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Reorganise SPA tree

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Reorganise the SPA includes to make it more extensible later
Simplify the naming of the buffer and meta params
This commit is contained in:
Wim Taymans 2017-11-10 13:36:14 +01:00
parent 58451d626c
commit caaeaff223
151 changed files with 1353 additions and 964 deletions
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114
spa/include/spa/buffer/meta.h Normal file
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/* Simple Plugin API
* Copyright (C) 2017 Wim Taymans <wim.taymans@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __SPA_META_H__
#define __SPA_META_H__
#ifdef __cplusplus
extern "C" {
#endif
#include <spa/utils/defs.h>
#include <spa/utils/ringbuffer.h>
#include <spa/support/type-map.h>
/** \page page_meta Metadata
*
* Metadata contains extra information on a buffer.
*/
#define SPA_TYPE__Meta SPA_TYPE_POINTER_BASE "Meta"
#define SPA_TYPE_META_BASE SPA_TYPE__Meta ":"
#define SPA_TYPE_META__Header SPA_TYPE_META_BASE "Header"
#define SPA_TYPE_META__Pointer SPA_TYPE_META_BASE "Pointer"
#define SPA_TYPE_META__VideoCrop SPA_TYPE_META_BASE "VideoCrop"
#define SPA_TYPE_META__Ringbuffer SPA_TYPE_META_BASE "Ringbuffer"
#define SPA_TYPE_META__Shared SPA_TYPE_META_BASE "Shared"
struct spa_type_meta {
uint32_t Header;
uint32_t Pointer;
uint32_t VideoCrop;
uint32_t Ringbuffer;
uint32_t Shared;
};
static inline void spa_type_meta_map(struct spa_type_map *map, struct spa_type_meta *type)
{
if (type->Header == 0) {
type->Header = spa_type_map_get_id(map, SPA_TYPE_META__Header);
type->Pointer = spa_type_map_get_id(map, SPA_TYPE_META__Pointer);
type->VideoCrop = spa_type_map_get_id(map, SPA_TYPE_META__VideoCrop);
type->Ringbuffer = spa_type_map_get_id(map, SPA_TYPE_META__Ringbuffer);
type->Shared = spa_type_map_get_id(map, SPA_TYPE_META__Shared);
}
}
/** Describes essential buffer header metadata */
struct spa_meta_header {
#define SPA_META_HEADER_FLAG_DISCONT (1 << 0) /**< data is not continous with previous buffer */
#define SPA_META_HEADER_FLAG_CORRUPTED (1 << 1) /**< data might be corrupted */
#define SPA_META_HEADER_FLAG_MARKER (1 << 2) /**< media specific marker */
#define SPA_META_HEADER_FLAG_HEADER (1 << 3) /**< data contains a codec specific header */
#define SPA_META_HEADER_FLAG_GAP (1 << 4) /**< data contains media neutral data */
#define SPA_META_HEADER_FLAG_DELTA_UNIT (1 << 5) /**< cannot be decoded independently */
uint32_t flags; /**< flags */
uint32_t seq; /**< sequence number, increments with a
* media specific frequency */
int64_t pts; /**< presentation timestamp */
int64_t dts_offset; /**< decoding timestamp and a difference with pts */
};
/** Pointer metadata */
struct spa_meta_pointer {
uint32_t type; /**< the pointer type */
void *ptr; /**< the pointer */
};
/** Video cropping metadata */
struct spa_meta_video_crop {
int32_t x, y; /**< x and y offsets */
int32_t width, height; /**< width and height */
};
/** Ringbuffer metadata */
struct spa_meta_ringbuffer {
struct spa_ringbuffer ringbuffer; /**< the ringbuffer */
};
/** Describes the shared memory of a buffer is stored */
struct spa_meta_shared {
int32_t flags; /**< flags */
int fd; /**< file descriptor of memory */
int32_t offset; /**< offset in memory */
uint32_t size; /**< size of memory */
};
/** A metadata element */
struct spa_meta {
uint32_t type; /**< metadata type */
void *data; /**< pointer to metadata */
uint32_t size; /**< size of metadata */
};
#ifdef __cplusplus
} /* extern "C" */
#endif
#endif /* __SPA_META_H__ */