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2414 lines
92 KiB
2414 lines
92 KiB
/* |
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* The simplest mpeg encoder (well, it was the simplest!) |
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* Copyright (c) 2000,2001 Fabrice Bellard |
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* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* 4MV & hq & B-frame encoding stuff by Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 libavcodec/mpegvideo.c |
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* The simplest mpeg encoder (well, it was the simplest!). |
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*/ |
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|
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#include "libavutil/intmath.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "mpegvideo.h" |
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#include "mpegvideo_common.h" |
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#include "mjpegenc.h" |
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#include "msmpeg4.h" |
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#include "faandct.h" |
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#include "xvmc_internal.h" |
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#include <limits.h> |
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|
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//#undef NDEBUG |
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//#include <assert.h> |
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|
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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_h263_intra_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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static void dct_unquantize_h263_inter_c(MpegEncContext *s, |
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DCTELEM *block, int n, int qscale); |
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|
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/* enable all paranoid tests for rounding, overflows, etc... */ |
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//#define PARANOID |
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|
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//#define DEBUG |
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static const uint8_t ff_default_chroma_qscale_table[32]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 |
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}; |
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|
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const uint8_t ff_mpeg1_dc_scale_table[128]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, |
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}; |
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static const uint8_t mpeg2_dc_scale_table1[128]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, |
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}; |
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static const uint8_t mpeg2_dc_scale_table2[128]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, |
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}; |
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static const uint8_t mpeg2_dc_scale_table3[128]={ |
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// 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, |
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}; |
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const uint8_t * const ff_mpeg2_dc_scale_table[4]={ |
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ff_mpeg1_dc_scale_table, |
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mpeg2_dc_scale_table1, |
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mpeg2_dc_scale_table2, |
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mpeg2_dc_scale_table3, |
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}; |
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const enum PixelFormat ff_pixfmt_list_420[] = { |
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PIX_FMT_YUV420P, |
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PIX_FMT_NONE |
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}; |
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const enum PixelFormat ff_hwaccel_pixfmt_list_420[] = { |
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PIX_FMT_DXVA2_VLD, |
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PIX_FMT_VAAPI_VLD, |
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PIX_FMT_YUV420P, |
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PIX_FMT_NONE |
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}; |
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const uint8_t *ff_find_start_code(const uint8_t * restrict p, const uint8_t *end, uint32_t * restrict state){ |
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int i; |
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assert(p<=end); |
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if(p>=end) |
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return end; |
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for(i=0; i<3; i++){ |
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uint32_t tmp= *state << 8; |
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*state= tmp + *(p++); |
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if(tmp == 0x100 || p==end) |
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return p; |
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} |
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while(p<end){ |
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if (p[-1] > 1 ) p+= 3; |
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else if(p[-2] ) p+= 2; |
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else if(p[-3]|(p[-1]-1)) p++; |
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else{ |
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p++; |
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break; |
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} |
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} |
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p= FFMIN(p, end)-4; |
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*state= AV_RB32(p); |
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return p+4; |
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} |
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/* init common dct for both encoder and decoder */ |
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av_cold int ff_dct_common_init(MpegEncContext *s) |
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{ |
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s->dct_unquantize_h263_intra = dct_unquantize_h263_intra_c; |
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s->dct_unquantize_h263_inter = dct_unquantize_h263_inter_c; |
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s->dct_unquantize_mpeg1_intra = dct_unquantize_mpeg1_intra_c; |
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s->dct_unquantize_mpeg1_inter = dct_unquantize_mpeg1_inter_c; |
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_c; |
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if(s->flags & CODEC_FLAG_BITEXACT) |
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s->dct_unquantize_mpeg2_intra = dct_unquantize_mpeg2_intra_bitexact; |
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s->dct_unquantize_mpeg2_inter = dct_unquantize_mpeg2_inter_c; |
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#if HAVE_MMX |
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MPV_common_init_mmx(s); |
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#elif ARCH_ALPHA |
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MPV_common_init_axp(s); |
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#elif CONFIG_MLIB |
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MPV_common_init_mlib(s); |
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#elif HAVE_MMI |
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MPV_common_init_mmi(s); |
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#elif ARCH_ARM |
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MPV_common_init_arm(s); |
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#elif HAVE_ALTIVEC |
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MPV_common_init_altivec(s); |
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#elif ARCH_BFIN |
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MPV_common_init_bfin(s); |
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#endif |
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|
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/* load & permutate scantables |
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note: only wmv uses different ones |
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*/ |
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if(s->alternate_scan){ |
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ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_alternate_vertical_scan); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_alternate_vertical_scan); |
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}else{ |
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ff_init_scantable(s->dsp.idct_permutation, &s->inter_scantable , ff_zigzag_direct); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_scantable , ff_zigzag_direct); |
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} |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_h_scantable, ff_alternate_horizontal_scan); |
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ff_init_scantable(s->dsp.idct_permutation, &s->intra_v_scantable, ff_alternate_vertical_scan); |
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return 0; |
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} |
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void ff_copy_picture(Picture *dst, Picture *src){ |
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*dst = *src; |
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dst->type= FF_BUFFER_TYPE_COPY; |
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} |
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/** |
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* Releases a frame buffer |
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*/ |
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static void free_frame_buffer(MpegEncContext *s, Picture *pic) |
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{ |
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s->avctx->release_buffer(s->avctx, (AVFrame*)pic); |
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av_freep(&pic->hwaccel_picture_private); |
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} |
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/** |
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* Allocates a frame buffer |
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*/ |
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static int alloc_frame_buffer(MpegEncContext *s, Picture *pic) |
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{ |
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int r; |
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|
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if (s->avctx->hwaccel) { |
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assert(!pic->hwaccel_picture_private); |
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if (s->avctx->hwaccel->priv_data_size) { |
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pic->hwaccel_picture_private = av_mallocz(s->avctx->hwaccel->priv_data_size); |
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if (!pic->hwaccel_picture_private) { |
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av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n"); |
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return -1; |
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} |
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} |
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} |
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r = s->avctx->get_buffer(s->avctx, (AVFrame*)pic); |
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if (r<0 || !pic->age || !pic->type || !pic->data[0]) { |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %d %d %p)\n", r, pic->age, pic->type, pic->data[0]); |
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av_freep(&pic->hwaccel_picture_private); |
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return -1; |
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} |
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if (s->linesize && (s->linesize != pic->linesize[0] || s->uvlinesize != pic->linesize[1])) { |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (stride changed)\n"); |
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free_frame_buffer(s, pic); |
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return -1; |
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} |
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if (pic->linesize[1] != pic->linesize[2]) { |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (uv stride mismatch)\n"); |
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free_frame_buffer(s, pic); |
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return -1; |
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} |
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return 0; |
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} |
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/** |
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* allocates a Picture |
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* The pixels are allocated/set by calling get_buffer() if shared=0 |
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*/ |
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int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared){ |
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const int big_mb_num= s->mb_stride*(s->mb_height+1) + 1; //the +1 is needed so memset(,,stride*height) does not sig11 |
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const int mb_array_size= s->mb_stride*s->mb_height; |
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const int b8_array_size= s->b8_stride*s->mb_height*2; |
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const int b4_array_size= s->b4_stride*s->mb_height*4; |
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int i; |
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int r= -1; |
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if(shared){ |
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assert(pic->data[0]); |
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assert(pic->type == 0 || pic->type == FF_BUFFER_TYPE_SHARED); |
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pic->type= FF_BUFFER_TYPE_SHARED; |
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}else{ |
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assert(!pic->data[0]); |
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if (alloc_frame_buffer(s, pic) < 0) |
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return -1; |
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s->linesize = pic->linesize[0]; |
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s->uvlinesize= pic->linesize[1]; |
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} |
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if(pic->qscale_table==NULL){ |
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if (s->encoding) { |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_var , mb_array_size * sizeof(int16_t) , fail) |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->mc_mb_var, mb_array_size * sizeof(int16_t) , fail) |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_mean , mb_array_size * sizeof(int8_t ) , fail) |
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} |
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|
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->mbskip_table , mb_array_size * sizeof(uint8_t)+2, fail) //the +2 is for the slice end check |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->qscale_table , mb_array_size * sizeof(uint8_t) , fail) |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->mb_type_base , (big_mb_num + s->mb_stride) * sizeof(uint32_t), fail) |
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pic->mb_type= pic->mb_type_base + 2*s->mb_stride+1; |
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if(s->out_format == FMT_H264){ |
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for(i=0; i<2; i++){ |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->motion_val_base[i], 2 * (b4_array_size+4) * sizeof(int16_t), fail) |
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pic->motion_val[i]= pic->motion_val_base[i]+4; |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->ref_index[i], 4*mb_array_size * sizeof(uint8_t), fail) |
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} |
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pic->motion_subsample_log2= 2; |
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}else if(s->out_format == FMT_H263 || s->encoding || (s->avctx->debug&FF_DEBUG_MV) || (s->avctx->debug_mv)){ |
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for(i=0; i<2; i++){ |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->motion_val_base[i], 2 * (b8_array_size+4) * sizeof(int16_t), fail) |
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pic->motion_val[i]= pic->motion_val_base[i]+4; |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->ref_index[i], b8_array_size * sizeof(uint8_t), fail) |
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} |
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pic->motion_subsample_log2= 3; |
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} |
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if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->dct_coeff, 64 * mb_array_size * sizeof(DCTELEM)*6, fail) |
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} |
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pic->qstride= s->mb_stride; |
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FF_ALLOCZ_OR_GOTO(s->avctx, pic->pan_scan , 1 * sizeof(AVPanScan), fail) |
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} |
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|
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/* It might be nicer if the application would keep track of these |
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* but it would require an API change. */ |
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memmove(s->prev_pict_types+1, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE-1); |
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s->prev_pict_types[0]= s->dropable ? FF_B_TYPE : s->pict_type; |
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if(pic->age < PREV_PICT_TYPES_BUFFER_SIZE && s->prev_pict_types[pic->age] == FF_B_TYPE) |
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pic->age= INT_MAX; // Skipped MBs in B-frames are quite rare in MPEG-1/2 and it is a bit tricky to skip them anyway. |
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|
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return 0; |
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fail: //for the FF_ALLOCZ_OR_GOTO macro |
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if(r>=0) |
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free_frame_buffer(s, pic); |
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return -1; |
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} |
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|
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/** |
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* deallocates a picture |
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*/ |
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static void free_picture(MpegEncContext *s, Picture *pic){ |
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int i; |
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|
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if(pic->data[0] && pic->type!=FF_BUFFER_TYPE_SHARED){ |
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free_frame_buffer(s, pic); |
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} |
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|
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av_freep(&pic->mb_var); |
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av_freep(&pic->mc_mb_var); |
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av_freep(&pic->mb_mean); |
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av_freep(&pic->mbskip_table); |
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av_freep(&pic->qscale_table); |
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av_freep(&pic->mb_type_base); |
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av_freep(&pic->dct_coeff); |
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av_freep(&pic->pan_scan); |
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pic->mb_type= NULL; |
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for(i=0; i<2; i++){ |
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av_freep(&pic->motion_val_base[i]); |
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av_freep(&pic->ref_index[i]); |
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} |
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|
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if(pic->type == FF_BUFFER_TYPE_SHARED){ |
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for(i=0; i<4; i++){ |
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pic->base[i]= |
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pic->data[i]= NULL; |
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} |
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pic->type= 0; |
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} |
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} |
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|
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static int init_duplicate_context(MpegEncContext *s, MpegEncContext *base){ |
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int i; |
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|
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// edge emu needs blocksize + filter length - 1 (=17x17 for halfpel / 21x21 for h264) |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->allocated_edge_emu_buffer, (s->width+64)*2*21*2, fail); //(width + edge + align)*interlaced*MBsize*tolerance |
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s->edge_emu_buffer= s->allocated_edge_emu_buffer + (s->width+64)*2*21; |
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|
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//FIXME should be linesize instead of s->width*2 but that is not known before get_buffer() |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, (s->width+64)*4*16*2*sizeof(uint8_t), fail) |
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s->me.temp= s->me.scratchpad; |
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s->rd_scratchpad= s->me.scratchpad; |
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s->b_scratchpad= s->me.scratchpad; |
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s->obmc_scratchpad= s->me.scratchpad + 16; |
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if (s->encoding) { |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map , ME_MAP_SIZE*sizeof(uint32_t), fail) |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map, ME_MAP_SIZE*sizeof(uint32_t), fail) |
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if(s->avctx->noise_reduction){ |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum, 2 * 64 * sizeof(int), fail) |
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} |
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} |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64*12*2 * sizeof(DCTELEM), fail) |
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s->block= s->blocks[0]; |
|
|
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for(i=0;i<12;i++){ |
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s->pblocks[i] = &s->block[i]; |
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} |
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return 0; |
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fail: |
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return -1; //free() through MPV_common_end() |
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} |
|
|
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static void free_duplicate_context(MpegEncContext *s){ |
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if(s==NULL) return; |
|
|
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av_freep(&s->allocated_edge_emu_buffer); s->edge_emu_buffer= NULL; |
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av_freep(&s->me.scratchpad); |
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s->me.temp= |
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s->rd_scratchpad= |
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s->b_scratchpad= |
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s->obmc_scratchpad= NULL; |
|
|
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av_freep(&s->dct_error_sum); |
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av_freep(&s->me.map); |
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av_freep(&s->me.score_map); |
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av_freep(&s->blocks); |
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s->block= NULL; |
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} |
|
|
|
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src){ |
|
#define COPY(a) bak->a= src->a |
|
COPY(allocated_edge_emu_buffer); |
|
COPY(edge_emu_buffer); |
|
COPY(me.scratchpad); |
|
COPY(me.temp); |
|
COPY(rd_scratchpad); |
|
COPY(b_scratchpad); |
|
COPY(obmc_scratchpad); |
|
COPY(me.map); |
|
COPY(me.score_map); |
|
COPY(blocks); |
|
COPY(block); |
|
COPY(start_mb_y); |
|
COPY(end_mb_y); |
|
COPY(me.map_generation); |
|
COPY(pb); |
|
COPY(dct_error_sum); |
|
COPY(dct_count[0]); |
|
COPY(dct_count[1]); |
|
#undef COPY |
|
} |
|
|
|
void ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src){ |
|
MpegEncContext bak; |
|
int i; |
|
//FIXME copy only needed parts |
|
//START_TIMER |
|
backup_duplicate_context(&bak, dst); |
|
memcpy(dst, src, sizeof(MpegEncContext)); |
|
backup_duplicate_context(dst, &bak); |
|
for(i=0;i<12;i++){ |
|
dst->pblocks[i] = &dst->block[i]; |
|
} |
|
//STOP_TIMER("update_duplicate_context") //about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads |
|
} |
|
|
|
/** |
|
* sets the given MpegEncContext to common defaults (same for encoding and decoding). |
|
* the changed fields will not depend upon the prior state of the MpegEncContext. |
|
*/ |
|
void MPV_common_defaults(MpegEncContext *s){ |
|
s->y_dc_scale_table= |
|
s->c_dc_scale_table= ff_mpeg1_dc_scale_table; |
|
s->chroma_qscale_table= ff_default_chroma_qscale_table; |
|
s->progressive_frame= 1; |
|
s->progressive_sequence= 1; |
|
s->picture_structure= PICT_FRAME; |
|
|
|
s->coded_picture_number = 0; |
|
s->picture_number = 0; |
|
s->input_picture_number = 0; |
|
|
|
s->picture_in_gop_number = 0; |
|
|
|
s->f_code = 1; |
|
s->b_code = 1; |
|
} |
|
|
|
/** |
|
* sets the given MpegEncContext to defaults for decoding. |
|
* the changed fields will not depend upon the prior state of the MpegEncContext. |
|
*/ |
|
void MPV_decode_defaults(MpegEncContext *s){ |
|
MPV_common_defaults(s); |
|
} |
|
|
|
/** |
|
* init common structure for both encoder and decoder. |
|
* this assumes that some variables like width/height are already set |
|
*/ |
|
av_cold int MPV_common_init(MpegEncContext *s) |
|
{ |
|
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y, threads; |
|
|
|
if(s->codec_id == CODEC_ID_MPEG2VIDEO && !s->progressive_sequence) |
|
s->mb_height = (s->height + 31) / 32 * 2; |
|
else |
|
s->mb_height = (s->height + 15) / 16; |
|
|
|
if(s->avctx->pix_fmt == PIX_FMT_NONE){ |
|
av_log(s->avctx, AV_LOG_ERROR, "decoding to PIX_FMT_NONE is not supported.\n"); |
|
return -1; |
|
} |
|
|
|
if(s->avctx->thread_count > MAX_THREADS || (s->avctx->thread_count > s->mb_height && s->mb_height)){ |
|
av_log(s->avctx, AV_LOG_ERROR, "too many threads\n"); |
|
return -1; |
|
} |
|
|
|
if((s->width || s->height) && avcodec_check_dimensions(s->avctx, s->width, s->height)) |
|
return -1; |
|
|
|
dsputil_init(&s->dsp, s->avctx); |
|
ff_dct_common_init(s); |
|
|
|
s->flags= s->avctx->flags; |
|
s->flags2= s->avctx->flags2; |
|
|
|
s->mb_width = (s->width + 15) / 16; |
|
s->mb_stride = s->mb_width + 1; |
|
s->b8_stride = s->mb_width*2 + 1; |
|
s->b4_stride = s->mb_width*4 + 1; |
|
mb_array_size= s->mb_height * s->mb_stride; |
|
mv_table_size= (s->mb_height+2) * s->mb_stride + 1; |
|
|
|
/* set chroma shifts */ |
|
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt,&(s->chroma_x_shift), |
|
&(s->chroma_y_shift) ); |
|
|
|
/* set default edge pos, will be overriden in decode_header if needed */ |
|
s->h_edge_pos= s->mb_width*16; |
|
s->v_edge_pos= s->mb_height*16; |
|
|
|
s->mb_num = s->mb_width * s->mb_height; |
|
|
|
s->block_wrap[0]= |
|
s->block_wrap[1]= |
|
s->block_wrap[2]= |
|
s->block_wrap[3]= s->b8_stride; |
|
s->block_wrap[4]= |
|
s->block_wrap[5]= s->mb_stride; |
|
|
|
y_size = s->b8_stride * (2 * s->mb_height + 1); |
|
c_size = s->mb_stride * (s->mb_height + 1); |
|
yc_size = y_size + 2 * c_size; |
|
|
|
/* convert fourcc to upper case */ |
|
s->codec_tag= toupper( s->avctx->codec_tag &0xFF) |
|
+ (toupper((s->avctx->codec_tag>>8 )&0xFF)<<8 ) |
|
+ (toupper((s->avctx->codec_tag>>16)&0xFF)<<16) |
|
+ (toupper((s->avctx->codec_tag>>24)&0xFF)<<24); |
|
|
|
s->stream_codec_tag= toupper( s->avctx->stream_codec_tag &0xFF) |
|
+ (toupper((s->avctx->stream_codec_tag>>8 )&0xFF)<<8 ) |
|
+ (toupper((s->avctx->stream_codec_tag>>16)&0xFF)<<16) |
|
+ (toupper((s->avctx->stream_codec_tag>>24)&0xFF)<<24); |
|
|
|
s->avctx->coded_frame= (AVFrame*)&s->current_picture; |
|
|
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_index2xy, (s->mb_num+1)*sizeof(int), fail) //error ressilience code looks cleaner with this |
|
for(y=0; y<s->mb_height; y++){ |
|
for(x=0; x<s->mb_width; x++){ |
|
s->mb_index2xy[ x + y*s->mb_width ] = x + y*s->mb_stride; |
|
} |
|
} |
|
s->mb_index2xy[ s->mb_height*s->mb_width ] = (s->mb_height-1)*s->mb_stride + s->mb_width; //FIXME really needed? |
|
|
|
if (s->encoding) { |
|
/* Allocate MV tables */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_forw_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_back_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_forw_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_bidir_back_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_direct_mv_table_base , mv_table_size * 2 * sizeof(int16_t), fail) |
|
s->p_mv_table = s->p_mv_table_base + s->mb_stride + 1; |
|
s->b_forw_mv_table = s->b_forw_mv_table_base + s->mb_stride + 1; |
|
s->b_back_mv_table = s->b_back_mv_table_base + s->mb_stride + 1; |
|
s->b_bidir_forw_mv_table= s->b_bidir_forw_mv_table_base + s->mb_stride + 1; |
|
s->b_bidir_back_mv_table= s->b_bidir_back_mv_table_base + s->mb_stride + 1; |
|
s->b_direct_mv_table = s->b_direct_mv_table_base + s->mb_stride + 1; |
|
|
|
if(s->msmpeg4_version){ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_stats, 2*2*(MAX_LEVEL+1)*(MAX_RUN+1)*2*sizeof(int), fail); |
|
} |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->avctx->stats_out, 256, fail); |
|
|
|
/* Allocate MB type table */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->mb_type , mb_array_size * sizeof(uint16_t), fail) //needed for encoding |
|
|
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->lambda_table, mb_array_size * sizeof(int), fail) |
|
|
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix , 64*32 * sizeof(int), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix , 64*32 * sizeof(int), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_intra_matrix16, 64*32*2 * sizeof(uint16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->q_inter_matrix16, 64*32*2 * sizeof(uint16_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->reordered_input_picture, MAX_PICTURE_COUNT * sizeof(Picture*), fail) |
|
|
|
if(s->avctx->noise_reduction){ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_offset, 2 * 64 * sizeof(uint16_t), fail) |
|
} |
|
} |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->picture, MAX_PICTURE_COUNT * sizeof(Picture), fail) |
|
for(i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
avcodec_get_frame_defaults((AVFrame *)&s->picture[i]); |
|
} |
|
|
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->error_status_table, mb_array_size*sizeof(uint8_t), fail) |
|
|
|
if(s->codec_id==CODEC_ID_MPEG4 || (s->flags & CODEC_FLAG_INTERLACED_ME)){ |
|
/* interlaced direct mode decoding tables */ |
|
for(i=0; i<2; i++){ |
|
int j, k; |
|
for(j=0; j<2; j++){ |
|
for(k=0; k<2; k++){ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_mv_table_base[i][j][k], mv_table_size * 2 * sizeof(int16_t), fail) |
|
s->b_field_mv_table[i][j][k] = s->b_field_mv_table_base[i][j][k] + s->mb_stride + 1; |
|
} |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->b_field_select_table [i][j], mb_array_size * 2 * sizeof(uint8_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_mv_table_base[i][j], mv_table_size * 2 * sizeof(int16_t), fail) |
|
s->p_field_mv_table[i][j] = s->p_field_mv_table_base[i][j]+ s->mb_stride + 1; |
|
} |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->p_field_select_table[i], mb_array_size * 2 * sizeof(uint8_t), fail) |
|
} |
|
} |
|
if (s->out_format == FMT_H263) { |
|
/* ac values */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->ac_val_base, yc_size * sizeof(int16_t) * 16, fail); |
|
s->ac_val[0] = s->ac_val_base + s->b8_stride + 1; |
|
s->ac_val[1] = s->ac_val_base + y_size + s->mb_stride + 1; |
|
s->ac_val[2] = s->ac_val[1] + c_size; |
|
|
|
/* cbp values */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->coded_block_base, y_size, fail); |
|
s->coded_block= s->coded_block_base + s->b8_stride + 1; |
|
|
|
/* cbp, ac_pred, pred_dir */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->cbp_table , mb_array_size * sizeof(uint8_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->pred_dir_table, mb_array_size * sizeof(uint8_t), fail) |
|
} |
|
|
|
if (s->h263_pred || s->h263_plus || !s->encoding) { |
|
/* dc values */ |
|
//MN: we need these for error resilience of intra-frames |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->dc_val_base, yc_size * sizeof(int16_t), fail); |
|
s->dc_val[0] = s->dc_val_base + s->b8_stride + 1; |
|
s->dc_val[1] = s->dc_val_base + y_size + s->mb_stride + 1; |
|
s->dc_val[2] = s->dc_val[1] + c_size; |
|
for(i=0;i<yc_size;i++) |
|
s->dc_val_base[i] = 1024; |
|
} |
|
|
|
/* which mb is a intra block */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbintra_table, mb_array_size, fail); |
|
memset(s->mbintra_table, 1, mb_array_size); |
|
|
|
/* init macroblock skip table */ |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->mbskip_table, mb_array_size+2, fail); |
|
//Note the +1 is for a quicker mpeg4 slice_end detection |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->prev_pict_types, PREV_PICT_TYPES_BUFFER_SIZE, fail); |
|
|
|
s->parse_context.state= -1; |
|
if((s->avctx->debug&(FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)){ |
|
s->visualization_buffer[0] = av_malloc((s->mb_width*16 + 2*EDGE_WIDTH) * s->mb_height*16 + 2*EDGE_WIDTH); |
|
s->visualization_buffer[1] = av_malloc((s->mb_width*16 + 2*EDGE_WIDTH) * s->mb_height*16 + 2*EDGE_WIDTH); |
|
s->visualization_buffer[2] = av_malloc((s->mb_width*16 + 2*EDGE_WIDTH) * s->mb_height*16 + 2*EDGE_WIDTH); |
|
} |
|
|
|
s->context_initialized = 1; |
|
|
|
s->thread_context[0]= s; |
|
threads = s->avctx->thread_count; |
|
|
|
for(i=1; i<threads; i++){ |
|
s->thread_context[i]= av_malloc(sizeof(MpegEncContext)); |
|
memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); |
|
} |
|
|
|
for(i=0; i<threads; i++){ |
|
if(init_duplicate_context(s->thread_context[i], s) < 0) |
|
goto fail; |
|
s->thread_context[i]->start_mb_y= (s->mb_height*(i ) + s->avctx->thread_count/2) / s->avctx->thread_count; |
|
s->thread_context[i]->end_mb_y = (s->mb_height*(i+1) + s->avctx->thread_count/2) / s->avctx->thread_count; |
|
} |
|
|
|
return 0; |
|
fail: |
|
MPV_common_end(s); |
|
return -1; |
|
} |
|
|
|
/* init common structure for both encoder and decoder */ |
|
void MPV_common_end(MpegEncContext *s) |
|
{ |
|
int i, j, k; |
|
|
|
for(i=0; i<s->avctx->thread_count; i++){ |
|
free_duplicate_context(s->thread_context[i]); |
|
} |
|
for(i=1; i<s->avctx->thread_count; i++){ |
|
av_freep(&s->thread_context[i]); |
|
} |
|
|
|
av_freep(&s->parse_context.buffer); |
|
s->parse_context.buffer_size=0; |
|
|
|
av_freep(&s->mb_type); |
|
av_freep(&s->p_mv_table_base); |
|
av_freep(&s->b_forw_mv_table_base); |
|
av_freep(&s->b_back_mv_table_base); |
|
av_freep(&s->b_bidir_forw_mv_table_base); |
|
av_freep(&s->b_bidir_back_mv_table_base); |
|
av_freep(&s->b_direct_mv_table_base); |
|
s->p_mv_table= NULL; |
|
s->b_forw_mv_table= NULL; |
|
s->b_back_mv_table= NULL; |
|
s->b_bidir_forw_mv_table= NULL; |
|
s->b_bidir_back_mv_table= NULL; |
|
s->b_direct_mv_table= NULL; |
|
for(i=0; i<2; i++){ |
|
for(j=0; j<2; j++){ |
|
for(k=0; k<2; k++){ |
|
av_freep(&s->b_field_mv_table_base[i][j][k]); |
|
s->b_field_mv_table[i][j][k]=NULL; |
|
} |
|
av_freep(&s->b_field_select_table[i][j]); |
|
av_freep(&s->p_field_mv_table_base[i][j]); |
|
s->p_field_mv_table[i][j]=NULL; |
|
} |
|
av_freep(&s->p_field_select_table[i]); |
|
} |
|
|
|
av_freep(&s->dc_val_base); |
|
av_freep(&s->ac_val_base); |
|
av_freep(&s->coded_block_base); |
|
av_freep(&s->mbintra_table); |
|
av_freep(&s->cbp_table); |
|
av_freep(&s->pred_dir_table); |
|
|
|
av_freep(&s->mbskip_table); |
|
av_freep(&s->prev_pict_types); |
|
av_freep(&s->bitstream_buffer); |
|
s->allocated_bitstream_buffer_size=0; |
|
|
|
av_freep(&s->avctx->stats_out); |
|
av_freep(&s->ac_stats); |
|
av_freep(&s->error_status_table); |
|
av_freep(&s->mb_index2xy); |
|
av_freep(&s->lambda_table); |
|
av_freep(&s->q_intra_matrix); |
|
av_freep(&s->q_inter_matrix); |
|
av_freep(&s->q_intra_matrix16); |
|
av_freep(&s->q_inter_matrix16); |
|
av_freep(&s->input_picture); |
|
av_freep(&s->reordered_input_picture); |
|
av_freep(&s->dct_offset); |
|
|
|
if(s->picture){ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
free_picture(s, &s->picture[i]); |
|
} |
|
} |
|
av_freep(&s->picture); |
|
s->context_initialized = 0; |
|
s->last_picture_ptr= |
|
s->next_picture_ptr= |
|
s->current_picture_ptr= NULL; |
|
s->linesize= s->uvlinesize= 0; |
|
|
|
for(i=0; i<3; i++) |
|
av_freep(&s->visualization_buffer[i]); |
|
|
|
avcodec_default_free_buffers(s->avctx); |
|
} |
|
|
|
void init_rl(RLTable *rl, uint8_t static_store[2][2*MAX_RUN + MAX_LEVEL + 3]) |
|
{ |
|
int8_t max_level[MAX_RUN+1], max_run[MAX_LEVEL+1]; |
|
uint8_t index_run[MAX_RUN+1]; |
|
int last, run, level, start, end, i; |
|
|
|
/* If table is static, we can quit if rl->max_level[0] is not NULL */ |
|
if(static_store && rl->max_level[0]) |
|
return; |
|
|
|
/* compute max_level[], max_run[] and index_run[] */ |
|
for(last=0;last<2;last++) { |
|
if (last == 0) { |
|
start = 0; |
|
end = rl->last; |
|
} else { |
|
start = rl->last; |
|
end = rl->n; |
|
} |
|
|
|
memset(max_level, 0, MAX_RUN + 1); |
|
memset(max_run, 0, MAX_LEVEL + 1); |
|
memset(index_run, rl->n, MAX_RUN + 1); |
|
for(i=start;i<end;i++) { |
|
run = rl->table_run[i]; |
|
level = rl->table_level[i]; |
|
if (index_run[run] == rl->n) |
|
index_run[run] = i; |
|
if (level > max_level[run]) |
|
max_level[run] = level; |
|
if (run > max_run[level]) |
|
max_run[level] = run; |
|
} |
|
if(static_store) |
|
rl->max_level[last] = static_store[last]; |
|
else |
|
rl->max_level[last] = av_malloc(MAX_RUN + 1); |
|
memcpy(rl->max_level[last], max_level, MAX_RUN + 1); |
|
if(static_store) |
|
rl->max_run[last] = static_store[last] + MAX_RUN + 1; |
|
else |
|
rl->max_run[last] = av_malloc(MAX_LEVEL + 1); |
|
memcpy(rl->max_run[last], max_run, MAX_LEVEL + 1); |
|
if(static_store) |
|
rl->index_run[last] = static_store[last] + MAX_RUN + MAX_LEVEL + 2; |
|
else |
|
rl->index_run[last] = av_malloc(MAX_RUN + 1); |
|
memcpy(rl->index_run[last], index_run, MAX_RUN + 1); |
|
} |
|
} |
|
|
|
void init_vlc_rl(RLTable *rl) |
|
{ |
|
int i, q; |
|
|
|
for(q=0; q<32; q++){ |
|
int qmul= q*2; |
|
int qadd= (q-1)|1; |
|
|
|
if(q==0){ |
|
qmul=1; |
|
qadd=0; |
|
} |
|
for(i=0; i<rl->vlc.table_size; i++){ |
|
int code= rl->vlc.table[i][0]; |
|
int len = rl->vlc.table[i][1]; |
|
int level, run; |
|
|
|
if(len==0){ // illegal code |
|
run= 66; |
|
level= MAX_LEVEL; |
|
}else if(len<0){ //more bits needed |
|
run= 0; |
|
level= code; |
|
}else{ |
|
if(code==rl->n){ //esc |
|
run= 66; |
|
level= 0; |
|
}else{ |
|
run= rl->table_run [code] + 1; |
|
level= rl->table_level[code] * qmul + qadd; |
|
if(code >= rl->last) run+=192; |
|
} |
|
} |
|
rl->rl_vlc[q][i].len= len; |
|
rl->rl_vlc[q][i].level= level; |
|
rl->rl_vlc[q][i].run= run; |
|
} |
|
} |
|
} |
|
|
|
int ff_find_unused_picture(MpegEncContext *s, int shared){ |
|
int i; |
|
|
|
if(shared){ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0]==NULL && s->picture[i].type==0) return i; |
|
} |
|
}else{ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0]==NULL && s->picture[i].type!=0) return i; //FIXME |
|
} |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0]==NULL) return i; |
|
} |
|
} |
|
|
|
av_log(s->avctx, AV_LOG_FATAL, "Internal error, picture buffer overflow\n"); |
|
/* We could return -1, but the codec would crash trying to draw into a |
|
* non-existing frame anyway. This is safer than waiting for a random crash. |
|
* Also the return of this is never useful, an encoder must only allocate |
|
* as much as allowed in the specification. This has no relationship to how |
|
* much libavcodec could allocate (and MAX_PICTURE_COUNT is always large |
|
* enough for such valid streams). |
|
* Plus, a decoder has to check stream validity and remove frames if too |
|
* many reference frames are around. Waiting for "OOM" is not correct at |
|
* all. Similarly, missing reference frames have to be replaced by |
|
* interpolated/MC frames, anything else is a bug in the codec ... |
|
*/ |
|
abort(); |
|
return -1; |
|
} |
|
|
|
static void update_noise_reduction(MpegEncContext *s){ |
|
int intra, i; |
|
|
|
for(intra=0; intra<2; intra++){ |
|
if(s->dct_count[intra] > (1<<16)){ |
|
for(i=0; i<64; i++){ |
|
s->dct_error_sum[intra][i] >>=1; |
|
} |
|
s->dct_count[intra] >>= 1; |
|
} |
|
|
|
for(i=0; i<64; i++){ |
|
s->dct_offset[intra][i]= (s->avctx->noise_reduction * s->dct_count[intra] + s->dct_error_sum[intra][i]/2) / (s->dct_error_sum[intra][i]+1); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* generic function for encode/decode called after coding/decoding the header and before a frame is coded/decoded |
|
*/ |
|
int MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) |
|
{ |
|
int i; |
|
Picture *pic; |
|
s->mb_skipped = 0; |
|
|
|
assert(s->last_picture_ptr==NULL || s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3); |
|
|
|
/* mark&release old frames */ |
|
if (s->pict_type != FF_B_TYPE && s->last_picture_ptr && s->last_picture_ptr != s->next_picture_ptr && s->last_picture_ptr->data[0]) { |
|
if(s->out_format != FMT_H264 || s->codec_id == CODEC_ID_SVQ3){ |
|
free_frame_buffer(s, s->last_picture_ptr); |
|
|
|
/* release forgotten pictures */ |
|
/* if(mpeg124/h263) */ |
|
if(!s->encoding){ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0] && &s->picture[i] != s->next_picture_ptr && s->picture[i].reference){ |
|
av_log(avctx, AV_LOG_ERROR, "releasing zombie picture\n"); |
|
free_frame_buffer(s, &s->picture[i]); |
|
} |
|
} |
|
} |
|
} |
|
} |
|
|
|
if(!s->encoding){ |
|
/* release non reference frames */ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){ |
|
free_frame_buffer(s, &s->picture[i]); |
|
} |
|
} |
|
|
|
if(s->current_picture_ptr && s->current_picture_ptr->data[0]==NULL) |
|
pic= s->current_picture_ptr; //we already have a unused image (maybe it was set before reading the header) |
|
else{ |
|
i= ff_find_unused_picture(s, 0); |
|
pic= &s->picture[i]; |
|
} |
|
|
|
pic->reference= 0; |
|
if (!s->dropable){ |
|
if (s->codec_id == CODEC_ID_H264) |
|
pic->reference = s->picture_structure; |
|
else if (s->pict_type != FF_B_TYPE) |
|
pic->reference = 3; |
|
} |
|
|
|
pic->coded_picture_number= s->coded_picture_number++; |
|
|
|
if(ff_alloc_picture(s, pic, 0) < 0) |
|
return -1; |
|
|
|
s->current_picture_ptr= pic; |
|
s->current_picture_ptr->top_field_first= s->top_field_first; //FIXME use only the vars from current_pic |
|
s->current_picture_ptr->interlaced_frame= !s->progressive_frame && !s->progressive_sequence; |
|
} |
|
|
|
s->current_picture_ptr->pict_type= s->pict_type; |
|
// if(s->flags && CODEC_FLAG_QSCALE) |
|
// s->current_picture_ptr->quality= s->new_picture_ptr->quality; |
|
s->current_picture_ptr->key_frame= s->pict_type == FF_I_TYPE; |
|
|
|
ff_copy_picture(&s->current_picture, s->current_picture_ptr); |
|
|
|
if (s->pict_type != FF_B_TYPE) { |
|
s->last_picture_ptr= s->next_picture_ptr; |
|
if(!s->dropable) |
|
s->next_picture_ptr= s->current_picture_ptr; |
|
} |
|
/* av_log(s->avctx, AV_LOG_DEBUG, "L%p N%p C%p L%p N%p C%p type:%d drop:%d\n", s->last_picture_ptr, s->next_picture_ptr,s->current_picture_ptr, |
|
s->last_picture_ptr ? s->last_picture_ptr->data[0] : NULL, |
|
s->next_picture_ptr ? s->next_picture_ptr->data[0] : NULL, |
|
s->current_picture_ptr ? s->current_picture_ptr->data[0] : NULL, |
|
s->pict_type, s->dropable);*/ |
|
|
|
if(s->codec_id != CODEC_ID_H264){ |
|
if((s->last_picture_ptr==NULL || s->last_picture_ptr->data[0]==NULL) && s->pict_type!=FF_I_TYPE){ |
|
av_log(avctx, AV_LOG_ERROR, "warning: first frame is no keyframe\n"); |
|
/* Allocate a dummy frame */ |
|
i= ff_find_unused_picture(s, 0); |
|
s->last_picture_ptr= &s->picture[i]; |
|
if(ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) |
|
return -1; |
|
} |
|
if((s->next_picture_ptr==NULL || s->next_picture_ptr->data[0]==NULL) && s->pict_type==FF_B_TYPE){ |
|
/* Allocate a dummy frame */ |
|
i= ff_find_unused_picture(s, 0); |
|
s->next_picture_ptr= &s->picture[i]; |
|
if(ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) |
|
return -1; |
|
} |
|
} |
|
|
|
if(s->last_picture_ptr) ff_copy_picture(&s->last_picture, s->last_picture_ptr); |
|
if(s->next_picture_ptr) ff_copy_picture(&s->next_picture, s->next_picture_ptr); |
|
|
|
assert(s->pict_type == FF_I_TYPE || (s->last_picture_ptr && s->last_picture_ptr->data[0])); |
|
|
|
if(s->picture_structure!=PICT_FRAME && s->out_format != FMT_H264){ |
|
int i; |
|
for(i=0; i<4; i++){ |
|
if(s->picture_structure == PICT_BOTTOM_FIELD){ |
|
s->current_picture.data[i] += s->current_picture.linesize[i]; |
|
} |
|
s->current_picture.linesize[i] *= 2; |
|
s->last_picture.linesize[i] *=2; |
|
s->next_picture.linesize[i] *=2; |
|
} |
|
} |
|
|
|
s->hurry_up= s->avctx->hurry_up; |
|
s->error_recognition= avctx->error_recognition; |
|
|
|
/* set dequantizer, we can't do it during init as it might change for mpeg4 |
|
and we can't do it in the header decode as init is not called for mpeg4 there yet */ |
|
if(s->mpeg_quant || s->codec_id == CODEC_ID_MPEG2VIDEO){ |
|
s->dct_unquantize_intra = s->dct_unquantize_mpeg2_intra; |
|
s->dct_unquantize_inter = s->dct_unquantize_mpeg2_inter; |
|
}else if(s->out_format == FMT_H263 || s->out_format == FMT_H261){ |
|
s->dct_unquantize_intra = s->dct_unquantize_h263_intra; |
|
s->dct_unquantize_inter = s->dct_unquantize_h263_inter; |
|
}else{ |
|
s->dct_unquantize_intra = s->dct_unquantize_mpeg1_intra; |
|
s->dct_unquantize_inter = s->dct_unquantize_mpeg1_inter; |
|
} |
|
|
|
if(s->dct_error_sum){ |
|
assert(s->avctx->noise_reduction && s->encoding); |
|
|
|
update_noise_reduction(s); |
|
} |
|
|
|
if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) |
|
return ff_xvmc_field_start(s, avctx); |
|
|
|
return 0; |
|
} |
|
|
|
/* generic function for encode/decode called after a frame has been coded/decoded */ |
|
void MPV_frame_end(MpegEncContext *s) |
|
{ |
|
int i; |
|
/* draw edge for correct motion prediction if outside */ |
|
//just to make sure that all data is rendered. |
|
if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){ |
|
ff_xvmc_field_end(s); |
|
}else if(!s->avctx->hwaccel |
|
&& !(s->avctx->codec->capabilities&CODEC_CAP_HWACCEL_VDPAU) |
|
&& s->unrestricted_mv |
|
&& s->current_picture.reference |
|
&& !s->intra_only |
|
&& !(s->flags&CODEC_FLAG_EMU_EDGE)) { |
|
s->dsp.draw_edges(s->current_picture.data[0], s->linesize , s->h_edge_pos , s->v_edge_pos , EDGE_WIDTH ); |
|
s->dsp.draw_edges(s->current_picture.data[1], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2); |
|
s->dsp.draw_edges(s->current_picture.data[2], s->uvlinesize, s->h_edge_pos>>1, s->v_edge_pos>>1, EDGE_WIDTH/2); |
|
} |
|
emms_c(); |
|
|
|
s->last_pict_type = s->pict_type; |
|
s->last_lambda_for[s->pict_type]= s->current_picture_ptr->quality; |
|
if(s->pict_type!=FF_B_TYPE){ |
|
s->last_non_b_pict_type= s->pict_type; |
|
} |
|
#if 0 |
|
/* copy back current_picture variables */ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0] == s->current_picture.data[0]){ |
|
s->picture[i]= s->current_picture; |
|
break; |
|
} |
|
} |
|
assert(i<MAX_PICTURE_COUNT); |
|
#endif |
|
|
|
if(s->encoding){ |
|
/* release non-reference frames */ |
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0] && !s->picture[i].reference /*&& s->picture[i].type!=FF_BUFFER_TYPE_SHARED*/){ |
|
free_frame_buffer(s, &s->picture[i]); |
|
} |
|
} |
|
} |
|
// clear copies, to avoid confusion |
|
#if 0 |
|
memset(&s->last_picture, 0, sizeof(Picture)); |
|
memset(&s->next_picture, 0, sizeof(Picture)); |
|
memset(&s->current_picture, 0, sizeof(Picture)); |
|
#endif |
|
s->avctx->coded_frame= (AVFrame*)s->current_picture_ptr; |
|
} |
|
|
|
/** |
|
* draws an line from (ex, ey) -> (sx, sy). |
|
* @param w width of the image |
|
* @param h height of the image |
|
* @param stride stride/linesize of the image |
|
* @param color color of the arrow |
|
*/ |
|
static void draw_line(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){ |
|
int x, y, fr, f; |
|
|
|
sx= av_clip(sx, 0, w-1); |
|
sy= av_clip(sy, 0, h-1); |
|
ex= av_clip(ex, 0, w-1); |
|
ey= av_clip(ey, 0, h-1); |
|
|
|
buf[sy*stride + sx]+= color; |
|
|
|
if(FFABS(ex - sx) > FFABS(ey - sy)){ |
|
if(sx > ex){ |
|
FFSWAP(int, sx, ex); |
|
FFSWAP(int, sy, ey); |
|
} |
|
buf+= sx + sy*stride; |
|
ex-= sx; |
|
f= ((ey-sy)<<16)/ex; |
|
for(x= 0; x <= ex; x++){ |
|
y = (x*f)>>16; |
|
fr= (x*f)&0xFFFF; |
|
buf[ y *stride + x]+= (color*(0x10000-fr))>>16; |
|
buf[(y+1)*stride + x]+= (color* fr )>>16; |
|
} |
|
}else{ |
|
if(sy > ey){ |
|
FFSWAP(int, sx, ex); |
|
FFSWAP(int, sy, ey); |
|
} |
|
buf+= sx + sy*stride; |
|
ey-= sy; |
|
if(ey) f= ((ex-sx)<<16)/ey; |
|
else f= 0; |
|
for(y= 0; y <= ey; y++){ |
|
x = (y*f)>>16; |
|
fr= (y*f)&0xFFFF; |
|
buf[y*stride + x ]+= (color*(0x10000-fr))>>16; |
|
buf[y*stride + x+1]+= (color* fr )>>16; |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* draws an arrow from (ex, ey) -> (sx, sy). |
|
* @param w width of the image |
|
* @param h height of the image |
|
* @param stride stride/linesize of the image |
|
* @param color color of the arrow |
|
*/ |
|
static void draw_arrow(uint8_t *buf, int sx, int sy, int ex, int ey, int w, int h, int stride, int color){ |
|
int dx,dy; |
|
|
|
sx= av_clip(sx, -100, w+100); |
|
sy= av_clip(sy, -100, h+100); |
|
ex= av_clip(ex, -100, w+100); |
|
ey= av_clip(ey, -100, h+100); |
|
|
|
dx= ex - sx; |
|
dy= ey - sy; |
|
|
|
if(dx*dx + dy*dy > 3*3){ |
|
int rx= dx + dy; |
|
int ry= -dx + dy; |
|
int length= ff_sqrt((rx*rx + ry*ry)<<8); |
|
|
|
//FIXME subpixel accuracy |
|
rx= ROUNDED_DIV(rx*3<<4, length); |
|
ry= ROUNDED_DIV(ry*3<<4, length); |
|
|
|
draw_line(buf, sx, sy, sx + rx, sy + ry, w, h, stride, color); |
|
draw_line(buf, sx, sy, sx - ry, sy + rx, w, h, stride, color); |
|
} |
|
draw_line(buf, sx, sy, ex, ey, w, h, stride, color); |
|
} |
|
|
|
/** |
|
* prints debuging info for the given picture. |
|
*/ |
|
void ff_print_debug_info(MpegEncContext *s, AVFrame *pict){ |
|
|
|
if(s->avctx->hwaccel || !pict || !pict->mb_type) return; |
|
|
|
if(s->avctx->debug&(FF_DEBUG_SKIP | FF_DEBUG_QP | FF_DEBUG_MB_TYPE)){ |
|
int x,y; |
|
|
|
av_log(s->avctx,AV_LOG_DEBUG,"New frame, type: "); |
|
switch (pict->pict_type) { |
|
case FF_I_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"I\n"); break; |
|
case FF_P_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"P\n"); break; |
|
case FF_B_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"B\n"); break; |
|
case FF_S_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"S\n"); break; |
|
case FF_SI_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"SI\n"); break; |
|
case FF_SP_TYPE: av_log(s->avctx,AV_LOG_DEBUG,"SP\n"); break; |
|
} |
|
for(y=0; y<s->mb_height; y++){ |
|
for(x=0; x<s->mb_width; x++){ |
|
if(s->avctx->debug&FF_DEBUG_SKIP){ |
|
int count= s->mbskip_table[x + y*s->mb_stride]; |
|
if(count>9) count=9; |
|
av_log(s->avctx, AV_LOG_DEBUG, "%1d", count); |
|
} |
|
if(s->avctx->debug&FF_DEBUG_QP){ |
|
av_log(s->avctx, AV_LOG_DEBUG, "%2d", pict->qscale_table[x + y*s->mb_stride]); |
|
} |
|
if(s->avctx->debug&FF_DEBUG_MB_TYPE){ |
|
int mb_type= pict->mb_type[x + y*s->mb_stride]; |
|
//Type & MV direction |
|
if(IS_PCM(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "P"); |
|
else if(IS_INTRA(mb_type) && IS_ACPRED(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "A"); |
|
else if(IS_INTRA4x4(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "i"); |
|
else if(IS_INTRA16x16(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "I"); |
|
else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "d"); |
|
else if(IS_DIRECT(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "D"); |
|
else if(IS_GMC(mb_type) && IS_SKIP(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "g"); |
|
else if(IS_GMC(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "G"); |
|
else if(IS_SKIP(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "S"); |
|
else if(!USES_LIST(mb_type, 1)) |
|
av_log(s->avctx, AV_LOG_DEBUG, ">"); |
|
else if(!USES_LIST(mb_type, 0)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "<"); |
|
else{ |
|
assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); |
|
av_log(s->avctx, AV_LOG_DEBUG, "X"); |
|
} |
|
|
|
//segmentation |
|
if(IS_8X8(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "+"); |
|
else if(IS_16X8(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "-"); |
|
else if(IS_8X16(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "|"); |
|
else if(IS_INTRA(mb_type) || IS_16X16(mb_type)) |
|
av_log(s->avctx, AV_LOG_DEBUG, " "); |
|
else |
|
av_log(s->avctx, AV_LOG_DEBUG, "?"); |
|
|
|
|
|
if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264) |
|
av_log(s->avctx, AV_LOG_DEBUG, "="); |
|
else |
|
av_log(s->avctx, AV_LOG_DEBUG, " "); |
|
} |
|
// av_log(s->avctx, AV_LOG_DEBUG, " "); |
|
} |
|
av_log(s->avctx, AV_LOG_DEBUG, "\n"); |
|
} |
|
} |
|
|
|
if((s->avctx->debug&(FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) || (s->avctx->debug_mv)){ |
|
const int shift= 1 + s->quarter_sample; |
|
int mb_y; |
|
uint8_t *ptr; |
|
int i; |
|
int h_chroma_shift, v_chroma_shift, block_height; |
|
const int width = s->avctx->width; |
|
const int height= s->avctx->height; |
|
const int mv_sample_log2= 4 - pict->motion_subsample_log2; |
|
const int mv_stride= (s->mb_width << mv_sample_log2) + (s->codec_id == CODEC_ID_H264 ? 0 : 1); |
|
s->low_delay=0; //needed to see the vectors without trashing the buffers |
|
|
|
avcodec_get_chroma_sub_sample(s->avctx->pix_fmt, &h_chroma_shift, &v_chroma_shift); |
|
for(i=0; i<3; i++){ |
|
memcpy(s->visualization_buffer[i], pict->data[i], (i==0) ? pict->linesize[i]*height:pict->linesize[i]*height >> v_chroma_shift); |
|
pict->data[i]= s->visualization_buffer[i]; |
|
} |
|
pict->type= FF_BUFFER_TYPE_COPY; |
|
ptr= pict->data[0]; |
|
block_height = 16>>v_chroma_shift; |
|
|
|
for(mb_y=0; mb_y<s->mb_height; mb_y++){ |
|
int mb_x; |
|
for(mb_x=0; mb_x<s->mb_width; mb_x++){ |
|
const int mb_index= mb_x + mb_y*s->mb_stride; |
|
if((s->avctx->debug_mv) && pict->motion_val){ |
|
int type; |
|
for(type=0; type<3; type++){ |
|
int direction = 0; |
|
switch (type) { |
|
case 0: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_P_FOR)) || (pict->pict_type!=FF_P_TYPE)) |
|
continue; |
|
direction = 0; |
|
break; |
|
case 1: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_B_FOR)) || (pict->pict_type!=FF_B_TYPE)) |
|
continue; |
|
direction = 0; |
|
break; |
|
case 2: if ((!(s->avctx->debug_mv&FF_DEBUG_VIS_MV_B_BACK)) || (pict->pict_type!=FF_B_TYPE)) |
|
continue; |
|
direction = 1; |
|
break; |
|
} |
|
if(!USES_LIST(pict->mb_type[mb_index], direction)) |
|
continue; |
|
|
|
if(IS_8X8(pict->mb_type[mb_index])){ |
|
int i; |
|
for(i=0; i<4; i++){ |
|
int sx= mb_x*16 + 4 + 8*(i&1); |
|
int sy= mb_y*16 + 4 + 8*(i>>1); |
|
int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << (mv_sample_log2-1); |
|
int mx= (pict->motion_val[direction][xy][0]>>shift) + sx; |
|
int my= (pict->motion_val[direction][xy][1]>>shift) + sy; |
|
draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100); |
|
} |
|
}else if(IS_16X8(pict->mb_type[mb_index])){ |
|
int i; |
|
for(i=0; i<2; i++){ |
|
int sx=mb_x*16 + 8; |
|
int sy=mb_y*16 + 4 + 8*i; |
|
int xy= (mb_x*2 + (mb_y*2 + i)*mv_stride) << (mv_sample_log2-1); |
|
int mx=(pict->motion_val[direction][xy][0]>>shift); |
|
int my=(pict->motion_val[direction][xy][1]>>shift); |
|
|
|
if(IS_INTERLACED(pict->mb_type[mb_index])) |
|
my*=2; |
|
|
|
draw_arrow(ptr, sx, sy, mx+sx, my+sy, width, height, s->linesize, 100); |
|
} |
|
}else if(IS_8X16(pict->mb_type[mb_index])){ |
|
int i; |
|
for(i=0; i<2; i++){ |
|
int sx=mb_x*16 + 4 + 8*i; |
|
int sy=mb_y*16 + 8; |
|
int xy= (mb_x*2 + i + mb_y*2*mv_stride) << (mv_sample_log2-1); |
|
int mx=(pict->motion_val[direction][xy][0]>>shift); |
|
int my=(pict->motion_val[direction][xy][1]>>shift); |
|
|
|
if(IS_INTERLACED(pict->mb_type[mb_index])) |
|
my*=2; |
|
|
|
draw_arrow(ptr, sx, sy, mx+sx, my+sy, width, height, s->linesize, 100); |
|
} |
|
}else{ |
|
int sx= mb_x*16 + 8; |
|
int sy= mb_y*16 + 8; |
|
int xy= (mb_x + mb_y*mv_stride) << mv_sample_log2; |
|
int mx= (pict->motion_val[direction][xy][0]>>shift) + sx; |
|
int my= (pict->motion_val[direction][xy][1]>>shift) + sy; |
|
draw_arrow(ptr, sx, sy, mx, my, width, height, s->linesize, 100); |
|
} |
|
} |
|
} |
|
if((s->avctx->debug&FF_DEBUG_VIS_QP) && pict->motion_val){ |
|
uint64_t c= (pict->qscale_table[mb_index]*128/31) * 0x0101010101010101ULL; |
|
int y; |
|
for(y=0; y<block_height; y++){ |
|
*(uint64_t*)(pict->data[1] + 8*mb_x + (block_height*mb_y + y)*pict->linesize[1])= c; |
|
*(uint64_t*)(pict->data[2] + 8*mb_x + (block_height*mb_y + y)*pict->linesize[2])= c; |
|
} |
|
} |
|
if((s->avctx->debug&FF_DEBUG_VIS_MB_TYPE) && pict->motion_val){ |
|
int mb_type= pict->mb_type[mb_index]; |
|
uint64_t u,v; |
|
int y; |
|
#define COLOR(theta, r)\ |
|
u= (int)(128 + r*cos(theta*3.141592/180));\ |
|
v= (int)(128 + r*sin(theta*3.141592/180)); |
|
|
|
|
|
u=v=128; |
|
if(IS_PCM(mb_type)){ |
|
COLOR(120,48) |
|
}else if((IS_INTRA(mb_type) && IS_ACPRED(mb_type)) || IS_INTRA16x16(mb_type)){ |
|
COLOR(30,48) |
|
}else if(IS_INTRA4x4(mb_type)){ |
|
COLOR(90,48) |
|
}else if(IS_DIRECT(mb_type) && IS_SKIP(mb_type)){ |
|
// COLOR(120,48) |
|
}else if(IS_DIRECT(mb_type)){ |
|
COLOR(150,48) |
|
}else if(IS_GMC(mb_type) && IS_SKIP(mb_type)){ |
|
COLOR(170,48) |
|
}else if(IS_GMC(mb_type)){ |
|
COLOR(190,48) |
|
}else if(IS_SKIP(mb_type)){ |
|
// COLOR(180,48) |
|
}else if(!USES_LIST(mb_type, 1)){ |
|
COLOR(240,48) |
|
}else if(!USES_LIST(mb_type, 0)){ |
|
COLOR(0,48) |
|
}else{ |
|
assert(USES_LIST(mb_type, 0) && USES_LIST(mb_type, 1)); |
|
COLOR(300,48) |
|
} |
|
|
|
u*= 0x0101010101010101ULL; |
|
v*= 0x0101010101010101ULL; |
|
for(y=0; y<block_height; y++){ |
|
*(uint64_t*)(pict->data[1] + 8*mb_x + (block_height*mb_y + y)*pict->linesize[1])= u; |
|
*(uint64_t*)(pict->data[2] + 8*mb_x + (block_height*mb_y + y)*pict->linesize[2])= v; |
|
} |
|
|
|
//segmentation |
|
if(IS_8X8(mb_type) || IS_16X8(mb_type)){ |
|
*(uint64_t*)(pict->data[0] + 16*mb_x + 0 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL; |
|
*(uint64_t*)(pict->data[0] + 16*mb_x + 8 + (16*mb_y + 8)*pict->linesize[0])^= 0x8080808080808080ULL; |
|
} |
|
if(IS_8X8(mb_type) || IS_8X16(mb_type)){ |
|
for(y=0; y<16; y++) |
|
pict->data[0][16*mb_x + 8 + (16*mb_y + y)*pict->linesize[0]]^= 0x80; |
|
} |
|
if(IS_8X8(mb_type) && mv_sample_log2 >= 2){ |
|
int dm= 1 << (mv_sample_log2-2); |
|
for(i=0; i<4; i++){ |
|
int sx= mb_x*16 + 8*(i&1); |
|
int sy= mb_y*16 + 8*(i>>1); |
|
int xy= (mb_x*2 + (i&1) + (mb_y*2 + (i>>1))*mv_stride) << (mv_sample_log2-1); |
|
//FIXME bidir |
|
int32_t *mv = (int32_t*)&pict->motion_val[0][xy]; |
|
if(mv[0] != mv[dm] || mv[dm*mv_stride] != mv[dm*(mv_stride+1)]) |
|
for(y=0; y<8; y++) |
|
pict->data[0][sx + 4 + (sy + y)*pict->linesize[0]]^= 0x80; |
|
if(mv[0] != mv[dm*mv_stride] || mv[dm] != mv[dm*(mv_stride+1)]) |
|
*(uint64_t*)(pict->data[0] + sx + (sy + 4)*pict->linesize[0])^= 0x8080808080808080ULL; |
|
} |
|
} |
|
|
|
if(IS_INTERLACED(mb_type) && s->codec_id == CODEC_ID_H264){ |
|
// hmm |
|
} |
|
} |
|
s->mbskip_table[mb_index]=0; |
|
} |
|
} |
|
} |
|
} |
|
|
|
static inline int hpel_motion_lowres(MpegEncContext *s, |
|
uint8_t *dest, uint8_t *src, |
|
int field_based, int field_select, |
|
int src_x, int src_y, |
|
int width, int height, int stride, |
|
int h_edge_pos, int v_edge_pos, |
|
int w, int h, h264_chroma_mc_func *pix_op, |
|
int motion_x, int motion_y) |
|
{ |
|
const int lowres= s->avctx->lowres; |
|
const int op_index= FFMIN(lowres, 2); |
|
const int s_mask= (2<<lowres)-1; |
|
int emu=0; |
|
int sx, sy; |
|
|
|
if(s->quarter_sample){ |
|
motion_x/=2; |
|
motion_y/=2; |
|
} |
|
|
|
sx= motion_x & s_mask; |
|
sy= motion_y & s_mask; |
|
src_x += motion_x >> (lowres+1); |
|
src_y += motion_y >> (lowres+1); |
|
|
|
src += src_y * stride + src_x; |
|
|
|
if( (unsigned)src_x > h_edge_pos - (!!sx) - w |
|
|| (unsigned)src_y >(v_edge_pos >> field_based) - (!!sy) - h){ |
|
ff_emulated_edge_mc(s->edge_emu_buffer, src, s->linesize, w+1, (h+1)<<field_based, |
|
src_x, src_y<<field_based, h_edge_pos, v_edge_pos); |
|
src= s->edge_emu_buffer; |
|
emu=1; |
|
} |
|
|
|
sx= (sx << 2) >> lowres; |
|
sy= (sy << 2) >> lowres; |
|
if(field_select) |
|
src += s->linesize; |
|
pix_op[op_index](dest, src, stride, h, sx, sy); |
|
return emu; |
|
} |
|
|
|
/* apply one mpeg motion vector to the three components */ |
|
static av_always_inline void mpeg_motion_lowres(MpegEncContext *s, |
|
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
|
int field_based, int bottom_field, int field_select, |
|
uint8_t **ref_picture, h264_chroma_mc_func *pix_op, |
|
int motion_x, int motion_y, int h, int mb_y) |
|
{ |
|
uint8_t *ptr_y, *ptr_cb, *ptr_cr; |
|
int mx, my, src_x, src_y, uvsrc_x, uvsrc_y, uvlinesize, linesize, sx, sy, uvsx, uvsy; |
|
const int lowres= s->avctx->lowres; |
|
const int op_index= FFMIN(lowres, 2); |
|
const int block_s= 8>>lowres; |
|
const int s_mask= (2<<lowres)-1; |
|
const int h_edge_pos = s->h_edge_pos >> lowres; |
|
const int v_edge_pos = s->v_edge_pos >> lowres; |
|
linesize = s->current_picture.linesize[0] << field_based; |
|
uvlinesize = s->current_picture.linesize[1] << field_based; |
|
|
|
if(s->quarter_sample){ //FIXME obviously not perfect but qpel will not work in lowres anyway |
|
motion_x/=2; |
|
motion_y/=2; |
|
} |
|
|
|
if(field_based){ |
|
motion_y += (bottom_field - field_select)*((1<<lowres)-1); |
|
} |
|
|
|
sx= motion_x & s_mask; |
|
sy= motion_y & s_mask; |
|
src_x = s->mb_x*2*block_s + (motion_x >> (lowres+1)); |
|
src_y =( mb_y*2*block_s>>field_based) + (motion_y >> (lowres+1)); |
|
|
|
if (s->out_format == FMT_H263) { |
|
uvsx = ((motion_x>>1) & s_mask) | (sx&1); |
|
uvsy = ((motion_y>>1) & s_mask) | (sy&1); |
|
uvsrc_x = src_x>>1; |
|
uvsrc_y = src_y>>1; |
|
}else if(s->out_format == FMT_H261){//even chroma mv's are full pel in H261 |
|
mx = motion_x / 4; |
|
my = motion_y / 4; |
|
uvsx = (2*mx) & s_mask; |
|
uvsy = (2*my) & s_mask; |
|
uvsrc_x = s->mb_x*block_s + (mx >> lowres); |
|
uvsrc_y = mb_y*block_s + (my >> lowres); |
|
} else { |
|
mx = motion_x / 2; |
|
my = motion_y / 2; |
|
uvsx = mx & s_mask; |
|
uvsy = my & s_mask; |
|
uvsrc_x = s->mb_x*block_s + (mx >> (lowres+1)); |
|
uvsrc_y =( mb_y*block_s>>field_based) + (my >> (lowres+1)); |
|
} |
|
|
|
ptr_y = ref_picture[0] + src_y * linesize + src_x; |
|
ptr_cb = ref_picture[1] + uvsrc_y * uvlinesize + uvsrc_x; |
|
ptr_cr = ref_picture[2] + uvsrc_y * uvlinesize + uvsrc_x; |
|
|
|
if( (unsigned)src_x > h_edge_pos - (!!sx) - 2*block_s |
|
|| (unsigned)src_y >(v_edge_pos >> field_based) - (!!sy) - h){ |
|
ff_emulated_edge_mc(s->edge_emu_buffer, ptr_y, s->linesize, 17, 17+field_based, |
|
src_x, src_y<<field_based, h_edge_pos, v_edge_pos); |
|
ptr_y = s->edge_emu_buffer; |
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
uint8_t *uvbuf= s->edge_emu_buffer+18*s->linesize; |
|
ff_emulated_edge_mc(uvbuf , ptr_cb, s->uvlinesize, 9, 9+field_based, |
|
uvsrc_x, uvsrc_y<<field_based, h_edge_pos>>1, v_edge_pos>>1); |
|
ff_emulated_edge_mc(uvbuf+16, ptr_cr, s->uvlinesize, 9, 9+field_based, |
|
uvsrc_x, uvsrc_y<<field_based, h_edge_pos>>1, v_edge_pos>>1); |
|
ptr_cb= uvbuf; |
|
ptr_cr= uvbuf+16; |
|
} |
|
} |
|
|
|
if(bottom_field){ //FIXME use this for field pix too instead of the obnoxious hack which changes picture.data |
|
dest_y += s->linesize; |
|
dest_cb+= s->uvlinesize; |
|
dest_cr+= s->uvlinesize; |
|
} |
|
|
|
if(field_select){ |
|
ptr_y += s->linesize; |
|
ptr_cb+= s->uvlinesize; |
|
ptr_cr+= s->uvlinesize; |
|
} |
|
|
|
sx= (sx << 2) >> lowres; |
|
sy= (sy << 2) >> lowres; |
|
pix_op[lowres-1](dest_y, ptr_y, linesize, h, sx, sy); |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
uvsx= (uvsx << 2) >> lowres; |
|
uvsy= (uvsy << 2) >> lowres; |
|
pix_op[op_index](dest_cb, ptr_cb, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); |
|
pix_op[op_index](dest_cr, ptr_cr, uvlinesize, h >> s->chroma_y_shift, uvsx, uvsy); |
|
} |
|
//FIXME h261 lowres loop filter |
|
} |
|
|
|
static inline void chroma_4mv_motion_lowres(MpegEncContext *s, |
|
uint8_t *dest_cb, uint8_t *dest_cr, |
|
uint8_t **ref_picture, |
|
h264_chroma_mc_func *pix_op, |
|
int mx, int my){ |
|
const int lowres= s->avctx->lowres; |
|
const int op_index= FFMIN(lowres, 2); |
|
const int block_s= 8>>lowres; |
|
const int s_mask= (2<<lowres)-1; |
|
const int h_edge_pos = s->h_edge_pos >> (lowres+1); |
|
const int v_edge_pos = s->v_edge_pos >> (lowres+1); |
|
int emu=0, src_x, src_y, offset, sx, sy; |
|
uint8_t *ptr; |
|
|
|
if(s->quarter_sample){ |
|
mx/=2; |
|
my/=2; |
|
} |
|
|
|
/* In case of 8X8, we construct a single chroma motion vector |
|
with a special rounding */ |
|
mx= ff_h263_round_chroma(mx); |
|
my= ff_h263_round_chroma(my); |
|
|
|
sx= mx & s_mask; |
|
sy= my & s_mask; |
|
src_x = s->mb_x*block_s + (mx >> (lowres+1)); |
|
src_y = s->mb_y*block_s + (my >> (lowres+1)); |
|
|
|
offset = src_y * s->uvlinesize + src_x; |
|
ptr = ref_picture[1] + offset; |
|
if(s->flags&CODEC_FLAG_EMU_EDGE){ |
|
if( (unsigned)src_x > h_edge_pos - (!!sx) - block_s |
|
|| (unsigned)src_y > v_edge_pos - (!!sy) - block_s){ |
|
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); |
|
ptr= s->edge_emu_buffer; |
|
emu=1; |
|
} |
|
} |
|
sx= (sx << 2) >> lowres; |
|
sy= (sy << 2) >> lowres; |
|
pix_op[op_index](dest_cb, ptr, s->uvlinesize, block_s, sx, sy); |
|
|
|
ptr = ref_picture[2] + offset; |
|
if(emu){ |
|
ff_emulated_edge_mc(s->edge_emu_buffer, ptr, s->uvlinesize, 9, 9, src_x, src_y, h_edge_pos, v_edge_pos); |
|
ptr= s->edge_emu_buffer; |
|
} |
|
pix_op[op_index](dest_cr, ptr, s->uvlinesize, block_s, sx, sy); |
|
} |
|
|
|
/** |
|
* motion compensation of a single macroblock |
|
* @param s context |
|
* @param dest_y luma destination pointer |
|
* @param dest_cb chroma cb/u destination pointer |
|
* @param dest_cr chroma cr/v destination pointer |
|
* @param dir direction (0->forward, 1->backward) |
|
* @param ref_picture array[3] of pointers to the 3 planes of the reference picture |
|
* @param pic_op halfpel motion compensation function (average or put normally) |
|
* the motion vectors are taken from s->mv and the MV type from s->mv_type |
|
*/ |
|
static inline void MPV_motion_lowres(MpegEncContext *s, |
|
uint8_t *dest_y, uint8_t *dest_cb, uint8_t *dest_cr, |
|
int dir, uint8_t **ref_picture, |
|
h264_chroma_mc_func *pix_op) |
|
{ |
|
int mx, my; |
|
int mb_x, mb_y, i; |
|
const int lowres= s->avctx->lowres; |
|
const int block_s= 8>>lowres; |
|
|
|
mb_x = s->mb_x; |
|
mb_y = s->mb_y; |
|
|
|
switch(s->mv_type) { |
|
case MV_TYPE_16X16: |
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
0, 0, 0, |
|
ref_picture, pix_op, |
|
s->mv[dir][0][0], s->mv[dir][0][1], 2*block_s, mb_y); |
|
break; |
|
case MV_TYPE_8X8: |
|
mx = 0; |
|
my = 0; |
|
for(i=0;i<4;i++) { |
|
hpel_motion_lowres(s, dest_y + ((i & 1) + (i >> 1) * s->linesize)*block_s, |
|
ref_picture[0], 0, 0, |
|
(2*mb_x + (i & 1))*block_s, (2*mb_y + (i >>1))*block_s, |
|
s->width, s->height, s->linesize, |
|
s->h_edge_pos >> lowres, s->v_edge_pos >> lowres, |
|
block_s, block_s, pix_op, |
|
s->mv[dir][i][0], s->mv[dir][i][1]); |
|
|
|
mx += s->mv[dir][i][0]; |
|
my += s->mv[dir][i][1]; |
|
} |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)) |
|
chroma_4mv_motion_lowres(s, dest_cb, dest_cr, ref_picture, pix_op, mx, my); |
|
break; |
|
case MV_TYPE_FIELD: |
|
if (s->picture_structure == PICT_FRAME) { |
|
/* top field */ |
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
1, 0, s->field_select[dir][0], |
|
ref_picture, pix_op, |
|
s->mv[dir][0][0], s->mv[dir][0][1], block_s, mb_y); |
|
/* bottom field */ |
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
1, 1, s->field_select[dir][1], |
|
ref_picture, pix_op, |
|
s->mv[dir][1][0], s->mv[dir][1][1], block_s, mb_y); |
|
} else { |
|
if(s->picture_structure != s->field_select[dir][0] + 1 && s->pict_type != FF_B_TYPE && !s->first_field){ |
|
ref_picture= s->current_picture_ptr->data; |
|
} |
|
|
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
0, 0, s->field_select[dir][0], |
|
ref_picture, pix_op, |
|
s->mv[dir][0][0], s->mv[dir][0][1], 2*block_s, mb_y>>1); |
|
} |
|
break; |
|
case MV_TYPE_16X8: |
|
for(i=0; i<2; i++){ |
|
uint8_t ** ref2picture; |
|
|
|
if(s->picture_structure == s->field_select[dir][i] + 1 || s->pict_type == FF_B_TYPE || s->first_field){ |
|
ref2picture= ref_picture; |
|
}else{ |
|
ref2picture= s->current_picture_ptr->data; |
|
} |
|
|
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
0, 0, s->field_select[dir][i], |
|
ref2picture, pix_op, |
|
s->mv[dir][i][0], s->mv[dir][i][1] + 2*block_s*i, block_s, mb_y>>1); |
|
|
|
dest_y += 2*block_s*s->linesize; |
|
dest_cb+= (2*block_s>>s->chroma_y_shift)*s->uvlinesize; |
|
dest_cr+= (2*block_s>>s->chroma_y_shift)*s->uvlinesize; |
|
} |
|
break; |
|
case MV_TYPE_DMV: |
|
if(s->picture_structure == PICT_FRAME){ |
|
for(i=0; i<2; i++){ |
|
int j; |
|
for(j=0; j<2; j++){ |
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
1, j, j^i, |
|
ref_picture, pix_op, |
|
s->mv[dir][2*i + j][0], s->mv[dir][2*i + j][1], block_s, mb_y); |
|
} |
|
pix_op = s->dsp.avg_h264_chroma_pixels_tab; |
|
} |
|
}else{ |
|
for(i=0; i<2; i++){ |
|
mpeg_motion_lowres(s, dest_y, dest_cb, dest_cr, |
|
0, 0, s->picture_structure != i+1, |
|
ref_picture, pix_op, |
|
s->mv[dir][2*i][0],s->mv[dir][2*i][1],2*block_s, mb_y>>1); |
|
|
|
// after put we make avg of the same block |
|
pix_op = s->dsp.avg_h264_chroma_pixels_tab; |
|
|
|
//opposite parity is always in the same frame if this is second field |
|
if(!s->first_field){ |
|
ref_picture = s->current_picture_ptr->data; |
|
} |
|
} |
|
} |
|
break; |
|
default: assert(0); |
|
} |
|
} |
|
|
|
/* put block[] to dest[] */ |
|
static inline void put_dct(MpegEncContext *s, |
|
DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) |
|
{ |
|
s->dct_unquantize_intra(s, block, i, qscale); |
|
s->dsp.idct_put (dest, line_size, block); |
|
} |
|
|
|
/* add block[] to dest[] */ |
|
static inline void add_dct(MpegEncContext *s, |
|
DCTELEM *block, int i, uint8_t *dest, int line_size) |
|
{ |
|
if (s->block_last_index[i] >= 0) { |
|
s->dsp.idct_add (dest, line_size, block); |
|
} |
|
} |
|
|
|
static inline void add_dequant_dct(MpegEncContext *s, |
|
DCTELEM *block, int i, uint8_t *dest, int line_size, int qscale) |
|
{ |
|
if (s->block_last_index[i] >= 0) { |
|
s->dct_unquantize_inter(s, block, i, qscale); |
|
|
|
s->dsp.idct_add (dest, line_size, block); |
|
} |
|
} |
|
|
|
/** |
|
* cleans dc, ac, coded_block for the current non intra MB |
|
*/ |
|
void ff_clean_intra_table_entries(MpegEncContext *s) |
|
{ |
|
int wrap = s->b8_stride; |
|
int xy = s->block_index[0]; |
|
|
|
s->dc_val[0][xy ] = |
|
s->dc_val[0][xy + 1 ] = |
|
s->dc_val[0][xy + wrap] = |
|
s->dc_val[0][xy + 1 + wrap] = 1024; |
|
/* ac pred */ |
|
memset(s->ac_val[0][xy ], 0, 32 * sizeof(int16_t)); |
|
memset(s->ac_val[0][xy + wrap], 0, 32 * sizeof(int16_t)); |
|
if (s->msmpeg4_version>=3) { |
|
s->coded_block[xy ] = |
|
s->coded_block[xy + 1 ] = |
|
s->coded_block[xy + wrap] = |
|
s->coded_block[xy + 1 + wrap] = 0; |
|
} |
|
/* chroma */ |
|
wrap = s->mb_stride; |
|
xy = s->mb_x + s->mb_y * wrap; |
|
s->dc_val[1][xy] = |
|
s->dc_val[2][xy] = 1024; |
|
/* ac pred */ |
|
memset(s->ac_val[1][xy], 0, 16 * sizeof(int16_t)); |
|
memset(s->ac_val[2][xy], 0, 16 * sizeof(int16_t)); |
|
|
|
s->mbintra_table[xy]= 0; |
|
} |
|
|
|
/* generic function called after a macroblock has been parsed by the |
|
decoder or after it has been encoded by the encoder. |
|
|
|
Important variables used: |
|
s->mb_intra : true if intra macroblock |
|
s->mv_dir : motion vector direction |
|
s->mv_type : motion vector type |
|
s->mv : motion vector |
|
s->interlaced_dct : true if interlaced dct used (mpeg2) |
|
*/ |
|
static av_always_inline |
|
void MPV_decode_mb_internal(MpegEncContext *s, DCTELEM block[12][64], |
|
int lowres_flag, int is_mpeg12) |
|
{ |
|
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; |
|
if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){ |
|
ff_xvmc_decode_mb(s);//xvmc uses pblocks |
|
return; |
|
} |
|
|
|
if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { |
|
/* save DCT coefficients */ |
|
int i,j; |
|
DCTELEM *dct = &s->current_picture.dct_coeff[mb_xy*64*6]; |
|
for(i=0; i<6; i++) |
|
for(j=0; j<64; j++) |
|
*dct++ = block[i][s->dsp.idct_permutation[j]]; |
|
} |
|
|
|
s->current_picture.qscale_table[mb_xy]= s->qscale; |
|
|
|
/* update DC predictors for P macroblocks */ |
|
if (!s->mb_intra) { |
|
if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) { |
|
if(s->mbintra_table[mb_xy]) |
|
ff_clean_intra_table_entries(s); |
|
} else { |
|
s->last_dc[0] = |
|
s->last_dc[1] = |
|
s->last_dc[2] = 128 << s->intra_dc_precision; |
|
} |
|
} |
|
else if (!is_mpeg12 && (s->h263_pred || s->h263_aic)) |
|
s->mbintra_table[mb_xy]=1; |
|
|
|
if ((s->flags&CODEC_FLAG_PSNR) || !(s->encoding && (s->intra_only || s->pict_type==FF_B_TYPE) && s->avctx->mb_decision != FF_MB_DECISION_RD)) { //FIXME precalc |
|
uint8_t *dest_y, *dest_cb, *dest_cr; |
|
int dct_linesize, dct_offset; |
|
op_pixels_func (*op_pix)[4]; |
|
qpel_mc_func (*op_qpix)[16]; |
|
const int linesize= s->current_picture.linesize[0]; //not s->linesize as this would be wrong for field pics |
|
const int uvlinesize= s->current_picture.linesize[1]; |
|
const int readable= s->pict_type != FF_B_TYPE || s->encoding || s->avctx->draw_horiz_band || lowres_flag; |
|
const int block_size= lowres_flag ? 8>>s->avctx->lowres : 8; |
|
|
|
/* avoid copy if macroblock skipped in last frame too */ |
|
/* skip only during decoding as we might trash the buffers during encoding a bit */ |
|
if(!s->encoding){ |
|
uint8_t *mbskip_ptr = &s->mbskip_table[mb_xy]; |
|
const int age= s->current_picture.age; |
|
|
|
assert(age); |
|
|
|
if (s->mb_skipped) { |
|
s->mb_skipped= 0; |
|
assert(s->pict_type!=FF_I_TYPE); |
|
|
|
(*mbskip_ptr) ++; /* indicate that this time we skipped it */ |
|
if(*mbskip_ptr >99) *mbskip_ptr= 99; |
|
|
|
/* if previous was skipped too, then nothing to do ! */ |
|
if (*mbskip_ptr >= age && s->current_picture.reference){ |
|
return; |
|
} |
|
} else if(!s->current_picture.reference){ |
|
(*mbskip_ptr) ++; /* increase counter so the age can be compared cleanly */ |
|
if(*mbskip_ptr >99) *mbskip_ptr= 99; |
|
} else{ |
|
*mbskip_ptr = 0; /* not skipped */ |
|
} |
|
} |
|
|
|
dct_linesize = linesize << s->interlaced_dct; |
|
dct_offset =(s->interlaced_dct)? linesize : linesize*block_size; |
|
|
|
if(readable){ |
|
dest_y= s->dest[0]; |
|
dest_cb= s->dest[1]; |
|
dest_cr= s->dest[2]; |
|
}else{ |
|
dest_y = s->b_scratchpad; |
|
dest_cb= s->b_scratchpad+16*linesize; |
|
dest_cr= s->b_scratchpad+32*linesize; |
|
} |
|
|
|
if (!s->mb_intra) { |
|
/* motion handling */ |
|
/* decoding or more than one mb_type (MC was already done otherwise) */ |
|
if(!s->encoding){ |
|
if(lowres_flag){ |
|
h264_chroma_mc_func *op_pix = s->dsp.put_h264_chroma_pixels_tab; |
|
|
|
if (s->mv_dir & MV_DIR_FORWARD) { |
|
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix); |
|
op_pix = s->dsp.avg_h264_chroma_pixels_tab; |
|
} |
|
if (s->mv_dir & MV_DIR_BACKWARD) { |
|
MPV_motion_lowres(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix); |
|
} |
|
}else{ |
|
op_qpix= s->me.qpel_put; |
|
if ((!s->no_rounding) || s->pict_type==FF_B_TYPE){ |
|
op_pix = s->dsp.put_pixels_tab; |
|
}else{ |
|
op_pix = s->dsp.put_no_rnd_pixels_tab; |
|
} |
|
if (s->mv_dir & MV_DIR_FORWARD) { |
|
MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.data, op_pix, op_qpix); |
|
op_pix = s->dsp.avg_pixels_tab; |
|
op_qpix= s->me.qpel_avg; |
|
} |
|
if (s->mv_dir & MV_DIR_BACKWARD) { |
|
MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.data, op_pix, op_qpix); |
|
} |
|
} |
|
} |
|
|
|
/* skip dequant / idct if we are really late ;) */ |
|
if(s->hurry_up>1) goto skip_idct; |
|
if(s->avctx->skip_idct){ |
|
if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == FF_B_TYPE) |
|
||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != FF_I_TYPE) |
|
|| s->avctx->skip_idct >= AVDISCARD_ALL) |
|
goto skip_idct; |
|
} |
|
|
|
/* add dct residue */ |
|
if(s->encoding || !( s->h263_msmpeg4 || s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO |
|
|| (s->codec_id==CODEC_ID_MPEG4 && !s->mpeg_quant))){ |
|
add_dequant_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); |
|
add_dequant_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); |
|
add_dequant_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); |
|
add_dequant_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
if (s->chroma_y_shift){ |
|
add_dequant_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); |
|
add_dequant_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); |
|
}else{ |
|
dct_linesize >>= 1; |
|
dct_offset >>=1; |
|
add_dequant_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); |
|
add_dequant_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); |
|
add_dequant_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); |
|
add_dequant_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); |
|
} |
|
} |
|
} else if(is_mpeg12 || (s->codec_id != CODEC_ID_WMV2)){ |
|
add_dct(s, block[0], 0, dest_y , dct_linesize); |
|
add_dct(s, block[1], 1, dest_y + block_size, dct_linesize); |
|
add_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize); |
|
add_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize); |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
if(s->chroma_y_shift){//Chroma420 |
|
add_dct(s, block[4], 4, dest_cb, uvlinesize); |
|
add_dct(s, block[5], 5, dest_cr, uvlinesize); |
|
}else{ |
|
//chroma422 |
|
dct_linesize = uvlinesize << s->interlaced_dct; |
|
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8; |
|
|
|
add_dct(s, block[4], 4, dest_cb, dct_linesize); |
|
add_dct(s, block[5], 5, dest_cr, dct_linesize); |
|
add_dct(s, block[6], 6, dest_cb+dct_offset, dct_linesize); |
|
add_dct(s, block[7], 7, dest_cr+dct_offset, dct_linesize); |
|
if(!s->chroma_x_shift){//Chroma444 |
|
add_dct(s, block[8], 8, dest_cb+8, dct_linesize); |
|
add_dct(s, block[9], 9, dest_cr+8, dct_linesize); |
|
add_dct(s, block[10], 10, dest_cb+8+dct_offset, dct_linesize); |
|
add_dct(s, block[11], 11, dest_cr+8+dct_offset, dct_linesize); |
|
} |
|
} |
|
}//fi gray |
|
} |
|
else if (CONFIG_WMV2_DECODER || CONFIG_WMV2_ENCODER) { |
|
ff_wmv2_add_mb(s, block, dest_y, dest_cb, dest_cr); |
|
} |
|
} else { |
|
/* dct only in intra block */ |
|
if(s->encoding || !(s->codec_id==CODEC_ID_MPEG1VIDEO || s->codec_id==CODEC_ID_MPEG2VIDEO)){ |
|
put_dct(s, block[0], 0, dest_y , dct_linesize, s->qscale); |
|
put_dct(s, block[1], 1, dest_y + block_size, dct_linesize, s->qscale); |
|
put_dct(s, block[2], 2, dest_y + dct_offset , dct_linesize, s->qscale); |
|
put_dct(s, block[3], 3, dest_y + dct_offset + block_size, dct_linesize, s->qscale); |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
if(s->chroma_y_shift){ |
|
put_dct(s, block[4], 4, dest_cb, uvlinesize, s->chroma_qscale); |
|
put_dct(s, block[5], 5, dest_cr, uvlinesize, s->chroma_qscale); |
|
}else{ |
|
dct_offset >>=1; |
|
dct_linesize >>=1; |
|
put_dct(s, block[4], 4, dest_cb, dct_linesize, s->chroma_qscale); |
|
put_dct(s, block[5], 5, dest_cr, dct_linesize, s->chroma_qscale); |
|
put_dct(s, block[6], 6, dest_cb + dct_offset, dct_linesize, s->chroma_qscale); |
|
put_dct(s, block[7], 7, dest_cr + dct_offset, dct_linesize, s->chroma_qscale); |
|
} |
|
} |
|
}else{ |
|
s->dsp.idct_put(dest_y , dct_linesize, block[0]); |
|
s->dsp.idct_put(dest_y + block_size, dct_linesize, block[1]); |
|
s->dsp.idct_put(dest_y + dct_offset , dct_linesize, block[2]); |
|
s->dsp.idct_put(dest_y + dct_offset + block_size, dct_linesize, block[3]); |
|
|
|
if(!CONFIG_GRAY || !(s->flags&CODEC_FLAG_GRAY)){ |
|
if(s->chroma_y_shift){ |
|
s->dsp.idct_put(dest_cb, uvlinesize, block[4]); |
|
s->dsp.idct_put(dest_cr, uvlinesize, block[5]); |
|
}else{ |
|
|
|
dct_linesize = uvlinesize << s->interlaced_dct; |
|
dct_offset =(s->interlaced_dct)? uvlinesize : uvlinesize*8; |
|
|
|
s->dsp.idct_put(dest_cb, dct_linesize, block[4]); |
|
s->dsp.idct_put(dest_cr, dct_linesize, block[5]); |
|
s->dsp.idct_put(dest_cb + dct_offset, dct_linesize, block[6]); |
|
s->dsp.idct_put(dest_cr + dct_offset, dct_linesize, block[7]); |
|
if(!s->chroma_x_shift){//Chroma444 |
|
s->dsp.idct_put(dest_cb + 8, dct_linesize, block[8]); |
|
s->dsp.idct_put(dest_cr + 8, dct_linesize, block[9]); |
|
s->dsp.idct_put(dest_cb + 8 + dct_offset, dct_linesize, block[10]); |
|
s->dsp.idct_put(dest_cr + 8 + dct_offset, dct_linesize, block[11]); |
|
} |
|
} |
|
}//gray |
|
} |
|
} |
|
skip_idct: |
|
if(!readable){ |
|
s->dsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); |
|
s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); |
|
s->dsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); |
|
} |
|
} |
|
} |
|
|
|
void MPV_decode_mb(MpegEncContext *s, DCTELEM block[12][64]){ |
|
#if !CONFIG_SMALL |
|
if(s->out_format == FMT_MPEG1) { |
|
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 1); |
|
else MPV_decode_mb_internal(s, block, 0, 1); |
|
} else |
|
#endif |
|
if(s->avctx->lowres) MPV_decode_mb_internal(s, block, 1, 0); |
|
else MPV_decode_mb_internal(s, block, 0, 0); |
|
} |
|
|
|
/** |
|
* |
|
* @param h is the normal height, this will be reduced automatically if needed for the last row |
|
*/ |
|
void ff_draw_horiz_band(MpegEncContext *s, int y, int h){ |
|
if (s->avctx->draw_horiz_band) { |
|
AVFrame *src; |
|
const int field_pic= s->picture_structure != PICT_FRAME; |
|
int offset[4]; |
|
|
|
h= FFMIN(h, (s->avctx->height>>field_pic) - y); |
|
|
|
if(field_pic && !(s->avctx->slice_flags&SLICE_FLAG_ALLOW_FIELD)){ |
|
h <<= 1; |
|
y <<= 1; |
|
if(s->first_field) return; |
|
} |
|
|
|
if(s->pict_type==FF_B_TYPE || s->low_delay || (s->avctx->slice_flags&SLICE_FLAG_CODED_ORDER)) |
|
src= (AVFrame*)s->current_picture_ptr; |
|
else if(s->last_picture_ptr) |
|
src= (AVFrame*)s->last_picture_ptr; |
|
else |
|
return; |
|
|
|
if(s->pict_type==FF_B_TYPE && s->picture_structure == PICT_FRAME && s->out_format != FMT_H264){ |
|
offset[0]= |
|
offset[1]= |
|
offset[2]= |
|
offset[3]= 0; |
|
}else{ |
|
offset[0]= y * s->linesize; |
|
offset[1]= |
|
offset[2]= (y >> s->chroma_y_shift) * s->uvlinesize; |
|
offset[3]= 0; |
|
} |
|
|
|
emms_c(); |
|
|
|
s->avctx->draw_horiz_band(s->avctx, src, offset, |
|
y, s->picture_structure, h); |
|
} |
|
} |
|
|
|
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename |
|
const int linesize= s->current_picture.linesize[0]; //not s->linesize as this would be wrong for field pics |
|
const int uvlinesize= s->current_picture.linesize[1]; |
|
const int mb_size= 4 - s->avctx->lowres; |
|
|
|
s->block_index[0]= s->b8_stride*(s->mb_y*2 ) - 2 + s->mb_x*2; |
|
s->block_index[1]= s->b8_stride*(s->mb_y*2 ) - 1 + s->mb_x*2; |
|
s->block_index[2]= s->b8_stride*(s->mb_y*2 + 1) - 2 + s->mb_x*2; |
|
s->block_index[3]= s->b8_stride*(s->mb_y*2 + 1) - 1 + s->mb_x*2; |
|
s->block_index[4]= s->mb_stride*(s->mb_y + 1) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; |
|
s->block_index[5]= s->mb_stride*(s->mb_y + s->mb_height + 2) + s->b8_stride*s->mb_height*2 + s->mb_x - 1; |
|
//block_index is not used by mpeg2, so it is not affected by chroma_format |
|
|
|
s->dest[0] = s->current_picture.data[0] + ((s->mb_x - 1) << mb_size); |
|
s->dest[1] = s->current_picture.data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
|
s->dest[2] = s->current_picture.data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
|
|
|
if(!(s->pict_type==FF_B_TYPE && s->avctx->draw_horiz_band && s->picture_structure==PICT_FRAME)) |
|
{ |
|
if(s->picture_structure==PICT_FRAME){ |
|
s->dest[0] += s->mb_y * linesize << mb_size; |
|
s->dest[1] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); |
|
s->dest[2] += s->mb_y * uvlinesize << (mb_size - s->chroma_y_shift); |
|
}else{ |
|
s->dest[0] += (s->mb_y>>1) * linesize << mb_size; |
|
s->dest[1] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); |
|
s->dest[2] += (s->mb_y>>1) * uvlinesize << (mb_size - s->chroma_y_shift); |
|
assert((s->mb_y&1) == (s->picture_structure == PICT_BOTTOM_FIELD)); |
|
} |
|
} |
|
} |
|
|
|
void ff_mpeg_flush(AVCodecContext *avctx){ |
|
int i; |
|
MpegEncContext *s = avctx->priv_data; |
|
|
|
if(s==NULL || s->picture==NULL) |
|
return; |
|
|
|
for(i=0; i<MAX_PICTURE_COUNT; i++){ |
|
if(s->picture[i].data[0] && ( s->picture[i].type == FF_BUFFER_TYPE_INTERNAL |
|
|| s->picture[i].type == FF_BUFFER_TYPE_USER)) |
|
free_frame_buffer(s, &s->picture[i]); |
|
} |
|
s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL; |
|
|
|
s->mb_x= s->mb_y= 0; |
|
s->closed_gop= 0; |
|
|
|
s->parse_context.state= -1; |
|
s->parse_context.frame_start_found= 0; |
|
s->parse_context.overread= 0; |
|
s->parse_context.overread_index= 0; |
|
s->parse_context.index= 0; |
|
s->parse_context.last_index= 0; |
|
s->bitstream_buffer_size=0; |
|
s->pp_time=0; |
|
} |
|
|
|
static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, nCoeffs; |
|
const uint16_t *quant_matrix; |
|
|
|
nCoeffs= s->block_last_index[n]; |
|
|
|
if (n < 4) |
|
block[0] = block[0] * s->y_dc_scale; |
|
else |
|
block[0] = block[0] * s->c_dc_scale; |
|
/* XXX: only mpeg1 */ |
|
quant_matrix = s->intra_matrix; |
|
for(i=1;i<=nCoeffs;i++) { |
|
int j= s->intra_scantable.permutated[i]; |
|
level = block[j]; |
|
if (level) { |
|
if (level < 0) { |
|
level = -level; |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
level = (level - 1) | 1; |
|
level = -level; |
|
} else { |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
level = (level - 1) | 1; |
|
} |
|
block[j] = level; |
|
} |
|
} |
|
} |
|
|
|
static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, nCoeffs; |
|
const uint16_t *quant_matrix; |
|
|
|
nCoeffs= s->block_last_index[n]; |
|
|
|
quant_matrix = s->inter_matrix; |
|
for(i=0; i<=nCoeffs; i++) { |
|
int j= s->intra_scantable.permutated[i]; |
|
level = block[j]; |
|
if (level) { |
|
if (level < 0) { |
|
level = -level; |
|
level = (((level << 1) + 1) * qscale * |
|
((int) (quant_matrix[j]))) >> 4; |
|
level = (level - 1) | 1; |
|
level = -level; |
|
} else { |
|
level = (((level << 1) + 1) * qscale * |
|
((int) (quant_matrix[j]))) >> 4; |
|
level = (level - 1) | 1; |
|
} |
|
block[j] = level; |
|
} |
|
} |
|
} |
|
|
|
static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, nCoeffs; |
|
const uint16_t *quant_matrix; |
|
|
|
if(s->alternate_scan) nCoeffs= 63; |
|
else nCoeffs= s->block_last_index[n]; |
|
|
|
if (n < 4) |
|
block[0] = block[0] * s->y_dc_scale; |
|
else |
|
block[0] = block[0] * s->c_dc_scale; |
|
quant_matrix = s->intra_matrix; |
|
for(i=1;i<=nCoeffs;i++) { |
|
int j= s->intra_scantable.permutated[i]; |
|
level = block[j]; |
|
if (level) { |
|
if (level < 0) { |
|
level = -level; |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
level = -level; |
|
} else { |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
} |
|
block[j] = level; |
|
} |
|
} |
|
} |
|
|
|
static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, nCoeffs; |
|
const uint16_t *quant_matrix; |
|
int sum=-1; |
|
|
|
if(s->alternate_scan) nCoeffs= 63; |
|
else nCoeffs= s->block_last_index[n]; |
|
|
|
if (n < 4) |
|
block[0] = block[0] * s->y_dc_scale; |
|
else |
|
block[0] = block[0] * s->c_dc_scale; |
|
quant_matrix = s->intra_matrix; |
|
for(i=1;i<=nCoeffs;i++) { |
|
int j= s->intra_scantable.permutated[i]; |
|
level = block[j]; |
|
if (level) { |
|
if (level < 0) { |
|
level = -level; |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
level = -level; |
|
} else { |
|
level = (int)(level * qscale * quant_matrix[j]) >> 3; |
|
} |
|
block[j] = level; |
|
sum+=level; |
|
} |
|
} |
|
block[63]^=sum&1; |
|
} |
|
|
|
static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, nCoeffs; |
|
const uint16_t *quant_matrix; |
|
int sum=-1; |
|
|
|
if(s->alternate_scan) nCoeffs= 63; |
|
else nCoeffs= s->block_last_index[n]; |
|
|
|
quant_matrix = s->inter_matrix; |
|
for(i=0; i<=nCoeffs; i++) { |
|
int j= s->intra_scantable.permutated[i]; |
|
level = block[j]; |
|
if (level) { |
|
if (level < 0) { |
|
level = -level; |
|
level = (((level << 1) + 1) * qscale * |
|
((int) (quant_matrix[j]))) >> 4; |
|
level = -level; |
|
} else { |
|
level = (((level << 1) + 1) * qscale * |
|
((int) (quant_matrix[j]))) >> 4; |
|
} |
|
block[j] = level; |
|
sum+=level; |
|
} |
|
} |
|
block[63]^=sum&1; |
|
} |
|
|
|
static void dct_unquantize_h263_intra_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, qmul, qadd; |
|
int nCoeffs; |
|
|
|
assert(s->block_last_index[n]>=0); |
|
|
|
qmul = qscale << 1; |
|
|
|
if (!s->h263_aic) { |
|
if (n < 4) |
|
block[0] = block[0] * s->y_dc_scale; |
|
else |
|
block[0] = block[0] * s->c_dc_scale; |
|
qadd = (qscale - 1) | 1; |
|
}else{ |
|
qadd = 0; |
|
} |
|
if(s->ac_pred) |
|
nCoeffs=63; |
|
else |
|
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
|
|
|
for(i=1; i<=nCoeffs; i++) { |
|
level = block[i]; |
|
if (level) { |
|
if (level < 0) { |
|
level = level * qmul - qadd; |
|
} else { |
|
level = level * qmul + qadd; |
|
} |
|
block[i] = level; |
|
} |
|
} |
|
} |
|
|
|
static void dct_unquantize_h263_inter_c(MpegEncContext *s, |
|
DCTELEM *block, int n, int qscale) |
|
{ |
|
int i, level, qmul, qadd; |
|
int nCoeffs; |
|
|
|
assert(s->block_last_index[n]>=0); |
|
|
|
qadd = (qscale - 1) | 1; |
|
qmul = qscale << 1; |
|
|
|
nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
|
|
|
for(i=0; i<=nCoeffs; i++) { |
|
level = block[i]; |
|
if (level) { |
|
if (level < 0) { |
|
level = level * qmul - qadd; |
|
} else { |
|
level = level * qmul + qadd; |
|
} |
|
block[i] = level; |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* set qscale and update qscale dependent variables. |
|
*/ |
|
void ff_set_qscale(MpegEncContext * s, int qscale) |
|
{ |
|
if (qscale < 1) |
|
qscale = 1; |
|
else if (qscale > 31) |
|
qscale = 31; |
|
|
|
s->qscale = qscale; |
|
s->chroma_qscale= s->chroma_qscale_table[qscale]; |
|
|
|
s->y_dc_scale= s->y_dc_scale_table[ qscale ]; |
|
s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ]; |
|
}
|
|
|