From 66b0255248d7a59d24eaf596312e7f14fb7d2cf3 Mon Sep 17 00:00:00 2001 From: David Conrad Date: Mon, 11 Jan 2010 00:31:44 +0000 Subject: Add a function to parse Dirac's sequence header Originally committed as revision 21127 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/dirac.h | 57 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 libavcodec/dirac.h (limited to 'libavcodec/dirac.h') diff --git a/libavcodec/dirac.h b/libavcodec/dirac.h new file mode 100644 index 0000000000..5a53bd431e --- /dev/null +++ b/libavcodec/dirac.h @@ -0,0 +1,57 @@ +/* + * Copyright (C) 2007 Marco Gerards + * Copyright (C) 2009 David Conrad + * + * This file is part of FFmpeg. + * + * FFmpeg 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. + * + * 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser 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 + */ + +#ifndef AVCODEC_DIRAC_H +#define AVCODEC_DIRAC_H + +/** + * @file libavcodec/dirac.h + * Interfaces to Dirac Decoder/Encoder + * @author Marco Gerards + */ + +#include "avcodec.h" +#include "get_bits.h" + +typedef struct { + unsigned width; + unsigned height; + uint8_t chroma_format; ///< 0: 444 1: 422 2: 420 + + uint8_t interlaced; + uint8_t top_field_first; + + uint8_t frame_rate_index; ///< index into dirac_frame_rate[] + uint8_t aspect_ratio_index; ///< index into dirac_aspect_ratio[] + + uint16_t clean_width; + uint16_t clean_height; + uint16_t clean_left_offset; + uint16_t clean_right_offset; + + uint8_t pixel_range_index; ///< index into dirac_pixel_range_presets[] + uint8_t color_spec_index; ///< index into dirac_color_spec_presets[] +} dirac_source_params; + +int ff_dirac_parse_sequence_header(AVCodecContext *avctx, GetBitContext *gb, + dirac_source_params *source); + +#endif /* AVCODEC_DIRAC_H */ -- cgit v1.2.3