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2480 lines
84 KiB
2480 lines
84 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 Libav. |
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* |
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* Libav is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* Libav is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public |
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* License along with Libav; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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|
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/** |
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* @file |
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* The simplest mpeg encoder (well, it was the simplest!). |
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*/ |
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|
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#include "libavutil/attributes.h" |
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#include "libavutil/avassert.h" |
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#include "libavutil/imgutils.h" |
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#include "libavutil/internal.h" |
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#include "libavutil/timer.h" |
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#include "avcodec.h" |
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#include "dsputil.h" |
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#include "internal.h" |
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#include "mathops.h" |
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#include "mpegutils.h" |
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#include "mpegvideo.h" |
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#include "mjpegenc.h" |
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#include "msmpeg4.h" |
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#include "xvmc_internal.h" |
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#include "thread.h" |
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#include <limits.h> |
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|
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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 |
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0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, |
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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 |
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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, |
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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, |
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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, |
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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, |
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}; |
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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 |
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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, |
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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, |
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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, |
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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, |
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}; |
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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 |
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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, |
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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, |
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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, |
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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, |
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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 |
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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, |
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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, |
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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, |
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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, |
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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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static void dct_unquantize_mpeg1_intra_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, nCoeffs; |
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const uint16_t *quant_matrix; |
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|
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nCoeffs= s->block_last_index[n]; |
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|
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if (n < 4) |
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block[0] = block[0] * s->y_dc_scale; |
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else |
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block[0] = block[0] * s->c_dc_scale; |
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/* XXX: only mpeg1 */ |
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quant_matrix = s->intra_matrix; |
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for(i=1;i<=nCoeffs;i++) { |
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int j= s->intra_scantable.permutated[i]; |
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level = block[j]; |
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if (level) { |
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if (level < 0) { |
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level = -level; |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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level = (level - 1) | 1; |
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level = -level; |
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} else { |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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level = (level - 1) | 1; |
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} |
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block[j] = level; |
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} |
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} |
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} |
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|
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static void dct_unquantize_mpeg1_inter_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, nCoeffs; |
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const uint16_t *quant_matrix; |
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|
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nCoeffs= s->block_last_index[n]; |
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|
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quant_matrix = s->inter_matrix; |
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for(i=0; i<=nCoeffs; i++) { |
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int j= s->intra_scantable.permutated[i]; |
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level = block[j]; |
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if (level) { |
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if (level < 0) { |
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level = -level; |
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level = (((level << 1) + 1) * qscale * |
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((int) (quant_matrix[j]))) >> 4; |
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level = (level - 1) | 1; |
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level = -level; |
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} else { |
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level = (((level << 1) + 1) * qscale * |
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((int) (quant_matrix[j]))) >> 4; |
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level = (level - 1) | 1; |
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} |
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block[j] = level; |
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} |
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} |
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} |
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|
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static void dct_unquantize_mpeg2_intra_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, nCoeffs; |
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const uint16_t *quant_matrix; |
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|
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if(s->alternate_scan) nCoeffs= 63; |
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else nCoeffs= s->block_last_index[n]; |
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|
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if (n < 4) |
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block[0] = block[0] * s->y_dc_scale; |
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else |
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block[0] = block[0] * s->c_dc_scale; |
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quant_matrix = s->intra_matrix; |
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for(i=1;i<=nCoeffs;i++) { |
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int j= s->intra_scantable.permutated[i]; |
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level = block[j]; |
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if (level) { |
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if (level < 0) { |
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level = -level; |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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level = -level; |
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} else { |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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} |
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block[j] = level; |
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} |
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} |
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} |
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|
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static void dct_unquantize_mpeg2_intra_bitexact(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, nCoeffs; |
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const uint16_t *quant_matrix; |
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int sum=-1; |
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|
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if(s->alternate_scan) nCoeffs= 63; |
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else nCoeffs= s->block_last_index[n]; |
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|
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if (n < 4) |
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block[0] = block[0] * s->y_dc_scale; |
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else |
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block[0] = block[0] * s->c_dc_scale; |
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quant_matrix = s->intra_matrix; |
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for(i=1;i<=nCoeffs;i++) { |
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int j= s->intra_scantable.permutated[i]; |
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level = block[j]; |
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if (level) { |
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if (level < 0) { |
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level = -level; |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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level = -level; |
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} else { |
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level = (int)(level * qscale * quant_matrix[j]) >> 3; |
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} |
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block[j] = level; |
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sum+=level; |
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} |
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} |
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block[63]^=sum&1; |
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} |
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|
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static void dct_unquantize_mpeg2_inter_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, nCoeffs; |
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const uint16_t *quant_matrix; |
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int sum=-1; |
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|
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if(s->alternate_scan) nCoeffs= 63; |
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else nCoeffs= s->block_last_index[n]; |
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|
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quant_matrix = s->inter_matrix; |
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for(i=0; i<=nCoeffs; i++) { |
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int j= s->intra_scantable.permutated[i]; |
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level = block[j]; |
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if (level) { |
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if (level < 0) { |
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level = -level; |
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level = (((level << 1) + 1) * qscale * |
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((int) (quant_matrix[j]))) >> 4; |
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level = -level; |
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} else { |
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level = (((level << 1) + 1) * qscale * |
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((int) (quant_matrix[j]))) >> 4; |
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} |
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block[j] = level; |
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sum+=level; |
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} |
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} |
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block[63]^=sum&1; |
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} |
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|
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static void dct_unquantize_h263_intra_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, qmul, qadd; |
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int nCoeffs; |
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|
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assert(s->block_last_index[n]>=0); |
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qmul = qscale << 1; |
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if (!s->h263_aic) { |
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if (n < 4) |
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block[0] = block[0] * s->y_dc_scale; |
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else |
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block[0] = block[0] * s->c_dc_scale; |
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qadd = (qscale - 1) | 1; |
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}else{ |
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qadd = 0; |
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} |
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if(s->ac_pred) |
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nCoeffs=63; |
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else |
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
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|
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for(i=1; i<=nCoeffs; i++) { |
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level = block[i]; |
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if (level) { |
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if (level < 0) { |
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level = level * qmul - qadd; |
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} else { |
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level = level * qmul + qadd; |
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} |
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block[i] = level; |
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} |
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} |
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} |
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|
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static void dct_unquantize_h263_inter_c(MpegEncContext *s, |
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int16_t *block, int n, int qscale) |
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{ |
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int i, level, qmul, qadd; |
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int nCoeffs; |
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|
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assert(s->block_last_index[n]>=0); |
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qadd = (qscale - 1) | 1; |
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qmul = qscale << 1; |
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nCoeffs= s->inter_scantable.raster_end[ s->block_last_index[n] ]; |
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for(i=0; i<=nCoeffs; i++) { |
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level = block[i]; |
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if (level) { |
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if (level < 0) { |
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level = level * qmul - qadd; |
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} else { |
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level = level * qmul + qadd; |
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} |
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block[i] = level; |
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} |
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} |
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} |
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|
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static void mpeg_er_decode_mb(void *opaque, int ref, int mv_dir, int mv_type, |
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int (*mv)[2][4][2], |
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int mb_x, int mb_y, int mb_intra, int mb_skipped) |
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{ |
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MpegEncContext *s = opaque; |
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|
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s->mv_dir = mv_dir; |
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s->mv_type = mv_type; |
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s->mb_intra = mb_intra; |
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s->mb_skipped = mb_skipped; |
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s->mb_x = mb_x; |
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s->mb_y = mb_y; |
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memcpy(s->mv, mv, sizeof(*mv)); |
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|
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ff_init_block_index(s); |
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ff_update_block_index(s); |
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|
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s->dsp.clear_blocks(s->block[0]); |
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|
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s->dest[0] = s->current_picture.f->data[0] + (s->mb_y * 16 * s->linesize) + s->mb_x * 16; |
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s->dest[1] = s->current_picture.f->data[1] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift); |
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s->dest[2] = s->current_picture.f->data[2] + (s->mb_y * (16 >> s->chroma_y_shift) * s->uvlinesize) + s->mb_x * (16 >> s->chroma_x_shift); |
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|
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assert(ref == 0); |
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ff_MPV_decode_mb(s, s->block); |
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} |
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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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ff_dsputil_init(&s->dsp, s->avctx); |
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ff_hpeldsp_init(&s->hdsp, s->avctx->flags); |
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ff_videodsp_init(&s->vdsp, s->avctx->bits_per_raw_sample); |
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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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|
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if (ARCH_ARM) |
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ff_MPV_common_init_arm(s); |
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if (ARCH_PPC) |
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ff_MPV_common_init_ppc(s); |
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if (ARCH_X86) |
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ff_MPV_common_init_x86(s); |
|
|
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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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|
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return 0; |
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} |
|
|
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static int frame_size_alloc(MpegEncContext *s, int linesize) |
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{ |
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int alloc_size = FFALIGN(FFABS(linesize) + 32, 32); |
|
|
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// edge emu needs blocksize + filter length - 1 |
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// (= 17x17 for halfpel / 21x21 for h264) |
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// VC1 computes luma and chroma simultaneously and needs 19X19 + 9x9 |
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// at uvlinesize. It supports only YUV420 so 24x24 is enough |
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// linesize * interlaced * MBsize |
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FF_ALLOCZ_OR_GOTO(s->avctx, s->edge_emu_buffer, alloc_size * 2 * 24, |
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fail); |
|
|
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FF_ALLOCZ_OR_GOTO(s->avctx, s->me.scratchpad, alloc_size * 2 * 16 * 3, |
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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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return 0; |
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fail: |
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av_freep(&s->edge_emu_buffer); |
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return AVERROR(ENOMEM); |
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} |
|
|
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/** |
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* Allocate 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 edges_needed = av_codec_is_encoder(s->avctx->codec); |
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int r, ret; |
|
|
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pic->tf.f = pic->f; |
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if (s->codec_id != AV_CODEC_ID_WMV3IMAGE && |
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s->codec_id != AV_CODEC_ID_VC1IMAGE && |
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s->codec_id != AV_CODEC_ID_MSS2) { |
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if (edges_needed) { |
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pic->f->width = s->avctx->width + 2 * EDGE_WIDTH; |
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pic->f->height = s->avctx->height + 2 * EDGE_WIDTH; |
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} |
|
|
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r = ff_thread_get_buffer(s->avctx, &pic->tf, |
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pic->reference ? AV_GET_BUFFER_FLAG_REF : 0); |
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} else { |
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pic->f->width = s->avctx->width; |
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pic->f->height = s->avctx->height; |
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pic->f->format = s->avctx->pix_fmt; |
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r = avcodec_default_get_buffer2(s->avctx, pic->f, 0); |
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} |
|
|
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if (r < 0 || !pic->f->buf[0]) { |
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av_log(s->avctx, AV_LOG_ERROR, "get_buffer() failed (%d %p)\n", |
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r, pic->f->data[0]); |
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return -1; |
|
} |
|
|
|
if (edges_needed) { |
|
int i; |
|
for (i = 0; pic->f->data[i]; i++) { |
|
int offset = (EDGE_WIDTH >> (i ? s->chroma_y_shift : 0)) * |
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pic->f->linesize[i] + |
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(EDGE_WIDTH >> (i ? s->chroma_x_shift : 0)); |
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pic->f->data[i] += offset; |
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} |
|
pic->f->width = s->avctx->width; |
|
pic->f->height = s->avctx->height; |
|
} |
|
|
|
if (s->avctx->hwaccel) { |
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assert(!pic->hwaccel_picture_private); |
|
if (s->avctx->hwaccel->frame_priv_data_size) { |
|
pic->hwaccel_priv_buf = av_buffer_allocz(s->avctx->hwaccel->frame_priv_data_size); |
|
if (!pic->hwaccel_priv_buf) { |
|
av_log(s->avctx, AV_LOG_ERROR, "alloc_frame_buffer() failed (hwaccel private data allocation)\n"); |
|
return -1; |
|
} |
|
pic->hwaccel_picture_private = pic->hwaccel_priv_buf->data; |
|
} |
|
} |
|
|
|
if (s->linesize && (s->linesize != pic->f->linesize[0] || |
|
s->uvlinesize != pic->f->linesize[1])) { |
|
av_log(s->avctx, AV_LOG_ERROR, |
|
"get_buffer() failed (stride changed)\n"); |
|
ff_mpeg_unref_picture(s, pic); |
|
return -1; |
|
} |
|
|
|
if (pic->f->linesize[1] != pic->f->linesize[2]) { |
|
av_log(s->avctx, AV_LOG_ERROR, |
|
"get_buffer() failed (uv stride mismatch)\n"); |
|
ff_mpeg_unref_picture(s, pic); |
|
return -1; |
|
} |
|
|
|
if (!s->edge_emu_buffer && |
|
(ret = frame_size_alloc(s, pic->f->linesize[0])) < 0) { |
|
av_log(s->avctx, AV_LOG_ERROR, |
|
"get_buffer() failed to allocate context scratch buffers.\n"); |
|
ff_mpeg_unref_picture(s, pic); |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
void ff_free_picture_tables(Picture *pic) |
|
{ |
|
int i; |
|
|
|
av_buffer_unref(&pic->mb_var_buf); |
|
av_buffer_unref(&pic->mc_mb_var_buf); |
|
av_buffer_unref(&pic->mb_mean_buf); |
|
av_buffer_unref(&pic->mbskip_table_buf); |
|
av_buffer_unref(&pic->qscale_table_buf); |
|
av_buffer_unref(&pic->mb_type_buf); |
|
|
|
for (i = 0; i < 2; i++) { |
|
av_buffer_unref(&pic->motion_val_buf[i]); |
|
av_buffer_unref(&pic->ref_index_buf[i]); |
|
} |
|
} |
|
|
|
static int alloc_picture_tables(MpegEncContext *s, Picture *pic) |
|
{ |
|
const int big_mb_num = s->mb_stride * (s->mb_height + 1) + 1; |
|
const int mb_array_size = s->mb_stride * s->mb_height; |
|
const int b8_array_size = s->b8_stride * s->mb_height * 2; |
|
int i; |
|
|
|
|
|
pic->mbskip_table_buf = av_buffer_allocz(mb_array_size + 2); |
|
pic->qscale_table_buf = av_buffer_allocz(big_mb_num + s->mb_stride); |
|
pic->mb_type_buf = av_buffer_allocz((big_mb_num + s->mb_stride) * |
|
sizeof(uint32_t)); |
|
if (!pic->mbskip_table_buf || !pic->qscale_table_buf || !pic->mb_type_buf) |
|
return AVERROR(ENOMEM); |
|
|
|
if (s->encoding) { |
|
pic->mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t)); |
|
pic->mc_mb_var_buf = av_buffer_allocz(mb_array_size * sizeof(int16_t)); |
|
pic->mb_mean_buf = av_buffer_allocz(mb_array_size); |
|
if (!pic->mb_var_buf || !pic->mc_mb_var_buf || !pic->mb_mean_buf) |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
if (s->out_format == FMT_H263 || s->encoding) { |
|
int mv_size = 2 * (b8_array_size + 4) * sizeof(int16_t); |
|
int ref_index_size = 4 * mb_array_size; |
|
|
|
for (i = 0; mv_size && i < 2; i++) { |
|
pic->motion_val_buf[i] = av_buffer_allocz(mv_size); |
|
pic->ref_index_buf[i] = av_buffer_allocz(ref_index_size); |
|
if (!pic->motion_val_buf[i] || !pic->ref_index_buf[i]) |
|
return AVERROR(ENOMEM); |
|
} |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int make_tables_writable(Picture *pic) |
|
{ |
|
int ret, i; |
|
#define MAKE_WRITABLE(table) \ |
|
do {\ |
|
if (pic->table &&\ |
|
(ret = av_buffer_make_writable(&pic->table)) < 0)\ |
|
return ret;\ |
|
} while (0) |
|
|
|
MAKE_WRITABLE(mb_var_buf); |
|
MAKE_WRITABLE(mc_mb_var_buf); |
|
MAKE_WRITABLE(mb_mean_buf); |
|
MAKE_WRITABLE(mbskip_table_buf); |
|
MAKE_WRITABLE(qscale_table_buf); |
|
MAKE_WRITABLE(mb_type_buf); |
|
|
|
for (i = 0; i < 2; i++) { |
|
MAKE_WRITABLE(motion_val_buf[i]); |
|
MAKE_WRITABLE(ref_index_buf[i]); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* Allocate a Picture. |
|
* The pixels are allocated/set by calling get_buffer() if shared = 0 |
|
*/ |
|
int ff_alloc_picture(MpegEncContext *s, Picture *pic, int shared) |
|
{ |
|
int i, ret; |
|
|
|
if (shared) { |
|
assert(pic->f->data[0]); |
|
pic->shared = 1; |
|
} else { |
|
assert(!pic->f->buf[0]); |
|
|
|
if (alloc_frame_buffer(s, pic) < 0) |
|
return -1; |
|
|
|
s->linesize = pic->f->linesize[0]; |
|
s->uvlinesize = pic->f->linesize[1]; |
|
} |
|
|
|
if (!pic->qscale_table_buf) |
|
ret = alloc_picture_tables(s, pic); |
|
else |
|
ret = make_tables_writable(pic); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
if (s->encoding) { |
|
pic->mb_var = (uint16_t*)pic->mb_var_buf->data; |
|
pic->mc_mb_var = (uint16_t*)pic->mc_mb_var_buf->data; |
|
pic->mb_mean = pic->mb_mean_buf->data; |
|
} |
|
|
|
pic->mbskip_table = pic->mbskip_table_buf->data; |
|
pic->qscale_table = pic->qscale_table_buf->data + 2 * s->mb_stride + 1; |
|
pic->mb_type = (uint32_t*)pic->mb_type_buf->data + 2 * s->mb_stride + 1; |
|
|
|
if (pic->motion_val_buf[0]) { |
|
for (i = 0; i < 2; i++) { |
|
pic->motion_val[i] = (int16_t (*)[2])pic->motion_val_buf[i]->data + 4; |
|
pic->ref_index[i] = pic->ref_index_buf[i]->data; |
|
} |
|
} |
|
|
|
return 0; |
|
fail: |
|
av_log(s->avctx, AV_LOG_ERROR, "Error allocating a picture.\n"); |
|
ff_mpeg_unref_picture(s, pic); |
|
ff_free_picture_tables(pic); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
/** |
|
* Deallocate a picture. |
|
*/ |
|
void ff_mpeg_unref_picture(MpegEncContext *s, Picture *pic) |
|
{ |
|
int off = offsetof(Picture, mb_mean) + sizeof(pic->mb_mean); |
|
|
|
pic->tf.f = pic->f; |
|
/* WM Image / Screen codecs allocate internal buffers with different |
|
* dimensions / colorspaces; ignore user-defined callbacks for these. */ |
|
if (s->codec_id != AV_CODEC_ID_WMV3IMAGE && |
|
s->codec_id != AV_CODEC_ID_VC1IMAGE && |
|
s->codec_id != AV_CODEC_ID_MSS2) |
|
ff_thread_release_buffer(s->avctx, &pic->tf); |
|
else if (pic->f) |
|
av_frame_unref(pic->f); |
|
|
|
av_buffer_unref(&pic->hwaccel_priv_buf); |
|
|
|
if (pic->needs_realloc) |
|
ff_free_picture_tables(pic); |
|
|
|
memset((uint8_t*)pic + off, 0, sizeof(*pic) - off); |
|
} |
|
|
|
static int update_picture_tables(Picture *dst, Picture *src) |
|
{ |
|
int i; |
|
|
|
#define UPDATE_TABLE(table)\ |
|
do {\ |
|
if (src->table &&\ |
|
(!dst->table || dst->table->buffer != src->table->buffer)) {\ |
|
av_buffer_unref(&dst->table);\ |
|
dst->table = av_buffer_ref(src->table);\ |
|
if (!dst->table) {\ |
|
ff_free_picture_tables(dst);\ |
|
return AVERROR(ENOMEM);\ |
|
}\ |
|
}\ |
|
} while (0) |
|
|
|
UPDATE_TABLE(mb_var_buf); |
|
UPDATE_TABLE(mc_mb_var_buf); |
|
UPDATE_TABLE(mb_mean_buf); |
|
UPDATE_TABLE(mbskip_table_buf); |
|
UPDATE_TABLE(qscale_table_buf); |
|
UPDATE_TABLE(mb_type_buf); |
|
for (i = 0; i < 2; i++) { |
|
UPDATE_TABLE(motion_val_buf[i]); |
|
UPDATE_TABLE(ref_index_buf[i]); |
|
} |
|
|
|
dst->mb_var = src->mb_var; |
|
dst->mc_mb_var = src->mc_mb_var; |
|
dst->mb_mean = src->mb_mean; |
|
dst->mbskip_table = src->mbskip_table; |
|
dst->qscale_table = src->qscale_table; |
|
dst->mb_type = src->mb_type; |
|
for (i = 0; i < 2; i++) { |
|
dst->motion_val[i] = src->motion_val[i]; |
|
dst->ref_index[i] = src->ref_index[i]; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ff_mpeg_ref_picture(MpegEncContext *s, Picture *dst, Picture *src) |
|
{ |
|
int ret; |
|
|
|
av_assert0(!dst->f->buf[0]); |
|
av_assert0(src->f->buf[0]); |
|
|
|
src->tf.f = src->f; |
|
dst->tf.f = dst->f; |
|
ret = ff_thread_ref_frame(&dst->tf, &src->tf); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
ret = update_picture_tables(dst, src); |
|
if (ret < 0) |
|
goto fail; |
|
|
|
if (src->hwaccel_picture_private) { |
|
dst->hwaccel_priv_buf = av_buffer_ref(src->hwaccel_priv_buf); |
|
if (!dst->hwaccel_priv_buf) |
|
goto fail; |
|
dst->hwaccel_picture_private = dst->hwaccel_priv_buf->data; |
|
} |
|
|
|
dst->field_picture = src->field_picture; |
|
dst->mb_var_sum = src->mb_var_sum; |
|
dst->mc_mb_var_sum = src->mc_mb_var_sum; |
|
dst->b_frame_score = src->b_frame_score; |
|
dst->needs_realloc = src->needs_realloc; |
|
dst->reference = src->reference; |
|
dst->shared = src->shared; |
|
|
|
return 0; |
|
fail: |
|
ff_mpeg_unref_picture(s, dst); |
|
return ret; |
|
} |
|
|
|
static void exchange_uv(MpegEncContext *s) |
|
{ |
|
int16_t (*tmp)[64]; |
|
|
|
tmp = s->pblocks[4]; |
|
s->pblocks[4] = s->pblocks[5]; |
|
s->pblocks[5] = tmp; |
|
} |
|
|
|
static int init_duplicate_context(MpegEncContext *s) |
|
{ |
|
int y_size = s->b8_stride * (2 * s->mb_height + 1); |
|
int c_size = s->mb_stride * (s->mb_height + 1); |
|
int yc_size = y_size + 2 * c_size; |
|
int i; |
|
|
|
s->edge_emu_buffer = |
|
s->me.scratchpad = |
|
s->me.temp = |
|
s->rd_scratchpad = |
|
s->b_scratchpad = |
|
s->obmc_scratchpad = NULL; |
|
|
|
if (s->encoding) { |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->me.map, |
|
ME_MAP_SIZE * sizeof(uint32_t), fail) |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->me.score_map, |
|
ME_MAP_SIZE * sizeof(uint32_t), fail) |
|
if (s->avctx->noise_reduction) { |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->dct_error_sum, |
|
2 * 64 * sizeof(int), fail) |
|
} |
|
} |
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->blocks, 64 * 12 * 2 * sizeof(int16_t), fail) |
|
s->block = s->blocks[0]; |
|
|
|
for (i = 0; i < 12; i++) { |
|
s->pblocks[i] = &s->block[i]; |
|
} |
|
if (s->avctx->codec_tag == AV_RL32("VCR2")) |
|
exchange_uv(s); |
|
|
|
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; |
|
} |
|
|
|
return 0; |
|
fail: |
|
return -1; // free() through ff_MPV_common_end() |
|
} |
|
|
|
static void free_duplicate_context(MpegEncContext *s) |
|
{ |
|
if (s == NULL) |
|
return; |
|
|
|
av_freep(&s->edge_emu_buffer); |
|
av_freep(&s->me.scratchpad); |
|
s->me.temp = |
|
s->rd_scratchpad = |
|
s->b_scratchpad = |
|
s->obmc_scratchpad = NULL; |
|
|
|
av_freep(&s->dct_error_sum); |
|
av_freep(&s->me.map); |
|
av_freep(&s->me.score_map); |
|
av_freep(&s->blocks); |
|
av_freep(&s->ac_val_base); |
|
s->block = NULL; |
|
} |
|
|
|
static void backup_duplicate_context(MpegEncContext *bak, MpegEncContext *src) |
|
{ |
|
#define COPY(a) bak->a = src->a |
|
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]); |
|
COPY(ac_val_base); |
|
COPY(ac_val[0]); |
|
COPY(ac_val[1]); |
|
COPY(ac_val[2]); |
|
#undef COPY |
|
} |
|
|
|
int ff_update_duplicate_context(MpegEncContext *dst, MpegEncContext *src) |
|
{ |
|
MpegEncContext bak; |
|
int i, ret; |
|
// 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]; |
|
} |
|
if (dst->avctx->codec_tag == AV_RL32("VCR2")) |
|
exchange_uv(dst); |
|
if (!dst->edge_emu_buffer && |
|
(ret = frame_size_alloc(dst, dst->linesize)) < 0) { |
|
av_log(dst->avctx, AV_LOG_ERROR, "failed to allocate context " |
|
"scratch buffers.\n"); |
|
return ret; |
|
} |
|
// STOP_TIMER("update_duplicate_context") |
|
// about 10k cycles / 0.01 sec for 1000frames on 1ghz with 2 threads |
|
return 0; |
|
} |
|
|
|
int ff_mpeg_update_thread_context(AVCodecContext *dst, |
|
const AVCodecContext *src) |
|
{ |
|
int i, ret; |
|
MpegEncContext *s = dst->priv_data, *s1 = src->priv_data; |
|
|
|
if (dst == src || !s1->context_initialized) |
|
return 0; |
|
|
|
// FIXME can parameters change on I-frames? |
|
// in that case dst may need a reinit |
|
if (!s->context_initialized) { |
|
memcpy(s, s1, sizeof(MpegEncContext)); |
|
|
|
s->avctx = dst; |
|
s->bitstream_buffer = NULL; |
|
s->bitstream_buffer_size = s->allocated_bitstream_buffer_size = 0; |
|
|
|
ff_MPV_common_init(s); |
|
} |
|
|
|
if (s->height != s1->height || s->width != s1->width || s->context_reinit) { |
|
int err; |
|
s->context_reinit = 0; |
|
s->height = s1->height; |
|
s->width = s1->width; |
|
if ((err = ff_MPV_common_frame_size_change(s)) < 0) |
|
return err; |
|
} |
|
|
|
s->avctx->coded_height = s1->avctx->coded_height; |
|
s->avctx->coded_width = s1->avctx->coded_width; |
|
s->avctx->width = s1->avctx->width; |
|
s->avctx->height = s1->avctx->height; |
|
|
|
s->coded_picture_number = s1->coded_picture_number; |
|
s->picture_number = s1->picture_number; |
|
|
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
ff_mpeg_unref_picture(s, &s->picture[i]); |
|
if (s1->picture[i].f->buf[0] && |
|
(ret = ff_mpeg_ref_picture(s, &s->picture[i], &s1->picture[i])) < 0) |
|
return ret; |
|
} |
|
|
|
#define UPDATE_PICTURE(pic)\ |
|
do {\ |
|
ff_mpeg_unref_picture(s, &s->pic);\ |
|
if (s1->pic.f->buf[0])\ |
|
ret = ff_mpeg_ref_picture(s, &s->pic, &s1->pic);\ |
|
else\ |
|
ret = update_picture_tables(&s->pic, &s1->pic);\ |
|
if (ret < 0)\ |
|
return ret;\ |
|
} while (0) |
|
|
|
UPDATE_PICTURE(current_picture); |
|
UPDATE_PICTURE(last_picture); |
|
UPDATE_PICTURE(next_picture); |
|
|
|
s->last_picture_ptr = REBASE_PICTURE(s1->last_picture_ptr, s, s1); |
|
s->current_picture_ptr = REBASE_PICTURE(s1->current_picture_ptr, s, s1); |
|
s->next_picture_ptr = REBASE_PICTURE(s1->next_picture_ptr, s, s1); |
|
|
|
// Error/bug resilience |
|
s->next_p_frame_damaged = s1->next_p_frame_damaged; |
|
s->workaround_bugs = s1->workaround_bugs; |
|
|
|
// MPEG4 timing info |
|
memcpy(&s->last_time_base, &s1->last_time_base, |
|
(char *) &s1->pb_field_time + sizeof(s1->pb_field_time) - |
|
(char *) &s1->last_time_base); |
|
|
|
// B-frame info |
|
s->max_b_frames = s1->max_b_frames; |
|
s->low_delay = s1->low_delay; |
|
s->droppable = s1->droppable; |
|
|
|
// DivX handling (doesn't work) |
|
s->divx_packed = s1->divx_packed; |
|
|
|
if (s1->bitstream_buffer) { |
|
if (s1->bitstream_buffer_size + |
|
FF_INPUT_BUFFER_PADDING_SIZE > s->allocated_bitstream_buffer_size) |
|
av_fast_malloc(&s->bitstream_buffer, |
|
&s->allocated_bitstream_buffer_size, |
|
s1->allocated_bitstream_buffer_size); |
|
s->bitstream_buffer_size = s1->bitstream_buffer_size; |
|
memcpy(s->bitstream_buffer, s1->bitstream_buffer, |
|
s1->bitstream_buffer_size); |
|
memset(s->bitstream_buffer + s->bitstream_buffer_size, 0, |
|
FF_INPUT_BUFFER_PADDING_SIZE); |
|
} |
|
|
|
// linesize dependend scratch buffer allocation |
|
if (!s->edge_emu_buffer) |
|
if (s1->linesize) { |
|
if (frame_size_alloc(s, s1->linesize) < 0) { |
|
av_log(s->avctx, AV_LOG_ERROR, "Failed to allocate context " |
|
"scratch buffers.\n"); |
|
return AVERROR(ENOMEM); |
|
} |
|
} else { |
|
av_log(s->avctx, AV_LOG_ERROR, "Context scratch buffers could not " |
|
"be allocated due to unknown size.\n"); |
|
return AVERROR_BUG; |
|
} |
|
|
|
// MPEG2/interlacing info |
|
memcpy(&s->progressive_sequence, &s1->progressive_sequence, |
|
(char *) &s1->rtp_mode - (char *) &s1->progressive_sequence); |
|
|
|
if (!s1->first_field) { |
|
s->last_pict_type = s1->pict_type; |
|
if (s1->current_picture_ptr) |
|
s->last_lambda_for[s1->pict_type] = s1->current_picture_ptr->f->quality; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/** |
|
* Set 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 ff_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->f_code = 1; |
|
s->b_code = 1; |
|
|
|
s->slice_context_count = 1; |
|
} |
|
|
|
/** |
|
* Set the given MpegEncContext to defaults for decoding. |
|
* the changed fields will not depend upon |
|
* the prior state of the MpegEncContext. |
|
*/ |
|
void ff_MPV_decode_defaults(MpegEncContext *s) |
|
{ |
|
ff_MPV_common_defaults(s); |
|
} |
|
|
|
static int init_er(MpegEncContext *s) |
|
{ |
|
ERContext *er = &s->er; |
|
int mb_array_size = s->mb_height * s->mb_stride; |
|
int i; |
|
|
|
er->avctx = s->avctx; |
|
er->dsp = &s->dsp; |
|
|
|
er->mb_index2xy = s->mb_index2xy; |
|
er->mb_num = s->mb_num; |
|
er->mb_width = s->mb_width; |
|
er->mb_height = s->mb_height; |
|
er->mb_stride = s->mb_stride; |
|
er->b8_stride = s->b8_stride; |
|
|
|
er->er_temp_buffer = av_malloc(s->mb_height * s->mb_stride); |
|
er->error_status_table = av_mallocz(mb_array_size); |
|
if (!er->er_temp_buffer || !er->error_status_table) |
|
goto fail; |
|
|
|
er->mbskip_table = s->mbskip_table; |
|
er->mbintra_table = s->mbintra_table; |
|
|
|
for (i = 0; i < FF_ARRAY_ELEMS(s->dc_val); i++) |
|
er->dc_val[i] = s->dc_val[i]; |
|
|
|
er->decode_mb = mpeg_er_decode_mb; |
|
er->opaque = s; |
|
|
|
return 0; |
|
fail: |
|
av_freep(&er->er_temp_buffer); |
|
av_freep(&er->error_status_table); |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
/** |
|
* Initialize and allocates MpegEncContext fields dependent on the resolution. |
|
*/ |
|
static int init_context_frame(MpegEncContext *s) |
|
{ |
|
int y_size, c_size, yc_size, i, mb_array_size, mv_table_size, x, y; |
|
|
|
s->mb_width = (s->width + 15) / 16; |
|
s->mb_stride = s->mb_width + 1; |
|
s->b8_stride = s->mb_width * 2 + 1; |
|
mb_array_size = s->mb_height * s->mb_stride; |
|
mv_table_size = (s->mb_height + 2) * s->mb_stride + 1; |
|
|
|
/* 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; |
|
|
|
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; |
|
|
|
/* 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_ALLOC_OR_GOTO(s->avctx, s->cplx_tab, |
|
mb_array_size * sizeof(float), fail); |
|
FF_ALLOC_OR_GOTO(s->avctx, s->bits_tab, |
|
mb_array_size * sizeof(float), fail); |
|
|
|
} |
|
|
|
if (s->codec_id == AV_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) { |
|
/* 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 |
|
|
|
return init_er(s); |
|
fail: |
|
return AVERROR(ENOMEM); |
|
} |
|
|
|
/** |
|
* init common structure for both encoder and decoder. |
|
* this assumes that some variables like width/height are already set |
|
*/ |
|
av_cold int ff_MPV_common_init(MpegEncContext *s) |
|
{ |
|
int i; |
|
int nb_slices = (HAVE_THREADS && |
|
s->avctx->active_thread_type & FF_THREAD_SLICE) ? |
|
s->avctx->thread_count : 1; |
|
|
|
if (s->encoding && s->avctx->slices) |
|
nb_slices = s->avctx->slices; |
|
|
|
if (s->codec_id == AV_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 == AV_PIX_FMT_NONE) { |
|
av_log(s->avctx, AV_LOG_ERROR, |
|
"decoding to AV_PIX_FMT_NONE is not supported.\n"); |
|
return -1; |
|
} |
|
|
|
if (nb_slices > MAX_THREADS || (nb_slices > s->mb_height && s->mb_height)) { |
|
int max_slices; |
|
if (s->mb_height) |
|
max_slices = FFMIN(MAX_THREADS, s->mb_height); |
|
else |
|
max_slices = MAX_THREADS; |
|
av_log(s->avctx, AV_LOG_WARNING, "too many threads/slices (%d)," |
|
" reducing to %d\n", nb_slices, max_slices); |
|
nb_slices = max_slices; |
|
} |
|
|
|
if ((s->width || s->height) && |
|
av_image_check_size(s->width, s->height, 0, s->avctx)) |
|
return -1; |
|
|
|
ff_dct_common_init(s); |
|
|
|
s->flags = s->avctx->flags; |
|
s->flags2 = s->avctx->flags2; |
|
|
|
/* set chroma shifts */ |
|
av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, |
|
&s->chroma_x_shift, |
|
&s->chroma_y_shift); |
|
|
|
/* convert fourcc to upper case */ |
|
s->codec_tag = avpriv_toupper4(s->avctx->codec_tag); |
|
|
|
s->stream_codec_tag = avpriv_toupper4(s->avctx->stream_codec_tag); |
|
|
|
FF_ALLOCZ_OR_GOTO(s->avctx, s->picture, |
|
MAX_PICTURE_COUNT * sizeof(Picture), fail); |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
s->picture[i].f = av_frame_alloc(); |
|
if (!s->picture[i].f) |
|
goto fail; |
|
} |
|
memset(&s->next_picture, 0, sizeof(s->next_picture)); |
|
memset(&s->last_picture, 0, sizeof(s->last_picture)); |
|
memset(&s->current_picture, 0, sizeof(s->current_picture)); |
|
memset(&s->new_picture, 0, sizeof(s->new_picture)); |
|
s->next_picture.f = av_frame_alloc(); |
|
if (!s->next_picture.f) |
|
goto fail; |
|
s->last_picture.f = av_frame_alloc(); |
|
if (!s->last_picture.f) |
|
goto fail; |
|
s->current_picture.f = av_frame_alloc(); |
|
if (!s->current_picture.f) |
|
goto fail; |
|
s->new_picture.f = av_frame_alloc(); |
|
if (!s->new_picture.f) |
|
goto fail; |
|
|
|
if (s->width && s->height) { |
|
if (init_context_frame(s)) |
|
goto fail; |
|
|
|
s->parse_context.state = -1; |
|
} |
|
|
|
s->context_initialized = 1; |
|
s->thread_context[0] = s; |
|
|
|
if (s->width && s->height) { |
|
if (nb_slices > 1) { |
|
for (i = 1; i < nb_slices; i++) { |
|
s->thread_context[i] = av_malloc(sizeof(MpegEncContext)); |
|
memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); |
|
} |
|
|
|
for (i = 0; i < nb_slices; i++) { |
|
if (init_duplicate_context(s->thread_context[i]) < 0) |
|
goto fail; |
|
s->thread_context[i]->start_mb_y = |
|
(s->mb_height * (i) + nb_slices / 2) / nb_slices; |
|
s->thread_context[i]->end_mb_y = |
|
(s->mb_height * (i + 1) + nb_slices / 2) / nb_slices; |
|
} |
|
} else { |
|
if (init_duplicate_context(s) < 0) |
|
goto fail; |
|
s->start_mb_y = 0; |
|
s->end_mb_y = s->mb_height; |
|
} |
|
s->slice_context_count = nb_slices; |
|
} |
|
|
|
return 0; |
|
fail: |
|
ff_MPV_common_end(s); |
|
return -1; |
|
} |
|
|
|
/** |
|
* Frees and resets MpegEncContext fields depending on the resolution. |
|
* Is used during resolution changes to avoid a full reinitialization of the |
|
* codec. |
|
*/ |
|
static int free_context_frame(MpegEncContext *s) |
|
{ |
|
int i, j, k; |
|
|
|
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->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->er.error_status_table); |
|
av_freep(&s->er.er_temp_buffer); |
|
av_freep(&s->mb_index2xy); |
|
av_freep(&s->lambda_table); |
|
av_freep(&s->cplx_tab); |
|
av_freep(&s->bits_tab); |
|
|
|
s->linesize = s->uvlinesize = 0; |
|
|
|
return 0; |
|
} |
|
|
|
int ff_MPV_common_frame_size_change(MpegEncContext *s) |
|
{ |
|
int i, err = 0; |
|
|
|
if (s->slice_context_count > 1) { |
|
for (i = 0; i < s->slice_context_count; i++) { |
|
free_duplicate_context(s->thread_context[i]); |
|
} |
|
for (i = 1; i < s->slice_context_count; i++) { |
|
av_freep(&s->thread_context[i]); |
|
} |
|
} else |
|
free_duplicate_context(s); |
|
|
|
if ((err = free_context_frame(s)) < 0) |
|
return err; |
|
|
|
if (s->picture) |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
s->picture[i].needs_realloc = 1; |
|
} |
|
|
|
s->last_picture_ptr = |
|
s->next_picture_ptr = |
|
s->current_picture_ptr = NULL; |
|
|
|
// init |
|
if (s->codec_id == AV_CODEC_ID_MPEG2VIDEO && !s->progressive_sequence) |
|
s->mb_height = (s->height + 31) / 32 * 2; |
|
else |
|
s->mb_height = (s->height + 15) / 16; |
|
|
|
if ((s->width || s->height) && |
|
av_image_check_size(s->width, s->height, 0, s->avctx)) |
|
return AVERROR_INVALIDDATA; |
|
|
|
if ((err = init_context_frame(s))) |
|
goto fail; |
|
|
|
s->thread_context[0] = s; |
|
|
|
if (s->width && s->height) { |
|
int nb_slices = s->slice_context_count; |
|
if (nb_slices > 1) { |
|
for (i = 1; i < nb_slices; i++) { |
|
s->thread_context[i] = av_malloc(sizeof(MpegEncContext)); |
|
memcpy(s->thread_context[i], s, sizeof(MpegEncContext)); |
|
} |
|
|
|
for (i = 0; i < nb_slices; i++) { |
|
if (init_duplicate_context(s->thread_context[i]) < 0) |
|
goto fail; |
|
s->thread_context[i]->start_mb_y = |
|
(s->mb_height * (i) + nb_slices / 2) / nb_slices; |
|
s->thread_context[i]->end_mb_y = |
|
(s->mb_height * (i + 1) + nb_slices / 2) / nb_slices; |
|
} |
|
} else { |
|
if (init_duplicate_context(s) < 0) |
|
goto fail; |
|
s->start_mb_y = 0; |
|
s->end_mb_y = s->mb_height; |
|
} |
|
s->slice_context_count = nb_slices; |
|
} |
|
|
|
return 0; |
|
fail: |
|
ff_MPV_common_end(s); |
|
return err; |
|
} |
|
|
|
/* init common structure for both encoder and decoder */ |
|
void ff_MPV_common_end(MpegEncContext *s) |
|
{ |
|
int i; |
|
|
|
if (s->slice_context_count > 1) { |
|
for (i = 0; i < s->slice_context_count; i++) { |
|
free_duplicate_context(s->thread_context[i]); |
|
} |
|
for (i = 1; i < s->slice_context_count; i++) { |
|
av_freep(&s->thread_context[i]); |
|
} |
|
s->slice_context_count = 1; |
|
} else free_duplicate_context(s); |
|
|
|
av_freep(&s->parse_context.buffer); |
|
s->parse_context.buffer_size = 0; |
|
|
|
av_freep(&s->bitstream_buffer); |
|
s->allocated_bitstream_buffer_size = 0; |
|
|
|
if (s->picture) { |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
ff_free_picture_tables(&s->picture[i]); |
|
ff_mpeg_unref_picture(s, &s->picture[i]); |
|
av_frame_free(&s->picture[i].f); |
|
} |
|
} |
|
av_freep(&s->picture); |
|
ff_free_picture_tables(&s->last_picture); |
|
ff_mpeg_unref_picture(s, &s->last_picture); |
|
av_frame_free(&s->last_picture.f); |
|
ff_free_picture_tables(&s->current_picture); |
|
ff_mpeg_unref_picture(s, &s->current_picture); |
|
av_frame_free(&s->current_picture.f); |
|
ff_free_picture_tables(&s->next_picture); |
|
ff_mpeg_unref_picture(s, &s->next_picture); |
|
av_frame_free(&s->next_picture.f); |
|
ff_free_picture_tables(&s->new_picture); |
|
ff_mpeg_unref_picture(s, &s->new_picture); |
|
av_frame_free(&s->new_picture.f); |
|
|
|
free_context_frame(s); |
|
|
|
s->context_initialized = 0; |
|
s->last_picture_ptr = |
|
s->next_picture_ptr = |
|
s->current_picture_ptr = NULL; |
|
s->linesize = s->uvlinesize = 0; |
|
} |
|
|
|
av_cold void ff_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); |
|
} |
|
} |
|
|
|
av_cold void ff_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; |
|
} |
|
} |
|
} |
|
|
|
static void release_unused_pictures(MpegEncContext *s) |
|
{ |
|
int i; |
|
|
|
/* release non reference frames */ |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
if (!s->picture[i].reference) |
|
ff_mpeg_unref_picture(s, &s->picture[i]); |
|
} |
|
} |
|
|
|
static inline int pic_is_unused(MpegEncContext *s, Picture *pic) |
|
{ |
|
if (pic->f->buf[0] == NULL) |
|
return 1; |
|
if (pic->needs_realloc && !(pic->reference & DELAYED_PIC_REF)) |
|
return 1; |
|
return 0; |
|
} |
|
|
|
static int find_unused_picture(MpegEncContext *s, int shared) |
|
{ |
|
int i; |
|
|
|
if (shared) { |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
if (s->picture[i].f->buf[0] == NULL) |
|
return i; |
|
} |
|
} else { |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
if (pic_is_unused(s, &s->picture[i])) |
|
return i; |
|
} |
|
} |
|
|
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
int ff_find_unused_picture(MpegEncContext *s, int shared) |
|
{ |
|
int ret = find_unused_picture(s, shared); |
|
|
|
if (ret >= 0 && ret < MAX_PICTURE_COUNT) { |
|
if (s->picture[ret].needs_realloc) { |
|
s->picture[ret].needs_realloc = 0; |
|
ff_free_picture_tables(&s->picture[ret]); |
|
ff_mpeg_unref_picture(s, &s->picture[ret]); |
|
} |
|
} |
|
return ret; |
|
} |
|
|
|
/** |
|
* generic function called after decoding |
|
* the header and before a frame is decoded. |
|
*/ |
|
int ff_MPV_frame_start(MpegEncContext *s, AVCodecContext *avctx) |
|
{ |
|
int i, ret; |
|
Picture *pic; |
|
s->mb_skipped = 0; |
|
|
|
/* mark & release old frames */ |
|
if (s->pict_type != AV_PICTURE_TYPE_B && s->last_picture_ptr && |
|
s->last_picture_ptr != s->next_picture_ptr && |
|
s->last_picture_ptr->f->buf[0]) { |
|
ff_mpeg_unref_picture(s, s->last_picture_ptr); |
|
} |
|
|
|
/* release forgotten pictures */ |
|
/* if (mpeg124/h263) */ |
|
for (i = 0; i < MAX_PICTURE_COUNT; i++) { |
|
if (&s->picture[i] != s->last_picture_ptr && |
|
&s->picture[i] != s->next_picture_ptr && |
|
s->picture[i].reference && !s->picture[i].needs_realloc) { |
|
if (!(avctx->active_thread_type & FF_THREAD_FRAME)) |
|
av_log(avctx, AV_LOG_ERROR, |
|
"releasing zombie picture\n"); |
|
ff_mpeg_unref_picture(s, &s->picture[i]); |
|
} |
|
} |
|
|
|
ff_mpeg_unref_picture(s, &s->current_picture); |
|
|
|
release_unused_pictures(s); |
|
|
|
if (s->current_picture_ptr && |
|
s->current_picture_ptr->f->buf[0] == NULL) { |
|
// we already have a unused image |
|
// (maybe it was set before reading the header) |
|
pic = s->current_picture_ptr; |
|
} else { |
|
i = ff_find_unused_picture(s, 0); |
|
if (i < 0) { |
|
av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
|
return i; |
|
} |
|
pic = &s->picture[i]; |
|
} |
|
|
|
pic->reference = 0; |
|
if (!s->droppable) { |
|
if (s->pict_type != AV_PICTURE_TYPE_B) |
|
pic->reference = 3; |
|
} |
|
|
|
pic->f->coded_picture_number = s->coded_picture_number++; |
|
|
|
if (ff_alloc_picture(s, pic, 0) < 0) |
|
return -1; |
|
|
|
s->current_picture_ptr = pic; |
|
// FIXME use only the vars from current_pic |
|
s->current_picture_ptr->f->top_field_first = s->top_field_first; |
|
if (s->codec_id == AV_CODEC_ID_MPEG1VIDEO || |
|
s->codec_id == AV_CODEC_ID_MPEG2VIDEO) { |
|
if (s->picture_structure != PICT_FRAME) |
|
s->current_picture_ptr->f->top_field_first = |
|
(s->picture_structure == PICT_TOP_FIELD) == s->first_field; |
|
} |
|
s->current_picture_ptr->f->interlaced_frame = !s->progressive_frame && |
|
!s->progressive_sequence; |
|
s->current_picture_ptr->field_picture = s->picture_structure != PICT_FRAME; |
|
|
|
s->current_picture_ptr->f->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->f->key_frame = s->pict_type == AV_PICTURE_TYPE_I; |
|
|
|
if ((ret = ff_mpeg_ref_picture(s, &s->current_picture, |
|
s->current_picture_ptr)) < 0) |
|
return ret; |
|
|
|
if (s->pict_type != AV_PICTURE_TYPE_B) { |
|
s->last_picture_ptr = s->next_picture_ptr; |
|
if (!s->droppable) |
|
s->next_picture_ptr = s->current_picture_ptr; |
|
} |
|
av_dlog(s->avctx, "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->f->data[0] : NULL, |
|
s->next_picture_ptr ? s->next_picture_ptr->f->data[0] : NULL, |
|
s->current_picture_ptr ? s->current_picture_ptr->f->data[0] : NULL, |
|
s->pict_type, s->droppable); |
|
|
|
if ((s->last_picture_ptr == NULL || |
|
s->last_picture_ptr->f->buf[0] == NULL) && |
|
(s->pict_type != AV_PICTURE_TYPE_I || |
|
s->picture_structure != PICT_FRAME)) { |
|
int h_chroma_shift, v_chroma_shift; |
|
av_pix_fmt_get_chroma_sub_sample(s->avctx->pix_fmt, |
|
&h_chroma_shift, &v_chroma_shift); |
|
if (s->pict_type != AV_PICTURE_TYPE_I) |
|
av_log(avctx, AV_LOG_ERROR, |
|
"warning: first frame is no keyframe\n"); |
|
else if (s->picture_structure != PICT_FRAME) |
|
av_log(avctx, AV_LOG_INFO, |
|
"allocate dummy last picture for field based first keyframe\n"); |
|
|
|
/* Allocate a dummy frame */ |
|
i = ff_find_unused_picture(s, 0); |
|
if (i < 0) { |
|
av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
|
return i; |
|
} |
|
s->last_picture_ptr = &s->picture[i]; |
|
|
|
s->last_picture_ptr->reference = 3; |
|
s->last_picture_ptr->f->pict_type = AV_PICTURE_TYPE_I; |
|
|
|
if (ff_alloc_picture(s, s->last_picture_ptr, 0) < 0) { |
|
s->last_picture_ptr = NULL; |
|
return -1; |
|
} |
|
|
|
memset(s->last_picture_ptr->f->data[0], 0, |
|
avctx->height * s->last_picture_ptr->f->linesize[0]); |
|
memset(s->last_picture_ptr->f->data[1], 0x80, |
|
(avctx->height >> v_chroma_shift) * |
|
s->last_picture_ptr->f->linesize[1]); |
|
memset(s->last_picture_ptr->f->data[2], 0x80, |
|
(avctx->height >> v_chroma_shift) * |
|
s->last_picture_ptr->f->linesize[2]); |
|
|
|
ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 0); |
|
ff_thread_report_progress(&s->last_picture_ptr->tf, INT_MAX, 1); |
|
} |
|
if ((s->next_picture_ptr == NULL || |
|
s->next_picture_ptr->f->buf[0] == NULL) && |
|
s->pict_type == AV_PICTURE_TYPE_B) { |
|
/* Allocate a dummy frame */ |
|
i = ff_find_unused_picture(s, 0); |
|
if (i < 0) { |
|
av_log(s->avctx, AV_LOG_ERROR, "no frame buffer available\n"); |
|
return i; |
|
} |
|
s->next_picture_ptr = &s->picture[i]; |
|
|
|
s->next_picture_ptr->reference = 3; |
|
s->next_picture_ptr->f->pict_type = AV_PICTURE_TYPE_I; |
|
|
|
if (ff_alloc_picture(s, s->next_picture_ptr, 0) < 0) { |
|
s->next_picture_ptr = NULL; |
|
return -1; |
|
} |
|
ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 0); |
|
ff_thread_report_progress(&s->next_picture_ptr->tf, INT_MAX, 1); |
|
} |
|
|
|
if (s->last_picture_ptr) { |
|
ff_mpeg_unref_picture(s, &s->last_picture); |
|
if (s->last_picture_ptr->f->buf[0] && |
|
(ret = ff_mpeg_ref_picture(s, &s->last_picture, |
|
s->last_picture_ptr)) < 0) |
|
return ret; |
|
} |
|
if (s->next_picture_ptr) { |
|
ff_mpeg_unref_picture(s, &s->next_picture); |
|
if (s->next_picture_ptr->f->buf[0] && |
|
(ret = ff_mpeg_ref_picture(s, &s->next_picture, |
|
s->next_picture_ptr)) < 0) |
|
return ret; |
|
} |
|
|
|
if (s->pict_type != AV_PICTURE_TYPE_I && |
|
!(s->last_picture_ptr && s->last_picture_ptr->f->buf[0])) { |
|
av_log(s, AV_LOG_ERROR, |
|
"Non-reference picture received and no reference available\n"); |
|
return AVERROR_INVALIDDATA; |
|
} |
|
|
|
if (s->picture_structure!= PICT_FRAME) { |
|
int i; |
|
for (i = 0; i < 4; i++) { |
|
if (s->picture_structure == PICT_BOTTOM_FIELD) { |
|
s->current_picture.f->data[i] += |
|
s->current_picture.f->linesize[i]; |
|
} |
|
s->current_picture.f->linesize[i] *= 2; |
|
s->last_picture.f->linesize[i] *= 2; |
|
s->next_picture.f->linesize[i] *= 2; |
|
} |
|
} |
|
|
|
s->err_recognition = avctx->err_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 == AV_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 FF_API_XVMC |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) |
|
return ff_xvmc_field_start(s, avctx); |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_XVMC */ |
|
|
|
return 0; |
|
} |
|
|
|
/* called after a frame has been decoded. */ |
|
void ff_MPV_frame_end(MpegEncContext *s) |
|
{ |
|
#if FF_API_XVMC |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
/* redraw edges for the frame if decoding didn't complete */ |
|
// just to make sure that all data is rendered. |
|
if (CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration) { |
|
ff_xvmc_field_end(s); |
|
} else |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_XVMC */ |
|
|
|
emms_c(); |
|
|
|
if (s->current_picture.reference) |
|
ff_thread_report_progress(&s->current_picture_ptr->tf, INT_MAX, 0); |
|
} |
|
|
|
/** |
|
* Print debugging info for the given picture. |
|
*/ |
|
void ff_print_debug_info(MpegEncContext *s, Picture *p) |
|
{ |
|
AVFrame *pict; |
|
if (s->avctx->hwaccel || !p || !p->mb_type) |
|
return; |
|
pict = p->f; |
|
|
|
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 AV_PICTURE_TYPE_I: |
|
av_log(s->avctx,AV_LOG_DEBUG,"I\n"); |
|
break; |
|
case AV_PICTURE_TYPE_P: |
|
av_log(s->avctx,AV_LOG_DEBUG,"P\n"); |
|
break; |
|
case AV_PICTURE_TYPE_B: |
|
av_log(s->avctx,AV_LOG_DEBUG,"B\n"); |
|
break; |
|
case AV_PICTURE_TYPE_S: |
|
av_log(s->avctx,AV_LOG_DEBUG,"S\n"); |
|
break; |
|
case AV_PICTURE_TYPE_SI: |
|
av_log(s->avctx,AV_LOG_DEBUG,"SI\n"); |
|
break; |
|
case AV_PICTURE_TYPE_SP: |
|
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", |
|
p->qscale_table[x + y * s->mb_stride]); |
|
} |
|
if (s->avctx->debug & FF_DEBUG_MB_TYPE) { |
|
int mb_type = p->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)) |
|
av_log(s->avctx, AV_LOG_DEBUG, "="); |
|
else |
|
av_log(s->avctx, AV_LOG_DEBUG, " "); |
|
} |
|
} |
|
av_log(s->avctx, AV_LOG_DEBUG, "\n"); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* find the lowest MB row referenced in the MVs |
|
*/ |
|
int ff_MPV_lowest_referenced_row(MpegEncContext *s, int dir) |
|
{ |
|
int my_max = INT_MIN, my_min = INT_MAX, qpel_shift = !s->quarter_sample; |
|
int my, off, i, mvs; |
|
|
|
if (s->picture_structure != PICT_FRAME || s->mcsel) |
|
goto unhandled; |
|
|
|
switch (s->mv_type) { |
|
case MV_TYPE_16X16: |
|
mvs = 1; |
|
break; |
|
case MV_TYPE_16X8: |
|
mvs = 2; |
|
break; |
|
case MV_TYPE_8X8: |
|
mvs = 4; |
|
break; |
|
default: |
|
goto unhandled; |
|
} |
|
|
|
for (i = 0; i < mvs; i++) { |
|
my = s->mv[dir][i][1]<<qpel_shift; |
|
my_max = FFMAX(my_max, my); |
|
my_min = FFMIN(my_min, my); |
|
} |
|
|
|
off = (FFMAX(-my_min, my_max) + 63) >> 6; |
|
|
|
return FFMIN(FFMAX(s->mb_y + off, 0), s->mb_height-1); |
|
unhandled: |
|
return s->mb_height-1; |
|
} |
|
|
|
/* put block[] to dest[] */ |
|
static inline void put_dct(MpegEncContext *s, |
|
int16_t *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, |
|
int16_t *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, |
|
int16_t *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); |
|
} |
|
} |
|
|
|
/** |
|
* Clean 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, int16_t block[12][64], |
|
int is_mpeg12) |
|
{ |
|
const int mb_xy = s->mb_y * s->mb_stride + s->mb_x; |
|
|
|
#if FF_API_XVMC |
|
FF_DISABLE_DEPRECATION_WARNINGS |
|
if(CONFIG_MPEG_XVMC_DECODER && s->avctx->xvmc_acceleration){ |
|
ff_xvmc_decode_mb(s);//xvmc uses pblocks |
|
return; |
|
} |
|
FF_ENABLE_DEPRECATION_WARNINGS |
|
#endif /* FF_API_XVMC */ |
|
|
|
if(s->avctx->debug&FF_DEBUG_DCT_COEFF) { |
|
/* print DCT coefficients */ |
|
int i,j; |
|
av_log(s->avctx, AV_LOG_DEBUG, "DCT coeffs of MB at %dx%d:\n", s->mb_x, s->mb_y); |
|
for(i=0; i<6; i++){ |
|
for(j=0; j<64; j++){ |
|
av_log(s->avctx, AV_LOG_DEBUG, "%5d", block[i][s->dsp.idct_permutation[j]]); |
|
} |
|
av_log(s->avctx, AV_LOG_DEBUG, "\n"); |
|
} |
|
} |
|
|
|
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==AV_PICTURE_TYPE_B) && 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.f->linesize[0]; //not s->linesize as this would be wrong for field pics |
|
const int uvlinesize = s->current_picture.f->linesize[1]; |
|
const int readable= s->pict_type != AV_PICTURE_TYPE_B || s->encoding || s->avctx->draw_horiz_band; |
|
const int block_size = 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]; |
|
|
|
if (s->mb_skipped) { |
|
s->mb_skipped= 0; |
|
assert(s->pict_type!=AV_PICTURE_TYPE_I); |
|
*mbskip_ptr = 1; |
|
} else if(!s->current_picture.reference) { |
|
*mbskip_ptr = 1; |
|
} 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(HAVE_THREADS && s->avctx->active_thread_type&FF_THREAD_FRAME) { |
|
if (s->mv_dir & MV_DIR_FORWARD) { |
|
ff_thread_await_progress(&s->last_picture_ptr->tf, |
|
ff_MPV_lowest_referenced_row(s, 0), |
|
0); |
|
} |
|
if (s->mv_dir & MV_DIR_BACKWARD) { |
|
ff_thread_await_progress(&s->next_picture_ptr->tf, |
|
ff_MPV_lowest_referenced_row(s, 1), |
|
0); |
|
} |
|
} |
|
|
|
op_qpix= s->me.qpel_put; |
|
if ((!s->no_rounding) || s->pict_type==AV_PICTURE_TYPE_B){ |
|
op_pix = s->hdsp.put_pixels_tab; |
|
}else{ |
|
op_pix = s->hdsp.put_no_rnd_pixels_tab; |
|
} |
|
if (s->mv_dir & MV_DIR_FORWARD) { |
|
ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 0, s->last_picture.f->data, op_pix, op_qpix); |
|
op_pix = s->hdsp.avg_pixels_tab; |
|
op_qpix= s->me.qpel_avg; |
|
} |
|
if (s->mv_dir & MV_DIR_BACKWARD) { |
|
ff_MPV_motion(s, dest_y, dest_cb, dest_cr, 1, s->next_picture.f->data, op_pix, op_qpix); |
|
} |
|
} |
|
|
|
/* skip dequant / idct if we are really late ;) */ |
|
if(s->avctx->skip_idct){ |
|
if( (s->avctx->skip_idct >= AVDISCARD_NONREF && s->pict_type == AV_PICTURE_TYPE_B) |
|
||(s->avctx->skip_idct >= AVDISCARD_NONKEY && s->pict_type != AV_PICTURE_TYPE_I) |
|
|| s->avctx->skip_idct >= AVDISCARD_ALL) |
|
goto skip_idct; |
|
} |
|
|
|
/* add dct residue */ |
|
if(s->encoding || !( s->msmpeg4_version || s->codec_id==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_CODEC_ID_MPEG2VIDEO |
|
|| (s->codec_id==AV_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 != AV_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==AV_CODEC_ID_MPEG1VIDEO || s->codec_id==AV_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->hdsp.put_pixels_tab[0][0](s->dest[0], dest_y , linesize,16); |
|
s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[1], dest_cb, uvlinesize,16 >> s->chroma_y_shift); |
|
s->hdsp.put_pixels_tab[s->chroma_x_shift][0](s->dest[2], dest_cr, uvlinesize,16 >> s->chroma_y_shift); |
|
} |
|
} |
|
} |
|
|
|
void ff_MPV_decode_mb(MpegEncContext *s, int16_t block[12][64]){ |
|
#if !CONFIG_SMALL |
|
if(s->out_format == FMT_MPEG1) { |
|
MPV_decode_mb_internal(s, block, 1); |
|
} else |
|
#endif |
|
MPV_decode_mb_internal(s, block, 0); |
|
} |
|
|
|
void ff_mpeg_draw_horiz_band(MpegEncContext *s, int y, int h) |
|
{ |
|
ff_draw_horiz_band(s->avctx, s->current_picture.f, |
|
s->last_picture.f, y, h, s->picture_structure, |
|
s->first_field, s->low_delay); |
|
} |
|
|
|
void ff_init_block_index(MpegEncContext *s){ //FIXME maybe rename |
|
const int linesize = s->current_picture.f->linesize[0]; //not s->linesize as this would be wrong for field pics |
|
const int uvlinesize = s->current_picture.f->linesize[1]; |
|
const int mb_size= 4; |
|
|
|
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.f->data[0] + ((s->mb_x - 1) << mb_size); |
|
s->dest[1] = s->current_picture.f->data[1] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
|
s->dest[2] = s->current_picture.f->data[2] + ((s->mb_x - 1) << (mb_size - s->chroma_x_shift)); |
|
|
|
if(!(s->pict_type==AV_PICTURE_TYPE_B && 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)); |
|
} |
|
} |
|
} |
|
|
|
/** |
|
* Permute an 8x8 block. |
|
* @param block the block which will be permuted according to the given permutation vector |
|
* @param permutation the permutation vector |
|
* @param last the last non zero coefficient in scantable order, used to speed the permutation up |
|
* @param scantable the used scantable, this is only used to speed the permutation up, the block is not |
|
* (inverse) permutated to scantable order! |
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*/ |
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void ff_block_permute(int16_t *block, uint8_t *permutation, const uint8_t *scantable, int last) |
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{ |
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int i; |
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int16_t temp[64]; |
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if(last<=0) return; |
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//if(permutation[1]==1) return; //FIXME it is ok but not clean and might fail for some permutations |
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for(i=0; i<=last; i++){ |
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const int j= scantable[i]; |
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temp[j]= block[j]; |
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block[j]=0; |
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} |
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for(i=0; i<=last; i++){ |
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const int j= scantable[i]; |
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const int perm_j= permutation[j]; |
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block[perm_j]= temp[j]; |
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} |
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} |
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|
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void ff_mpeg_flush(AVCodecContext *avctx){ |
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int i; |
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MpegEncContext *s = avctx->priv_data; |
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|
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if(s==NULL || s->picture==NULL) |
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return; |
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for (i = 0; i < MAX_PICTURE_COUNT; i++) |
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ff_mpeg_unref_picture(s, &s->picture[i]); |
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s->current_picture_ptr = s->last_picture_ptr = s->next_picture_ptr = NULL; |
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|
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ff_mpeg_unref_picture(s, &s->current_picture); |
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ff_mpeg_unref_picture(s, &s->last_picture); |
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ff_mpeg_unref_picture(s, &s->next_picture); |
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s->mb_x= s->mb_y= 0; |
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s->parse_context.state= -1; |
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s->parse_context.frame_start_found= 0; |
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s->parse_context.overread= 0; |
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s->parse_context.overread_index= 0; |
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s->parse_context.index= 0; |
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s->parse_context.last_index= 0; |
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s->bitstream_buffer_size=0; |
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s->pp_time=0; |
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} |
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|
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/** |
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* set qscale and update qscale dependent variables. |
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*/ |
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void ff_set_qscale(MpegEncContext * s, int qscale) |
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{ |
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if (qscale < 1) |
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qscale = 1; |
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else if (qscale > 31) |
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qscale = 31; |
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s->qscale = qscale; |
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s->chroma_qscale= s->chroma_qscale_table[qscale]; |
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s->y_dc_scale= s->y_dc_scale_table[ qscale ]; |
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s->c_dc_scale= s->c_dc_scale_table[ s->chroma_qscale ]; |
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} |
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void ff_MPV_report_decode_progress(MpegEncContext *s) |
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{ |
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if (s->pict_type != AV_PICTURE_TYPE_B && !s->partitioned_frame && !s->er.error_occurred) |
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ff_thread_report_progress(&s->current_picture_ptr->tf, s->mb_y, 0); |
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} |
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#if CONFIG_ERROR_RESILIENCE |
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void ff_mpeg_set_erpic(ERPicture *dst, Picture *src) |
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{ |
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int i; |
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|
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if (!src) |
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return; |
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dst->f = src->f; |
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dst->tf = &src->tf; |
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for (i = 0; i < 2; i++) { |
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dst->motion_val[i] = src->motion_val[i]; |
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dst->ref_index[i] = src->ref_index[i]; |
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} |
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dst->mb_type = src->mb_type; |
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dst->field_picture = src->field_picture; |
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} |
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|
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void ff_mpeg_er_frame_start(MpegEncContext *s) |
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{ |
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ERContext *er = &s->er; |
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|
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ff_mpeg_set_erpic(&er->cur_pic, s->current_picture_ptr); |
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ff_mpeg_set_erpic(&er->next_pic, s->next_picture_ptr); |
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ff_mpeg_set_erpic(&er->last_pic, s->last_picture_ptr); |
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er->pp_time = s->pp_time; |
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er->pb_time = s->pb_time; |
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er->quarter_sample = s->quarter_sample; |
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er->partitioned_frame = s->partitioned_frame; |
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|
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ff_er_frame_start(er); |
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} |
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#endif /* CONFIG_ERROR_RESILIENCE */
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