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