/* * Copyright (C) 2007 Marco Gerards <marco@gnu.org> * Copyright (C) 2009 David Conrad * * 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 */ #ifndef AVCODEC_DIRAC_H #define AVCODEC_DIRAC_H /** * @file * Interface to Dirac Decoder/Encoder * @author Marco Gerards <marco@gnu.org> */ #include "avcodec.h" typedef struct AVDiracSeqHeader { 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[] int profile; int level; AVRational framerate; AVRational sample_aspect_ratio; enum AVPixelFormat pix_fmt; enum AVColorRange color_range; enum AVColorPrimaries color_primaries; enum AVColorTransferCharacteristic color_trc; enum AVColorSpace colorspace; } AVDiracSeqHeader; /** * Parse a Dirac sequence header. * * @param dsh this function will allocate and fill an AVDiracSeqHeader struct * and write it into this pointer. The caller must free it with * av_free(). * @param buf the data buffer * @param buf_size the size of the data buffer in bytes * @param log_ctx if non-NULL, this function will log errors here * @return 0 on success, a negative AVERROR code on failure */ int av_dirac_parse_sequence_header(AVDiracSeqHeader **dsh, const uint8_t *buf, size_t buf_size, void *log_ctx); #endif /* AVCODEC_DIRAC_H */