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