/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Broadcom BM2835 V4L2 driver
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*
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* Copyright © 2013 Raspberry Pi (Trading) Ltd.
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*
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* Authors: Vincent Sanders <vincent.sanders@collabora.co.uk>
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* Dave Stevenson <dsteve@broadcom.com>
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* Simon Mellor <simellor@broadcom.com>
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* Luke Diamand <luked@broadcom.com>
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*/
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#ifndef MMAL_MSG_FORMAT_H
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#define MMAL_MSG_FORMAT_H
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#include "mmal-msg-common.h"
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/* MMAL_ES_FORMAT_T */
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struct mmal_audio_format {
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u32 channels; /**< Number of audio channels */
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u32 sample_rate; /**< Sample rate */
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u32 bits_per_sample; /**< Bits per sample */
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u32 block_align; /**< Size of a block of data */
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};
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struct mmal_video_format {
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u32 width; /**< Width of frame in pixels */
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u32 height; /**< Height of frame in rows of pixels */
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struct mmal_rect crop; /**< Visible region of the frame */
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struct mmal_rational frame_rate; /**< Frame rate */
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struct mmal_rational par; /**< Pixel aspect ratio */
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/* FourCC specifying the color space of the video stream. See the
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* \ref MmalColorSpace "pre-defined color spaces" for some examples.
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*/
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u32 color_space;
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};
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struct mmal_subpicture_format {
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u32 x_offset;
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u32 y_offset;
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};
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union mmal_es_specific_format {
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struct mmal_audio_format audio;
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struct mmal_video_format video;
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struct mmal_subpicture_format subpicture;
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};
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/** Definition of an elementary stream format (MMAL_ES_FORMAT_T) */
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struct mmal_es_format_local {
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u32 type; /* enum mmal_es_type */
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u32 encoding; /* FourCC specifying encoding of the elementary stream.*/
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u32 encoding_variant; /* FourCC specifying the specific
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* encoding variant of the elementary
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* stream.
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*/
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union mmal_es_specific_format *es; /* Type specific
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* information for the
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* elementary stream
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*/
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u32 bitrate; /**< Bitrate in bits per second */
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u32 flags; /**< Flags describing properties of the elementary stream. */
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u32 extradata_size; /**< Size of the codec specific data */
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u8 *extradata; /**< Codec specific data */
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};
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/** Remote definition of an elementary stream format (MMAL_ES_FORMAT_T) */
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struct mmal_es_format {
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u32 type; /* enum mmal_es_type */
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u32 encoding; /* FourCC specifying encoding of the elementary stream.*/
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u32 encoding_variant; /* FourCC specifying the specific
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* encoding variant of the elementary
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* stream.
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*/
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u32 es; /* Type specific
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* information for the
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* elementary stream
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*/
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u32 bitrate; /**< Bitrate in bits per second */
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u32 flags; /**< Flags describing properties of the elementary stream. */
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u32 extradata_size; /**< Size of the codec specific data */
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u32 extradata; /**< Codec specific data */
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};
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#endif /* MMAL_MSG_FORMAT_H */
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