) |
|
fill_filter_caches_inter(h, sl, mb_type, top_xy, left_xy, |
|
top_type, left_type, mb_xy, 1); |
|
|
|
nnz = h->non_zero_count[mb_xy]; |
|
nnz_cache = sl->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]); |
|
sl->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->ps.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]] = (sl->cbp & 0x1000) >> 12; |
|
|
|
nnz_cache[scan8[0 + 4]] = |
|
nnz_cache[scan8[1 + 4]] = |
|
nnz_cache[scan8[2 + 4]] = |
|
nnz_cache[scan8[3 + 4]] = (sl->cbp & 0x2000) >> 12; |
|
|
|
nnz_cache[scan8[0 + 8]] = |
|
nnz_cache[scan8[1 + 8]] = |
|
nnz_cache[scan8[2 + 8]] = |
|
nnz_cache[scan8[3 + 8]] = (sl->cbp & 0x4000) >> 12; |
|
|
|
nnz_cache[scan8[0 + 12]] = |
|
nnz_cache[scan8[1 + 12]] = |
|
nnz_cache[scan8[2 + 12]] = |
|
nnz_cache[scan8[3 + 12]] = (sl->cbp & 0x8000) >> 12; |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void loop_filter(const H264Context *h, H264SliceContext *sl, 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 = sl->mb_y + FRAME_MBAFF(h); |
|
const int old_slice_type = sl->slice_type; |
|
const int pixel_shift = h->pixel_shift; |
|
const int block_h = 16 >> h->chroma_y_shift; |
|
|
|
if (h->postpone_filter) |
|
return; |
|
|
|
if (sl->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 = sl->mb_xy = mb_x + mb_y * h->mb_stride; |
|
mb_type = h->cur_pic.mb_type[mb_xy]; |
|
|
|
if (FRAME_MBAFF(h)) |
|
sl->mb_mbaff = |
|
sl->mb_field_decoding_flag = !!IS_INTERLACED(mb_type); |
|
|
|
sl->mb_x = mb_x; |
|
sl->mb_y = mb_y; |
|
dest_y = h->cur_pic.f->data[0] + |
|
((mb_x << pixel_shift) + mb_y * sl->linesize) * 16; |
|
dest_cb = h->cur_pic.f->data[1] + |
|
(mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
|
mb_y * sl->uvlinesize * block_h; |
|
dest_cr = h->cur_pic.f->data[2] + |
|
(mb_x << pixel_shift) * (8 << CHROMA444(h)) + |
|
mb_y * sl->uvlinesize * block_h; |
|
// FIXME simplify above |
|
|
|
if (MB_FIELD(sl)) { |
|
linesize = sl->mb_linesize = sl->linesize * 2; |
|
uvlinesize = sl->mb_uvlinesize = sl->uvlinesize * 2; |
|
if (mb_y & 1) { // FIXME move out of this function? |
|
dest_y -= sl->linesize * 15; |
|
dest_cb -= sl->uvlinesize * (block_h - 1); |
|
dest_cr -= sl->uvlinesize * (block_h - 1); |
|
} |
|
} else { |
|
linesize = sl->mb_linesize = sl->linesize; |
|
uvlinesize = sl->mb_uvlinesize = sl->uvlinesize; |
|
} |
|
backup_mb_border(h, sl, dest_y, dest_cb, dest_cr, linesize, |
|
uvlinesize, 0); |
|
if (fill_filter_caches(h, sl, mb_type)) |
|
continue; |
|
sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, h->cur_pic.qscale_table[mb_xy]); |
|
sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, h->cur_pic.qscale_table[mb_xy]); |
|
|
|
if (FRAME_MBAFF(h)) { |
|
ff_h264_filter_mb(h, sl, mb_x, mb_y, dest_y, dest_cb, dest_cr, |
|
linesize, uvlinesize); |
|
} else { |
|
ff_h264_filter_mb_fast(h, sl, mb_x, mb_y, dest_y, dest_cb, |
|
dest_cr, linesize, uvlinesize); |
|
} |
|
} |
|
} |
|
sl->slice_type = old_slice_type; |
|
sl->mb_x = end_x; |
|
sl->mb_y = end_mb_y - FRAME_MBAFF(h); |
|
sl->chroma_qp[0] = get_chroma_qp(h->ps.pps, 0, sl->qscale); |
|
sl->chroma_qp[1] = get_chroma_qp(h->ps.pps, 1, sl->qscale); |
|
} |
|
|
|
static void predict_field_decoding_flag(const H264Context *h, H264SliceContext *sl) |
|
{ |
|
const int mb_xy = sl->mb_x + sl->mb_y * h->mb_stride; |
|
int mb_type = (h->slice_table[mb_xy - 1] == sl->slice_num) ? |
|
h->cur_pic.mb_type[mb_xy - 1] : |
|
(h->slice_table[mb_xy - h->mb_stride] == sl->slice_num) ? |
|
h->cur_pic.mb_type[mb_xy - h->mb_stride] : 0; |
|
sl->mb_mbaff = sl->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(const H264Context *h, H264SliceContext *sl) |
|
{ |
|
int top = 16 * (sl->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 (sl->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, sl, top, height); |
|
|
|
if (h->droppable) |
|
return; |
|
|
|
ff_thread_report_progress(&h->cur_pic_ptr->tf, top + height - 1, |
|
h->picture_structure == PICT_BOTTOM_FIELD); |
|
} |
|
|
|
static void er_add_slice(H264SliceContext *sl, |
|
int startx, int starty, |
|
int endx, int endy, int status) |
|
{ |
|
#if CONFIG_ERROR_RESILIENCE |
|
ERContext *er = &sl->er; |
|
|
|
if (!sl->h264->enable_er) |
|
return; |
|
|
|
er->ref_count = sl->ref_count[0]; |
|
ff_er_add_slice(er, startx, starty, endx, endy, status); |
|
#endif |
|
} |
|
|
|
static int decode_slice(struct AVCodecContext *avctx, void *arg) |
|
{ |
|
H264SliceContext *sl = arg; |
|
const H264Context *h = sl->h264; |
|
int lf_x_start = sl->mb_x; |
|
int orig_deblock = sl->deblocking_filter; |
|
int ret; |
|
|
|
sl->linesize = h->cur_pic_ptr->f->linesize[0]; |
|
sl->uvlinesize = h->cur_pic_ptr->f->linesize[1]; |
|
|
|
ret = alloc_scratch_buffers(sl, sl->linesize); |
|
if (ret < 0) |
|
return ret; |
|
|
|
sl->mb_skip_run = -1; |
|
|
|
if (h->postpone_filter) |
|
sl->deblocking_filter = 0; |
|
|
|
sl->is_complex = FRAME_MBAFF(h) || h->picture_structure != PICT_FRAME || |
|
(CONFIG_GRAY && (h->flags & AV_CODEC_FLAG_GRAY)); |
|
|
|
if (h->ps.pps->cabac) { |
|
/* realign */ |
|
align_get_bits(&sl->gb); |
|
|
|
/* init cabac */ |
|
ff_init_cabac_decoder(&sl->cabac, |
|
sl->gb.buffer + get_bits_count(&sl->gb) / 8, |
|
(get_bits_left(&sl->gb) + 7) / 8); |
|
|
|
ff_h264_init_cabac_states(h, sl); |
|
|
|
for (;;) { |
|
// START_TIMER |
|
int ret, eos; |
|
|
|
if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) { |
|
av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n", |
|
sl->next_slice_idx); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
ret = ff_h264_decode_mb_cabac(h, sl); |
|
// STOP_TIMER("decode_mb_cabac") |
|
|
|
if (ret >= 0) |
|
ff_h264_hl_decode_mb(h, sl); |
|
|
|
// FIXME optimal? or let mb_decode decode 16x32 ? |
|
if (ret >= 0 && FRAME_MBAFF(h)) { |
|
sl->mb_y++; |
|
|
|
ret = ff_h264_decode_mb_cabac(h, sl); |
|
|
|
if (ret >= 0) |
|
ff_h264_hl_decode_mb(h, sl); |
|
sl->mb_y--; |
|
} |
|
eos = get_cabac_terminate(&sl->cabac); |
|
|
|
if ((h->workaround_bugs & FF_BUG_TRUNCATED) && |
|
sl->cabac.bytestream > sl->cabac.bytestream_end + 2) { |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1, |
|
sl->mb_y, ER_MB_END); |
|
if (sl->mb_x >= lf_x_start) |
|
loop_filter(h, sl, lf_x_start, sl->mb_x + 1); |
|
goto finish; |
|
} |
|
if (ret < 0 || sl->cabac.bytestream > sl->cabac.bytestream_end + 2) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"error while decoding MB %d %d, bytestream %td\n", |
|
sl->mb_x, sl->mb_y, |
|
sl->cabac.bytestream_end - sl->cabac.bytestream); |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x, |
|
sl->mb_y, ER_MB_ERROR); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
if (++sl->mb_x >= h->mb_width) { |
|
loop_filter(h, sl, lf_x_start, sl->mb_x); |
|
sl->mb_x = lf_x_start = 0; |
|
decode_finish_row(h, sl); |
|
++sl->mb_y; |
|
if (FIELD_OR_MBAFF_PICTURE(h)) { |
|
++sl->mb_y; |
|
if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height) |
|
predict_field_decoding_flag(h, sl); |
|
} |
|
} |
|
|
|
if (eos || sl->mb_y >= h->mb_height) { |
|
ff_tlog(h->avctx, "slice end %d %d\n", |
|
get_bits_count(&sl->gb), sl->gb.size_in_bits); |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x - 1, |
|
sl->mb_y, ER_MB_END); |
|
if (sl->mb_x > lf_x_start) |
|
loop_filter(h, sl, lf_x_start, sl->mb_x); |
|
goto finish; |
|
} |
|
} |
|
} else { |
|
for (;;) { |
|
int ret; |
|
|
|
if (sl->mb_x + sl->mb_y * h->mb_width >= sl->next_slice_idx) { |
|
av_log(h->avctx, AV_LOG_ERROR, "Slice overlaps with next at %d\n", |
|
sl->next_slice_idx); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
ret = ff_h264_decode_mb_cavlc(h, sl); |
|
|
|
if (ret >= 0) |
|
ff_h264_hl_decode_mb(h, sl); |
|
|
|
// FIXME optimal? or let mb_decode decode 16x32 ? |
|
if (ret >= 0 && FRAME_MBAFF(h)) { |
|
sl->mb_y++; |
|
ret = ff_h264_decode_mb_cavlc(h, sl); |
|
|
|
if (ret >= 0) |
|
ff_h264_hl_decode_mb(h, sl); |
|
sl->mb_y--; |
|
} |
|
|
|
if (ret < 0) { |
|
av_log(h->avctx, AV_LOG_ERROR, |
|
"error while decoding MB %d %d\n", sl->mb_x, sl->mb_y); |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x, |
|
sl->mb_y, ER_MB_ERROR); |
|
return ret; |
|
} |
|
|
|
if (++sl->mb_x >= h->mb_width) { |
|
loop_filter(h, sl, lf_x_start, sl->mb_x); |
|
sl->mb_x = lf_x_start = 0; |
|
decode_finish_row(h, sl); |
|
++sl->mb_y; |
|
if (FIELD_OR_MBAFF_PICTURE(h)) { |
|
++sl->mb_y; |
|
if (FRAME_MBAFF(h) && sl->mb_y < h->mb_height) |
|
predict_field_decoding_flag(h, sl); |
|
} |
|
if (sl->mb_y >= h->mb_height) { |
|
ff_tlog(h->avctx, "slice end %d %d\n", |
|
get_bits_count(&sl->gb), sl->gb.size_in_bits); |
|
|
|
if (get_bits_left(&sl->gb) == 0) { |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, |
|
sl->mb_x - 1, sl->mb_y, ER_MB_END); |
|
|
|
goto finish; |
|
} else { |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, |
|
sl->mb_x - 1, sl->mb_y, ER_MB_END); |
|
|
|
return AVERROR_INVALIDDATA; |
|
} |
|
} |
|
} |
|
|
|
if (get_bits_left(&sl->gb) <= 0 && sl->mb_skip_run <= 0) { |
|
ff_tlog(h->avctx, "slice end %d %d\n", |
|
get_bits_count(&sl->gb), sl->gb.size_in_bits); |
|
|
|
if (get_bits_left(&sl->gb) == 0) { |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, |
|
sl->mb_x - 1, sl->mb_y, ER_MB_END); |
|
if (sl->mb_x > lf_x_start) |
|
loop_filter(h, sl, lf_x_start, sl->mb_x); |
|
|
|
goto finish; |
|
} else { |
|
er_add_slice(sl, sl->resync_mb_x, sl->resync_mb_y, sl->mb_x, |
|
sl->mb_y, ER_MB_ERROR); |
|
|
|
return AVERROR_INVALIDDATA; |
|
} |
|
} |
|
} |
|
} |
|
|
|
finish: |
|
sl->deblocking_filter = orig_deblock; |
|
return 0; |
|
} |
|
|
|
/** |
|
* Call decode_slice() for each context. |
|
* |
|
* @param h h264 master context |
|
*/ |
|
int ff_h264_execute_decode_slices(H264Context *h) |
|
{ |
|
AVCodecContext *const avctx = h->avctx; |
|
H264SliceContext *sl; |
|
int context_count = h->nb_slice_ctx_queued; |
|
int ret = 0; |
|
int i, j; |
|
|
|
if (h->avctx->hwaccel || context_count < 1) |
|
return 0; |
|
if (context_count == 1) { |
|
|
|
h->slice_ctx[0].next_slice_idx = h->mb_width * h->mb_height; |
|
h->postpone_filter = 0; |
|
|
|
ret = decode_slice(avctx, &h->slice_ctx[0]); |
|
h->mb_y = h->slice_ctx[0].mb_y; |
|
if (ret < 0) |
|
goto finish; |
|
} else { |
|
for (i = 0; i < context_count; i++) { |
|
int next_slice_idx = h->mb_width * h->mb_height; |
|
int slice_idx; |
|
|
|
sl = &h->slice_ctx[i]; |
|
sl->er.error_count = 0; |
|
|
|
/* make sure none of those slices overlap */ |
|
slice_idx = sl->mb_y * h->mb_width + sl->mb_x; |
|
for (j = 0; j < context_count; j++) { |
|
H264SliceContext *sl2 = &h->slice_ctx[j]; |
|
int slice_idx2 = sl2->mb_y * h->mb_width + sl2->mb_x; |
|
|
|
if (i == j || slice_idx2 < slice_idx) |
|
continue; |
|
next_slice_idx = FFMIN(next_slice_idx, slice_idx2); |
|
} |
|
sl->next_slice_idx = next_slice_idx; |
|
} |
|
|
|
avctx->execute(avctx, decode_slice, h->slice_ctx, |
|
NULL, context_count, sizeof(h->slice_ctx[0])); |
|
|
|
/* pull back stuff from slices to master context */ |
|
sl = &h->slice_ctx[context_count - 1]; |
|
h->mb_y = sl->mb_y; |
|
for (i = 1; i < context_count; i++) |
|
h->slice_ctx[0].er.error_count += h->slice_ctx[i].er.error_count; |
|
|
|
if (h->postpone_filter) { |
|
h->postpone_filter = 0; |
|
|
|
for (i = 0; i < context_count; i++) { |
|
int y_end, x_end; |
|
|
|
sl = &h->slice_ctx[i]; |
|
y_end = FFMIN(sl->mb_y + 1, h->mb_height); |
|
x_end = (sl->mb_y >= h->mb_height) ? h->mb_width : sl->mb_x; |
|
|
|
for (j = sl->resync_mb_y; j < y_end; j += 1 + FIELD_OR_MBAFF_PICTURE(h)) { |
|
sl->mb_y = j; |
|
loop_filter(h, sl, j > sl->resync_mb_y ? 0 : sl->resync_mb_x, |
|
j == y_end - 1 ? x_end : h->mb_width); |
|
} |
|
} |
|
} |
|
} |
|
|
|
finish: |
|
h->nb_slice_ctx_queued = 0; |
|
return ret; |
|
}
|
|
|