mirror of
https://gitlab.freedesktop.org/pipewire/pipewire.git
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5b0b9c43d0
Only send a buffer when we have received a NEED_DATA message. Add a signal to pulla buffer from the sink. Restructure the sink to use a queue like the source and only push a buffer when we can. Improve SpaData. Offset and size should be between 0 and maxsize, make sure we clamp correctly when needed. node_process_output completes the processing of the output after receiving HAVE_OUTPUT for async elements. It instructs the node that it now can produce more output.
136 lines
4.9 KiB
C
136 lines
4.9 KiB
C
/* Pinos
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* Copyright (C) 2015 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 __PINOS_STREAM_H__
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#define __PINOS_STREAM_H__
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#include <spa/include/spa/buffer.h>
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#include <spa/include/spa/format.h>
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#include <pinos/client/context.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct _PinosStream PinosStream;
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typedef enum {
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PINOS_STREAM_STATE_ERROR = -1,
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PINOS_STREAM_STATE_UNCONNECTED = 0,
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PINOS_STREAM_STATE_CONNECTING = 1,
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PINOS_STREAM_STATE_CONFIGURE = 2,
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PINOS_STREAM_STATE_READY = 3,
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PINOS_STREAM_STATE_PAUSED = 4,
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PINOS_STREAM_STATE_STREAMING = 5
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} PinosStreamState;
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const char * pinos_stream_state_as_string (PinosStreamState state);
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typedef enum {
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PINOS_STREAM_FLAG_NONE = 0,
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PINOS_STREAM_FLAG_AUTOCONNECT = (1 << 0),
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} PinosStreamFlags;
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typedef enum {
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PINOS_STREAM_MODE_BUFFER = 0,
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PINOS_STREAM_MODE_RINGBUFFER = 1,
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} PinosStreamMode;
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typedef struct {
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int64_t ticks;
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int32_t rate;
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} PinosTime;
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/**
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* PinosStream:
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*
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* Pinos stream object class.
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*/
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struct _PinosStream {
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PinosContext *context;
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SpaList link;
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char *name;
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PinosProperties *properties;
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PINOS_SIGNAL (destroy_signal, (PinosListener *listener,
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PinosStream *stream));
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PinosStreamState state;
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char *error;
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PINOS_SIGNAL (state_changed, (PinosListener *listener,
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PinosStream *stream));
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PINOS_SIGNAL (format_changed, (PinosListener *listener,
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PinosStream *stream,
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SpaFormat *format));
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PINOS_SIGNAL (add_buffer, (PinosListener *listener,
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PinosStream *stream,
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uint32_t id));
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PINOS_SIGNAL (remove_buffer, (PinosListener *listener,
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PinosStream *stream,
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uint32_t id));
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PINOS_SIGNAL (new_buffer, (PinosListener *listener,
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PinosStream *stream,
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uint32_t id));
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PINOS_SIGNAL (need_buffer, (PinosListener *listener,
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PinosStream *stream));
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};
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PinosStream * pinos_stream_new (PinosContext *context,
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const char *name,
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PinosProperties *props);
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void pinos_stream_destroy (PinosStream *stream);
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bool pinos_stream_connect (PinosStream *stream,
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PinosDirection direction,
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PinosStreamMode mode,
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const char *port_path,
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PinosStreamFlags flags,
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unsigned int n_possible_formats,
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SpaFormat **possible_formats);
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bool pinos_stream_disconnect (PinosStream *stream);
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bool pinos_stream_finish_format (PinosStream *stream,
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SpaResult res,
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SpaAllocParam **params,
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unsigned int n_params);
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bool pinos_stream_start (PinosStream *stream);
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bool pinos_stream_stop (PinosStream *stream);
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bool pinos_stream_get_time (PinosStream *stream,
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PinosTime *time);
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uint32_t pinos_stream_get_empty_buffer (PinosStream *stream);
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bool pinos_stream_recycle_buffer (PinosStream *stream,
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uint32_t id);
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SpaBuffer * pinos_stream_peek_buffer (PinosStream *stream,
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uint32_t id);
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bool pinos_stream_send_buffer (PinosStream *stream,
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uint32_t id);
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#ifdef __cplusplus
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}
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#endif
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#endif /* __PINOS_STREAM_H__ */
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