Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

4 files changed, 733 insertions, 0 deletions

diff --git a/third_party/pipewire/spa/buffer/alloc.h b/third_party/pipewire/spa/buffer/alloc.h
new file mode 100644
index 0000000000..6417073838
--- /dev/null
+++ b/third_party/pipewire/spa/buffer/alloc.h
@@ -0,0 +1,346 @@
+/* Simple Plugin API
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+#ifndef SPA_BUFFER_ALLOC_H
+#define SPA_BUFFER_ALLOC_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/buffer/buffer.h>
+
+/**
+ * \addtogroup spa_buffer
+ * \{
+ */
+
+/** information about the buffer layout */
+struct spa_buffer_alloc_info {
+#define SPA_BUFFER_ALLOC_FLAG_INLINE_META	(1<<0)	/**< add metadata data in the skeleton */
+#define SPA_BUFFER_ALLOC_FLAG_INLINE_CHUNK	(1<<1)	/**< add chunk data in the skeleton */
+#define SPA_BUFFER_ALLOC_FLAG_INLINE_DATA	(1<<2)	/**< add buffer data to the skeleton */
+#define SPA_BUFFER_ALLOC_FLAG_INLINE_ALL	0b111
+#define SPA_BUFFER_ALLOC_FLAG_NO_DATA		(1<<3)	/**< don't set data pointers */
+	uint32_t flags;
+	uint32_t max_align;	/**< max of all alignments */
+	uint32_t n_metas;
+	uint32_t n_datas;
+	struct spa_meta *metas;
+	struct spa_data *datas;
+	uint32_t *data_aligns;
+	size_t skel_size;	/**< size of the struct spa_buffer and inlined meta/chunk/data */
+	size_t meta_size;	/**< size of the meta if not inlined */
+	size_t chunk_size;	/**< size of the chunk if not inlined */
+	size_t data_size;	/**< size of the data if not inlined */
+	size_t mem_size;	/**< size of the total memory if not inlined */
+};
+
+/**
+ * Fill buffer allocation information
+ *
+ * Fill \a info with allocation information needed to allocate buffers
+ * with the given number of metadata and data members.
+ *
+ * The required size of the skeleton (the struct spa_buffer) information
+ * and the memory (for the metadata, chunk and buffer memory) will be
+ * calculated.
+ *
+ * The flags member in \a info should be configured before calling this
+ * functions.
+ *
+ * \param info the information to fill
+ * \param n_metas the number of metadatas for the buffer
+ * \param metas an array of metadata items
+ * \param n_datas the number of datas for the buffer
+ * \param datas an array of \a n_datas items
+ * \param data_aligns \a n_datas alignments
+ * \return 0 on success.
+ * */
+static inline int spa_buffer_alloc_fill_info(struct spa_buffer_alloc_info *info,
+					     uint32_t n_metas, struct spa_meta metas[],
+					     uint32_t n_datas, struct spa_data datas[],
+					     uint32_t data_aligns[])
+{
+	size_t size, *target;
+	uint32_t i;
+
+	info->n_metas = n_metas;
+	info->metas = metas;
+	info->n_datas = n_datas;
+	info->datas = datas;
+	info->data_aligns = data_aligns;
+	info->max_align = 16;
+	info->mem_size = 0;
+	/*
+	 * The buffer skeleton is placed in memory like below and can
+	 * be accessed as a regular structure.
+	 *
+	 *      +==============================+
+	 *      | struct spa_buffer            |
+	 *      |   uint32_t n_metas           | number of metas
+	 *      |   uint32_t n_datas           | number of datas
+	 *    +-|   struct spa_meta *metas     | pointer to array of metas
+	 *   +|-|   struct spa_data *datas     | pointer to array of datas
+	 *   || +------------------------------+
+	 *   |+>| struct spa_meta              |
+	 *   |  |   uint32_t type              | metadata
+	 *   |  |   uint32_t size              | size of metadata
+	 *  +|--|   void *data                 | pointer to metadata
+	 *  ||  | ... <n_metas>                | more spa_meta follow
+	 *  ||  +------------------------------+
+	 *  |+->| struct spa_data              |
+	 *  |   |   uint32_t type              | memory type
+	 *  |   |   uint32_t flags             |
+	 *  |   |   int fd                     | fd of shared memory block
+	 *  |   |   uint32_t mapoffset         | offset in shared memory of data
+	 *  |   |   uint32_t maxsize           | size of data block
+	 *  | +-|   void *data                 | pointer to data
+	 *  |+|-|   struct spa_chunk *chunk    | pointer to chunk
+	 *  ||| | ... <n_datas>                | more spa_data follow
+	 *  ||| +==============================+
+	 *  VVV
+	 *
+	 * metadata, chunk and memory can either be placed right
+	 * after the skeleton (inlined) or in a separate piece of memory.
+	 *
+	 *  vvv
+	 *  ||| +==============================+
+	 *  +-->| meta data memory             | metadata memory, 8 byte aligned
+	 *   || | ... <n_metas>                |
+	 *   || +------------------------------+
+	 *   +->| struct spa_chunk             | memory for n_datas chunks
+	 *    | |   uint32_t offset            |
+	 *    | |   uint32_t size              |
+	 *    | |   int32_t stride             |
+	 *    | |   int32_t dummy              |
+	 *    | | ... <n_datas> chunks         |
+	 *    | +------------------------------+
+	 *    +>| data                         | memory for n_datas data, aligned
+	 *      | ... <n_datas> blocks         | according to alignments
+	 *      +==============================+
+	 */
+	info->skel_size = sizeof(struct spa_buffer);
+        info->skel_size += n_metas * sizeof(struct spa_meta);
+        info->skel_size += n_datas * sizeof(struct spa_data);
+
+	for (i = 0, size = 0; i < n_metas; i++)
+		size += SPA_ROUND_UP_N(metas[i].size, 8);
+	info->meta_size = size;
+
+	if (SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_META))
+		target = &info->skel_size;
+	else
+		target = &info->mem_size;
+	*target += info->meta_size;
+
+	info->chunk_size = n_datas * sizeof(struct spa_chunk);
+	if (SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_CHUNK))
+		target = &info->skel_size;
+	else
+	        target = &info->mem_size;
+	*target += info->chunk_size;
+
+	for (i = 0, size = 0; i < n_datas; i++) {
+		info->max_align = SPA_MAX(info->max_align, data_aligns[i]);
+		size = SPA_ROUND_UP_N(size, data_aligns[i]);
+		size += datas[i].maxsize;
+	}
+	info->data_size = size;
+
+	if (!SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_NO_DATA) &&
+	    SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_DATA))
+		target = &info->skel_size;
+	else
+		target = &info->mem_size;
+
+	*target = SPA_ROUND_UP_N(*target, n_datas ? data_aligns[0] : 1);
+	*target += info->data_size;
+	*target = SPA_ROUND_UP_N(*target, info->max_align);
+
+	return 0;
+}
+
+/**
+ * Fill skeleton and data according to the allocation info
+ *
+ * Use the allocation info to create a struct \ref spa_buffer into
+ * \a skel_mem and \a data_mem.
+ *
+ * Depending on the flags given when calling \ref
+ * spa_buffer_alloc_fill_info(), the buffer meta, chunk and memory
+ * will be referenced in either skel_mem or data_mem.
+ *
+ * \param info an allocation info
+ * \param skel_mem memory to hold the struct \ref spa_buffer and the
+ *  pointers to meta, chunk and memory.
+ * \param data_mem memory to hold the meta, chunk and memory
+ * \return a struct \ref spa_buffer in \a skel_mem
+ */
+static inline struct spa_buffer *
+spa_buffer_alloc_layout(struct spa_buffer_alloc_info *info,
+			void *skel_mem, void *data_mem)
+{
+	struct spa_buffer *b = (struct spa_buffer*)skel_mem;
+	size_t size;
+	uint32_t i;
+	void **dp, *skel, *data;
+	struct spa_chunk *cp;
+
+	b->n_metas = info->n_metas;
+	b->metas = SPA_PTROFF(b, sizeof(struct spa_buffer), struct spa_meta);
+	b->n_datas = info->n_datas;
+	b->datas = SPA_PTROFF(b->metas, info->n_metas * sizeof(struct spa_meta), struct spa_data);
+
+	skel = SPA_PTROFF(b->datas, info->n_datas * sizeof(struct spa_data), void);
+	data = data_mem;
+
+	if (SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_META))
+		dp = &skel;
+	else
+		dp = &data;
+
+	for (i = 0; i < info->n_metas; i++) {
+		struct spa_meta *m = &b->metas[i];
+		*m = info->metas[i];
+		m->data = *dp;
+		*dp = SPA_PTROFF(*dp, SPA_ROUND_UP_N(m->size, 8), void);
+	}
+
+	size = info->n_datas * sizeof(struct spa_chunk);
+	if (SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_CHUNK)) {
+		cp = (struct spa_chunk*)skel;
+		skel = SPA_PTROFF(skel, size, void);
+	}
+	else {
+		cp = (struct spa_chunk*)data;
+		data = SPA_PTROFF(data, size, void);
+	}
+
+	if (SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_INLINE_DATA))
+		dp = &skel;
+	else
+		dp = &data;
+
+	for (i = 0; i < info->n_datas; i++) {
+		struct spa_data *d = &b->datas[i];
+
+		*d = info->datas[i];
+		d->chunk = &cp[i];
+		if (!SPA_FLAG_IS_SET(info->flags, SPA_BUFFER_ALLOC_FLAG_NO_DATA)) {
+			*dp = SPA_PTR_ALIGN(*dp, info->data_aligns[i], void);
+			d->data = *dp;
+			*dp = SPA_PTROFF(*dp, d->maxsize, void);
+		}
+	}
+	return b;
+}
+
+/**
+ * Layout an array of buffers
+ *
+ * Use the allocation info to layout the memory of an array of buffers.
+ *
+ * \a skel_mem should point to at least info->skel_size * \a n_buffers bytes
+ * of memory.
+ * \a data_mem should point to at least info->mem_size * \a n_buffers bytes
+ * of memory.
+ *
+ * \param info the allocation info for one buffer
+ * \param n_buffers the number of buffers to create
+ * \param buffers a array with space to hold \a n_buffers pointers to buffers
+ * \param skel_mem memory for the struct \ref spa_buffer
+ * \param data_mem memory for the meta, chunk, memory of the buffer if not
+ *		inlined in the skeleton.
+ * \return 0 on success.
+ *
+ */
+static inline int
+spa_buffer_alloc_layout_array(struct spa_buffer_alloc_info *info,
+			      uint32_t n_buffers, struct spa_buffer *buffers[],
+			      void *skel_mem, void *data_mem)
+{
+	uint32_t i;
+	for (i = 0; i < n_buffers; i++) {
+		buffers[i] = spa_buffer_alloc_layout(info, skel_mem, data_mem);
+		skel_mem = SPA_PTROFF(skel_mem, info->skel_size, void);
+		data_mem = SPA_PTROFF(data_mem, info->mem_size, void);
+        }
+	return 0;
+}
+
+/**
+ * Allocate an array of buffers
+ *
+ * Allocate \a n_buffers with the given metadata, memory and alignment
+ * information.
+ *
+ * The buffer array, structures, data and metadata will all be allocated
+ * in one block of memory with the proper requested alignment.
+ *
+ * \param n_buffers the number of buffers to create
+ * \param flags extra flags
+ * \param n_metas number of metadatas
+ * \param metas \a n_metas metadata specification
+ * \param n_datas number of datas
+ * \param datas \a n_datas memory specification
+ * \param data_aligns \a n_datas alignment specifications
+ * \returns an array of \a n_buffers pointers to struct \ref spa_buffer
+ *     with the given metadata, data and alignment or NULL when
+ *     allocation failed.
+ *
+ */
+static inline struct spa_buffer **
+spa_buffer_alloc_array(uint32_t n_buffers, uint32_t flags,
+		       uint32_t n_metas, struct spa_meta metas[],
+		       uint32_t n_datas, struct spa_data datas[],
+		       uint32_t data_aligns[])
+{
+
+	struct spa_buffer **buffers;
+	struct spa_buffer_alloc_info info = { flags | SPA_BUFFER_ALLOC_FLAG_INLINE_ALL, };
+	void *skel;
+
+	spa_buffer_alloc_fill_info(&info, n_metas, metas, n_datas, datas, data_aligns);
+
+	buffers = (struct spa_buffer **)calloc(1, info.max_align +
+			n_buffers * (sizeof(struct spa_buffer *) + info.skel_size));
+	if (buffers == NULL)
+		return NULL;
+
+	skel = SPA_PTROFF(buffers, sizeof(struct spa_buffer *) * n_buffers, void);
+	skel = SPA_PTR_ALIGN(skel, info.max_align, void);
+
+	spa_buffer_alloc_layout_array(&info, n_buffers, buffers, skel, NULL);
+
+	return buffers;
+}
+
+/**
+ * \}
+ */
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* SPA_BUFFER_ALLOC_H */
diff --git a/third_party/pipewire/spa/buffer/buffer.h b/third_party/pipewire/spa/buffer/buffer.h
new file mode 100644
index 0000000000..47204acbcf
--- /dev/null
+++ b/third_party/pipewire/spa/buffer/buffer.h
@@ -0,0 +1,131 @@
+/* Simple Plugin API
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SPA_BUFFER_H
+#define SPA_BUFFER_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/utils/defs.h>
+#include <spa/buffer/meta.h>
+
+/** \defgroup spa_buffer Buffers
+ *
+ * Buffers describe the data and metadata that is exchanged between
+ * ports of a node.
+ */
+
+/**
+ * \addtogroup spa_buffer
+ * \{
+ */
+
+enum spa_data_type {
+	SPA_DATA_Invalid,
+	SPA_DATA_MemPtr,		/**< pointer to memory, the data field in
+					  *  struct spa_data is set. */
+	SPA_DATA_MemFd,			/**< generic fd, mmap to get to memory */
+	SPA_DATA_DmaBuf,		/**< fd to dmabuf memory */
+	SPA_DATA_MemId,			/**< memory is identified with an id */
+
+	_SPA_DATA_LAST,			/**< not part of ABI */
+};
+
+/** Chunk of memory, can change for each buffer */
+struct spa_chunk {
+	uint32_t offset;		/**< offset of valid data. Should be taken
+					  *  modulo the data maxsize to get the offset
+					  *  in the data memory. */
+	uint32_t size;			/**< size of valid data. Should be clamped to
+					  *  maxsize. */
+	int32_t stride;			/**< stride of valid data */
+#define SPA_CHUNK_FLAG_NONE		0
+#define SPA_CHUNK_FLAG_CORRUPTED	(1u<<0)	/**< chunk data is corrupted in some way */
+#define SPA_CHUNK_FLAG_EMPTY		(1u<<1)	/**< chunk data is empty with media specific
+						  *  neutral data such as silence or black. This
+						  *  could be used to optimize processing. */
+	int32_t flags;			/**< chunk flags */
+};
+
+/** Data for a buffer this stays constant for a buffer */
+struct spa_data {
+	uint32_t type;			/**< memory type, one of enum spa_data_type, when
+					  *  allocating memory, the type contains a bitmask
+					  *  of allowed types. SPA_ID_INVALID is a special
+					  *  value for the allocator to indicate that the
+					  *  other side did not explicitly specify any
+					  *  supported data types. It should probably use
+					  *  a memory type that does not require special
+					  *  handling in addition to simple mmap/munmap. */
+#define SPA_DATA_FLAG_NONE	 0
+#define SPA_DATA_FLAG_READABLE	(1u<<0)	/**< data is readable */
+#define SPA_DATA_FLAG_WRITABLE	(1u<<1)	/**< data is writable */
+#define SPA_DATA_FLAG_DYNAMIC	(1u<<2)	/**< data pointer can be changed */
+#define SPA_DATA_FLAG_READWRITE	(SPA_DATA_FLAG_READABLE|SPA_DATA_FLAG_WRITABLE)
+	uint32_t flags;			/**< data flags */
+	int64_t fd;			/**< optional fd for data */
+	uint32_t mapoffset;		/**< offset to map fd at */
+	uint32_t maxsize;		/**< max size of data */
+	void *data;			/**< optional data pointer */
+	struct spa_chunk *chunk;	/**< valid chunk of memory */
+};
+
+/** A Buffer */
+struct spa_buffer {
+	uint32_t n_metas;		/**< number of metadata */
+	uint32_t n_datas;		/**< number of data members */
+	struct spa_meta *metas;		/**< array of metadata */
+	struct spa_data *datas;		/**< array of data members */
+};
+
+/** Find metadata in a buffer */
+static inline struct spa_meta *spa_buffer_find_meta(const struct spa_buffer *b, uint32_t type)
+{
+	uint32_t i;
+
+	for (i = 0; i < b->n_metas; i++)
+		if (b->metas[i].type == type)
+			return &b->metas[i];
+
+	return NULL;
+}
+
+static inline void *spa_buffer_find_meta_data(const struct spa_buffer *b, uint32_t type, size_t size)
+{
+	struct spa_meta *m;
+	if ((m = spa_buffer_find_meta(b, type)) && m->size >= size)
+		return m->data;
+	return NULL;
+}
+
+/**
+ * \}
+ */
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* SPA_BUFFER_H */
diff --git a/third_party/pipewire/spa/buffer/meta.h b/third_party/pipewire/spa/buffer/meta.h
new file mode 100644
index 0000000000..ae72ef970e
--- /dev/null
+++ b/third_party/pipewire/spa/buffer/meta.h
@@ -0,0 +1,163 @@
+/* Simple Plugin API
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SPA_META_H
+#define SPA_META_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/utils/defs.h>
+#include <spa/pod/pod.h>
+
+/**
+ * \addtogroup spa_buffer
+ * \{
+ */
+
+enum spa_meta_type {
+	SPA_META_Invalid,
+	SPA_META_Header,	/**< struct spa_meta_header */
+	SPA_META_VideoCrop,	/**< struct spa_meta_region with cropping data */
+	SPA_META_VideoDamage,	/**< array of struct spa_meta_region with damage, where an invalid entry or end-of-array marks the end. */
+	SPA_META_Bitmap,	/**< struct spa_meta_bitmap */
+	SPA_META_Cursor,	/**< struct spa_meta_cursor */
+	SPA_META_Control,	/**< metadata contains a spa_meta_control
+				  *  associated with the data */
+	SPA_META_Busy,		/**< don't write to buffer when count > 0 */
+
+	_SPA_META_LAST,		/**< not part of ABI/API */
+};
+
+/**
+ * A metadata element.
+ *
+ * This structure is available on the buffer structure and contains
+ * the type of the metadata and a pointer/size to the actual metadata
+ * itself.
+ */
+struct spa_meta {
+	uint32_t type;		/**< metadata type, one of enum spa_meta_type */
+	uint32_t size;		/**< size of metadata */
+	void *data;		/**< pointer to metadata */
+};
+
+#define spa_meta_first(m)	((m)->data)
+#define spa_meta_end(m)		SPA_PTROFF((m)->data,(m)->size,void)
+#define spa_meta_check(p,m)	(SPA_PTROFF(p,sizeof(*p),void) <= spa_meta_end(m))
+
+/**
+ * Describes essential buffer header metadata such as flags and
+ * timestamps.
+ */
+struct spa_meta_header {
+#define SPA_META_HEADER_FLAG_DISCONT	(1 << 0)	/**< data is not continuous 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 offset;			/**< offset in current cycle */
+	int64_t pts;				/**< presentation timestamp in nanoseconds */
+	int64_t dts_offset;			/**< decoding timestamp as a difference with pts */
+	uint64_t seq;				/**< sequence number, increments with a
+						  *  media specific frequency */
+};
+
+/** metadata structure for Region or an array of these for RegionArray */
+struct spa_meta_region {
+	struct spa_region region;
+};
+
+#define spa_meta_region_is_valid(m)	((m)->region.size.width != 0 && (m)->region.size.height != 0)
+
+/** iterate all the items in a metadata */
+#define spa_meta_for_each(pos,meta)					\
+	for (pos = (__typeof(pos))spa_meta_first(meta);			\
+	    spa_meta_check(pos, meta);					\
+            (pos)++)
+
+#define spa_meta_bitmap_is_valid(m)	((m)->format != 0)
+
+/**
+ * Bitmap information
+ *
+ * This metadata contains a bitmap image in the given format and size.
+ * It is typically used for cursor images or other small images that are
+ * better transferred inline.
+ */
+struct spa_meta_bitmap {
+	uint32_t format;		/**< bitmap video format, one of enum spa_video_format. 0 is
+					  *  and invalid format and should be handled as if there is
+					  *  no new bitmap information. */
+	struct spa_rectangle size;	/**< width and height of bitmap */
+	int32_t stride;			/**< stride of bitmap data */
+	uint32_t offset;		/**< offset of bitmap data in this structure. An offset of
+					  *  0 means no image data (invisible), an offset >=
+					  *  sizeof(struct spa_meta_bitmap) contains valid bitmap
+					  *  info. */
+};
+
+#define spa_meta_cursor_is_valid(m)	((m)->id != 0)
+
+/**
+ * Cursor information
+ *
+ * Metadata to describe the position and appearance of a pointing device.
+ */
+struct spa_meta_cursor {
+	uint32_t id;			/**< cursor id. an id of 0 is an invalid id and means that
+					  *  there is no new cursor data */
+	uint32_t flags;			/**< extra flags */
+	struct spa_point position;	/**< position on screen */
+	struct spa_point hotspot;	/**< offsets for hotspot in bitmap, this field has no meaning
+					  *  when there is no valid bitmap (see below) */
+	uint32_t bitmap_offset;		/**< offset of bitmap meta in this structure. When the offset
+					  *  is 0, there is no new bitmap information. When the offset is
+					  *  >= sizeof(struct spa_meta_cursor) there is a
+					  *  struct spa_meta_bitmap at the offset. */
+};
+
+/** a timed set of events associated with the buffer */
+struct spa_meta_control {
+	struct spa_pod_sequence sequence;
+};
+
+/** a busy counter for the buffer */
+struct spa_meta_busy {
+	uint32_t flags;
+	uint32_t count;			/**< number of users busy with the buffer */
+};
+
+/**
+ * \}
+ */
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* SPA_META_H */
diff --git a/third_party/pipewire/spa/buffer/type-info.h b/third_party/pipewire/spa/buffer/type-info.h
new file mode 100644
index 0000000000..50f436b864
--- /dev/null
+++ b/third_party/pipewire/spa/buffer/type-info.h
@@ -0,0 +1,93 @@
+/* Simple Plugin API
+ *
+ * Copyright © 2018 Wim Taymans
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef SPA_BUFFER_TYPES_H
+#define SPA_BUFFER_TYPES_H
+
+/**
+ * \addtogroup spa_buffer
+ * \{
+ */
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <spa/buffer/buffer.h>
+#include <spa/buffer/meta.h>
+#include <spa/utils/type.h>
+
+#define SPA_TYPE_INFO_Buffer			SPA_TYPE_INFO_POINTER_BASE "Buffer"
+#define SPA_TYPE_INFO_BUFFER_BASE		SPA_TYPE_INFO_Buffer ":"
+
+/** Buffers contain data of a certain type */
+#define SPA_TYPE_INFO_Data			SPA_TYPE_INFO_ENUM_BASE "Data"
+#define SPA_TYPE_INFO_DATA_BASE			SPA_TYPE_INFO_Data ":"
+
+/** base type for fd based memory */
+#define SPA_TYPE_INFO_DATA_Fd			SPA_TYPE_INFO_DATA_BASE "Fd"
+#define SPA_TYPE_INFO_DATA_FD_BASE		SPA_TYPE_INFO_DATA_Fd ":"
+
+static const struct spa_type_info spa_type_data_type[] = {
+	{ SPA_DATA_Invalid, SPA_TYPE_Int, SPA_TYPE_INFO_DATA_BASE "Invalid", NULL },
+	{ SPA_DATA_MemPtr, SPA_TYPE_Int, SPA_TYPE_INFO_DATA_BASE "MemPtr", NULL },
+	{ SPA_DATA_MemFd, SPA_TYPE_Int, SPA_TYPE_INFO_DATA_FD_BASE "MemFd", NULL },
+	{ SPA_DATA_DmaBuf, SPA_TYPE_Int, SPA_TYPE_INFO_DATA_FD_BASE "DmaBuf", NULL },
+	{ SPA_DATA_MemId, SPA_TYPE_Int, SPA_TYPE_INFO_DATA_BASE "MemId", NULL },
+	{ 0, 0, NULL, NULL },
+};
+
+#define SPA_TYPE_INFO_Meta			SPA_TYPE_INFO_POINTER_BASE "Meta"
+#define SPA_TYPE_INFO_META_BASE			SPA_TYPE_INFO_Meta ":"
+
+#define SPA_TYPE_INFO_META_Array		SPA_TYPE_INFO_META_BASE "Array"
+#define SPA_TYPE_INFO_META_ARRAY_BASE		SPA_TYPE_INFO_META_Array ":"
+
+#define SPA_TYPE_INFO_META_Region		SPA_TYPE_INFO_META_BASE "Region"
+#define SPA_TYPE_INFO_META_REGION_BASE		SPA_TYPE_INFO_META_Region ":"
+
+#define SPA_TYPE_INFO_META_ARRAY_Region		SPA_TYPE_INFO_META_ARRAY_BASE "Region"
+#define SPA_TYPE_INFO_META_ARRAY_REGION_BASE	SPA_TYPE_INFO_META_ARRAY_Region ":"
+
+static const struct spa_type_info spa_type_meta_type[] = {
+	{ SPA_META_Invalid, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Invalid", NULL },
+	{ SPA_META_Header, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Header", NULL },
+	{ SPA_META_VideoCrop, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_REGION_BASE "VideoCrop", NULL },
+	{ SPA_META_VideoDamage, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_ARRAY_REGION_BASE "VideoDamage", NULL },
+	{ SPA_META_Bitmap, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Bitmap", NULL },
+	{ SPA_META_Cursor, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Cursor", NULL },
+	{ SPA_META_Control, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Control", NULL },
+	{ SPA_META_Busy, SPA_TYPE_Pointer, SPA_TYPE_INFO_META_BASE "Busy", NULL },
+	{ 0, 0, NULL, NULL },
+};
+
+/**
+ * \}
+ */
+
+#ifdef __cplusplus
+}  /* extern "C" */
+#endif
+
+#endif /* SPA_BUFFER_TYPES_H */