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47 lines
1.5 KiB
47 lines
1.5 KiB
/* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License along |
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* with FFmpeg; if not, write to the Free Software Foundation, Inc., |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
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*/ |
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#ifndef AVFILTER_QP_TABLE_H |
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#define AVFILTER_QP_TABLE_H |
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#include <stdint.h> |
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#include "libavutil/frame.h" |
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#include "libavutil/video_enc_params.h" |
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/** |
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* Extract a libpostproc-compatible QP table - an 8-bit QP value per 16x16 |
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* macroblock, stored in raster order - from AVVideoEncParams side data. |
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*/ |
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int ff_qp_table_extract(AVFrame *frame, int8_t **table, int *table_w, int *table_h, |
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enum AVVideoEncParamsType *qscale_type); |
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/** |
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* Normalize the qscale factor |
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* FIXME Add support for other values of enum AVVideoEncParamsType |
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* besides AV_VIDEO_ENC_PARAMS_MPEG2. |
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*/ |
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static inline int ff_norm_qscale(int qscale, enum AVVideoEncParamsType type) |
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{ |
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switch (type) { |
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case AV_VIDEO_ENC_PARAMS_MPEG2: return qscale >> 1; |
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} |
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return qscale; |
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} |
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#endif // AVFILTER_QP_TABLE_H
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