From e481458bc308ee838deaeacac51929514762e7a7 Mon Sep 17 00:00:00 2001 From: Anton Khirnov Date: Mon, 21 Mar 2016 16:14:31 +0100 Subject: h264: factor out pred weight table parsing into a separate file This will allow decoupling the parser from the decoder. --- libavcodec/h264_parse.h | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libavcodec/h264_parse.h (limited to 'libavcodec/h264_parse.h') diff --git a/libavcodec/h264_parse.h b/libavcodec/h264_parse.h new file mode 100644 index 0000000000..7bdce04a3b --- /dev/null +++ b/libavcodec/h264_parse.h @@ -0,0 +1,48 @@ +/* + * This file is part of Libav. + * + * Libav is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * Libav 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with Libav; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * H.264 decoder/parser shared code + */ + +#ifndef AVCODEC_H264_PARSE_H +#define AVCODEC_H264_PARSE_H + +#include "get_bits.h" + +typedef struct H264PredWeightTable { + int use_weight; + int use_weight_chroma; + int luma_log2_weight_denom; + int chroma_log2_weight_denom; + int luma_weight_flag[2]; ///< 7.4.3.2 luma_weight_lX_flag + int chroma_weight_flag[2]; ///< 7.4.3.2 chroma_weight_lX_flag + // The following 2 can be changed to int8_t but that causes 10cpu cycles speedloss + int luma_weight[48][2][2]; + int chroma_weight[48][2][2][2]; + int implicit_weight[48][48][2]; +} H264PredWeightTable; + +struct SPS; + +int ff_h264_pred_weight_table(GetBitContext *gb, const struct SPS *sps, + const int *ref_count, int slice_type_nos, + H264PredWeightTable *pwt); + +#endif /* AVCODEC_H264_PARSE_H */ -- cgit v1.2.3