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pipewire/spa/lib/buffer.c

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Work on sink Remove _remove from properties, we can do the same with set of a NULL value. Add signals to the stream API to manage the buffers. Wrap those buffers in a GstBuffer in the pinossrc and pinossink elements and pool them in a bufferpool. Remove SPA_EVENT_TYPE_PULL_INPUT, we can do the same with NEED_INPUT and by using a ringbuffer. Do more complete allocation of buffers in the link. Use the buffer allocator if none of the nodes can allocate. Follow the node state to trigger negotiation and allocation. Remove offset and size when refering to buffers, we want to always deal with the complete buffer and use a ringbuffer for ranges or change the offset/size in the buffer data when needed. Serialize port_info structures as part of the port_update Print both the enum number and the name when debuging properties or formats.
2016-08-24 16:26:58 +02:00
/* Simple Plugin API
* Copyright (C) 2016 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.
*/
#include <stdint.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
#include <spa/buffer.h>
#include <spa/port.h>
Enable header metadata Enable the header metadata so that we have timestamps again. Rework allocation in the link a little. Reuse previously allocated buffers when possible. Keep track of where the buffers was allocated. Make some more convenience functions to initialize buffer headers. Make it so that we move allocations to the app. Make some helpers to make memfd memory in pinos now that we will be able to do all allocation there.
2016-09-30 17:07:38 +02:00
static const size_t header_sizes[] = {
0,
sizeof (SpaMetaHeader),
sizeof (SpaMetaPointer),
sizeof (SpaMetaVideoCrop),
sizeof (SpaMetaRingbuffer),
};
Work on sink Remove _remove from properties, we can do the same with set of a NULL value. Add signals to the stream API to manage the buffers. Wrap those buffers in a GstBuffer in the pinossrc and pinossink elements and pool them in a bufferpool. Remove SPA_EVENT_TYPE_PULL_INPUT, we can do the same with NEED_INPUT and by using a ringbuffer. Do more complete allocation of buffers in the link. Use the buffer allocator if none of the nodes can allocate. Follow the node state to trigger negotiation and allocation. Remove offset and size when refering to buffers, we want to always deal with the complete buffer and use a ringbuffer for ranges or change the offset/size in the buffer data when needed. Serialize port_info structures as part of the port_update Print both the enum number and the name when debuging properties or formats.
2016-08-24 16:26:58 +02:00
More work on memory Add explicit DMABUF memory because we can't use it like an fd in v4l2. mmap random fd memory and use userptr in v4l2 to use it. Allocate buffer data memory in memfd when no node can allocate. Improve debug some more
2016-10-04 15:56:33 +02:00
size_t
spa_meta_type_get_size (SpaMetaType type)
Enable header metadata Enable the header metadata so that we have timestamps again. Rework allocation in the link a little. Reuse previously allocated buffers when possible. Keep track of where the buffers was allocated. Make some more convenience functions to initialize buffer headers. Make it so that we move allocations to the app. Make some helpers to make memfd memory in pinos now that we will be able to do all allocation there.
2016-09-30 17:07:38 +02:00
{
More work on memory Add explicit DMABUF memory because we can't use it like an fd in v4l2. mmap random fd memory and use userptr in v4l2 to use it. Allocate buffer data memory in memfd when no node can allocate. Improve debug some more
2016-10-04 15:56:33 +02:00
if (type <= 0 || type >= SPA_N_ELEMENTS (header_sizes))
return 0;
Enable header metadata Enable the header metadata so that we have timestamps again. Rework allocation in the link a little. Reuse previously allocated buffers when possible. Keep track of where the buffers was allocated. Make some more convenience functions to initialize buffer headers. Make it so that we move allocations to the app. Make some helpers to make memfd memory in pinos now that we will be able to do all allocation there.
2016-09-30 17:07:38 +02:00
More work on memory Add explicit DMABUF memory because we can't use it like an fd in v4l2. mmap random fd memory and use userptr in v4l2 to use it. Allocate buffer data memory in memfd when no node can allocate. Improve debug some more
2016-10-04 15:56:33 +02:00
return header_sizes[type];
Work on sink Remove _remove from properties, we can do the same with set of a NULL value. Add signals to the stream API to manage the buffers. Wrap those buffers in a GstBuffer in the pinossrc and pinossink elements and pool them in a bufferpool. Remove SPA_EVENT_TYPE_PULL_INPUT, we can do the same with NEED_INPUT and by using a ringbuffer. Do more complete allocation of buffers in the link. Use the buffer allocator if none of the nodes can allocate. Follow the node state to trigger negotiation and allocation. Remove offset and size when refering to buffers, we want to always deal with the complete buffer and use a ringbuffer for ranges or change the offset/size in the buffer data when needed. Serialize port_info structures as part of the port_update Print both the enum number and the name when debuging properties or formats.
2016-08-24 16:26:58 +02:00
}
mem: remove memory stuff Remove the memory stuff from the spa API, we can do thing more simple and efficiently if we always allocate buffers outside of the plugins and only implement an alloc function on the node when it can do something clever. Move serialize code to the props/format/buffer code Make it possible to copy a format and properties.
2016-09-29 18:18:59 +02:00
size_t
spa_buffer_get_size (const SpaBuffer *buffer)
{
size_t size;
unsigned int i;
if (buffer == NULL)
return 0;
size = sizeof (SpaBuffer);
for (i = 0; i < buffer->n_metas; i++)
Enable header metadata Enable the header metadata so that we have timestamps again. Rework allocation in the link a little. Reuse previously allocated buffers when possible. Keep track of where the buffers was allocated. Make some more convenience functions to initialize buffer headers. Make it so that we move allocations to the app. Make some helpers to make memfd memory in pinos now that we will be able to do all allocation there.
2016-09-30 17:07:38 +02:00
size += sizeof (SpaMeta) + buffer->metas[i].size;
mem: remove memory stuff Remove the memory stuff from the spa API, we can do thing more simple and efficiently if we always allocate buffers outside of the plugins and only implement an alloc function on the node when it can do something clever. Move serialize code to the props/format/buffer code Make it possible to copy a format and properties.
2016-09-29 18:18:59 +02:00
for (i = 0; i < buffer->n_datas; i++)
size += sizeof (SpaData);
return size;
}
size_t
spa_buffer_serialize (void *dest, const SpaBuffer *buffer)
{
SpaBuffer *tb;
SpaMeta *mp;
SpaData *dp;
void *p;
unsigned int i;
if (buffer == NULL)
return 0;
tb = dest;
memcpy (tb, buffer, sizeof (SpaBuffer));
mp = SPA_MEMBER (tb, sizeof(SpaBuffer), SpaMeta);
dp = SPA_MEMBER (mp, sizeof(SpaMeta) * tb->n_metas, SpaData);
p = SPA_MEMBER (dp, sizeof(SpaData) * tb->n_datas, void);
tb->metas = SPA_INT_TO_PTR (SPA_PTRDIFF (mp, tb));
tb->datas = SPA_INT_TO_PTR (SPA_PTRDIFF (dp, tb));
for (i = 0; i < tb->n_metas; i++) {
memcpy (&mp[i], &buffer->metas[i], sizeof (SpaMeta));
memcpy (p, mp[i].data, mp[i].size);
mp[i].data = SPA_INT_TO_PTR (SPA_PTRDIFF (p, tb));
p += mp[i].size;
}
for (i = 0; i < tb->n_datas; i++)
memcpy (&dp[i], &buffer->datas[i], sizeof (SpaData));
return SPA_PTRDIFF (p, tb);
}
SpaBuffer *
spa_buffer_deserialize (void *src, off_t offset)
{
SpaBuffer *b;
unsigned int i;
b = SPA_MEMBER (src, offset, SpaBuffer);
if (b->metas)
b->metas = SPA_MEMBER (b, SPA_PTR_TO_INT (b->metas), SpaMeta);
for (i = 0; i < b->n_metas; i++) {
SpaMeta *m = &b->metas[i];
if (m->data)
m->data = SPA_MEMBER (b, SPA_PTR_TO_INT (m->data), void);
}
if (b->datas)
b->datas = SPA_MEMBER (b, SPA_PTR_TO_INT (b->datas), SpaData);
return b;
}
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