mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-11-10 13:30:05 -05:00
24108e01c1
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.
116 lines
2.6 KiB
C
116 lines
2.6 KiB
C
/* Spa ALSA Sink
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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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#ifndef __SPA_ALSA_UTILS_H__
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#define __SPA_ALSA_UTILS_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stddef.h>
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#include <asoundlib.h>
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#include <spa/queue.h>
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#include <spa/node.h>
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#include <spa/audio/format.h>
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typedef struct _SpaALSAState SpaALSAState;
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typedef struct _SpaALSABuffer SpaALSABuffer;
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typedef struct {
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SpaProps props;
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char device[64];
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char device_name[128];
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char card_name[128];
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uint32_t buffer_time;
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uint32_t period_time;
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bool period_event;
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} SpaALSAProps;
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#define MAX_BUFFERS 16
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struct _SpaALSABuffer {
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SpaBuffer *outbuf;
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SpaMetaHeader *h;
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void *ptr;
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bool outstanding;
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SpaALSABuffer *next;
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};
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struct _SpaALSAState {
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SpaHandle handle;
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SpaNode node;
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SpaClock clock;
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snd_pcm_stream_t stream;
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snd_output_t *output;
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SpaNodeEventCallback event_cb;
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void *user_data;
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SpaALSAProps props[2];
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bool opened;
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snd_pcm_t *hndl;
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bool have_format;
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SpaFormatAudio query_format;
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SpaFormatAudio current_format;
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snd_pcm_sframes_t buffer_frames;
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snd_pcm_sframes_t period_frames;
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snd_pcm_format_t format;
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int rate;
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int channels;
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size_t frame_size;
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SpaPortInfo info;
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SpaAllocParam *params[1];
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SpaAllocParamBuffers param_buffers;
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SpaPortStatus status;
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bool have_buffers;
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SpaALSABuffer buffers[MAX_BUFFERS];
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unsigned int n_buffers;
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SpaQueue free;
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SpaQueue ready;
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bool running;
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SpaPollFd fds[16];
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SpaPollItem poll;
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int64_t sample_count;
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int64_t last_ticks;
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int64_t last_monotonic;
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};
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int spa_alsa_set_format (SpaALSAState *state,
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SpaFormatAudio *fmt,
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SpaPortFormatFlags flags);
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int spa_alsa_start (SpaALSAState *state);
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int spa_alsa_stop (SpaALSAState *state);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* __SPA_ALSA_UTILS_H__ */
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