mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-02 09:01:50 -05:00
d828073bb8
simplify port numbering again by using 0->max_ports for bot input ports and output ports. This means we need to tall what direction the port is. Add port_info serialize functions Copy metadata and data when we are not sharing buffers. Make pinossink work again.
101 lines
2.5 KiB
C
101 lines
2.5 KiB
C
/* Simple Plugin API
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <stdint.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include <spa/port.h>
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#include <spa/debug.h>
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size_t
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spa_port_info_get_size (const SpaPortInfo *info)
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{
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size_t len;
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unsigned int i;
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if (info == NULL)
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return 0;
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len = sizeof (SpaPortInfo);
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len += info->n_params * sizeof (SpaAllocParam *);
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for (i = 0; i < info->n_params; i++)
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len += info->params[i]->size;
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return len;
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}
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size_t
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spa_port_info_serialize (void *p, const SpaPortInfo *info)
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{
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SpaPortInfo *pi;
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SpaAllocParam **ap;
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int i;
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size_t len;
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if (info == NULL)
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return 0;
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pi = p;
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memcpy (pi, info, sizeof (SpaPortInfo));
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ap = SPA_MEMBER (pi, sizeof (SpaPortInfo), SpaAllocParam *);
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if (info->n_params)
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pi->params = SPA_INT_TO_PTR (SPA_PTRDIFF (ap, pi));
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else
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pi->params = 0;
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pi->features = 0;
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p = SPA_MEMBER (ap, sizeof (SpaAllocParam*) * info->n_params, void);
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for (i = 0; i < info->n_params; i++) {
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len = info->params[i]->size;
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memcpy (p, info->params[i], len);
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ap[i] = SPA_INT_TO_PTR (SPA_PTRDIFF (p, pi));
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p = SPA_MEMBER (p, len, void);
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}
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return SPA_PTRDIFF (p, pi);
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}
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SpaPortInfo *
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spa_port_info_deserialize (void *p, off_t offset)
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{
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SpaPortInfo *pi;
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unsigned int i;
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pi = SPA_MEMBER (p, offset, SpaPortInfo);
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if (pi->params)
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pi->params = SPA_MEMBER (pi, SPA_PTR_TO_INT (pi->params), SpaAllocParam *);
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for (i = 0; i < pi->n_params; i++) {
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pi->params[i] = SPA_MEMBER (pi, SPA_PTR_TO_INT (pi->params[i]), SpaAllocParam);
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}
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return pi;
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}
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SpaPortInfo *
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spa_port_info_copy_into (void *dest, const SpaPortInfo *info)
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{
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if (info == NULL)
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return NULL;
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spa_port_info_serialize (dest, info);
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return spa_port_info_deserialize (dest, 0);
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}
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