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generated by cgit v1.2.3 (git 2.39.1) at 2026-05-26 02:12:08 +0000
id='n5' href='#n5'>5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 
/*
 * section and descriptor parser
 *
 * Copyright (C) 2005 Kenneth Aafloy (kenneth@linuxtv.org)
 * Copyright (C) 2005 Andrew de Quincey (adq_dvb@lidskialf.net)
 *
 * This library 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.
 *
 * This library 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 this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#ifndef _UCSI_MPEG_TARGET_BACKGROUND_GRID_DESCRIPTOR
#define _UCSI_MPEG_TARGET_BACKGROUND_GRID_DESCRIPTOR 1

#ifdef __cplusplus
extern "C"
{
#endif

#include <libucsi/descriptor.h>
#include <libucsi/endianops.h>

/**
 * mpeg_target_background_grid_descriptor structure.
 */
struct mpeg_target_background_grid_descriptor {
	struct descriptor d;

  EBIT3(uint32_t horizontal_size		: 14; ,
	uint32_t vertical_size			: 14; ,
	uint32_t aspect_ratio_information	: 4;  );
} __ucsi_packed;

/**
 * Process an mpeg_target_background_grid_descriptor structure.
 *
 * @param d Pointer to the generic descriptor structure.
 * @return Pointer to the mpeg_target_background_grid_descriptor structure, or
 * NULL on error.
 */
static inline struct mpeg_target_background_grid_descriptor*
	mpeg_target_background_grid_descriptor_codec(struct descriptor* d)
{
	if (d->len != (sizeof(struct mpeg_target_background_grid_descriptor) - 2))
		return NULL;

	bswap32((uint8_t*) d + 2);

	return (struct mpeg_target_background_grid_descriptor*) d;
}

#ifdef __cplusplus
}
#endif

#endif